WO2021036149A1 - Piston long-stroke gas-operated recoil automatic system for medium-large-caliber high-precision automatic rifle - Google Patents
Piston long-stroke gas-operated recoil automatic system for medium-large-caliber high-precision automatic rifle Download PDFInfo
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- WO2021036149A1 WO2021036149A1 PCT/CN2020/000173 CN2020000173W WO2021036149A1 WO 2021036149 A1 WO2021036149 A1 WO 2021036149A1 CN 2020000173 W CN2020000173 W CN 2020000173W WO 2021036149 A1 WO2021036149 A1 WO 2021036149A1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A35/00—Accessories or details not otherwise provided for
Definitions
- the rifle is the soldier's support.
- armor-piercing has become the most important issue for battlefield rifles in the future, and small-caliber rifles below 6mm will inevitably be eliminated. Therefore, high-precision medium and large-caliber automatic rifles are the direction of the future development of rifles.
- the new automatic rifle must first meet four major performance requirements: First, high reliability (including easy use), rifle bullets can be fired reliably in any environment and under any conditions, reaching 10,000 rounds of continuous firing without any failure or zero The parts are cracked, and there is no requirement for any functional failure; second, it can break the armor and has good damage.
- the fired bullet should be able to penetrate the enemy’s helmet at a distance of 100 meters, with a bullet diameter of not less than 7.62mm, and a high initial velocity; third, high accuracy, meeting the requirements for precise sniping of targets at medium and long distances over 400 meters; Fourth, the sustainability is good, and individual soldiers can carry enough bullets. Second, it should be simple in structure, easy to maintain, strong and light, anti-corrosion and rust-proof, and can be used for firearms of the same caliber. Third, it should be easy to manufacture, capable of large-scale and rapid production, affordable, and cost-effective. Fourth, the body of the gun should be shortened as much as possible under the premise of ensuring its lethality.
- medium and large-caliber automatic (semi-automatic) rifles have the problems of excessive recoil, poor continuous shooting stability, and low shooting accuracy.
- AK47 automatic assault rifle Take the AK47 automatic assault rifle as an example.
- the gun is simple in structure, easy to manufacture, low in price, and easy to maintain. Not only does the 7.62mm bullet have fierce firepower and power, but also has the outstanding advantages of high reliability. Individual soldiers can also carry enough The bullets ensure the sustainability of operations.
- the continuous shooting gun body has large vibration and poor accuracy, and is only suitable for close encounters. Its advantage over the long range of small-caliber rifles cannot be brought into play.
- the newly designed automatic system is designed to solve the high-precision problem of medium and large-caliber automatic rifles. Taking the AK47 automatic assault rifle as a reference, the new automatic system also uses a rotary locking bolt machine, and the new automatic rifle systems are made to replace the corresponding pistons of the AK47 with the piston long-stroke air-guided reverse seat automatic system of this invention. Except for the long-stroke air guiding automatic system, other systems can use the mature design of the AK47 rifle. While retaining the high reliability of the AK47 rifle, the newly designed air-guided anti-recoil automatic system effectively overcomes the recoil force of the rifle when it is launched, thereby greatly improving the stability and accuracy of the rifle during continuous shooting, thereby achieving stealth and precise shooting.
- the principle of the automatic rifle piston long-stroke air recoil automatic system at the moment when the bullet is fired in the gun, the high air pressure generated by the combustion of the gunpowder is used in the piston air pipe connected parallel to the barrel to make the opposite direction to the recoil force.
- the impact movement compresses the piston spring to offset part of the recoil force (the moment the recoil impact force still exists, but a shock-absorbing spring can be set between the barrel and the gun case to reduce it immediately), and then the return spring through the connecting rod and the bolt Promote the movement of the gun to realize the automatic cycle of ejecting shells and loading bullets.
- Figure 1 is an automatic system diagram of the piston long-stroke air guiding reverse rear seat.
