Air gun trigger structure

Abstract

This invention discloses an air gun trigger structure, relating to the field of air guns, comprising: a gun body; an air hose connector disposed on the side of the gun body; a guide rod disposed within the gun body, with a spring 1 sleeved on the outer side of the guide rod; a hammer slidably disposed on the side end of the guide rod, with the hammer corresponding to the position of the air hose connector; a trigger hinged to the bottom of the gun body, with a spring 2 disposed between the gun body and the trigger; a restoring element hinged to the gun body, with a spring 3 disposed between the gun body and the restoring element, the bottom of the trigger contacting the top of the restoring element; a bridge plate hinged to the gun body, with a protrusion formed on the side of the bridge plate, and a spring 4 disposed between the bridge plate and the gun body; and a sear hinged to the gun body, with a spring 5 disposed between the sear and the gun body, the bottom of the sear having a groove that can contact the protrusion. This invention solves the "jamming" problem caused by the stringent timing requirements of component actions, susceptibility to wear, and spring fatigue in traditional semi-automatic air gun triggers.

Description

Technical Field

[0001] This invention relates to the technical field of air guns, and more specifically to an air gun trigger structure. Background Technology

[0002] Air rifle shooting, a sport demanding extremely high precision, holds an important place in both competitive and recreational activities. The reliability and handling of its firing mechanism directly impact an athlete's performance and results. The trigger mechanism, as the core component of the firing process, is responsible for releasing the charged hammer after the shooter pulls the trigger, thereby triggering the air valve and propelling the bullet. An excellent trigger system typically possesses a clear trigger point, consistent and smooth operating force, and stable firing performance even under prolonged or frequent use; these characteristics are crucial for competitive success.

[0003] In formal air rifle shooting competitions, athletes must fire a certain number of bullets at a target within a limited time and distance. The final score is calculated based on the ring values ​​of the bullets hitting the target. The target paper is usually divided into 10 rings, with the center being the highest score. The closer the bullet impact is to the bullseye, the higher the score.

[0004] Most semi-automatic air rifles on the market currently use a typical trigger structure, mainly including a trigger, movable pad, bridge plate, sear, and hammer. In the ready-to-fire state, the pulled-back hammer is held in place by the sear, while the bridge plate, under the action of a spring, holds the sear in place, forming a secondary safety to prevent accidental rotation. Upon firing, pulling the trigger causes the movable pad to rise, which in turn lifts the bridge plate, freeing it from the sear's restraint. The sear then rotates under its own spring, releasing the hammer and completing the firing.

[0005] However, this traditional structure exhibits certain technical limitations in practical use: its firing process relies on a relatively precise timing coordination between the movable pad, the bridge plate, and the sear. The trigger movement requires the movable pad to accurately and promptly lift the bridge plate, and the pressure of the movable pad on the bridge plate must be quickly released the instant the sear begins to rotate and release the hammer. With prolonged use, if the spring's elastic properties change due to long-term compression or fatigue, or if normal wear occurs in the hinge components, the force and timing of the movable pad's action on the bridge plate may deviate. If the movable pad fails to separate from the bridge plate promptly after firing, or if it maintains residual pressure on the bridge plate, it may restrict the bridge plate's reset, thus interfering with the sear's normal rotation, ultimately affecting hammer release and leading to firing failure, commonly known as a "jamming" phenomenon.

[0006] Based on this, the present invention provides an air gun trigger structure. Summary of the Invention

[0007] To address the problems mentioned in the background art, the present invention provides an air gun trigger structure. By introducing a linkage structure with a convex-concave fit between an idler and a bridge plate-sealer, the "jamming" problem caused by the stringent timing requirements of component actions, susceptibility to wear, and spring fatigue in traditional semi-automatic air gun triggers is fundamentally solved.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an air gun trigger structure, comprising a gun body; an air hose connector disposed on the side of the gun body; a guide rod disposed within the gun body, with a spring 1 sleeved on the outer side of the guide rod; a hammer slidably disposed on the side end of the guide rod, and the hammer being positioned corresponding to the air hose connector; a trigger hinged to the bottom of the gun body, with a spring 2 disposed between the gun body and the trigger; a restoring member hinged to the gun body, with a spring 3 disposed between the gun body and the restoring member, and the bottom of the trigger contacting the top of the restoring member; a bridge plate hinged to the gun body, with a protrusion formed on the side of the bridge plate, and a spring 4 disposed between the bridge plate and the gun body; and a sear hinged to the gun body, with a spring 5 disposed between the sear and the gun body, and a groove formed at the bottom of the sear, the groove being able to contact the protrusion.

