A piston-type recoil-reducing full-gun buffer structure and its assembly and working method

Abstract

The purpose of the present invention is to overcome the shortcomings of the prior art and provide a piston-type recoil-reducing full-gun buffer structure, which can reduce the recoil force of the whole gun and reduce the maximum recoil collision energy of the firearm. The structure comprises a mounting platform and a full gun, wherein the mounting platform comprises an outer casing (5), and a piston cylinder (6) is fixed in the inner hole of the outer casing (5); the full gun comprises an inner casing (3), and a sleeve (4) is fixed in the inner hole of the inner casing (3), the rear end of the inner hole of the sleeve (4) is connected to the bolt component, and the front end of the inner hole of the sleeve (4) is fixed to the barrel (10), the barrel (10) is threadedly connected with a piston seat (7) and a tightening screw sleeve (8), the sleeve (4) and the piston seat (7) are slidably fitted in the piston cylinder (6), and a compression space is enclosed between the piston cylinder (6), the piston seat (7) and the barrel (10), and a vent hole (102) is provided in the high-pressure area of ​​the barrel (10), and the vent hole (102) is connected to the compression space.

Description

Technical Field

[0001] The present invention relates to the technical field of firearms, in particular to a piston-type recoil-reducing full-gun buffer structure and an assembly and working method thereof. Background Art

[0002] Firearms typically experience a certain amount of recoil during firing, especially when firing large-caliber rounds, which can have significant impact on the shooter and supporting equipment. This recoil is particularly detrimental in applications where mounting platform stability and shooting accuracy are critical. This is where a piston-type recoil-reducing, full-gun buffer structure comes into play. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a piston-type recoil-reducing full-gun buffer structure and its assembly and working method, which can reduce the recoil force of the entire gun and lower the maximum recoil collision energy of the firearm.

[0004] The object of the present invention is achieved like this:

[0005] A piston-type recoil-reducing full-gun buffer structure.

[0006] Including installation platform, whole gun,

[0007] The mounting platform comprises an outer casing (5), and a piston cylinder (6) is fixed in the inner hole of the outer casing (5);

[0008] The entire gun comprises an inner casing (3), a sleeve (4) is fixed in the inner hole of the inner casing (3), the rear end of the inner hole of the sleeve (4) is connected to the bolt component, and the front end of the inner hole of the sleeve (4) is fixed to the barrel (10), a piston seat (7) and a tightening screw sleeve (8) are threadedly connected to the barrel (10), the sleeve (4) and the piston seat (7) are slidably fitted in the piston cylinder (6), and a compression space is enclosed between the piston cylinder (6), the piston seat (7) and the barrel (10), and a vent hole (102) is provided in the high-pressure area of ​​the chamber of the barrel (10), and the vent hole (102) is communicated with the compression space.

[0009] Preferably, the mounting platform further comprises a hand guard (9), a front opening of the outer receiver (5) is provided with a hand guard mounting interface (53), and a barrel mounting through hole (91) is provided on the hand guard (9).

[0010] Preferably, the barrel (10) is threadedly matched with a piston seat (7) and a tightening screw sleeve (8), and the barrel (10) locks the piston seat (7) through a step and a tightening screw sleeve (8).

[0011] Preferably, the bolt assembly comprises a frame (1) and a head (2); the frame (1) is provided with an opening and closing locking spiral surface (12); the head (2) is provided with a head tenon (22); the rod of the head (2) is inserted into the frame (1); the head tenon (22) is installed in the opening and closing locking spiral surface (12); a sleeve locking tooth (41) is provided inside the sleeve (4); a head locking tooth (21) is provided outside the head (2); and the sleeve locking tooth (41) is provided inside the sleeve (4). The rotational locking with the machine head locking tooth (21) is used to support the gunpowder gas pressure after locking. An inner guide rail (34) is provided inside the inner casing (3). The outer surface of the frame (1) is provided with a frame guide rail (11). The frame guide rail (11) and the inner guide rail (34) are slidably matched. An outer guide rail (33) is provided on the outer side of the inner casing (3). An outer casing guide rail groove (51) is provided inside the outer casing (5). The outer guide rail (33) and the outer casing guide rail groove (51) are slidably matched.

