RU226771U1 - SMALL ARMS FOR SHOOTING WITH CASELESS CARTRIDGES - Google Patents

Abstract

The utility model relates to personal small firearms, in particular pistols, submachine guns and other weapons, and can be used in the armed forces, law enforcement agencies, and shooting sports. A small weapon for firing a caseless cartridge includes a frame, a barrel, a bolt with an ejector, equipped with a dielectric insert with a cylindrical electrode placed in it, a return and trigger mechanisms. A high voltage current source based on a piezoelectric element is located in the internal cavity of the gate. The technical result is to increase the reliability of the design of personal firearms. 4 ill.

Description

The utility model relates to weapons, namely personal small firearms, in particular pistols, submachine guns and other weapons, and can be used in the armed forces, law enforcement agencies, and shooting sports.

State of the art

There are known samples of personal firearms, which also include pistols (Babak F.K. All about pistols and revolvers / F.K. Babak. -M.: ACT Publishing House LLC; St. Petersburg: "Poligon Publishing House":, 2004 . - 415 c), including a frame with a handle, a barrel, a bolt, locking and return mechanisms, trigger and feed mechanisms, safety and sighting devices. The disadvantages of these known pistols are insufficient reliability due to the complexity of the trigger mechanism and insufficient shooting accuracy. self-cocking, due to different pressure on the trigger during the first and subsequent shots.

A small weapon for firing a caseless cartridge is known (Ukrainian patent for utility model No. 79065, IPC (2013.01) F 42 C 11/00, F 42 B 5/00 publ. 04/10/2013, Bulletin No. 7), including a frame with handle, barrel, bolt with ejector, locking and return mechanisms, trigger and feed mechanisms, safety and sighting mechanisms, the bolt of which is equipped with a dielectric insert, with a cylindrical electrode placed in it, connected to a high voltage current generator, in addition, the internal part The cutout in the barrel and the head of the ejector tooth are made in the form of touching inclined surfaces.

The disadvantage of this small arms is its unsatisfactory reliability. This disadvantage is due to the presence of a separate electronic unit containing a high-voltage generator, a control unit, as well as a separate power supply based on a lithium-ion or lithium-polymer battery. The presence of a battery requires its periodic replacement, and a decrease in voltage due to inevitable discharge leads to unexpected failure of the weapon.

As a prototype, a small weapon was selected for firing a caseless cartridge (Ukrainian utility model patent No. 134051, IPC (2019.01) F 42 C 3/00, published 04/25/2019, Bulletin No. 8), including a frame with a handle, a barrel , a shutter with an ejector, equipped with a dielectric insert with a cylindrical electrode placed in it, connected to a high-voltage current source made in the form of a piezoelectric element, locking and return mechanisms, trigger and feed mechanisms, safety and sighting devices

A significant disadvantage of the device adopted as a prototype is also its unsatisfactory reliability, due to the connection of a cylindrical electrode with a high voltage current source using an elastic contact. This contact, during weapon operation, is susceptible to the ingress of lubricant particles, combustion products of the propellant mixture, and other foreign particles. This significantly increases its contact resistance or leads to an interruption in the circuit, causing the weapon to fail.

The purpose of the utility model is to improve personal firearms, in which, by modernizing the design and technological scheme based on a new set of structural elements, their mutual arrangement and the presence of connections between them, the use of electric spark ignition of the propellant mixture of the cartridge, the design of the weapon is simplified, thereby achieving increasing its reliability.

The problem is solved by the fact that in a small arms for firing a caseless cartridge, including a frame, a barrel, a bolt with an ejector, equipped with a dielectric insert, with a cylindrical electrode placed in it, a return and trigger mechanisms, according to the utility model, a high-voltage current source based on a piezoelectric element located in the inner cavity of the shutter.

Placing a high voltage current source based on a piezoelectric element in the internal cavity of the gate ensures the generation of high voltage current and its transmission without additional contacts. The piezoelectric element is protected from external influences, has high reliability and a long service life, does not contain moving elements, which makes it resistant to vibration and aggressive environments. Thus, the implementation of the stated differences will significantly simplify the design of the weapon and increase its reliability in comparison with the prototype.

The technical essence and operating principle of the proposed small arms for firing with a caseless cartridge are explained in the drawings.

Fig. 1 - functional diagram of a small weapon for firing a caseless cartridge. Position before the shot.

Fig. 2 - functional diagram of a small weapon for firing a caseless cartridge. The shutter is at the beginning of the unloading stroke.

Fig. 3 - functional diagram of a small weapon for firing a caseless cartridge. The shutter is in the open position.

Fig. 4 - diagram of a caseless cartridge, longitudinal section.

Essence of a utility model

The proposed weapon for firing a caseless cartridge contains a barrel 1 fixedly mounted on a frame 2. The barrel 1 is closed by a bolt 7 with an ejector 4 and is held in the forward position using a return spring 8. In the internal cavity 12 of the bolt 7 there is a piezoelectric element 13 with a rod 11, as well as a dielectric insert 5 with electrode 6. At the rear of the frame 2, a trigger 9 with a spring 10 is installed, interacting with the rod 11. The remaining parts of the trigger mechanism are not shown in the figure. Before the shot, in the breech of the barrel 1 there is a caseless cartridge 3, in the internal cavity of which there is an electrode 14, the head part 20, which is made in the form of a truncated cone. The internal cavity of the cartridge 3 is filled with a propellant charge 15 and is closed with a combustible bottom 18. The bottom 18 in the central part is equipped with an additional contact 19 made of combustible conductive material. In the rear part of the outer surface of the housing 1 there is an annular groove 17. The electrode 14 is designed such that the distance α from its end to the end 17 of the cartridge body 3 is less than the distance b to the inner wall.

The small arms described above for firing caseless cartridges are used as follows.

Before firing, cartridge 3 from the magazine (not shown in the figure) is fed into barrel 1 with the help of bolt 7. When trigger 9 is released from cocking, it, under the influence of spring 10, strikes rod 11, and rod 11 transmits the shock impulse to piezoelectric element 13. As a result of mechanical deformation of the piezoelectric element 13, a high voltage current arises, which flows through the electrode 6 to contact 19, as a result of which an electric discharge occurs between it and the electrode 14 of cartridge 3, igniting the propellant charge 15. A shot is fired.

Claims (1)

A small weapon for firing a caseless cartridge, containing a frame, a barrel, a bolt with an ejector, equipped with a dielectric insert with a cylindrical electrode placed in it, a return and trigger mechanisms, characterized in that a high-voltage current source based on a piezoelectric element is placed in the internal cavity of the bolt .