[0009] Furthermore, a buckle plate is provided at the bottom of the trigger via a vertical pole.

[0010] Furthermore, the air hose connector includes a connector disposed on the side of the gun body for connecting an air canister; the outer side of the connector has a discharge hole that communicates with an exhaust passage inside the gun body; a firing rod slidably disposed within the connector, with its side end arranged inside the gun body and corresponding to the position of the hammer; a baffle disposed in the middle of the firing rod; and an elastic element disposed within the connector for driving the baffle to block the passage of the discharge hole; when the hammer strikes the firing rod, it can push the baffle to move, thereby opening the discharge hole.

[0011] Furthermore, the gas tank and the connector are detachably connected.

[0012] Furthermore, the hammer has an outlet on the side near the firing rod.

[0013] Furthermore, a slide bar is slidably disposed inside the gun body, the slide bar is connected to the hammer via a connecting rod, and a handle is provided on the side of the slide bar.

[0014] Compared with the prior art, the air gun trigger structure provided by the present invention fundamentally solves the "jamming" problem caused by the strict timing requirements of component actions, easy wear and spring fatigue of traditional semi-automatic air gun triggers by introducing a linkage structure of idler and bridge plate-sealer convex and concave cooperation.

[0015] During the process of the high-pressure gas pushing the hammer to reset after firing, as long as the trigger is kept pressed, the idler will automatically lift up under the action of its own spring and firmly press against the sear with its side, locking the sear in a certain vertical position. At this time, no matter what posture or angle the hammer is in when it resets and impacts, the end point of its trajectory will inevitably meet the front protrusion of the sear fixed by the idler and complete the engagement. This mechanical design completely eliminates the possibility of the sear getting stuck and unable to return to the position due to improper pressure of the movable pad or asynchronous reset of the components in the traditional structure, which would cause the hammer to "slip" or fail to engage.

[0016] This design simplifies the transmission chain, making the release action of the sear more direct and certain, and improving the reliability and stability of the firing action.

[0017] In addition, this structure not only enables automatic hammer reset and continuous firing, ensuring smooth operation of the semi-automatic air gun, but also provides multiple safety features in the ready-to-fire state and during firing through mechanical linkage, enhancing safety. At the same time, its structural optimization also brings the advantages of a smoother trigger feel and easier maintenance, thus improving the overall performance of the air gun and the user experience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the air gun trigger structure in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure on the other side of the air gun trigger structure in an embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional schematic diagram of the air gun trigger structure in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the air gun trigger structure in an embodiment of the present invention;

[0023] Figure 5 This is a frontal schematic diagram of the internal structure of the air gun trigger in an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the trigger mechanism of an air gun in the prior art.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Gun body; 2. Gas pipe connector; 200. Connector; 201. Exhaust port; 202. Firing lever; 203. Baffle; 204. Elastic element; 3. Guide rod; 4. Spring 1; 5. Hammer; 6. Trigger; 7. Spring 2; 8. Idle element; 9. Bridge plate; 10. Protrusion; 11. Spring 4; 12. Sear; 13. Spring 5; 14. Groove; 15. Buckle plate; 16. Exhaust port; 17. Slide rod; 18. Handle; 19. Spring 3; 20. Trigger A; 21. Movable pad; 22. Bridge plate A; 23. Sear A; 24. Hammer A. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] As attached Figure 1 To be continued Figure 6 As shown:

[0029] The present invention provides an air gun trigger structure, including a gun body 1, an air tube connector 2, a guide rod 3, a hammer 5, a trigger 6, an idler 8, a bridge plate 9, and a sear 12;

[0030] The air hose connector 2 is located on the side of the gun body 1; the guide rod 3 is located inside the gun body 1, and a spring 4 is sleeved on the outer side of the guide rod 3; the hammer 5 is slidably located on the side end of the guide rod 3, and the hammer 5 corresponds to the position of the air hose connector 2; the trigger 6 is hinged to the bottom of the gun body 1, and a spring 7 is provided between the gun body 1 and the trigger 6; the idler 8 is hinged to the gun body 1, and a spring 19 is provided between the gun body 1 and the idler 8, with the bottom of the trigger 6 contacting the top of the idler 8; the bridge plate 9 is hinged to the gun body 1, and a protrusion 10 is formed on the side of the bridge plate 9, with a spring 11 provided between the bridge plate 9 and the gun body 1; the sear 12 is hinged to the gun body 1, and a spring 13 is provided between the sear 12 and the gun body 1, with a groove 14 at the bottom of the sear 12, which can contact the protrusion 10.

