U.S. patent application number 09/865633 was filed with the patent office on 2002-11-28 for power sucker device having a releasing structure.
Invention is credited to Huang, Chen Hua.
Application Number | 20020175527 09/865633 |
Document ID | / |
Family ID | 25345924 |
Filed Date | 2002-11-28 |
United States Patent
Application |
20020175527 |
Kind Code |
A1 |
Huang, Chen Hua |
November 28, 2002 |
POWER SUCKER DEVICE HAVING A RELEASING STRUCTURE
Abstract
A power sucker includes a sucker member having a bore formed in
the upper portion and having a valve seat. A handle is secured to
the upper portion of the sucker member. A tube has a lower piston
slidably received in the bore of the sucker member, and biased to
engage with the valve seat. A hand grip is secured to the upper
portion of the tube for pulling and disengaging the piston away
from the valve seat. The tube includes an orifice and one or more
openings and one or more air passages for releasing air when the
piston is disengaged from the valve seat.
Inventors: |
Huang, Chen Hua; (Taichung,
TW) |
Correspondence
Address: |
Chen Hua Huang
108-24, Chong Chin Road
Bei Tun Chu
Taichung
406
TW
|
Family ID: |
25345924 |
Appl. No.: |
09/865633 |
Filed: |
May 25, 2001 |
Current U.S.
Class: |
294/187 |
Current CPC
Class: |
B25B 11/007 20130101;
F16B 47/00 20130101 |
Class at
Publication: |
294/64.1 |
International
Class: |
B25J 015/06 |
Claims
I claim:
1. A power sucker comprising: a sucker body including a conduit
formed therein, and including an upper portion having a bore formed
therein and communicating with said conduit, and including a valve
seat provided in said upper portion and in said bore thereof, a
handle secured to said upper portion of said sucker body, a tube
including a lower portion having a piston slidably received in said
bore of said sucker body, for engaging with said valve seat and for
blocking said bore of said sucker body, said tube including an
upper portion extended upward into said handle, means for biasing
said piston of said tube to engage with said valve seat, a hand
grip secured to said upper portion of said tube for pulling said
tube away from said valve seat against said biasing means, and
means for releasing air in said conduit of said sucker body when
said piston is disengaged from said valve seat.
2. The power sucker according to claim 1, wherein said sucker body
includes a cavity formed in said upper portion thereof, and
includes a block secured in said cavity thereof, said block
includes said bore formed therein and includes said valve seat
provided therein.
3. The power sucker according to claim 2, wherein said block
includes an outer peripheral portion having at least one recess
formed therein, said sucker body includes at least one rib extended
inward of said cavity thereof and engaged into said at least one
recess of said block for securing said block in said sucker
body.
4. The power sucker according to claim 1, wherein said sucker body
includes a cylindrical swelling provided on said upper portion
thereof, said handle includes a lower portion having a chamber
formed therein for receiving said cylindrical swelling of said
sucker body.
5. The power sucker according to claim 1, wherein said air
releasing means includes an orifice formed in said tube, at least
one passage formed in said piston for communicating with said
orifice of said tube, and at least one opening formed in said upper
portion of said tube and communicating with said orifice of said
tube and an environment.
6. The power sucker according to claim 5, wherein said piston
includes an outer peripheral recess formed therein and
communicating with said at least one passage of said piston.
7. The power sucker according to claim 1, wherein said piston
includes a peripheral bulge extended downward therefrom for
engaging with said valve seat.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a sucker, and more
particularly to a power sucker device having a releasing or an air
releasing structure.
[0003] 2. Description of the Prior Art
[0004] Typical suckers comprise a sucker body for attaching onto
the smooth surfaces. The suckers each includes a protrusion or a
rod extended outward from the peripheral skirt thereof. The users
may pull the rod to disengage the peripheral skirt of the sucker
body from the smooth surface in order to release the suckers, When
the suckers are made to a great volume or are formed as the power
suckers, it will be difficult to release the suckers with the
rod.
[0005] The present invention has arisen to mitigate and/or obviate
the afore-described disadvantages of the conventional suckers.
SUMMARY OF THE INVENTION
[0006] The primary objective of the present invention is to provide
a power sucker including a releasing or an air releasing structure
for easily and quickly releasing the power sucker.
[0007] The other objective of the present invention is to provide a
power sucker including a hand grip, particularly a peripheral hand
grip provided in a peripheral handle for easily releasing the air
of the power sucker.
