A multi-functional trigger structure for single-shot and burst switching

Abstract

The utility model relates to training gun technical field discloses a single shot multi -shot switch's multifunctional trigger structure, include: trigger shell, handle assembly, special-shaped cam, enable block, trigger assembly, wherein, through rotating handle assembly drive special-shaped cam rotation, drive enable block switches among three working positions: enable block is located first position, with the movement path of trigger no interference, trigger can continuous scratch and play, enable block is pushed to second position by special-shaped cam working camber surface, with the inner end portion friction contact of trigger, trigger needs to reset completely after each launch can scratch and play again, enable block is pushed to third position by special-shaped cam locking convex portion, its bottom is clamped into the above of the clamping position step of trigger, limit trigger rotation. The utility model structure is compact, reliable in operation, can clearly realize single shot, multi -shot and lock three mode switch.

Description

Technical Field

[0001] This utility model relates to the field of training gun technology, and in particular to a multi-functional trigger structure that switches between single-shot and burst-fire. Background Technology

[0002] Existing firing devices, such as water guns and soft bullet guns, typically have single-function trigger mechanisms. Some are single-shot only, requiring the trigger to be released after each shot to fire again; others are burst-fire only, allowing continuous firing by holding down the trigger. To improve playability and safety, triggers with single-shot / burst-fire switching functions have appeared on the market. However, existing switching mechanisms are often complex, unreliable, and lack clear switching feel, or are prone to shifting positions under vibration and impact. Furthermore, many triggers lack a clear locking position, failing to effectively prevent accidental firing when not in use, posing a safety hazard. Therefore, a multi-functional trigger structure is needed that is compact, reliable in switching, intuitive in operation, and has a locking function. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a multi-functional trigger structure that can switch between single-fire and burst-fire modes. It is compact, reliable in operation, and can clearly realize the switching between single-fire, burst-fire and lock modes, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a multi-functional trigger structure for single-shot / burst-fire switching, comprising: Trigger housing; The handle assembly includes a left shift handle and a right shift handle that pass through the side walls of the trigger housing. The right shift handle is provided with a plug post, and the end of the left shift handle is provided with a plug groove. The plug post is inserted into the plug groove and fixed by screws to realize the synchronous rotation of the left shift handle and the right shift handle. A special-shaped cam is fixedly sleeved on the outside of the plug-in post of the right gear shift handle and located inside the trigger housing. Its outer side is provided with a working arc surface, and the end of the working arc surface is provided with a locking protrusion. An enable block is movably disposed within the trigger housing, located on the front side of the irregular cam. The two side walls of the trigger housing are respectively provided with limiting mounting holes for the enable block to slide back and forth. The enable block is connected to an elastic positioning device, which provides the enable block with an elastic preload towards the irregular cam.

[0005] The trigger assembly includes a connecting shaft rotatably connected to the trigger housing, a trigger fixed to the connecting shaft, and a return torsion spring for driving the trigger to reset; the top of the trigger is provided with a rotating shaft, and the two side walls of the trigger housing are provided with guide holes for the rotation of the rotating shaft; the rear side of the top of the trigger is provided with a locking step. Specifically, the rotating handle assembly drives the shaped cam to rotate, which in turn drives the enable block to switch between three working positions: burst fire, single fire, and locked position. When the enable block is in the burst fire position, it does not interfere with the movement path of the trigger, and the trigger can be pulled continuously. When the enable block is pushed to the single fire position by the working arc surface of the shaped cam, it makes frictional contact with the inner end of the trigger, and the trigger must be fully reset after each firing before it can be pulled again. When the enable block is pushed to the locked position by the locking protrusion of the shaped cam, its bottom is locked above the locking step of the trigger, restricting the rotation of the trigger.

