Gas cylinder mounting structure of air pistol

Abstract

The gas cylinder mounting structure comprises a gun body with a gas cylinder mounting cavity, one end of the gas cylinder mounting cavity is provided with a gas inlet structure connected with the top of a gas cylinder in a matched mode, and the other end of the gas cylinder mounting cavity is provided with a pushing mechanism for pushing the gas cylinder towards the gas inlet structure. The gas inlet structure comprises a gas inlet valve seat and a pricking needle installed in the gas inlet valve seat, a sealing ring matched with the outer wall of the gas cylinder for sealing is arranged in the gas inlet valve seat, and the sealing ring is located in front of the pricking needle. According to the gas cylinder installation structure of the gas pistol, the gas cylinder and the gas inlet structure can be conveniently connected in a sealed mode.

Description

Technical Field

[0001] This utility model relates to an air cylinder mounting structure for an air pistol, belonging to the field of air gun technology. Background Technology

[0002] Carbon dioxide kinetic energy air guns use compressed carbon dioxide gas as power and have advantages such as long range, low noise, low recoil, ease of use, convenient maintenance, and high safety. They are gradually becoming a popular sport shooting and recreational item. To facilitate the installation of the gas cylinder, a gas cylinder mounting structure has emerged, as disclosed in CN221484330U. This structure features an open gas cylinder mounting cavity, with an air intake structure at one end that connects to the top of the gas cylinder, and a pushing mechanism at the other end that pushes the gas cylinder in conjunction with the air intake structure. The air intake structure includes an air intake... The valve, needle, and needle sleeve are part of a sealing mechanism that requires the gas cylinder opening to be tightly sealed against the needle sleeve. This places high demands on the precision of the needle length and the pushing mechanism's stroke to the gas cylinder. If the needle is too long, it may puncture the gas cylinder before the cylinder is properly sealed against the needle sleeve, resulting in gas leakage. If the needle is too short, it may fail to puncture the gas cylinder. If the pushing mechanism's stroke to the gas cylinder is slightly insufficient, it will create a gap between the gas cylinder opening and the needle sleeve, causing gas leakage. If the stroke is too large, it may deform or damage the needle sleeve, affecting the seal. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a gas cylinder mounting structure for an air pistol, which facilitates the sealed connection between the gas cylinder and the air intake structure and can overcome the shortcomings of the prior art.

[0004] The technical solution of this utility model is: a gas cylinder mounting structure for an air pistol, including a gun body with a gas cylinder mounting cavity, one end of the gas cylinder mounting cavity is provided with an air intake structure that is connected to the top of the gas cylinder, and the other end is provided with a pushing mechanism that pushes the gas cylinder toward the air intake structure. The air intake structure includes an air intake valve seat and a needle installed in the air intake valve seat. The air intake valve seat is provided with a sealing ring that is sealed to the outer wall of the gas cylinder, and the sealing ring is located in front of the needle.

[0005] Furthermore, the pushing mechanism includes a push rod assembly that is spirally connected to the other end of the mounting cavity and contacts the bottom of the gas cylinder. By rotating the push rod assembly, the gas cylinder in the mounting cavity can be pushed towards the air inlet structure.

[0006] The further push rod assembly includes a hollow base spirally connected to the gun body, and a push rod slidably connected in the base. The push rod and the base are in a stop-and-go engagement. When the base rotates and moves, it can drive the push rod to move together towards the air intake structure. The base and the gun body cooperate to stop the gas cylinder. When the gas cylinder is pushed to the first position by the rotation of the push rod assembly, the base and the gun body stop it from being pushed further towards the air intake structure. The push rod pushes the gas cylinder to the second position. In the first position, the gas cylinder is sealed with the sealing ring and the needle does not pierce it. In the second position, the needle pierces it.

[0007] Furthermore, the push rod has a receiving end that passes through the base, the receiving end abutting against the end that passes through the base, and the receiving end has a concave receiving surface that mates with the bottom of the gas cylinder.

[0008] Furthermore, the push rod assembly has an elastic reset mechanism, which includes an elastic element that generates elastic force through elastic deformation. During the process of the push rod pushing the gas cylinder upward to the second position, the elastic element deforms to generate elastic force. When the external force is removed, the elastic force pushes the push rod back to the position before it was pushed.

[0009] The further pushing mechanism includes a positioning component and a base component. The base component slides onto the other end of the mounting cavity to push the gas cylinder toward the air intake structure. The positioning component is movably mounted on the gun body and cooperates with the base component to resist, so that the base component is kept in the position after being pushed.