- Figure 2 is a diagram of the piston long-stroke air guiding reverse rear seat automatic system that separates the piston air guiding chamber from the piston spring chamber.
- the piston long-stroke air guiding and recoil automatic system is composed of three parts (see Figure 1 of the accompanying drawings in the manual, at this time the bullet has been loaded, waiting for the position of each component when it is fired).
- the barrel and piston air pipe The function of the piston air pipe: one is to reverse recoil, the other is to compress the piston spring to store energy for pushing the action of the bolt, and the third is to delay the stroke to make the bullet gain kinetic energy. If the diameter of the piston air guide tube is smaller than the diameter of the piston spring, the piston air guide chamber and the piston spring chamber can be separated into front and rear arrangements (see Figure 2 of the accompanying drawings in the description).
- Piston, piston shaft, piston spring and connecting rod and connecting rod head shaft deflection hook device The piston shaft and the connecting rod are fixedly connected in a U-shape, and the piston drives the whole back and forth movement.
- Action process The air guide port of the piston air pipe is above and in front of the bullet shell opening. After the firing pin is fired, a small amount of high-pressure gas instantly enters the air duct to push the piston forward and compress the piston spring to offset part of the recoil force.
- the piston shaft is fixedly connected with the connecting rod in a U shape, and the head sleeve shaft of the connecting rod deflects the hook parts.
- the piston continues its stroke, (delay) near the bottom through the connecting rod to make the connecting rod head axis deflection, the hook part C hits the torsion wheel A and deflects, so that the connecting rod head hook E point rotates to hook the bolt F point, the piston Compressed in place.
- the piston spring reset pushes the bolt to move backward through the connecting rod, opens the locking mechanism and ejection window to eject the shell, and compresses the return spring at the rear of the bolt.
- the piston spring returns to position, and the connecting rod head hits and twists at point D.
- Wheel B makes the head hook of the connecting rod return and rotate (E and F are separated) to release the bolt.
- the re-entry spring of the bolt machine starts to reset, pushes the bolt machine forward, closes the ejection window, loads the bullet and closes the locking mechanism, and waits for the second firing.
- the advantages of this automatic system are that the air guide of the air guide tube is at the mouth of the shell, and the high-pressure gas reacts quickly, which can offset the recoil force in an instant; the second is that the air guide is close to the center of gravity of the gun, and the upward momentum of the air guide is short.
- the jump impact is early, and the shooting stability is easy to control; third, the energy loss is small, and the bullet can reach the maximum initial velocity; fourth, it is beneficial to improve the energy and burning rate of the medium and large caliber bullets without changing the shell volume.
- this system has different characteristics from the AK47 rifle and other automatic (semi-automatic) rifles: First, the high-pressure gas generated by the instantaneous combustion of the gunpowder when the bullet is fired is forward in the piston air pipe Impact and compress the piston spring, opposite to the recoil force. Previously, the impact direction of the high-pressure gas in the air duct of other rifles was backward; the second is that the air duct of the piston air duct is at the back of the barrel, close to the bullet shell mouth.
- the air guide of the AK47 rifle is far away from the bullet shell and is in the middle and front of the barrel; third, the movement of the back seat of the bolt is driven by the compressed piston spring instead of high-pressure gas; the fourth is that the piston connecting rod is disconnected from the bolt.
- the hook is connected by the shaft deflection of the connecting rod head, which increases the continuous repetitive action of hook and unhook of the connecting rod and the bolt.
- the piston connecting rod and bolt of the AK47 rifle are an integral part. Since the prior art can fully guarantee the continuous, accurate and reliable action of hooking and decoupling, the automatic rifle designed with this automatic system has almost the same high reliability as the AK47 rifle.
- the invention has simple structure, easy manufacturing and production, and convenient maintenance. It is suitable for designing and manufacturing various medium and large caliber automatic and semi-automatic assault rifles, sniper rifles, light and heavy machine guns, anti-aircraft machine guns and anti-equipment with high reliability, high accuracy and high initial velocity. Rifles, anti-armor rifles, as well as various caliber grenade launchers and machine guns and other light weapons can form a complete medium and large caliber automatic firearms system.
