US20060169265A1

US20060169265A1 - Shooting structure of a paint bullet gun

Info

Publication number: US20060169265A1
Application number: US11/048,818
Authority: US
Inventors: Bao Lai
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-03
Filing date: 2005-02-03
Publication date: 2006-08-03

Abstract

A shooting structure of a paint bullet gun, including a body section and a handle. A gunlock and a shot control unit are disposed in the body section. An air source serves to fill air into the body section. A trigger unit is disposed in the handle for controlling the shot control unit which controls the gunlock to reciprocally move. An activating chamber is formed in the body section. The gunlock is slidably disposed in the activating chamber. The activating chamber has an intake passage communicating with the air source. A space is defined between the bar body and inner wall of the activating chamber. The space is movable along with the gunlock to be aligned with the intake passage. The gunlock is formed with an internal shooting air reserving room and more than one exhaust passage communicating therewith. The shooting air reserving room has several intakes communicating with the space. A controlling valve is disposed between the exhaust passage and the shooting air reserving room. The controlling valve is movable along with the gunlock to control communication between the shooting air reserving room and the exhaust passage.

Description

BACKGROUND OF THE INVENTION

The present invention is related to a shooting structure of a paint bullet gun. In the paint bullet gun, a gunlock is controlled to reciprocally move for shooting the paint bullet. A certain amount of compressed air is reserved in a shooting air reserving room of the gunlock and then the air is released for shooting the paint bullet.
The existent paint bullet gun has a mechanical type of trigger unit for controlling a striker and a gunlock for shooting a paint bullet. Referring to FIG. 5, the paint bullet gun 6 has a body section 60 formed with an upper activating chamber 61 and a lower activating chamber 62 in parallel to each other. A vent 601 is formed between the upper and lower activating chambers 61, 62. The body section 60 has an intake section 602 for guiding high-pressure air into the upper and lower activating chambers 61, 62 as power source. A bullet-loading section 603 is disposed on the body section 60 for loading a paint bullet into the upper activating chamber 61. A barrel 604 is connected with one end of the upper activating chamber 61 near the bullet-loading section 603. A gunlock 63 is slidably disposed at the other end of the upper activating chamber 61.
A valve assembly 64 is disposed in the lower activating chamber 62 corresponding to the vent 601. A rear plug body 65 is disposed at one end of the lower activating chamber 62 distal from the intake section 602. A striker 66 is slidably disposed between in the lower activating chamber 62 between the valve assembly 64 and the rear plug body 65. The body section 60 is formed with a communicating tunnel 605 between the upper and lower activating chambers 61, 62 corresponding to the striker 66 and the gunlock 63. A pin 607 is passed through the communicating tunnel 605 to drivingly connect the striker 66 with the gunlock 63.
A handle 68 is disposed under the body section 60 near the lower activating chamber 62. A trigger unit 69 is disposed in the handle 68 corresponding to the striker 66. The trigger unit 69 serves to locate and release the striker 66. A push spring 661 is disposed between the striker 66 and the rear plug body 65. When the trigger unit 69 releases the striker 66, the push spring 661 pushes the striker 66 to drive and slide the gunlock 63 for blocking the bullet-loading section 603 so as to avoid leakage of air. Also, it is prevented that a second paint bullet drops into the upper activating chamber 61 so that clog is avoided. Furthermore, the striker 66 triggers the valve assembly 64, permitting high-pressure air to enter the upper and lower activating chambers 61, 62 for shooting the paint bullet out of the barrel 604. Part of the high-pressure air will pass through the valve assembly 64 to push and restore the striker 66 back to its home position where the striker 66 is located by the trigger unit 69.
In the above structure, the trigger unit 69 serves to chuck or release the striker 66 for driving the gunlock 63 and controlling opening/closing of the valve assembly 64. Therefore, it is necessary to respectively arrange the gunlock 63 for unblocking/blocking the bullet-loading section 603 and the striker 66 for controlling the high-pressure air. Moreover, it is necessary to arrange the valve assembly 64 for controlling the air and the push spring 661 and the pin 607. Accordingly, the structure of the paint bullet gun is complicated. This leads to high processing and assembling cost. In addition, the structure includes numerous components so that the ratio of failure of the paint bullet gun is increased.

