Trigger assembly, locking mechanism and pneumatic emitter

By designing a rotatable trigger head and a limiting structure with elastic components in the glass ball launching device, the problem of interference between the trigger rod and the locking rod was solved, enabling the trigger rod to be successfully reset and improving the reset efficiency and reliability.

CN223538193UActive Publication Date: 2025-11-11平裕(成都)科技有限公司
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Patent Information

Application Number
CN202423314777.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-11-11
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

In existing glass-breaking ball launching devices, the trigger rod and the locking rod are prone to interference, leading to problems such as unsuccessful reset or even jamming.

Method used

A trigger assembly was designed, including a rotatable trigger head and an elastic component. By combining a limiting structure and elastic potential energy, the trigger head is ensured not to interfere with the locking rod during the reset process, and the elastic component automatically restores the initial position, thereby achieving a smooth reset of the trigger rod.

Benefits of technology

It effectively prevents interference between the trigger lever and the locking lever, ensuring that the trigger lever can be reset smoothly and stably, thus improving reset efficiency and reliability.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to a trigger assembly, locking mechanism and pneumatic launcher, the trigger assembly includes trigger rod, be used for extruding the trigger head of locking rod and be used for the elastic part of resetting, the trigger head is rotatablely arranged at one end of trigger rod, the trigger rod is equipped with the first limit part, and the elastic part is equipped with the second limit part. The first limiting part is located on the rotating path of the trigger head, the trigger head abuts against the first limiting part under the action of the elastic component, the first limiting part is used for limiting the trigger head to rotate upwards, and when the trigger head rotates downwards relative to the trigger rod, the elastic potential energy of the elastic component is increased; according to the trigger assembly, the problem that the trigger rod cannot be reset due to the fact that interference is prone to occurring between the trigger rod and the locking rod can be effectively solved, and it is ensured that the trigger rod can be reset more smoothly and stably.
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Description

Technical Field

[0001] This utility model relates to the technical field of glass-breaking ball launching devices, specifically to a triggering component, a locking mechanism, and a pneumatic launcher. Background Technology

[0002] A glass-breaking device (or glass-breaking equipment) is a specialized remote glass-breaking device used for throwing glass-breaking balls. It is widely used in firefighting and rescue operations. Currently, glass-breaking devices have diverse structures. For example, Chinese patent CN211893653U discloses a pneumatic glass-breaking ball launching mechanism, which can be mounted on a drone. This launching mechanism specifically includes a power chamber, a blocking mechanism, and a locking mechanism. The power chamber and the blocking mechanism are mutually compatible. The blocking mechanism is movably located at one end of the power chamber for blocking and opening the power chamber. The locking mechanism is mutually compatible with the blocking mechanism for locking and unlocking the blocking mechanism. When the locking mechanism locks the blocking mechanism, the power chamber is closed, and the air pressure inside the power chamber can rise to the pressure required to throw the glass-breaking ball. When it is necessary to throw the glass-breaking ball, the locking mechanism unlocks the blocking mechanism. Under the action of the air pressure inside the power chamber, the blocking mechanism moves and releases the high-pressure gas inside the power chamber. The high-pressure gas acts on the glass-breaking ball in the launching channel, thereby launching the glass-breaking ball through air pressure.

[0003] The glass-breaking ball launcher disclosed in Chinese patent CN211893653U is an early-generation product. Its locking mechanism includes a connected locking rod and a trigger rod. The trigger rod drives the locking rod, thereby unlocking the sealing mechanism adapted to the locking rod. In practice, because the trigger rod is directly connected to the locking rod, it affects the reset efficiency, especially making it unsuitable for motor-driven trigger rods. Therefore, in the improved design, the trigger rod is configured not to be directly connected to the locking rod. Furthermore, the trigger rod is configured to be height-adjustable. On one hand, the trigger rod can move downwards to contact and squeeze one end of the locking rod, thereby lifting the other end of the locking rod to unlock it. On the other hand, after the locking rod is unlocked, it can detach from the trigger rod for quick reset. Simultaneously, the trigger rod can also be moved upwards for reset. This structure is very convenient for motor-controlled raising and lowering of the trigger rod. However, in actual use, it was found that the trigger rod easily interferes with the locking rod during the upward reset process, resulting in problems such as the trigger rod failing to reset smoothly or even getting stuck. This issue urgently needs to be addressed. Summary of the Invention

[0004] The first aspect of this utility model is to solve the above-mentioned problems by providing a triggering component that can effectively prevent the locking rod and the triggering rod from failing to reset due to interference, ensuring that the triggering rod can reset more smoothly and stably. The main concept is as follows:

