High-range and high-precision pneumatic air gun

Abstract

The invention discloses a high-range and high-precision pneumatic type air gun, and relates to the technical field of pneumatic guns, the high-range and high-precision pneumatic type air gun comprises a gun body, a gun handle, a sleeve, a trigger and a firing mechanism in linkage fit with the trigger, an upper rotating seat is arranged in the gun body, a gun barrel is connected to the front end of the upper rotating seat, an air cylinder is connected to the rear end of the upper rotating seat, and a magazine is arranged in the gun handle; an upper rotary rubber sheet is arranged in the upper rotary seat, and an adjusting assembly used for adjusting the tightness of the upper rotary rubber sheet is further arranged in the upper rotary seat. The air cylinder is provided with a chamber communicated with an inner cavity of the upper rotary rubber sheet, an air cutting valve is arranged in the chamber in a sliding mode, and the air cutting valve is provided with a rod portion and a head portion. Liquid carbon dioxide is vaporized, expanded and stabilized in the second-stage gas chamber and then released into a gas state, the gas pressure is improved, the bullet chamber-out speed and the acting cycle stability are improved, and meanwhile, the higher upward rotation effect is obtained by increasing the friction area between the bullet and the rubber when the bullet passes.

Description

Technical Field

[0001] The present invention relates to the technical field of pneumatic guns, and particularly to a high-range and high-precision pneumatic gun. Background Art

[0002] In the field of pneumatic guns, pneumatic guns powered by liquid carbon dioxide are widely used. In the prior art, when such pneumatic guns work, liquid carbon dioxide vaporizes and expands to act on the projectile or the cylinder to achieve the firing function. However, there are significant defects in this process. Due to the short working time, the situation often occurs that the liquid carbon dioxide does not completely vaporize before the work ends. This not only results in a low working pressure, but also causes the rapid release of the liquid carbon dioxide stock in the gas cylinder, and at the same time the magazine will quickly cool down. The rapid cooling of the magazine seriously affects the stability of the working cycle, making it difficult to ensure the overall performance of the pneumatic gun.

[0003] During the firing process of a pneumatic gun, in order to increase the range of the projectile, the upper rotation seat structure is often used to apply friction to the projectile to make it rotate, and then the Magnus effect is used to increase the flight lift of the projectile. However, when firing projectiles made of heavier materials such as steel balls, the existing upper rotation seat structure exposes obvious problems. On the one hand, due to insufficient friction, it is difficult to provide enough upper rotation force to make the projectile obtain an ideal rotation effect; on the other hand, heavy projectiles have a high demand for kinetic energy, and it is difficult to provide enough upper rotation force and airtightness, seriously affecting the pneumatic efficiency and range, and restricting the applicability and performance of the pneumatic gun when dealing with projectiles of different materials and weights. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-range and high-precision pneumatic gun to solve the problems raised in the above background art.

[0005] To solve the above technical problems, a high-range and high-precision pneumatic gun provided by the present invention includes a gun body, a gun handle, a trigger, a sleeve, and a firing mechanism linked and cooperated with the trigger. An upper rotation seat is arranged inside the sleeve. The front end of the upper rotation seat is connected to a barrel, and the rear end is connected to a cylinder. A magazine is arranged inside the gun handle;

[0006] An upper rotation rubber is arranged inside the upper rotation seat, and an adjusting component for adjusting the tightness of the upper rotation rubber is also arranged inside the upper rotation seat;

[0007] The cylinder has a chamber connected to the inner cavity of the upper rotation rubber. A gas-cutting valve is slidably arranged inside the chamber. The gas-cutting valve has a rod part and a head part. The rod part can slide along the axial direction of the cylinder. The head part is connected to one end of the rod part. The head part slides to block / conduct the front end of the chamber. A rubber piston for sealing the rear end is also installed inside the chamber;

[0008] An air supply channel is provided inside the magazine. The air supply channel has an air inlet end and an air outlet end communicating with the inner cavity of the cylinder. An air outlet valve and an air inlet valve are arranged on the path between the air outlet end and the air inlet end. A secondary air chamber is provided in the air supply channel above the air inlet valve.

