Active series-parallel connection type low-stability recoil buffering device

Abstract

The invention relates to the technical field of firearms, in particular to an active series-parallel connection type low-stability recoil buffering device which comprises a weapon launching platform and an automatic weapon, the automatic weapon comprises a cartridge receiver and a tube body installed on the cartridge receiver, and the cartridge receiver is slidably connected to the weapon launching platform; a pneumatic buffering outer cylinder is installed on the weapon launching platform, a bidirectional pre-pressing spring buffer is installed on the pipe body and installed in the pneumatic buffering outer cylinder, an exhaust device and an overflow pressure stabilizing device are installed on the pneumatic buffering outer cylinder, a buffering cavity is reserved in the pneumatic buffering outer cylinder, and an overflow pressure stabilizing device is installed in the buffering cavity. And the buffer cavity is communicated with the exhaust device, and is communicated with one side of the pipe body. According to the method, the recoil acting on the weapon launching platform can be kept in a low stable state while the automatic weapon movement can be rapidly attenuated.

Description

Technical Field

[0001] This invention relates to the field of firearms technology, and specifically to an active series-parallel type low-stability recoil buffer device. Background Technology

[0002] The recoil of automatic weapons is essentially a result of the combined constraints of momentum conservation and the instantaneous release of energy. In the pursuit of high initial velocity and high power of the projectile, the adverse effect is that the impulse acting on the launching device also increases. At the same time, the propellant gases burning in the barrel flow out of the barrel at a higher initial velocity. The momentum of the projectile and the propellant gases is the main reason for the large recoil of the weapon. Excessive recoil affects the strength of the weapon launching platform and the accuracy of the weapon.

[0003] For automatic weapons, the core task of weapon research is to minimize the peak pressure within the allowed travel distance and to decay recoil energy as quickly as possible. To reduce the recoil impact on the weapon launch platform, related technical solutions generally aim to reduce the peak recoil force by decreasing the recoil impulse and employing buffering techniques. Hydraulic and spring-based buffering devices are commonly used in this process. When using springs for buffering, the buffering mechanism passively absorbs energy, and the response delay leads to low recoil force transmission efficiency. At the beginning of the weapon launch, the recoil force is relatively small, and the buffering capacity is weak. However, as the recoil displacement increases, the recoil force usually becomes larger, resulting in a significant fluctuation in the recoil force curve. This excessive recoil force poses a significant challenge for some airborne weapons or unmanned combat systems. Furthermore, the fluctuating recoil force significantly affects the accuracy of continuous firing of automatic weapons.

[0004] Therefore, for automatic weapons, reducing the peak recoil and minimizing recoil fluctuations is beneficial for ensuring the structural strength of the launch platform and the accuracy of firing. Summary of the Invention

[0005] The purpose of this invention is to provide an active series-parallel low-stability recoil buffer device to solve the aforementioned problems. Based on traditional spring buffering, a portion of the propellant gas from the barrel is introduced into the buffer chamber for active buffering control. By rationally controlling the gas flow and pressure changes within the buffer chamber, the recoil process is buffered and decelerated through gas pressure control. This achieves rapid attenuation of the automatic weapon's motion while ensuring that the recoil force acting on the weapon's firing platform remains at a low and stable level. Furthermore, as the recoil process nears its end, the gas in the buffer chamber is released to reduce the forward thrust, thereby significantly reducing the peak recoil force and recoil fluctuations.

[0006] To achieve the above objectives, the present invention provides the following solution: An active series-parallel low-stability recoil buffer device includes a weapon launching platform and an automatic weapon. The automatic weapon includes a receiver and a tube mounted on the receiver. The receiver is slidably connected to the weapon launching platform. A pneumatic buffer outer cylinder is installed on the weapon launching platform. A bidirectional preloaded spring damper is installed on the tube and is installed inside the pneumatic buffer outer cylinder. An exhaust device and an overflow pressure stabilizing device are installed on the pneumatic buffer outer cylinder. A buffer cavity is reserved inside the pneumatic buffer outer cylinder. The buffer cavity is connected to the exhaust device and to one side of the tube.

