CN110631412B

CN110631412B - Automatic piston long-stroke air guide backseat system of medium-large-diameter high-precision automatic rifle

Info

Publication number: CN110631412B
Application number: CN201910835512.2A
Authority: CN
Inventors: 姚树
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-24
Filing date: 2019-08-24
Publication date: 2022-04-15
Anticipated expiration: 2039-08-24
Also published as: WO2021036149A1; CN110631412A

Abstract

The automatic system newly designed at this time aims at solving the high-precision problem of the medium and large caliber automatic rifle. The AK47 automatic assault rifle is used as a reference, the new automatic system also adopts a rotary type locking rifle bolt, and the mature design of the AK47 rifle can be adopted in other systems except that the piston long-stroke air guide reverse backseat automatic system replaces the piston long-stroke air guide automatic system corresponding to the AK 47. When keeping AK47 rifle high reliability, recoil when effectively overcoming the rifle transmission through the anti-back seat automatic system of air guide of new design to stability and precision when improving the rifle continuous shooting by a wide margin, and then realize stealthy accurate shooting. The invention has simple structure, easy manufacture and production and convenient maintenance, is suitable for designing and manufacturing various light weapons with high reliability, high precision, high initial speed, such as medium and large caliber automatic and semi-automatic assault rifles, sniper rifles, light and heavy machine guns, high-speed machine guns, anti-equipment rifles, anti-armor rifles, grenade launchers and machine guns with various calibers, and can form a complete medium and large caliber automatic firearm system.

Description

Automatic piston long-stroke air guide backseat system of medium-large-diameter high-precision automatic rifle

Technical Field

The invention belongs to the technical field of air-guide type automatic firearms, and particularly relates to a long-stroke air-guide backseat automatic system for a piston of a medium-large-diameter high-precision automatic rifle.

Background

Rifles are the foundation of soldiers. With the development of modern personal protection harness and the application of unmanned combat vehicles, armor breaking becomes the first problem that battlefield rifles have to face in future, and small-caliber rifles below 6mm are inevitably eliminated. Therefore, the high precision automatic rifle with medium and large caliber is the future development direction of the rifle. The new automatic rifle must first meet four performance requirements: firstly, the reliability is high (including convenient use), the rifle bullet can be reliably shot under any environment and any condition, and the requirements of no fault, no part crack and no functional failure of continuous shooting of 10,000 bullets are met; secondly, the nail can be broken, and the damage is good. The shot gun and bullet can puncture the enemy helmet at a distance of 100 meters, the diameter of the bullet is not less than 7.62mm, and the bullet has high initial speed; thirdly, the precision is high, and the requirement of accurately sniping and killing targets in a medium-distance and long-distance range of more than 400 meters is met; fourthly, the sustainability is good, and the individual soldier can carry enough bullets. And secondly, the structure is simple, the maintenance is convenient, the materials are firm and light, the corrosion and rust prevention are realized, and the parts of the firearm with the same caliber can be used universally. Thirdly, it should be easy to manufacture, capable of large-scale rapid production, affordable cost price, and high cost performance. Fourthly, the gun body should be shortened as much as possible on the premise of ensuring the killing power. At present, automatic (semi-automatic) rifles with medium and large calibers have the problems of overlarge recoil, poor continuous shooting stability and low shooting precision. Taking the AK47 automatic assault rifle as an example, the rifle has the advantages of simple structure, easy production and manufacture, low price and convenient maintenance, not only the 7.62mm bullet has violent firepower and large power, but also has the outstanding advantage of high reliability, and the individual soldier can carry enough bullets to ensure the sustainability of the battle. However, the continuous shooting gun body has large vibration and poor precision, is only suitable for short-distance combat, and cannot exert the advantage of long shooting range relative to a small-diameter rifle.

Disclosure of Invention

Technical problem to be solved

The automatic system newly designed at this time aims at solving the high-precision problem of the medium and large caliber automatic rifle. The AK47 automatic assault rifle is used as a reference, the new automatic system also adopts a rotary type locking rifle bolt, and the mature design of the AK47 rifle can be adopted in other systems except that the piston long-stroke air guide reverse backseat automatic system replaces the piston long-stroke air guide automatic system corresponding to the AK 47. When keeping AK47 rifle high reliability, recoil when effectively overcoming the rifle transmission through the anti-back seat automatic system of air guide of new design to stability and precision when improving the rifle continuous shooting by a wide margin, and then realize stealthy accurate shooting.