[0009] Further, a convex block for pressing down the projectile is provided at the top of the inner side wall of the upper rotating rubber. The adjusting assembly includes an adjusting ring and an adjusting wheel. The adjusting ring is sleeved outside the upper rotating rubber, and the adjusting wheel is used to control the movement of the adjusting ring to tighten / loosen the upper rotating rubber.

[0010] Further, a rotating shaft is provided on the upper rotating seat. The adjusting wheel is mounted on the rotating shaft. An activity groove is further provided on the end face of the adjusting wheel. The adjusting ring has a transmission part, and the transmission part of the adjusting ring is slidably inserted into the inside of the activity groove.

[0011] Further, the air inlet valve has a cylindrical barrel structure. The outer wall of the air inlet valve fits with the inner wall of the air supply channel. A nozzle communicating with the secondary air chamber is recessed on the lower end face of the air inlet valve.

[0012] Further, a gas cylinder is also provided inside the magazine. The outlet end of the gas cylinder is communicated with the nozzle, and liquid carbon dioxide is stored inside the gas cylinder.

[0013] Further, a feeding channel for storing temporarily stored projectiles is also opened on the magazine. A projectile holding member is also provided on the magazine. The projectile holding member has a projectile holding nozzle capable of holding a single projectile. A projectile pushing rod for pushing the projectile in the projectile holding nozzle into the upper rotating rubber is provided below the cylinder.

[0014] Further, a limiting seat extending radially along its outer wall is provided on the upper rotating rubber. A limiting groove is penetrated and opened on the upper rotating seat, and the limiting seat is inserted into the inside of the limiting groove.

[0015] Further, the rear end of the cylinder is sealed by a rubber piston. The rubber piston includes a piston body, a locking bolt and a sealing ring. The piston body is installed inside the tail end of the sleeve. The locking bolt is installed on the outer wall of the piston body through the sealing ring, and the outer wall of the sealing ring fits with the inner wall of the cylinder.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In the present invention, a relatively large secondary air chamber is designed between the intake valve and the exhaust valve, enabling the liquid carbon dioxide in the gas cylinder to vaporize, expand, and stabilize the pressure in the secondary air chamber. When the gas is released through the exhaust valve, it is in a gaseous state, which can effectively improve the vaporization stability, relieve the cooling effect on the overall magazine caused by the gas being released as a gas each time, reduce the internal pressure of the magazine, enhance the stability of the working chamber pressure, output pressure, and the effective utilization rate of the liquid carbon dioxide gas. The application effect is obvious. While enabling the projectile to obtain a higher muzzle kinetic energy, the muzzle kinetic energy of the projectile fluctuates little each time it is fired, the shooting accuracy is high, and the same amount of gas in the gas cylinders on the market can effectively fire more projectiles, with lower consumption of the gas cylinder consumables.

[0018] 2. In the present invention, the pre-pressure in the gun barrel enables a certain amount of potential energy to be accumulated inside the cylinder and released instantaneously, converting the stored potential energy into a higher kinetic energy of the projectile. This cylinder pressurization significantly increases the kinetic energy of the projectile and can effectively offset the friction of the topspin rubber, solving the problem of jamming the projectile due to excessive topspin friction.