[0007] Preferably, the air guiding device includes an air guiding hole, which is opened on the side wall of the tube body. An air guiding interface for the tube body is installed on the air guiding hole. A one-way valve mounting hole is opened on the side wall of the pneumatic buffer outer cylinder. A one-way valve is installed in the one-way valve mounting hole. The one-way valve is located on one side of the buffer chamber. The one-way valve is connected to the air guiding interface for the tube body through a flexible metal tube.

[0008] Preferably, the bidirectional preloaded spring buffer includes a piston guide rod, which is slidably connected to one end of the pneumatic buffer outer cylinder. A buffer device connector is fixedly connected to one end of the piston guide rod extending out of the pneumatic buffer outer cylinder. The buffer device connector is fixedly connected to the tube body and located on the side away from the weapon launching platform. A piston is fixedly connected to one end of the piston guide rod, and the piston is movably and sealed within the buffer cavity. A first adjusting nut is threaded to the other end of the piston guide rod. A stepped shaft is fixedly connected to the outside of the first adjusting nut, and the stepped shaft is positioned close to the piston. A compression spring is sleeved on the outside of the piston guide rod. A first retaining ring and a second retaining ring abut against both ends of the compression spring. The second retaining ring abuts against the annular end face of the pneumatic buffer outer cylinder, and the first retaining ring abuts against the front end face of the pneumatic buffer outer cylinder. The first adjusting nut is rotatably connected to the front end face.

[0009] Preferably, the exhaust device includes a passive buffer cylinder, which is connected to the buffer cavity. An exhaust hole is provided on the side wall of the passive buffer cylinder. An exhaust device mounting hole is provided inside the passive buffer cylinder, and the exhaust hole is connected to the exhaust device mounting hole. An exhaust valve core is movably disposed within the exhaust device mounting hole. An exhaust valve spring abuts against the bottom surface of the exhaust valve core. An end cap abuts against the bottom end of the exhaust valve spring and is installed at the bottom end of the passive buffer cylinder. A central channel is provided at the center of the exhaust valve core, penetrating the exhaust valve core. A slope is provided on the portion of the exhaust valve core extending into the buffer cavity. A side hole is provided on the side wall of the exhaust valve core, and the axis of the side hole and the exhaust hole are located in the same plane and are parallel.

[0010] Preferably, the overflow pressure stabilizing device includes a lower valve body, and the end of the pneumatic buffer outer cylinder is provided with an overflow pressure stabilizing device mounting hole. The lower valve body is installed in the mounting hole, and the side wall of the lower valve body is provided with an air inlet and an air outlet. The air inlet communicates with the buffer cavity, and the air outlet communicates with the outside. An overflow pressure stabilizing component is installed in the lower valve body.

[0011] Preferably, the overflow voltage stabilizing component includes a valve core, a central hole is provided at the end of the lower valve body away from the buffer chamber, the valve core is movably and sealingly disposed in the central hole, a spring mounting hole is provided on the side of the valve core away from the lower valve body, a spring is provided in the spring mounting hole, an upper valve body is fixedly connected to the lower valve body, a second adjusting nut is threadedly connected to the end of the upper valve body away from the lower valve body, and the spring abuts against the second adjusting nut; The valve core has a central damping hole at one end near the buffer cavity. The central damping hole is not connected to the spring mounting hole. The central damping hole has an end face at one end near the buffer cavity. The valve core has a small hole on its side wall. The small hole is connected to the central damping hole. The axes of the small hole, the air inlet, and the air outlet are located in the same plane.

[0012] The present invention has the following technical effects: 1. Innovative in principle: The active pneumatic buffer principle draws high-pressure gas from the barrel. In the initial stage of recoil, a spring buffer is connected in parallel with the pneumatic buffer to generate a large stabilizing force to hinder the recoil of the automatic weapon, achieving rapid attenuation of the recoil velocity. During the forward thrust phase, a spring is used alone for buffering, separating the recoil force during the recoil process from that during the forward return phase, which is beneficial for controlling the weapon's movement.

[0013] 2. Recoil adjustment and control: In this scheme, the gas in the buffer chamber is kept stable by the combined application of one-way valve, overflow valve and exhaust valve, which ensures that the peak value of recoil is not too large and at the same time ensures its stability, which is conducive to improving the firing accuracy of the weapon system and ensuring the strength of the weapon launching platform.

