KR200295448Y1 - Pumping device of air gun - Google Patents

Abstract

The purpose of this paper is to improve the performance of the air gun. It is equipped with the first pump and the second pump operated by the motor in the head of the air gun to operate the motor with the built-in battery and the pressure switch and the pressure control valve. Compressed air to the air gun by the pump to fire a bullet, so you do not have to carry a separate air injection device or auxiliary tank, so you can easily carry the gun and maintain a constant pressure is a very useful design that can increase the accuracy accuracy .

Description

Pumping apparatus of air guns {omitted}

In order to improve the performance of the air gun in this paper, a small motor-operated air compression pump is installed in the head of the air gun, and the motor is operated by the built-in battery to store the compressed air from the compression pump in the compression tank of the air gun. It is equipped with a control valve and a pressure switch to automatically maintain a constant pressure. The conventional air gun is equipped with a large-capacity compression tank in the gun, and a separate auxiliary air tank is carried to supplement the air exhaust, but it is very inconvenient to carry. And the air pressure is not constant, so it is inconvenient to use.

Because of the above problems, it is necessary to develop an air gun that can carry bullets at a constant pressure at all times while simply carrying an air gun without a separate compression pump or auxiliary tank.

Figure 1 is a cross-sectional view of this draft

Figure 2 is a partial plan view of this draft

Figure 3 shows the operation of this paper

Figure 4 shows the operation of this paper

※ Explanation of main parts of drawing

1: Butt 2: Motor 3: Cam

3 ': Camshaft 3 ": Camhole 4: Pump 1

4 ': 1st valve 5: 2nd pump 5': 2nd valve

6: 1st piston 6 ': Link 6 ": Pin

7: No. 2 piston 8: Pressure switch 9: Storage battery

10: pressure control valve 11: piping 11 ': discharge pipe

12 electric wire 13 compression tank 14 discharge valve

15: bullet 16: trigger 17: barrel

18: support plate

FIG. 1 is a cross-sectional view of the present invention, in which a cam 3 having a perforated cam hole 3 " is attached to the motor 2, and fixed to the support plate 18, and the first piston 6 is placed on the right side of the motor 2. The built-in No. 1 pump (4) is fixed, and the No. 2 piston (7) with a smaller outer diameter than the No. 1 piston (6) is fixed on the left side to both pistons (6) (7). Each of the links 6 'is fitted with a pin 6 ", and the ends of both links 6' are inserted into the cam shaft 3 'to fix the cam shaft 3' to the cam hole 3". The exhaust port of the second pump 5 and the inlet port of the second pump 5 are connected to the pipe 11 in the butt 1, and the exhaust port of the second pump 5 and the compression tank 13 are discharged to the discharge pipe 11 '. The pressure switch 8 is attached in the middle of the discharge pipe 11 'to connect the battery 9 and the motor 2 embedded in the butt 1 with the wires 12, and the pressure is adjusted at the rear of the pressure tank 13. It is constructed by attaching the valve 10.

4 'is the 1st valve, 5' is the 2nd valve, 14 is the discharge valve, 15 is the barrel, 16 is the trigger, 17 is the barrel.

2 is a partial plan view of the present invention, the cam 3 is attached to the shaft of the motor 2, and the first piston 6 of the first pump 4 on the right side and the second piston of the second pump 5 on the left side ( 7) links 6 'are connected to pins 6 " so that the ends of each link 6' are overlaid on the camshaft 3 'and secured to the cam 3, respectively. It shows that the intermediate part protrudes with the unevenness, and is installed in the butt 1 so that the motor 2 is inserted in the groove.

Reference numeral 3 "is a cam hole.

3 is an operation diagram of the present design, the motor 2 rotates, the cam 3 rotates, and the first piston 6 compresses air to push the pump 5 through the pipe 11 to the second pump 5 The piston (7) is shown to intake air and move in reverse to the number one piston (6).

4 is an operation diagram of the present invention, the motor 2 is continuously rotated so that the cam 3 is located at the 3rd and 180 degrees positions, the piston 1 is retracted, the air is sucked in, and the piston 2 is compressed. It shows that the compressed air to the compression tank 13 through the discharge pipe (11 ').

The operation and effects of the present proposal are as follows.

When the motor 2 is rotated by the built-in battery 9, the link 6 ′ connected to the cam 3 by a pin 6 ″ moves along the circle of the cam 3, and the piston 6, 7. Compressed air from pump 1 (4) and pumped to pump 2 (5) is compressed to high pressure in pump 2 (5) less than the diameter of pump 1 (4) and discharge pipe (11 ') The pressure switch 8 attached to the) is automatically cut off when the pressure is full and the pressure control valve 10 is to release the air automatically when a certain pressure is exceeded when the pressure switch 8 is broken, thereby compressing the air gun. Because there are few tanks, it saves weight and cost and does not have to carry a separate air injection tank, so it can be hunted conveniently and can maintain constant pressure at all times.

Claims (1)

In a conventional pneumatic gun equipped with a barrel, a barrel, a trigger, and a butt in the engine part, a cam 3 is attached to the motor 2 in the butt 1 of the air gun, and the first pump 4 and the first. A second pump (5) having a smaller inner diameter than the pump (4) attaches a link (6 ') to each of the pistons (6) and (7) so that the two links (6') are attached to the cam (3) on the cam shaft (3 '). The pressure switch 8 and the pressure control valve 10 are installed by the device fixed to the rotating device, and the storage battery 9 is built in and connected to the pressure switch 8 and the motor 2 by wires 11. Pump device of air gun