SUMMARY OF THE INVENTION

It is therefore a primary object of the present invention to provide a shooting structure of a paint bullet gun. In the paint bullet gun, a gunlock is controlled to reciprocally move for shooting the paint bullet. A certain amount of air is reserved in a shooting air reserving room of the gunlock and then the air is sent into the gunlock for shooting the paint bullet. Only one single gunlock is used to unblock/block the bullet-dropping port and control the intake of the air going into the air duct for shooting the paint bullet. The structure of the present invention is simplified so that the ratio of failure of the paint bullet gun is reduced. Also, the manufacturing cost for the paint bullet gun is greatly lowered.
According to the above object, the shooting structure of the paint bullet gun of the present invention includes a body section and a handle. A gunlock and a shot control unit are disposed in the body section. An air source serves to fill air into the body section. A trigger unit is disposed in the handle for controlling the shot control unit which controls the gunlock to reciprocally move, whereby a paint bullet can be controllably dropped into the body section and the air of the air source can be controlled to shoot the paint bullet.
An activating chamber is formed in the body section. One end of the activating chamber is connected with a barrel. The gunlock is slidably disposed in the activating chamber. A bullet-dropping port is disposed on the activating chamber near the barrel. The activating chamber has an intake passage communicating with the air source.
The gunlock is a bar body. A space is defined between the bar body and inner wall of the activating chamber. The space is movable along with the gunlock to be aligned with the intake passage. The gunlock is formed with an internal shooting air reserving room for reserving a certain amount of air and more than one exhaust passage communicating with the shooting air reserving room. The shooting air reserving room has several intakes communicating with the space. The exhaust passage passes through the gunlock to an end thereof. A controlling valve is disposed between the exhaust passage and the shooting air reserving room. The controlling valve is movable along with the gunlock to control communication between the shooting air reserving room and the exhaust passage.
The present invention can be best understood through the following description and accompanying drawings wherein:

