RU2691465C1 - Pneumatic cylinder - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to airgun. Pneumatic cylinder consists of bodies of front, middle and rear, inside which there is stock-piston, bolt-stop, rod, return spring, gas chamber is preliminary, shots, front shot chamber, gate, gas supply channels, sealing elements. Gas supply is performed at opening of electromagnetic valve controlled by electronic board.

EFFECT: improved design, longer life of pneumatic weapon.

1 cl, 1 dwg

Description

The claimed invention relates to pneumatic cylinders intended for installation in drives (a copy model of a rifle) for airsoft / paintball.

Nowadays, electro-pneumatic airsoft drives with a cylinder that contains a piston compressed by a spring are widely distributed, and the cylinder operates when there is contact with a gear system rotating from an electric motor. Food in this case is carried out from batteries or rechargeable batteries (for example, http://airsoftsports.ru/catalog/brand/tokyo-marui/ - products of Tokyo Marui, “RF Patent No. 118734, 07/27/2012). Disadvantages are the need to use cylinder designs for well-defined types of gearboxes, the complexity of the automation design, due to which cylinder operation occurs, also a small battery capacity, which may not be enough for a long game, the possibility of jamming at low temperatures and, in general, the sensitivity of the entire drive to the environmental parameters, which indicates a lack of reliability of the design of the cylinder with the electro-pneumatic principle m working.

The use of a cylinder of mechanical (pneumatic) type is also common for airsoft games. However, the common drawbacks of the known analogues are the need for a manual platoon after each shot, which leads to a low rate of fire, as well as low power and accuracy of shooting.

Known design of the air rifle cylinder (RF patent №2038566, 27.06.1995), adopted for the closest analogue to the claimed solution, comprising a cylinder body, a rod, a stem, a spring, a biasing rod, a system of channels for charging bullets.

The specified pneumatic cylinder does not contain electronic components, which simplifies the design, reduces the cost of manufacture and use of sports weapons. However, the cylinder body consists of two parts, which makes the time-consuming process of lubricating its inner surface and can lead to jamming during operation. Cylinder malfunctions are also possible at low ambient temperatures. The cylinder rod has no elements that compensate for shocks and friction during shots, which leads to more rapid wear of the cylinder and, in general, indicates a lack of reliability of the specified solution. In addition, the considered design of a rifle can only be made in the form of a monoblock, that is, a single cylinder with a valve that provides a shot, which limits its functionality. Also, the specified device does not have the ability to adjust the speed of the ball.

The objective of the claimed invention to provide a universal design of a pneumatic cylinder for airsoft / paintball, which ensures economical and long-term operation of the cylinder through the economical use of gas.

FIG. 1 shows the following positions of assemblies and parts of the pneumatic cylinder:

pos. 1 - rear cylinder body;

pos. 2 - the case of the middle cylinder;

pos. 3 - the case of the front cylinder;

pos. 4 - cylinder of stepped diameter (rod)

pos. 5 - cylinder of stepped diameter (nozzle);

pos. 6 - cylinder of stepped diameter (boltstop);

pos. 7 - return spring;

pos. 8 - gas outlet channel;

pos. 9 — gas passage channel to the front shot chamber;

pos. 10 - main gas supply channel;

pos. 11 - gas supply channel to the solenoid valve;

pos. 12 - gas supply channel to the shutter chamber;

pos. 13 - shutter;

pos. 14 - camera shot;

pos. 15 - atmospheric pressure chamber;

pos. 16 - a sealing ring;

pos. 17 - pre-camera;

pos. 18 - the average channel of gas passage;

pos. D - inner diameter of the rear cylinder;

pos. D1 is the outer diameter of the stepped cylinder (rod);

pos. D2 - external smaller diameter of stepped cyl, ndra (rod);

pos. D3 - inner diameter of the stepped cylinder (boltstop)