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Abstract
A newly designed automatic system aims to solve the problem of low precision of medium-large-caliber automatic rifles. With an AK47 automatic assault rifle as a reference, the new automatic system also uses a rotary locking bolt, and all systems of the manufactured new automatic rifle use a piston long-stroke gas-operated recoil automatic system to replace a piston long-stroke gas-operated automatic system corresponding to the AK47 rifle, and the other systems may use a mature design of the AK47 rifle. The high reliability of the AK47 rifle is maintained, and the recoil generated when bullets are fired is effectively overcome by means of the newly designed gas-operated recoil automatic system, thereby greatly improving the stability and accuracy of the rifle during continuous shooting, and thus achieving stealthy precise shooting. The automatic system is suitable for designing and manufacturing various medium-large-caliber automatic and semi-automatic assault rifles, sniper rifles, lightweight machine guns, anti-aircraft machine guns, anti-materiel rifles and anti-armor rifles with high reliability, high precision and high initial speed, and light weapons, such as grenade launchers and machine cannons of various calibers, and can form a complete medium-large-caliber automatic firearm system.
Description
步枪是战士的依靠。随着现代个人防护装具的发展和无人战车的运用，破甲成为今后战场步枪不得不面对的首要问题，6mm以下的小口径步枪必然被淘汰。因此，高精度的中大口径自动步枪才是步枪未来发展的方向。新的自动步枪首先必须满足四大性能要求：第一、可靠性高(包括使用方便)，在任何环境、任何条件下步枪子弹都能可靠射出，达到10,000发子弹连续发射无任何故障、无零部件裂纹、无任何功能失效的要求；第二、能破甲，毁伤性好。发射的枪弹应能在100米距离击穿敌人的头盔，弹径应当不低于7.62mm，并且要有高初速；第三、精准度高，满足400米以上中远距离精确狙杀目标的要求；第四、可持续性好，单兵能携带足够多的子弹。其二，应当结构简单，维护方便，材料坚固轻便，防腐防锈，同口径枪械零件可以通用。其三，应当容易制造，能大规模快速生产，成本价格可以承受，性价比高。其四，在保证杀伤威力的前提下应当尽量缩短枪身。目前，中大口径自动(半自动)步枪都存在后座力过大，连续射击稳定性差，射击精度不高的问题。以AK47自动突击步枪为例，该枪结构简单，生产制造容易，价格低廉，维护方便，不仅7.62mm的枪弹火力猛、威力大，更具有高可靠性的突出优点，单兵也能携带足够多的子弹确保作战的可持续性。但连续射击枪身振动大，精度差，只适合近距离遭遇作战，其相对于小口径步枪射程远的优势无法发挥出来。The rifle is the soldier's support. With the development of modern personal protective equipment and the use of unmanned combat vehicles, armor-piercing has become the most important issue for battlefield rifles in the future, and small-caliber rifles below 6mm will inevitably be eliminated. Therefore, high-precision medium and large-caliber automatic rifles are the direction of the future development of rifles. The new automatic rifle must first meet four major performance requirements: First, high reliability (including easy use), rifle bullets can be fired reliably in any environment and under any conditions, reaching 10,000 rounds of continuous firing without any failure or zero The parts are cracked, and there is no requirement for any functional failure; second, it can break the armor and has good damage. The fired bullet should be able to penetrate the enemy’s helmet at a distance of 100 meters, with a bullet diameter of not less than 7.62mm, and a high initial velocity; third, high accuracy, meeting the requirements for precise sniping of targets at medium and long distances over 400 meters; Fourth, the sustainability is good, and individual soldiers can carry enough bullets. Second, it should be simple in structure, easy to maintain, strong and light, anti-corrosion and rust-proof, and can be used for firearms of the same caliber. Third, it should be easy to manufacture, capable of large-scale and rapid production, affordable, and cost-effective. Fourth, the body of the gun should be shortened as much as possible under the premise of ensuring its lethality. At present, medium and large-caliber automatic (semi-automatic) rifles have the problems of excessive recoil, poor continuous shooting stability, and low shooting accuracy. Take the AK47 automatic assault rifle as an example. The gun is simple in structure, easy to manufacture, low in price, and easy to maintain. Not only does the 7.62mm bullet have fierce firepower and power, but also has the outstanding advantages of high reliability. Individual soldiers can also carry enough The bullets ensure the sustainability of operations. However, the continuous shooting gun body has large vibration and poor accuracy, and is only suitable for close encounters. Its advantage over the long range of small-caliber rifles cannot be brought into play.