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a sectional assembled view of the present invention;
FIG. 1A is a partially sectional view taken along line A-A of FIG. 1, showing the communication between the air reservoir and the activating chamber;
FIG. 1B is a partially sectional view taken along line B-B of FIG. 1, showing the communication between the air reservoir and the passage;
FIG. 2 is a sectional view showing the shooting operation of the present invention in a first stage;
FIG. 3 is a sectional view showing the shooting operation of the present invention in a second stage;
FIG. 4 is a sectional view showing the shooting operation of the present invention in a third stage; and
FIG. 5 is a sectional view of a conventional mechanical paint bullet gun.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Please refer to FIGS. 1 to 1B. The shooting structure of the paint bullet gun of the present invention includes a body section 1 and a handle 17. An activating chamber 11 and more than one air reservoir 12 are parallelly arranged in the body section 1. In this embodiment, two air reservoirs 12 are respectively parallelly disposed on two sides of the activating chamber 11 of the body section 1.
One end of the activating chamber 11 is connected with a barrel 13. A gunlock 2 is accommodated in the other end of the activating chamber 11. A bullet-dropping port 111 is disposed on the activating chamber 11 near the barrel 13, whereby a paint bullet 5 can be dropped and loaded into the activating chamber 11. An intake passage 15 is formed between the activating chamber 11 and the air reservoir 12 to communicate the activating chamber 11 with the air reservoir 12. A handle pressure regulator 121 is disposed under front section of the air reservoir 12 for adjusting the pressure coming from an air source into the air reservoir 12. In addition, a shot control unit 3 is disposed in the body section 1 for driving the gunlock 2 to move back and forth.
The gunlock 2 is a bar body. An annular groove 21 is formed on the body of the gunlock 2. A space 21 a is defined between the annular groove 21 and inner wall of the activating chamber 11. The space 21 a is movable along with the gunlock 2 to be aligned with the intake passage 15, whereby the air can go from the air reservoir 12 into the space 21 a. The gunlock 2 is formed with an internal shooting air reserving room 22 for reserving a certain amount of air and more than one exhaust passage 23 communicating with the shooting air reserving room 22. The shooting air reserving room 22 has several intakes 221 communicating with the space 21 a, whereby the air entering the space 21 a can go into the shooting air reserving room 22 to be reserved therein. The exhaust passage 23 passes through the gunlock 2 to an end thereof. A controlling valve 24 is disposed between the exhaust passage 23 and the shooting air reserving room 22. The controlling valve 24 is movable along with the gunlock 2 to control communication between the shooting air reserving room 22 and the exhaust passage 23.
In this embodiment, the gunlock 2 has a large diameter section 25 and a small diameter section 26. The annular groove 21 is formed on outer circumference of the large diameter section 25. The shooting air reserving room 22 is formed in the large diameter section 25. The small diameter section 26 is formed with an internal tunnel 261. One end of the tunnel 261 extends to one end of the small diameter section 26 opposite to the large diameter section 25. The other end of the tunnel 261 extends to a solid section 262 at the other end of the small diameter section 26 adjacent to the large diameter section 26. The controlling valve 24 is disposed in the solid section 262. The controlling valve 24 has a valve rod 241 extending through the solid section 262. One end of the valve rod 241 extends into the tunnel 261 of the small diameter section 26. The other end of the valve rod 241 extends into the shooting air reserving room 22 of the large diameter section 25. The solid section 262 is formed with several exhaust passages 23 around the valve rod 241. Two ends of each exhaust passage 23 respectively communicate with the tunnel 261 and the shooting air reserving room 22. The air in the shooting air reserving room 22 can go through the exhaust passage 23 into the tunnel 261. A plug body 242 is fixed at one end of the valve rod 241 in the shooting air reserving room 22. The plug body 242 is pushed by a spring 243, whereby in normal state, the plug body 242 blocks the exhaust passages 23. Two cuts 263 are respectively formed on two sides of the tunnel 261 in parallel to the valve rod 241. A touch rod 264 is transversely positioned in the cuts 263. Two ends of the touch rod 264 are fixed on the inner wall of the activating chamber 11. Several O-rings 27 are inlaid in outer circumference of the large diameter section 25 of the gunlock 2 to airtight abut against inner wall of the activating chamber 11 for avoiding leakage of air.
The handle 17 is arranged near the handle pressure regulator 121. A trigger unit 18 is disposed in the handle 17 corresponding to the shot control unit 3 for controlling the same. In this embodiment, the trigger unit 18 includes a trigger 181, a linking plate 182 and a spring 183. The trigger 181 can drive the linking plate 182 to control the shot control unit 3.
