CN215909748U

CN215909748U - Firearm without recoil or with low recoil

Info

Publication number: CN215909748U
Application number: CN202122401981.9U
Authority: CN
Inventors: 曾梓悦
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-07
Filing date: 2021-10-07
Publication date: 2022-02-25
Anticipated expiration: 2031-10-07

Abstract

The utility model provides a firearm without recoil or with low recoil, and belongs to the field of firearms. Comprises a gun barrel; a bolt; a case; a re-advancing device; a launching device and a nozzle assembly; a barrel secured to the receiver and at least partially defining a chamber at a rearward end thereof; the bolt can be matched with the rear end of the chamber and can reciprocate in the receiver; the re-advancing device is used for pushing the bolt forwards to the rear end of the chamber; the shooting device is used for completing the shooting of the bullet; the spray pipe assembly is used for accelerating gunpowder fuel gas after the bullet is fired so that the fuel gas injection momentum and the bullet firing momentum are offset. The utility model realizes the shooting of the firearms without recoil or with low recoil, improves the accuracy of the firearms and enhances the fighting capacity of soldiers.

Description

Firearm without recoil or with low recoil

Technical Field

The utility model belongs to the field of firearms, and particularly relates to a firearm without recoil or with low recoil.

Background

In modern war, infantry plays a vital role, but the existing infantry weapons, such as rifles, submachine guns, light machine guns and the like, all generate great recoil when shooting, and the shooting accuracy of firearms is reduced. The new technology of the recoilless gun disclosed in the publication No. CN103017603A, in view of its technical solution, "force balance principle, lever principle, force sharing principle, which divides the recoil of the gun into symmetrical opposite directions, so that the recoil in the opposite directions are equal and impact at the same time, and the recoil of the gun is offset by each other", cannot eliminate the recoil of the firearm, and also generates a moment for deflecting the firearm, which reduces the firearm precision on the contrary. In the technical scheme of the gun barrel of the recoilless gun and the gun barrel of the artillery, the publication No. CN204649065U discloses that although the recoilless force of the gun is reduced to a certain extent, the gas flow field of gun powder at the muzzle is more complicated and the initial disturbance is increased in the shooting process; on the other hand, the increased structural weight thereof is a disadvantage for the disturbance of the barrel during firing. In the technical scheme of the reusable recoilless ammunition structure disclosed in the publication No. CN113028904A, although the recoilless of the firearm can be reduced to a certain extent, the reusable part of the ammunition structure can be recovered only by adding a cartridge case collecting bag, the complexity of fighting is increased in a complex battlefield environment, the soldiers are not facilitated to fight, and the ammunition needs to be filled with double gunpowder, so that the production complexity is increased and great pressure is applied to logistics.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a firearm without recoil or with low recoil, which can eliminate or reduce the recoil of the firearm when shooting.

The technical solution for realizing the purpose of the utility model is as follows: a non-recoil or low-recoil gun can realize non-recoil or low-recoil firing of the gun, and gunpowder fuel gas after a bullet is fired is accelerated by a spray pipe to enable the ejection momentum of the fuel gas to be offset with the bullet firing momentum.

The recoilless or low recoilless firearm comprises a barrel; a bolt; a case; a re-advancing device; a launching device and a nozzle assembly; said barrel being secured to said housing by a circular aperture and locating pin at a forward end of said housing and at least partially defining a chamber at a rearward end thereof; the spray pipe assembly is connected with the gun barrel and is fixed on the gun barrel through an air guide hole and a positioning pin on the wall of the gun barrel; said bolt being engageable with a rearward end of said chamber and reciprocable in said receiver; the compound feeding device is fixed in the casing through a round hole and a positioning pin at the rear end of the casing; the transmitting device is fixed at the lower part of the casing through a round hole and a positioning pin.

The recoil device comprises a recoil spring and a guide rod; the guide rod is fixed at the rear part of the receiver through a round hole and a positioning pin in the receiver, and the recoil spring is sleeved outside the guide rod and is in non-rigid connection with the rear part of the bolt.

The launching device comprises a trigger and a sear, and optionally, the launching device comprises a trigger connecting rod, a hammer hook and a fast and slow machine protruding bamboo shoot; the trigger, the hammer hook and the iron block are sequentially positioned inside the casing through the torsion springs arranged around the shaft from front to back, the trigger connecting rod is rotatably connected with the trigger and the hammer hook through pins, and the quick-slow machine bamboo shoots are fixed inside the casing through round holes and positioning pins inside the casing.