[0005] A trigger assembly includes a trigger rod, a trigger head for pressing a locking rod, and an elastic component for resetting. The trigger head is rotatably disposed at one end of the trigger rod. The trigger rod has a first limiting portion located on the rotation path of the trigger head. The trigger head abuts against the first limiting portion under the action of the elastic component. The first limiting portion restricts the upward rotation of the trigger head. When the trigger head rotates downward relative to the trigger rod, the elastic potential energy of the elastic component increases. In this solution, by rotatably disposing the trigger head at one end of the trigger rod, the trigger head has a degree of freedom of rotation relative to the trigger rod. By constructing a first limiting portion on the trigger rod, the rotation of the trigger head is limited, preventing excessive rotation. The trigger rod can also transmit the pressing force to the trigger head through the first limiting portion for more stable and reliable pressing of the locking rod. By configuring the elastic component, not only can the trigger head initially abut against the first limiting portion under the action of the elastic component, ensuring a stable initial position, but also, when the trigger head rotates downward relative to the trigger rod, the elastic component... The elastic potential energy of the component is increased to achieve automatic reset. With this design, when the trigger rod moves downward, the trigger head can press one end of the locking rod to lift the other end of the locking rod and unlock it. During the process of the trigger rod rising and resetting, if there is interference between the trigger head and the locking rod, the trigger head can rotate relative to the trigger rod so that the trigger rod can rise smoothly and the trigger head can move above the locking rod. At the same time, after passing the locking rod, the trigger head can automatically return to its initial position and initial state under the action of the elastic component, so that the trigger rod will not jam or even get stuck during the reset process.

[0006] Furthermore, the trigger head is configured with a second limiting part adapted to the first limiting part. The first limiting part is disposed on the rotation path of the second limiting part, and under the action of the elastic member, the second limiting part abuts against the first limiting part. Through the cooperation of the first limiting part and the second limiting part, it is easier to control the initial position of the trigger head.

[0007] Furthermore, it also includes a shaft component, to which the trigger head is connected, and the shaft component is connected to the trigger rod. This allows for the rotatable mounting of the trigger head via the shaft component.

[0008] Preferably, the trigger head has a mounting hole, and the trigger head is sleeved onto the shaft component through the mounting hole.

[0009] Furthermore, the trigger rod is provided with a mounting hole, through which the shaft component is mounted on the trigger rod.

[0010] Preferably, the elastic component is a torsion spring, which is sleeved on the shaft component. One end of the torsion spring is constrained by the trigger head, and the other end of the torsion spring is constrained by the trigger rod. This not only allows the torsion spring to perform a reset function but also simplifies the structure.

[0011] In some designs, the first limiting part is located above the trigger head, and the first limiting part is a first limiting block used to restrict the trigger head from rotating upward.

[0012] Furthermore, the second limiting part is a second limiting block disposed on the trigger head. The limiting cooperation between the first limiting block and the second limiting block achieves the purpose of limiting the rotation angle of the trigger head and preventing the trigger head from rotating upward without restriction.

[0013] In some designs, a mounting groove is formed on the side of one end of the trigger rod, and the side wall of the mounting groove forms the first limiting part. The trigger head is disposed in the mounting groove. The side wall of the trigger head includes an upper side wall formed on the upper side of the trigger head and a left side wall formed on the left end of the trigger head. The upper side wall is connected to the left side wall. The upper side wall forms the second limiting part. The maximum distance between the upper side wall and the rotation center of the trigger head is greater than the minimum distance between the side wall and the rotation center of the trigger head. The maximum distance between the left side wall and the rotation center of the trigger head is less than the minimum distance between the side wall and the rotation center of the trigger head. In this solution, by configuring an assembly slot and placing the trigger head within it, a limiting fit is formed between the side wall and the upper side wall. This limiting fit restricts the trigger head from rotating upwards relative to the trigger rod. This design is simple and cost-effective. By configuring the maximum distance between the upper side wall and the center of rotation of the trigger head to be greater than the minimum distance between the side wall and the center of rotation of the trigger head, the upper side wall can gradually approach the side wall and eventually abut against it during the upward rotation of the trigger head, preventing further upward rotation. By configuring the maximum distance between the left side wall and the center of rotation of the trigger head to be less than the minimum distance between the side wall and the center of rotation of the trigger head, the left side wall can gradually approach the side wall and rotate into the assembly slot during the downward rotation of the trigger head, avoiding interference with the side wall of the assembly slot. This facilitates the downward rotation of the trigger head to a vertical position, ensuring that even if the trigger rod interferes with the locking rod during the reset process, the rotation of the trigger head can resolve the interference, ensuring the trigger rod can reset smoothly.