The shot control unit 3 has a valve body 30 and a piston body 40. In this embodiment, the body section 1 is formed with a passage 19 between the activating chamber 11 and the air reservoir 12 in parallel thereto. The valve body 30 and the linking plate 182 are accommodated in the passage 19. The valve body 30 is formed with an internal cavity 32 in which a shift bar 31 is mounted. A middle section of the valve body 30 is formed with several cuts 34 communicating with the cavity 32. The air reservoir 12 is formed with an air duct 122 communicating with the cuts 34, whereby part of the air in the air reservoir 12 can enter the cavity 32. Two ends of the cavity 32 are respectively formed with a first ventiduct 33 and a second ventiduct 35 communicating with the interior of the piston body 40. The shift bar 31 is formed with a first plug section 311 and a second plug section 312 respectively corresponding to the first and second ventiducts 33, 35. One end of the shift bar 31 is connected with the linking plate 182 of the trigger unit 18. The trigger 181 of the trigger unit 18 can drive the shift bar 31 to reciprocally move within the cavity 32, whereby the first plug section 311 or the second plug section 312 unblocks/blocks the first ventiduct 33 or second ventiduct 35. Accordingly, the air in the air reservoir 12 is controllable to enter the piston body 40, making the piston body 40 drive the gunlock 2 to reciprocally move.
The piston body 40 is fixed at one end of the activating chamber 11 of the body section 1 opposite to the barrel 13. A rear plug body 16 seals the activating chamber 11. The piston body 40 is formed with an internal receiving passage 41 in which a piston rod 42 with a piston block 421 is accommodated. A front end and a rear end of the receiving passage 41 respectively communicate with the first and second ventiducts 33, 35 of the valve body 30. One end of the piston rod 42 opposite to the piston block 421 is connected with the gunlock 2. By means of controlling intake of the first ventiduct 33 or second ventiduct 35 of the valve body 30, the piston rod 42 is controllable to move forward or backward. Accordingly, the gunlock 2 is drivable to move back and forth.
In normal state, that is, a ready state, as shown in FIG. 2, the shift bar 31 of the valve body 30 of the shot control unit 3 is controlled by the trigger unit 18 to move backward. At this time, the first plug section 311 of the shift bar 31 unblocks the first ventiduct 33 of the cavity 32, while the second plug section 312 of the shift bar 31 blocks the second ventiduct 35 of the cavity 32. After the air of the air source goes through the handle pressure regulator 121 into the air reservoir 12, part of the air will go through the air duct 122 and the cuts 34 into the cavity 32 and then go through the unblocked first ventiduct 33 into the receiving passage 41 of the piston body 40 for pushing and retreating the piston block 421 of the piston rod 42. At this time, the piston rod 42 will drive the gunlock 2 to retreat, whereby front end of the gunlock 2 will move backward away from the bullet-dropping port 111. Under such circumstance, a paint bullet 5 is dropped to the front end of the gunlock 2 into a ready state. At the same time, the space 21 a defined between the annular groove 21 of the gunlock 2 and the inner wall of the activating chamber 11 will be moved along with the gunlock 2 to the intake passage 15, whereby the air in the air reservoir 12 will go through the intake passage 15 into the space 21 a and then go through the intake 221 into the shooting air reserving room 22 for shooting the paint bullet 5.
When pulling the trigger 181, as shown in FIGS. 3 and 4, the trigger 181 drives the linking plate 182 to pull the shift bar 31 in the valve body 30 forward. At this time, the first plug section 311 of the shift bar 31 blocks the first ventiduct 33 of the cavity 32, while the second plug section 312 of the shift bar 31 unblocks the second ventiduct 35 of the cavity 32. At this time, the air goes through the unblocked second ventiduct 35 into the receiving passage 41 of the piston body 40 to push the piston block 421 of the piston rod 42 forward. Accordingly, the gunlock 2 is driven by the piston rod 42 to move forward, whereby the front end of the gunlock 2 blocks the bullet-dropping port 111 to avoid leakage of air and prevent a second paint bullet 5 from dropping so as to avoid clog. When the gunlock 2 moves forward, the space 21 a will be moved along with the gunlock 2 away from the intake passage 15, whereby the air in the air reservoir 12 is prevented from further going into the shooting air reserving room 22. Therefore, a certain amount of air is kept in the shooting air reserving room 22. At this time, the controlling valve 24 will be moved forward along with the gunlock 2, making the valve rod 241 collide the touch rod 264 to drive and displace the plug body 242. At this time, the exhaust passage 23 is unblocked and the certain amount of air reserved in the shooting air reserving room 22 will go through the exhaust passage 23 into the tunnel 261 of the small diameter section 26 of the gunlock 2 to shoot the paint bullet 5 at front end of the gunlock 2. The capacity of the air reserved in the shooting air reserving room 22 has been calculated so that the speed of the shot paint bullet 5 is controllable as required.
After shooting the paint bullet 5, the trigger 181 is released. The spring 183 resiliently drives the linking plate 182 backward. Accordingly, the shift bar 31 of the valve body 30 is moved backward and restored to the original ready state for next shooting.
According to the above arrangement, by means of moving the gunlock, a certain amount of air is reserved in the shooting air reserving room. The air is then sent into the gunlock for shooting the paint bullet. Only one single gunlock is used to unblock/block the bullet-dropping port and control the intake of the air going into the air duct for shooting the paint bullet. The structure of the present invention is simplified so that the ratio of failure of the paint bullet gun is reduced. Also, the manufacturing cost for the paint bullet gun is greatly lowered.
The above embodiment is only used to illustrate the present invention, not intended to limit the scope thereof. Many modifications of the above embodiment can be made without departing from the spirit of the present invention.

