U.S. patent application number 17/568733 was filed with the patent office on 2022-04-28 for weed removing tool.
This patent application is currently assigned to Zhejiang Prulde Electric Appliance Co., Ltd.. The applicant listed for this patent is Zhejiang Prulde Electric Appliance Co., Ltd.. Invention is credited to Ting Han, Wei-Ming Yang.
Application Number | 20220125034 17/568733 |
Document ID | / |
Family ID | 1000006068874 |
Filed Date | 2022-04-28 |
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United States Patent
Application |
20220125034 |
Kind Code |
A1 |
Han; Ting ; et al. |
April 28, 2022 |
WEED REMOVING TOOL
Abstract
A weed removing tool includes a tool body and a cover body
arranged on an air outlet on the tool body. The cover body is
provided with a support frame forming a heat dissipation gap
between an opening and an object to be processed during operation.
Such a structure prevents the problem that the entire heating
object is over-heated to damages because the cover body is coated
over the heating object and is not timely removed. In addition,
with such a structure, during heating, the force applied by the
hands may be reduced by means of the support frame.
Inventors: |
Han; Ting; (Zhejiang,
CN) ; Yang; Wei-Ming; (Zhejiang, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Zhejiang Prulde Electric Appliance Co., Ltd. |
Zhejiang |
|
CN |
|
|
Assignee: |
Zhejiang Prulde Electric Appliance
Co., Ltd.
Zhejiang
CN
|
Family ID: |
1000006068874 |
Appl. No.: |
17/568733 |
Filed: |
January 5, 2022 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
15222952 |
Jul 29, 2016 |
|
|
|
17568733 |
|
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A01M 21/04 20130101 |
International
Class: |
A01M 21/04 20060101
A01M021/04 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 8, 2016 |
CN |
201620289531.1 |
Apr 27, 2016 |
CN |
201620366627.3 |
Apr 27, 2016 |
CN |
201620366908.9 |
May 10, 2016 |
CN |
201610307985.1 |
May 10, 2016 |
CN |
201620420734.X |
Claims
1. A weed removing tool, comprising: a tool body and a cover body
arranged on an air outlet on the tool body, wherein the cover body
is provided with a support frame forming a heat dissipation gap
between an opening and an object to be processed during operation,
the air outlet of the tool body is further provided with a root
damage probe.
2. The weed removing tool according to claim 1, wherein the root
damage probe is a hollow conical structure, and a top portion of
the probe is provided with an air outlet hole.
3. The weed removing tool according to claim 2, wherein heat
dissipation holes are arranged on a side wall of the root damage
probe.
4. The weed removing tool according to claim 1, wherein an edge of
the air outlet hole at the top portion the root damage probe is a
blade portion.
5. The weed removing tool according to claim 1, wherein the root
damage probe is a solid metal cone.
6. The weed removing tool according to claim 1, further comprising
at least one wheel body arranged on a side face of the cover body
and operable to support the weed removing tool.
7. The weed removing tool according to claim 1, further comprising
a free edge, a plane where the freed edge of the cover body is
located forming an inclined angle with a plane perpendicular to an
air outlet direction of the air outlet.
8. The weed removing tool according to claim 1, wherein the tool
body and the cover body are integrally formed.
9. The weed removing tool according to claim 1, wherein the support
frame comprises a fixing portion connected to the cover body, and a
support end acting on the object to be processed and forming the
heat dissipation gap.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a divisional application of and claims
the priority benefit of U.S. application Ser. No. 15/222,952, filed
on Jul. 29, 2016, which claims the priority benefit of China
application serial no. 201620289531.1, filed on Apr. 8, 2016 and
China application serial no. 201620366627.3, filed on Apr. 27, 2016
and China application serial no. 201620366908.9, filed on Apr. 27,
2016 and China application serial no. 201610307985.1, filed on May
10, 2016 and China application serial no. 201620420734.X, filed on
May 10, 2016. The entirety of each of the above-mentioned patent
applications is hereby incorporated by reference herein and made a
part of this specification.