[0014] Preferably, the sidewall is a plane and perpendicular to the length direction of the trigger rod; the upper sidewall is planar; and the left sidewall is an arc surface. The structure is simple and easy to process and shape.

[0015] Preferably, the bottom of the assembly groove is provided with an assembly hole adapted to the shaft component; the trigger head is provided with a mounting hole adapted to the shaft component, and the trigger head is sleeved on the shaft component through the mounting hole; the shaft component is disposed on the trigger rod through the assembly hole.

[0016] To further enhance the compactness of the structure, a first groove is formed within the bottom surface of the mounting slot, and a second groove is formed on the side of the trigger head. The second groove is connected to the first groove, and the torsion spring is disposed within both the first and second grooves. This not only simplifies and compacts the structure but also facilitates the installation and removal of the torsion spring.

[0017] The second aspect of this invention addresses the problem of how to more easily resolve interference and achieve rapid reset. Furthermore, the right end of the trigger head is provided with a first guide surface. When the trigger head abuts against the first limiting part, the first guide surface is inclined in the vertical direction. This first guide surface guides and reduces the rotation angle of the trigger head, ensuring that even if the trigger rod interferes with the locking rod during reset, it can still pass smoothly through the locking rod, achieving rapid reset.

[0018] Furthermore, the other end of the trigger rod is also equipped with a connecting portion for connecting to the motor.

[0019] A locking mechanism includes a bracket, a locking rod, a tension spring, and a trigger assembly. The trigger rod is vertically and retractably constrained to the bracket. The locking rod includes a first end and a second end, and has a hinge hole, which is a slotted hole, located between the first end and the second end. The first end of the locking rod has a locking portion adapted to a sealing mechanism. The bracket is provided with a hinge shaft, and the locking rod is sleeved on the hinge shaft through the hinge hole, allowing the locking rod to rotate and move relative to the hinge shaft.

[0020] One end of the tension spring is connected to the locking rod, and the other end of the tension spring is connected to the bracket;

[0021] The trigger assembly is located on one side of the locking rod. When the locking rod moves towards the trigger assembly, the second end of the locking rod can move below the trigger assembly. A tension spring is used to press down the first end of the locking rod. The trigger head is used to press the second end of the locking rod to lift the first end. In this design, by configuring a tension spring, which acts on the locking rod, it can provide downward pressure to the first end of the locking rod, making the locking engagement between the locking part and the sealing mechanism more stable and reliable, preventing automatic disengagement and accidental triggering. Simultaneously, the tension spring can pull the locking rod away from the trigger assembly, allowing the second end of the locking rod to disengage as much as possible from the trigger assembly, facilitating rapid reset of the locking rod. By constructing the hinge hole as a slotted hole, the locking rod can not only rotate relative to the shaft to use a lever to move away from the unlocking sealing mechanism and achieve triggering, but also... The locking lever moves relative to the shaft, allowing the position of the locking lever to control whether power can be transmitted between the locking lever and the trigger lever. Upon triggering, simply driving the trigger lever downwards causes it to contact and press the second end of the locking lever, thereby using leverage to lift the first end of the locking lever, disengaging the locking part from the blocking mechanism and achieving both unlocking and triggering. This design, where the locking lever and trigger lever are not directly connected, allows for faster resetting of the locking lever, aligning with a faster-resetting blocking mechanism. This results in a faster engagement speed between the locking lever and the blocking mechanism during resetting, improving resetting efficiency.

[0022] To ensure a more stable and reliable engagement between the trigger lever and the locking lever, the bracket is further provided with a guide portion, to which the trigger lever is movably constrained. By using the guide portion to constrain the trigger lever and guide its movement, the trigger lever is ensured to run more precisely along a predetermined trajectory, guaranteeing a more stable and reliable engagement between the trigger lever and the locking lever.

[0023] Preferably, the guide portion includes a guide hole, and the trigger rod and the guide hole form a sliding pair.

[0024] Furthermore, it also includes a power source and a connecting rod. One end of the connecting rod is connected to the power source, and the other end is connected to the trigger rod in the trigger assembly. The power source is used to drive the trigger assembly to rise and fall. Thus, the locking rod can be lifted by the power source to achieve the purpose of unlocking and triggering, which is conducive to realizing remote automatic control.

[0025] Preferably, the power source is a servo motor.

[0026] Furthermore, the second end of the locking rod is also provided with a second guide surface. This allows for better guidance and resolution of interference issues through the cooperation of the first and second guide surfaces.

[0027] A pneumatic launcher includes the triggering component or the locking mechanism.