[0014] 3. This invention enables low-recoil launch and can be used in lightweight unmanned combat systems and airborne artillery systems, making it widely adaptable to various combat scenarios.

[0015] 4. This invention, in conjunction with recoil reduction technologies such as muzzle brakes, can significantly reduce the magnitude of recoil during the firing process of automatic weapons and control the recoil stroke. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure after the invention is installed; Figure 2 This is a schematic diagram of the main structure of the invention after installation; Figure 3 This is a top view schematic diagram of the structure after the present invention is installed; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of the middle BB; Figure 5 This is a partially enlarged view of the bidirectional preloaded spring buffer of the present invention; Figure 6 This is an isometric view of the pneumatic buffer outer cylinder of the present invention; Figure 7 This is a cross-sectional view of the pneumatic buffer outer cylinder of the present invention; Figure 8 This is an isometric view of the buffer device of the present invention; Figure 9 This is a cross-sectional view of the buffer device of the present invention; Figure 10 This is a schematic diagram of the lower valve body of the overflow pressure stabilizing device of the present invention; Figure 11 This is a schematic diagram of the valve core of the overflow pressure stabilizing device of the present invention; Figure 12 This is a schematic diagram of the valve core structure of the present invention; Figure 13 This is a schematic diagram of the bidirectional preloaded spring buffer of the present invention; Figure 14 This is a schematic diagram of the piston guide rod of the present invention.

[0018] Among them, 1. Weapon launching platform; 2. Automatic weapon; 21. Receiver; 22. Tube body; 23. Buffer device connector; 3. Two-way preloaded spring buffer; 31. Piston guide rod; 32. First adjusting nut; 33. First retaining ring; 34. Compression spring; 35. Second retaining ring; 4. Gas guiding device; 41. Tube body gas guiding interface; 42. Flexible metal tube; 43. One-way valve; 5. Pneumatic buffer outer cylinder; 64. Passive buffer cylinder; 6 61. Exhaust device; 62. Exhaust valve core; 63. Exhaust valve spring; 74. Overflow pressure stabilizing device; 75. Second adjusting nut; a. Air guide hole; b. One-way valve mounting hole; c. Exhaust hole; d. Exhaust device mounting hole; e. Overflow pressure stabilizing device mounting hole; g. Annular end face; h. Front end face; i. Side hole; j. Central channel; k. Inclined surface; l 1. Inlet; m. Outlet; n. Central hole; o. Small hole; p. Central damping hole; q. End face; r. Spring mounting hole; t. Stepped shaft. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Reference Figures 1 to 14 As shown, this embodiment provides an active series-parallel type low-stability recoil buffer device, including a weapon launching platform 1 and an automatic weapon 2. The automatic weapon 2 includes a receiver 21 and a tube body 22 mounted on the receiver 21. The receiver 21 is slidably connected to the weapon launching platform. A pneumatic buffer outer cylinder 5 is installed on the weapon launching platform 1, and a bidirectional preload spring buffer 3 is installed on the tube body 22. The bidirectional preload spring buffer 3 is installed inside the pneumatic buffer outer cylinder 5. An exhaust device 6 and an overflow pressure stabilizing device 7 are installed on the pneumatic buffer outer cylinder 5. A buffer cavity is reserved inside the pneumatic buffer outer cylinder 5. The buffer cavity is connected to the exhaust device 6 and to one side of the tube body 22.

[0022] Further optimizing the scheme, the air guiding device 4 includes an air guiding hole a, which is opened on the side wall of the tube body 22. An air guiding interface 41 is installed on the air guiding hole a. A one-way valve mounting hole b is opened on the side wall of the pneumatic buffer outer cylinder 5. A one-way valve 43 is installed in the one-way valve mounting hole b. The one-way valve 43 is located on one side of the buffer chamber. The one-way valve 43 is connected to the air guiding interface 41 of the tube body through a flexible metal tube 42.