[0010] When the base assembly moves upward to push the gas cylinder to the first position, the positioning component blocks the base assembly from moving downward. The base assembly can then continue to move upward to push the gas cylinder to the second position. In the first position, the gas cylinder is sealed with the sealing ring and the needle does not pierce it. In the second position, the needle pierces it.

[0011] The positioning component further includes an elastic element and a push block. The push block is slidably connected to the elastic element within the gun body. The elastic force generated by the deformation of the elastic element tends to push the push block to a position that blocks the base assembly. During the upward movement of the base assembly, which pushes the gas cylinder to the first position, the push block is blocked, preventing its movement. When the base assembly moves upward and pushes the gas cylinder to the first position, the block is released from its blocking action. Under the action of the elastic force, the push block moves to the position that blocks the base assembly, preventing the base assembly from moving downward. The base assembly further includes a cylinder holder that mates with the bottom of the gas cylinder, and the cylinder holder engages with the gun body for blocking.

[0012] Furthermore, the base assembly includes a base and a cylinder holder on the mounting base that mates with the bottom of the gas cylinder, the cylinder holder engaging with the gun body for blocking.

[0013] Furthermore, it includes an elastic reset mechanism II comprising several elastic elements II. When the base assembly pushes the gas cylinder upward, the elastic elements II deform to generate elastic force. When the external force is removed, the elastic force pushes the base assembly downward to reset to the position before the push.

[0014] By implementing this utility model, after the gas cylinder is placed in the gas cylinder installation cavity, the top of the gas cylinder is pushed by the pushing mechanism to enter the air inlet valve seat, first sealing with the sealing ring, and then continuing to move upward to puncture the gas cylinder with the piercing needle. The requirements for the precision of the piercing needle length and the control of the stroke of the pushing mechanism are low, which makes it easy to achieve a sealed connection between the gas cylinder and the air inlet structure and makes it less likely to have a poor seal. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the air intake structure of this utility model;

[0016] Figure 2 A schematic diagram of the gun body with a threaded push mechanism;

[0017] Figure 3 This is a schematic diagram of the threaded push mechanism in the first position;

[0018] Figure 4 This is a schematic diagram of the threaded push mechanism in the second position.

[0019] Figure 5 A schematic diagram of the gun body with a snap-fit ​​push mechanism;

[0020] Figure 6 This is a schematic diagram showing the push block not obstructing the base assembly.

[0021] Figure 7 This is a schematic diagram of the push block blocking the base assembly;

[0022] Figure 8 This is a schematic diagram of the snap-fit ​​push mechanism in the first position;

[0023] Figure 9 This is a schematic diagram of the snap-on push mechanism in the second position.

[0024] The figure shows: 1. Gas valve seat; 2. Gas cylinder; 3. Sealing ring; 4. Needle; 5. Base; 6. Push rod; 7. Positioning part; 8. Receiving end; 9. Return spring; 10. Push block; 11. Compression spring; 12. Bottle holder; 13. Base; 14. Compression spring II. Detailed Implementation

[0025] Embodiments of this utility model: such as Figure 1As shown, an air cylinder mounting structure for an air pistol includes a gun body with an air cylinder mounting cavity. One end of the air cylinder mounting cavity is provided with an air intake structure that connects to the top of the air cylinder, and the other end is provided with a pushing mechanism that pushes the air cylinder 2 towards the air intake structure. The air intake structure includes an air intake valve seat 1 and a needle 4 installed in the air intake valve seat 1. The air intake valve seat 1 is provided with a sealing ring 3 that seals against the outer wall of the air cylinder 2. The sealing ring 3 is located in front of the needle 4 and is spaced at a certain distance. In use, the air cylinder 2 is placed in the air cylinder mounting cavity, and the pushing mechanism pushes the air cylinder 2 upward. The top of the air cylinder 2 enters the air intake valve seat 1 and first seals with the sealing ring 3 before continuing to move upward so that the needle 4 punctures the air cylinder 2. This reduces the requirements for the accuracy of the needle 4 length and the control of the pushing mechanism stroke, making it easier to achieve a sealed connection between the air cylinder 2 and the air intake structure, and reducing the likelihood of incomplete sealing.