[0006] Furthermore, the elastic positioning device includes a fixed shaft and a retaining shaft arranged parallel to the enable block; a shifting torsion spring is sleeved on the fixed shaft, the bottom end of the shifting torsion spring is inserted into a through hole on the enable block, and the top end is tightly fitted to the bottom of the retaining shaft.

[0007] Furthermore, the return torsion spring includes two torsion spring bodies sleeved on the connecting shaft. One end of the two torsion spring bodies is connected and locked to the top of the trigger through a U-shaped connecting part, and the other end of the two torsion spring bodies forms a curved hook part. The bottom of the trigger housing is provided with a positioning shaft, and the hook part is hooked on the positioning shaft.

[0008] Furthermore, a friction damping mechanism is provided on the rear side of the irregular cam. The friction damping mechanism includes a fixed post and a limiting shaft fixed to the trigger housing. A baffle is rotatably connected to the fixed post, and a notch is provided at its top. A return torsion spring is sleeved on the fixed post at the notch position. One end of the return torsion spring is engaged with the bottom of the limiting shaft, and the other end is engaged with the bottom of the baffle, providing the baffle with a force pressing against the irregular cam. The side of the baffle is in elastic contact with the outer surface of the irregular cam in its natural state. A limiting post is sleeved on the outside of the fixed post. The limiting post is located outside the return torsion spring and is used to prevent the return torsion spring from sliding axially.

[0009] Furthermore, a switch circuit board is provided on the front side of the top of the trigger, and the switch circuit board is provided with a launch switch; when the trigger is pulled, the top of the trigger rotates forward to contact the launch switch, triggering a launch signal.

[0010] Furthermore, the left or right gear shift lever is marked with an indicator of the gear position. When the lever is rotated to different angles, the corresponding indicator aligns with the enable block position to indicate the current working mode. Beneficial effects

[0011] Compared with the prior art, the present invention has at least the following advantages: 1. This utility model reliably realizes the switching between three modes—continuous firing, single firing, and locking—through a simple mechanical structure, and has complete functions.

[0012] 2. Use the digital indicators on the handle to align with the position of the enable block to indicate the current mode, making it easy for users to understand.

[0013] 3. The use of a specially shaped cam and an enabler block, combined with a shifting torsion spring, ensures clear gear positions. An additional friction damping mechanism effectively prevents accidental gear slippage.

[0014] 4. The independent locking position can fundamentally prevent accidental activation, improving the safety of use and storage.

[0015] 5. All mechanisms are integrated within the trigger housing, with a reasonable layout, making it suitable for space-constrained applications. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This utility model Figure 1 A partial right-side view of the structure.

[0018] Figure 3 This utility model Figure 1 A schematic diagram of the internal structure.

[0019] Figure 4 This is a schematic diagram of the irregular cam structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the right gear shift handle of this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of the left gear shift handle of this utility model.

[0022] Figure 7 This diagram shows the structural positional relationship between the irregular cam, the enable block, and the trigger in the continuous firing state of this utility model.

[0023] Figure 8 This diagram shows the structural positional relationship between the irregular cam, the enable block, and the trigger in the single-fire state of this utility model.

[0024] Figure 9 This diagram shows the structural positional relationship between the irregular cam, the enable block, and the trigger in the locked state of this utility model.

