RU2789336C1 - Dosed gas supply device - Google Patents

Abstract

FIELD: gas supply devices.

SUBSTANCE: device for dosed gas supply contains a housing, a nozzle, sealing elements. The rear end of the device housing is hermetically sealed, there is a control valve connected to a system of channels that communicate with the chamber near the nozzle and a channel that communicates with the chamber near the piston. The piston is made spring-loaded, there are holes for pressure relief in the chambers behind the sealing elements of the piston and nozzle.

EFFECT: increasing the feed rate and the accuracy of the dosage of a portion of gas when fired.

1 cl, 4 dwg

Description

The invention relates to small pneumatic weapons for games, in particular for playing airsoft.

A device for metered gas supply is known, described in the utility model patent of the Russian Federation No. 181513, publ. 07/17/2018, in which there is a body consisting of a front part, an accumulator and a rear part, a spring-loaded exhaust element, a main valve made in the form of a rod with a variable diameter, with sealing elements and damping elements installed on it, a gas supply channel, at the same time, the device contains a bypass valve, the gas supply channel is located in the bypass valve body, the end of the rear part of the device body is hermetically sealed.

The disadvantage of this solution is not enough fast and accurate operation of the system, which leads to low accuracy. The unreliability of the spring in the mechanism of the exhaust system will affect the stability and repeatability of the shot in terms of power.

The task to be solved by the claimed technical solution is the creation of a device that allows you to quickly and accurately supply gas for a shot.

The technical result consists in the use of an intermediate system of a piston and a spring.

The technical result is achieved by the fact that in the device for metered gas supply, containing a housing, a nozzle, sealing elements, and the end of the rear part of the device housing is hermetically sealed, there is a control valve connected to a system of channels that communicate with the chamber near the nozzle, and a channel that communicates with a chamber near the piston, while the piston is made spring-loaded, in addition, holes are made to relieve pressure in the chambers behind the sealing elements of the piston and nozzle.

The design of the proposed technical solution is shown in the drawings, where:

Fig. 1 shows a general view of the device for metered gas supply, the first position.

Fig. 2 shows a general view of the device for metered gas supply, the second position.

Fig. 3 shows a general view of the device for metered gas supply, the third position.

Fig. 4 shows a general view of the device for metered gas supply, the fourth position.

The claimed technical solution can be implemented in the design of a device for metered gas supply, including a housing 1, a nozzle 2, sealing elements 3, a sleeve 4, a valve 5, a system of channels 6, chambers 7, 8, 9, 10, 11, holes 12, 13, 14, 15, 16, 19, 20, piston 17, stump 18.

The metered gas supply device is designed and operates as follows.

In the first position, valve 5 is pressed, air enters chamber 9, through hole 16 into chamber 8 and starts to move piston 17, while air enters chamber 7 through holes 15 and 19 in piston 17 and fills it with a portion of air.

Air enters chamber 10 through hole 14 and, filling it, starts moving nozzle 2.

Holes 12, 13 serve to ensure that pressure is not created in chambers 8 and 10 behind the sealing rings of the nozzle 2 and piston 17, in order to ensure the correct and correct operation of the system as a whole.

Moving, the piston 17 hermetically closes the chamber 9 and compresses the return spring (second position). Thus, it gives out a certain portion of compressed air to chamber 7 and chamber 10. In this case, in fact, a certain, metered portion of air is supplied to nozzle 2.

In its forward extreme position, the nozzle 2 jumps off the hemp 18 and due to the chamfer in the nozzle 2 and the groove in the hemp, 18 portion of air enters the nozzle 2 and a shot occurs.

In chambers 7, 8, 10 the pressure becomes atmospheric. In this case, the chamber 9 is blocked by air pressure while the valve is open.

The channel system 6 is constantly under air pressure. When the valve 5 is pressed, due to the difference in volumes, the nozzle 2, when a portion of compressed air is supplied to the chamber 7 and chamber 10, overcoming the pressure in the channel system 6, moves forward, thereby sending the ball to fire.

After the shot in chambers 7, 8, 10, atmospheric pressure is formed and compressed air from the system of channels filling the chamber 11 returns the nozzle 2 to its rearmost position. Thereby providing access for sending a new ball for a shot. Third position.

The valve is released. Fourth position.

The opening 20 opens, the pressure from the chamber 9, which holds the piston closed, is released into the atmosphere.

Piston 17 returns to its rearmost position under the action of a spring.

When valve 5 is pressed, the cycle is repeated.

The sealed sleeve 4 allows you to adjust the piston stroke and the time for filling the chambers 7 and 8 with air, as a result, the portion of compressed air that will be issued by the nozzle for the shot.

All elements of the system are assembled through sealing rings (sealing elements 3) to give tightness in housing 1.

Thus, the application of the invention allows you to quickly and accurately supply the desired portion of the gas.

Claims (1)

A device for metered gas supply, containing a housing, a nozzle, sealing elements, and the end of the rear part of the device housing is hermetically sealed, characterized in that there is a control valve connected to a system of channels that communicate with the chamber near the nozzle, and a channel that communicates with the chamber near the nozzle. piston, while the piston is made spring-loaded, in addition, there are holes for pressure relief in the chambers behind the sealing elements of the piston and nozzle.

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