[0028] Compared with the prior art, the triggering component, locking mechanism and pneumatic launcher provided by this utility model can effectively solve the problem that interference between the triggering rod and the locking rod can easily cause the triggering rod to fail to reset, ensuring that the triggering rod can reset more smoothly and stably. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is one of the structural schematic diagrams of a trigger component provided in Embodiment 1 of this utility model.

[0031] Figure 2 This is a second schematic diagram of the structure of a triggering component provided in Embodiment 1 of this utility model.

[0032] Figure 3 This is a partial structural diagram of a trigger rod provided in Embodiment 1 of this utility model.

[0033] Figure 4 This is a schematic diagram of the structure of a trigger head provided in Embodiment 1 of this utility model.

[0034] Figure 5 This is a partial structural diagram of a triggering component provided in Embodiment 1 of this utility model.

[0035] Figure 6 This is a three-dimensional structural diagram of a triggering component provided in Embodiment 1 of this utility model.

[0036] Figure 7 In the first state of the locking mechanism provided in Embodiment 2 of this utility model, the second end of the locking rod is located below the trigger rod.

[0037] Figure 8 In the second state of the locking mechanism provided in Embodiment 2 of this utility model, the trigger rod presses down on the second end of the locking rod, causing the first end of the locking rod to lift up.

[0038] Figure 9 In the third state of the locking mechanism provided in Embodiment 2 of this utility model, the trigger rod has not yet moved upward, but the locking rod has been reset.

[0039] Figure 10 In the fourth state of the locking mechanism provided in Embodiment 2 of this utility model, the locking rod is offset a distance towards the trigger rod under the action of external force (the action of the blocking mechanism), so that the second end of the locking rod is exactly on the reset path of the locking component. The locking rod interferes with the trigger head. When the trigger rod rises to reset, the trigger head rotates by itself under the squeezing action of the locking rod and passes smoothly through the locking rod.

[0040] Figure 11 This is a schematic diagram of a locking mechanism provided in Embodiment 2 of this utility model.

[0041] The markings in the diagram are as follows: Trigger assembly 1; Trigger rod 2, Connecting part 21, Assembly hole 22, First limiting part 23, Assembly groove 24, Side wall surface 25, First groove 26; Trigger head 3, Mounting hole 31, Second limiting part 32, Upper side wall 33, Left side wall 34, Second groove 35, First guide surface 36; Elastic component 4; Shaft component 5; Open retaining ring 6; Bracket 7, Guide hole 71, Hinge shaft 72, Tension spring 73; Locking rod 8, First end 81, Second guide surface 82, Hinge hole 83, Second end 84, Locking part 85; Power source 91, Connecting rod 92. Detailed Implementation

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0043] Example 1

[0044] This embodiment provides a triggering assembly, including a trigger rod 2, a trigger head 3 for pressing the locking rod 8, and an elastic component 4 for resetting. The trigger rod 2 is mainly used for transmission; in implementation, the trigger rod 2 can preferably adopt a rod-shaped structure, such as... Figure 1 and Figure 2 As shown, the upper end of the trigger rod 2 has a connecting part 21 for connecting to the motor. In practice, the connecting part 21 can be a through hole, a threaded hole, or the like.

[0045] In this embodiment, the trigger rod 2 is configured with a first limiting part 23, such as Figure 1 and Figure 2 As shown, the trigger head 3 is rotatably disposed at the lower end of the trigger rod 2, and the trigger head 3 can abut against the first limiting part 23 under the action of the elastic member 4. The first limiting part 23 is used to restrict the trigger head 3 from rotating upward (it can be understood that in this embodiment, the rotation of the trigger head 3 toward the direction closer to the connecting part 21 is called upward rotation, and the rotation toward the direction further away from the connecting part 21 is called downward rotation, which will not be elaborated further below). When the trigger head 3 rotates downward relative to the trigger rod 2, the elastic potential energy of the elastic member 4 increases.

[0046] To enable the rotatable mounting of the trigger head 3, in one embodiment, a shaft component 5 is also included, such as... Figure 1 and Figure 2 As shown, the trigger head 3 is connected to the shaft component 5, and the shaft component 5 is connected to the trigger rod 2, so that the trigger head 3 can be rotatably installed through the shaft component 5. In implementation, the shaft component 5 can be integrally formed with the trigger rod 2 or integrally formed with the trigger head 3. The shaft component 5 can also be an independent component. For example, in this embodiment, the shaft component 5 can be an independent component, in which case the shaft component 5 can also be a pin, screw, bolt pair, etc. For easy installation, the trigger head 3 is constructed with a mounting hole 31, through which the trigger head 3 can be fitted onto the shaft component 5; correspondingly, the trigger rod 2 is constructed with a mounting hole 22, through which the shaft component 5 can be disposed on the trigger rod 2. In implementation, the inner diameter of the mounting hole 31 can be constructed to be larger than the outer diameter of the shaft component 5, so that the trigger head 3 can rotate relative to the shaft component 5. In implementation, the inner diameter of the mounting hole 22 can be constructed to be larger than the outer diameter of the shaft component 5, so that the shaft component 5 can rotate relative to the trigger rod 2.