[0025] The diagram is labeled as follows: 1-Trigger housing; 2-Mounting plate; 3-Connecting hole; 30-Absorbent surface; 31-Silicone sleeve; 4-Left gear shifting handle; 40-Left handle; 41-Plug-in block; 42-Plug-in groove; 43-Lock hole; 5-Right gear shifting handle; 50-Right handle; 51-Round rod; 52-Plug-in post; 53-Screw hole; 6-Irregular cam; 61-Locking protrusion; 610-Contact plane; 62-Working arc surface; 63-Reversing protrusion; 7-Gear shifting torsion spring; 70-Torsion spring body; 71-End rod; 8-Limiting shaft; 9-Fixing post; 10-Connecting rod; 11-Enabling block; 110-Through hole; 12-Clip shaft; 13- 14-Fixed shaft; 15-Guide hole; 16-Rotating shaft; 17-Positioning shaft; 18-Socket; 19-Switch circuit board; 190-Plug; 191-Connecting terminal; 192-Transmitting switch; 20-Trigger base; 200-Modular slot; 201-Fixed rod one; 202-Fixed rod two; 21-Trigger; 210-Locking step; 22-Reset torsion spring; 23-Connecting post one; 24-Baffle; 240-Notch; 25-Return torsion spring; 250-Torsion spring body; 251-Connecting part; 252-Hook part; 26-Connecting post two; 27-Limit mounting hole; 28-Connecting rod; 29-Limit post. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, a detailed description is provided below in conjunction with the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] See Figures 1-9A multi-functional trigger structure for single-shot / automatic firing switching includes: a trigger housing 1, a handle assembly, a shaped cam 6, an enable block 11, a trigger assembly, and an elastic positioning device. The trigger housing 1 includes two spaced-apart mounting plates 2 forming the two sidewalls of the trigger housing 1. A connecting post 1 23 and a connecting post 26 are provided between the rear and front ends of the two mounting plates. Screw holes are provided at both ends of the connecting post 1 23 and the connecting post 26. Connecting holes 3 are provided on the two mounting plates 2 corresponding to the positions of the connecting posts 1 23 and the connecting post 26. Screws pass through the connecting holes 3 and are threaded into the screw holes of the connecting posts 1 23 and the connecting post 26, thus connecting the connecting posts 1 23 and the connecting post 26 to the two mounting plates 2. The trigger housing 1 has a trigger base 20 at its bottom. One end of the trigger base 20 has a fixing rod 201 and the other end has a fixing rod 202. The fixing rod 201 and the fixing rod 202 have screw holes at both ends. The two side walls of the trigger housing 1 have connecting holes 3 corresponding to the fixing rod 201 and the fixing rod 202. The trigger base 20 is installed on the trigger housing 1 by screws passing through the connecting holes 3 and locking them into the screw holes of the fixing rod 201 and the fixing rod 202.

[0030] The handle assembly includes a left shift handle 5 and a right shift handle 4 passing through the side walls of the trigger housing 1. The right shift handle 5 includes a right handle 50. A round rod 51 is provided on the inner side of the right handle 50. The end of the round rod 51 is connected to a plug post 52. The plug post 52 is a rectangular rod or a square rod. The end of the insertion post 52 has a screw hole 53. The left shift lever 4 includes a left lever 40. The side of the left lever 40 is provided with a cylindrical insertion block 41. The insertion block 41 is provided with an insertion groove 42 that matches the end of the insertion post 52. A locking hole 43 is provided through the bottom of the insertion groove 42. The two side walls of the trigger housing 1 are respectively provided with mounting holes that match the round rod 51 and the insertion block 41 for insertion and connection. The shaped cam 6 is provided with a through hole 60 that matches the shape of the insertion post 52. When installing the lever assembly, the round rod of the right shift lever 5 and the insertion block of the left shift lever 4 are respectively inserted into the corresponding mounting holes on both sides of the trigger housing 1. The shaped cam 6 is sleeved on the outside of the insertion post 52 through the through hole 60, and the end of the insertion post 52 is inserted into the corresponding insertion groove 42. It is threadedly connected to the screw hole 53 through the locking hole 43 by a screw, so as to realize the synchronous rotation of the left shift lever 4 and the right shift lever 5.