[0012] Preferably, a sleeve mounting hole (32) is provided at the front end of the inner casing (3), and the outer circle of the sleeve (4) is pressed into the sleeve mounting hole (32) of the inner casing (3). An anti-rotation square groove (31) is provided on the hole wall of the sleeve mounting hole (32), and an anti-rotation protrusion (42) is provided on the outer circle of the sleeve (4). The anti-rotation protrusion (42) contacts the anti-rotation square groove (31) to fix the sleeve.

[0013] Preferably, the piston cylinder (6) is threadedly connected to the inner hole of the outer casing, and the inner hole of the piston seat (7) is threadedly connected to the barrel; the outer peripheral surface of the piston seat (7) and the sliding contact part between the piston cylinder (6) and the sleeve are provided with a gas-sealing ring; the sliding contact part between the piston cylinder (6) and the sleeve is provided with a step for limiting the position of the piston seat (7).

[0014] An assembly method for a piston-type recoil-reducing full-gun buffer structure.

[0015] The first step is to connect the sleeve (4) to the inner casing (3);

[0016] Step 2: Connect the gun barrel (10) and the sleeve (4);

[0017] Step 3: Fix the piston seat (7) on the gun barrel (10);

[0018] Step 4: Connect the bolt head (2) and the bolt frame (1) to form the bolt assembly, and then install them together into the inner receiver (3) to form the complete gun;

[0019] Step 5: Fix the piston cylinder (6) into the inner hole of the outer casing (5);

[0020] Step 6: With the muzzle facing forward, insert the entire gun through the piston cylinder (6) from the rear of the outer receiver (5), and then insert the hand guard (9) from the front of the barrel to connect with the outer receiver (5), completing the assembly between the mounting platform and the entire gun.

[0021] A working method of a piston-type recoil-reducing full-gun buffer structure is disclosed. When a machine head (2) and a sleeve (4) complete rotational locking and ammunition is fired, the projectile is pushed by gunpowder gas through the high-pressure area of ​​the chamber, and the high-temperature and high-pressure gas leaks into the compression space through the vent hole (102). When the projectile flies out of the barrel (10), the entire gun recoils, and the piston seat (7) compresses the air in the compression space to perform work.

[0022] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0023] On the one hand, this structure reduces the recoil speed of the entire gun by lowering the maximum chamber pressure and the speed of the projectile leaving the muzzle. On the other hand, through the piston-type recoil buffer structure, the kinetic energy is converted into heat energy by overcoming the work done by compressed air, further reducing the recoil force of the entire gun and reducing the maximum recoil collision energy of the firearm. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention in an assembled state;

[0025] Figure 2 This is a schematic diagram of the frame structure of the present invention;

[0026] Figure 3 It is a schematic structural diagram of the handpiece of the present invention;

[0027] Figure 4 It is a schematic diagram of the inner casing structure of the present invention;

[0028] Figure 5 It is a schematic diagram of the section sleeve of the present invention;

[0029] Figure 6 It is a schematic diagram of the outer casing of the present invention;

[0030] Figure 7 It is a schematic diagram of the piston cylinder of the present invention;

[0031] Figure 8 Schematic diagram of the piston seat of the present invention;

[0032] Figure 9 Schematic diagram of the tightening screw sleeve of the present invention;

[0033] Figure 10 Schematic diagram of the hand guard of the present invention;

[0034] Figure 11 Schematic diagram of the gun barrel of the present invention.

