U.S. patent application number 17/180855 was filed with the patent office on 2021-06-10 for sweeping mechanism and sweeping robot.
The applicant listed for this patent is GUANGZHOU XIAOLUO ROBOTICS CO., LTD.. Invention is credited to Beichen Li.
Application Number | 20210169286 17/180855 |
Document ID | / |
Family ID | 1000005418541 |
Filed Date | 2021-06-10 |
United States Patent
Application |
20210169286 |
Kind Code |
A1 |
Li; Beichen |
June 10, 2021 |
Sweeping Mechanism and Sweeping Robot
Abstract
A sweeping mechanism comprises an air duct suction opening (12)
formed in the bottom (11) of a shell (1) and at least two sweeping
brushes (15) which are independently arranged on the bottom (11) of
the shell (1) and are separated from the air duct suction opening
(12), and each of the at least two sweeping brushes (15) is driven
to move back and forth integrally close to and far away from the
air duct suction opening (12). The invention further provides a
sweeping robot. The sweeping mechanism and the sweeping robot can
effectively solve the problems of dust suction blockage and the
like caused by winding due to the fact that the rolling main brush
(108) is arranged in the air suction opening (107), and the dust
suction efficiency and effect are effectively improved.
Inventors: |
Li; Beichen; (Guangzhou,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
GUANGZHOU XIAOLUO ROBOTICS CO., LTD. |
Guangzhou |
|
CN |
|
|
Family ID: |
1000005418541 |
Appl. No.: |
17/180855 |
Filed: |
February 21, 2021 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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PCT/CN2018/101601 |
Aug 21, 2018 |
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17180855 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A47L 9/0466 20130101;
A47L 9/0405 20130101; A47L 2201/00 20130101 |
International
Class: |
A47L 9/04 20060101
A47L009/04 |
Claims
1. A sweeping mechanism, comprising an air duct suction opening
formed in a bottom of a shell and at least two sweeping brushes
which are independently arranged at the bottom of the shell and are
separated from the air duct suction opening, and each of the at
least two sweeping brushes is driven to move back and forth
integrally close to and away from the air duct suction opening.
2. The sweeping mechanism according to claim 1, wherein each of the
at least two sweeping brushes is driven to move back and forth
integrally between the air duct suction opening and en edge of the
bottom of the shell.
3. The sweeping mechanism according to claim 1, wherein each of the
at least two sweeping brushes moves back and forth in a direction
of an axis thereof; or, each of the at least two sweeping brushes
moves back and forth in a direction perpendicular to an axis
thereof.
4. The sweeping mechanism according to claim 1, wherein each of the
at least two sweeping brushes swings back and forth around the axis
thereof, and a swing range of each of the at least two sweeping
brushes swinging back and forth around the axis thereof is 120
degrees; or, each of the at least two sweeping brushes rotates
360.degree. about the axis thereof.
5. The sweeping mechanism according to claim 1, wherein each of the
at least two sweeping brushes comprises a fixed seat arranged at
the bottom of the shell, a movable support arranged on the fixed
seat and bristles arranged on the movable support, and the movable
support is driven by a driving component to move back and forth
relative to the fixed seat.
6. The sweeping mechanism according to claim 5, wherein the movable
support is driven by the driving component to move back and forth
relative to the fixed seat as follows: moving back and forth in a
direction of an axis thereof; or moving back and forth in a
direction perpendicular to an axis thereof.
7. The sweeping mechanism according to claim 6, wherein the movable
support is further driven by a driving component to move relative
to the fixed seat as follows: swinging back and forth around an
axis thereof, and a swinging range is 120.degree.; or rotating
360.degree. around an axis thereof.
8. The sweeping mechanism according to claim 5, wherein the fixed
seat comprises a limiting body, a containing groove is formed in
the limiting body, the movable support comprises a movable body for
containing bristles, a driven member is arranged at a bottom of the
movable body, and the driven member extends out of the containing
groove and drives the movable body to move back and forth in the
containing groove under an action of the driving component.
9. The sweeping mechanism according to claim 8, wherein the movable
body reciprocates in a length direction in the containing groove; a
length of the movable body is smaller than that of the containing
groove; the movable body comprises an upper portion for arranging
bristles and a lower portion connected with the upper portion, and
the driven member is arranged on the bottom surface of the lower
portion; a longitudinal section of the movable body in a width
direction of the movable body is in a convex shape; a width of the
upper portion is smaller than that of the containing groove so that
the upper portion can be contained in the containing groove, and a
width of the lower portion is larger than that of the containing
groove.
10. The sweeping mechanism according to claim 8, wherein the
movable body reciprocates in a width direction in the containing
groove; a width of the movable body is smaller than that of the
containing groove; the movable body comprises an upper portion for
arranging bristles and a lower portion connected with the upper
portion, and the driven member is arranged on a bottom surface of
the lower portion; a longitudinal section of the movable body in a
length direction of the movable body is in a convex shape; a length
of the upper portion is smaller than that of the containing groove
so that the upper portion can be contained in the containing
groove, and a length of the lower portion is larger than that of
the containing groove.
11. The sweeping mechanism according to claim 1, wherein the at
least two sweeping brushes which are independently arranged at the
bottom of the shell and are separated from the air duct suction
opening comprise two sweeping brushes, and the two sweeping brushes
are arranged on two sides of the air duct suction opening
respectively or arranged between a front end of the bottom of the
shell and the air duct suction opening; and the two sweeping
brushes integrally form a straight line shape, a splayed shape or
an inverted splayed shape.
12. The sweeping mechanism according to claim 1, wherein the at
least two sweeping brushes which are independently arranged at the
bottom of the shell and are separated from the air duct suction
opening comprise pluralities of sweeping brushes, and the
pluralities of sweeping brushes are arranged between a front end of
the bottom of the shell and the air duct suction opening.
13. The sweeping mechanism according to claim 1, further comprising
at least two grooves formed in a surface of the bottom of the
shell, each of the at least two grooves communicating with the air
duct suction opening to form a dust guide air duct for guiding dust
into the air duct suction opening; one end of each of the at least
two grooves is connected with the air duct suction opening, and an
other end of each of the at least two grooves is in smooth
transition connection with an edge of the bottom of the shell; and
the at least two sweeping brushes are disposed to mate with the at
least two grooves to facilitate guiding raised dust into the air
duct suction opening through the at least two grooves.
14. The sweeping mechanism according to claim 13, wherein the at
least two grooves formed in the surface of the bottom of the shell
comprise a first groove and a second groove which are formed in two
sides of the air duct suction opening respectively, and the at
least two sweeping brushes arranged at the bottom of the shell
comprises a first sweeping brush and a second sweeping brush which
are arranged in front of the first groove and the second groove
respectively; and the first sweeping brush is disposed parallel to
the first groove and the second sweeping brush is disposed parallel
to the second groove.
15. The sweeping mechanism according to claim 14, wherein the first
groove and the second groove each comprises pluralities of
sub-grooves arranged in parallel, the first sweeping brush and the
second sweeping brush each comprises pluralities of sweeping
sub-brushes arranged in parallel, and the pluralities of
sub-grooves and the pluralities of sweeping sub-brushes are
arranged alternately.
16. The sweeping mechanism according to claim 13, wherein the air
duct suction opening is formed in a central axis of the bottom of
the shell, and a distance between the air duct suction opening and
a front end of the bottom of the shell is smaller than a distance
between the air duct suction opening and a rear end of the bottom
of the shell; a depth of each of the at least one groove is
gradually increased from one end away from the air duct suction
opening to the other end connected with the air duct suction
opening.
17. The sweeping mechanism according to claim 13, wherein an
inclined guide surface is arranged at a front end of the bottom of
the shell, an included angle theta between the inclined guide
surface and a horizontal plane is more than 0 degree and less than
45 degrees, and a front or rear edge of the air duct suction
opening abuts a rear end of the inclined guide surface; the
inclined guide surface comprises a first inclined guide surface and
a second inclined guide surface which are connected in a
front-to-back transition manner, and an included angle between the
first inclined guide surface and a horizontal plane is larger than
an included angle between the second inclined guide surface and the
horizontal plane; or, the inclined guide surface is a curved
surface, and the angle theta between the inclined guide surface and
the horizontal plane gradually decreases from the front end to the
rear end of the inclined guide surface.
18. The sweeping mechanism according to claim 17, wherein the at
least two grooves formed in the surface of the bottom of the shell
comprise a first groove, a second groove and a third groove, the
first groove and the second groove are formed in two sides of the
air duct suction opening respectively, and front edges or rear
edges of the first groove and the second groove abut the rear end
of the inclined guide surface; a front end of the third groove is
in smooth transition connection with the front end of the bottom of
the shell, and a rear end of the third groove is connected with the
air duct suction opening; the at least one sweeping brush arranged
at the bottom of the shell comprises a first sweeping brush and a
second sweeping brush, and the first sweeping brush and the second
sweeping brush are arranged in front of the first groove and the
second groove respectively and arranged on two sides of the third
groove.
19. The sweeping mechanism according to claim 1, further comprising
a dust collection box and a draught fan which are arranged inside
the shell, and the air duct suction opening, the dust collection
box and the draught fan are sequentially communicated; the draught
fan comprises a first draught fan and a second draught fan, and the
first draught fan and the second draught fan communicate with the
dust collection box through an air suction guide component; the air
suction guide component comprises a first air suction channel and a
second air suction channel which are independent of each other, the
first draught fan is communicated with the first air suction
channel, and the second draught fan is communicated with the second
air suction channel.
20. A sweeping robot, comprising the sweeping mechanism according
to claim 1.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present application is a Continuation Application of PCT
application No. PCT/CN2018/101601 filed on Aug. 21, 2018, the
contents of which are hereby incorporated by reference.
FIELD OF THE INVENTION
[0002] The invention relates to the field of intelligent robots, in
particular to a sweeping mechanism and a sweeping robot.
BACKGROUND OF THE INVENTION
[0003] A sweeping robot, also known as a cleaning robot, an
intelligent dust collection robot, a robot dust collector and the
like, is one of intelligent household appliances, and can
automatically complete floor cleaning work in a room by means of
certain artificial intelligence. The sweeping robot generally
adopts a brush sweeping mode and a vacuum mode to absorb impurities
on the ground and enter a garbage storage box thereof, so that the
function of cleaning the ground is achieved. Generally speaking, a
robot that performs cleaning, dust collection and floor wiping is
collectively called a sweeping robot.
[0004] Currently, a common structure of a sweeping robot is shown
in FIG. 1, the sweeping robot comprises a robot body 100, the robot
body 100 comprises a face shell 101, a bottom shell 102 and a face
cover (not shown), and the bottom shell 102 is sleeved and screwed
to the bottom of the face shell 101. A universal wheel 104 is
arranged at the front end of the bottom shell 102, a left driving
wheel 105 and a right driving wheel 106 are respectively arranged
on two sides of the middle part of the bottom shell 102, and the
universal wheel 104, the left driving wheel 105 and the right
driving wheel 106 are connected with a motor (not shown). An air
suction opening 107 is formed between the left driving wheel 105
and the right driving wheel 106, a main brush 108 is arranged in
the air suction opening 107, and the main brush 108 is a rolling
brush, is in transmission connection with a rolling brush motor
(not shown) and is driven by the rolling brush motor to rotate. The
main brush 108 has a brush shaft 1081 and brush bristles 1082
extending outwardly from the outer wall surface of the brush shaft
1081. The brush shaft 1081 is driven by the rolling brush motor to
rotate, and the brush bristles 1082 sweep the ground to raise dust
during rotation of the brush shaft 1081. A dust collection box (not
shown) communicated with the air suction opening 107 and a dust
collection fan communicated with the dust collection box are
arranged in the robot body 100. Under the action of the dust
collection fan, dust raised by the main brush 108 is sucked into
the dust collection box through the air suction opening 107.
[0005] A left side brush 1091 and a right side brush 1092 are
arranged in front of the left driving wheel 105 and the right
driving wheel 106 respectively, the left side brush 1091 and the
right side brush 1092 are arranged to be three-blade type brush
handles 10911 and 10921, and brush bristles 10912 and 10922 are
installed on the brush handles. The left side brush 1091 and the
right side brush 1092 are connected with side brush motors
respectively and enable the brush handles 10911 and 10921 to rotate
around their center shafts by 360 degrees under the driving action
of the side brush motors respectively, and therefore the brush
bristles 10912 and 10922 are driven to rotate so as to sweep dust
on the ground and suck the dust into the dust collection box
through the air suction opening 107.
