CN111256528B - Firearm or cannon backing-out device - Google Patents
Firearm or cannon backing-out device Download PDFInfo
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- CN111256528B CN111256528B CN202010198565.0A CN202010198565A CN111256528B CN 111256528 B CN111256528 B CN 111256528B CN 202010198565 A CN202010198565 A CN 202010198565A CN 111256528 B CN111256528 B CN 111256528B
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- trajectory
- inclined plane
- rotary reversing
- rear end
- firearm
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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
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/32—Muzzle attachments or glands
- F41A21/36—Muzzle attachments or glands for recoil reduction ; Stabilisators; Compensators, e.g. for muzzle climb prevention
- F41A21/38—Muzzle attachments or glands for recoil reduction ; Stabilisators; Compensators, e.g. for muzzle climb prevention adjustable, i.e. the vent holes or the vent area being adjustable
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The invention provides a firearm or cannon firing device, comprising: the ejector body is of a hollow structure and is internally provided with a trajectory and two mounting cavities, the front end of the trajectory is a bullet outlet, the rear end of the trajectory is provided with a gas jet hole, and the two mounting cavities are symmetrically arranged on two sides of the trajectory; the two rotary reversing valves are rotatably arranged in the mounting cavity through a fulcrum respectively, and have a first state of completely avoiding the space required by the trajectory after rotation and closing the gas spraying hole, and a second state of mutually propping the rear end part to close the trajectory and opening the gas spraying hole; one end of the connector is connected to the rear end of the stopper body, and the other end of the connector is connected with the barrel of the firearm. The invention solves the technical problems of short service life, low fuel gas utilization efficiency and influence on the external trajectory of the projectile caused by turbulence generated by gunpowder and fuel gas spraying of the existing annealing device.
Description
[ Field of technology ]
The invention relates to the structural field of firearms or artillery, in particular to a backing-out device of firearms or artillery.
[ Background Art ]
The gun or cannon annealing device (gun annealing device for short) is arranged at the bore of the gun or cannon, on one hand, the forward flow of gunpowder gas through the central bullet hole is reduced, and thus the recoil of the weapon is reduced; on the other hand, the air flows out of the side holes to change the direction and the size of the air flow, and is sprayed to the side and the rear, thereby giving forward reaction force to the weapon. The device is provided with a chamber mouth stopper, so that the recoil impulse during firing is reduced, the firing stability of the weapon is improved, and the weight of the weapon can be reduced.
However, the existing gun processing device only can offset 10-50% recoil, can not completely offset recoil, and can also have a certain influence on shooting precision, because the muzzle device interferes with the direction of the gunpowder gas spraying, a certain turbulence can be generated, and further a certain influence on the external trajectory of a projectile is generated, more importantly, the gun device, especially the muzzle device, can also cause a certain damage to a gun barrel during shooting, so muzzle accessories are not installed on many small-caliber high-precision sniping rifles.
The invention in China disclosed in 20190802 and with the application number of CN201910533096.0 discloses a hearth stopper with a pulling piece, which comprises a stopper shell, a gun barrel connecting piece and at least one pulling piece component, wherein a pellet outlet is arranged at the front end of the stopper shell, a pellet inlet is arranged at the rear end of the stopper shell, a central bore hole which is respectively communicated with the pellet outlet and the pellet inlet is arranged in the stopper shell, and at least one gas channel which is respectively communicated with the central bore hole is arranged at two sides of the stopper shell; the plectrum subassembly includes first outer plectrum, the outer plectrum of second, the plectrum in first and the second, and first outer plectrum and the plectrum in first set up respectively in one side of central bore, and the plectrum in second outer plectrum and the second set up respectively in the opposite side of central bore. Through setting up the plectrum in the both sides of central bore, utilize two interior plectrums to intercept the direct-flow of central bore for more air currents flow through the gas outlet of two gas passageways, thereby improve the braking efficiency of braking ware. It has the following problems:
1. because the poking plate structure is adopted, the poking plate is required to be bent to control the air flow, and therefore, the poking plate is required to have enough elasticity, the thickness of the poking plate material must not be too thick, so that the strength of the material is not high, the air flow speed of a muzzle reaches thousands of meters per second, the pressure reaches hundreds of megapascals, and the poking plate with elasticity has far insufficient strength under the extremely high flow speed and pressure, so that the service life is greatly reduced, and even safety accidents are generated.