[0019] 3. In the present invention, a higher kinetic energy of the projectile is obtained through pre-pressurization of the cartridge chamber, and by increasing the topspin rubber, a larger contact area for applying friction to the projectile can be achieved, enabling the topspin rubber to apply a greater friction force and obtaining a greater topspin effect, offsetting the gravitational drop during long-distance flight, stabilizing the flight trajectory of the projectile, and extending the range. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is Figure 1 a schematic diagram of the sectional structure of;

[0022] Figure 3 is a schematic diagram of the connection structure between the magazine and the cylinder of the present invention;

[0023] Figure 4 is a schematic diagram of the structure of the topspin seat and the cylinder of the present invention;

[0024] Figure 5 is Figure 4 a schematic diagram of the sectional structure of;

[0025] Figure 6 is a schematic diagram of the structure of the topspin seat in the unadjusted state of the present invention;

[0026] Figure 7 is a schematic diagram of the structure of the topspin seat after adjustment of the present invention;

[0027] Figure 8 is a schematic diagram of the structure of the magazine of the present invention;

[0028] Figure 9It is a schematic diagram of the cross-sectional structure of the magazine in the present invention.

[0029] In the figure: 1. gun body; 2. gun handle; 3. trigger; 4. gun barrel; 5. top screw seat; 6. top screw rubber; 7. cylinder; 8. rubber piston; 801. plug body; 802. locking bolt; 803. sealing ring; 9. gas cut-off valve; 10. adjusting ring; 11. adjusting wheel; 12. movable groove; 13. firing mechanism; 14. magazine; 15. air outlet; 16. air outlet valve; 17. bullet feeding channel; 18. bullet holding piece; 19. gas cylinder; 20. air inlet valve; 21. secondary air chamber; 22. air inlet end; 23. sleeve. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1-9 The present invention provides a technical solution: a high-range and high-precision pneumatic air gun, comprising a gun body 1, a gun handle 2, a trigger 3, a sleeve 23 and a firing mechanism 13 linked with the trigger 3, an upper rotating seat 5 is arranged inside the sleeve 23, a gun barrel 4 is connected to the front end of the upper rotating seat 5, and a cylinder 7 is connected to the rear end, and a magazine 14 is arranged inside the gun handle 2;

[0032] The upper spin seat 5 is provided with an upper spin rubber 6 inside, and the upper spin seat 5 is also provided with an adjustment component for adjusting the tightness of the upper spin rubber 6;

[0033] The cylinder 7 has a chamber connected to the inner cavity of the upward-spinning rubber 6, and a cut-off valve 9 is slidably arranged inside the chamber. The cut-off valve 9 has a rod and a head. The rod can slide along the axial direction of the cylinder 7, and the head is connected to one end of the rod. The head slides to block / conduct the front end of the chamber. A rubber piston 8 is also installed in the chamber to seal the rear end thereof.

[0034] An air supply channel is provided inside the magazine 14, and the air supply channel has an air inlet end 22 and an air outlet end 15 connected to the inner cavity of the cylinder 7, an air outlet valve 16 and an air inlet valve 20 are provided on the path between the air outlet end 15 and the air inlet end 22, and a secondary air chamber 21 is provided in the air supply channel above the air inlet valve 20.

[0035] Specifically, aiming at the problem of poor existing vaporization efficiency, the present invention optimizes the traditional vaporization structure: a secondary gas chamber 21 is designed between the intake valve 20 and the outlet valve 16, so that the liquid carbon dioxide vaporizes, expands and stabilizes the pressure in the secondary gas chamber 21, and then is released as a gas, increasing the gas pressure, enhancing the muzzle velocity of the projectile and the stability of the working cycle;

[0036] Aiming at the problem that the existing upper rotation seat 5 structure has an insignificant upper rotation effect on heavy projectiles, the present invention improves the internal structures of the upper rotation rubber 6, the cylinder 7 and the gas cut-off valve 9, and adopts a sealed chamber system. Initial pressurization is achieved by presetting the projectile friction. The tail of the cylinder 7 is sealed by a rubber piston 8. An outlet rubber is installed inside the outlet end 15 of the magazine 14. The cylinder 7 and the magazine 14 are hermetically sealed by interference extrusion with the outlet rubber of the magazine 14. When shooting, the magazine 14 releases gas into the chamber. When the chamber pressure rises to the point where the pressure of the gas cut-off valve 9 is greater than the friction between the projectile and the upper rotation rubber 6, the push rod pushes the projectile into the upper rotation rubber 6 and releases gas to accelerate the projectile. At the same time, an adjustment assembly is adopted to increase the contact area with the upper rotation rubber 6 when pressing down, thereby increasing the friction area between the projectile and the rubber when passing through, and obtaining a stronger upper rotation effect.