[0023] One end of the flexible metal tube 42 is fixed to the vent port of the barrel 11, and the other end is connected to the pneumatic buffer cylinder 5 via a one-way valve 43. The flexible metal tube 42 allows relative displacement between its two ends. When the projectile is fired and passes the vent port a, the gas pressure inside the chamber is greater than the gas pressure inside the buffer chamber. The gas pressure inside the chamber flows into the buffer chamber of the pneumatic buffer cylinder 3 through the vent port a. When the gas pressure inside the chamber is lower than the pressure inside the buffer chamber, the one-way valve 43 closes. The flexible metal tube 42 can be a flexible metal hose made of a high-temperature resistant, high-strength nickel-based alloy.

[0024] The weapon launching platform 1 is the mounting platform for the automatic weapon 2. The automatic weapon 2 can perform reciprocating linear buffering motion under the action of the linear groove of the weapon launching platform 1. A gas guide hole a is designed in the middle part of the barrel 22. When the projectile is fired, the high-pressure gas in the barrel can flow out from the gas guide hole a and flow into the pneumatic buffer cylinder 5 through the gas guide device 4.

[0025] The pneumatic buffer outer cylinder 5 is fixed relative to the weapon launching platform 1 via its end face e. The recoil force generated when the automatic weapon 2 is fired acts directly on it and is transmitted to the weapon launching platform 1. The b-hole on the outer cylinder is the mounting hole for the one-way valve 43, through which the propellant gases in the bore flow into the pneumatic buffer cylinder 5.

[0026] Further optimization of the scheme: the bidirectional preloaded spring buffer 3 includes a piston guide rod 31, which is slidably connected to one end of the pneumatic buffer outer cylinder 5. The end of the piston guide rod 31 extending out of the pneumatic buffer outer cylinder 5 is fixedly connected to a buffer device connector 23, which is fixedly connected to the tube body 22. The buffer device connector 23 is located on the side away from the weapon launch platform 1. One end of the piston guide rod 31 is fixedly connected to a piston, which is sealed and movable in the buffer cavity. The other end of the piston guide rod 31 is threadedly connected to a first adjusting nut 32. A stepped shaft t is fixedly connected to the outside of the first adjusting nut 32. The stepped shaft t is located close to the piston. A compression spring 34 is sleeved on the outside of the piston guide rod 31. The two ends of the compression spring 34 abut against a first retaining ring 33 and a second retaining ring 35. The second retaining ring 35 abuts against the annular end face g of the pneumatic buffer outer cylinder 5, and the first retaining ring 33 abuts against the front end face h of the pneumatic buffer outer cylinder 5. The first adjusting nut 32 is rotatably connected to the front end face h.

[0027] The piston guide rod 31 is a rod-shaped structure. One end is connected to the buffer device connecting device 23 in the automatic weapon 2, and it reciprocates linearly along with the automatic weapon 2 during firing. The other end of the piston guide rod 31 is a piston structure. The high-pressure gas entering the pneumatic buffer cylinder 5 directly acts on the piston end face to hinder the piston's recoil movement. The adjusting nut 32 is fitted on the piston guide rod 31, and can adjust the preload of the compression spring 34 during the screwing-in and screwing-out process, which can be used to adjust the initial value of the recoil force at the beginning of weapon firing. The compression spring 34 is a low-stiffness compression spring, and its preload can be high to ensure that the spring force does not change much during recoil. The retaining rings 33 and 35 are installed at both ends of the compression spring 35 to ensure that the spring is always under compression during the recoil and forward thrust of the automatic weapon 2. During the recoil process, the adjusting nut 32 presses against the retaining ring 33, causing the spring to compress. The spring force acts on the middle annular end face g of the pneumatic buffer cylinder 5 and the retaining ring 33 respectively. During the forward thrust, the stepped shaft t on the piston guide rod 31 presses against the retaining ring 35, causing the spring to compress. The spring force acts on the front end face h of the pneumatic buffer cylinder 5 and the retaining ring 35 respectively.