TECHNICAL FIELD
[0002] The present invention relates to the field of electric
tools, and in particular, relates to a weed removing tool.
BACKGROUND
[0003] The categories of weed removing tools are more and more
refined. In the current market, a weed burner in a substantially
elongated shape emerges. A common weed remover is only capable of
removing stem and leaves of the weed, with the root of the weed
still remaining in the soil. In this way, a period of time later,
new stem and leaves may grow out from the root. However, the weed
burner may spray hot wind which can kill the root of the weed,
which prevents the growth of new stem or leaves from the root.
Since this type of product is just released to the market, few
development resources are provided to the product, such that the
product is subjected to various problems during use.
[0004] In the related art, to solve this technical problem, the
invention patent No. 201210228409.X entitled with "DEVICE,
ASSEMBLY, AND METHOD FOR MANUALLY LOCALLY REMOVING WEED" is
provided. A heat generator 4 attached to a rod 2 is disclosed. The
heat generator 4 includes a fan and a heating resistor, the heat
generator 4 injects a hot air jet flow J1 to an interior volume V5
of a clock-shaped member 5, wherein the clock-shaped member 5 is
provided with a free end 51 operable to bear and support the device
1 on the ground. According to this invention patent, the
clock-shaped member 5 is provided with at least one hole operable
to exhaust an air jet flow J2 from the interior volume V5 of the
clock-shaped member 5. A spacing between the hole and the free edge
51 is greater than 2 cm.
[0005] In the related art, the blower and the hot weed remover,
although with different names, operate under the similar principle.
However, the hole designed in the related art reduces the
efficiency of the heating device to some extent. Particularly, the
heating device fails to conduct heating based on precise
positioning. In addition, turbulence may be caused during
adjustment the air speed at the air outlet, thereby causing user
inconvenience.
SUMMARY
[0006] To solve the above problem, the present invention provides a
weed removing tool which may be more conveniently used, to attain
improvements in three aspects of weed removing efficiency, product
use safety and product life time.
[0007] To achieve the above objective, in the present invention, a
weed removing tool includes a tool body and a cover body arranged
on an air outlet on the tool body. The cover body is provided with
a support frame forming a heat dissipation gap between an opening
and an object to be processed during operation. Such a structure
firstly prevents the problem that the entire heating object is
over-heated and burned because the cover body is coated over the
heating object and is not timely removed. In addition, with such a
structure, during heating, the force applied by the hands may be
reduced by means of the support frame, the working load may be
lowered, and the entire heating precision is higher.
[0008] Preferably, the support frame includes a fixing portion
connected to the cover body, and a support end acting on the object
to be processed and forming the heat dissipation gap.
[0009] The present invention further provides a weed removing tool
including a tool body and a cover body arranged on an air outlet,
the cover body having a heat dissipation port. A cover sheet for
regulating the size of the heat dissipation port to thus regulate
the temperature at the air outlet is arranged at a position on the
cover body corresponding to the heat dissipation port. With such a
structure, during heating, the size of the heat dissipation port
may be adjusted according to the actual needs, which does not waste
the heat within the cover body, and additionally prevents safety
risks caused by over-heating within the cover body. The entire
structure may be more conveniently carried and mounted.
[0010] Preferably, the cover sheet is connected to the cover body,
and is movable relative to the cover body. Through movement, the
cover sheet may adjust the area covering the heat dissipation port,
thereby controlling the heat dissipated from the heat dissipation
port and achieving the effect of temperature adjustment.
[0011] Preferably, the cover sheet is an outer cover coating the
cover body, the outer cover axially moving relative to the cover
body and being fixed to a selected position. In this way, the size
of the heat dissipation port may be adjusted by axially moving the
cover sheet.
[0012] Preferably, the cover sheet is an outer cover coating an
outer side of the cover body, the outer cover being provided with a
limiting port 88 matching with the heat dissipation port, and the
outer cover rotating relative to the cover body. The overlap
portion between the limiting port 88 and the heat dissipation port
is an actually opened portion of the heat dissipation port. With
such a solution, the actually opened area of the dissipation port
may be adjusted by rotating the outer cover, thereby adjusting the
actual temperature within the cover body.