[0037] Refer to Figure 5 、 Figure 6 and Figure 7 As shown in, at the top of the inner side wall of the upper rotation rubber 6, there is a convex block for pressing down the projectile. The adjustment assembly includes an adjustment ring 10 and an adjustment wheel 11. The adjustment ring 10 is sleeved outside the upper rotation rubber 6, and the adjustment wheel 11 is used to control the movement of the adjustment ring 10 to tighten / loosen the upper rotation rubber 6.

[0038] At the same time, the upper rotation adjustment adopts the design of adjusting the upper rotation of the adjustment ring 10, replacing the traditional design of adjusting the upper rotation with a lever; compared with the lever, the design of the adjustment ring 10 increases the contact area with the upper rotation rubber 6 when pressing down, thereby increasing the friction area between the projectile and the upper rotation rubber 6 when passing through, generating greater friction force, and thus obtaining a stronger upper rotation effect; this design of the adjustment ring 10 can also make the pressure received by the projectile more uniform, so as to generate upper rotation more stably and effectively, making the trajectory of the projectile more stable during flight.

[0039] This improved structure can provide sufficient upper rotation and higher muzzle kinetic energy for projectiles made of heavier materials such as steel balls, thereby extending their effective range. At the connection position between the barrel 4 and the cylinder 7, a sealing structure and structural reinforcement are added, improving the pneumatic efficiency, enabling the system to withstand higher kinetic energy, ensuring reliable performance during each shooting, and enhancing the service life and accuracy of the air gun.

[0040] It should be noted that: The upper rotation adjusting ring 10 of the upper rotation seat 5 structure can adjust the downward pressure exerted by the upper rotation surface inside the upper rotation rubber 6 on the projectile, thereby changing the frictional force obtained by the projectile and achieving different flight trajectories. In this design, the adjusting assembly includes an upper rotation adjusting wheel 11 and an upper rotation adjusting ring 10. Different from the upper rotation adjusting structures on the traditional market, this design adopts an annular downward pressure structure instead of a cylindrical or spherical structure. This annular design can minimize the excessive deformation of the upper rotation rubber 6 during the compression process, ensuring the consistency and reliability when the projectile passes through the upper rotation rubber 6. More importantly, the annular structure ensures the uniform compression of the upper rotation surface of the upper rotation rubber 6, making the contact between the upper rotation surface and the projectile more stable, significantly increasing the effective area and time of the upper rotation acting on the projectile. Therefore, this design can generate a higher upper rotation on the projectile, further improving the flight distance and ballistic stability of the projectile.

[0041] It has been verified that the structure of the present invention can ensure an increase in the effective number of firings when using a 12g carbon dioxide gas cylinder to launch 4.5mm steel projectiles. The muzzle kinetic energy fluctuation of the first 40 projectiles is less than 10%, the maximum range can reach 80m, and the accuracy within 30m can reach a circular dispersion with a diameter of 30cm.