[0008] In accordance with one aspect of the invention, there is
provided a power sucker comprising a sucker body including a
conduit formed therein, and including an upper portion having a
bore formed therein and communicating with the conduit, and
including a valve seat provided in the upper portion and in the
bore thereof, a handle secured to the upper portion of the sucker
body, a tube including a lower portion having a piston slidably
received in the bore of the sucker body, for engaging with the
valve seat and for blocking the bore of the sucker body, the tube
including an upper portion extended upward into the handle, means
for biasing the piston of the tube to engage with the valve seat, a
hand grip secured to the upper portion of the tube for pulling the
tube away from the valve seat against the biasing means, and means
for releasing air in the conduit of the sucker body when the piston
is disengaged from the valve seat.
[0009] The sucker body includes a cavity formed in the upper
portion thereof, and includes a block secured in the cavity
thereof, the block includes the bore formed therein and includes
the valve seat provided therein.
[0010] The block includes an outer peripheral portion having at
least one recess formed therein, the sucker body includes at least
one rib extended inward of the cavity thereof and engaged into the
recess of the block for securing the block in the sucker body.
[0011] The sucker body includes a cylindrical swelling provided on
the upper portion thereof, the handle includes a lower portion
having a chamber formed therein for receiving the cylindrical
swelling of the sucker body.
[0012] The air releasing means includes an orifice formed in the
tube, at least one passage formed in the piston for communicating
with the orifice of the tube, and at least one opening formed in
the upper portion of the tube and communicating with the orifice of
the tube and an environment.
[0013] The piston includes an outer peripheral recess formed
therein and communicating with the passage of the piston.
[0014] The piston includes a peripheral bulge extended downward
therefrom for engaging with the valve seat.
[0015] Further objectives and advantages of the present invention
will become apparent from a careful reading of a detailed
description provided hereinbelow, with appropriate reference to
accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] FIG. 1 is an exploded view of a power sucker in accordance
with the present invention;
[0017] FIG. 2 is a perspective view of the power sucker;
[0018] FIG. 3 is a cross sectional view taken along lines 3-3 of
FIG. 2;
[0019] FIG. 4 is an enlarged partial cross sectional view showing
the detail structure of the power sucker;
[0020] FIG. 5 is an enlarged partial cross sectional view showing a
tube of the power sucker; and
[0021] FIG. 6 is a cross sectional view similar to FIG. 3,
illustrating the operation of the power sucker.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0022] Referring to the drawings, and initially to FIGS. 1-5, a
power sucker in accordance with the present invention comprises a
sucker body 10 including a cavity 11 formed in the upper portion
thereof, and including one or more projections or teeth or
peripheral ribs 12 extended inward of the cavity 11 thereof, and
including a cylindrical swelling 15 provided on the upper portion
thereof. The sucker body 10 is made of rubber materials or the
other resilient materials. A block 14 is secured in the cavity 11
of the sucker body 10 and includes an outer thread or one or more
holes or recesses 141 formed in the outer peripheral portion
thereof for receiving the teeth or the ribs 12 of the sucker body
10 and for securing to the sucker body 10. The block 14 includes an
upper portion 17 extended upward beyond the sucker body 10 and
includes an outer thread 18 formed thereon, and includes a bore 19
formed therein, and includes a peripheral shoulder or a valve seat
16 formed in the middle portion of the bore 19 thereof. A gasket 20
is received in the bore 19 of the block 14 and engaged with the
valve seat 16 of the block 14. The sucker body 10 includes a
conduit 101 formed therein and aligning or communicating with the
bore 19 of the block 14. The block 14 may also be formed as an
integral portion of the sucker body 10 by a molding process, with a
material different from that of the sucker body 10, for
example.
[0023] A tube 30 has a lower portion slidably received in the bore
19 of the block 14, and includes a piston 31 provided or attached
to the bottom thereof, and includes a sealing ring 37 engaged on
the outer portion of the piston 31 for slidably engaging with the
inner peripheral surface of the block 14 and for making a water
tight seal between the block 14 and the piston 31. The piston 31 is
provided for engaging with the valve seat 16 of the block 14 and
for blocking the bore 19 of the block 14. The tube 30 includes an
annular recess 32 formed in the outer peripheral portion of the
piston 31 and located below the sealing ring 37, and includes an
orifice 33 longitudinally formed therein, and includes one or more
passages 34 formed in the lower portion thereof and communicating
with the orifice 33 and the peripheral recess 32 thereof, and
includes one or more openings 36 laterally formed in the upper
portion thereof for communicating the upper portion of the orifice
33 of the tube 30 with the outer environment. A spring 38 is
engaged on the tube 30 and engaged with the piston 31 for biasing
the piston 31 to engage with the valve seat 16 of the block 14. The
tube 30 includes an outer thread 39 formed in the upper portion
thereof for threading with a lock nut 44.