本次新设计的自动系统旨在解决中大口径自动步枪的高精度问题。以AK47自动突击步枪为参照，新的自动系统同样采用回转式闭锁枪机，制成的新自动步枪各系统除用本次发明的活塞长行程导气反后座自动系统替换AK47相对应的活塞长行程导气自动系统外，其它系统都可采用AK47步枪的成熟设计。在保留AK47步枪高可靠性的同时，通过新设计的导气反后座自动系统有效克服步枪发射时的后座力，从而大幅提高步枪连续射击时的稳定性和精度，进而实现隐身精确射击。The newly designed automatic system is designed to solve the high-precision problem of medium and large-caliber automatic rifles. Taking the AK47 automatic assault rifle as a reference, the new automatic system also uses a rotary locking bolt machine, and the new automatic rifle systems are made to replace the corresponding pistons of the AK47 with the piston long-stroke air-guided reverse seat automatic system of this invention. Except for the long-stroke air guiding automatic system, other systems can use the mature design of the AK47 rifle. While retaining the high reliability of the AK47 rifle, the newly designed air-guided anti-recoil automatic system effectively overcomes the recoil force of the rifle when it is launched, thereby greatly improving the stability and accuracy of the rifle during continuous shooting, thereby achieving stealth and precise shooting.
自动步枪活塞长行程导气反后座自动系统的原理：在枪内子弹发射的瞬时，利用火药燃烧产生的高气压，在与枪管平行相连的活塞导气管内作与后座力相反方向的冲击运动，压缩活塞弹簧，抵消部分后座力(瞬间后座冲击力仍然存在，但可在枪管与枪匣间设置减震弹簧使之立即消减)，继而通过连杆和枪机复进弹簧推动枪机运动，实现抛壳和装弹发射自动循环。The principle of the automatic rifle piston long-stroke air recoil automatic system: at the moment when the bullet is fired in the gun, the high air pressure generated by the combustion of the gunpowder is used in the piston air pipe connected parallel to the barrel to make the opposite direction to the recoil force. The impact movement compresses the piston spring to offset part of the recoil force (the moment the recoil impact force still exists, but a shock-absorbing spring can be set between the barrel and the gun case to reduce it immediately), and then the return spring through the connecting rod and the bolt Promote the movement of the gun to realize the automatic cycle of ejecting shells and loading bullets.
说明书附图：Attached drawings:
图1是活塞长行程导气反后座自动系统图。Figure 1 is an automatic system diagram of the piston long-stroke air guiding reverse rear seat.
图2是将活塞导气室与活塞弹簧室分开的活塞长行程导气反后座自动系统图。Figure 2 is a diagram of the piston long-stroke air guiding reverse rear seat automatic system that separates the piston air guiding chamber from the piston spring chamber.
活塞长行程导气反后座自动系统由三部分构成(见说明书附图图1，此时为子弹已上膛，等待击发时各部件的位置)。The piston long-stroke air guiding and recoil automatic system is composed of three parts (see Figure 1 of the accompanying drawings in the manual, at this time the bullet has been loaded, waiting for the position of each component when it is fired).