(II) technical scheme

The principle of the automatic rifle piston long-stroke air guide reverse backseat automatic system is as follows: at the moment of bullet shooting in the gun, high air pressure generated by gunpowder combustion is utilized to perform impact motion in the direction opposite to the recoil in a piston air duct connected with a gun barrel in parallel, a piston spring is compressed to offset most recoil (instantaneous recoil impact force still exists but can be immediately reduced), then the piston spring is reset, a gun bolt is pushed to move through a connecting rod and a gun bolt re-advancing spring, and automatic circulation of shell throwing and bullet loading and shooting is realized.

The automatic system of piston long-stroke air-guide recoil seat is formed from three portions (see attached figure of the specification, at this time, it is the position of every component when the bullet is loaded and is waiting for firing).

1. Barrel and piston air ducts. The function of the piston air duct is as follows: the recoil is reversed, the piston spring is compressed to store energy for pushing the bolt to move, and the stroke delay action is adopted to enable the bullet to obtain kinetic energy.

2. The piston, the piston shaft, the piston spring, the connecting rod and the deflection hook part of the shaft at the head part of the connecting rod are connected with the torsion wheel A and the torsion wheel B.

The piston shaft is fixedly connected with the connecting rod in a U shape, and the piston drives the whole body to move back and forth.

3. A bolt and a recoil spring.

The action process is as follows: the air guide opening of the piston air guide pipe is arranged above the bullet shell opening. After the firing pin is fired, a small part of high-pressure gas instantaneously enters the air duct to push the piston to move forwards and compress the piston spring to offset most recoil. The piston shaft is fixedly connected with the connecting rod in a U-shaped manner, and the head part of the connecting rod is sleeved with the shaft deflection hook part. The piston continues to travel, and the near-bottom part (delay) enables the head shaft of the connecting rod to deflect and hook the point C of the part to impact the torsion wheel A to deflect through the U-shaped connecting rod, so that the point E of the part hook rotates to hook the point F of the gun bolt, and the piston is compressed in place. Then, the pressure in the air duct is reduced and disappears due to the ejection of the bullet, and the piston spring begins to reset. The piston spring is reset to push the gun bolt to move backwards through the connecting rod, the locking mechanism and the ejection window are opened to eject the bullet case, the spring is re-entered at the rear part of the gun bolt, the piston spring is re-entered in place after the ejection, and the shaft at the head part of the connecting rod deflects the hook part D to impact the torsion wheel B so that the hook part is reset to rotate (E, F is separated) to release the gun bolt. And the gun trigger recoil spring begins to reset to push the gun trigger to move forwards, the ejection window is closed, the bullet is loaded and the locking mechanism is closed to wait for secondary firing.

The manual bullet loading and the common fault removal can be realized only by pulling the handle of the gun bolt backwards to be in place and then loosening.

(III) advantageous effects

The automatic system has the advantages that the gas guide port of the gas guide tube is arranged at the opening of the cartridge case, the high-pressure gas reacts quickly, and the recoil can be counteracted instantly and better; secondly, the air guide port is close to the center of gravity of the gun, the acting moment of the air guide upper punch is short, the jump impact is early, and the shooting stability is easy to control; thirdly, the energy loss is small, and the bullet can reach the maximum initial speed; fourthly, the energy and the combustion rate of the propellant powder of the medium and large caliber bullet are improved on the premise of not changing the volume of the bullet shell.

Compared with an AK47 rifle, the difference of the system lies in that a connecting rod is disconnected with a rifle bolt, continuous repeated actions of connection of the connecting rod and a hook of the rifle bolt and rotation unhooking are added, and the accuracy and reliability of the continuous actions of the hook and the unhooking are absolutely required to be ensured. The prior art can completely ensure continuous, accurate and reliable actions of hooking and unhooking, so that the automatic rifle designed by the automatic system has high reliability almost equal to that of the AK47 rifle.

The invention has simple structure, easy manufacture and production and convenient maintenance, is suitable for designing and manufacturing various light weapons with high reliability, high precision, high initial speed, such as medium and large caliber automatic and semi-automatic assault rifles, sniper rifles, light and heavy machine guns, high-speed machine guns, anti-equipment rifles, anti-armor rifles, grenade launchers and machine guns with various calibers, and can form a complete medium and large caliber automatic firearm system.

