Percussion structure for preventing falling percussion for gas cylinder gun in non-on-hook state
By using the cooperation mechanism of the transmission block and sear, the problem of accidental firing when the gas-filled air rifle is dropped in the non-hold-down state is solved, and the safety and reliability of the air rifle when dropped under any conditions are achieved without increasing the additional cost.
Patent Information
- Application Number
- CN202520316112.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing gas-operated air rifles are prone to accidental firing when dropped from a non-load-bearing position, posing a safety hazard, and are only effective within a certain range of gas pressure and altitude.
A firing structure for preventing drop firing of a gas cylinder gun in the off-hook state has been designed. Through the cooperation of the transmission block and the sear, the hammer is prevented from continuing to strike the valve stem when the gas gun falls. The rotation mechanism of the sear and the transmission block is used to prevent accidental firing. The structure is simple and does not add any extra parts.
At any gas pressure and altitude, the air gun can prevent accidental firing when dropped, ensuring safety, reliability, and low cost.
Smart Images

Figure CN223710402U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas-fired air rifle technology, specifically a firing structure for a gas cylinder gun that prevents it from being dropped and fired when not in a latched-off state. Background Technology
[0002] Currently, the vast majority of gas-operated air rifles on the market do not have a structure or function to prevent the air rifle from firing during a drop when it is not held open. Some air rifles can only barely prevent firing when dropped within a certain height at a certain gas pressure value, and still pose a safety hazard. Summary of the Invention
[0003] To solve the above-mentioned technical problems, this utility model provides a firing structure for preventing the air gun from firing when it is not in a drop state. It can ensure that the air gun will not fire when it is dropped, which is safe, reliable and low cost.
[0004] The technical solution is as follows: a firing structure for preventing drop firing of a gas cylinder gun in a non-hanging-up state, comprising a gas cylinder and a base, wherein a hammer connected to a hammer spring is disposed inside the gas cylinder, the hammer being used to strike a valve stem, and a trigger is mounted on the base. The base is characterized by having a rotatable sear and a rotatable transmission block mounted on it. The sear is rotatably disposed via a sear pin and connected to a sear torsion spring. The sear has an upper protrusion that engages with the flange at the rear end of the hammer and a lower protrusion that engages with one end of the transmission block. The other end of the transmission block is connected at the upper part to a transmission block spring mounted on the base and at the lower part to an impact head corresponding to the trigger.
[0005] A further feature is that limit posts are provided above and below the transmission block.
[0006] By adopting this utility model, the hammer will squeeze the hammer spring and rotate the sear when the air gun falls backward and is impacted. The hammer will be blocked by the transmission block and the hammer will be blocked by the upper protrusion of the sear, preventing it from moving forward. The air gun enters the pre-lock state, preventing accidental firing. It is safe and reliable, and does not add any extra parts, so the cost of use is low. Attached Figure Description
[0007] Figure 1 This is a diagram showing the non-idle state.
[0008] Figure 2 A diagram illustrating the pre-hang-up state after a fall;
[0009] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0010] Figure 4 for Figure 2Enlarged view of point B in the middle;
[0011] Figure 5 for Figure 2 Enlarged diagram of point C in the middle. Detailed Implementation
[0012] See Figure 1 , Figure 2 ,picture, Figure 3 , Figure 4 , Figure 5 As shown, a non-load-bearing anti-drop firing structure for a gas cylinder gun includes a cylinder 1 and a base 2. The base 2 is secured by a fixing screw 6. A hammer 4, connected to a hammer spring 3, is installed inside the cylinder 1. The hammer 4 strikes a valve stem 5. A rotatable trigger 7, a sear 8, and a transmission block 9 are mounted on the base 2. The trigger 7 is connected to a trigger torsion spring 10. The sear 8 is rotatably mounted via a sear pin 11 and connected to a sear torsion spring 12. The sear 8 has an upper protrusion 8 that mates with the flange at the rear end of the hammer 4. 1. A lower protrusion 8-2 that mates with one end of the transmission block 9. The transmission block 9 is installed via a transmission block pin 15. The other end of the transmission block 9 is connected to a transmission block spring 13 mounted on the base at the top and an impact head 7-1 corresponding to the trigger 7 at the bottom. Limiting posts 14 are provided above and below the transmission block 9. When the trigger 7 is pressed, the impact head 7-1 pushes the transmission block 9 to rotate clockwise, compressing the transmission block spring 13. When the trigger 7 is released, the transmission block spring 13 is released, which can push the transmission block 9 to rotate counterclockwise.
[0013] Figure 1 , Figure 3 , Figure 5 In the non-hanging state, the hammer spring 3 exerts a forward force on the hammer 4, causing the front end of the hammer 4 to contact the rear end face of the valve stem 5; the b surface of the lower protrusion 8-2 at the lower end of the sear 8 contacts the d surface at the upper end of the transmission block 9, and the sear 7 can rotate freely.
[0014] Figure 2 , Figure 4 , Figure 5 If the air gun is in Figure 1When the air gun falls backward, it hits the ground. The hammer 4 will move backward due to inertia, and the hammer spring 3 will continue to be compressed, exerting a forward force. The sear 8 will rotate counterclockwise under the action of the sear torsion spring 12 when it is impacted backward by the hammer 4. The transmission block 9 will disengage from the sear 8 and rotate counterclockwise under the action of the transmission block spring 10. The hammer 4 will move forward under the action of the hammer spring 3. The flange at the rear end of the hammer 4 will be caught by the upper protrusion 8-1 on the sear 8. The sear 8 will rotate clockwise until the front c surface of the transmission block 9 contacts the a surface of the lower protrusion 8-2 at the lower end of the sear 8. At this point, the sear 8 will be hooked and will not be able to continue rotating clockwise or counterclockwise. The hammer 4 will stop moving, and the front end of the hammer 4 will disengage from the rear end of the valve stem 1. The valve stem 5 will not be opened, and the air gun will enter the pre-lock state to prevent accidental firing.
[0015] The firing mechanism designed in this application is not only simple in structure, but also ensures that the air gun will not fire when dropped, regardless of the gas pressure and altitude, even when it is not in a hanging-up state. This firing mechanism incorporates a new structural design and adjustment of its components to achieve the function of preventing drop firing.
Claims
1. A firing structure for preventing drop firing in the off-hook state of a gas cylinder gun, comprising a gas cylinder and a base, wherein a hammer connected to a hammer spring is disposed within the gas cylinder, the hammer striking a valve stem, and a trigger is mounted on the base, characterized in that, The base is equipped with a rotatable sear and a rotatable transmission block. The sear is rotatably mounted via a sear pin and connected to a sear torsion spring. The sear is provided with an upper protrusion that engages with the flange at the rear end of the hammer and a lower protrusion that engages with one end of the transmission block. The other end of the transmission block is connected at the top to a transmission block spring mounted on the base and at the bottom to an impact head corresponding to the trigger.
2. The firing structure for preventing drop firing in the off-hook state of a gas cylinder gun according to claim 1, characterized in that, Limiting posts are provided above and below the transmission block.