[0028] Further optimizing the design, the exhaust device 6 includes a passive buffer cylinder 64, which is connected to the buffer chamber. An exhaust hole c is provided on the side wall of the passive buffer cylinder 64. An exhaust device mounting hole d is provided inside the passive buffer cylinder 64, and the exhaust hole c is connected to the exhaust device mounting hole d. An exhaust valve core 61 is movably installed inside the exhaust device mounting hole d. An exhaust valve spring 62 abuts against the bottom surface of the exhaust valve core 61. An end cap 63 abuts against the bottom end of the exhaust valve spring 62 and is installed at the bottom end of the passive buffer cylinder 64. A central channel j is provided in the center of the exhaust valve core 61, penetrating the exhaust valve core 61. An inclined surface k is provided on the portion of the exhaust valve core 61 extending into the buffer chamber. A side hole i is provided on the side wall of the exhaust valve core 61, and the axis of the side hole i and the exhaust hole c are located in the same plane and are parallel.

[0029] The exhaust valve core 61 is provided with a side hole i, a central channel j, and an inclined surface k. In the initial state of the automatic weapon recoil, the exhaust valve core is held in place by the spring force, and the side hole i is blocked by the wall of the pneumatic buffer cylinder 5. After the piston moves a certain stroke, it squeezes the inclined surface k, so that the side hole i is connected to the c hole of the pneumatic buffer cylinder 5, and the pressurized gas in the pneumatic buffer cylinder 5 can be quickly discharged.

[0030] Further optimizing the design, the overflow pressure stabilizing device 7 includes a lower valve body 71. An overflow pressure stabilizing device mounting hole e is provided at the end of the pneumatic buffer outer cylinder 5. The lower valve body 71 is installed within the mounting hole e, and an air inlet is provided on the side wall of the lower valve body 71. l And air outlet m, air inlet l It is connected to the buffer chamber, and the air outlet m is connected to the outside. An overflow pressure stabilizing component is installed in the lower valve body 71.

[0031] The solution is further optimized. The overflow pressure regulating component includes a valve core 72. A central hole n is opened at the end of the lower valve body 71 away from the buffer chamber. The valve core 72 is sealed and movable in the central hole n. A spring mounting hole r is opened on the side of the valve core 72 away from the lower valve body 71. A spring 73 is installed in the spring mounting hole r. An upper valve body 74 is fixedly connected to the lower valve body 71. A second adjusting nut 75 is threadedly connected to the end of the upper valve body 74 away from the lower valve body 71. The spring 73 abuts against the second adjusting nut 75. A central damping hole p is provided at one end of the valve core 72 near the buffer chamber. The central damping hole p is not connected to the spring mounting hole r. An end face q is provided at the end of the central damping hole p near the buffer chamber. A small hole o is provided on the side wall of the valve core 72. The small hole o is connected to the central damping hole p. The small hole o and the air inlet are connected. l The axes of the air outlet m are located in the same plane.

[0032] The lower valve body 71 is installed at the e-hole position of the pneumatic buffer cylinder 5, and is coaxially mounted with the e-hole. It is designed with an air inlet. l There are two holes: the vent hole m and the central hole n. The central hole n is the mounting hole for the valve core 72.

[0033] The valve core 72 is installed in the central hole n of the lower valve body 71 and can move slightly along its axial direction. It is designed with a small hole O, a central damping hole p, an end face q and a spring mounting hole r.

[0034] Spring 73 is installed in the hole r of valve core 72. Upper valve body 74 and lower valve body 71 are fixedly installed relative to each other. Adjusting nut 74 can adjust the compression of spring 73 during the process of screwing in and out, which is used to adjust the gas pressure in the pneumatic buffer cylinder during the recoil of automatic weapon 2.

[0035] The working process of this embodiment is as follows: In the initial state, the bidirectional preloaded spring buffer 3 sets the initial preload through the adjusting nut 32, and connects the automatic weapon 2 and the pneumatic buffer cylinder 5 under the action of the piston guide rod 31, the compressed spring 34, the retaining ring 33 and the retaining ring 35.

[0036] After the projectile is fired and before it passes the gas port a, the recoil energy is buffered separately by the bidirectional preloaded spring buffer chamber 3. At this time, the recoil force acting on the weapon launching platform is only the spring force.