[0006] The present inventor finds that the prior art has at least
the following technical drawbacks during the practice of the
present invention:
[0007] the rolling main brush is arranged in the air suction
opening for cleaning, the rolling main brush is easy to wind hairs
on the ground in the rotating process, the air suction opening is
blocked due to the winding of the hairs after long-term use, the
dust suction and cleaning effects are influenced, and the normal
use of the sweeper is influenced; and the service life of the
sweeper is shortened because the main brush is severely blocked.
The hairs on the rolling main brush need to be manually cleaned
regularly, and inconvenience is brought to a user due to
troublesome cleaning.
SUMMARY OF THE INVENTION
[0008] An embodiment of the present invention aims to provide a
sweeping mechanism and a sweeping robot, which can effectively
solve the problems of dust collection blockage and the like caused
by winding due to arrangement of a rolling main brush in an air
duct suction opening in the prior art, and effectively improve the
dust suction efficiency and effect.
[0009] In order to achieve the purpose, the embodiment of the
invention provides a sweeping mechanism, the sweeping mechanism
comprises an air duct suction opening formed in a bottom of a shell
and at least one sweeping brush which is independently arranged at
the bottom of the shell and is separated from the air duct suction
opening, and each of the at least one sweeping brush is driven to
move back and forth.
[0010] Preferably, the at least one sweeping brush is driven to
move back and forth integrally close to and away from the air duct
suction opening.
[0011] Preferably, each of the at least one sweeping brush is
driven to move back and forth integrally between the air duct
suction opening and en edge of the bottom of the shell.
[0012] Preferably, each of the at least one sweeping brush moves
back and forth in a direction of an axis thereof.
[0013] Preferably, each of the at least one sweeping brush moves
back and forth in a direction perpendicular to an axis thereof.
[0014] Preferably, each of the at least one sweeping brush swings
back and forth around the axis thereof, and a swing range of each
of the at least one sweeping brush swinging back and forth around
the axis thereof is 120 degrees.
[0015] Preferably, each of the at least one sweeping brush rotates
360.degree. about the axis thereof.
[0016] Preferably, each of the at least one sweeping brush
comprises a fixed seat arranged at the bottom of the shell, a
movable support arranged on the fixed seat and bristles arranged on
the movable support, and the movable support is driven by a driving
component to move back and forth relative to the fixed seat.
[0017] Preferably, the movable support is driven by the driving
component to move back and forth relative to the fixed seat as
follows:
[0018] moving back and forth in a direction of an axis thereof; or
moving back and forth in a direction perpendicular to an axis
thereof.
[0019] Preferably, the movable support is further driven by a
driving component to move relative to the fixed seat as follows:
swinging back and forth around an axis thereof, and a swinging
range is 120.degree.; or rotating 360.degree. around an axis
thereof.
[0020] Preferably, the movable support is driven by a driving
component to move up and down away from or close to a horizontal
plane where the fixed seat is located.
[0021] Preferably, the fixed seat comprises a limiting body, a
containing groove is formed in the limiting body, the movable
support comprises a movable body for containing bristles, a driven
member is arranged at a bottom of the movable body, and the driven
member extends out of the containing groove and drives the movable
body to move back and forth in the containing groove under an
action of the driving component.
[0022] Preferably, the driving component comprises a motor and a
coupling member driven by the motor, and the coupling member is
connected with the driven member in a matched manner.
[0023] Preferably, the motor is a brushed direct current motor or a
brushless direct current motor, and the coupling member is an
eccentric shaft.
[0024] Preferably, the movable body reciprocates in a length
direction in the containing groove; a length of the movable body is
smaller than that of the containing groove; the movable body
comprises an upper portion for arranging bristles and a lower
portion connected with the upper portion, and the driven member is
arranged on the bottom surface of the lower portion; a longitudinal
section of the movable body in a width direction of the movable
body is in a convex shape; a width of the upper portion is smaller
than that of the containing groove so that the upper portion can be
contained in the containing groove, and a width of the lower
portion is larger than that of the containing groove.
[0025] Preferably, the movable body reciprocates in a width
direction in the containing groove; a width of the movable body is
smaller than that of the containing groove; the movable body
comprises an upper portion for arranging bristles and a lower
portion connected with the upper portion, and the driven member is
arranged on a bottom surface of the lower portion; a longitudinal
section of the movable body in a length direction of the movable
body is in a convex shape; a length of the upper portion is smaller
than that of the containing groove so that the upper portion can be
contained in the containing groove, and a length of the lower
portion is larger than that of the containing groove.
[0026] Preferably, the fixed seat further comprises a bottom case,
the limiting body is fixed inside the bottom case through a
connecting piece so as to prevent the movable body from being
separated from the limiting body, and an opening is formed in a
bottom of the bottom case to extend out of the driven member.
[0027] Preferably, the bristles are mainly formed by arranging
pluralities of bristle bundles.
[0028] Preferably, the movable support provided on each fixed seat
comprises pluralities;
[0029] and/or the bristles arranged on each movable support
comprise pluralities of rows.
[0030] Preferably, each of the pluralities of rows of the bristles
extends out of a surface of the bottom of the shell to abut against
ground.
[0031] Preferably, an upper surface of each of the pluralities of
rows of the bristles is in a same horizontal plane to be flush with
the ground.
[0032] Preferably, each of the pluralities of bristle bundles is
driven to rotate 360.degree. around a center of circle thereof.
[0033] Preferably, the at least one sweeping brush which is
independently arranged at the bottom of the shell and is separated
from the air duct suction opening comprises one sweeping brush, and
the one sweeping brush is arranged between a front end of the
bottom of the shell and the air duct suction opening.
[0034] Preferably, the one sweeping brush is provided with bristles
which are integrally linear, wavy, or arc-shaped.
[0035] Preferably, the at least one sweeping brush which is
independently arranged at the bottom of the shell and is separated
from the air duct suction opening comprises two sweeping brushes,
and the two sweeping brushes are arranged on two sides of the air
duct suction opening respectively or arranged between a front end
of the bottom of the shell and the air duct suction opening.
[0036] Preferably, the two sweeping brushes integrally form a
straight line shape, a splayed shape or an inverted splayed
shape.
[0037] Preferably, each of the two sweeping brushes is provided
with bristles which are integrally linear, wavy, or arc-shaped.
[0038] Preferably, the at least one sweeping brush which is
independently arranged at the bottom of the shell and is separated
from the air duct suction opening comprises pluralities of sweeping
brushes, and the pluralities of sweeping brushes are integrally
arranged between a front end of the bottom of the shell and the air
duct suction opening in a line shape.
[0039] Preferably, the sweeping mechanism further comprises a side
brush disposed on each of at least one corner of a front end of the
bottom of the shell, the side brush being adapted to rotate when
driven by a driving means.
[0040] Preferably, a left corner and a right corner of the front
end of the bottom of the shell each is provided with the side
brush.
[0041] Preferably, each side brush is a multi-blade type rotary
side brush.
[0042] Preferably, each side brush is a three-blade type rotary
side brush.
[0043] Preferably, each side brush is set so that bristles thereof
do not interfere with each of the at least one sweeping brush
during rotation.
[0044] Preferably, the sweeping mechanism further comprises at
least one groove formed in a surface of the bottom of the shell,
each of the at least one groove communicating with the air duct
suction opening to form a dust guide air duct for guiding dust into
the air duct suction opening.
[0045] Preferably, one end of each of the at least one groove is
connected with the air duct suction opening, and an other end of
each of the at least one groove is in smooth transition connection
with an edge of the bottom of the shell.
[0046] Preferably, the at least one groove formed in the surface of
the bottom of the shell comprises pluralities of grooves, and the
pluralities of grooves satisfy: the pluralities of grooves are
formed in a front end of a surface of the bottom of the shell in
parallel; or, the pluralities of grooves are formed in two sides of
the air duct suction opening in parallel.
[0047] Preferably, the at least one sweeping brush comprises
pluralities of sweeping brushes, the pluralities of sweeping
brushes being disposed to mate with the pluralities of grooves to
facilitate guiding raised dust through the pluralities of grooves
into the air duct suction opening.
[0048] Preferably, the pluralities of sweeping brushes and the
pluralities of grooves are disposed alternately.
[0049] Preferably, the pluralities of sweeping brushes is disposed
parallel to the pluralities of grooves.
[0050] Preferably, the at least one sweeping brush is disposed to
mate with the at least one groove to facilitate guiding raised dust
into the air duct suction opening through the at least one
groove.
[0051] Preferably, the at least one grooves formed in the surface
of the bottom of the shell comprise a first groove and a second
groove which are formed in two sides of the air duct suction
opening respectively, and the at least one sweeping brush arranged
at the bottom of the shell comprises a first sweeping brush and a
second sweeping brush which are arranged in front of the first
groove and the second groove respectively.
[0052] Preferably, the first sweeping brush is disposed parallel to
the first groove and the second sweeping brush is disposed parallel
to the second groove.
[0053] Preferably, the first groove and the second groove each
comprises pluralities of sub-grooves arranged in parallel, the
first sweeping brush and the second sweeping brush each comprises
pluralities of sweeping sub-brushes arranged in parallel, and the
pluralities of sub-grooves and the pluralities of sweeping
sub-brushes are arranged alternately.
[0054] Preferably, the first groove and the second groove are
integrally formed in a straight line shape, a splayed shape or an
inverted splayed shape.
[0055] Preferably, the at least one groove is disposed between a
front end of the surface of the bottom of the shell and the air
duct suction opening, and the at least one sweeping brush and the
at least one groove are arranged in parallel.
[0056] Preferably, the at least one groove comprises at least two
grooves, the at least two grooves are arranged between the front
end of the surface of the bottom of the shell and the air duct
suction opening in parallel, and the at least one sweeping brush
and the at least two grooves are arranged alternately.
[0057] Preferably, the air duct suction opening is shaped as a
circle, an ellipse, a triangle, a quadrilateral, an irregular
polygon, or an approximate ellipse with a rectangular middle part
and semicircular sides.
[0058] Preferably, the air duct suction opening is shaped as a
polygon, and one end of each of the at least one groove is
correspondingly connected with one edge of the air duct suction
opening.
[0059] Preferably, the at least one groove formed in the surface of
the bottom of the shell comprises two or more grooves, the shape of
the air duct suction opening is matched with that of the two or
more grooves, and one end of each of the two or more grooves is
correspondingly connected with one edge of the air duct suction
opening.
[0060] Preferably, the air duct suction opening is rectangular, the
at least one groove formed in the surface of the bottom of the
shell comprises a first groove and a second groove, and one end of
the first groove and one end of the second groove are connected
with a left short edge and a right short edge of the air duct
suction opening respectively.
[0061] Preferably, a width of the one end of the first groove and a
width of the one end of the second groove are equal to a length of
the left short edge and a length of the right short edge of the air
duct suction opening.
[0062] Preferably, the at least one groove formed in the surface of
the bottom of the shell further comprises a third groove, a front
end of the third groove is in smooth transition connection with an
edge of a front end of the bottom of the shell, and a rear end of
the third groove is connected with a front edge of the air duct
suction opening.
[0063] Preferably, a width of the rear end of the third groove is
less than or equal to a length of the front edge of the air duct
suction opening.
[0064] Preferably, a depth of each of the at least one groove is
gradually increased from one end away from the air duct suction
opening to the other end connected with the air duct suction
opening.
[0065] Preferably, the air duct suction opening is formed in a
central axis of the bottom of the shell, and a distance between the
air duct suction opening and a front end of the bottom of the shell
is smaller than a distance between the air duct suction opening and
a rear end of the bottom of the shell.
[0066] Preferably, an inclined guide surface is arranged at a front
end of the bottom of the shell, and an included angle theta between
the inclined guide surface and a horizontal plane is more than 0
degree and less than 45 degrees.
[0067] Preferably, the included angle theta between the inclined
guide surface and the horizontal plane is more than 5 degrees and
less than 45 degrees.
[0068] Preferably, the included angle theta between the inclined
guide surface and the horizontal plane is more than 10 degrees and
less than 20 degrees.
[0069] Preferably, a front or rear edge of the air duct suction
opening abuts a rear end of the inclined guide surface.
[0070] Preferably, each of the at least one sweeping brush is
disposed on the inclined guide surface.
[0071] Preferably, the at least one sweeping brush arranged on the
inclined guide surface comprise a first sweeping brush and a second
sweeping brush, and the first sweeping brush and the second
sweeping brush are arranged at the front ends of two sides of the
air duct suction opening respectively.
[0072] Preferably, the inclined guide surface is further provided
with at least one groove, and each of the least one groove is
communicated with the air duct suction opening to form a dust guide
air duct for guiding dust into the air duct suction opening.
[0073] Preferably, the at least one groove formed in the surface of
the bottom of the shell comprises a first groove and a second
groove, the first groove and the second groove are formed in two
sides of the air duct suction opening respectively, and front edges
or rear edges of the first groove and the second groove abut the
rear end of the inclined guide surface.