[0026] like Figures 2 to 4 As shown, the pushing mechanism includes a push rod assembly that is helically connected to the gun body and contacts the bottom of the gas cylinder 2. By rotating the push rod assembly, the gas cylinder 2 in the gas cylinder mounting cavity can be moved towards the air intake structure to achieve the positioning and installation of the gas cylinder 2. For ease of use, the push rod assembly includes a hollow base 5 that is helically connected to the gun body. The push rod 6 is slidably connected to the base 5. The push rod 6 and the base 5 are in abutting cooperation. Specifically, the upper end of the push rod 6 is a receiving end 8 that passes through the base 5 and contacts the bottom of the gas cylinder 2. The receiving end 8 has a concave receiving surface that mates with the bottom of the gas cylinder 2, so that it limits the gas cylinder 2 when in contact with it. The receiving end 8 and the top of the base 5 are in abutting cooperation, so that when the base 5 is rotated on the gun body, the base 5 is also moved along with it. The gun body is also equipped with a corresponding limiting mechanism. The limiting mechanism includes a positioning part 7 located on the base 5 and cooperating with the gun body to block. When installing the gas cylinder 2, the gas cylinder 2 is placed in the gas cylinder installation cavity. The push rod assembly rotates and moves upward, pushing the gas cylinder 2 upward. When the gun body blocks the positioning part 7, it prevents the push rod assembly from moving upward and keeps the gas cylinder 2 in the first position. In this position, the top of the gas cylinder 2 is located in the air inlet valve seat 1 and is sealed with the sealing ring 3, while the piercing needle 4 does not pierce it. When firing, a tap pushes the push rod 6 to move upward relative to the base 5, causing the gas cylinder 2 to move upward to the second position. At this time, the piercing needle 4 pierces the gas cylinder 2, and the high-pressure gas passes through the air inlet valve seat 3 and fires the bullet. This realizes the two-step completion of the pre-loading and piercing of the gas cylinder 2, which is safer.

[0027] As a preferred embodiment, the push rod assembly has an elastic reset mechanism, including a reset spring 9 installed in the base 5 and acting on the push rod 6. The reset spring 9 is the elastic element mentioned above. During the process of the push rod 6 pushing the gas cylinder 2 upward from the first position to the second position, the reset spring 9 is compressed. When the external force is removed, the reset spring 9 resets and pushes the push rod 6 downward and holds it at the position where the receiving end 8 abuts against the top of the base 5, keeping the push rod 6 stable and preventing it from shaking during use. In addition, to make the push rod assembly more stable when moving, the push rod 6 and the base 5 have a keyway structure that matches. The push rod 6 and the base 5 are in keyway cooperation. When the base 5 rotates, it drives the push rod 6 to rotate together and move as a whole.

[0028] like Figures 5 to 9 As shown, the pushing mechanism can also be in another form, such as including a positioning component and a base component. The base component slides in the gun body and moves upward to push the gas cylinder 2 towards the air intake structure. The positioning component is movably mounted on the gun body and cooperates with the base component to block it. By blocking the base component, the base component is kept in the position after being pushed. Specifically, the positioning component includes a push block 10, which slides in the gun body along a direction perpendicular to the movement of the base component. The base component slides up and down, and the push block 10 slides left and right. The push block 10 and the base component block each other and cooperate. Both have a matching slotted structure. When the push block 10 moves to the right, it releases the block from the base component, and the base component can move upward through the slot in the center of the push block 10. Before the gas cylinder 2 is pushed to the first position, it blocks the push block 10 to prevent it from moving. When the gas cylinder 2 is pushed up to the first position, the block 10 is released, and the push block 10 can move to the left to reset and block the base assembly, preventing the base assembly from moving down. This keeps the base assembly and the gas cylinder 2 in the first position. In this position, the top of the gas cylinder 2 is located inside the air inlet valve seat 1 and is sealed with the sealing ring 3, while the needle 4 does not pierce it. The base assembly can then continue to move up to push the gas cylinder 2 to the second position. In the second position, the needle 4 pierces the gas cylinder 2. The gas cylinder 2 is installed in the first position. When firing, the base assembly is pushed up again to push the gas cylinder 2 to the second position, improving safety.

[0029] As a preferred embodiment, the device includes several compression springs 11, which are elastic elements. The compression springs 11 are installed inside the gun body and connected to the push block 10. When the push block 10 moves to the right to release its obstruction of the base assembly, the compression springs 11 are compressed. During the process of the base assembly moving upward to the first position, it obstructs the push block 10, preventing the push block 10 from moving to the left to reset. When it moves upward to the first position, the obstruction is released, and the elastic force pushes the push block 10 to the position that obstructs the base assembly, thereby achieving automatic reset obstruction.

[0030] As a preferred embodiment, the base assembly includes a base 13 and a bottle holder 12 mounted on the base 13. The bottle holder 12 cooperates with the bottom of the gas cylinder 2 to limit its position, so that the gas cylinder 2 is placed stably. The bottle holder 12 cooperates with the gun body to resist and prevent the base assembly from separating from the gun body.