1、枪管和活塞导气管。活塞导气管的作用：一是反后座力，二是压缩活塞弹簧贮能以备推动枪机运动，三是行程延时作用，以使子弹头获得动能。如果活塞导气管的口径小于活塞弹簧的直径，可将活塞导气室与活塞弹簧室分开为前后设置(见说明书附图图2)。1. The barrel and piston air pipe. The function of the piston air pipe: one is to reverse recoil, the other is to compress the piston spring to store energy for pushing the action of the bolt, and the third is to delay the stroke to make the bullet gain kinetic energy. If the diameter of the piston air guide tube is smaller than the diameter of the piston spring, the piston air guide chamber and the piston spring chamber can be separated into front and rear arrangements (see Figure 2 of the accompanying drawings in the description).
2、活塞、活塞轴及活塞弹簧与连杆和连杆头部轴偏转挂勾装置。活塞轴与连杆U形固定连接，由活塞带动整体前后运动。2. Piston, piston shaft, piston spring and connecting rod and connecting rod head shaft deflection hook device. The piston shaft and the connecting rod are fixedly connected in a U-shape, and the piston drives the whole back and forth movement.
3、枪机与复进簧。3. Bolt action and re-entry spring.
动作过程：活塞导气管的导气口在子弹弹壳口的前上方。撞针击发后，少部分高压气体瞬时进入导气管推动活塞向前运动并压缩活塞弹簧，抵消部分后座力。活塞轴与连杆U形固定连接，连杆头部套轴偏转挂勾零件。活塞继续行程，(延时)近底部通过连杆使连杆头部轴偏转挂勾零件C点撞击扭轮A发生偏转，使连杆头部挂勾E点转动勾住枪机F点，活塞压缩到位。之后因子弹射出，导气管内压力减弱和消失，活塞弹簧开始复位。活塞弹簧复位通过连杆推动枪机向后运动，打开闭锁机构和抛壳窗抛弹壳，并压缩枪机后部复进弹簧，抛壳后活塞弹簧复进到位，连杆头部D点撞击扭轮B使连杆头部挂勾复位回转(E、F分离)松脱枪机。枪机复进簧开始复位，推动枪机向前运动，关闭抛壳窗，子弹上膛并关闭闭锁机构，等 待第二次击发。本动作过程为实施例，本实施例不以任何形式限制本发明，凡采用等同替换和等效变换的方式所获得的技术方案均落在本发明的保护范围内(例如：可使枪机与连杆固定连接，而将枪机与活塞的分断连接点移到连杆与活塞轴U形连接的底部，即活塞轴的前端)。Action process: The air guide port of the piston air pipe is above and in front of the bullet shell opening. After the firing pin is fired, a small amount of high-pressure gas instantly enters the air duct to push the piston forward and compress the piston spring to offset part of the recoil force. The piston shaft is fixedly connected with the connecting rod in a U shape, and the head sleeve shaft of the connecting rod deflects the hook parts. The piston continues its stroke, (delay) near the bottom through the connecting rod to make the connecting rod head axis deflection, the hook part C hits the torsion wheel A and deflects, so that the connecting rod head hook E point rotates to hook the bolt F point, the piston Compressed in place. Then the factor ejected, the pressure in the air duct weakened and disappeared, and the piston spring began to reset. The piston spring reset pushes the bolt to move backward through the connecting rod, opens the locking mechanism and ejection window to eject the shell, and compresses the return spring at the rear of the bolt. After the shell is ejected, the piston spring returns to position, and the connecting rod head hits and twists at point D. Wheel B makes the head hook of the connecting rod return and rotate (E and F are separated) to release the bolt. The re-entry spring of the bolt machine starts to reset, pushes the bolt machine forward, closes the ejection window, loads the bullet and closes the locking mechanism, and waits for the second firing. This action process is an example, and this example does not limit the present invention in any form. All technical solutions obtained by equivalent substitution and equivalent transformation fall within the protection scope of the present invention (for example: the gun can be combined with The connecting rod is fixedly connected, and the breaking connection point of the bolt and the piston is moved to the bottom of the U-shaped connection between the connecting rod and the piston shaft, that is, the front end of the piston shaft).