[0035] Reference numerals

[0036] In the accompanying drawings, 1 is the machine frame, 11 is the machine frame guide rail, 12 is the opening and closing locking spiral surface; 2 is the machine head, 21 is the machine head locking tooth, 22 is the opening and closing locking tenon; 3 is the inner receiver, 31 is the square groove, 32 is the section sleeve mounting hole, 33 is the outer guide rail, 34 is the inner guide rail; 4 is the section sleeve, 41 is the section sleeve locking tooth, 42 is the anti-rotation protrusion; 5 is the outer receiver, 51 is the guide rail groove, 52 is the connecting thread with the piston cylinder, and 53 is the mounting interface with the handguard; 6 is the piston cylinder, 61 is the piston cylinder air ring, and 62 is the connecting thread with the outer receiver; 7 is the piston seat, 71 is the connecting thread, and 72 is the piston seat air ring; 8 is the tightening screw sleeve, 81 is the tightening thread; 9 is the handguard, 91 is the barrel mounting hole, and 92 is the mounting interface with the outer receiver. 10 is the gun barrel, 101 is the thread for connecting with the sleeve, 102 is the air bleed hole, and 103 is the thread for installing with the piston seat and the tightening nut. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

[0038] See also Figures 1-11 , an implementation case of a piston-type recoil-reducing full-gun buffer structure.

[0039] like Figure 1 As shown, the complete gun is assembled from a frame 1, a gun head 2, an inner receiver 3, a sleeve 4, a piston seat 7, a locking nut 8, and a barrel 10. The outer receiver 5, a piston cylinder 6, and a handguard 9 form the mounting platform (or the portion held by the shooter). After the round is fired, the entire gun recoils within the mounting platform, creating a piston-like cushioning effect.

[0040] like Figure 2 、 3 The rod of the machine head 2 is installed in the machine frame 1, and the machine head tenon 22 is installed in the opening and closing locking spiral surface 12, and the assembly becomes a bolt component.

[0041] like Figure 4 As shown, the inner receiver 3 has a sleeve mounting hole 32 at its mouth and two anti-rotation slots 31 symmetrically positioned vertically. Two inner guide rails 34 are symmetrically positioned on the inner side of the inner receiver 3, allowing the bolt assembly to slide back and forth above. Two outer guide rails 33 are symmetrically positioned on the outer side of the inner receiver 3, allowing the entire rifle to slide back and forth within the outer receiver's guide rail slots 51.

[0042] like Figure 5As shown, the outer circumference of the sleeve 4 is tightly fitted into the sleeve mounting hole 32 at the mouth of the inner casing 3. The sleeve 4 is internally provided with a number of sleeve locking teeth 41, which rotate and lock with the head locking teeth 21 to support the propellant gas pressure after locking. Two anti-rotation protrusions 42 are symmetrically arranged on the outer circumference of the sleeve 4, and these two anti-rotation protrusions 42 engage with the anti-rotation square grooves 31 of the inner casing. The head locking teeth 21 at the front end of the head also serve as guide rails on the inner casing. After the head is pushed into the sleeve by the frame, it rotates and locks, cooperating with the corresponding locking support surfaces of the sleeve to complete the locking and firing function.

[0043] like Figure 6 As shown, two guide grooves 51 are symmetrically arranged inside the outer receiver 5 for the outer guide rail 33 of the inner receiver to support the entire gun to slide on it. A thread 52 is provided at the front mouth of the outer receiver 5 to connect with the piston cylinder, and two handguard mounting interfaces 53 are also provided on the upper and lower sides of the mouth. After the handguard is aligned with it, it is fixed with a connecting pin.

[0044] like Figure 7 As shown, the outer periphery of one end of the piston cylinder 6 is provided with a section of outer casing connection thread 62 for connecting to the inner hole of the outer casing 5. A plurality of air-sealing rings 61 are provided on the inner hole of the same end of the piston cylinder 6 as the connection thread 62, which is the sliding contact part with the joint sleeve.