[0031] In this utility model's technical solution, the irregularly shaped cam 6 is located inside the trigger housing 1, and its outer surface is provided with a working arc surface 62. The working arc surface 62 is provided with a locking protrusion 61 and a reversing protrusion 63, and the outer end of the locking protrusion 61 is a contact plane 610. The two side walls of the trigger housing 1 are respectively provided with limiting mounting holes 27 for the enabling block 11 to slide back and forth; the enabling block 11 has a flat plate structure, and its two sides are arc-shaped end faces. The enabling block 11 is movably disposed within the trigger housing 1, with both ends located within the limiting mounting holes 27 and on the front side of the irregular cam 6. The enabling block 11 is connected to an elastic positioning device, which includes a fixed shaft 13 and a retaining shaft 12 arranged parallel above the enabling block 11. The two ends of the fixed shaft 13 and the retaining shaft 12 are respectively fixed to two mounting plates 2 and are perpendicular to the mounting plates 2. A shifting torsion spring 7 is sleeved on the fixed shaft 13. The bottom end of the shifting torsion spring 7 is inserted into the through hole 110 provided on the enabling block 11, and the top end is tightly fitted to the bottom of the retaining shaft 12, providing the enabling block 11 with an elastic preload towards the irregular cam 6. When the irregular cam 6 rotates and pushes the enabling block 11, the enabling block 11 always adheres tightly to the outer surface of the irregular cam 6. When the irregular cam 6 rotates in the opposite direction, the preload of the shifting torsion spring 7 can assist the enabling block 11 to return to its original position synchronously with the irregular cam 6. In this embodiment, the shifting torsion spring 7 includes two torsion spring bodies 70 spaced apart and sleeved on the fixed shaft 13. The top ends of the two torsion spring bodies 70 are connected by end rods 71, and the bottom ends of the two torsion spring bodies 70 are respectively inserted into two spaced through holes 110 of the enabling block 11. The top ends are respectively tightly fitted to the bottom of the retaining shaft 12. A connecting rod 10 and a connecting rod 28 are spaced apart at the bottom of the irregular cam 6, and the connecting rod 10 and the connecting rod 28 connect the two mounting plates 2. The connecting rod 10 limits the counterclockwise rotation of the locking protrusion 61, and the connecting rod 28 limits the clockwise rotation of the reverse protrusion 63.

[0032] In this utility model, the trigger assembly includes a connecting shaft 16 rotatably connected to the trigger housing 1, a trigger 21 fixed to the connecting shaft 16, and a return torsion spring 25 for driving the trigger 21 to reset; the trigger base 20 is provided with a movable groove 200 for the trigger to pass through and move. The top of the trigger 21 is fixedly provided with a rotating shaft 15, and the two side walls of the trigger housing 1 are provided with arc-shaped guide holes 14 for the rotating shaft 15 to move, the center of the guide holes 14 coincides with the axis of the connecting shaft 16; the rear top of the trigger 21 is provided with a locking step 210; the inner end of the locking step 210 is a right-angle platform, and the sharp corner of the right-angle platform is slightly rounded. The return torsion spring 25 includes two torsion spring bodies 250 sleeved on the connecting shaft 16. One end of the two torsion spring bodies 250 is connected by a U-shaped connecting part 251, which is snapped onto the top of the trigger 21. The other end of the two torsion spring bodies 250 forms a bent hook part 252. The bottom of the trigger housing 1 is provided with a positioning shaft 17, and the hook part 252 is hooked onto the positioning shaft 17. A switch circuit board 19 is provided on the front top of the trigger 21. The switch circuit board 19 is provided with a firing switch 192 and a connecting terminal 191. Both ends of the switch circuit board 19 are respectively provided with plugs 190, and the mounting plate is provided with corresponding matching plug holes 18. The switch circuit board 19 is positioned and installed by inserting the plugs 190 into the plug holes 18. The switch circuit board 19 is connected to the firing control circuit board provided in the training gun through the connecting terminal 191 and the lead wire. The firing control circuit board is existing technology and is used to receive the switching signal of the switch circuit board for firing. Under normal conditions, both ends of the rotating shaft 15 are located at the rear end of the guide hole 14. When the trigger 21 is pulled, the trigger 21 rotates with the connecting shaft 16. The rotating shaft 15 rotates about the central axis of the connecting shaft 16. During rotation, both ends of the rotating shaft 15 move along the guide hole 14 to the front end of the guide hole. The top of the trigger 21 rotates forward until it contacts the launch switch 192 and presses the launch switch 192, thereby triggering the launch signal.

