Elastic firing pin ejection device

By designing an elastic firing needle catapult device including a locking spring and a trigger set, the automatic locking and unlocking of the firing needle is achieved, solving the problem of uncontrolled potential energy release in the prior art, and improving the safety and accuracy of the catapult device.

CN119879638APending Publication Date: 2025-04-25赵庆涛
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Patent Information

Application Number
CN202510220728.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2025-04-25

AI Technical Summary

Technical Problem

The existing ejection firing device driven by elastic firing needles is difficult to achieve automatic locking, which causes the firing needle to be uncontrolled when releasing elastic potential energy, affecting ejection accuracy and safety.

Method used

An elastic firing needle ejection device including a firing needle, a firing needle seat, a trigger set, a fixing frame and a locking spring is designed. The automatic locking and unlocking of the firing needle is realized through the locking spring driving the trigger set to ensure that the firing needle is controlled to release potential energy.

Benefits of technology

The automatic locking and unlocking of the striker is realized, which improves the safety and accuracy of the ejection device, avoids the risk of the striker being uncontrolled when releasing potential energy, and reduces the impact of the trigger set during the rotation process, extends the service life of the device.

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Abstract

The invention provides an elastic firing pin ejection device. The elastic firing pin ejection device comprises a firing pin, a firing pin base, a trigger set, a fixing frame and a locking assisting spring. The firing pin is an elastic body for providing elastic force for the device, the firing pin is provided with a firing pin front arm and a firing pin rear arm, and the two arms can be folded and unfolded; the firing pin seat is provided with a fixing part, a firing pin seat front chamber and a firing pin seat rear chamber, the firing pin head can be inserted into the firing pin seat front chamber, the firing pin tail can be inserted into the firing pin seat rear chamber, and the firing pin head reciprocates in the firing pin seat front chamber along with the movement of the firing pin front arm; the trigger group is provided with a trigger shaft, a trigger lock head and a trigger main body; the fixing frame is provided with a fixing groove and a trigger shaft hole, and the firing pin seat fixing part can be fixed in the fixing groove of the fixing frame; the trigger shaft is inserted into the trigger shaft hole of the fixing frame, the trigger set rotates relative to the fixing frame through the trigger shaft, and the trigger lock head is used for locking and unlocking the firing pin so as to control firing of the firing pin. The locking assisting spring provides driving force and buffering force for the trigger set. The invention provides the elastic firing pin ejection device which is simple and efficient and can be automatically locked.
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Description

Technical Field

[0001] The invention relates to the field of mechanical ejection, and in particular to an elastic firing pin ejection device. Background Art

[0002] The ejection firing device with an elastic firing pin as the driving force can efficiently convert elastic potential energy into the kinetic energy of the ejected object. The firing pin is an elastic body that can be locked by the trigger in a ready-to-fire state after storing energy. After the firing pin is unlocked, the elastic potential energy is released to achieve firing and ejection. Summary of the invention

[0003] Based on the above background, the present invention aims to provide a simple, efficient and automatically locked elastic firing pin ejection device, in which the trigger group automatically locks the firing pin and maintains the locked state after the firing pin is energized.

[0004] The present invention adopts the following technical solution:

[0005] A resilient firing pin ejection device, characterized in that it includes a firing pin, a firing pin seat, a trigger group, a fixing frame and an auxiliary locking spring, the firing pin includes a firing pin forearm and a firing pin rear arm, the end of the firing pin forearm is a firing pin head, and the end of the firing pin rear arm is a firing pin tail, the firing pin seat includes a fixing part, a firing pin seat front chamber and a firing pin seat rear chamber, the trigger group includes a trigger shaft, a trigger lock head and a trigger body, the fixing frame includes a fixing groove and a trigger shaft hole, and the auxiliary locking spring is an elastic member that provides driving force for the rotation of the trigger group.

[0006] Furthermore, the firing pin is an elastic body with two arms that can be closed and opened, and the firing pin stores elastic potential energy when the two arms of the firing pin are closed under the action of external force.

[0007] Furthermore, the fixing portion is fixed in the fixing groove, the firing pin head is installed in the front chamber of the firing pin seat, and the firing pin tail is installed in the rear chamber of the firing pin seat. The firing pin head can reciprocate in the front chamber of the firing pin seat along with the movement of the firing pin forearm. When the two arms are closed to a certain extent, the auxiliary locking spring drives the trigger group to rotate forward so that the trigger lock head locks the firing pin.

[0008] Furthermore, the trigger shaft is inserted into the trigger shaft hole, the trigger group rotates relative to the fixing frame through the trigger shaft, and the trigger lock is used to lock and unlock the firing pin to control the firing of the firing pin.