[0047] In implementation, the elastic component 4 can be implemented in various ways. For example, the elastic component 4 can be a tension spring 73, a compression spring, a torsion spring, etc., which can serve as a reset function. As an example, in this embodiment, the elastic component 4 is a torsion spring. The torsion spring is sleeved on the shaft component 5. The torsion arm at one end of the torsion spring is constrained by the trigger head 3, and the torsion arm at the other end of the torsion spring is constrained by the trigger rod 2. When the trigger head 3 rotates relative to the trigger rod 2, the torque of the torsion spring can be changed synchronously. This not only allows the torsion spring to serve as a reset function, but also helps to simplify the structure.

[0048] In implementation, the first limiting part 23 can preferably be positioned above the trigger head 3 to restrict the upward rotation of the trigger head 3, allowing the trigger head 3 to press down on the locking rod 8. In implementation, the first limiting part 23 can have various embodiments. For example, in one embodiment, the first limiting part 23 can be a first limiting block disposed on the trigger rod 2. The shape of the first limiting block can be determined according to actual needs, and the first limiting block can be disposed on the rotation path of the trigger head 3, such as... Figure 1 and Figure 2 As shown, this is sufficient to prevent the trigger head 3 from rotating. Of course, in a further embodiment, the trigger head also has a second limiting part 32 adapted to the first limiting part 23. In implementation, the first limiting part 23 is positioned on the rotation path of the second limiting part 32, so that the limiting cooperation between the first and second limiting blocks achieves the purpose of limiting the rotation angle of the trigger head 3 and preventing the trigger head 3 from rotating upwards without restriction. In implementation, the second limiting part 32 can also have various embodiments. For example, the second limiting part 32 can be a second limiting block disposed on the trigger head 3, and the shape of the second limiting block can be determined according to actual needs.

[0049] In a preferred embodiment provided in this example, a mounting groove 24 is further constructed on the side of the lower end of the trigger rod 2, and the side wall 25 of the mounting groove 24 constitutes the first limiting part 23, such as... Figure 3 As shown, in implementation, the side wall 25 is preferably constructed as a plane, perpendicular to the length direction of the trigger rod 2, resulting in a simple structure that is easy to process and shape. Figure 5 and Figure 6 As shown, the trigger head 3 is disposed within the assembly slot 24. In this case, the trigger head 3 can adopt a block structure. The sidewalls of the trigger head 3 include an upper sidewall 33 constructed on the upper side of the trigger head 3 and a left sidewall 34 constructed on the left end of the trigger head 3. The upper sidewall 33 and the left sidewall 34 are connected, as shown... Figures 4-6 As shown, the upper sidewall 33 constitutes the second limiting part 32. In this embodiment, the maximum distance between the upper sidewall 33 and the rotation center of the trigger head 3 is greater than the minimum distance between the sidewall surface 25 and the rotation center of the trigger head 3. During the upward rotation of the trigger head 3, the upper sidewall 33 can gradually approach the sidewall surface 25 and eventually abut against the sidewall surface 25, so that the trigger head 3 can no longer continue to rotate upward, achieving the purpose of unidirectional limiting. At the same time, in this embodiment, the maximum distance between the left sidewall 34 and the rotation center of the trigger head 3 is less than the minimum distance between the sidewall surface 25 and the rotation center of the trigger head 3. During the downward rotation of the trigger head 3, the left sidewall 34 can gradually approach the sidewall surface 25 and can rotate into the assembly groove 24 without interfering with the sidewall surface 25 of the assembly groove 24. This facilitates the downward rotation of the trigger head 3 to the vertical position, so that even if the trigger rod 2 interferes with the locking rod 8 during the reset process, the interference can be resolved by the rotation of the trigger head 3, ensuring that the trigger rod 2 can be reset smoothly.

[0050] In implementation, the upper sidewall 33 can preferably be constructed as a plane, such as... Figure 3 As shown, the left side wall 34 can preferably be constructed as an arc surface, such as... Figure 4 As shown, the structure is simple and easy to process and shape.