[0013] Preferably, the air outlet of the tool body is further
provided with a root burning probe. With such a structure, the tool
may be directly inserted into the soil to cut the root of the weed,
thereby really achieving the effect of absolutely eliminating the
weed. In this way, the weed may be effectively, environmentally and
quickly removed. In addition, during the weed removing, the soil
may also be loosened, and the pests underneath the soil may also be
killed, thereby improving the quality of the soil.
[0014] Preferably, the root burning probe is a hollow conical
structure, and a top portion of the probe is provided with an air
outlet hole. Such a structure ensures that the burning and removing
work is conducted in a short range after the tool is inserted into
the soil.
[0015] Preferably, heat dissipation holes are arranged on a side
wall of the root burning probe. The heat dissipation port provided
on the side wall of the root burning probe prevents overheat of the
intermediate portion of the root burning probe. During use, the
heat dissipation port on the side wall of the root burning probe
outside the soil prevents the root burning probe from being burnt
due to over-heat.
[0016] Preferably, an edge of the air outlet hole at the top
portion the root burning probe is a blade portion. In this way, the
weed may be firstly cut and then burnt, thereby achieving a very
thorough removing effect.
[0017] Preferably, the root burning probe is a solid metal cone. In
some scenarios where the soil is very solid and hard, the hollow
root burning probe is hard to be inserted, and thus the probe is
subjected to great wear. In this case, a solid metal cone may be
conveniently inserted into the root of the weed. However, such a
structure requires that the probe is inserted to be very close to
the root of the weed, in order to achieve an anticipated burning
and removing effect.
[0018] Preferably, the weed removing tool further includes at least
one wheel body arranged on a side face of the cover body and
operable to support the weed removing tool. When the weed removing
region needs to be shifted, a user may directly conveniently move
the tool to a next location by means of pushing. This prevents the
spray cover from being affected by the objects on the ground.
During normal use, the weed removing tool has its own weight and
may be subjected to jitter. However, in this solution, the wheels
of the tool withstands from the pressure and jitter, thereby
prolonging the life time of the spray cover, and enhancing the
overall stability of the entire tool.
[0019] Preferably, the weed removing tool further includes a free
edge, wherein a plane where the freed edge of the cover body is
located forms an inclined angle with a plane perpendicular to an
air outlet direction of the air outlet. The free edge refers to an
edge of an air outlet side of the opening on the cover body. With
such an angle, the tool may not be necessarily perpendicular to the
ground when a hot wind gun is used. This facilitates the use and
operations of the tool.
[0020] Preferably, the tool body and the cover body are integrally
formed.
[0021] With the technical solution of the present invention, the
tool is designed with respect to different weed burning and
removing scenarios very dedicatedly, and the weed burning and
removing work may be more professionally, more safely and more
effectively conducted.
[0022] These advantages and characteristics of the present
invention are described hereinafter in detail in the detailed
description, and accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWING
[0023] The present invention is further described with reference to
the accompanying drawings.