[0009] Furthermore, when the firing pin forearm and the firing pin rear arm are closed, the auxiliary locking spring drives the trigger group to rotate forward so that the trigger lock head locks the firing pin, and the trigger group rotates reversely to unlock the firing pin. The auxiliary locking spring acts as a buffer when the trigger group rotates reversely. After unlocking, the firing pin forearm drives the firing pin head to move forward.

[0010] The present invention has the following advantages: the auxiliary locking spring can provide driving force for the trigger group to rotate forward to lock the firing pin and realize automatic locking; the auxiliary locking spring can play a buffering role when the trigger group rotates reversely to make the trigger group rotate more smoothly, and can also prevent the trigger group from damaging other parts; the trigger lock head and the trigger body can use different materials to save costs; the elastic firing pin can efficiently convert elastic potential energy into kinetic energy of the ejected object. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of an elastic firing pin ejection device of the present invention is provided.

[0012] Figure 2 A structural schematic diagram of a firing pin locking state of a preferred embodiment of an elastic firing pin ejection device of the present invention is provided.

[0013] Figure 3 A schematic structural diagram of a firing pin of a preferred embodiment of an elastic firing pin ejection device of the present invention is provided.

[0014] Figure 4 A schematic structural diagram of a firing pin seat of a preferred embodiment of an elastic firing pin ejection device of the present invention is provided.

[0015] Figure 5 A schematic structural diagram of a trigger group of a preferred embodiment of an elastic firing pin ejection device of the present invention is provided.

[0016] Figure 5-1 A stereoscopic diagram of a trigger assembly of a preferred embodiment of an elastic firing pin ejection device of the present invention is provided.

[0017] Figure 6 A schematic structural diagram of a fixing frame of a preferred embodiment of an elastic firing pin ejection device of the present invention is provided.

[0018] Figure 7 A schematic diagram of the overall structure of a second embodiment of an elastic firing pin ejection device of the present invention is provided.

[0019] Figure 8 A schematic diagram of the overall structure of Embodiment 3 of an elastic firing pin ejection device of the present invention is provided.

[0020] As shown in the figure: 1. Firing pin; 2. Firing pin seat; 3. Trigger assembly; 4. Fixed frame; 5. Locking spring; 1-1. Firing pin head; 1-2. Firing pin tail; 1-3. Firing pin forearm; 1-4. Firing pin rear arm; 2-1. Firing pin seat fixing part; 2-2. Firing pin seat front chamber; 2-3. Firing pin seat rear chamber; 3-1. Trigger shaft; 3-2. Trigger lock head; 3-3. Trigger body; 4-1. Fixed frame fixing slot; 4-2. Fixed frame trigger shaft hole. DETAILED DESCRIPTION

[0021] In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. The same parts are represented by the same figure marks. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0022] Example 1

[0023] like Figures 1 to 6 As shown, it includes a firing pin 1, a firing pin seat 2, a trigger group 3, a fixing frame 4 and an auxiliary locking spring 5. The firing pin 1 is an elastic body as a whole, which ejects the projectile with its elastic force. The firing pin 1 includes a firing pin forearm 1-3 and a firing pin rear arm 1-4. The end of the firing pin forearm 1-3 is a firing pin head 1-1, and the end of the firing pin rear arm 1-4 is a firing pin tail 1-2. The firing pin seat 2 includes a fixing part 2-1, a firing pin seat front chamber 2-2 and a firing pin seat rear chamber 2-3. The trigger group 3 includes a trigger shaft 3-1, a trigger lock head 3-2 and a trigger body 3-3. The fixing frame 4 includes a fixing groove 4-1 and a trigger shaft hole 4-2. The auxiliary locking spring 5 is an elastic member, one end of which is directly or indirectly connected to the trigger group 3 is directly or indirectly connected to the fixing frame 4, the firing pin 1 is an elastic body with two arms that can be closed and opened; the fixing portion 2-1 is fixed in the fixing groove 4-1, the firing pin head 1-1 is installed in the front chamber 2-2 of the firing pin seat, and the firing pin tail 1-2 is installed in the rear chamber 2-3 of the firing pin seat. The firing pin head 1-1 can reciprocate in the front chamber 2-2 of the firing pin seat with the movement of the firing pin forearm 1-3; the trigger shaft 3-1 is inserted into the trigger shaft hole 4-2, the trigger group 3 rotates relative to the fixing frame 4 through the trigger shaft 3-1, the trigger shaft 3-1 and the trigger body 3-3 are separable, and the trigger lock head 3-2 is used to lock and unlock the firing pin 1 to control the firing of the firing pin 1.

[0024] The device stores energy when the firing pin front arm 1-3 and the firing pin rear arm 1-4 are closed under the action of external force.

[0025] After the firing pin front arm 1-3 and the firing pin rear arm 1-4 are closed to a certain extent, the auxiliary locking spring 5 drives the trigger body 3-3 to rotate counterclockwise so that the trigger lock head 3-2 locks the firing pin front arm 1-3, and the device is in a ready-to-fire state.