[0074] Preferably, the at least one groove further comprises a
third groove, a front end of the third groove is in smooth
transition connection with the front end of the bottom of the
shell, and a rear end of the third groove is connected with the air
duct suction opening; the first sweeping brush and the second
sweeping brush are located in front of the first groove and the
second groove respectively and arranged on two sides of the third
groove.
[0075] Preferably, the inclined guide surface comprises a first
inclined guide surface and a second inclined guide surface which
are connected in a front-to-back transition manner, and an included
angle between the first inclined guide surface and a horizontal
plane is larger than an included angle between the second inclined
guide surface and the horizontal plane.
[0076] Preferably, the third groove is formed in the second
inclined guide surface, the front end of the third groove is in
smooth transition connection with a rear end of the first inclined
guide surface, and the rear end of the third groove is connected
with the air duct suction opening.
[0077] Preferably, the inclined guide surface is a curved surface,
and the angle theta between the inclined guide surface and the
horizontal plane gradually decreases from the front end to the rear
end of the inclined guide surface.
[0078] Preferably, the first sweeping brush is disposed parallel to
the first groove and the second sweeping brush is disposed parallel
to the second groove.
[0079] Preferably, each of the first sweeping brush and the second
sweeping brush moves back and forth in a direction of an axis
thereof.
[0080] Preferably, each of the first sweeping brush and the second
sweeping brush moves back and forth in a direction perpendicular to
an axis thereof.
[0081] Preferably, each of the first sweeping brush and the second
sweeping brush swings back and forth around an axis thereof, and a
swing range of each of the first sweeping brush and the second
sweeping brush swinging back and forth around the axis thereof is
120 degrees.
[0082] Preferably, each of the first sweeping brush and the second
sweeping brush rotates 360 degrees around an axis thereof.
[0083] Preferably, each of the first sweeping brush and the second
sweeping brush comprises at least one row of bristles, each of the
least one row of bristles comprising pluralities of bristle
bundles.
[0084] Preferably, each of the least one row of bristles extends
out of a surface of the bottom of the shell abut against
ground.
[0085] Preferably, an upper surface of each of the least one row of
bristles is in a same horizontal plane to be flush with the
ground.
[0086] Preferably, each of the at least one groove is integrally
formed with the air duct suction opening.
[0087] Preferably, the sweeping mechanism further comprises a
baffle arranged on a rear edge of the air duct suction opening.
[0088] Preferably, the sweeping mechanism further comprises
baffles, the baffles comprise a middle baffle arranged on a rear
edge of the air duct suction opening, and a left baffle and a right
baffle which are connected to a left side and a right side of the
middle baffle respectively, and the left baffle and the right
baffle are arranged on rear edges the two grooves respectively.
[0089] Preferably, the bottom of the shell is in a disc-like shape
with a front end edge being a straight line section.
[0090] Preferably, the sweeping mechanism further comprises a dust
collection box and a draught fan which are arranged inside the
shell, and the air duct suction opening, the dust collection box
and the draught fan are sequentially communicated.
[0091] Preferably, the draught fan comprises a first draught fan
and a second draught fan, and the first draught fan and the second
draught fan communicate with the dust collection box through an air
suction guide component; the air suction guide component comprises
a first air suction channel and a second air suction channel which
are independent of each other, the first draught fan is
communicated with the first air suction channel, and the second
draught fan is communicated with the second air suction
channel.
[0092] The embodiment of the present invention further provides a
sweeping robot which comprises the sweeping mechanism of any
embodiment.
[0093] Compared with the prior art, the embodiment of the present
invention has at least the following technical effects:
[0094] (1) at least one groove is formed in the surface of the
bottom of the shell, and each of the at least one groove is
communicated with the air duct suction opening to form a dust guide
air duct for guiding dust into the air duct suction opening, so
that the dust on the ground is favorably guided and sucked into the
air duct suction opening, and the dust suction efficiency is
improved. In addition, the dust guide air duct is adopted to
replace a rolling main brush arranged in the air suction opening,
and the problems that winding caused by the rolling main brush
blocks the air suction opening, and the sweeping effect of the dust
suction box is affected can be effectively avoided.
[0095] (2) the sweeping brush matched with the groove is arranged
at the bottom of the shell, so that the dust raised by the sweeping
brush is further favorably guided into the air duct suction opening
through the groove, and the dust suction efficiency is improved;
besides, the sweeping brush is arranged at the bottom of the shell
and is separated from the air duct suction opening to be
independently arranged, the dust collection efficiency can be more
effectively improved, and the problem that the sweeping effect of
the dust collection box is affected due to the fact that the
sweeping brush is wound to block the air duct suction opening after
being used for a long time can be avoided.
[0096] (3) at least one groove is formed in the surface of the
bottom of the shell, and rotary side brushes are arranged on at
least one corner (preferably the left corner and the right corner)
of the front end of the bottom of the shell in a matched mode, so
that the problem that the sweeping effect of the dust collection
box is affected due to the fact that the air dust suction opening
is blocked by winding of a rolling main brush arranged on the air
duct suction opening can be effectively avoided; and dust raised by
the side brushes can be guided into the air duct suction opening
through the groove, so that the dust suction efficiency is
improved, and particularly, the sweeping and cleaning effects on
corners are very ideal.
[0097] (4) the sweeping brush arranged at the bottom of the shell
integrally performs reciprocating circulating movement close to and
far away from the air duct suction opening when being driven to
sweep, so that dust raised by sweeping is favorably sucked into the
air duct suction opening in the moving process, and the sweeping
effect and the dust collection effect are improved.
[0098] (5) the sweeping brush arranged at the bottom of the shell
integrally does reciprocating circulating movement between the air
duct suction opening and the edge of the bottom of the shell when
being driven, and the sweeping brush is used for sweeping dust at
the center and the edge of the sweeping robot in the moving
process, namely, the sweeping brush provided by the embodiment of
the present invention can serve as a main brush and a side brush in
the moving process at the same time, the sweeping range of the
sweeping robot can be widened, the cost can be reduced, the main
brush, the side brush and corresponding drivers do not need to be
arranged respectively, and the cost is lower.
[0099] (6) the movable sweeping brush integrally doing
reciprocating circulation movement between the air duct suction
opening and the edge of the bottom of the shell is adopted to
replace a rotary side brush to sweep the area around the sweeping
robot, and the problems that hair is wound and a driving wheel
slips and the like due to an existing rotary side brush is used can
be effectively solved.
[0100] (7) the inclined guide surface is arranged between the air
duct suction opening and the edge of the front end of the bottom of
the shell, so that the obstacle crossing function can be achieved,
dust at the front end of the sweeping robot can be further guided
and sucked into the air duct suction opening, and the dust suction
efficiency is improved.
[0101] (8) the inclined guide surface between the air duct suction
opening and the front end edge of the bottom of the shell is set to
be a first inclined guide surface and a second inclined guide
surface which are in front-back transition connection, and the
included angle between the first inclined guide surface and the
horizontal plane is larger than that between the second inclined
guide surface and the horizontal plane. Thus, the included angle
between the first inclined guide face and the horizontal plane is
larger, the obstacle crossing function is improved, the included
angle between the second inclined guide face closer to the air duct
suction opening and the horizontal plane is smaller, the closer the
air duct suction opening is, the larger the suction force is, and
dust suction is facilitated.
[0102] and (9) the inclined guide surface between the air duct
suction opening and the edge of the front end of the bottom of the
shell is set to be a curved surface, and the included angle theta
between the inclined guide surface and the horizontal plane is
gradually reduced from the front end of the inclined guide surface
to the rear end of the inclined guide surface. Thus, the included
angle theta between the inclined guide face close to the edge of
the front end of the bottom of the shell and the horizontal plane
is larger, the obstacle crossing function is better improved, the
included angle theta between the inclined guide face close to the
air duct suction opening and the horizontal plane is smaller, the
closer the air duct suction opening is, the larger the suction
force is, and dust suction is better facilitated.
BRIEF DESCRIPTION OF THE DRAWINGS
[0103] FIG. 1 is a schematic structural view of a sweeping robot
employed in the prior art.
[0104] FIGS. 2A-2D are schematic structural views of a sweeping
robot and a sweeping mechanism thereof provided in Example 1 of the
present invention.
[0105] FIG. 2E shows embodiments of various alternative shapes of
an air duct suction opening of the sweeping mechanism provided in
Example 1 of the present invention.
[0106] FIGS. 3A-3C are schematic structural views of a sweeping
mechanism provided in Example 2 of the present invention.
[0107] FIG. 3D is a partially enlarged view of the schematic
structural view of the sweeping mechanism provided in Example 2 of
the present invention shown in FIG. 3B.
[0108] FIGS. 3E-3G are schematic structural views of alternative
embodiments of modes of motion and corresponding structures of a
sweeping brush of the sweeping mechanism provided in Example 2 of
the present invention.
[0109] FIGS. 4A-4F are structure views of a preferred embodiment of
a sweeping brush of the sweeping mechanism provided in Example 2 of
the present invention.
[0110] FIGS. 5A-5F are structure views of another preferred
embodiment of a sweeping brush of the sweeping mechanism provided
in Example 2 of the present invention.
[0111] FIGS. 6A-6B are schematic structural views of other
alternative embodiments of a bristle arrangement shape structure of
a sweeping brush of the sweeping mechanism provided in Example 2 of
the present invention.
[0112] FIG. 7A is a schematic view of a preferred embodiment of an
inclined guide surface of the sweeping mechanism provided by
Example 2 of the present invention.
[0113] FIG. 7B is a schematic view of another preferred embodiment
of an inclined guide surface of the sweeping mechanism provided by
Example 2 of the present invention.
[0114] FIGS. 8A-8C are schematic structural views of the sweeping
mechanism provided in Example 3 of the present invention.
[0115] FIGS. 8D-8E are schematic structural views of another
preferred embodiment of the sweeping mechanism provided in Example
3 of the present invention.
[0116] FIGS. 9A-9D are schematic structural views of a sweeping
mechanism provided in Example 4 of the present invention.
[0117] FIGS. 10A-10C are schematic structural views of structures
of the sweeping mechanism provided in Example 5 of the present
invention.
[0118] FIGS. 11A-11D are schematic structural views of the sweeping
mechanism provided in Example 6 of the present invention.
[0119] FIGS. 12A-12B are schematic structural views of the sweeping
mechanism provided in Example 7 of the present invention.
[0120] FIGS. 13A-13B are schematic structural views of the sweeping
mechanism provided in Example 8 of the present invention.
[0121] FIG. 14 is a schematic structural views of a sweeping
mechanism provided in Example 10 of the present invention.
[0122] FIGS. 15A-15F are schematic structural views of a sweeping
robot and a sweeping mechanism thereof provided in Example 11 of
the present invention.
[0123] FIG. 16 is a schematic structural view of a preferred
embodiment of a sweeping brush of the sweeping mechanism provided
in Example 11 of the present invention.
[0124] FIG. 17 is a schematic structural view of a sweeping
mechanism provided in Example 12 of the present invention.
[0125] FIG. 18 is a schematic structural view of a sweeping
mechanism provided in Example 13 of the present invention.
[0126] FIG. 19 is a schematic structural view of a sweeping
mechanism provided in Example 14 of the present invention.
[0127] FIG. 20 is a schematic structural view of the sweeping
mechanism provided in Example 15 of the present invention.
[0128] FIG. 21 is a schematic structural view of a sweeping
mechanism provided in Example 16 of the present invention.
[0129] FIG. 22 is a schematic structural view of a sweeping
mechanism provided in Example 17 of the present invention.
[0130] FIGS. 23A and 23B are schematic structural views of a
sweeping mechanism provided in Example 18 of the present
invention.
[0131] FIGS. 24A and 24B are schematic structural views of a
sweeping mechanism provided in Example 19 of the present
invention.
[0132] FIGS. 25A and 25B are schematic structural views of a
sweeping mechanism provided in Example 20 of the present
invention.
[0133] FIGS. 26A and 26B are schematic structural views of a
sweeping mechanism provided in Example 21 of the present
invention.
[0134] FIG. 27 is a schematic structural view of a sweeping
mechanism provided in Example 22 of the present invention.
[0135] FIGS. 28A-28C are schematic structural views of the sweeping
mechanism provided in Example 23 of the present invention.
[0136] FIG. 29 is a schematic structural view of a sweeping
mechanism provided in Example 24 of the present invention.
[0137] FIGS. 30A and 30B are schematic structural views of a
sweeping mechanism provided in Example 25 of the present
invention.
[0138] FIG. 31 is a schematic structural view of a sweeping
mechanism provided in Example 26 of the present invention.
[0139] FIG. 32 is a schematic structural view of a sweeping
mechanism provided in Example 27 of the present invention.