[0031] As a preferred embodiment, the device includes several compression springs 14 installed inside the gun body and connected to the base assembly. The compression springs 14 are elastic elements. When the base assembly pushes the gas cylinder 2 upward, the compression springs 14 are compressed. When the external force is removed, the compression springs 14 push the base assembly downward to reset to the position before the push. For example, after the base assembly moves upward to the second position, after the external force is removed, the base assembly is pushed downward to the first position. When the push block 10 does not block the base assembly, it moves downward to the position where the cylinder holder 12 blocks the gun body. The compression springs 14 ensure that the base assembly is stably installed on the gun body and will not shake during use.

Claims

1. A cylinder mounting structure for an air pistol, comprising a gun body having a cylinder mounting cavity, one end of the cylinder mounting cavity having an air intake structure that mates with the top of the cylinder, and the other end having a pushing mechanism for pushing the cylinder toward the air intake structure, the air intake structure comprising an air intake valve seat and a needle mounted in the air intake valve seat, characterized in that: The air inlet valve seat is provided with a sealing ring that fits and seals against the outer wall of the gas cylinder, and the sealing ring is located in front of the needle.

2. The air cylinder mounting structure for an air pistol according to claim 1, characterized in that: The pushing mechanism includes a push rod assembly that is spirally connected to the other end of the mounting cavity and contacts the bottom of the gas cylinder. By rotating the push rod assembly, the gas cylinder in the mounting cavity can be pushed to move towards the air inlet structure.

3. The air cylinder mounting structure for an air pistol according to claim 2, characterized in that: The push rod assembly includes a hollow base spirally connected to the gun body, and a push rod slidably connected in the base. The push rod and the base are in a stop-and-go engagement. When the base rotates and moves, it can drive the push rod to move together towards the air intake structure. The base and the gun body cooperate to stop the gas cylinder. When the gas cylinder is pushed to the first position by the rotation of the push rod assembly, the base and the gun body stop it from being pushed further towards the air intake structure. The push rod pushes the gas cylinder to the second position. In the first position, the gas cylinder is sealed with the sealing ring, and the needle does not pierce it. In the second position, the needle pierces it.

4. The air cylinder mounting structure for an air pistol according to claim 3, characterized in that: The push rod has a receiving end that passes through the base, and the receiving end abuts against the end that passes through the base. The receiving end has a concave receiving surface that mates with the bottom of the gas cylinder.

5. The air cylinder mounting structure for an air pistol according to claim 3 or 4, characterized in that: The push rod assembly has an elastic reset mechanism, which includes an elastic element that generates elastic force through elastic deformation. During the process of the push rod pushing the gas cylinder to the second position, the elastic element deforms to generate elastic force. When the external force is removed, the elastic force pushes the push rod back to the position before it was pushed.

6. The air cylinder mounting structure for an air pistol according to claim 1, characterized in that: The pushing mechanism includes a positioning component and a base component. The base component slides onto the other end of the mounting cavity to push the gas cylinder toward the air intake structure. The positioning component is movably mounted on the gun body and cooperates with the base component to block it, so that the base component is kept in the position after being pushed.

7. The air cylinder mounting structure for an air pistol according to claim 6, characterized in that: When the base assembly moves upward and pushes the gas cylinder to the first position, the positioning component blocks the base assembly from moving downward. The base assembly can then continue to move upward and push the gas cylinder to the second position. In the first position, the gas cylinder is sealed with the sealing ring and the needle does not pierce it. In the second position, the needle pierces it.

8. The air cylinder mounting structure for an air pistol according to claim 7, characterized in that: The positioning component includes an elastic element and a push block. The push block is slidably connected to the elastic element in the gun body. The elastic force generated by the deformation of the elastic element tends to push the push block to the position that blocks the base assembly. During the process of the base assembly moving upward to push the gas cylinder to the first position, it blocks the push block to prevent it from moving. When the base assembly moves upward to push the gas cylinder to the first position, it releases the block. Under the action of the elastic force, the push block moves to the position that blocks the base assembly, preventing the base assembly from moving downward.

9. The air cylinder mounting structure for an air pistol according to claim 7, characterized in that: The base assembly includes a base and a cylinder holder on the mounting base that mates with the bottom of the gas cylinder. The cylinder holder works in conjunction with the gun body to provide resistance.

10. The air cylinder mounting structure of the air pistol according to any one of claims 7 to 9, characterized in that: The system includes an elastic reset mechanism 2 comprising several elastic elements 2. When the base assembly pushes the gas cylinder upward, the elastic elements 2 deform to generate elastic force. When the external force is removed, the elastic force pushes the base assembly downward to reset to the position before the push.

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