[0045] like Figure 8 As shown, the periphery of the piston seat 7 is provided with a plurality of air-locking rings 72, which are in sliding contact with the inner wall of the piston cylinder 6. The inner hole of the piston seat is provided with a connecting thread 71, which is connected to the threaded connection part 103 of the gun barrel.

[0046] like Figure 9 As shown, the inner hole of the tightening nut 8 is provided with a tightening thread 81, which is also connected to the barrel connecting part 103 and presses the piston seat 7 to prevent it from loosening.

[0047] like Figure 10 As shown, the middle of the handguard 9 is provided with a barrel mounting hole 91, through which the barrel 10 can pass. One end of the handguard is provided with a mounting interface 92 for the outer receiver, which is fixedly connected with the handguard by a connecting pin after being aligned with the handguard.

[0048] like Figure 11 As shown, the outer periphery of one end of the chamber of the gun barrel 10 is provided with a sleeve connecting thread 101. A number of vent holes 102 are drilled evenly around the high-pressure area of ​​the chamber. The gunpowder gas enters the piston cylinder through the vent holes, which has the effect of relieving pressure and forming a piston effect, reducing recoil energy.

[0049] The assembly sequence of this structure is:

[0050] Step 1: Press the sleeve 4 into the inner casing 3 to form a fixed connection with it;

[0051] Step 2: The barrel 10 is connected to the sleeve 4 through a thread;

[0052] Step 3: Connect the piston seat 7 and the tightening screw sleeve 8 to the barrel through threads in sequence from the front of the barrel 10;

[0053] Step 4: Connect the machine head 2 and the machine frame 1 through the opening and closing spiral surface and install them together into the guide rail of the inner receiver 3 to assemble the complete gun;

[0054] Step 5: Connect the piston cylinder 6 to the inner hole of the outer casing 5 through threads;

[0055] Step 6: With the muzzle facing forward, pass the entire gun through the piston cylinder 6 from the rear of the outer receiver 5, and place the entire gun inside the guide rail of the outer receiver 5 and the piston cylinder 6 to achieve a state of flexible forward and backward movement.

[0056] Finally, the handguard 9 is passed through the upper and lower holes in front of the outer receiver 5 from the mouth of the barrel 10, and is fixed together with a pin. The entire outer receiver 5 and the handguard 9 are fixed relative to the ground.

[0057] Working process:

[0058] When the machine head 2 and the section sleeve 4 (machine frame 1) complete the rotation lock, after the ammunition is fired, the projectile is pushed by the gunpowder gas in the chamber through the opening area in the chamber, and the high-temperature and high-pressure gas leaks into the nearly enclosed space formed by the gun outer wall, piston cylinder 6, and piston seat 7 through the bleed hole 102 on the wall of the gun barrel 10. Only the sliding contact surface between the outer wall of the section sleeve 4 and the inner wall of the piston cylinder 6, and the outer wall of the piston seat 7 and the inner wall of the piston cylinder 6 has a small gap, which is convenient for compressing air during the recoil process of the whole gun, forming a piston effect. When the projectile flies out of the gun barrel 10, the whole gun recoils, and the piston seat 7 compresses the air in the piston cylinder 6 to do work.