DETAILED DESCRIPTION OF ILLUSTRATED EMBODIMENTS
[0140] Technical solutions in embodiments of the present invention
will be described clearly and fully hereinafter in connection with
the accompanying drawings in embodiments of the present invention,
and obviously, the described embodiments are only a part of, and
not all, embodiments of the present invention. Based on the
embodiments of the present invention, all other embodiments
obtained by one of ordinary skill in the art without creative work
fall within the scope of the present invention.
[0141] In the description of the present invention, it is to be
understood that the terms "center", "longitudinal", "lateral",
"length", "width", "thickness", "upper", "lower", "front", "rear",
"left", "right", "vertical", "horizontal", "top", "bottom",
"inner", "outer", "clockwise", "counterclockwise", and the like,
indicate orientations or positional relationships based on those
shown in the drawings, merely for convenience of description and
simplification of the description, and do not indicate or imply
that the device or element referred to must have a particular
orientation, be constructed in a particular orientation, and be
operated, and thus, are not to be construed as limiting the present
invention.
[0142] Furthermore, the terms "first", "second" are used for
descriptive purposes only and are not to be construed as indicating
or implying relative importance or to implicitly indicate the
number of technical features indicated. Thus, a feature defined as
"first" or "second" may explicitly or implicitly include one or
more of that features. In the description of the present invention,
"pluralities" means at least two, e.g., two, three, etc., unless
explicitly specified otherwise.
[0143] In the present invention, unless expressly specified and
limited otherwise, the terms "installed", "jointed", "connected",
"fixed" and the like are to be construed broadly, e.g., as being
permanently connected, detachably connected, or integral; may be
mechanically, electrically or otherwise in communication with each
other; they may be directly connected or indirectly connected
through intervening media, or may be connected through the use of
two elements or the interaction of two elements. The specific
meanings of the above terms in the present invention can be
understood according to specific situations by those of ordinary
skill in the art.
Example 1
[0144] Referring to FIGS. 2A-2D, an embodiment of the present
invention provides a sweeping robot. The sweeping robot is provided
with a sweeping mechanism, the sweeping mechanism comprises an air
duct suction opening 12 formed in the bottom 11 of the shell 1 and
at least one sweeping brush 15 which is arranged on the bottom 11
of the shell 1 and is separated from the air duct suction opening
12 and independently arranged, and each of the at least one
sweeping brush 15 moves back and forth when driven to sweep and
raise dust and paper scraps on the ground.
[0145] The sweeping mechanism further comprises a dust collection
box 2 and a draught fan 3 which are arranged in the shell 1, an
inlet 20 of the dust collection box 2 is communicated with the air
duct suction opening 12 in the bottom of the shell 1, and an outlet
(not shown) of the dust collection box 2 is communicated with an
inlet 30 of the draught fan 3.
[0146] The draught fan 3 comprises a first draught fan 31 and a
second draught fan 32, and the first draught fan 31 and the second
draught fan 32 are communicated with the dust collection box 2
through an air suction guide component 33. The air suction guide
component 33 comprises a first air suction channel 331 and a second
air suction channel 332 which are independent of each other, the
first draught fan 31 is communicated with the first air suction
channel 331, and the second draught fan 32 is communicated with the
second air suction channel 332. The air suction guide component 33
is provided with a partition plate 333 at the position, close to an
inlet 30 of the draught fan 3, of the first air suction channel 331
and the second air suction channel 332, and therefore the first air
suction channel 331 and the second air suction channel 332 are
separated to be independent of each other.
[0147] The bottom 11 of the shell 1 is in a disc-like shape with
the front end edge being a straight line section. Preferably, the
air duct suction opening 12 is formed in the central axis of the
bottom 11 of the shell 1, and the distance between the air duct
suction opening 12 and the front end 111 of the bottom 11 of the
shell 1 is smaller than the distance between the air duct suction
opening 12 and the rear end 112 of the bottom 11 of the shell 1. It
will be appreciated that the air duct suction opening 12 may be
shaped as a circle 12a, an ellipse 12b, a triangle 12c, a
quadrilateral 12d, or an irregular polygon 12e, as shown in FIG.
2E; or the air duct suction opening 12 is shaped as an approximate
ellipse 12f with a rectangular middle part and semicircular sides,
and the like.
[0148] Each of the at least one sweeping brush 15 is preferably
arranged near the air duct suction opening 12, and preferably, each
of the at least one sweeping brush 15 is driven to move back and
forth integrally close to and far away from the air duct suction
opening 12. More preferably, each of the at least one sweeping
brush 15 is driven to move back and forth integrally between the
air duct suction opening 12 and the edge of the bottom 11 of the
shell 1.
[0149] Therefore, according to the embodiment, at least one
sweeping brush 15 which is separated from the air duct suction
opening 12 and independently arranged is arranged at the bottom 11
of the shell 1 so as to sweep raised dust, and the dust collection
efficiency can be more effective. In addition, the sweeping brush
15 which is separated from the air duct suction opening 12 and
independently arranged is adopted to replace a rolling main brush
arranged in the air suction opening, and the problems that winding
caused by the rolling main brush blocks the dust suction opening,
and the sweeping effect of the dust suction box is affected can be
effectively avoided.
[0150] The sweeping robot disclosed by the embodiment of the
invention comprises a sweeping mechanism, the sweeping mechanism is
provided with a sweeping brush at the bottom of a shell 1, under
the suction effect of the draught fan 3 in the shell 1, dust and
paper scraps which are swept and raised by at least one sweeping
brush arranged on the surface of the bottom of the shell are sucked
into the air duct suction opening 12, and the dust enters the dust
collecting box through the air duct suction opening 12, so that the
ground cleaning function is completed.
[0151] In the following, alternative specific structures and
corresponding working principles of the sweeping mechanism of the
embodiment of the invention will be described in detail through
pluralities of embodiments.
Example 2
[0152] Referring to FIGS. 3A-3D, a sweeping mechanism provided by
the embodiment of the invention comprises an air duct suction
opening 12 formed in a bottom 11 of a shell 1 and a sweeping brush
15 independently arranged at the bottom 11 of the shell 1 and
separated from the air duct suction opening 12, and the sweeping
brush 15 is driven to move back and forth to sweep and raise dust
and scraps of paper on the ground.
[0153] Specifically, the sweeping brush 15 is arranged between the
front end 111 of the bottom 11 of the shell 1 and the air duct
suction opening 12. The sweeping brush 15 is driven to move back
and forth and mainly comprises the following two implementation
modes:
[0154] the first mode is as follows: the sweeping brush 15 is
driven to move back and forth between the left edge and the right
edge of the bottom 11 of the shell 1, and the movement direction is
shown as the arrow direction A1 shown in FIG. 3A or the arrow
direction B1 shown in the FIG. 3E;
[0155] and the second mode is as follows: the sweeping brush 15 is
driven to move back and forth between the air duct suction opening
12 and the edge of the bottom 11 of the shell 1, and the moving
direction is shown as the arrow direction A2 shown in FIG. 3F or
the arrow direction B2 shown in FIG. 3G.
[0156] In particular embodiments, the sweeping brush 15 can be
driven to move back and forth in the direction of its own axis
(direction of each of the arrows A1 and A2 in FIGS. 3A and 3F), or
in a direction perpendicular to its own axis (direction of each of
the arrows B1 and B2 in FIGS. 3E and 3G)
[0157] Referring to FIGS. 4A-4F, a preferred configuration of the
sweeping brush 15 employed in the present embodiment is shown. The
sweeping brush 15 provided in this embodiment is able to move back
and forth in its own axial direction when driven. The sweeping
brush comprises a fixed seat 91 arranged at the bottom 11 of the
shell 1, a movable support 92 arranged on the fixed seat 91 and
bristles 93 arranged on the movable support 92, and the movable
support 92 is driven by a driving component 94 to move relative to
the fixed seat 91. Specifically, the movable support 92 is driven
by a driving component to move back and forth relative to the fixed
seat 91 in the axis direction (shown in the arrow A direction in
FIG. 4E) of the movable support 92.
[0158] The fixed seat 91 comprises a limiting body 911, and a
containing groove 910 is formed in the limiting body 911. The
movable support 92 comprises a movable body 921 for arranging
bristles 93, a driven member 922 is arranged at the bottom of the
movable body 921, and the driven member 922 extends out of the
containing groove 910 and drives the movable body 921 to move back
and forth in the containing groove 910 under the action of the
driving component 94. The driving component 94 comprises a motor
941 and a coupling member 942 driven by the motor 941, and the
coupling member 942 is connected with the driven member 922 in a
matched manner. The motor 941 is preferably a brush direct current
motor or a brushless direct current motor, and the coupling member
942 is an eccentric shaft driven by the brush direct current motor
or the brushless direct current motor.
[0159] Specifically, the movable body 921 reciprocates in the
length direction in the containing groove 910. The length of the
movable body 921 is smaller than that of the containing groove 910.
The movable body 921 further comprises an upper portion 9211 for
arranging the bristles 93 and a lower portion 9212 connected with
the upper portion 9211, and the driven member 922 is arranged on
the bottom surface of the lower portion 9212. The longitudinal
section of the movable body 921 in the width direction of the
movable body 921 is in a convex shape. The width of the upper
portion 9211 is smaller than that of the containing groove 910 so
that the upper portion 9211 can be contained in the containing
groove 910, and the width of the lower portion 9212 is larger than
that of the containing groove 910.
[0160] Preferably, the fixed seat 91 of the embodiment further
comprises a bottom case 913, and the limiting body 911 is fixed
into the bottom case 913 through a connecting piece (e.g., a screw
or the like) so as to prevent the movable body 921 contained in the
containing groove 910 from being separated from the limiting body
911. An opening 9130 is formed in the bottom of the bottom case 913
to extend out of the driven member 922. However, it can be
understood that the sweeping brush of the present embodiment may
not be provided with a bottom case 913, as shown in FIG. 4F, and
the implementation effect thereof is not affected.
[0161] In specific implementation, the coupling member (eccentric
shaft) 942 is driven by the motor to rotate, and in the rotating
process of the coupling member (eccentric shaft) 942, the coupling
member (eccentric shaft) 942 is connected with the driven member
922 at the bottom of the movable body 921 in a matched manner to
drive the driven member 922 to move, so that the movable body 921
is driven to do reciprocating motion in the length direction in the
containing groove 910.
[0162] Preferably, in the present embodiment, the bristles 93 are
mainly formed by arranging pluralities of bristle bundles. In
addition, the movable support 92 provided on each fixed seat 91
include pluralities; and/or the bristles 93 provided on each
movable support 92 include pluralities of rows. Each row of the
bristles 93 extends out of the surface of the bottom 11 of the
shell 1 to abut against the ground. The upper surface of each row
of the bristles 93 is in the same horizontal plane to be flush with
the ground.
[0163] Preferably, in the present embodiment, the movable support
92 is also driven by a driving component 94 (or other driving
means) to move relative to the fixed seat as follows:
[0164] swinging back and forth around the axis of the movable
support 92 in the length direction, and the swinging range is 120
degrees; or
[0165] rotating 360 degrees around the axis of the movable support
92 in the length direction.
[0166] In the above-described modification, the sweeping brush is
arranged to move back and forth in the length direction of the
sweeping brush and can also conduct 120-degree back-and-forth
swinging or 360-degree rotating self-motion around the axis in the
length direction of the sweeping brush, the sweeping effect can be
further improved, and therefore the dust collection effect and
efficiency are improved.
[0167] Preferably, in the present embodiment, the movable support
92 can also be driven by the driving component 94 to do lifting
motion far away from or close to the horizontal plane where the
fixed seat is located. According to the improved scheme, the
sweeping brush is arranged to be a floating brush, so that the
sweeping brush is suitable for uneven grounds, self-adaptive
lifting can be carried out according to concave-convex conditions
of different grounds, the sweeping brush is tightly attached to the
ground to sweep the grounds, and the sweeping effect is
guaranteed.
[0168] Referring to FIGS. 5A-5F, another preferred structure of the
sweeping brush 15 employed in the present embodiment is shown. The
sweeping brush 15 provided in the present embodiments driven to
move back and forth in a direction perpendicular to its own axis.
The sweeping brush 15 comprises a fixed seat 91 arranged at the
bottom 11 of the shell 1, a movable support 92 arranged on the
fixed seat 91 and bristles 93 arranged on the movable support 92,
and the movable support 92 is driven by a driving component 94 to
move relative to the fixed seat 91. Specifically, the movable
support 92 is driven by the driving component 94 to move back and
forth relative to the fixed seat 91 in the axis direction (shown in
the arrow B direction in FIG. 5A) of the movable support 92.