[0051] To facilitate the assembly of the trigger head 3, in a further embodiment, the bottom of the assembly groove 24 is also provided with an assembly hole 22 for the shaft component 5, such as... Figure 3 As shown; simultaneously, the trigger head 3 is constructed with mounting holes 31 for the adapter shaft component 5, as shown. Figure 3 As shown, the trigger head 3 can be fitted onto the shaft component 5 through the mounting hole 31; the shaft component 5 can be mounted onto the trigger rod 2 through the assembly hole 22. In practice, the inner diameter of the mounting hole 31 can be constructed to be larger than the outer diameter of the shaft component 5, or the inner diameter of the assembly hole 22 can be constructed to be larger than the outer diameter of the shaft component 5, both of which achieve the purpose of rotatably mounting the trigger head 3.

[0052] In a further embodiment, the sides at both ends of the shaft component 5 are respectively provided with annular grooves, and the shaft component 5 passes through the mounting hole 31 and the assembly hole 22, as shown. Figure 5 and Figure 6 As shown, the trigger head 3 and the trigger rod 2 are located between two annular grooves, and each of the two annular grooves is detachably provided with an opening retaining ring 6 for installing and removing the trigger head 3.

[0053] To make the structure of the entire trigger assembly 1 more compact, in a further embodiment, a first groove 26 is also constructed in the bottom surface of the mounting groove 24, and a second groove 35 is constructed on the side of the trigger head 3. The second groove 35 is connected to the first groove 26, and a torsion spring is disposed in the first groove 26 and the second groove 35. Figure 5 As shown, the torsion arm at one end of the torsion spring can be limited and constrained within the first groove 26, and the torsion arm at the other end of the torsion spring can be limited and constrained within the second groove 35. This not only simplifies and compacts the structure, but also facilitates the installation and disassembly of the torsion spring.

[0054] In this embodiment, when the trigger rod 2 abuts against the first limiting part 23, the right end of the trigger head 3 protrudes from the side wall of the trigger rod 2, such as... Figures 1-6As shown, during the downward movement of the trigger rod 2, the protruding trigger head 3 can press down on the locking rod 8 located on one side of the trigger rod 2. During the upward movement of the trigger rod 2 to reset, the protruding trigger head 3 may hook onto the locking rod 8, causing interference. However, since the trigger head 3 can rotate downward under external force, it can rotate at a certain angle under the pressing action of the locking rod 8, ultimately allowing the trigger head 3 to move above the locking rod 8. This ensures not only that the appropriate trigger rod 2 can reset smoothly, but also that the trigger head 3 can automatically reset. Based on this, in a further embodiment, the right end of the trigger head 3 is also provided with a first guide surface 36. The first guide surface 36 can contact the locking rod 8 during the reset process and can guide and reduce the rotation angle of the trigger head 3. Even if the trigger rod 2 interferes with the locking rod 8 during the reset process, it can still pass smoothly through the locking rod 8, achieving rapid reset.

[0055] In implementation, the first guide surface 36 can preferably be an inclined surface constructed at the right end of the trigger head 3, such as... Figures 1-6 As shown, when the trigger rod 2 abuts against the first limiting part 23, the inclined surface is tilted in the vertical direction.

[0056] Using the trigger assembly 1 provided in this embodiment, when the trigger rod 2 moves downward, the trigger head 3 can press one end of the locking rod 8 to lift the other end of the locking rod 8 and unlock it. Figure 8 As shown; during the process of trigger rod 2 rising and resetting, if interference occurs between trigger head 3 and locking rod 8, trigger head 3 can rotate relative to trigger rod 2, as shown. Figure 10 As shown, this allows the trigger rod 2 to rise smoothly and the trigger head 3 to move above the locking rod 8. After passing the locking rod 8, the trigger head 3 can automatically return to its initial position and state under the action of the elastic component 4. The trigger rod 2 will not experience any jamming or even stuck problems during the reset process.

[0057] Example 2

[0058] This embodiment provides a locking mechanism, including a support 7 for bearing, a locking rod 8, a tension spring 73, and a trigger assembly 1 as described in Embodiment 1.

[0059] like Figure 7 As shown, the bracket 7 is provided with a guide portion adapted to the trigger rod 2, so that the trigger rod 2 is movably constrained to the guide portion through the cooperation between the trigger rod 2 and the guide portion. In implementation, the guide portion may include a guide cylinder disposed on the bracket 7, such as... Figure 7 As shown, the guide cylinder is vertically mounted on the bracket 7. The guide cylinder has a guide hole 71 inside. The inner diameter of the guide hole 71 is designed to match the outer diameter of the trigger rod 2, so that the trigger rod 2 and the guide hole 71 can form a sliding pair.