The spray pipe assembly comprises a gas guide pipe and a spray pipe; optionally, the gas guide pipe is provided with a piston and a piston spring in the branch pipe, and is used for guiding gas generated when the bullet is excited out of the branch pipe to push the piston to move backwards and impact and unlock the bolt, so that the bolt moves backwards and is extracted out and ejects a used cartridge case; preferably, the nozzle is generally a laval nozzle or a venturi nozzle for accelerating the propellant gas to cancel its ejection momentum against the bullet firing momentum.

Compared with the prior art, the utility model has the remarkable advantages that: (1) the parts are reasonably distributed, and the structure is compact; (2) the spray pipe is adopted to accelerate the gunpowder fuel gas after the bullet is fired so that the jetting momentum of the gunpowder fuel gas is offset with the firing momentum of the bullet, thereby realizing the firing without recoil or low recoil of the firearm and improving the accuracy of the firearm; (3) the utility model is also suitable for unmanned combat platforms such as unmanned aerial vehicles and robots, and can eliminate the influence of recoil on the unmanned combat platforms.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below, it should be apparent that the drawings described herein are only intended to provide a further understanding of the present invention and constitute a part of this application, the illustrative embodiments of the present invention and the description thereof are intended to explain the present invention and do not constitute a limitation of the present invention, and other drawings may be obtained by those skilled in the art without inventive effort from these drawings.

FIG. 1 is a schematic structural view of the present invention in a cocked state.

FIG. 2 is a schematic view of the firing process of the present invention.

FIG. 3 is a schematic diagram of the shell extraction process of the present invention.

FIG. 4 is a schematic structural view of another embodiment of the present invention in a cocked state.

FIG. 5 is a schematic view of the firing process of another embodiment of the present invention.

Detailed Description

In order to make the technical means, the technical features and the achievement objects of the utility model easy to understand, the utility model is further described in the following with the specific embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or quantity or location.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, a preferred embodiment of the recoilless or low recoilless firearm of the present invention comprises a barrel 1; a bolt 11; a case; a re-advancing device; a launching device and a nozzle assembly; the barrel 1 is fixed to the casing by means of a circular hole and a positioning pin at the front end of the casing and defines at least partially a chamber at its rear end; the bolt 11 can be matched with the rear end of the chamber and can reciprocate in the receiver; the re-advancing device can push the bolt 11 forwards to the rear end of the chamber; the firing device may strike a striker 12 inside the bolt 11; the nozzle assembly is connected with the gun barrel 1 and is fixed on the gun barrel 1 through an air guide hole and a positioning pin on the wall of the gun barrel 1.

The recoil device comprises a recoil spring 6 and a guide rod 5; the guide rod 5 is fixed in the casing through a round hole and a positioning pin in the casing, and the recoil spring 6 is sleeved outside the guide rod 5 and is in non-rigid connection with the rear part of the bolt 11.

The launching device comprises a trigger 13, a trigger connecting rod 14, a hammer 9, a stop iron 18, a hammer hook 19 and a projecting bamboo shoot 20 of a speed machine; the trigger 13, the hammer 9, the hammer hook 19 and the iron resistor 18 are positioned inside the casing through a torsion spring arranged around a shaft, the trigger connecting rod 14 and the trigger 13 are rotatably connected through a pin and fixed on the hammer hook 19, and the fast and slow machine protruding bamboo shoots 20 are fixed inside the casing through round holes and positioning pins inside the casing.

The spray pipe assembly comprises an air guide pipe 2, an air guide branch pipe 4, a Laval spray pipe 3, a piston 15 and a piston spring 16; the air duct 2 is connected with the gun barrel 1 through a positioning pin, the air guide branch pipe 4 is screwed into the middle of the air duct 2 through threads and contains a piston 15 and a piston spring 16, and the front part of the spray pipe is connected with the rear part of the air duct 2 through the positioning pin.