[0169] The fixed seat 91 comprises a limiting body 911, and a
containing groove 910 is formed in the limiting body 911. The
movable support 92 comprises a movable body 921 for containing
bristles 93, a driven member 922 is arranged at the bottom of the
movable body 921, and the driven member 922 extends out of the
containing groove 910 and drives the movable body 921 to move back
and forth in the containing groove 910 under the action of the
driving component 94. The driving component 94 comprises a motor
941 and a coupling member 942 driven by the motor 941, and the
coupling member 942 is connected with the driven member 922 in a
matched manner. The motor 941 is preferably a brush direct current
motor or a brushless direct current motor, and the coupling member
942 is an eccentric shaft driven by the brush direct current motor
or the brushless direct current motor.
[0170] Specifically, the movable body 921 reciprocates in the width
direction in the containing groove 910. The width of the movable
body 921 is smaller than that of the containing groove 910. The
movable body 921 comprises an upper portion 9211 for arranging the
bristles 93 and a lower portion 9212 connected with the upper
portion 9211, and the driven member 922 is arranged on the bottom
surface of the lower portion 9212. The longitudinal section of the
movable body 921 in the length direction of the movable body 921 is
in a convex shape. The length of the upper portion 9211 is smaller
than that of the containing groove 910 so that the upper portion
9211 can be contained in the containing groove 910, and the length
of the lower portion 9212 is larger than that of the containing
groove 910.
[0171] Preferably, the fixed seat 91 of the present embodiment
further comprises a bottom case 913, and the limiting body 911 is
fixed into the bottom case 913 through a connecting piece (e.g., a
screw or the like) so as to prevent the movable body 921 contained
in the containing groove 910 from being separated from the limiting
body 911. An opening 9130 is formed in the bottom of the bottom
case 913 to extend out of the driven member 922. However, it can be
understood that the sweeping brush of the present embodiment may
not be provided with a bottom case 913, as shown in FIG. 15F, and
the implementation effect thereof is not affected.
[0172] In specific implementation, the coupling member (eccentric
shaft) 942 is driven by the motor to rotate, and in the rotating
process, the coupling member (eccentric shaft) 942 is connected
with the driven member 922 at the bottom of the movable body 921 in
a matched manner to drive the driven member 922 to move, so that
the movable body 921 is driven to do reciprocating motion in the
width direction in the containing groove 910.
[0173] Therefore, according to the embodiment of the present
invention, the sweeping brush 15 arranged at the bottom of the
shell is arranged to integrally move back and forth for sweeping
when being driven, so that dust raised by sweeping is favorably
sucked into the air duct suction opening in the moving process, and
the sweeping effect and the dust collection effect are improved.
Moreover, the sweeping brush is preferably arranged to integrally
move back and forth between the air duct suction opening and the
edge of the bottom of the shell when being driven, and the sweeping
brush is used for sweeping dust at the center and the edge of the
sweeper in the moving process. That is to say, the sweeping brush
provided by the embodiment of the invention can serve as a main
brush and a side brush in the moving process at the same time, the
sweeping range of the sweeping robot can be widened, the cost can
be reduced, the main brush, the side brush and corresponding
drivers do not need to be arranged respectively, and the cost is
lower.
[0174] It can be understood that the bristles arranged on the
sweeping brush 15 shown in the embodiment are linear as a whole,
but the bristles can also be arranged to be wavy (as shown in FIG.
6A) or arc-shaped (as shown in FIG. 6B) as a whole, and the effect
of the embodiment of the invention can also be achieved.
[0175] Preferably, referring back to FIG. 3C, the rear edge 122 of
the air duct suction opening 12 is provided with a baffle 120
extending upwards, and the baffle 120 is arranged on the rear edge
122 of the air duct suction opening 12 and can block raised dust
and paper scraps, and the situation that the dust and the paper
scraps diffuse to the position behind the air duct suction opening
12 and cannot be sucked into the air duct suction opening 12 is
avoided.
[0176] Preferably, referring back to FIGS. 3B-3D, an inclined guide
surface 14 is arranged at the front end of the bottom of the shell,
and the front edge 121 or the rear edge 122 of the air duct suction
opening 12 abuts the rear end of the inclined guide surface 14. The
included angle theta between the inclined guide surface and the
horizontal plane is more than 0 degree and less than 45 degrees.
Preferably, the included angle theta between the inclined guide
surface 14 and the horizontal plane is more than 5 degrees and less
than 30 degrees. More preferably, the included angle theta between
the inclined guide surface and the horizontal plane is more than 10
degrees and less than 20 degrees. The groove 13 is arranged on the
inclined guide surface 14.
[0177] According to the embodiment, the inclined guide surface 14
is arranged between the air duct suction opening 12 and the front
end edge of the bottom 11 of the shell 1, the inclined guide
surface 14 can achieve the obstacle crossing function and is
beneficial to dust guide, and the groove 13 arranged on the
inclined guide surface 14 is matched to further guide and suck dust
in front of the sweeping robot into the air duct suction opening
12, so that the dust suction efficiency is improved.
[0178] In a preferred embodiment, as shown in FIG. 7A, the inclined
guide surface 14 itself is a curved surface, and the included angle
theta between the inclined guide surface 14 and the horizontal
plane is gradually reduced from the front end to the rear end of
the inclined guide surface 14. According to the embodiment, the
inclined guide surface 14 between the air duct suction opening and
the edge of the front end of the bottom of the shell is arranged as
a curved surface, and the included angle theta between the inclined
guide surface and the horizontal plane is gradually reduced from
the front end to the rear end of the inclined guide surface 14.
Thus, the included angle theta between the inclined guide surface
close to the edge of the front end of the bottom of the shell and
the horizontal plane is larger, the obstacle crossing function is
better improved, the included angle theta between the inclined
guide face close to the air duct suction opening and the horizontal
plane is smaller, the closer the air duct suction opening is, the
larger the suction force is, and dust suction is better
facilitated.
[0179] In another preferred embodiment, as shown in FIG. 7B, the
inclined guide surface 14 comprises a first inclined guide surface
141 and a second inclined guide surface 142 which are connected in
a front-to-back transition manner, and the included angle theta 1
between the first inclined guide surface 141 and the horizontal
plane is larger than the included angle theta 2 between the second
inclined guide surface 142 and the horizontal plane. According to
the embodiment, the inclined guide surface 14 between the air duct
suction opening 12 and the front end edge of the bottom 11 of the
shell 1 is set to be the first inclined guide surface 141 and the
second inclined guide surface 142 which are connected in a
front-to-back transition manner, and the included angle theta 1
between the first inclined guide surface 141 and the horizontal
plane is larger than the included angle theta 2 between the second
inclined guide surface 142 and the horizontal plane. Thus, the
included angle between the first inclined guide surface 141 and the
horizontal plane is larger, which is beneficial to improving the
obstacle crossing function, and the included angle between the
second inclined guide surface 142 close to the air duct suction
opening and the horizontal plane is smaller, so that the suction
force near the air duct suction opening is larger, which is
beneficial to sucking dust.
Example 3
[0180] Referring to FIGS. 8A-8C, a sweeping mechanism provided in
the embodiment of the present invention comprises an air duct
suction opening 12 formed in the bottom 11 of the shell 1, and a
first sweeping brush 151 and a second sweeping brush 152 arranged
at the bottom 11 of the shell land separately and independently
arranged from the air duct suction opening 12, the first sweeping
brush 151 and the second sweeping brush 152 are driven to move back
and forth so as to sweep and raise dust and paper scraps on the
ground. Specifically, the first sweeping brush 151 and the second
sweeping brush 152 are arranged at the front ends of two sides of
the air duct suction opening 12 respectively and integrally form an
inverted splayed shape.
[0181] In this embodiment, the first and second brushes 151, 152
move back and forth in their own axial directions (arrow A3 and A4
directions in FIG. 8A), respectively. Preferably, the first
sweeping brush 151 and the second sweeping brush 152 are driven to
move back and forth integrally between the air duct suction opening
and the edge of the bottom of the shell and sweep dust in the
center and the edge of the sweeper in the moving process, that is
to say, the first sweeping brush 151 and the second sweeping brush
152 provided by the embodiment of the invention can serve as a main
brush and a side brush in the moving process at the same time, the
sweeping range of the sweeping robot can be widened, the cost can
be reduced, the main brush, the side brush and corresponding
drivers do not need to be arranged respectively, and the cost is
lower. The specific configuration of the first and second sweeping
brushes 151, 152 may be referred to FIGS. 4A-4F.
[0182] In addition, the sweeping mechanism of the embodiment can
also be provided with an inclined guide surface 14, and the first
sweeping brush 151 and the second sweeping brush 152 are both
arranged on the inclined guide surface 14. The specific structure
and principle of operation of this inclined guide surface 14 can be
referred to associated description of Example 2.
[0183] It will be appreciated that the first sweeping brush 151 and
the second sweeping brush 152 arranged in the present embodiment
are driven to move back and forth in the directions perpendicular
to the axes of the first sweeping brush 151 and the second sweeping
brush 152 respectively (the directions of arrows B3 and B4 in FIGS.
8D and 8E), the specific configuration of the first and second
sweeping brushes 151, 152 may be with reference to FIGS. 5A-5F.
Example 4
[0184] Referring to FIGS. 9A-9D, a sweeping mechanism provided by
the embodiment of the invention comprises an air duct suction
opening 12 formed in the bottom 11 of a shell 1, a first sweeping
brush 151 and a second sweeping brush 152, and the first sweeping
brush 151 and the second sweeping brush 152 are independently
arranged at the bottom 11 of the shell 1 and separated from the air
duct suction opening 12. The first sweeping brush 151 and the
second sweeping brush 152 are driven to move back and forth so as
to sweep and raise dust and paper scraps on the ground.
[0185] The sweeping mechanism provided by the embodiment is
substantially the same as the sweeping mechanism provided in
Example 3, except that the first sweeping brush 151 and the second
sweeping brush 152 provided in this embodiment are respectively
arranged on the left side and the right side of the air duct
suction opening 12 in parallel, and the first sweeping brush 151
and the second sweeping brush 152 adopt any of the following
structures and movement modes:
[0186] (1) the first sweeping brush 151 and the second sweeping
brush 152 are driven to move back and forth between the front end
and the rear end of the bottom 11 of the shell 1, and the first
sweeping brush 151 and the second sweeping brush 152 are driven to
move in the directions along their own axes, and the directions of
movement of the first and second sweeping brushes 151 and 152 are
shown by arrows C1 and C2 in FIG. 9A;
[0187] (2) the first sweeping brush 151 and the second sweeping
brush 152 are driven to move back and forth between the front end
and the rear end of the bottom 11 of the shell 1, and the first
sweeping brush 151 and the second sweeping brush 152 are driven to
move in the directions perpendicular to their own axes, and the
directions of movement of the first sweeping brush 151 and the
second sweeping brush 152 are shown by arrows C3 and C4 in FIG.
9B;
[0188] (3) the first sweeping brush 151 and the second sweeping
brush 152 are driven to move back and forth between the air duct
suction opening 12 and the edge of the bottom 11 of the shell 1,
and the first sweeping brush 151 and the second sweeping brush 152
are driven to move in the directions perpendicular to their own
axes, and the directions of movement of the first sweeping brush
151 and the second sweeping brush 152 are shown by arrows C5 and C6
in FIG. 9C;
[0189] And (4) the first sweeping brush 151 and the second sweeping
brush 152 are driven to move back and forth between the air duct
suction opening 12 and the edge of the bottom 11 of the shell 1,
and the first sweeping brush 151 and the second sweeping brush 152
are driven to move in the directions along their own axes, and the
directions of movement of the first and second sweeping brushes 151
and 152 are shown by arrows C7 and C8 in FIG. 9D;
[0190] It can be understood that no matter which kind of structure
and movement mode are adopted to the first sweeping brush 151 and
the second sweeping brush 152 of the sweeping mechanism provided by
the embodiment, the first sweeping brush 151 and the second
sweeping brush 152 can be matched to sweep and raise dust and paper
scraps in the moving process so as to effectively suck the dust and
the paper scraps into the air duct suction opening, and the dust
collection efficiency and effect can be improved.
Example 5
[0191] Referring to FIGS. 10A-10C, a sweeping mechanism provided by
the embodiment of the invention comprises an air duct suction
opening 12 formed in a bottom 11 of a shell 1 and pluralities of
sweeping brushes 151, 152, 153 independently arranged at the bottom
11 of the shell 1 and separated from the air duct suction opening
12, the sweeping brushes 151, 152 and 153 are arranged between the
air duct suction opening 12 and the front end of the surface of the
bottom 11 of the shell 1 in a radial mode and move back and forth
when driven so as to sweep and raise dust and paper scraps on the
ground.