[0060] In this embodiment, the locking rod 8 includes two ends, namely a first end 81 and a second end 84. The locking rod 8 also has a hinge hole 83, which is constructed between the first end 81 and the second end 84. Figure 7 As shown, in this embodiment, the hinge hole 83 is not a round hole, but a strip hole, such as... Figure 7 As shown. Accordingly, the bracket 7 is also provided with a hinge shaft 72, and the locking rod 8 is sleeved on the hinge shaft 72 through the hinge hole 83. Since the hinge hole 83 is a slotted hole, the locking rod 8 can both rotate relative to the hinge shaft 72 and move relative to the hinge shaft 72.

[0061] At the same time, such as Figure 7 As shown, the first end 81 of the locking rod 8 is constructed with a locking part 85 that is adapted to the slot in the sealing mechanism, so as to use the locking rod 8 to lock and unlock the sealing mechanism in the pneumatic launcher.

[0062] In this embodiment, the main function of the tension spring 73 is to press down the first end 81 of the locking rod 8, making the locking part 85 and the sealing mechanism lock more stably and reliably. In implementation, one end of the tension spring 73 is connected to the locking rod 8, and the other end is connected to the bracket 7, as shown below. Figure 7 As shown, the tension spring 73 pulls the second end 84 of the locking rod 8 upward, thereby using the lever principle to press down the first end 81 of the locking rod 8.

[0063] In this embodiment, the locking lever 8 is disposed on one side of the trigger assembly 1, such as... Figure 7 As shown, when the locking lever 8 is located at the leftmost position of the hinge shaft 72, the second end 84 of the locking lever 8 is exactly below the trigger head 3 in the trigger assembly 1, as shown. Figure 7 As shown, at this time, the trigger component 1 can move downward, causing the trigger head 3 to contact and press down on the locking lever 8, as... Figure 8 As shown, the lever principle is used to lift the first end 81 of the locking rod 8, thereby unlocking the sealing component. Theoretically, then, under the elastic force of the tension spring 73, the locking rod 8 moves away from the trigger rod 2, causing the second end 84 of the locking rod 8 to disengage from the trigger head 3, as shown. Figure 9 As shown, simultaneously, under the action of the tension spring 73, the first end 81 of the locking rod 8 is pressed down, and the second end 84 of the locking rod 8 is lifted, as... Figure 9 As shown, the locking mechanism usually resets automatically. However, in an unexpected situation, such as when the locking lever 8 is shifted towards the trigger lever 2 by an external force, the second end 84 of the locking lever 8 may be positioned on the reset path of the locking mechanism. Figure 10As shown, this causes the trigger head 3 to collide with the second end 84 of the locking rod 8, resulting in interference. With the trigger assembly 1 provided in Embodiment 1, even if interference occurs during the reset process, the trigger head 3 can automatically rotate downwards under pressure, as shown... Figure 10 As shown, this automatically resolves interference, allowing the trigger component 1 to reset smoothly. Furthermore, in this locking mechanism, the locking rod 8 and the trigger rod 2 are not directly connected, as shown... Figures 7-10 As shown, this allows the locking rod 8 to reset more quickly, so as to be compatible with the sealing mechanism that can reset more quickly. This makes the locking rod 8 and the sealing mechanism cooperate faster during the reset process, which helps to improve the reset efficiency.

[0064] like Figures 7-10 As shown, the second end 84 of the locking rod 8 is also constructed with a second guide surface 82 adapted to the first guide surface 36. The second guide surface 82 is an inclined surface in the vertical direction so that the cooperation between the first guide surface 36 and the second guide surface 82 can achieve a better guiding effect and better resolve interference problems.

[0065] In a more refined implementation, a power source 91 and a connecting rod 92 are also included, such as Figure 11 As shown, one end of the connecting rod 92 is connected to the power source 91, and the other end of the connecting rod 92 is connected to the trigger rod 2 in the trigger assembly 1, so that the power source 91 can drive the trigger assembly 1 to rise and fall. In implementation, the power source 91 can be a motor. In this embodiment, the power source 91 is a servo motor, which is mounted on the bracket 7, as shown. Figure 11 As shown; one end of the connecting rod 92 is connected to the output shaft of the servo motor, and the other end of the connecting rod 92 is connected to the upper end of the trigger rod 2 via the connecting part 21, as shown. Figure 11 As shown.

[0066] Example 3

[0067] This embodiment provides a pneumatic launcher, including the triggering component 1 described in Embodiment 1 or the locking mechanism described in Embodiment 2.

[0068] In a more complete solution, this pneumatic launcher also includes a housing, a return spring, a gas storage component for storing high-pressure gas, a sealing mechanism for controlling whether the gas storage component vents, a guide cylinder for guiding the throwing process of the broken glass ball, a ball storage module for storing the broken glass ball, and a control module for controlling the locking mechanism. The sealing mechanism has a slot adapted to the locking part 85. For details, please refer to Chinese Patent CN211893653U, which will not be elaborated here.

