U.S. patent application number 12/068135 was filed with the patent office on 2009-08-06 for high-pressure pneumatic apparatus.
Invention is credited to Hsin-Hung Lin.
Application Number | 20090194087 12/068135 |
Document ID | / |
Family ID | 40930441 |
Filed Date | 2009-08-06 |
United States Patent
Application |
20090194087 |
Kind Code |
A1 |
Lin; Hsin-Hung |
August 6, 2009 |
High-pressure pneumatic apparatus
Abstract
An improved high-pressure pneumatic apparatus can prevent gas
leakage and allows quick assembling and is safe in use. The
apparatus can be used with a barrel of an anti-riot or rescue tool
gun, such as a catching net gun, a line-throwing gun or a riot gun,
for supplying an intensive pressure for shooting in a very short
time.
Inventors: |
Lin; Hsin-Hung; (Luibu
Township, TW) |
Correspondence
Address: |
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY
MD
21043
US
|
Family ID: |
40930441 |
Appl. No.: |
12/068135 |
Filed: |
February 4, 2008 |
Current U.S.
Class: |
124/74 |
Current CPC
Class: |
F41B 11/62 20130101 |
Class at
Publication: |
124/74 |
International
Class: |
F41B 11/06 20060101
F41B011/06 |
Claims
1. An improved high-pressure pneumatic apparatus, comprising: an
actuation gun, which mainly comprises a recess, a forwardly
extended shaft slot in communication with the recess, a tension
spring inserted in a bottom of the shaft slot while slightly
protruding out of the shaft slot, and a trigger disposed at a
distal end of the shaft slot, wherein the actuation gun at a front
portion thereof comprises a barrel gas chamber that is in
communication with a handle internal chamber and has a hole defined
at a rear thereof in communication with the recess, in which a tube
protrudes from an edge of the hole to form a tube slot so as to
allow a strike pin and a spring to be inserted through the tube
slot, and a cover having a through hole to cover the tube slot, and
a plurality of protruding blocks is formed near an opening of the
barrel gas chamber, and wherein an axle is disposed in the recess
for supporting a movable strike arm that has one end thereof formed
as a hook portion for being hooked with a hook of a shaft, which is
disposed in the shaft slot and has a hole defined at a front end
thereof for receiving a protruding pin of the trigger such that the
shaft can be moved by the trigger, in which the tension spring
resists against a bottom surface of the shaft; a gas-pressure
device, which comprises a valve cock unit centrally defining a
valve hole and a recessed portion for receiving a resilient valve
ball so that a recessed portion at a rear end of the tubular ball
retainer abuts against and thereby positions the resilient valve
ball, and a high-pressure gas bottle disposed in a latch bracket
and positioned relative to the valve cock unit by inserting
protrusions of the latch bracket into latch rails of the valve cock
unit and rotating the latch bracket relative to the valve cock
unit, wherein the tubular ball retainer comprises a plate bracket
abutting against a front end of the latch bracket so as to position
the high-pressure gas bottle in place, and the valve cock unit
comprises a plurality of gun latch rails behind the latch rails;
and a recessed disk, which is connected with an inner tube of a gun
tube and has a plurality of spaced tabs arranged along an outer
periphery thereof; whereby when the gun tube is connected with the
gas-pressure device, the protruding blocks of the barrel gas
chamber of the actuation gun are inserted into the gun latch rails
of the valve cock unit respectively, and the valve cock unit is
rotated and thus positioned relative to the actuation gun.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to an improved high-pressure
pneumatic apparatus, and more particularly to a high-pressure
pneumatic apparatus, which can prevent gas leakage and is safe in
use.
[0003] 2. Description of Related Art
[0004] In a conventional anti-riot or rescue tool gun, such as a
catching net gun, a line-throwing gun or a riot gun, a gas bottle
or a gunpowder cartridge is typically disposed at a distal end of a
barrel thereof to supply a high-pressure power for shooting.