[0192] The pluralities of sweeping brushes 151, 152, 153 can adopt
any of the following structures and movement modes:
[0193] (1) the pluralities of sweeping brushes 151, 152, 153 are
driven to move back and forth between the air duct suction opening
12 and the edge of the bottom 11 of the shell 1, and the
pluralities of sweeping brushes 151, 152, 153 are driven to move in
the directions along their own axes, as shown in FIG. 10A;
[0194] (2) the pluralities of sweeping brushes 151, 152, 153 are
driven to move back and forth between the air duct suction opening
12 and the edge of the bottom 11 of the shell 1, and the
pluralities of sweeping brushes 151, 152, 153 are driven to move in
the directions perpendicular to their own axes, as shown in FIG.
10B; and
[0195] (3) the pluralities of sweeping brushes 151, 152, 153 are
driven to move back and forth between the left and right ends of
the bottom 11 of the shell 1, and the pluralities of sweeping
brushes 151, 152, 153 are driven to move in the directions
perpendicular to their own axes, as shown in FIG. 10C.
[0196] It will be appreciated that the present embodiment shows a
structure of the sweeping mechanism employing three sweeping
brushes, four, five, six or more sweeping brushes may also be
provided in order to further improve the sweeping and dust
collection effect, and the pluralities of sweeping brushes are
radially arranged at the front end of the surface of the bottom 11
of the shell 1 and close to the air duct suction opening.
Example 6
[0197] Referring to FIGS. 11A-11D, a sweeping mechanism provided in
an embodiment of the present invention is substantially the same as
that provided in Example 5, and comprises an air duct suction
opening 12 formed in a bottom 11 of a shell 1 and pluralities of
sweeping brushes 151, 152, 153 independently arranged at the bottom
11 of the shell 1 and separated from the air duct suction opening
12, except that the pluralities of sweeping brushes 151, 152 and
153 are arranged between the air duct suction opening 12 and the
front end of the surface of the bottom 11 of the shell 1 in
parallel and move back and forth when driven so as to sweep and
raise dust and paper scraps on the ground.
[0198] The pluralities of sweeping brushes 151, 152, 153 can adopt
any of the following structures and movement modes:
[0199] (1) the pluralities of sweeping brushes 151, 152, 153 are
driven to move back and forth between the air duct suction opening
12 and the edge of the bottom 11 of the shell 1, and the
pluralities of sweeping brushes 151, 152, 153 are driven to move in
the directions along their own axes, as shown in FIG. 11 A;
[0200] (2) the pluralities of sweeping brushes 151, 152, 153 are
driven to move back and forth between the air duct suction opening
12 and the edge of the bottom 11 of the shell 1, and the
pluralities of sweeping brushes 151, 152, 153 are driven to move in
the directions perpendicular to their own axes, as shown in FIG.
11B;
[0201] (3) the pluralities of sweeping brushes 151, 152, 153 are
driven to move back and forth between the left and right ends of
the bottom 11 of the shell 1, and the pluralities of sweeping
brushes 151, 152, 153 are driven to move in the directions along
their own axes, as shown in FIG. 11C; and
[0202] (4) the pluralities of sweeping brushes 151, 152, 153 are
driven to move back and forth between the left and right ends of
the bottom 11 of the shell 1, and the pluralities of sweeping
brushes 151, 152, 153 are driven to move in the directions
perpendicular to their own axes, as shown in FIG. 11D.
[0203] It will be appreciated that the present embodiment shows a
structure of the sweeping mechanism employing three sweeping
brushes, four, five, six or more sweeping brushes may also be
provided in order to further improve the sweeping and dust
collection effect, and the pluralities of sweeping brushes are
arranged parallel to each other at the front end of the surface of
the bottom 11 of the shell 1.
Example 7
[0204] Referring to FIGS. 12A-12B, a sweeping mechanism provided in
an embodiment of the present invention is substantially the same as
that provided in Example 3, except that the first sweeping brush
151 and the second sweeping brush 152 which are independently
arranged on the bottom 11 of the shell 1 and are separated from the
air duct suction opening 12 respectively comprise a sweeping
sub-brush 151a and a sweeping sub-brush 151b which are arranged in
parallel, and a sweeping sub-brush 152a and a sweeping sub-brush
152b which are arranged in parallel.
[0205] The sweeping sub-brush 151a, the sweeping sub-brush 151b,
the sweeping sub-brush 152a and the sweeping sub-brush 152b can be
arranged to move back and forth in the directions along their own
axes or move back and forth in the directions perpendicular to
their own axes. Reference may be made to the foregoing related
embodiments for specific structures and principles.
[0206] According to the embodiment, each of the front ends of the
two sides of the air duct suction opening 12 is provided at least
two sweeping sub-brushes in parallel for sweeping and raising dust
in the moving process so as to suck the dust into the air duct
suction opening, so that the cleaning and dust collection
efficiency and effect can be further improved.
[0207] It can be understood that the number of the sweeping
sub-brushes arranged at each of the front ends of the two sides of
the air duct suction opening 12 in parallel can also be three or
more, and the technical effect needing to be achieved by the
embodiment of the invention can also be achieved.
[0208] According to the embodiment, the sweeping sub-brushes
arranged at the front ends of the two sides of the air duct suction
opening 12 in parallel and the air duct suction opening 12 are
arranged to integrally form an inverted-splayed shape, but it can
be understood that the sweeping sub-brushes and the air duct
suction opening 12 can also be arranged to integrally form a linear
shape or a splayed shape, and the effect to be achieved by the
embodiment of the invention can also be achieved.
Example 8
[0209] Referring to FIGS. 13A-13B, a sweeping mechanism provided in
an embodiment of the present invention is substantially the same as
that provided in Example 4, except that the first sweeping brush
151 and the second sweeping brush 152 which are independently
arranged on the bottom 11 of the shell 1 and are separated from the
air duct suction opening 12 respectively comprise a sweeping
sub-brush 151a and a sweeping sub-brush 151b which are arranged in
parallel, and a sweeping sub-brush 152a and a sweeping sub-brush
152b which are arranged in parallel.
[0210] The sweeping sub-brush 151a, the sweeping sub-brush 151b,
the sweeping sub-brush 152a and the sweeping sub-brush 152b can be
arranged to move back and forth in the directions along their own
axes or move back and forth in the directions perpendicular to
their own axes. Reference may be made to the foregoing related
embodiments for specific structures and principles.
[0211] According to the embodiment, each of the front ends of the
two sides of the air duct suction opening 12 is provided at least
two sweeping sub-brushes in parallel for sweeping and raising dust
in the moving process so as to suck the dust into the air duct
suction opening, so that the cleaning and dust collection
efficiency and effect can be further improved.
[0212] It can be understood that the number of the sweeping
sub-brushes arranged at each of the front ends of the two sides of
the air duct suction opening 12 in parallel can also be three or
more, and the technical effect needing to be achieved by the
embodiment of the invention can also be achieved.
[0213] It can be understood that the at least two sweeping
sub-brushes arranged at each of the two sides of the air duct
suction opening 12 can also be in a radial state instead of a
parallel state, and the technical effect needing to be achieved by
the embodiment of the invention can also be achieved.
Example 9
[0214] The embodiment of the invention provides a sweeping
mechanism which is on the basis of any one of the previous
embodiments, at least one groove is formed in the surface of a
bottom 11 of the shell 1, and each groove is communicated with the
air duct suction opening 12 to form a dust guide air duct for
guiding dust into the air duct suction opening 12. Each groove is
shaped to match the shape of the air duct suction opening 12 for
connecting. Specifically, one end of each groove is connected with
the air duct suction opening 12, and the other end of each groove
is in smooth transition connection with the edge of the bottom 11
of the shell 1. Each groove and the air duct suction opening 12 can
be integrally formed.
[0215] Preferably, each groove is matched with the sweeping brush
on the bottom 11 of the shell 1 so that raised dust can be guided
into the air duct suction opening 12 through the groove.
[0216] Therefore, according to the sweeping mechanism disclosed by
the embodiment of the invention, at least one groove is formed in
the surface of the bottom of the shell, and each groove is
communicated with the air duct suction opening to form the dust
guide air duct for guiding dust into the air duct suction opening,
so that the dust on the ground can be conveniently guided and
sucked into the air duct suction opening, and the dust suction
efficiency is improved. The groove matched with the sweeping brush
is formed in the bottom of the shell, so that dust raised by the
sweeping brush is further guided into the air duct suction opening
through the groove, and the dust suction efficiency is
improved.
[0217] Hereinafter, the mating arrangement, specific structure, and
principle of operation of each of the at least one sweeping brush
with the groove that may be employed will be described in detail by
a number of embodiments.
Example 10
[0218] Referring to FIG. 14, an embodiment of the present invention
provides a sweeping mechanism which is on the basis of Example 2,
at least one groove is formed in the surface of a bottom 11 of the
shell 1.
[0219] Specifically, a groove 13 is formed between the air duct
suction opening 12 and the edge of the front end of the bottom 11
of the shell 1, the groove 13 is communicated with the air duct
suction opening 12 to form a dust guide air duct for guiding dust
into the air duct suction opening 12, and the groove 13 and the
sweeping brush 15 are arranged in parallel.
[0220] Specifically, the front end 131 of the groove 13 is in
smooth transition connection with the edge of the front end of the
bottom 11 of the shell 1, the rear end 132 of the groove 13 is
connected with the front edge 121 of the air duct suction opening
12, the depth of the groove 13 is gradually increased from the
front end 131 to the rear end 132 of the groove 13, and the width
D1 of the rear end 132 of the groove 13 is smaller than or equal to
the length of the front edge 121 of the air duct suction opening
12. This facilitates the introduction of dust into the duct suction
12. Besides, a baffle 120 extending upwards is arranged on the rear
edge 122 of the air duct suction opening 12, the baffle 120 is
arranged on the rear edge 122 of the air duct suction opening 12,
raised dust and paper scraps can be blocked, and the situation that
the dust and the paper scraps diffuse to the position behind the
air duct suction opening 12 and cannot be sucked into the air duct
suction opening 12 is avoided.
[0221] Therefore, according to the embodiment, the groove matched
with the sweeping brush is formed in the bottom of the shell, so
that dust raised by the sweeping brush is further guided into the
air duct suction opening through the groove, and the dust suction
efficiency is improved.
[0222] It can be understood that the sweeping brush 15 can adopt
any structure and movement mode in Example 2, and the
implementation effect of the embodiment of the invention can also
be achieved.
Example 11
[0223] Referring to FIGS. 15A-15F, an embodiment of the present
invention provides a sweeping mechanism that, on the basis of
Example 3, is provided with at least one groove 13 in communication
with the air duct suction opening 12 in the surface of the bottom
11 of the shell 1.
[0224] Specifically, a first groove 133 and a second groove 134 are
formed in the two sides of the air duct suction opening 12, and the
first groove 133 and the second groove 133 communicate with the air
duct suction opening 12 to form a dust guide air duct for guiding
dust into the air duct suction opening 12.
[0225] In addition, the first groove 133 and the second groove 134
are arranged in a manner of being matched with the first sweeping
brush 151 and the second sweeping brush 152, so that the first
sweeping brush 151 is arranged in front of the first groove 133 and
is parallel to the first groove 133, and the second sweeping brush
152 is arranged in front of the second groove 134 and is parallel
to the second groove 134.
[0226] Specifically, one end 1331 of the first groove 133 is
connected with the air duct suction opening 12, and the other end
1332 of the first groove 133 is in smooth transition connection
with the edge of the bottom 11 of the shell 1. One end 1341 of the
second groove 134 is connected with the air duct suction opening
12, and the other end 1342 of the second groove 134 is in smooth
transition connection with the edge of the bottom 11 of the shell
1. The air duct suction opening 12 is rectangular, the one end 1331
of the first groove 133 and the one end 1341 of the second groove
134 are connected with the left short edge and the right short edge
of the air duct suction opening respectively, and the width of the
one end 1331 of the first groove 133 and the width of the one end
1341 of the second groove 134 are equal to the length of the left
short edge and the length of the right short edge of the air duct
suction opening 12 respectively. The depth of the first groove 133
is gradually increased from the one end 1332 to the other end 1331
of the first groove 133, the depth of the second groove 134 is
gradually increased from the one end 1342 to the other end 1341 of
the second groove 134, such a design facilitates the direction of
dust and makes it easier for dust to be drawn into the air duct
suction opening 12 via the first groove 133 and the second groove
134. Preferably, the first groove 133 and the second groove 134 are
integrally formed in an inverted splayed shape, that is, the one
end 1331 of the first groove 133 and the one end 1341 the second
groove 134 are connected with the air duct suction opening in the
middle front part of the bottom of the shell, and the other end
1332 of the first groove 133 and the other end 1341 of the second
groove 134 are in smooth transition connection with the edges of
the left and right corners of the bottom of the shell
respectively.