[0042] In addition, in the traditional air gun carbon dioxide magazine 14, when the liquid carbon dioxide gas in the gas cylinder 19 does work, there is only a very small vaporization space in the path part. Although it can improve the vaporization efficiency, the improvement is not obvious. The structure designs a larger secondary gas chamber 21 between the intake valve 20 and the outlet valve 16, allowing the liquid carbon dioxide in the gas cylinder 19 to vaporize and expand to stabilize the pressure in the secondary gas chamber 21 and be in a gaseous state when released at the outlet valve 16. This can effectively improve the vaporization stability, relieve the gas from being released as a gas each time, reduce the cooling effect of the released gas on the overall magazine 14, stabilize the internal pressure of the magazine 14, and improve the stability of the working chamber pressure, output pressure, and the effective utilization rate of the liquid carbon dioxide gas. The application of this structure in a 4.5mm steel ball gun has an obvious improvement effect. It can enable the projectile to obtain a higher muzzle kinetic energy while having a small fluctuation in the muzzle kinetic energy of each projectile fired, high shooting accuracy, and can effectively fire more projectile times with the same amount of gas in the gas cylinder 19 on the market, and the consumption of the gas cylinder 19 is lower.

[0043] In the traditional air gun and the upper rotation seat 5 structure of the air gun, the gas directly acts on the spherical projectile, and the gas energy in the cylinder 7 is gradually converted into kinetic energy through the barrel 4. In this design, the pre-pressure in the gun chamber enables a certain amount of potential energy to be accumulated inside the cylinder 7 and released instantaneously, converting the stored potential energy into a higher kinetic energy of the projectile. This pressurization of the cylinder 7 significantly increases the kinetic energy of the projectile, can effectively offset the frictional force of the upper rotation rubber 6, and solve the problem of jamming the projectile due to too large upper rotation frictional force.

[0044] The new designed topspin rubber 6. Compared with the traditional air gun products on the market, in the present invention, higher muzzle energy of the projectile is obtained through pre-pressurizing the chamber, and the contact area between the topspin rubber 6 and the projectile where a greater frictional force can be applied is increased, enabling the topspin rubber 6 to apply a greater frictional force, achieving a higher topspin effect, counteracting the gravitational drop during long-distance flight, stabilizing the flight trajectory of the projectile and extending the range.

[0045] Refer to Figure 6 and Figure 7 On the topspin seat 5, a rotating shaft is provided, the adjusting wheel 11 is installed on the rotating shaft, and an activity groove 12 is further provided on the end face of the adjusting wheel 11. The adjusting ring 10 has a transmission part, and the transmission part of the adjusting ring 10 is slidably inserted into the interior of the activity groove 12.

[0046] Specifically, the adjusting wheel 11 rotates around the rotating shaft. Since the transmission part of the adjusting ring 10 is slidably inserted into the activity groove 12 on the end face of the adjusting wheel 11, the circular motion of the adjusting wheel 11 is converted into the linear motion of the adjusting ring 10. The adjusting ring 10 is sleeved outside the topspin rubber 6, and its movement will squeeze or relax the topspin rubber 6, thereby changing the frictional force of the topspin rubber 6 on the projectile. This structural design makes the adjustment process smooth and has a relatively high adjustment accuracy.

[0047] Through the cooperation of the rotating shaft, the activity groove 12 and the transmission part of the adjusting ring 10, an efficient conversion from the rotation of the adjusting wheel 11 to the linear movement of the adjusting ring 10 is achieved, ensuring the stability and reliability of the adjustment process, enabling precise control of the tightness of the topspin rubber 6, providing appropriate topspin force for different shooting distances, and further improving the shooting performance and accuracy of the air gun.

[0048] Refer to Figure 9 The intake valve 20 has a cylindrical structure. The outer wall of the intake valve 20 fits with the inner wall of the air supply channel, and a nozzle communicating with the secondary air chamber 21 is concavely provided on the lower end face of the intake valve 20.

[0049] Specifically, the intake valve 20 has a cylindrical structure, and its outer wall fits with the inner wall of the air supply channel, ensuring good airtightness. The liquid carbon dioxide in the gas cylinder 19 enters the intake valve 20 through the nozzle and undergoes subsequent vaporization and other processes in the secondary air chamber 21. The nozzle communicates with the secondary air chamber 21, and the structural design of the intake valve 20 ensures that the liquid carbon dioxide can smoothly flow into the secondary air chamber 21 while preventing gas leakage.