2. Because the plectrum has flexibility, when the first inner plectrum and the second inner plectrum are respectively driven by the second outer plectrum and the first outer plectrum to bend inwards, time delay phenomenon often occurs, and when the projectile passes through the barrel, the projectile is known to have an initial speed of hundreds of meters per second (for example, the initial speed of an AK-47 rifle is 710 m/s), the time of passing through a central bore hole of the stopper is only tens of ten seconds (about 5X 10 -5 seconds), and the time delay phenomenon can cause a lot of fuel gas to fly out of the projectile outlet along with the projectile, so that the fuel gas utilization efficiency can be greatly reduced.
3. When the projectile flies from the barrel of the firearm and just enters the stopper, the gas pressure forces the first outer poking piece and the second outer poking piece to outwards bend and jet, the jet gas flow can interfere the direction of the gunpowder gas jet to generate certain turbulence, and then the outer trajectory of the projectile which does not fly from the central bore hole is influenced to a certain extent, and the shooting precision is influenced.
[ Invention ]
The invention aims to provide a firearm or cannon arrester, which aims to solve the technical problems that the service life of the existing arrester is short, the gas utilization efficiency is low and the external trajectory of a projectile is influenced by turbulence generated by spraying gunpowder gas.
To this end, the invention proposes a firearm or cannon trigger comprising:
The ejector body is of a hollow structure and is internally provided with a trajectory and two mounting cavities, the front end of the trajectory is a bullet outlet, the rear end of the trajectory is provided with a gas jet hole, and the two mounting cavities are symmetrically arranged on two sides of the trajectory;
The two rotary reversing valves are rotatably arranged in the mounting cavity through a fulcrum respectively and are provided with a first state and a second state after rotating, the first state means that the two rotary reversing valves are completely separated to avoid the space required by the trajectory and close the air jet hole, and the second state means that the rear end parts of the two rotary reversing valves are propped against each other to close the trajectory and open the air jet hole under the pressure of the gas flow;
One end of the connector is connected to the rear end of the stopper body, and the other end of the connector is connected with the barrel of the firearm.
Further, any rotary reversing valve comprises a working surface, the working surface faces the trajectory, the working surface is divided into a front section stress surface and a rear section stress surface by taking the rotary fulcrum as a boundary, and the length and the area of the front section stress surface are respectively larger than those of the rear section stress surface.
Furthermore, the front end of the stopper body is provided with a limiting boss at two sides of the trajectory, the front end of the working surface of any rotary reversing valve is provided with a limiting concave part, and the limiting concave part is resisted on the limiting boss in the first state.
Further, a first inclined plane is arranged at the front end of the inner wall of the installation cavity, and a second inclined plane is arranged at the rear end of the inner wall of the installation cavity; any rotary reversing valve further comprises a front end inclined plane and a rear end inclined plane, wherein the front end inclined plane and the rear end inclined plane face away from the trajectory and are separated by the fulcrum; a wedge-shaped rotating space is formed between the first inclined plane and the front end inclined plane, and the air injection hole is formed between the second inclined plane and the outer surface of the connector.
Further, the rotary reversing valve further comprises two reset elastic pieces, wherein the two reset elastic pieces are respectively arranged in the wedge-shaped rotary space, one end of each reset elastic piece is propped against the front end inclined plane of the rotary reversing valve, and the other end of each reset elastic piece is propped against the first inclined plane.