手动子弹上膛和一般故障排除都只需向后拉动枪机手柄到位松开即可。Manual loading of bullets and general troubleshooting only need to pull the handle of the bolt back into place to loosen it.
说明：本自动系统的优点一是导气管的导气口在弹壳口，高压气体反应快，可在瞬时较好抵消后座力；二是导气口靠近枪重心，导气上冲作用力矩短，上跳冲击早，射击稳定性易于控制；三是能量损失小，子弹能达到最大初速；四是有利于在不改变弹壳容积的前提下，提高中大口径枪弹发射药的能量和燃烧率。Description: The advantages of this automatic system are that the air guide of the air guide tube is at the mouth of the shell, and the high-pressure gas reacts quickly, which can offset the recoil force in an instant; the second is that the air guide is close to the center of gravity of the gun, and the upward momentum of the air guide is short. The jump impact is early, and the shooting stability is easy to control; third, the energy loss is small, and the bullet can reach the maximum initial velocity; fourth, it is beneficial to improve the energy and burning rate of the medium and large caliber bullets without changing the shell volume.
相比较AK47步枪及其它导气式自动(半自动)步枪，本系统与AK47步枪及其它自动(半自动)步枪不同的特征：一是子弹发射瞬时火药燃烧产生的高压气体在活塞导气管内是向前冲击，并压缩活塞弹簧，与后座力方向相反。之前其它步枪导气管内高压气体的冲击方向都是向后；二是活塞导气管的导气口在枪管的后部，靠近子弹弹壳口。而AK47步枪的导气口远离子弹弹壳，在枪管的中前部；三是枪机后座运动由被压缩的活塞弹簧复位推动，而非高压气体推动；四是活塞连杆与枪机分断，通过连杆头部轴偏转挂勾连接，增加了连杆与枪机挂勾和脱钩的连续重复动作。而AK47步枪的活塞连杆与枪机是一个整体部件。由于现有技术完全能够保证挂勾和脱钩连续准确可靠动作，固采用本自动系统设计的自动步枪具有与AK47步枪几乎相同的高可靠性。Compared with the AK47 rifle and other air-guided automatic (semi-automatic) rifles, this system has different characteristics from the AK47 rifle and other automatic (semi-automatic) rifles: First, the high-pressure gas generated by the instantaneous combustion of the gunpowder when the bullet is fired is forward in the piston air pipe Impact and compress the piston spring, opposite to the recoil force. Previously, the impact direction of the high-pressure gas in the air duct of other rifles was backward; the second is that the air duct of the piston air duct is at the back of the barrel, close to the bullet shell mouth. The air guide of the AK47 rifle is far away from the bullet shell and is in the middle and front of the barrel; third, the movement of the back seat of the bolt is driven by the compressed piston spring instead of high-pressure gas; the fourth is that the piston connecting rod is disconnected from the bolt. The hook is connected by the shaft deflection of the connecting rod head, which increases the continuous repetitive action of hook and unhook of the connecting rod and the bolt. The piston connecting rod and bolt of the AK47 rifle are an integral part. Since the prior art can fully guarantee the continuous, accurate and reliable action of hooking and decoupling, the automatic rifle designed with this automatic system has almost the same high reliability as the AK47 rifle.
本发明结构简单，制造生产容易，维护方便，适用于设计、制造具有高可靠性、高精度、高初速的各种中大口径自动、半自动突击步枪、狙击步枪、轻重机关枪、高射机枪和反器材步枪、反装甲步枪，以及各种口径的榴弹发射器和机关炮等轻武器，可以构成完整的中大口径自动枪械体系。The invention has simple structure, easy manufacturing and production, and convenient maintenance. It is suitable for designing and manufacturing various medium and large caliber automatic and semi-automatic assault rifles, sniper rifles, light and heavy machine guns, anti-aircraft machine guns and anti-equipment with high reliability, high accuracy and high initial velocity. Rifles, anti-armor rifles, as well as various caliber grenade launchers and machine guns and other light weapons can form a complete medium and large caliber automatic firearms system.