[0026] The trigger body 3-3 rotates clockwise to cause the trigger lock head 3-2 to unlock the firing pin forearm 1-3, and the auxiliary locking spring 5 plays a buffering role when the trigger body 3-3 rotates clockwise.

[0027] After the trigger lock 3-2 unlocks the firing pin forearm 1-3, the firing pin forearm 1-3 drives the firing pin head 1-1 to move forward.

[0028] Example 2

[0029] Figure 7 The difference between the shown embodiment 2 and embodiment 1 is that the auxiliary locking spring 5 is a tension spring. When locking, the auxiliary locking spring 5 drives the trigger group 3 to rotate with a pulling force so that the trigger lock head 3-2 locks the firing pin forearm 1-3; it is also different from embodiment 1 in that the trigger lock head 3-2 and the trigger body 3-3 are separable.

[0030] Example 3

[0031] Figure 8 The difference between the shown embodiment 3 and the embodiments 1 and 2 is that the auxiliary locking spring 5 uses a V-shaped spring. When locking, the auxiliary locking spring 5 drives the trigger group 3 to rotate with its tension so that the trigger lock head 3-2 locks the firing pin forearm 1-3; the difference between the shown embodiment 3 and the embodiments 1 and 2 is that the trigger shaft 3-1, the trigger lock head 3-2 and the trigger body 3-3 are an integral whole.

[0032] Although the terms and schematic diagrams such as firing pin 1, firing pin seat 2, trigger group 3, fixing frame 4, auxiliary locking spring 5, firing pin head 1-1, firing pin tail 1-2, firing pin front arm 1-3, firing pin rear arm 1-4, firing pin seat fixing part 2-1, firing pin seat front chamber 2-2, firing pin seat rear chamber 2-3, trigger shaft 3-1, trigger lock head 3-2, trigger body 3-3, fixing frame fixing groove 4-1, fixing frame trigger shaft hole 4-2 are used in this article, it does not exclude the possibility of using other terms and schematic diagrams, nor does it limit the factors such as materials, shapes, sizes, elasticity, and positions that do not violate the principles of the present invention. The use of these terms and schematic diagrams is only for more convenient description and explanation of the essence of the present invention. It is contrary to the spirit of the present invention to interpret them as any additional restrictions. The above description is only a preferred embodiment of the present invention patent, and is not intended to limit the present invention patent. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention patent should be included in the protection scope of the present invention patent.

Claims

1. An elastic firing pin ejection device, characterized in that: The invention comprises a firing pin (1), a firing pin seat (2), a trigger group (3), a fixing frame (4) and a locking spring (5); the firing pin (1) comprises a firing pin front arm (1-3) and a firing pin rear arm (1-4); the end of the firing pin front arm (1-3) is a firing pin head (1-1); the end of the firing pin rear arm (1-4) is a firing pin tail (1-2); the firing pin seat (2) comprises a fixing part (2-1), a firing pin seat front chamber (2-2) and a firing pin seat rear chamber (2-3); the trigger group (3) comprises a trigger shaft (3-1), a trigger locking head (3-2) and a trigger body (3-3); the fixing frame (4) comprises a fixing groove (4-1) and a trigger shaft hole (4-2); the locking spring (5) is an elastic member, which provides a driving force for the rotation of the trigger group.

2. The elastic firing pin ejection device according to claim 1, characterized in that: The firing pin (1) is an elastic body with two arms that can be closed and opened.

3. The elastic firing pin ejection device according to claim 1, characterized in that: The fixing portion (2-1) is fixed in the fixing groove (4-1), the firing pin head (1-1) is installed in the firing pin seat front chamber (2-2), and the firing pin tail (1-2) is installed in the firing pin seat rear chamber (2-3). The firing pin head (1-1) can reciprocate in the firing pin seat front chamber (2-2) along with the movement of the firing pin forearm (1-3).

4. The elastic firing pin ejection device according to claim 1, characterized in that: The trigger shaft (3-1) is inserted into the trigger shaft hole (4-2), the trigger assembly (3) rotates relative to the fixing frame (4) via the trigger shaft (3-1), and the trigger lock head (3-2) is used to lock and unlock the firing pin (1) to control the firing of the firing pin (1).

5. The elastic firing pin ejection device according to claim 1, characterized in that: When the firing pin front arm (1-3) and the firing pin rear arm (1-4) are closed, the auxiliary locking spring (5) drives the trigger group (3) to rotate forward so that the trigger lock head (3-2) locks the firing pin (1), and the trigger group (3) rotates backward to unlock the firing pin (1). The auxiliary locking spring (5) plays a buffering role when the trigger group (3) rotates backward. After unlocking, the firing pin front arm (1-3) drives the firing pin head (1-1) to move forward.