[0059] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A piston-type recoil-reducing full-gun buffer structure, characterized by: Including installation platform, whole gun, The mounting platform comprises an outer casing (5), and a piston cylinder (6) is fixed in an inner hole of the outer casing (5); The entire gun comprises an inner casing (3), a sleeve (4) is fixed in the inner hole of the inner casing (3), the rear end of the inner hole of the sleeve (4) is connected to the bolt component, the front end of the inner hole of the sleeve (4) is fixed to the barrel (10), a piston seat (7) is fixedly connected to the barrel (10), the sleeve (4) and the piston seat (7) are slidably fitted in the piston cylinder (6), a compression space is enclosed between the piston cylinder (6), the piston seat (7) and the barrel (10), and a vent hole (102) is provided in the high-pressure area of ​​the chamber of the barrel (10), and the vent hole (102) is communicated with the compression space; The bolt assembly comprises a frame (1) and a head (2); the frame (1) is provided with an opening and closing locking spiral surface (12); the head (2) is provided with a head tenon (22); the rod of the head (2) is inserted into the frame (1); the head tenon (22) is installed in the opening and closing locking spiral surface (12); a sleeve locking tooth (41) is provided inside the sleeve (4); a head locking tooth (21) is provided outside the head (2); the sleeve locking tooth (41) is in contact with the frame The head locking tooth (21) is rotated and locked to support the gunpowder gas pressure after locking. An inner guide rail (34) is provided inside the inner casing (3). The outer surface of the frame (1) is provided with a frame guide rail (11). The frame guide rail (11) and the inner guide rail (34) are slidably matched. An outer guide rail (33) is provided on the outer side of the inner casing (3). An outer casing guide rail groove (51) is provided inside the outer casing (5). The outer guide rail (33) and the outer casing guide rail groove (51) are slidably matched.

2. The piston-type recoil-reducing full-gun buffer structure according to claim 1, characterized in that: The mounting platform further comprises a hand guard (9), a front opening of the outer casing (5) is provided with a mounting interface (53) for the hand guard, and a barrel mounting through hole (91) is provided on the hand guard (9).

3. The piston-type recoil-reducing full-gun buffer structure according to claim 1, characterized in that: The gun barrel (10) is threadedly matched with a tightening screw sleeve (8) and the piston seat (7), and the piston seat (7) is locked by a step and the tightening screw sleeve (8).

4. The piston-type recoil-reducing full-gun buffer structure according to claim 1, characterized in that: The front end of the inner casing (3) is provided with a sleeve mounting hole (32), the outer circle of the sleeve (4) is pressed into the sleeve mounting hole (32) of the inner casing (3), the hole wall of the sleeve mounting hole (32) is provided with an anti-rotation square groove (31), the outer circle of the sleeve (4) is provided with an anti-rotation protrusion (42), the anti-rotation protrusion (42) contacts the anti-rotation square groove (31) to fix the sleeve.

5. The piston-type recoil-reducing full-gun buffer structure according to claim 1, characterized in that: The piston cylinder (6) is threadedly connected to the inner hole of the outer casing, and the inner hole of the piston seat is threadedly connected to the barrel; the outer peripheral surface of the piston seat (7) and the sliding contact portion between the piston cylinder (6) and the sleeve are provided with a gas-sealing ring; the sliding contact portion between the piston cylinder (6) and the sleeve is provided with a step for limiting the position of the piston seat (7).

6. A method for assembling the piston-type recoil-reducing full-gun buffer structure according to claim 1, characterized in that: The first step: connecting the sleeve (4) to the inner casing (3); Step 2: Connect the gun barrel (10) to the sleeve (4); Step 3: Fix the piston seat (7) and the tightening nut (8) on the barrel (10) in sequence; Step 4: Connect the bolt head (2) and the bolt frame (1) to form the bolt assembly, and then install them together into the inner receiver (3) to form the complete gun; Step 5: Fix the piston cylinder (6) into the inner hole of the outer casing (5); Step 6: With the muzzle facing forward, pass the entire gun through the piston cylinder (6) from the rear of the outer receiver (5), and then pass the handguard (9) through the front of the barrel and connect it to the outer receiver (5), completing the assembly between the mounting platform and the entire gun.

7. A method for operating the piston-type recoil-reducing full-gun buffer structure according to claim 1, characterized in that: When the nose (2) and the sleeve (4) complete the rotational locking and the ammunition is fired, the projectile is pushed by the gunpowder gas through the high-pressure area of ​​the chamber, and the high-temperature and high-pressure gas leaks into the compression space through the vent hole (102). When the projectile flies out of the barrel (10), the entire gun recoils, and the piston seat (7) compresses the air in the compression space and performs work.

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