Claims (2)
- 一种中大口径高精度自动步枪活塞长行程导气反后座自动系统，其原理是利用子弹发射瞬时火药燃烧产生的高气压，在与枪管平行相连的活塞导气管内产生一个与后座力相反方向的冲击力，向前压缩活塞弹簧，抵消绝大部分后座力，继而通过连杆和枪机复进弹簧推动枪机运动，实现自动抛壳和装弹发射自动循环。A medium and large-caliber high-precision automatic rifle piston long-stroke air-guided anti-recoil automatic system. Its principle is to use the high air pressure generated by the instantaneous combustion of the gunpowder when the bullet is fired. The impact force in the opposite direction compresses the piston spring forward to offset most of the recoil force, and then pushes the bolt action through the connecting rod and the bolt action spring to realize automatic shell ejection and automatic firing cycles.本发明与AK47步枪及其它导气式自动(半自动)步枪不同的特征：一是子弹发射瞬时火药燃烧产生的高压气体在活塞导气管内是向前冲击，并压缩活塞弹簧，与后座力方向相反。之前其它步枪导气管内高压气体的运动方向都是向后运动；二是活塞导气管的导气口靠近子弹弹壳，在子弹弹壳口处。而AK47步枪的导气口远离子弹弹壳，在枪管的中前部；三是枪机向后运动由被压缩的活塞弹簧推动，而非高压气体推动。The present invention is different from the AK47 rifle and other air-guided automatic (semi-automatic) rifles. First, the high-pressure gas generated by the instantaneous combustion of the gunpowder when the bullet is fired impacts forwards in the piston air pipe and compresses the piston spring to match the direction of recoil force. in contrast. Previously, the direction of movement of high-pressure gas in the air duct of other rifles was backward; the second is that the air guide of the piston air duct is close to the bullet shell, at the mouth of the bullet shell. The air guide of the AK47 rifle is far away from the bullet shell and is in the middle and front of the barrel; third, the backward movement of the bolt is driven by the compressed piston spring instead of high-pressure gas.
- 根据权利要求1所述原理，本发明涉及的活塞连杆与枪机分断，通过连杆头部装置与枪机挂勾连接，增加了活塞连杆与枪机挂勾和脱钩的连续重复动作，活塞连杆与枪机分开运动和连接一起运动交替进行。而AK47步枪的活塞连杆与枪机是一个整体部件。According to the principle of claim 1, the piston connecting rod of the present invention is disconnected from the bolt, and is connected to the bolt hook through the connecting rod head device, which increases the continuous and repeated actions of the piston connecting rod and the bolt hook and disconnection. The piston connecting rod and the bolt move separately and move together alternately. The piston connecting rod and bolt of the AK47 rifle are an integral part.
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| CN201910835512.2A CN110631412B (en) | 2019-08-24 | 2019-08-24 | Automatic piston long-stroke air guide backseat system of medium-large-diameter high-precision automatic rifle |
| CN201910835512.2 | 2019-08-24 |
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| WO2021036149A1 true WO2021036149A1 (en) | 2021-03-04 |
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| PCT/CN2020/000173 WO2021036149A1 (en) | 2019-08-24 | 2020-08-04 | Piston long-stroke gas-operated recoil automatic system for medium-large-caliber high-precision automatic rifle |
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| CN110631412B (en) * | 2019-08-24 | 2022-04-15 | 姚树 | Automatic piston long-stroke air guide backseat system of medium-large-diameter high-precision automatic rifle |
| CN111426232A (en) * | 2020-03-20 | 2020-07-17 | 魏衍伟 | Balanced recoil buffer structure of automatic rifle |
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| CN110631412B (en) | 2022-04-15 |
| CN110631412A (en) | 2019-12-31 |
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