[0031] Specifically, the elastic force of spring 2 7 is much greater than that of spring 3 19. In the normal state where the trigger 6 is not pulled, the bottom of the trigger 6 is always pressed against the side of the idler 8.

[0032] Existing semi-automatic air gun trigger mechanism components, such as Figure 6 As shown, it mainly includes trigger A20, movable pad 21, bridge plate A22, sear A23 and hammer A24;

[0033] The trigger A20 is hinged to the gun body and is the control lever directly operated by the shooter. When pulled, its specific contour at the top pushes other components. The movable pad 21 is hinged to the side of the trigger A20 and is maintained in relative position with the trigger A20 by a spring. When the trigger A20 moves, it acts as an intermediate part for transmitting the action and directly contacts the bridge plate A22. The bridge plate A22 is hinged to the gun body and has a tendency to rotate under the action of its own spring. Its main function is to lock the sear A23 in the ready-to-fire state and release the restriction on the sear A23 when firing. The sear A23 is hinged to the gun body and is a key safety part that directly holds the hammer A24. When it is struck by the hammer A24 or when the trigger A20 is activated, it will rotate to release the hammer A24. The hammer A24 can slide back and forth under the drive of the guide rod and spring. After being pulled back and released, its kinetic energy is used to strike the gas valve to achieve firing.

[0034] The principle is as follows:

[0035] Ready to fire: Hammer A24 is pulled back, strikes and lifts the front end of sear A23, and then moves forward under its own spring force. The hook (or protrusion) at its tail engages with sear A23. At this time, bridge plate A22 rotates under the action of spring, and its front end abuts against the corresponding part of sear A23, forming a second safety to prevent sear A23 from accidentally rotating and releasing hammer A24.

[0036] Firing process: Pulling the trigger A20 causes the trigger A20 to rotate, which in turn lifts the movable pad 21 on it. The movable pad 21 directly lifts the bridge plate A22. After the bridge plate A22 rotates, its front end separates from the contact point with the sear A23, releasing the restriction on the sear A23. Subsequently, the sear A23 rotates under the action of its own spring, thereby releasing the hammer A24 and completing the firing.

[0037] However, the entire firing process depends on the strict timing of the actions of the movable pad 21, bridge plate A22, and sear A23. The movement of the trigger A20 must be precisely and instantaneously lifted by the movable pad 21 to lift the bridge plate A22. At the moment when the sear A23 rotates to release the hammer, the pressure of the movable pad 21 must be released in time, otherwise it will hinder the normal movement of the sear A23. After long-term use, the elastic coefficient of the spring may change, or the parts may experience minor wear. This will cause the force or timing of the movable pad 21 on the bridge plate A22 to change. If the movable pad 21 fails to disengage from the bridge plate A22 in time after firing, or continues to exert undue pressure on the bridge plate A22, it will "press" against the bridge plate A22, thereby indirectly "jamming" the sear A23, preventing it from rotating smoothly to release the hammer A24, ultimately leading to firing failure (jamming).

[0038] Therefore, the present invention improves the air gun trigger structure in the prior art, and its working process is as follows:

[0039] Push the hammer 5 backward, causing it to slide backward along the guide rod 3 and compress the spring 4. The hammer 5 strikes the sear 12, forcing the front end of the sear 12 to rotate upward (while compressing the spring 13). At this time, the contact part between the bridge plate 9 and the sear 12 separates (i.e., the protrusion 10 disengages from the groove 14). The bridge plate 9 rotates under the action of the spring 11, and its front end moves downward, maintaining a certain free stroke relative to the top of the trigger 6. Subsequently, the hammer 5 slides forward under the restoring force of the spring 4, and its side protrusion engages with the front end of the sear 12, forming a ready-to-fire state.

[0040] When trigger 6 is pulled, the top of trigger 6 rotates upward, lifting bridge plate 9 (during this process, idler 8 also rotates upward under the action of spring 19), causing the protrusion 10 on bridge plate 9 to rotate together. When the protrusion 10 rotates to align with the groove 14 of sear 12, sear 12 releases the constraint on hammer 5. Hammer 5 rushes forward under the thrust of spring 4, hitting gas pipe connector 2, causing high-pressure gas to be released and propelling the bullet to fire.

[0041] The high-pressure gas released by the air tube connector 2 is used partly to push the bullet, and partly to push the hammer 5 in the opposite direction, so that it resets and impacts the sear 12 again. With the trigger 6 pressed, the bridge plate 9 is always held by the trigger 6 and cannot rotate. At the same time, the idler 8, not pressed by the trigger 6, rotates under the action of the spring 19, and its top side abuts against the sear 12 to prevent it from rotating and falling. During the reset process, the hammer 5 compresses the spring 4. After the airflow impact ends, the spring 4 extends and pushes the hammer 5 forward to engage with the sear 12 again, completing one engagement.