[0033] A friction damping mechanism is provided on the rear side of the irregular cam 6. The friction damping mechanism includes a fixed post 9 and a limiting shaft 8 fixed to the trigger housing 1. A baffle 24 is rotatably connected to the fixed post 9. The baffle 24 has a notch 240 at its top. A return torsion spring 22 is sleeved on the fixed post 9, corresponding to the notch position of the baffle 24. A limiting post 29 is sleeved on the outside of the fixed post 9, located outside the return torsion spring 22, to prevent the return torsion spring 22 from sliding axially. One end of the return torsion spring 22 is engaged at the bottom of the limiting shaft 8, and the other end is engaged at the bottom of the baffle 24, providing the baffle 24 with a force pressing against the irregular cam 6. The front side of the baffle 24 is in elastic contact with the outer surface of the irregular cam 6 in its natural state.

[0034] The left gear shift lever 4 or the right gear shift lever 5 is marked with indicators 0, 1, and 2 to indicate the gear position. When the left lever 40 or the right lever 50 is rotated to different angles, the corresponding indicator aligns with the position of the enable block 11 to indicate the current working mode. In this embodiment, there are three working modes: burst fire mode, single fire mode, and lock-up mode, corresponding to indicators 1, 2, and 0, respectively, and corresponding to the three working positions of the enable block 11: burst fire position, single fire position, and lock-up position. Specifically, as shown... Figure 7 As shown, enable block 11 is in the burst fire position, which does not interfere with the movement path of trigger 21, allowing trigger 21 to be pulled continuously, thus entering burst fire mode; as Figure 8 As shown, rotating the left handle 40 or the right handle 50 counterclockwise pushes the enable block 11 to the single-fire position by the working arc surface of the shaped cam 6. The right-angle platform at the inner end of the trigger 21 forms a one-way limiting fit with the arc end face of the enable block 11. When the trigger is pulled, the slightly rounded arc surface at the end of the right-angle platform can slide along the arc surface of the enable block 11, successfully triggering the firing. After the trigger is released, the return torsion spring 25 will automatically pull the trigger back to its original position. If you want to pull the trigger again without fully releasing the trigger 21, the right-angle surface (the vertical end face after the rounded transition) on the trigger 21 will directly press against the arc end face of the enable block 11 and be firmly blocked. Only when the trigger 21 is fully released and reset, and the right-angle surface leaves the enable block 11, can the rounded arc surface slide along it again when pulled next time, so that firing can be achieved again, realizing single-fire. Trigger 21 must be fully reset after each shot before it can be pulled again; at this time, it is in single-fire mode. Continue to rotate the left handle 40 or the right handle 50 counterclockwise, as... Figure 9 As shown, the enable block 11 is pushed to the locked position by the locking protrusion 61 of the shaped cam 6, and the end of the enable block 11 is pressed against the contact plane 610. The connecting rod 10 limits the locking protrusion 61, restricting it from continuing to rotate counterclockwise. At this time, the bottom of the enable block 11 is engaged above the locking step 210 of the trigger 21, restricting the rotation of the trigger 21. In specific implementation, the rotating handle assembly drives the shaped cam 6 to rotate, driving the enable block 11 to switch between three working positions: burst fire, single fire, and locked position. The reset torsion spring 22 presses the baffle against the shaped cam, suppressing accidental rotation of the shaped cam, ensuring that the firing mode remains consistent after switching, and improving the reliability of mode switching.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-functional trigger structure for switching between single-shot and burst-fire, characterized in that, include: Trigger housing; The handle assembly includes a left shift handle and a right shift handle that pass through the side walls of the trigger housing. The right shift handle is provided with a plug post, and the end of the left shift handle is provided with a plug groove. The plug post is inserted into the plug groove and fixed by screws to realize the synchronous rotation of the left shift handle and the right shift handle. A special-shaped cam is fixedly sleeved on the outside of the plug-in post of the right gear shift handle and located inside the trigger housing. Its outer side is provided with a working arc surface, and the end of the working arc surface is provided with a locking protrusion. An enable block is movably disposed within the trigger housing, located on the front side of the irregular cam. The two side walls of the trigger housing are respectively provided with limiting mounting holes for the enable block to slide back and forth. The enable block is connected to an elastic positioning device, which provides the enable block with an elastic preload towards the irregular cam. The trigger assembly includes a connecting shaft rotatably connected to the trigger housing, a trigger fixed to the connecting shaft, and a return torsion spring for driving the trigger to reset; the top of the trigger is provided with a rotating shaft, and the two side walls of the trigger housing are provided with guide holes for the rotation of the rotating shaft; the rear side of the top of the trigger is provided with a locking step. Specifically, the rotating handle assembly drives the shaped cam to rotate, which in turn drives the enable block to switch between three working positions: burst fire, single fire, and locked position. When the enable block is in the burst fire position, it does not interfere with the movement path of the trigger, and the trigger can be pulled continuously. When the enable block is pushed to the single fire position by the working arc surface of the shaped cam, it makes frictional contact with the inner end of the trigger, and the trigger must be fully reset after each firing before it can be pulled again. When the enable block is pushed to the locked position by the locking protrusion of the shaped cam, its bottom is locked above the locking step of the trigger, restricting the rotation of the trigger.