The invention relates to a gun stopper, which is characterized in that a rotary reversing valve is arranged in front of a gun or a muzzle, the rotary reversing valve can rotate around a fulcrum under the control of gas flow, before a projectile passes through the stopper, under the action of a reset elastic piece, the two rotary reversing valves are in a first state, namely working faces of the two rotary reversing valves are separated to completely avoid the space required by a trajectory, the gas spraying holes are closed, when the projectile passes through the stopper, the gas is sprayed to the working faces of the two rotary reversing valves, and is transited from a spraying force face at a rear section to a force bearing face at a front section, the two rotary reversing valves rotate around the fulcrum according to the action of a lever, the rear ends of the two rotary reversing valves are quickly abutted against each other to close the gas spraying holes due to the action of high pressure of the gas flow, so that the gas spraying holes enter a second state, and the gas of a gun body pipe at the rear end can only completely impact on the rear end inclined faces of the two rotary reversing valves due to the blocking of the trajectory, and then the kinetic energy of a rear seat is quickly converted to be sprayed from the holes, so that kinetic energy of the rear seat is consumed. Then, the two rotary reversing valves are restored to the first state under the action of the reset elastic piece (such as a compression spring or an elastic piece) so as to prepare for the next shooting. Thus having the following advantages:
(1) Because the gas blocking device is a rotary reversing valve adopting a fulcrum lever mode, bending deformation is not needed, a thick triangle-shaped wedge structure can be formed, the structure is simpler and more reliable, the impact strength is greatly improved, the device can withstand the impact of high-speed high-pressure fuel gas, and the service life is long and safe;
(2) Before the projectile flies away from the ejector, the air flow is not changed in the central trajectory of the ejector, and only the two rotary reversing valves act after the projectile leaves the ejector, so that the gas does not flow in the ejector to generate turbulence, the outer trajectory of the projectile is not influenced, and the shooting precision is greatly improved.
(3) When the projectile leaves the ejector, the two rotary reversing valves generate rotary moment in time to rapidly close the air passage of the projectile hole, so that gunpowder gas sprayed along with the projectile is greatly reduced, most of fuel gas is blocked by the rotary reversing valves and sprayed out from the air nozzle, thus higher muzzle ejection efficiency can be obtained, even the kinetic energy of the backseat can be completely consumed, a backseat device is not needed, and the stress of the gun rack is extremely small during shooting. Therefore, the gun or gun has great value in application of overcoming recoil.
(4) Because the rotating reversing valve can close the bullet hole air passage, the regulating and controlling of the pressure and the flow rate of the fuel gas in the barrel are facilitated, and the regulating and controlling of all parameters are difficult unlike the prior backing device which is open from the barrel to the exhaust port.
[ Description of the drawings ]
The invention will be further described with reference to examples of embodiments with reference to the accompanying drawings.
Fig. 1 is a schematic perspective view of a gun processing ejector according to the present invention.
Fig. 2 is a schematic plan view of the rear end of the gun processing ejector of the present invention.
Fig. 3 is a schematic axial cross-sectional view of the gun-shaped retractor of the present invention in a first condition.
Fig. 4 is a cross-sectional view taken along A-A of fig. 3.
Fig. 5 is a schematic axial sectional view of the gun-shaped retractor of the present invention in a transition from a first state to a second state.
Fig. 6 is a schematic axial cross-sectional view of the gun-shaped retractor of the present invention in a second condition.
Fig. 7 is a cross-sectional view taken along B-B of fig. 6.
Fig. 8 and 9 are schematic perspective views of a rotary reversing valve of a gun processing stripper of the present invention.
FIG. 10 is a schematic diagram of the force analysis of the gun processing stripper of the present invention.
[ Detailed description ] of the invention
The embodiment of the invention provides the gun arrester, so that the technical problems that the service life of the existing arrester is short, the gas utilization efficiency is low, and the external trajectory of the projectile is influenced by turbulence generated by spraying gunpowder gas are solved, the service life is prolonged, the influence of the turbulence on the external trajectory of the projectile is eliminated, and the technical effect of the arrester is improved.
