RU2249168C1 - Scatter-rifle with gasses withdrawal - Google Patents

Abstract

FIELD: auto-loading smoothbore rifles.

SUBSTANCE: the invention is pertinent to the field of scatter-rifles with gasses withdrawal, in particular, to the auto-loading smoothbore rifles. The scatter-rifles with gasses withdrawal contains a barrel, on which there is a cylinder with a reloading piston linked with a rod, a retracting spring, a gear to control pressure of the gases made in the form of a valve and a spring, an automatics switching-off safety valve having a bucket with two grooves. At that the mentioned piston is located inside the cylinder in front of the reloading piston with a capability of a longitudinal motion perpendicularly to the barrel. The invention allows to operate in an automatic mode using cartridges of different power and to readjust for a manual reloading.

EFFECT: the invention allows to operate in an automatic mode using cartridges of different power and to readjust for a manual reloading.

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Description

The invention relates to shotguns with exhaust gases, in particular to self-loading smoothbore weapons.

The known mechanism for adjusting the gas pressure of automatic weapons according to the patent of the Russian Federation No. 2164334, class. IPC 7 F 41 A 5/28, comprising a piston housing and a spring-loaded valve. With excess pressure in the body, the valve opens and excess gas is vented to the atmosphere. This embodiment allows the use of cartridges of various power. The disadvantage of this device is the lack of automatic shutdown, the transfer of weapons to manual reloading, which reduces the consumer properties of the product.

Known shotgun according to US patent N4,395,937, cl. 89-128, comprising a barrel, a cylinder with a reloading piston, a valve device for disabling automation, operating from moving the forend, where the valve device has a rotational movement and is placed in the cylinder.

The disadvantage of the described device is its large dimensions, which do not allow you to place the unit pressure relief when working with powerful cartridges, which reduces the versatility of the gun, that is, the lack of the ability to use cartridges of different power.

The objective of the present invention is to expand the versatility of the gun, which can work in automatic mode with different power cartridges and can be redeployed to manual reloading.

The problem is solved using a shotgun with the removal of gases containing the barrel, a cylinder with a reloading piston, a valve device for disabling automation, working from moving the forend, where the valve device is made in the form of a piston with two grooves located in the cylinder perpendicular to the barrel, in front of the reloading piston , with the possibility of longitudinal movement.

Placing the valve device perpendicular to the barrel, in the cylinder, in front of the reloading piston, with the possibility of its longitudinal movement makes it possible to preserve the known mechanism for adjusting the gas pressure of automatic weapons according to RF patent No. 2164334, which makes it possible to increase the consumer properties of the product, namely, along with use in automatic mode , cartridges of various power, makes it possible to transfer weapons from automatic mode to manual reload mode.

The invention is illustrated by drawings, where Fig. 1 shows a general view in the automatic mode position, Fig. 2 is a general view in the manual reload position, Fig. 3 is a section A-A of Fig. 1, Fig. 4 is a section B -B figure 2

A shotgun with a gas outlet contains a barrel 1, on which a cylinder 2 is located with a reloading piston 3 connected to the rod 4, a return spring 5, a gas pressure adjustment mechanism in the form of a valve 6 and spring 7, a valve device consisting of a piston 8 with two grooves 9 and belts 10. The piston 8 belts 10 has the ability to block the holes 11 made in the barrel 1 and cylinder 2, using the forearm 12 with bevels 13. Transfer from automatic mode to manual reloading is carried out using the lever 15 mounted on the axis 14 Verstov 16, spring-loaded by a spring 17 and clip 18 mounted in the piston 3 rechargeable.

The shotgun with exhaust gas works as follows:

In the automatic recharge mode, gas from the barrel 1 through the holes 11 (Fig. 3) and the groove 9 of the piston 8 passes to the reloading piston 3.

With a powerful cartridge, excess pressure moves valve 6 and excess gas is vented to the atmosphere. Valve 6 closes under the action of spring 7 and under the influence of gases the reloading piston 3 starts to move, which in turn moves the rod 4 backward (to the right in the drawing), and then due to the return spring 5, the reloading piston 3 returns to its original position, recharging occurs (ejected sleeve and a new cartridge is installed in the chamber). To switch the gun to manual reloading, it is necessary to press the lever 15 and move the forend 12 back (to the right in the drawing) and release the lever 15. At the same time, the lever 15 engages with the hole 18 with its hole 16. The forearm 12 is rigidly connected to the reloading piston 3. When moving the forearm 12, due to the bevels 13, the piston 8 is moved, which closes the holes 11 with its belts 10 and, when fired, the gases do not have the ability to enter the reloading piston 3. The gun is ready for manual reloading by moving the forearm 12 back, which displaces the reloading piston 3 with a thrust 4.

Claims (1)

A shotgun with a gas outlet, containing a barrel, a cylinder with a reloading piston, a valve device for disabling automation, having a piston and working from moving the forend, characterized in that the piston of the valve device for disabling automation is made with two grooves and is located in the cylinder in front of the reloading piston with the possibility of longitudinal movement perpendicular to the trunk.

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