[0037] After the projectile passes through the gas port a, the high-pressure gas inside the barrel passes through the gas guiding device 4 and enters the buffer chamber inside the pneumatic buffer cylinder 5. The buffer chamber is a closed space surrounded by the pneumatic buffer cylinder 5 and the piston guide rod 31. After entering the buffer chamber, the high-pressure gas acts on the concave end face of the piston guide rod 31, hindering the recoil of the automatic weapon 2, and the speed of the automatic weapon 2 decreases relatively quickly. At this time, the recoil force includes the spring force and the gas pressure inside the pneumatic buffer chamber.

[0038] As the projectile exits the muzzle, the gas pressure inside the chamber rapidly decreases. At this point, the directional valve 43 closes the passage between the buffer chamber and the barrel 22. As the piston guide rod 31 continues to recoil, the gas pressure inside the buffer chamber increases.

[0039] When the gas pressure in the buffer chamber rises, the gas passes through the air inlet of the lower valve body 71. l The gas flows into the overflow pressure stabilizing device 7 and passes through the small hole O and the central hole P of the valve core 72 to reach the bottom surface q. At this time, as the gas pressure in the buffer chamber exceeds the set pressure, the gas pressure exceeds the force of the spring 73, causing the valve core 72 to move axially, thus opening the air inlet of the lower valve body 71. l The gas outlet m is connected, and the high-pressure gas overflows and is discharged from the m hole.

[0040] When the automatic weapon 2 recoils to the limit stroke, the piston guide rod 31 touches the k surface of the exhaust valve core 61, causing the exhaust valve core 61 to move along its axial direction, so that the exhaust hole C on the pneumatic buffer cylinder 5 and the i hole on the exhaust valve core are connected, and the gas in the buffer chamber is quickly discharged.

[0041] During the process from the projectile's movement to the gas vent a and the piston rod 31's movement to compress the exhaust valve core 61, the recoil force acting on the weapon launching platform 1 includes the spring force and the gas pressure in the buffer chamber. Since the spring force has low stiffness and changes little, the gas pressure in the buffer chamber is also regulated by the overflow pressure stabilizing device 7 to keep its pressure stable. Therefore, during the recoil process of the automatic weapon 2, the recoil force remains basically stable.

[0042] After the gas in the buffer chamber is discharged, the automatic weapon 2 moves forward and returns to its original position. At this time, the only force acting on the automatic weapon 2 is the spring force, which is relatively small and can prevent the forward speed from being too fast. Under the action of motion resistance, the automatic weapon can quickly stabilize.

[0043] During the various stages of weapon firing, the force acting on the automatic weapon 2 F The forces acting on weapon launch platform 1 and 2 F The situation is as follows: Initial stage: F 1=0, F 2=0N From projectile launch to the stage where the projectile passes through the gas port: F 1= F 2= F yy + kx The projectile passes through the gas port until its recoil velocity approaches zero. F 1= F 2= F yy + kx+Fq Automatic weapon recovery phase: F 1= F 2= F yy + kx In the formula F yy The preload of the compression spring 33, F Q To buffer the air chamber pressure, k is the stiffness of the compressed spring 33, and x is the recoil stroke of the automatic weapon 2.

[0044] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0045] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An active series-parallel type low-stability recoil buffer device, characterized in that, The system includes a weapon launching platform (1) and an automatic weapon (2). The automatic weapon (2) includes a receiver (21) and a tube body (22) mounted on the receiver (21). The receiver (21) is slidably connected to the weapon launching platform. A pneumatic buffer outer cylinder (5) is installed on the weapon launching platform (1). A bidirectional preload spring buffer (3) is installed on the tube body (22). The bidirectional preload spring buffer (3) is installed inside the pneumatic buffer outer cylinder (5). An exhaust device (6) and an overflow stabilizing device (7) are installed on the pneumatic buffer outer cylinder (5). A buffer cavity is reserved inside the pneumatic buffer outer cylinder (5). The buffer cavity is connected to the exhaust device (6) and to one side of the tube body (22).

2. The active series-parallel type low-stability recoil buffer device according to claim 1, characterized in that, The air guiding device (4) includes an air guiding hole (a), which is opened on the side wall of the tube body (22). A tube body air guiding interface (41) is installed on the air guiding hole (a). A one-way valve mounting hole (b) is opened on the side wall of the pneumatic buffer outer cylinder (5). A one-way valve (43) is installed in the one-way valve mounting hole (b). The one-way valve (43) is located on one side of the buffer chamber. The one-way valve (43) is connected to the tube body air guiding interface (41) through a flexible metal tube (42).