[0024] FIG. 1 is a schematic integral view of a weed removing tool
equipped with a wheel body according to the present invention;
[0025] FIG. 2 is a schematic structural diagram of a cover body of
a weed removing tool according to Embodiment 1 of the present
invention;
[0026] FIG. 3 is a schematic structural diagram of a cover body of
a weed removing tool according to Embodiment 2 of the present
invention;
[0027] FIG. 4 is a schematic structural diagram of a cover body of
a weed removing tool according to Embodiment 2 of the present
invention;
[0028] FIG. 5 is a schematic structural diagram of a cover body of
a weed removing tool according to Embodiment 3 of the present
invention;
[0029] FIG. 6 is a schematic structural diagram of a cover body of
a weed removing tool according to Embodiment 3 of the present
invention;
[0030] FIG. 7 is a schematic structural diagram of a cover body of
a weed removing tool according to Embodiment 4 of the present
invention;
[0031] FIG. 8 is a schematic structural diagram of a weed removing
tool equipped with a root burning probe according to Embodiment 4
of the present invention;
[0032] FIG. 9 is a schematic structural view of a cover body
according to Embodiment 5 of the present invention;
[0033] FIG. 10 is another schematic structural view of the cover
body according to Embodiment 5 of the present invention;
[0034] FIG. 11 is a schematic structural diagram of a cover body
equipped with a root burning probe according to Embodiment 6 of the
present invention;
[0035] FIG. 12 is a schematic structural diagram of a weed removing
tool equipped with a root burning probe according to Embodiment 7
of the present invention;
[0036] FIG. 13 is a schematic structural diagram of a cover body
equipped with a root burning probe according to Embodiment 7 of the
present invention; and
[0037] FIG. 14 is a schematic structural view of a cover body
equipped with a wheel body according to the present invention.
DETAILED DESCRIPTION
[0038] The technical solution according to embodiments of the
present invention is further illustrated and described with
reference to the accompanying drawings of the embodiments of the
present invention. However, the embodiments hereinafter are merely
some preferred embodiments, rather than all embodiments of the
present invention. Based on the embodiments of the present
invention, all other embodiments derived by persons of ordinary
skill in the art without any creative efforts shall fall within the
protection scope of the present invention.
[0039] As illustrated in FIG. 1, a weed removing tool is provided,
which includes a tool body, wherein the tool body is a tool body
rod 2 having a handle 1 and a cover body 5 connected to the tool
body rod 2. The other end of the tool body rod 2 is provided with a
heating and air blowing apparatus 3. A front end of the heating and
air blowing apparatus 3 is provided with an air outlet 6.
Embodiment 1
[0040] As illustrated in FIG. 2, a weed removing tool is provided,
wherein at least two parallelly arranged arc-shaped metal support
rings 52 are fixed on a free edge 10 of the cover body 5 by using a
fixing member, wherein the metal support rings 52 do not obscure
the air outlet 6 of the tool body. Such a structure ensures that
the free edge 10 of the cover body 5 is maintained a specific
distance from the object to be processed, wherein this distance is
generally preferably defined between 1 cm and 3 cm. During heating,
the radian of the metal support rings 52 may also be utilized to
precisely adjust the heating angle only with a mild force.
Embodiment 2
[0041] As illustrated in FIG. 3 and FIG. 4, a weed removing tool is
provided, wherein the support frame includes a fixing portion 53, a
transitional portion and a support portion. The fixing portion 53
has the same radian as the free edge of the cover body 5, and is
fixed on the free edge 10. The support portion is distal from the
free edge 10. The transitional portion is connected to the fixing
portion 53 and the support portion 5, and ensures that the support
portion 5 is still capable of maintaining a distance of at least 1
to 3 cm from the free edge 10 when withstanding a force. With such
a structure, the support frame is securely fixed to the cover body
5, and thus the structure is capable of withstand a greater
force.
Embodiment 3
[0042] As illustrated in FIG. 5 and FIG. 6, a weed removing tool is
provided, wherein the side view of the support frame is an inverted
V shape, wherein a highest point 58 of the inverted V shape is
fixed to the free edge 10, and the bottom of the inverted V shape
is an annular support portion 55. Such a structure is
advantageously in that the structure is stable and thus labor
saving for the operational personnel.
[0043] In various embodiments, the free edge 10 of the cover body 5
is a flat edge, and is designed such that an inclined angle of not
greater than 30 is formed between the plane where the cover body is
located and the plane perpendicular to an air outlet direction of
the air outlet 6.
[0044] In this way, even if the support frame is burnt, the cover
body 5 would not form an closed region with the heating object to
cause over-heat.
[0045] If it is further desired to reduce the heat, a heat
dissipation port 7 is further provided on the cover body 5.
[0046] In various embodiments, the support frame and the cover body
5 may be fixed to each other via a rivet 59 or by means of direct
welding. In several embodiments of the present invention, since the
support frame is mounted on the free edge 10 and the contact area
thereof is small, a rivet-based connection is employed.