[0024] As best shown in FIG. 4, the piston 31, particularly the
lower portion 311 of the piston 31, includes an outer diameter
smaller than the inner diameter of the bore 19 of the block 14,
such that the air or the fluid may flow bypass the peripheral
portion of the lower portion 311 of the piston 31 and may flow into
or outward of the orifice 33 via the passages 34 of the tube 30.
The air or the fluid may then flow into or out or between the
orifice 33 of the tube 30 and the environment via the openings 36
of the tube 30. As shown in FIG. 5, the tube 30 includes a
peripheral bulge 313 extended downward from the bottom of the
piston 31 for engaging with the gasket 20 or the valve seat 16 and
for firmly or effectively engaging with the valve seat 16.
[0025] A peripheral or a substantially O-shaped handle 40 includes
an enlarged lower portion 41 having a hole 42 and an enlarged
chamber 43 formed therein, in which the enlarged chamber 43 is
preferably formed in the bottom of the lower portion 41 of the
handle 40 for receiving the cylindrical swelling 15 of the sucker
body 10. The upper portion of the tube 30 and the upper portion 17
of the block 14 are engaged through the hole 42 of the lower
portion 41 of the handle 40. The lock nut 44 is engaged on the
lower portion 41 of the handle 40 and threaded to the outer thread
18 of the block 14 for solidly securing the handle 40 to the sucker
body 10. The spring 38 is engaged between the lock nut 44 and the
piston 31 for biasing the piston 31 to engage with the valve seat
16 of the block 14. A hand grip 46 is received in the handle 40 and
includes an inner thread or a lock nut 47 disposed in the lower
portion thereof for threading with the outer thread 39 of the tube
30 and for secured to the upper portion of the tube 30, and for
moving or pulling the tube 30 upward relative to the sucker body 10
and away from the valve seat 16 of the sucker body 10, against the
spring 38, for disengaging the piston 31 of the tube 30 away from
the valve seat 16.
[0026] The hand grip 46 is also preferable peripheral or circular
or includes a substantially O-shape, for allowing the hand grip 46
to be easily and comfortably pulled by the users relative to the
handle 40.
[0027] In operation, as shown in FIGS. 3 and 4, the spring 38 may
bias the piston 31 to engage with the valve seat 16 of the block 14
and to block the bore 19 of the block 14. As shown in FIG. 6, when
the hand grip 46 is pulled by the users, the tube 30 and thus the
piston 31 may be pulled and moved upward away from the sucker body
10 and thus may be pulled away from the valve seat 16 of the sucker
body 10, against the spring 38, such that the piston 31 of the tube
30 may be disengaged or pulled away from the valve seat 16.
[0028] As shown in FIG. 3 again, when the sucker body 10 is forced
against a surface 80, the air in the sucker body 10 may be forced
through the conduit 101 of the sucker body 10 and may be forced
into the bore 19 of the block 14, and then may force the piston 31
away from the valve seat 16 of the block 14, such that the air may
be released or may flow out through the peripheral recess 32 and
the orifice 33 of the tube 30, and may flow out to the environment
via the openings 36 of the tube 30. When the sucker device is
released, a vacuum force may be generated in the sucker body 10,
and the piston 31 may be drawn to engage with the valve seat 16 of
the block 14 and to block the bore 19 of the block 14. The spring
38 may also force the piston 31 to engage with the valve seat 16 of
the block 14.
[0029] When the hand grip 46 is pulled by the users, as shown in
FIG. 6, the piston 31 may be disengaged from the valve seat 16 of
the sucker body 10, against the spring 38, such that the air may
flow into the orifice 33 of the tube 32 via the openings 36 of the
tube 30, and may then flow into the sucker body via the passages 34
and the peripheral recess 32 of the tube 30, and may flow through
the bore 19 of the block 14 and the conduit 101 of the sucker body
10, such that the sucker body may be easily released by pulling the
hand grip 46 relative to the handle 40.
[0030] Accordingly, the power sucker in accordance with the present
invention includes a releasing or an air releasing structure for
easily and quickly releasing the power sucker.
[0031] Although this invention has been described with a certain
degree of particularity, it is to be understood that the present
disclosure has been made by way of example only and that numerous
changes in the detailed construction and the combination and
arrangement of parts may be resorted to without departing from the
spirit and scope of the invention as hereinafter claimed.
* * * * *