3. The active series-parallel type low-stability recoil buffer device according to claim 1, characterized in that, The bidirectional preloaded spring buffer (3) includes a piston guide rod (31), which is slidably connected to one end of the pneumatic buffer outer cylinder (5). A buffer device connector (23) is fixedly connected to one end of the piston guide rod (31) extending out of the pneumatic buffer outer cylinder (5). The buffer device connector (23) is fixedly connected to the tube body (22) and is located on the side away from the weapon launch platform (1). A piston is fixedly connected to one end of the piston guide rod (31), and the piston is sealed and movable within the buffer cavity. The other end of the piston guide rod (31)... A first adjusting nut (32) is threadedly connected to the outside of the first adjusting nut (32), and a stepped shaft (t) is fixedly connected to the outside of the first adjusting nut (32). The stepped shaft (t) is located close to the piston. A compression spring (34) is sleeved on the outside of the piston guide rod (31). A first retaining ring (33) and a second retaining ring (35) are abutted at both ends of the compression spring (34). The second retaining ring (35) abuts on the annular end face (g) of the pneumatic buffer outer cylinder (5). The first retaining ring (33) abuts on the front end face (h) of the pneumatic buffer outer cylinder (5). The first adjusting nut (32) is rotatably connected to the front end face (h).

4. The active series-parallel type low-stability recoil buffer device according to claim 1, characterized in that, The exhaust device (6) includes a passive buffer cylinder (64), which is connected to the buffer chamber. An exhaust hole (c) is provided on the side wall of the passive buffer cylinder (64), and an exhaust device mounting hole (d) is provided inside the passive buffer cylinder (64). The exhaust hole (c) is connected to the exhaust device mounting hole (d). An exhaust valve core (61) is movably disposed within the exhaust device mounting hole (d). An exhaust valve spring (62) abuts against the bottom surface of the exhaust valve core (61). The bottom end of the spring (62) abuts against the end cap (63), the end cap (63) is installed at the bottom end of the passive buffer cylinder (64), the center of the exhaust valve core (61) is provided with a central channel (j), the central channel (j) passes through the exhaust valve core (61), the part of the exhaust valve core (61) that extends into the buffer cavity is provided with a slope (k), the side wall of the exhaust valve core (61) is provided with a side hole (i), the axis of the side hole (i) and the exhaust hole (c) are located in the same plane and are parallel.

5. The active series-parallel type low-stability recoil buffer device according to claim 1, characterized in that, The overflow pressure stabilizing device (7) includes a lower valve body (71). An overflow pressure stabilizing device mounting hole (e) is provided at the end of the pneumatic buffer outer cylinder (5). The lower valve body (71) is installed in the mounting hole (e). An air inlet is provided on the side wall of the lower valve body (71). l ) and air outlet (m), the air inlet ( l The valve body (71) is connected to the buffer chamber, the air outlet (m) is connected to the outside, and an overflow pressure stabilizing component is installed inside the lower valve body (71).

6. The active series-parallel type low-stability recoil buffer device according to claim 5, characterized in that, The overflow voltage regulator includes a valve core (72), a central hole (n) is provided at one end of the lower valve body (71) away from the buffer chamber, the valve core (72) is sealed and movable in the central hole (n), a spring mounting hole (r) is provided on one side of the valve core (72) away from the lower valve body (71), a spring (73) is provided in the spring mounting hole (r), an upper valve body (74) is fixedly connected to the lower valve body (71), a second adjusting nut (75) is threaded to one end of the upper valve body (74) away from the lower valve body (71), and the spring (73) abuts against the second adjusting nut (75); The valve core (72) has a central damping hole (p) at one end near the buffer cavity. The central damping hole (p) is not connected to the spring mounting hole (r). The central damping hole (p) has an end face (q) at one end near the buffer cavity. The valve core (72) has a small hole (o) on its side wall. The small hole (o) is connected to the central damping hole (p). The small hole (o) and the air inlet (… l The axes of the air outlet (m) and the air vent (m) are located in the same plane.

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