Drawings

FIG. 1 is a diagram of an automatic system for a long-stroke gas-guiding recoil piston;

Detailed Description

For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.

The automatic system of the long-stroke air guide reverse backseat of the piston consists of three parts: 1. a barrel and piston air duct; 2. the piston, the piston shaft, the piston spring, the connecting rod head shaft deflection hook part, the torsion wheel A and the torsion wheel B; 3. a bolt and a recoil spring.

Wherein, the air guide opening of the air guide pipe of the piston is arranged above the bullet cartridge case opening. The piston spring is reset to push the gun bolt to move backwards through the connecting rod, the locking mechanism and the ejection window are opened to eject the bullet case, the spring is re-entered at the rear part of the gun bolt, the piston spring is re-entered in place after the ejection, and the shaft at the head part of the connecting rod deflects the hook part D to impact the torsion wheel B so that the hook part is reset to rotate (E, F is separated) to release the gun bolt. And the gun trigger recoil spring begins to reset to push the gun trigger to move forwards, the ejection window is closed, the bullet is loaded and the locking mechanism is closed to wait for secondary firing.

The manual bullet loading and the common fault removal of the invention can be realized by pulling the bolt handle backwards to be in place and then releasing.

Compared with an AK47 rifle, the difference of the system lies in that a connecting rod is disconnected with a rifle bolt, continuous repeated actions of connection of the connecting rod and a hook of the rifle bolt and rotation unhooking are added, and the accuracy and reliability of the continuous actions of the hook and the unhooking are absolutely required to be ensured. The prior art can completely ensure continuous, accurate and reliable actions of hooking and unhooking, so that the automatic rifle designed by the automatic system has high reliability almost equal to that of the AK47 rifle. The invention has simple structure, easy manufacture and production and convenient maintenance, is suitable for designing and manufacturing various light weapons with high reliability, high precision, high initial speed, such as medium and large caliber automatic and semi-automatic assault rifles, sniper rifles, light and heavy machine guns, high-speed machine guns, anti-equipment rifles, anti-armor rifles, grenade launchers and machine guns with various calibers, and can form a complete medium and large caliber automatic firearm system.

The technical principles of the present invention have been described above in connection with specific embodiments, which are intended to explain the principles of the present invention and should not be construed as limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive efforts, which shall fall within the scope of the present invention.

Claims

1. The utility model provides a middle and large-diameter high accuracy automatic rifle piston long stroke air guide backseat automatic system which characterized in that:

taking an AK47 automatic assault rifle as a reference, adopting a rotary type locking rifle bolt as well, and adopting the design of an AK47 automatic assault rifle except replacing a piston long-stroke air guide automatic system corresponding to the AK47 by a piston long-stroke air guide backseat automatic system;

the high air pressure generated by the instantaneous gunpowder combustion during bullet shooting is utilized to generate an impact force in the direction opposite to the recoil force in a piston air duct connected with a gun barrel in parallel, a piston spring is compressed forwards to offset most of the recoil force, then the piston spring is reset, and a bolt is pushed to move through a connecting rod and a bolt re-advancing spring, so that the automatic circulation of shell throwing and bullet loading shooting is realized;

including barrel, rifle bolt recoil spring, piston air duct, piston axle, piston spring, connecting rod head axle deflection link up with part and pinch roller A and pinch roller B, wherein:

the piston air duct is arranged above the gun barrel; the air guide port of the air guide pipe is close to the bullet shell and is arranged above the opening of the bullet shell; high-pressure gas generated by the combustion of the gunpowder at the moment of bullet shooting impacts forwards in the piston gas guide pipe and compresses the piston spring, and the direction of the high-pressure gas is opposite to that of recoil; the gunlock moves backwards and is pushed by the return of a compressed piston spring instead of high-pressure gas;

the piston shaft is fixedly connected with the connecting rod in a U shape, and the piston drives the whole body to move back and forth;

the connecting rod is disconnected with the gunlock, and continuous repeated actions of connecting the connecting rod with the gunlock hook and rotating and unhooking are added; the shaft deflection hook part is sleeved at the head of the connecting rod, and the point C of the shaft deflection hook part at the head of the connecting rod impacts the torsion wheel A to deflect, so that the point E of the hook part rotates to hook the point F of the gun trigger; and D point of the connecting rod head shaft deflection hook part impacts the torsion wheel B to reset and rotate the part hook, and E point is separated from F point to loosen the gunlock.