[0050] The cylindrical intake valve 20 fits tightly with the air supply channel, improving the airtightness of the air supply system, reducing the possibility of gas leakage, ensuring that the liquid carbon dioxide can effectively enter the secondary air chamber 21 for vaporization, thereby enhancing the energy utilization efficiency and work stability of the entire air gun system, and contributing to increasing the muzzle velocity and range of the projectile.

[0051] Refer toFigure 9 , inside the magazine 14, a gas cylinder 19 is further provided. The outlet end of the gas cylinder 19 is communicated with a gas nozzle, and liquid carbon dioxide is stored inside the gas cylinder 19.

[0052] Specifically, the gas cylinder 19 stores liquid carbon dioxide, and its outlet end is communicated with the gas nozzle of the intake valve 20. When the air gun works, the liquid carbon dioxide in the gas cylinder 19 flows into the intake valve 20 through the gas nozzle under the action of pressure, and then enters the secondary air chamber 21. Inside the secondary air chamber 21, the liquid carbon dioxide begins to vaporize and expand under the influence of the environment and its own characteristics, providing power for the air gun to fire projectiles.

[0053] As a storage container for liquid carbon dioxide, the gas cylinder 19 provides a stable power source for the air gun system. Its cooperation with the secondary air chamber 21 and the intake valve 20 ensures that the liquid carbon dioxide can enter the power circulation system of the air gun orderly, effectively solving problems such as insufficient vaporization of liquid carbon dioxide and low working pressure in existing air guns, and improving the overall performance of the air gun.

[0054] Refer to Figure 3 , Figure 8 and Figure 9 , a feed channel 17 for storing temporarily stored projectiles is further opened on the magazine 14. A projectile holding member 18 is further provided on the magazine 14. The projectile holding member 18 has a projectile holding nozzle that can hold a single projectile. Below the air cylinder 7, a projectile pushing rod is provided for pushing the projectile in the projectile holding nozzle into the upper rotating rubber 6.

[0055] Specifically, the feed channel 17 on the magazine 14 is used to store temporarily stored projectiles. The projectile holding nozzle of the projectile holding member 18 can hold a single projectile. When the air gun is ready to fire, the projectile pushing rod below the air cylinder 7 moves forward, pushing the projectile in the projectile holding nozzle into the upper rotating rubber 6. After that, the projectile is pushed by the high-pressure gas in the air cylinder 7, obtains a rotating force after passing through the upper rotating rubber 6, and then shoots out from the barrel 4.

[0056] The arrangement of the feed channel 17 and the projectile holding member 18 realizes the orderly storage and precise supply of projectiles. The cooperation of the projectile pushing rod with them ensures that the projectiles can accurately enter the upper rotating seat 5, improves the feeding efficiency and shooting continuity of the air gun. This design helps to improve the shooting performance of the air gun, reduce feeding failures, and enhance the user experience.

[0057] Refer to Figure 5 , a limiting seat extending radially along the outer wall of the upper rotating rubber 6 is provided. A limiting groove is penetrated and opened on the upper rotating seat 5, and the limiting seat is inserted into the inside of the limiting groove.

[0058] Specifically, the limit seat on the outer wall of the topspin rubber sheet 6 is inserted into the limit groove of the topspin seat 5. When the adjusting ring 10 squeezes or relaxes it, the cooperation between the limit seat and the limit groove ensures that the topspin rubber sheet 6 can only deform in a limited direction, avoiding twisting or displacement of the topspin rubber sheet 6 during the adjustment process, and ensuring that the projectile can receive uniform and stable frictional force when passing through the topspin rubber sheet 6;

[0059] The structural design of the limit seat and the limit groove improves the stability and reliability of the adjustment process of the topspin rubber sheet 6, enabling the projectile to obtain a stable and appropriate topspin force when passing through the topspin rubber sheet 6, ensuring the stability of the projectile flight trajectory, and thus enhancing the shooting accuracy and range of the air gun.