[0042] When the trigger 6 is released, the trigger 6 is reset under the action of the second spring 7, and its bottom presses against the idler 8 again, causing the idler 8 to rotate and disengage from the sear 12. After the sear 12 is no longer obstructed, the bridge plate 9 is also rotated and reset under the drive of the fourth spring 11. The protrusion 10 returns to its initial position and contacts the sear 12, locking the sear 12 again to prevent it from falling.

[0043] After that, the trigger 6 is pulled again. The trigger 6 rotates and lifts the bridge plate 9, so that the protrusion 10 is aligned with the groove 14 of the sear 12. The sear 12 then falls down, releasing the hammer 5 and completing the preparation for the next round of firing.

[0044] This design, by introducing a linkage structure in which the idler 8 and the bridge plate 9-sealer 12 engage in a convex-concave fit, fundamentally solves the "jamming" problem caused by the strict timing requirements of the components, easy wear and spring fatigue of traditional semi-automatic air gun triggers.

[0045] During the process of the high-pressure gas pushing the hammer 5 to reset after firing, as long as the trigger 6 remains pressed, the idler 8 will automatically lift under the action of the spring 19 and firmly press against the sear 12 with its side, locking the sear 12 in a certain vertical position. At this time, no matter what posture or angle the hammer 5 is in when resetting and impacting, the end point of its trajectory will inevitably meet the front protrusion of the sear 12 fixed by the idler 8 and complete the engagement. This design completely eliminates the possibility of the sear 12 getting stuck and unable to rotate back into place due to improper pressure of the movable pad 21 or asynchronous reset of the components in the traditional structure, which would cause the hammer 5 to "slip" or fail to engage.

[0046] This design simplifies the transmission chain, making the release action of the sear 12 more direct and certain, and improving the reliability and stability of the firing action.

[0047] Furthermore, this structure not only enables automatic reset and continuous firing of the hammer 5, ensuring smooth operation of the semi-automatic air rifle, but also provides multiple safety features during the ready-to-fire state and firing process through mechanical linkage, enhancing user safety. Simultaneously, its structural optimization also results in a smoother trigger 6 feel and easier maintenance, ultimately improving the air rifle's performance and user experience.

[0048] like Figures 1 to 5 As shown, a buckle plate 15 is installed at the bottom of the trigger 6 via a vertical pole.

[0049] Specifically, the user holds the gun body 1 and can turn the trigger 6 by pulling the pull plate 15 with their finger.

[0050] like Figure 3 As shown, the tracheal connector 2 includes a connector 200, a firing lever 202, a baffle 203, and an elastic element 204;

[0051] The connector 200 is located on the side of the gun body 1 and is used to connect the gas cylinder. The outer side of the connector 200 has a discharge hole 201, which communicates with the exhaust passage inside the gun body 1. The firing rod 202 is slidably disposed inside the connector 200, and the side end of the firing rod 202 is arranged inside the gun body 1 and corresponds to the position of the hammer 5. The baffle 203 is disposed in the middle of the firing rod 202. The elastic element 204 is disposed inside the connector 200 and is used to drive the baffle 203 to block the passage of the discharge hole 201. When the hammer 5 strikes the firing rod 202, it can push the baffle 203 to move so that the discharge hole 201 opens.

[0052] Specifically, the elastic element 204 can be a spring or a spring telescopic rod.

[0053] Specifically, the gas canister is installed on the side of the connector 200 and kept connected. When the hammer 5 strikes the firing rod 202, the firing rod 202 moves backward, causing the baffle 203 to disengage from the channel of the discharge hole 201. At the same time, the elastic element 204 is compressed. At this time, the high-pressure gas in the gas canister is released instantly. Part of the gas impacts the hammer 5, and the other part directly acts on the bullet in the barrel, pushing the bullet to complete the firing.

[0054] In one embodiment of the present invention, the gas tank and the connector 200 are detachably connected.

[0055] In one embodiment of the present invention, such as Figure 3 As shown, the hammer 5 has a vent 16 on the side near the firing rod 202, through which residual gas impacting the hammer 5 is discharged.

[0056] In one embodiment of the present invention, such as Figure 2 and Figure 4 As shown, a slide bar 17 is slidably installed inside the gun body 1. The slide bar 17 is connected to the hammer 5 through a connecting rod. A handle 18 is provided on the side of the slide bar 17.