Claims

1. A shooting structure of a paint bullet gun, comprising a body section and a handle, a gunlock and a shot control unit being disposed in the body section, an air source serving to fill air into the body section, a trigger unit being disposed in the handle for controlling the shot control unit which controls the gunlock to reciprocally move, whereby a paint bullet can be controllably dropped into the body section and the air of the air source can be controlled to shoot the paint bullet, said shooting structure being characterized in that:

an activating chamber is formed in the body section, one end of the activating chamber being connected with a barrel, the gunlock being slidably disposed in the activating chamber, a bullet-dropping port being disposed on the activating chamber near the barrel, the activating chamber having an intake passage communicating with the air source; and

the gunlock is a bar body, a space being defined between the bar body and inner wall of the activating chamber, the space being movable along with the gunlock to be aligned with the intake passage, the gunlock being formed with an internal shooting air reserving room for reserving a certain amount of air and more than one exhaust passage communicating with the shooting air reserving room, the shooting air reserving room having several intakes communicating with the space, the exhaust passage passing through the gunlock to an end thereof, a controlling valve being disposed between the exhaust passage and the shooting air reserving room, the controlling valve being movable along with the gunlock to control communication between the shooting air reserving room and the exhaust passage.

2. The shooting structure of the paint bullet gun as claimed in claim 1, wherein two air reservoirs are respectively parallelly disposed on two sides of the activating chamber of the body section, a front section of the air reservoir near the barrel communicating with a handle pressure regulator for adjusting the pressure coming from the air source into the air reservoir, the intake passage communicating the activating chamber with the air reservoir, the handle being arranged under the body section near the handle pressure regulator, the trigger unit being disposed in the handle corresponding to the shot control unit, the trigger unit including a trigger, a linking plate and a spring, whereby the trigger can drive the linking plate to control the shot control unit.

3. The shooting structure of the paint bullet gun as claimed in claim 2, wherein the shot control unit has a valve body and a piston body, the body section being formed with a passage between the activating chamber and the air reservoir in parallel thereto, the valve body and the linking plate being accommodated in the passage, the piston body being fixed at one end of the activating chamber of the body section opposite to the barrel, a rear plug body sealing the activating chamber.

4. The shooting structure of the paint bullet gun as claimed in claim 3, wherein the valve body is formed with an internal cavity in which a shift bar is mounted, a middle section of the valve body being formed with several cuts communicating with the cavity, at least one air reservoir being formed with an air duct communicating with the cuts, whereby part of the air in the air reservoir can enter the cavity, two ends of the cavity being respectively formed with a first ventiduct and a second ventiduct communicating with the interior of the piston body, the shift bar being formed with a first plug section and a second plug section respectively corresponding to the first and second ventiducts, one end of the shift bar being connected with the linking plate of the trigger unit, the trigger of the trigger unit being able to drive the shift bar to reciprocally move within the cavity, whereby the first plug section or the second plug section unblocks/blocks the first ventiduct or second ventiduct, the piston body being formed with an internal receiving passage in which a piston rod with a piston block is accommodated, a front end and a rear end of the receiving passage respectively communicating with the first and second ventiducts of the valve body, one end of the piston rod opposite to the piston block being connected with the gunlock.

5. The shooting structure of the paint bullet gun as claimed in claim 1, wherein an annular groove is formed on the body of the gunlock, the space being defined between the annular groove and inner wall of the activating chamber, the gunlock having a large diameter section and a small diameter section, the annular groove being formed on outer circumference of the large diameter section, the shooting air reserving room being formed in the large diameter section, the small diameter section being formed with an internal tunnel, one end of the tunnel extending to one end of the small diameter section opposite to the large diameter section, the other end of the tunnel extending to a solid section at the other end of the small diameter section adjacent to the large diameter section, the controlling valve being disposed in the solid section, the controlling valve having a valve rod extending through the solid section, one end of the valve rod extending into the tunnel of the small diameter section, the other end of the valve rod extending into the shooting air reserving room of the large diameter section, the solid section being formed with several exhaust passages around the valve rod, two ends of each exhaust passage respectively communicating with the tunnel and the shooting air reserving room, whereby the air in the shooting air reserving room can go through the exhaust passage into the tunnel, a plug body being fixed at one end of the valve rod in the shooting air reserving room, the plug body being pushed by a spring, whereby in normal state, the plug body blocks the exhaust passages, two cuts being respectively formed on two sides of the tunnel in parallel to the valve rod, a touch rod being transversely positioned in the cuts, two ends of the touch rod being fixed on the inner wall of the activating chamber.

6. The shooting structure of the paint bullet gun as claimed in claim 5, wherein several O-rings are inlaid in outer circumference of the large diameter section of the gunlock on two sides of the annular groove to airtight abut against inner wall of the activating chamber for avoiding leakage of air.