[0060] Refer to Figure 5 , the rear end of the air cylinder 7 is sealed by a rubber piston 8. The rubber piston 8 includes a piston body 801, a locking bolt 802 and a sealing ring 803. The piston body 801 is installed inside the tail end of the sleeve 23, the locking bolt 802 is installed on the outer wall of the piston body 801 through the sealing ring 803, and the outer wall of the sealing ring 803 fits against the inner wall of the air cylinder 7.

[0061] Specifically, when there is high-pressure gas in the air cylinder 7, the rubber piston 8 can effectively seal the rear end of the air cylinder 7 to prevent gas leakage. When the sleeve 23 moves, the structural design of the rubber piston 8 enables it to adapt to the movement of the sleeve 23 while maintaining good sealing performance;

[0062] This structural design of the rubber piston 8 ensures good sealing at the rear end of the air cylinder 7, prevents high-pressure gas leakage, improves the pneumatic efficiency of the air gun system. At the same time, its installation method with the sleeve 23 enables it to stably play a sealing role during the shooting process of the air gun, contributing to enhancing the muzzle velocity of the projectile and the stability of the working cycle, and extending the service life of the air gun.

[0063] Working principle:

[0064] The feeding channel 17 on the magazine 14 stores and temporarily stores projectiles. The projectile holding nozzle of the projectile holding member 18 holds a single projectile tightly. The projectile pushing rod below the air cylinder 7 pushes the projectile in the projectile holding nozzle into the topspin rubber sheet 6. The adjusting wheel 11 of the adjusting assembly controls the movement of the adjusting ring 10. The adjusting ring 10 is sleeved outside the topspin rubber sheet 6. The tightness of the topspin rubber sheet 6 is adjusted by pressing or relaxing the adjusting ring 10. The convex block at the top of the inner side wall of the topspin rubber sheet 6 presses down the projectile, causing the projectile to rotate in the topspin rubber sheet 6;

[0065] Power and Firing Principle: The gas cylinder 19 stores liquid carbon dioxide, and its outlet end is connected to the nozzle on the lower end face of the intake valve 20. There is a secondary gas chamber 21 in the air supply channel above the intake valve 20. After the liquid carbon dioxide vaporizes, it enters the secondary gas chamber 21 and then passes through the air supply channel. At this time, the gas does not enter the cylinder 7 and is stored in the cavity between the outlet valve 16 and the intake valve 20. When firing, it enters the inner cavity of the cylinder 7 through the outlet valve 16 and the intake valve 20. When firing, the trigger 3 drives the firing mechanism 13 to release gas into the cartridge chamber. When the internal chamber pressure in the cartridge chamber rises to the point where the pressure of the gas cut-off valve 9 is greater than the frictional force between the projectile and the upper rotating rubber 6, the projectile pusher rod pushes the projectile into the upper rotating rubber 6 and releases gas to accelerate the projectile. The design of the pressure ring upper rotation adjustment is adopted to increase the contact area with the upper rotating rubber 6 when pressing down, thereby increasing the frictional area between the projectile and the upper rotating rubber 6 when passing through, and obtaining a stronger upper rotation effect.

[0066] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as a limitation of the present invention itself. Various changes in form and detail can be made without departing from the spirit and scope of the present invention defined by the appended claims.