The stated objective is achieved by using a pneumatic cylinder with a solenoid valve (solenoid) and an electronic control circuit board comprising a front cylinder body (3 pos. Fig. 1), a middle cylinder body (3 pos. Fig. 1), a rear cylinder body (pos 1 Fig. 1), butt (pos. 5 fig. 1), return spring (pos. 7 fig. 1), rod (pos. 4 fig. 1), boltstop (pos. 6 fig. 1), gas outlet channel ( position 8 of Fig. 1), the gas passage channel in the front chamber of the shot (position 9 of Fig. 1), the middle gas passage channel (position 18 of Fig. 1), the main gas supply channel (position 10 of Fig. 1),gas supply channel to the solenoid valve (pos. 11 of fig. 1), gas supply channel to the shutter chamber (pos. 12 of fig. 1), shutter chamber (pos. 13 of fig. 1), shot chamber (pos. 14 of fig. 1 ), atmospheric pressure chamber (pos. 15, fig. 1), sealing ring (pos. 16, fig. 1), preliminary chamber (pos. 17, fig. 1), while supplying gas (compressed air, nitrogen) to the channel ( POS. 10 of Fig. 1), the gas through the channel (POS. 11 of FIG. 1) enters a universal solenoid valve (solenoid) of a universal type (normally open (BUT) or normally closed (NC)), as well as gas enters the pre-chamber (pos. 17 of Fig. 1), thus ensuring the system is ready for operation and waiting for a command from the solenoid control board.

At the same time, the inner diameter of the rear cylinder body (pos. D of Fig. 1) has a size range from 5-25 mm, the outer larger diameter of the stepped cylinder (rod) (pos. D1 Fig. 1) has a size range from 4-24 mm, the outer the smaller diameter of the stepped cylinder (rod) (pos. D2 of Fig. 1) has a size range from 3-23 mm, the inner larger diameter of the stepped cylinder (bolt-stop) (pos. D3 of Fig. 1) has a size range from 3.5-22.5 mm . At the same time, the experimentally selected ratio of the combination of external and internal diameters makes the operation of a pneumatic cylinder possible in different climatic conditions (heat, frost, rain or high humidity) reliable and trouble-free, which will lead to the least wear of the friction parts of the pneumatic cylinder, that is, providing its performance, which is reflected in the efficiency of the system itself.

The use of the solenoid NS has an advantage over the NO solenoid in that the system is without pressure in other nodes and there is no pressure on them. After receiving a command from the control board to actuate the solenoid, the gas enters the channel (pos. 12 of fig. 1) and moves the rod (pos. 4 of fig. 1), opening the channel for the passage of gas from the pre-chamber (pos. 17 of fig. 1) to the chamber the shot (pos. 14 of fig. 1), the rod (pos. 4 of fig. 1) locks the middle gas passage channel (pos. 18 of fig. 1), the gas from the shot chamber (pos. 14 of fig. 1) through the channel (pos. 9 of Fig. 1) moves the nozzle (pos. 5 of Fig. 1) squeezing the spring forward (pos. 7 of Fig. 1) and fills the front camera of the shot formed during the movement of the nozzle (pos. 5 of Fig. 1) after the electronic signal with fees control, the solenoid is actuated and the gas from the shutter chamber (pos. 13 of Fig. 1) is emitted into the atmosphere through the solenoid channel, since the rod (pos. 4 of Fig. 1) has different pressure areas, it starts to move backward, opening the passage of gas through The middle channel (pos. 18 of fig. 1) into the gas outlet channel (pos. 8 of fig. 1) while sealing inserts (pos. 16 of fig. 1) on the rod (pos. 4 of fig. 1) seal the pre-chamber (pos. 17 of FIG. 1), under the action of a spring (pos. 7 of Fig. 1), the nozzle (pos. 5 of Fig. 1) moves back to its original place.

The pneumatic cylinder presented for consideration has an advantage over other similar systems in that its principle of operation is based on working with a closed volume. That is, the gas that filled the chamber of the shot specified in the manufacture of the volume does not have parasitic leaks. That means economical use of gas, that is, economical operation of the cylinder.

This achieves the technical result of the claimed invention, which consists in obtaining a universal design of a pneumatic cylinder for airsoft / paintball, which allows to obtain a high efficiency of gas consumption, trouble-free operation of all nodes of a pneumatic cylinder, which together affects the economical gas consumption.

Claims (1)

Pneumatic cylinder, characterized by the fact that it includes a front cylinder body, a middle cylinder body, a rear cylinder body, nozzle, return spring, rod, bolt-stop, gas outlet channel, gas passage channel into the front shot chamber, middle gas passage channel, feed channel gas main, gas supply channel to the solenoid valve, gas supply channel to the shutter chamber, shutter chamber, shot chamber, atmospheric pressure chamber, sealing ring, pre-chamber, solenoid valve (solenoid) electronic control board, while when gas is supplied to the main gas supply channel, the gas enters the electromagnetic valve (solenoid) through the gas supply channel to the solenoid valve, and the gas enters the pre-chamber, which ensures that the system is ready for operation and the command waits from the control board solenoid.

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