The technical scheme in the embodiment of the invention aims to solve the problems, and the overall thought is as follows: through the front rotary reversing valve at the gun or muzzle, the rotary reversing valve can rotate around the fulcrum under the control of the gas flow of gunpowder and gas, before the projectile passes through the arrester, the working surfaces of the two rotary reversing valves are separated to completely avoid the space required by the trajectory, and the gas injection hole is closed, when the projectile passes through the arrester, the gas is injected to the working surfaces of the two rotary reversing valves and transits from the forced surface of the injection to the forced surface of the rear section to the forced surface of the front section, the two rotary reversing valves rotate around the fulcrum according to the action of the lever, and the rear ends of the two rotary reversing valves quickly abut against each other to close the trajectory and open the gas injection hole due to the extremely fast action of the gas flow after the projectile exits the chamber, and at the moment, the gas of the gunpowder and the gas of the barrel of the rear-end firearm can only be completely injected from the gas injection hole due to the blocking of the trajectory, so that the kinetic energy of the rear seat is consumed. The rotary reversing valve controls the opening and closing of trajectory and air injection by rotation, and the power is derived from gunpowder gas flow, so that external force is not needed, and the defect of controlling the opening and closing by bending deformation of materials is completely overcome.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 10, a firearm suppressor 100 according to an embodiment of the present invention includes a suppressor body 1, two rotary directional valves 2 and a connector 3, and is connected to a barrel of a firearm through the connector 3. Wherein:
the ejector body 1 is of a hollow structure, a ballistic trajectory 11 and two mounting cavities 12 are arranged in the ejector body, the front end of the ballistic trajectory 11 is a bullet outlet 13, the rear end of the ballistic trajectory 11 is provided with a gas injection hole 14, and the two mounting cavities 12 are symmetrically arranged on two sides of the ballistic trajectory 11;
The two rotary reversing valves 2 are rotatably installed in the installation cavity 12 through a supporting point 21 respectively and comprise a working surface 22, a front end inclined surface 23 and a rear end inclined surface 24, so that a wedge-shaped structure with a similar three-shaped cross section is formed, the working surface 22 faces the ballistic trajectory 11, and the front end inclined surface 23 and the rear end inclined surface 24 face away from the ballistic trajectory 11 and are separated by the supporting point 21; the two rotary reversing valves 2 have a first state and a second state after being rotated, wherein the first state refers to that the working surfaces 22 of the two rotary reversing valves 2 are separated to completely avoid the space required by the trajectory 11 and close the gas spraying holes 14, and the second state refers to that the rear ends 25 of the two rotary reversing valves 2 are propped against each other to close the trajectory 11 and open the gas spraying holes 14 under the pressure of the gas flow;
the connector 3 has one end connected to the rear end of the stopper body 1 and the other end connected to the barrel 200 of the firearm.
As shown in fig. 9, in the implementation process, in order to ensure smooth rotation of the rotary reversing valve 2, the working surface 22 of any rotary reversing valve 2 is divided into a front section stress surface 221 and a rear section stress surface 222 by taking the rotary fulcrum 21 as a boundary, and the length and the area of the front section stress surface 221 are respectively greater than those of the rear section stress surface 222. Taking the rotary reversing valve 2 above fig. 9 as an example, when the gunpowder gas is sprayed on the working surface 22, the area of the front-stage stress surface 221 is small, the total area of the sprayed force F1 is small, the area of the rear-stage stress surface 222 is large, the total area of the sprayed force F2 is large, the length of the front-stage stress surface 221 is greater than the length of the rear-stage stress surface 222, that is, the force arm L1 of the F1 is also smaller than the force arm L2 of the F2, the counterclockwise moment is greater than the clockwise moment according to the lever principle, and the rotary reversing valve 2 rotates counterclockwise to the second state.
The front end of the ejector body 1 is provided with a limit boss 15 at two sides of the trajectory 11, the front end of the working surface 22 of any rotary reversing valve 2 is provided with a limit concave portion 26, and in the first state, the limit concave portion 26 is resisted on the limit boss 15, and in the case of the rotary reversing valve 2 above in fig. 9, even if the rear-stage stress surface 222 is acted by the gas pressure, the rotary reversing valve cannot continue to rotate clockwise, so as to be kept in the first state.
In another embodiment, to ensure smooth resetting of the rotary reversing valve 2, the rotary reversing valve further includes two resetting elastic members 4, where the two resetting elastic members 4 may be coil springs or elastic pieces, and the like, and are respectively disposed in one of the installation cavities 12, and one end of the resetting elastic member abuts against a front end inclined surface 23 of the rotary reversing valve 2, and the other end of the resetting elastic member abuts against an inner wall of the installation cavity 12. In this way,
The front end of the inner wall of the installation cavity 12 is provided with a first inclined plane 121, the rear end is provided with a second inclined plane 122, a wedge-shaped rotation space is formed between the first inclined plane 121 and the front end inclined plane 22 of the rotary reversing valve 2, and an air injection hole 14 is formed between the second inclined plane 122 and the outer surface of the connector 3.