[0047] Although in the specific embodiments, implementation of
mounting the support frame on an inner side or an outer side of the
cover body 5 is not involved, it may be readily inferred from the
embodiments that the support frame is mounted on the inner side or
the outer side of the cover body 5. These technical solutions are
all within the protection scope of the present invention. In
addition, in such embodiments, the support frame is more suitable
to be mounted on the cover body 5 by means of welding.
Embodiment 4
[0048] As illustrated in FIG. 7, a weed removing tool according to
the present invention includes a cover body 5 having a heat
dissipation port 7 for heat dissipation, wherein a cover sheet 8
for regulating the size of the heat dissipation port to thus
regulate the temperature at an air outlet 6 is arranged at a
position on the cover body 5 corresponding to the heat dissipation
port 7. The cover sheet 5 is connected to the cover body 5, and is
subject to displacement relative to the cover body 5. The
displacement includes rotation and translation of the cover sheet
8.
[0049] The cover sheet 8 is a trapezoid cover sheet 8 and the
coverage area thereof is greater than the area of the heat
dissipation port 7. The cover body 5 includes the free edge 10. The
free edge 10 refers to an edge at the position of the air outlet
port 6 of the cover body 5, which is in direct contact with the
circle of the heating object. The free edge neighboring the heat
dissipation port 7 is provided with a limiting groove 83
restricting a movement range of the cover sheet 8. A push rod 82
for controlling movement of the cover sheet 8 is further provided
on an upper end of the cover sheet 8. In this way, the position of
the cover sheet 8 may be adjusted by moving the push rod 82. To
prevent the cover sheet 8 from being subjected to displacement
after the adjustment, the cover sheet 8 is provided with at least
one hollow protrusion strip 81. The hollow protrusion strip 81
meanwhile prevents the cover sheet 8 from deformation due to
thermal expansion and contraction. Four to six hollow protrusion
strips 81 are generally parallelly arranged, such that a better
utilization effect is achieved.
[0050] In this way, the weed removing tool according to the present
invention may be used after being mounted in a weed burner. During
use, the heat within the cover body 5 may be controlled by
adjusting the position of the cover sheet 84.
Embodiment 5
[0051] As illustrated in FIGS. 8 and 9, a weed removing tool
according to the present invention includes a cover body 5 which is
provided with a heat dissipation port 7 for heat dissipation,
wherein a cover sheet 8 for regulating the size of the heat
dissipation port 7 to thus regulate the temperature at an air
outlet 6 is arranged at a position on the cover body 5
corresponding to the heat dissipation port 7. The cover sheet 8 is
an outer cover coating the cover body 5. The outer cover axially
moves relative to the cover body 5, and may be fixed to a selected
position. A top portion of the outer cover is connected to the body
of the weed burner, and is provided with a rapid fastener.
[0052] In this embodiment, the size of the heat dissipation port 7
is controlled by axially adjusting the position of the outer cover.
After the adjustment, the heat dissipation port is fixed to the
position by using a fast fastener.
Embodiment 6
[0053] As illustrated in FIG. 10 and FIG. 11, a weed removing tool
according to the present invention includes a cover body 7 which is
provided with a heat dissipation port 7 for heat dissipation,
wherein a cover sheet 8 for regulating the size of the heat
dissipation port 7 to thus regulate the temperature at an air
outlet 6 is arranged at a position on the cover body 5
corresponding to the heat dissipation port 7. The cover sheet 8 is
an outer cover coating the outer side of the cover body 5. The
outer cover is provided with a limiting port 88 matching with the
heat dissipation port 7, and rotates relative to the cover body 5.
In this way, the overlap portion between the rotated limiting port
88 and the heat dissipation port 7 is the really opened heat
dissipation port. In this way, the actual temperature within the
cover body 5 is adjusted.
