SU779801A1 - Aphinogenov's pneumatic consumption free gun - Google Patents

Description

I

The invention relates to airguns, namely to an airgun-free rifle for underwater hunting.

A pneumatic non-expendable rifle is known, containing a body with a lid and a damper, a barrel with a piston concentrically mounted in the body, a receiver, a trigger mechanism with a sear fll.

The disadvantage of the device is the complexity of the design.

AND

A pneumatic zero-shot rifle containing a barrel is placed in it; it is a working one:: n | o ,,,, a receiver with a charging valve xirjfCKOBoe device with a trigger Kptoi | (o and a handle 2.

A disadvantage of the known device is the presence in the launch device of a significant number of friction surfaces, as a result of which a significant part of the work is spent on overcoming the forces of friction and leads to a decrease in the efficiency of the gun.

The purpose of the invention is to increase the efficiency of the gun.

This goal is achieved by the fact that the cavity of the receiver is provided with a partition with a channel connecting both parts of the cavity and an overlapping device that interacts with the trigger and an established fe partition, and in the breech of the cavity of the trunk, install a combat check valve with a locking element and actuator including a housing with a cylindrical cavity in which a housing is placed (1 piston with an actuated check valve installed 6 times, the piston being connected with a shielding element of a combat rfatny valve.

The drawing shows a schematic shotgun, oyai view.

Claims (2)

The shotgun contains a barrel 1 with a ramscheng 1M in it a working piston 2, a receiver 3 with a charging valve 4. The barrel cavity is separated from the receiver's cavity by a bouncy check valve 5 installed in the breech, with a locking element 6. Moreover, the combat check valve is open inside the barrel, rigidly connected with it is the i th 4p and the offset openings in the barrel and body of the combat check valve ffo ffioCti. the latter is connected to the receiver cavity. The receiver is divided by a partition 7 into two parts: a cavity 8 and a cavity 9. A channel 10 is made in the partition, connecting the cavities, and an overlapping device is installed, made in the form of a plunger 11 connected to the trigger hook 12 (spring 13). counteracts the extrusion of the plunger under the action of the initial pressure in the receiver. In the cavity 9 of the receiver, there is an actuator consisting of a piston 14GvMtb $ SHG {) and the final actuating check valve 15, a body with a cylindrical cavity, the trunk. The cavity 16 of the actuator, located between the end of the combat reverse TcrtattaHa and the piston 14, is sealed relative to the cavity 9 of the receiver. The piston 14 is connected by a shut-off element of the combat check valve, the shut-off element of the combat check valve and the shut-off element of the actuating check valve have a single operating spring 17 and are located on the same axis aligned with the axis of the barrel. The actuator on the barrel is rigidly secured in tulk 18, limiting the stroke and keeping the rubber damper shy 6 to 19. The gun works as follows. Air is pumped into the receiver 3 through the zaprr valve 4. To drive 1 and the gun k to the working piston 2 through a harpoon (not shown), a force is applied that moves the working piston 2 to stop in the combat check valve 5, while the air in the cavity of the barrel 1 is compressed to a pressure exceeding the pressure bar. In cavity 9 of rwssweaver 3, the booster valve 5 is opened and compressed air from the cavity of barrel 1 is squeezed out into cavity 8 (channel 10 is blocked). The pressure in the tk 9 Sta1) Ovits Shsho Pavvii bands. 8. When the pressure in cavity 9 increases, the executive valve 15 opens and the pressure in cavity 16 of the actuator becomes equal to the pressure in cavity 9 of the receiver. When the trigger 12 is pressed, the plunger 11 mixes down and opens the channel 10. The pressure in cavity 8 and 9 is equalized and becomes less than the pressure in cavity 9 before pressing the trigger 12, and the pressure in cavity 16 of the actuator becomes slightly greater than the average pressure of the cavities 8 and 9. This overpressure in the cavity 16 moves the piston 14, and it moves the shut-off element 6 of the combat check valve 5. The combat check valve 5 opens and lets the compressed air of the combined cavities of the receiver 3 flow through. Borehole 1. The working piston 2 makes a working stroke and throws a harpoon. The application of the present invention leads to an increase in the efficiency of the gun, an increase in its reliability, as well as to the simplification of its manufacture. Invention formula A pneumatic zero-shot gun containing a barrel, a working piston placed in it, a receiver with a charging valve, a trigger device with a trigger hook, a handle, characterized in that, in order to increase the efficiency of the gun, the cavity of the receiver is equipped with a partition with a channel connecting both parts of the cavity, and a shut-off device interacting with the trigger, and installed in the partition, and in the breech section of the cavity of the barrel a combat check valve with a locking element and actuator are installed A housing including a housing with a cylindrical cavity in which a piston is mounted with an actuating check valve installed therein, the piston being connected to a shut-off element of the combat check valve. Sources of information taken into account in the examination 1. USSR author's certificate number 255800, cl. R 41 In 11/08, 1968. 2. Sportsman-submariner, M., DOSAAF, 1974, no. 38, p. 43-47 (prototype).