[0005] However, since the gas bottle is designed to be refilled
with gas, gas leakage may take place insensibly and may adversely
affect the shooting of the gun. Therefore, periodical check on the
gas pressure in the gas bottle and refilling the gas as needed,
which are both labor-consuming and cost-consuming, are necessary
for ensuring good operation of the gun.
[0006] On the other hand, the conventional anti-riot or rescue tool
gun that implements gunpowder explosion as a power source for
shooting is limited in use due to the strict legal restrictions on
the use of gunpowder.
[0007] What is needed, therefore, is a high-pressure pneumatic
apparatus that can be used with barrels of various anti-riot and
rescue tool guns and can generate high pressure for shooting in a
very short time, in addition, in which gas leakage can be prevented
to achieve stable intensive pressure for shooting, and adjustment
of the gas pressure is allowed.
SUMMARY OF THE INVENTION
[0008] The present invention is directed to an improved
high-pressure pneumatic apparatus, and more particularly to a
high-pressure pneumatic apparatus, which can prevent gas leakage
and allow quick assembling and is safe in use. The apparatus can be
used with a barrel of an anti-riot or rescue tool gun, such as a
catching net gun, a line-throwing gun or a riot gun, for supplying
intensive pressure for shooting in a very short time. In addition,
the present invention allows the pressure for shooting to be
adjusted to an appropriate pressure level.
[0009] In order to make the aforementioned and other features and
advantages of the present invention more comprehensible,
embodiments accompanied with figures are described in detail
below.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] FIG. 1 is a perspective view of an actuation gun of the
present invention.
[0011] FIG. 2 is a cross sectional view of the actuation gun of the
present invention.
[0012] FIG. 3 is a cross sectional view of a gas-pressure device of
the present invention.
[0013] FIG. 4 is an exploded view of the gas-pressure device of the
present invention.
[0014] FIG. 5 is an assembled view of a recessed disk and a gun
tube of the present invention.
[0015] FIG. 6 is a cross sectional view of the recessed disk and
the gun tube of the present invention assembled.
[0016] FIG. 7 is a cross sectional view of the gas-pressure device
connected with the gun tube of the present invention.
[0017] FIG. 8 is an exploded view of the gas-pressure device
connected with the gun tube and further connected with the
actuation gun of the present invention.
[0018] FIG. 9 is an operational view of an improved high-pressure
pneumatic apparatus of the present invention.
[0019] FIG. 10 is a simplified diagram illustrating gas pressure
supply operation of the improved high-pressure pneumatic apparatus
of the present invention.
DESCRIPTION OF THE EMBODIMENT
[0020] An improved high-pressure pneumatic apparatus comprises an
actuation gun 10, a gas-pressure device 80, and a recessed disk
95.
[0021] Referring to FIGS. 1 and 2, the actuation gun 10 mainly
includes a recess 101 and a forwardly extended shaft slot 102 in
communication with the recess 101. A tension spring 20 is inserted
in a bottom of the shaft slot 102, slightly protruding out of the
shaft slot 102. In addition, a trigger 30 is disposed at a distal
end of the shaft slot 102. Referring to FIG. 2, the actuation gun
10 includes a barrel gas chamber 103 at a front portion thereof.
The barrel gas chamber 103 is in communication with a handle
internal chamber 104. A hole in communication with the recess 101
is defined at a rear of the barrel gas chamber 103. A tube
protrudes from an edge of the hole to form a tube slot 104a. A
strike pin 40 and a spring 40a can be inserted through the tube
slot 104a, and a cover 50 having a through hole can cover the tube
slot 104a. Besides, a plurality of protruding blocks 103a is formed
near an opening of the barrel gas chamber 103. Moreover, an axle
101a is disposed in the recess 101 for supporting a movable strike
arm 60. One end of the strike arm 60 forms a hook portion 60a that
can be hooked with a hook 70a of a shaft 70. The shaft 70 is
disposed in the shaft slot 102. A front end of the shaft 70 defines
a hole that receives a protruding pin 30a of the trigger 30 such
that the shaft 70 can be moved by the trigger 30. The tension
spring 20 resists against a bottom surface of the shaft 70.