[0069] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A triggering assembly, comprising a trigger lever, characterized in that, It also includes a trigger head for pressing the locking rod and an elastic component for resetting. The trigger head is rotatably disposed at one end of the trigger rod. The trigger rod is constructed with a first limiting part located on the rotation path of the trigger head. The trigger head abuts against the first limiting part under the action of the elastic component. The first limiting part is used to restrict the trigger head from rotating upward. When the trigger head rotates downward relative to the trigger rod, the elastic potential energy of the elastic component increases.

2. The triggering component according to claim 1, characterized in that, The trigger head is configured with a second limiting part adapted to the first limiting part. The first limiting part is disposed on the rotation path of the second limiting part. Under the action of the elastic member, the second limiting part abuts against the first limiting part.

3. The triggering component according to claim 1, characterized in that, It also includes a shaft component, a trigger head connected to the shaft component, and a shaft component connected to the trigger rod; And / or, the elastic component is a torsion spring, which is sleeved on the shaft component, with the torsion arm at one end of the torsion spring constraining the trigger head and the torsion arm at the other end of the torsion spring constraining the trigger rod. And / or, the other end of the trigger rod is also provided with a connecting part.

4. The triggering component according to claim 2, characterized in that, The first limiting part is disposed above the trigger head, and the first limiting part is a first limiting block used to restrict the trigger head from rotating upward; The second limiting part is a second limiting block disposed on the trigger head.

5. The triggering component according to claim 2, characterized in that, The trigger rod has a mounting groove on one side, and the side wall of the mounting groove forms the first limiting part. The trigger head is disposed in the mounting groove. The side wall of the trigger head includes an upper side wall constructed on the upper side of the trigger head and a left side wall constructed on the left end of the trigger head. The upper side wall is connected to the left side wall. The upper side wall forms the second limiting part. The maximum distance between the upper side wall and the rotation center of the trigger head is greater than the minimum distance between the side wall and the rotation center of the trigger head. The maximum distance between the left side wall and the rotation center of the trigger head is less than the minimum distance between the side wall and the rotation center of the trigger head.

6. The triggering component according to claim 5, characterized in that, The sidewall is a plane and perpendicular to the length direction of the trigger rod; the upper sidewall is a plane; the left sidewall is an arc surface. The bottom of the assembly slot is provided with an assembly hole for the shaft component; the trigger head is provided with a mounting hole for the shaft component, and the trigger head is sleeved onto the shaft component through the mounting hole; the shaft component is mounted on the trigger rod through the assembly hole. The bottom surface of the assembly slot is also provided with a first groove, and the side of the trigger head is provided with a second groove. The second groove is connected to the first groove. The elastic component is a torsion spring, which is disposed in the first groove and the second groove.

7. The triggering component according to any one of claims 1-6, characterized in that, The right end of the trigger head is also provided with a first guide surface. When the trigger head abuts against the first limiting part, the first guide surface is inclined in the vertical direction.

8. A locking mechanism, comprising a bracket, a locking rod, and a tension spring, characterized in that, It also includes the triggering component according to any one of claims 1-7, wherein the triggering rod is vertically constrained to the bracket, the locking rod includes a first end and a second end, the locking rod is constructed with a hinge hole, the hinge hole is a strip hole, the hinge hole is constructed between the first end and the second end, the first end of the locking rod is constructed with a locking part adapted to the sealing mechanism; the bracket is provided with a hinge shaft, the locking rod is sleeved on the hinge shaft through the hinge hole, and the locking rod can rotate and move relative to the hinge shaft; One end of the tension spring is connected to the locking rod, and the other end of the tension spring is connected to the bracket; The trigger assembly is located on one side of the locking lever. When the locking lever moves in a direction close to the trigger lever, the second end of the locking lever can move below the trigger head. The tension spring is used to press down the first end of the locking lever. The trigger head is used to squeeze the second end of the locking lever to lift the first end of the locking lever.

9. The locking mechanism according to claim 8, characterized in that, The bracket is also provided with a guide part, and the trigger rod is movablely constrained by the guide part; It also includes a power source and a connecting rod. One end of the connecting rod is connected to the power source, and the other end of the connecting rod is connected to the trigger rod in the trigger assembly. The power source is used to drive the trigger assembly to move up and down. The power source is a servo motor. The second end of the locking rod is also provided with a second guide surface.

10. A pneumatic launcher, characterized in that, It includes the triggering component as described in any one of claims 1-7 or the locking mechanism as described in any one of claims 8-9.

Citation Information

Patent Citations

  • Pneumatic type glass breaking ball launching mechanism based on unmanned aerial vehicle

    CN211893653U