[0057] Specifically, during the initial preparation or manual loading stage of the air gun, the user can slide the handle 18 backward to move the slide bar 17 and the hammer 5 connected to it backward together. This action compresses the spring 4 on the guide rod 3 and moves the hammer 5 to the position where it interacts with the sear 12, thereby completing the first engagement of the hammer 5 and putting the mechanism into the ready-to-fire state.

[0058] Working principle and usage process of this invention:

[0059] The user pulls the handle 18 backward, which drives the hammer 5 to move backward through the slide bar 17 and the connecting rod, compressing the spring 4. The hammer 5 strikes the sear 12 and makes it rotate, and the bridge plate 9 moves accordingly. After being released, the hammer 5 rushes forward under the action of the spring 4, and its protrusion is caught by the front end of the sear 12, and the system enters the ready-to-fire state.

[0060] Pulling the trigger 6 lifts the bridge plate 9, aligning the protrusion 10 on the bridge plate 9 with the groove 14 of the sear 12. The sear 12 is then released from its restraint and falls, releasing the hammer 5. The hammer 5 is propelled forward at high speed by the full force of the spring 4, violently striking the firing lever 202 in the air pipe connector 2.

[0061] The firing lever 202 is impacted and moves backward, opening the vent 201. The high-pressure gas in the gas tank is released instantly. Part of the gas directly propels the bullet through the exhaust channel inside the gun body 1; the other part of the gas impacts the hammer 5 in the opposite direction, causing it to move backward and reset.

[0062] While the trigger 6 is held down, the hammer 5 is pushed back by the gas and compresses the spring 4 again. At the same time, the idler 8 rotates under the action of the spring 19 and presses against the sear 12, keeping it upright. After the gas flow ends, the spring 4 extends again, pushing the hammer 5 forward and automatically re-engaging it with the sear 12, which is still being pressed against by the idler 8, completing one cycle and preparing for the next firing.

[0063] After the trigger 6 is released, each component resets under the action of the corresponding spring, and the bridge plate 9 re-locks the sear 12. At this time, simply pull the trigger 6 again to repeat the above firing and automatic engagement cycle to achieve semi-automatic firing.

[0064] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually.

[0065] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here.

[0066] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An air gun trigger structure, characterized in that, include: Gun body (1); An air pipe connector (2) is provided on the side of the gun body (1); A guide rod (3) is installed inside the gun body (1), and a spring (4) is sleeved on the outside of the guide rod (3). The hammer (5) is slidably disposed on the side end of the guide rod (3), and the hammer (5) corresponds to the position of the air pipe connector (2); The trigger (6) is hinged to the bottom of the gun body (1), and a spring (7) is provided between the gun body (1) and the trigger (6). The idler (8) is hinged inside the gun body (1), and a spring (19) is provided between the gun body (1) and the idler (8). The bottom of the trigger (6) is in contact with the top of the idler (8). A bridge plate (9) is hinged inside the gun body (1). A protrusion (10) is formed on the side of the bridge plate (9). A spring (11) is provided between the bridge plate (9) and the gun body (1). A sear (12) is hinged inside the gun body (1). A spring (13) is provided between the sear (12) and the gun body (1). A groove (14) is provided at the bottom of the sear (12), and the groove (14) can contact the protrusion (10).

2. The air gun trigger structure according to claim 1, characterized in that, The bottom of the trigger (6) is provided with a buckle plate (15) via a pole.

3. The air gun trigger structure according to claim 1, characterized in that, The tracheal connector (2) includes: A connector (200) is provided on the side of the gun body (1) for connecting a gas cylinder. The outer side of the connector (200) is provided with a discharge hole (201), which is connected to the exhaust passage inside the gun body (1). The firing lever (202) is slidably disposed in the connector (200), and the side end of the firing lever (202) is arranged in the gun body (1) and corresponds to the position of the hammer (5); A baffle (203) is disposed in the middle of the firing lever (202); An elastic element (204) is disposed within the connector (200) for driving the baffle (203) to block the passage of the discharge hole (201); When the hammer (5) strikes the firing rod (202), it can push the baffle (203) to move so that the discharge port (201) opens.

4. The air gun trigger structure according to claim 3, characterized in that, The gas tank and the connector (200) are detachably connected.

5. The air gun trigger structure according to claim 3, characterized in that, The hammer (5) has an outlet (16) on the side near the firing rod (202).

6. The air gun trigger structure according to claim 1, characterized in that, The gun body (1) is slidably provided with a slide rod (17), which is connected to the hammer (5) via a connecting rod. A handle (18) is provided on the side of the slide rod (17).

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