[0022] Referring to FIGS. 3 and 4, the gas-pressure device 80
includes a valve cock unit 801 centrally defining a valve hole 802
and a recessed portion 803 in an interior of the valve cock unit
801. The valve hole 802 is used to receive a resilient valve ball
90. The recessed portion 803 is used to receive a tubular ball
retainer 91. A recessed portion 901 at a rear end of the tubular
ball retainer 91 abuts against the resilient valve ball 90 to
position the valve ball 90. A high-pressure gas bottle 92 is
disposed in a latch bracket 93. By inserting protrusions 93a of the
latch bracket 93 into latch rails 801a of the valve cock unit 801
and rotating the latch bracket 93 relative to the valve cock unit
801, the latch bracket 93 can be positioned relative to the valve
cock unit 801. The tubular ball retainer 91 includes a plate
bracket 911 abutting against a front end of the latch bracket 93 so
as to position the high-pressure gas bottle 92 in place. In
addition, the valve cock unit 801 includes a plurality of gun latch
rails 801b behind the latch rails 801a.
[0023] Referring to FIGS. 5 and 6, the recessed disk 95 is
connected with an inner tube 96a of a gun tube 96. A plurality of
spaced tabs 95a is arranged along an outer periphery of the
recessed disk 95.
[0024] Referring to FIGS. 7 and 8, the gun tube 96 is connected
with the gas-pressure device 80. The protruding blocks 103a of the
barrel gas chamber 103 of the actuation gun 10 are inserted into
the gun latch rails 801b of the valve cock unit 801 respectively,
and the valve cock unit 801 is rotated and thus positioned relative
to the actuation gun 10.
[0025] Referring to FIG. 9, the trigger 30 is pushed by an
operator's finger to move the shaft 70, which in turn moves the
hook portion 60a of the movable strike arm 60 via the engaging of
the hook 70a with the hook portion 60a. Referring to FIG. 10, the
movable strike arm 60 is moved to push the strike pin 40 to move to
pierce the high-pressure gas bottle 92. At the moment of the strike
pin 40 piercing the high-pressure gas bottle 92, the hook portion
60a of the movable strike arm 60 is disengaged from the hook 70a of
the shaft 70. At the same time, the strike pin 40 is retracted to
its original position under the rebounding force of the spring 40a,
which in turn pushes the movable strike arm 60 back to its original
position. The high pressure within the gas bottle 92 is thus
released with the gas entering the tubular ball retainer 91 of the
valve cock unit 801 via the gas chamber 103 and the gun handle
internal chamber 104. Due to blocking of the resilient ball 90, the
gas pressure cannot be released. The gas is thus accumulated so
that the gas pressure is increased to approach a maximum level that
the resilient ball 90 can stand. Under this situation, the
resilient ball 90 is gradually deformed and forced out of the valve
hole 802 to abut against the recessed disk 95. A highly pressurized
flow thus rushes out in a very short time, via spacings of the tabs
95a of the recessed disk 95, entering the gun tube 96 for
shooting.
[0026] In addition, referring to FIG. 9, as the trigger 30 is
released, the trigger 30 will be moved back to its original
position under the rebounding force of the spring of the trigger
30, which at the same time in turn drives the shaft 70 back to its
original position. A rear portion of the hook 70a of the shaft 70
pushes a rear portion of the hook portion 60a of the movable strike
arm 60 such that the movable strike arm 60 is moved with the hook
portion 60a being hooked with the hook 70a of the shaft 70.
[0027] In the above construction, the size of the valve hole 802 of
the valve cock unit 801 and the resiliency of the resilient ball 90
may affect the amount of the increased pressure of the accumulated
gas. Therefore, resilient balls 90 of different resiliencies may be
prepared to be selectively used to form different gas pressure
levels (e.g., pressure levels like 30, 40, or 60 Kg/cm2 or the
like).
[0028] It will be apparent to those skilled in the art that various
modifications and variations can be made to the structure of the
present invention without departing from the scope or spirit of the
invention. In view of the foregoing, it is intended that the
present invention cover modifications and variations of this
invention provided they fall within the scope of the following
claims and their equivalents.
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