[0227] In addition, the dust collection guide structure of the
present embodiment may also be provided with an inclined guide
surface 14, and the front or rear edges of the first and second
grooves 133, 134 abut the rear end of the inclined guide surface
14. The specific structure and principle of operation of the
inclined guide surface 14 can be referred to the associated
description of Example 2.
[0228] It will be appreciated that when the inclined guide surface
14 of the present embodiment employs the structure of the inclined
guide surface 14 shown in FIG. 4B, the first groove 133 and the
second groove 134 are arranged on the second inclined guide surface
142.
[0229] In addition, the embodiment is further provided with
baffles, the baffles comprise a middle baffle 1201 arranged on the
rear edge 122 of the air duct suction opening 12, a left baffle
1202 connected to the left side of the middle baffle 1201 and a
right baffle 1203 connected to the right side of the middle baffle
1201, and the left baffle 1202 and the right baffle 1203 are
arranged on the rear edge of the first groove 133 and the rear edge
of the second groove 134 respectively. According to the embodiment,
the baffles can block raised dust and paper scraps, and the
situation that the dust and the paper scraps are diffused to the
position behind the air duct suction opening 12 and cannot be
sucked into the fresh air duct suction opening 12 is avoided.
[0230] In addition, as shown in FIG. 16, the present embodiment may
also provides the first groove 133 and the second groove 134
described above on the structure shown in FIG. 8D or 8E of Example
3 to match the first sweeping brush 151 and the second sweeping
brush 152, and the first groove 133 and the second groove 133 are
communicated with the air duct suction opening 12 to form a dust
guide air duct for guiding dust into the air duct suction opening
12.
Example 12
[0231] Referring to FIG. 17, an embodiment of the present invention
provides a sweeping mechanism that, on the basis of Example 3, is
provided with at least one groove 13 in communication with the air
duct suction opening 12 in the surface of the bottom 11 of the
shell 1. Specifically, a first groove 133 and a second groove 134
are formed to be matched with the first sweeping brush 151 and the
second sweeping brush 152, so that the first sweeping brush 151 is
arranged on the first groove 133, and the second sweeping brush 152
is arranged on the second groove 133.
[0232] Reference can be made to Example 11 for the specific
structure and principle of operation of the first and second
grooves 133, 134.
[0233] The first and second sweeping brushes 151, 152 are arranged
to move back and forth in the directions along their own axes, with
reference to Example 2 for specific structure and principle of
operation.
Example 13
[0234] Referring to FIG. 18, the embodiment of the invention
provides a sweeping mechanism which is substantially the same as
that of Example 11, except that the sweeping mechanism provided by
this embodiment further comprises a third groove 135 formed in the
surface of the bottom 11 of the shell 1, the front end of the third
groove 135 is in smooth transition connection with the edge of the
front end of the bottom 11 of the shell 1, and the rear end of the
third groove 135 is connected with the front edge of the air duct
suction opening 12.
[0235] The first sweeping brush 151 and the second sweeping brush
152 are arranged in front of the first groove 133 and the second
groove 134 respectively and arranged on the two sides of the third
groove 135.
[0236] According to the embodiment, three grooves matched with the
first sweeping brush 151 and the second sweeping brush 152 are
formed to guide dust raised from the front end and the two sides of
the air duct suction opening 12 to be sucked into the air duct
suction opening 12, and the dust suction efficiency and effect can
be further improved.
Example 14
[0237] Referring to FIG. 19, the embodiment of the invention
provides a sweeping mechanism, on the basis of Example 5, at least
one groove communicated with the air duct suction opening 12 is
formed in the surface of the bottom 11 of the shell 1.
Specifically, a first groove 133, a second groove 134, a third
groove 135 and a fourth groove 136 are formed in the bottom 11 of
the shell 1 in a matched manner, and the first groove 133, the
second groove 134, the third groove 135 and the fourth groove 136
are integrally arranged at the front end of the surface of the
bottom 11 of the shell 1 in a radial mode and are arranged
alternately with the first sweeping brush 151, the second sweeping
brush 152 and the third sweeping brush 153.
[0238] The specific structure and principle of operation of the
first, second, third, and fourth grooves 133, 134, 135, 136 may be
referred to in Example 11, which is not described in detail
herein.
Example 15
[0239] Referring to FIG. 20, the embodiment of the invention
provides a sweeping mechanism, on the basis of Example 6, at least
one groove communicated with the air duct suction opening 12 is
formed in the surface of the bottom 11 of the shell 1.
Specifically, a first groove 1301 and a second groove 1302 are
arranged in a matched manner, and the first groove 1301 and a
second groove 1302 are arranged between the front end of the
surface of the bottom 11 of the shell 1 and the air duct suction
opening 12 and are arranged in parallel and alternately with the
pluralities of sweeping brushes 151, 152 and 153.
[0240] The specific structure and principle of operation of the
first and second grooves 1301, 1302 may be referred to Example 10,
and will not be described in detail herein.
Example 16
[0241] Referring to FIG. 21, the embodiment of the invention
provides a sweeping mechanism which is substantially the same as
that provided in Example 11, except that the first groove and the
second groove, which are respectively formed in the two sides of
the air duct suction opening 12, of the sweeping mechanism provided
by the embodiment each comprises two sub-grooves. For example, the
first groove comprises a sub-groove 133a and a sub-groove 133b, the
second groove comprises a sub-groove 134a and a sub-groove 134b,
and the sub-groove 133a and the sub-groove 133b are disposed in
parallel, and the sub-groove 134a and the sub-groove 134b are
disposed in parallel.
[0242] In addition, the first sweeping brush 151 is arranged
between the sub-groove 133a and the sub-groove 133b and is parallel
to the sub-groove 133a and the sub-groove 133b. The second sweeping
brush 152 is arranged between the sub-groove 134a and the
sub-groove 134b and is parallel to the sub-groove 134a and the
sub-groove 134b.
[0243] According to the embodiment, two sub-grooves are formed in
each of the two sides of the air duct suction opening 12 in
parallel in the mode of being matched with the sweeping brush and
serve as the dust guide air ducts for guiding raised dust into the
air duct suction opening, and the dust suction efficiency and
effect can be further improved.
[0244] It can be understood that the two sub-grooves formed in each
of the two sides of the air duct suction opening 12 in the
embodiment can also be in a radial state instead of a parallel
state, and the technical effect needing to be achieved by the
embodiment of the invention can also be achieved.
Example 17
[0245] Referring to FIG. 22, the embodiment of the invention
provides a sweeping mechanism that, on the basis of Example 7, is
provided with a sub-groove 133a and a sub-groove 133b which are
arranged in parallel and a sub-groove 134a and a sub-groove 134b
which are arranged in parallel in a matched manner. The sweeping
sub-brush 151a and the sweeping sub-brush 151b are arranged
parallelly in front of the sub-groove 133a and the sub-groove 133b
and are arranged alternately with the sub-groove 133a and the
sub-groove 133b. The sweeping sub-brush 152a and the sweeping
sub-brush 152b are arranged parallelly in front of the sub-groove
134a and the sub-groove 134b and are arranged alternately with the
sub-groove 134a and the sub-groove 134b.
Example 18
[0246] The embodiment of the invention provides a sweeping
mechanism which is on the basis of any embodiment, at least one
corner of the front end of the bottom of the shell is provided with
a side brush, and the side brush is driven by a driving device to
rotate.
[0247] The side brush is arranged so that the bristles of the side
brush do not interfere with the sweeping brush and the like in the
rotating process. Preferably, the side brush is a three-blade type
rotary side brush.
[0248] Therefore, according to the embodiment of the invention, by
arranging the at least one sweeping brush which is separated from
and independently arranged from the air duct suction opening near
the center of the bottom of the shell so as to sweep and raise
dust, and arranging the side brushes which rotate on at least one
corner (preferably the left corner and the right corner) of the
front end of the bottom of the shell, the problem that the sweeping
effect of the dust collection box is affected due to the fact that
the air suction opening is blocked by winding of the rolling main
brush arranged on the air suction opening can be effectively
avoided, dust raised by the side brush can be guided into the air
duct suction opening through the groove, and the dust suction
efficiency is improved, and particularly, the sweeping and cleaning
effects on corners are very ideal.
[0249] In the following, the matching arrangement, the specific
structure and the working principle of the side brush and the
sweeping brush which can be adopted are described in detail through
pluralities of embodiments.
[0250] Referring to FIGS. 23A and 23B, an embodiment of the present
invention provides a sweeping mechanism that, on the basis of
Example 2, provides a side brush on each of at least one corner of
the front end of the bottom 11 of the shell 1, and the side brush
performs a rotational motion when driven by a driving means.
[0251] Specifically, a first side brush 181 is arranged at the
upper left corner of the front end of the bottom 11 of the shell 1,
a second side brush 182 is arranged at the upper right corner of
the front end of the bottom 11 of the shell 1, and the first side
brush 181 and the second side brush 182 are preferably three-blade
type rotary side brushes. In addition, the lengths of bristles of
the first side brush 181 and the second side brush 182 are set so
that the first side brush 181 and the second side brush 182 cannot
interfere with the sweeping brush and the like in the rotating
process.
[0252] Therefore, according to the embodiment of the invention, by
arranging the sweeping brush 15 which is separated from and
independently arranged from the air duct suction opening near the
center of the bottom of the shell so as to sweep and raise dust,
and arranging the first side brush 181 and the second side brush
182 which rotate on the left corner and the right corner of the
front end of the bottom of the shell, the dust at the center and
the edge of the sweeper can be effectively swept to be sucked into
the air duct suction opening 12, the sweeping and cleaning effects
are particularly ideal, and the sweeping efficiency and effect are
effectively improved.
[0253] It can be understood that the sweeping brush 15 can adopt
any structure and movement mode Example 2, and the implementation
effect of the embodiment of the invention can also be achieved.
Example 19
[0254] Referring to FIGS. 24A and 24B, an embodiment of the present
invention provides a sweeping mechanism that, on the basis of
Example 3 or Example 4, provides a side brush on each of the at
least one corner of the front end of the bottom 11 of the shell 1
that rotates when driven by a driving means.
[0255] Specifically, a first side brush 181 is arranged at the
upper left corner of the front end of the bottom 11 of the shell 1,
a second side brush 182 is arranged at the upper right corner of
the front end of the bottom 11 of the shell 1, and the first side
brush 181 and the second side brush 182 are preferably three-blade
type rotary side brushes. In addition, the lengths of the bristles
of the first side brush 181 and the second side brush 182 are set
so that the first side brush 181 and the second side brush 182 do
not interfere with the first sweeping brush 151, the second
sweeping brush 152 and the like in the rotating process.
[0256] Therefore, according to the embodiment of the invention, by
arranging the first sweeping brush 151 and the second sweeping
brush 152 which are separated from and independently arranged from
the air duct suction opening near the center of the bottom of the
shell so as to sweep and raise dust, and arranging the first side
brush 181 and the second side brush 182 which rotate on the left
corner and the right corner of the front end of the bottom of the
shell, the dust at the center and the edge of the sweeper can be
effectively swept to be sucked into the air duct suction opening
12, the sweeping and cleaning effects are particularly ideal, and
the sweeping efficiency and effect are effectively improved.
[0257] It can be understood that the first sweeping brush 151 and
the second sweeping brush 152 can adopt any structure and movement
mode in Example 3 or Example 4, and the implementation effect of
the embodiment of the invention can be achieved as well.
Example 20
[0258] Referring to FIGS. 25A and 25B, an embodiment of the present
invention provides a sweeping mechanism that, on the basis of
Example 5 or Example 6, provides a side brush on each of the at
least one corner of the front end of the bottom 11 of the shell 1
that rotates when driven by a driving means.
[0259] Specifically, a first side brush 181 is arranged at the
upper left corner of the front end of the bottom 11 of the shell 1,
a second side brush 182 is arranged at the upper right corner of
the front end of the bottom 11 of the shell 1, and the first side
brush 181 and the second side brush 182 are preferably three-blade
type rotary side brushes. In addition, the lengths of bristles of
the first side brush 181 and the second side brush 182 are set so
that the first side brush 181 and the second side brush 182 cannot
interfere with the sweeping brushes 151, 152, 153 and the like in
the rotating process.
[0260] Therefore, according to the embodiment of the invention, by
arranging the pluralities of sweeping brushes 151, 152 and 153
which are separated from and independently arranged from the air
duct suction opening near the center of the bottom of the shell so
as to sweep and raise dust, and arranging the first side brush 181
and the second side brush 182 which rotate on the left corner and
the right corner of the front end of the bottom of the shell, the
dust at the center and the edge of the sweeper can be effectively
swept to be sucked into the air duct suction opening 12, the
sweeping and cleaning effects are particularly ideal, and the
sweeping efficiency and effect are effectively improved.