Claims

1. A high-range and high-precision pneumatic air gun, comprising a gun body and an upper rotation seat (5) and a magazine (14) arranged inside the gun body. The front end of the upper rotation seat (5) is connected to a barrel (4), and the rear end is connected to a cylinder (7). It is characterized in that: An upper rotation rubber sheet (6) is arranged inside the upper rotation seat (5). At the top of the inner side wall of the upper rotation rubber sheet (6), there are bumps for pressing down the projectile. An adjusting component for adjusting the tightness of the upper rotation rubber sheet (6) is also arranged inside the upper rotation seat (5); The adjusting component includes an adjusting ring (10) and an adjusting wheel (11). The adjusting ring (10) is sleeved outside the upper rotation rubber sheet (6), and the adjusting wheel (11) is used to control the movement of the adjusting ring (10) to press / relax the upper rotation rubber sheet (6); The cylinder (7) has a chamber for the projectile that communicates with the inner cavity of the upper rotation rubber sheet (6). A gas-cutting valve (9) is slidably arranged inside the chamber for the projectile. The gas-cutting valve (9) has a rod part and a head part. The rod part can slide along the axial direction of the cylinder (7), and the head part is connected to one end of the rod part. The head part slides to block / conduct the front end of the chamber for the projectile. A rubber piston (8) for sealing the rear end is also installed inside the chamber for the projectile; An air supply channel is arranged inside the magazine (14). The air supply channel has an air inlet end (22) and an air outlet end (15) that communicates with the inner cavity of the cylinder (7). An air outlet valve (16) and an air inlet valve (20) are arranged on the path between the air outlet end (15) and the air inlet end (22). A secondary air chamber (21) is arranged inside the air supply channel above the air inlet valve (20).

2. The high-range and high-precision pneumatic air gun according to claim 1, characterized in that: The gun body includes a gun body (1), a gun handle (2), a trigger (3), a sleeve (23), and a firing mechanism (13) that is linked and cooperated with the trigger (3). The barrel (4), the upper rotation seat (5), and the cylinder (7) are all arranged inside the sleeve (23), and the magazine (14) is connected to the inside of the gun handle (2).

3. The high-range and high-precision pneumatic air gun according to claim 2, characterized in that: A rotating shaft is arranged on the upper rotation seat (5). The adjusting wheel (11) is installed on the rotating shaft. An activity groove (12) is also arranged on the end face of the adjusting wheel (11). The adjusting ring (10) has a transmission part, and the transmission part of the adjusting ring (10) is slidably inserted inside the activity groove (12).

4. A high-range and high-precision pneumatic air gun according to claim 1, characterized in that: The air inlet valve (20) has a cylindrical structure. The outer wall of the air inlet valve (20) fits with the inner wall of the air supply channel. A nozzle that communicates with the secondary air chamber (21) is recessed on the lower end face of the air inlet valve (20).

5. The high-range and high-precision pneumatic air gun according to claim 4, characterized in that: A gas cylinder (19) is also arranged inside the magazine (14). The outlet end of the gas cylinder (19) is communicated with the nozzle. Liquid carbon dioxide is stored inside the gas cylinder (19).

6. The high-range and high-precision pneumatic air gun according to claim 1, characterized in that: A feeding channel (17) for storing temporarily stored projectiles is also opened on the magazine (14). A projectile holding part (18) is also arranged on the magazine (14). The projectile holding part (18) has a projectile holding nozzle that can hold a single projectile. A projectile pushing rod for pushing the projectile in the projectile holding nozzle into the upper rotation rubber sheet (6) is arranged below the cylinder (7).

7. A high-range and high-precision pneumatic air gun according to claim 1, characterized in that: A limiting seat extending radially along the outer wall of the topspin rubber sheet (6) is provided, a limiting groove is penetrated and opened on the topspin seat (5), and the limiting seat is inserted into the inside of the limiting groove.

8. The high-range and high-precision pneumatic air gun according to claim 1, characterized in that: The rear end of the air cylinder (7) is sealed by a rubber piston (8). The rubber piston (8) includes a plug body (801), a locking bolt (802) and a sealing ring (803). The plug body (801) is installed inside the tail end of the sleeve (23), the locking bolt (802) is installed on the outer wall of the plug body (801) through the sealing ring (803), and the outer wall of the sealing ring (803) is attached to the inner wall of the air cylinder (7).

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