The working principle of the gun processing ejector of the invention is as follows:
1. as shown in fig. 3, when the projectile 300 passes before passing through the ejector 100 and immediately before entering the ejector 100, the two rotary switching valves 2 are in the first state, i.e., the working surfaces 22 of the two rotary switching valves 2 are separated to completely avoid the space required for exiting the trajectory 11, so that the projectile 300 passes smoothly and the gas injection holes 14 are closed.
2. As shown in fig. 5 and 6, when the pellets 300 pass through the ejector 100, the gas flow is blown (indicated by arrows in the drawing) to the working surfaces 22 of the two rotary directional valves 2, as shown in fig. 5, when the pellets are blown only to the rear-stage receiving surface 222, the rotary directional valves 2 cannot rotate due to the restriction of the restricting boss 15, and when the pellets are transited from the rear-stage receiving surface 222 to the front-stage receiving surface 221, the thrust of the gas flow received by the front-stage receiving surface 221 is gradually increased until the moment is increased enough to cancel the moment of the rear-stage receiving surface 222 and the elastic force of the return elastic member 4, and the two rotary directional valves 2 rotate around the fulcrum 21 according to the principle of leverage. Since the gas flow is extremely fast, as shown in fig. 6, after the projectile 300 is ready to exit, the rear ends 25 of the two rotary directional valves 2 quickly abut against each other to close the trajectory 11 and open the gas injection holes 14, thereby entering the second state, and since the trajectory 11 is blocked, the gunpowder gas of the rear-end barrel 200 can only completely strike the rear inclined surfaces 24 of the two rotary directional valves 2 and then quickly change direction to be ejected from the gas injection holes 14, thereby consuming the kinetic energy of the rear seat.
3. Then, as shown in fig. 10, after the projectile 300 is completely discharged, the gas flow is reduced, and when the spraying force on the front section stress surface 221 cannot counteract the elastic force of the reset elastic member 4, the two rotary reversing valves 2 are restored to the first state under the action of the reset elastic member 4, so as to prepare for the next shooting.
Thus having the following advantages:
(1) Because the gas blocking device of the gun stopper adopts the rotary reversing valve in a fulcrum lever mode, bending deformation is not needed, a thick triangle-shaped wedge structure can be formed, the structure is simpler and more reliable, the impact strength is greatly improved, the gas blocking device can withstand the impact of high-speed high-pressure fuel gas, and the service life is long and safe;
(2) Before the projectile flies away from the ejector, the air flow is not changed in the central trajectory of the ejector, and only the two rotary reversing valves act after the projectile leaves the ejector, so that the gas does not flow in the ejector to generate turbulence, the outer trajectory of the projectile is not influenced, and the shooting precision is greatly improved.
(3) When the projectile leaves the ejector, the two rotary reversing valves generate rotary moment in time to rapidly close the air passage of the projectile hole, so that gunpowder gas sprayed along with the projectile is greatly reduced, most of fuel gas is blocked by the rotary reversing valves and sprayed out from the air nozzle, thus higher muzzle ejection efficiency can be obtained, the kinetic energy of the recoil can be completely consumed, a recoil device is not needed, and the stress of the gun frame is extremely small during shooting, thus the gun or the gun has great value for overcoming the recoil force.
(4) Because the rotating reversing valve can close the bullet hole air passage, the regulating and controlling of the pressure and the flow rate of the fuel gas in the barrel are facilitated, and the regulating and controlling of all parameters are difficult unlike the prior backing device which is open from the barrel to the exhaust port.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the invention, and that equivalent modifications and variations of the invention in light of the spirit of the invention will be covered by the claims of the present invention.