The operation of the preferred embodiment of the recoilless or low recoilless firearm of the present invention:

pulling the pull handle to make the bolt 11 retreat along the guide rod 5 and press down the hammer 9, and the hammer projecting shoot 10 pushes the hammer hook 19 and the iron resistance 18 to enter a locking position; then the bolt 11 moves forwards under the action of the recoil spring 6, and the bullet is pushed from the bullet holding opening of the magazine to be loaded into the chamber; the trigger 13 is pulled, the trigger link 14 is driven by the trigger 13 to pull the hammer hook 19 to release the hammer 9, and the hammer 9 triggers the bullet primer to ignite the propellant powder by striking the firing pin 12 in the bolt 11, so as to eject the bullet head 7. The piston 15 in the gas manifold 4 is then moved rearwardly by the action of the gas escaping rearwardly from the gas duct 2 to impact and unlock the bolt 11, causing the bolt 11 to move rearwardly, withdrawing the spent cartridge case 8 and ejecting it from the ejection window and compressing the recoil spring 6, whereupon the bolt 11 is reset, completing a firing cycle.

With reference to fig. 4 and 5, another preferred embodiment of a recoilless or low recoilless firearm comprises a barrel 1; a bolt 11; a case; a re-advancing device; a launching device and a nozzle assembly; the barrel 1 is fixed to the casing by means of a circular hole and a positioning pin at the front end of the casing and defines at least partially a chamber at its rear end; the bolt 11 can be matched with the rear end of the chamber and can reciprocate in the receiver; the re-advancing device can push the bolt 11 forwards to the rear end of the chamber; the firing device may releasably retain the bolt 11 in the rearward position; the nozzle assembly is connected with the gun barrel 1 and is fixed on the gun barrel 1 through an air guide hole and a positioning pin on the wall of the gun barrel 1.

The recoil device comprises a recoil spring 26 and a guide rod 25; the guide rod 25 is fixed in the casing through a round hole and a positioning pin in the casing, and the recoil spring 26 is sleeved outside the guide rod 25 and is in non-rigid connection with the rear part of the bolt 31.

The launching device comprises a trigger 29, a trigger link 30 and a sear 33; the trigger 29 and the sear 33 are positioned inside the housing by a pivotally mounted torsion spring and the trigger link 30 is pivotally connected to the trigger 29 by a pin.

The spray pipe assembly comprises a gas guide pipe 22 and a Laval spray pipe 23; the air duct 22 is connected with the gun barrel 21 through a positioning pin, and the front part of the spray pipe is connected behind the air duct 22 through a positioning pin.

The operation of another preferred embodiment of the recoilless or low recoilless firearm of the present invention:

pulling the pull handle 24 to cause the bolt 31 to retreat along the guide rod 25 and to press down the sear 31 into a locked position; the trigger 29 drives the trigger link 30 to pull the sear 31 to release the bolt 31 by pulling the trigger; then the bolt 31 moves forward under the action of the recoil spring 26 to push the bullet from the bullet holding opening of the magazine to be loaded into the chamber, and the firing pin 32 on the bolt 31 triggers the bullet primer to ignite the propellant powder to shoot out the bullet head 27; the cartridge 28 then impacts the bolt 31 rearwardly by the recoil action, causing the bolt 31 to move rearwardly, withdrawing the spent cartridge 28 and ejecting it from the ejection window, compressing the recoil spring 26 and depressing the sear 31 back to the locked position, completing a firing cycle.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A recoilless or low recoilless firearm, comprising: comprises a gun barrel; a bolt; a case; a re-advancing device; a launching device and a nozzle assembly; said barrel being secured to said housing by a circular aperture and locating pin at a forward end of said housing and at least partially defining a chamber at a rearward end thereof; said bolt being engageable with a rearward end of said chamber and reciprocable in said receiver; the re-advancing device can push the bolt forwards to the rear end of the chamber; the firing device can complete the firing of the bullet; the spray pipe assembly is connected with the gun barrel and is fixed on the gun barrel through an air guide hole and a positioning pin on the wall of the gun barrel.

2. The recoilless or low recoilless firearm of claim 1 wherein: the recoil device comprises a recoil spring and a guide rod; the guide rod is fixed inside the receiver through a round hole and a positioning pin inside the receiver, and the recoil spring is sleeved outside the guide rod and is in non-rigid connection with the rear part of the bolt.

3. The recoilless or low recoilless firearm of claim 1 wherein: the launching device comprises a trigger and a sear; the trigger and sear are positioned inside the case by a torque spring mounted around the shaft.

4. The recoilless or low recoilless firearm of claim 1 wherein: the spray pipe assembly comprises a gas guide pipe and a spray pipe; the gas guide pipe is connected with the gun barrel through a positioning pin and is used for guiding gas generated when the bullet is excited to the spray pipe; the front part of the spray pipe is connected with the air duct through a positioning pin.