2. The multi-functional trigger structure for single-shot / burst-fire switching according to claim 1, characterized in that, The elastic positioning device includes a fixed shaft and a locking shaft arranged parallel to the enable block; a gear-adjusting torsion spring is sleeved on the fixed shaft, the bottom end of the gear-adjusting torsion spring is inserted into a through hole on the enable block, and the top end is tightly fitted to the bottom of the locking shaft.

3. The multi-functional trigger structure for single-shot / burst-fire switching according to claim 1, characterized in that, The return torsion spring includes two torsion spring bodies sleeved on the connecting shaft. One end of the two torsion spring bodies is connected and locked to the top of the trigger through a U-shaped connecting part, and the other end of the two torsion spring bodies forms a curved hook part. The bottom of the trigger housing is provided with a positioning shaft, and the hook part is hooked on the positioning shaft.

4. The multi-functional trigger structure for single-shot / burst-fire switching according to claim 1, characterized in that, A friction damping mechanism is provided on the rear side of the irregular cam. The friction damping mechanism includes a fixed post and a limiting shaft fixed to the trigger housing. A baffle is rotatably connected to the fixed post, and a notch is provided on its top. A return torsion spring is sleeved on the fixed post at the notch position. One end of the return torsion spring is locked at the bottom of the limiting shaft, and the other end is locked at the bottom of the baffle, providing the baffle with a force pressing against the irregular cam. The side of the baffle is in elastic contact with the outer surface of the irregular cam in its natural state. A limiting post is sleeved on the outside of the fixed post. The limiting post is located outside the return torsion spring and is used to prevent the return torsion spring from sliding axially.

5. The multi-functional trigger structure for single-shot / burst-fire switching according to claim 1, characterized in that, A switch circuit board is provided on the front side of the top of the trigger, and the switch circuit board is provided with a launch switch; when the trigger is pulled, the top of the trigger rotates forward to contact the launch switch, triggering the launch signal.

6. The multi-functional trigger structure for single-shot / burst-fire switching according to claim 1, characterized in that, The left or right gear shift lever is marked with an indicator of the gear position. When the lever is rotated to different angles, the corresponding indicator aligns with the enable block position to indicate the current working mode.

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