Claims (4)
1. A firearm or cannon trigger, characterized by: comprising the following steps:
The ejector body is of a hollow structure and is internally provided with a trajectory and two mounting cavities, the front end of the trajectory is a bullet outlet, the rear end of the trajectory is provided with a gas jet hole, and the two mounting cavities are symmetrically arranged on two sides of the trajectory;
The two rotary reversing valves are rotatably arranged in the mounting cavity through a fulcrum respectively and are provided with a first state and a second state after rotating, the first state means that the two rotary reversing valves are completely separated to avoid the space required by the trajectory and close the air jet hole, and the second state means that the rear end parts of the two rotary reversing valves are propped against each other to close the trajectory and open the air jet hole under the pressure of the gas flow;
one end of the connecting head is connected with the rear end of the stopper body, and the other end of the connecting head is connected with the barrel of the gun;
The front end of the inner wall of the mounting cavity is provided with a first inclined plane, and the rear end of the inner wall of the mounting cavity is provided with a second inclined plane; any rotary reversing valve further comprises a front end inclined plane and a rear end inclined plane, wherein the front end inclined plane and the rear end inclined plane face away from the trajectory and are separated by the fulcrum; a wedge-shaped rotating space is formed between the first inclined plane and the front end inclined plane, and the air injection hole is formed between the second inclined plane and the outer surface of the connector.
2. A firearm or cannon primer according to claim 1, wherein: any rotary reversing valve comprises a working surface, the working surface faces the trajectory, the working surface is divided into a front section stress surface and a rear section stress surface by taking the fulcrum as a boundary, and the length and the area of the front section stress surface are respectively larger than those of the rear section stress surface.
3. A firearm or cannon primer according to claim 2, wherein: the front end of the stopper body is provided with a limiting boss on two sides of the trajectory, the front end of the working face of any rotary reversing valve is provided with a limiting concave part, and the limiting concave part is resisted on the limiting boss in the first state.
4. A firearm or cannon primer according to claim 1, wherein: the rotary reversing valve further comprises two reset elastic pieces, wherein the two reset elastic pieces are respectively arranged in the wedge-shaped rotary space, one end of each reset elastic piece is propped against the front end inclined plane of the rotary reversing valve, and the other end of each reset elastic piece is propped against the first inclined plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010198565.0A CN111256528B (en) | 2020-03-20 | 2020-03-20 | Firearm or cannon backing-out device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010198565.0A CN111256528B (en) | 2020-03-20 | 2020-03-20 | Firearm or cannon backing-out device |
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| CN111256528A CN111256528A (en) | 2020-06-09 |
| CN111256528B true CN111256528B (en) | 2024-09-24 |
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| CN202010198565.0A Active CN111256528B (en) | 2020-03-20 | 2020-03-20 | Firearm or cannon backing-out device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220107152A1 (en) * | 2020-10-07 | 2022-04-07 | Gustav Lo | Firearm Sound Suppressor |
| US20230272991A1 (en) * | 2022-02-25 | 2023-08-31 | Delta P Design, Inc. | Firearm suppressor with gas-actuated valve |
| US11976896B2 (en) * | 2022-02-25 | 2024-05-07 | True Velocity Ip Holdings, Llc | Firearm muzzle brake with gas-actuated valve |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2680235A1 (en) * | 1991-08-07 | 1993-02-12 | Lacroix E Tous Artifices | Recoilless weapon system |
| CN211926635U (en) * | 2020-03-20 | 2020-11-13 | 刘贵文 | Firearm or artillery brake |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2155309C1 (en) * | 1999-06-07 | 2000-08-27 | Открытое акционерное общество "Завод им. В.А. Дегтярева" | Muzzle brake |
| US20180087861A1 (en) * | 2016-09-26 | 2018-03-29 | James Eric McMillan | Muzzle brake device |
| CN110081771B (en) * | 2019-06-19 | 2024-08-06 | 李笑 | Chamber mouth stopper with poking piece |
-
2020
- 2020-03-20 CN CN202010198565.0A patent/CN111256528B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2680235A1 (en) * | 1991-08-07 | 1993-02-12 | Lacroix E Tous Artifices | Recoilless weapon system |
| CN211926635U (en) * | 2020-03-20 | 2020-11-13 | 刘贵文 | Firearm or artillery brake |
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| CN111256528A (en) | 2020-06-09 |
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