Embodiment 7
[0054] As illustrated in FIG. 12 and FIG. 13, a weed removing tool
according to the present invention, a root burning probe 9 is fixed
to the position of an air outlet 6, wherein the root burning probe
9 is a hollow conical structure. A top portion of the root burning
probe 9 is provided with an air outlet hole 91, and a side wall of
the root burning probe 9 is provided with heat dissipation holes
92. The air outlet hole 91 is arranged on a side face of the root
burning probe 9, and the air outlet hole 91 is tangential to the
top portion of the root burning probe 9. The edge of the air outlet
hole 91 is a blade portion. In this way, after the root burning
probe 9 is inserted into the soil, the weed removing tool may
firstly cut the weed and then burning and remove the root of the
weed by means of heating.
[0055] The cover body 5 includes a body having a heat dissipation
groove, wherein a sliding barrier is mounted on the body. The cover
body 5 is further provided with a limiting sliding groove, and the
sliding barrier is mounted in the limiting sliding groove. A side
face of the sliding barrier is further provided with parallel ribs,
and the sliding barrier is further connected to an operation
rod.
[0056] With respect to different cases, the root burning probe 9
and the tool body may be integrally formed, and the cover body 5 is
mounted on the tool body via a detachable connection member.
Similarly, the root burning probe 9 may also be formed integrally
with the cover body 9, and then mounted on the tool body.
Embodiment 8
[0057] In a weed removing tool according to the present invention,
a root burning probe 9 is fixed at the position of an air outlet
port 6, wherein the root burning probe 9 is a solid metal cone.
Such a structure is suitable for the scenario of solid and hard
soil. The cover body 5 includes a body having a heat dissipation
groove, wherein a sliding barrier is mounted on the body. The cover
body 5 is further provided with a limiting sliding groove, and the
sliding barrier is mounted in the limiting sliding groove. A side
face of the sliding barrier is further provided with parallel ribs,
and the sliding barrier is further connected to an operation
rod.
[0058] With respect to different cases, the root burning probe 9
and the tool body may be integrally formed, and the cover body 5 is
mounted on the tool body via a detachable connection member.
Similarly, the root burning probe 9 may also be formed integrally
with the cover body 9, and then mounted on the tool body.
[0059] In the above described various embodiments, a wheel body 4
may be provided, that is, two wheels 44 are fixed to two sides of
the spray cover, wherein the two wheels 44 are operable to support
the weed removing tool during the use.
[0060] Referring to FIG. 1 and FIG. 14, the two wheels 44 are fixed
to a positioning ring 41 via a first support post and a second
support post. With such a positioning manner, the wheels 44 do not
need to be directly arranged on the cover body 5, thereby
destroying the overall stability of the cover body 5 and prolonging
the life time of the cover body 5.
[0061] One end of the cover body 5 is a hollow fastener post and
the other end thereof is a hollow horn body, wherein the horn body
and the fastener post are integrally formed. The positioning ring
41 is internally provided with an accommodation hole, and the
fastener post passes through the accommodation hole and is fastened
to the air outlet port 6. The cover body 5 is directly connected to
the air outlet port 6, thereby preventing air leakage.
[0062] The positioning ring 41 is fixed on the fastener post 51 in
the following fixing manner: the positioning ring is provided with
at least one gap, the two ends of the positioning ring proximal to
the gap extend outwardly to define a first extended sheet and a
second extended sheet, wherein the first extended sheet is provided
with a first screw hole and the second extended sheet is provided
with a second screw hole mating with the first screw hole; a screw
43 passes though the first screw hole and the second screw hole to
form a fastener member 42, wherein the fastener member 42 fixes the
positioning ring 41 to the cylinder of the cover body. In this way,
the entire structure has a good fixing effect and a low manufacture
cost.
[0063] Described above are some specific embodiments of the present
invention, and the protection scope of the present invention is not
limited to such embodiments. A person skilled in the art would
understand that the present invention includes, but not limited to,
the accompanying drawings and the content of the above specific
embodiments. Any modification made without departing from the
functions and structural principles of the present invention shall
all fall within the protection scope defined by the appended
claims.
* * * * *