[0261] It will be appreciated that the pluralities of sweeping
brushes 151, 152, 153 may employ any of the structures and modes of
motion of Example 5 or Example 6 to achieve the effects of the
embodiments of the present invention.
Example 21
[0262] Referring to FIGS. 26A and 26B, an embodiment of the present
invention provides a sweeping mechanism that, on the basis of
Example 7 or Example 8, provides a side brush on each of the at
least one corner of the front end of the bottom 11 of the shell 1
that rotates when driven by a drive means.
[0263] Specifically, a first side brush 181 is arranged at the
upper left corner of the front end of the bottom 11 of the shell 1,
a second side brush 182 is arranged at the upper right corner of
the front end of the bottom 11 of the shell 1, and the first side
brush 181 and the second side brush 182 are preferably three-blade
type rotary side brushes. In addition, the lengths of bristles of
the first side brush 181 and the second side brush 182 are set so
that the bristles cannot interfere with the sweeping sub-brush
151a, the sweeping sub-brush 151b, the sweeping sub-brush 152a, the
sweeping sub-brush 152b and the like in the rotating process.
[0264] Therefore, according to the embodiment of the invention, by
arranging the sweeping sub-brush 151a, the sweeping sub-brush 151b,
the sweeping sub-brush 152a and the sweeping sub-brush 152b which
are separated from and independently arranged from the air duct
suction opening near the center of the bottom of the shell so as to
sweep and raise dust, and arranging the first side brush 181 and
the second side brush 182 which rotate on the left corner and the
right corner of the front end of the bottom of the shell, the dust
at the center and the edge of the sweeper can be effectively swept
to be sucked into the air duct suction opening 12, the sweeping and
cleaning effects are particularly ideal, and the sweeping
efficiency and effect are effectively improved.
[0265] It can be understood that the sweeping sub-brush 151a, the
sweeping sub-brush 151b, the sweeping sub-brush 152a and the
sweeping sub-brush 152b can adopt any structure and movement mode
in the Example 7 or 8, and the implementation effect of the
embodiment of the invention can be achieved.
Example 22
[0266] Referring to FIG. 27, an embodiment of the present invention
provides a sweeping mechanism that, on the basis of Example 10,
provides a side brush on each of the at least one corner of the
front end of the bottom 11 of the shell 1 that rotates when driven
by a driving means.
[0267] Specifically, a first side brush 181 is arranged at the
upper left corner of the front end of the bottom 11 of the shell 1,
a second side brush 182 is arranged at the upper right corner of
the front end of the bottom 11 of the shell 1, and the first side
brush 181 and the second side brush 182 are preferably three-blade
type rotary side brushes. In addition, the lengths of bristles of
the first side brush 181 and the second side brush 182 are set so
that the first side brush 181 and the second side brush 182 cannot
interfere with the sweeping brush 15 and the like in the rotating
process.
[0268] Therefore, according to the embodiment of the invention, by
arranging a sweeping brush 15 which is separated from and
independently arranged from the air duct suction opening near the
center of the bottom of the shell and a groove which is matched
with the sweeping brush 15, and arranging the first side brush 181
and the second side brush 182 which rotate on the left corner and
the right corner of the front end of the bottom of the shell, the
dust at the center and the edge of the sweeper can be effectively
swept to be sucked into the air duct suction opening 12, the
sweeping and cleaning effects are particularly ideal, and the
sweeping efficiency and effect are effectively improved.
[0269] It can be understood that the sweeping brush 15 can adopt
any structure and movement mode in Example 10, and the
implementation effect of the embodiment of the invention can also
be achieved.
Example 23
[0270] Referring to FIGS. 28A-28C, an embodiment of the present
invention provides a sweeping mechanism that, on the basis of
Example 11 or 12, provides a side brush on each of the at least one
corner of the front end of the bottom 11 of the shell 1 that
rotates when driven by a driving means.
[0271] Specifically, a first side brush 181 is arranged at the
upper left corner of the front end of the bottom 11 of the shell 1,
a second side brush 182 is arranged at the upper right corner of
the front end of the bottom 11 of the shell 1, and the first side
brush 181 and the second side brush 182 are preferably three-blade
type rotary side brushes. In addition, the lengths of the bristles
of the first side brush 181 and the second side brush 182 are set
so that the first side brush 181 and the second side brush 182 do
not interfere with the first sweeping brush 151, the second
sweeping brush 152 and the like in the moving process.
[0272] Therefore, according to the embodiment of the invention, by
arranging a first sweeping brush 151 and a second sweeping brush
152 which are separated from and independently arranged from the
air duct suction opening near the center of the bottom of the shell
and a first groove 133 and a second groove 134 which are matched
with the first sweeping brush 151 and the second sweeping brush
152, and arranging the first side brush 181 and the second side
brush 182 which rotate on the left corner and the right corner of
the front end of the bottom of the shell, the dust at the center
and the edge of the sweeper can be effectively swept to be sucked
into the air duct suction opening 12, the sweeping and cleaning
effects are particularly ideal, and the sweeping efficiency and
effect are effectively improved.
[0273] It will be appreciated that the first sweeping brush 151 and
the second sweeping brush 152 can adopt the corresponding
structures and modes of motion in Examples 11 or 12, and the
implementation effect of the embodiment of the invention can also
be achieved.
Example 24
[0274] Referring to FIG. 29, an embodiment of the present invention
provides a sweeping mechanism that, on the basis of Example 13,
provides a side brush on each of the at least one corner of the
front end of the housing bottom 11 that rotates when driven by a
driving means.
[0275] Specifically, a first side brush 181 is arranged at the
upper left corner of the front end of the bottom 11 of the shell 1,
a second side brush 182 is arranged at the upper right corner of
the front end of the bottom 11 of the shell 1, and the first side
brush 181 and the second side brush 182 are preferably three-blade
type rotary side brushes. In addition, the lengths of the bristles
of the first side brush 181 and the second side brush 182 are set
so that the first side brush 181 and the second side brush 182 do
not interfere with the first sweeping brush 151, the second
sweeping brush 152 and the like in the rotating process.
[0276] Therefore, according to the embodiment of the invention, by
arranging a first sweeping brush 151 and a second sweeping brush
152 which are separated from and independently arranged from the
air duct suction opening near the center of the bottom of the shell
and a first groove 133, a second groove 134 and a third groove 135
which are matched with the first sweeping brush 151 and the second
sweeping brush 152, and arranging the first side brush 181 and the
second side brush 182 which rotate on the left corner and the right
corner of the front end of the bottom of the shell, the dust at the
center and the edge of the sweeper can be effectively swept to be
sucked into the air duct suction opening 12, the sweeping and
cleaning effects are particularly ideal, and the sweeping
efficiency and effect are effectively improved.
[0277] It can be understood that the first sweeping brush 151 and
the second sweeping brush 152 can adopt the corresponding
structures and movement modes in Example 13, and the implementation
effect of the embodiment of the invention can also be achieved.
Example 25
[0278] Referring to FIGS. 30A and 30B, an embodiment of the present
invention provides a sweeping mechanism that, on the basis of
Example 14 or Example 15, provides a side brush on each of the at
least one corner of the front end of the bottom 11 of the shell 1
that rotates when driven by a driving means.
[0279] Specifically, a first side brush 181 is arranged at the
upper left corner of the front end of the bottom 11 of the shell 1,
a second side brush 182 is arranged at the upper right corner of
the front end of the bottom 11 of the shell 1, and the first side
brush 181 and the second side brush 182 are preferably three-blade
type rotary side brushes. In addition, the lengths of bristles of
the first side brush 181 and the second side brush 182 are set so
that the first side brush 181 and the second side brush 182 do not
interfere with the first sweeping brush 151, the second sweeping
brush 152, the third sweeping brush 153 and the like in the
rotating process.
[0280] Therefore, according to the embodiment of the invention, by
arranging a first sweeping brush 151, a second sweeping brush 152
and a third sweeping brush 153 which are separated from and
independently arranged from the air duct suction opening near the
center of the bottom of the shell and a first groove 133, a second
groove 134, a third groove 135 and a fourth groove 136 which are
matched with the first sweeping brush 151, the second sweeping
brush 152 and the third sweeping brush 153, and arranging the first
side brush 181 and the second side brush 182 which rotate on the
left corner and the right corner of the front end of the bottom of
the shell, the dust at the center and the edge of the sweeper can
be effectively swept to be sucked into the air duct suction opening
12, the sweeping and cleaning effects are particularly ideal, and
the sweeping efficiency and effect are effectively improved.
[0281] It will be appreciated that the first, second and third
sweeping brushes 151, 152, 153 may employ the corresponding
structures and modes of motion in embodiments 14 or 15, and the
implementation effect of the embodiment of the invention can also
be achieved.
Example 26
[0282] Referring to FIG. 31, an embodiment of the present invention
provides a sweeping mechanism that, on the basis of Example 16,
provides a side brush on each of the at least one corner of the
front end of the bottom 11 of the shell 1 that rotates when driven
by a driving means.
[0283] Specifically, a first side brush 181 is arranged at the
upper left corner of the front end of the bottom 11 of the shell 1,
a second side brush 182 is arranged at the upper right corner of
the front end of the bottom 11 of the shell 1, and the first side
brush 181 and the second side brush 182 are preferably three-blade
type rotary side brushes. In addition, the lengths of the bristles
of the first side brush 181 and the second side brush 182 are set
so that the first side brush 181 and the second side brush 182 do
not interfere with the first sweeping brush 151, the second
sweeping brush 152 and the like in the rotating process.
[0284] Therefore, according to the embodiment of the invention, by
arranging a first sweeping brush 151 and a second sweeping brush
152 which are separated from and independently arranged from the
air duct suction opening near the center of the bottom of the shell
and a sub-groove 133a, a sub-groove 133b, a sub-groove 134a and a
sub-groove 134b which are matched with the first sweeping brush 151
and the second sweeping brush 152, and arranging the first side
brush 181 and the second side brush 182 which rotate on the left
corner and the right corner of the front end of the bottom of the
shell, the dust at the center and the edge of the sweeper can be
effectively swept to be sucked into the air duct suction opening
12, the sweeping and cleaning effects are particularly ideal, and
the sweeping efficiency and effect are effectively improved.
[0285] It will be appreciated that the first sweeping brush 151 and
the second sweeping brush 152 can adopt the corresponding
structures and modes of motion in Example 16, and the
implementation effect of the embodiment of the invention can also
be achieved.
Example 27
[0286] Referring to FIG. 32, an embodiment of the present invention
provides a sweeping mechanism that, on the basis of Example 17,
provides a side brush on each of the at least one corner of the
front end of the bottom 11 of the shell 1 that rotates when driven
by a driving means.
[0287] Specifically, a first side brush 181 is arranged at the
upper left corner of the front end of the bottom 11 of the shell 1,
a second side brush 182 is arranged at the upper right corner of
the front end of the bottom 11 of the shell 1, and the first side
brush 181 and the second side brush 182 are preferably three-blade
type rotary side brushes. In addition, the lengths of bristles of
the first side brush 181 and the second side brush 182 are set so
that the bristles do not interfere with the sweeping sub-brush
151a, the sweeping sub-brush 151b, the sweeping sub-brush 152a, the
sweeping sub-brush 152b and the like in the rotating process.
[0288] Therefore, according to the embodiment of the invention, by
arranging a sweeping sub-brush 151a, a sweeping sub-brush 151b, a
sweeping sub-brush 152a and a sweeping sub-brush 152b which are
separated from and independently arranged from the air duct suction
opening near the center of the bottom of the shell and a sub-groove
133a, a sub-groove 133b, a sub-groove 134a and a sub-groove 134b
which are matched with sweeping sub-brush 151a, the sweeping
sub-brush 151b, the sweeping sub-brush 152a and the sweeping
sub-brush 152b, and arranging the first side brush 181 and the
second side brush 182 which rotate on the left corner and the right
corner of the front end of the bottom of the shell, the dust at the
center and the edge of the sweeper can be effectively swept to be
sucked into the air duct suction opening 12, the sweeping and
cleaning effects are particularly ideal, and the sweeping
efficiency and effect are effectively improved.
[0289] It can be understood that the sweeping sub-brush 151a, the
sweeping sub-brush 151b, the sweeping sub-brush 152a and the
sweeping sub-brush 152b can adopt corresponding structures and
movement modes in the Example 17, and the implementation effect of
the embodiment of the invention can also be achieved.
[0290] The foregoing descriptions are merely exemplary embodiments
of the present invention, and it should be noted that several
modifications and substitutions may also be made to those of
ordinary skill in the art without departing from the principles of
the invention, which should also be considered as a scope of
protection of the invention.
* * * * *