A trigger device

Abstract

The present invention discloses a trigger device, including a guide cylinder parallel to the launch trajectory of an external missile, wherein an elastic member 1 and a slider are built into the guide cylinder, wherein the elastic member 1 drives the slider to move forward by releasing elastic potential energy, and a pulling arm for connecting an external fuse is arranged laterally on the slider, wherein the pulling arm passes through a groove formed on the guide cylinder, and the length direction of the groove is consistent with the length direction of the guide cylinder. By arranging the elastic member 1, the slider and the pulling arm can be driven to move and provide kinetic energy for removing the external fuse. Furthermore, by arranging the guide cylinder, the moving directions of the slider and the pulling arm can be limited to be consistent with the launch trajectory of the external missile, thereby ensuring that the external fuse can be smoothly removed from the external missile, and the process will not generate an obvious component force perpendicular to the launch trajectory, thereby reducing the interference of the process of removing the external fuse on the movement of the external missile along the predetermined launch trajectory.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of starting mechanisms, and in particular to a trigger device. Background Art

[0002] Certain projectiles (such as artificial rain-making and hail-prevention shells and fireworks) use a fuse as a starting device. When the fuse of a projectile is at its front end, if it is to be launched, the fuse must be removed along the forward direction of the projectile. The device used to remove the fuse is the trigger device.

[0003] The trigger device in the prior art cannot ensure that the direction of removing the fuse is consistent with the forward direction of the projectile, so it is necessary to design a new type of trigger device. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a trigger device.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A trigger device comprises a guide tube parallel to the launch trajectory of an external projectile, wherein an elastic member and a slider are built into the guide tube, wherein the elastic member drives the slider to move forward by releasing elastic potential energy, wherein a pulling arm for connecting an external fuze is arranged laterally on the slider, wherein the pulling arm extends out from a groove formed on the guide tube, and the length direction of the groove is consistent with the length direction of the guide tube.

[0007] As a further improvement of the above technical solution:

[0008] The trigger device also includes a pull rod connected to the slide block, and the pull rod passes through the rear end of the guide cylinder.

[0009] The trigger device also includes a locking mechanism for temporarily fixing the slider in the preparation position; the locking mechanism includes a locking pin, which penetrates the guide cylinder and is then inserted into the locking hole of the slider.

[0010] The locking mechanism also includes an elastic member 2 mounted on the locking pin, and a magnetic member 1 arranged in the locking hole; when the slider is in the preparatory position, the locking pin can compress the elastic member 2 under the attraction of the magnetic member 1 and insert into the locking hole; when the slider is not in the preparatory position, the elastic member 2 can push the locking pin out of the guide cylinder.

[0011] The pulling arm comprises a main arm fixed to the slider, and a secondary arm hinged to the main arm. The secondary arm can only be flipped forward around a hinge point, and a flip angle β of the secondary arm is not less than 60°.

[0012] The pulling arm also includes a fixing platform connected to the main arm, and a lock buckle 1 for clamping the auxiliary arm is provided on the fixing platform.

[0013] The slide block is provided with an insertion rod facing forward, the front end of the guide cylinder is closed by a plug, and the rear end of the plug is formed with an insertion hole for the insertion rod to penetrate, and the insertion hole cooperates with the insertion rod.

[0014] The front end of the guide cylinder is closed by a plug, and a buffer is provided at the rear end of the plug or / and the front end of the sliding block.

[0015] The front end of the guide tube is closed by a plug, and the front end of the plug is provided with a lock buckle 2 for clamping an external fuse.

[0016] The trigger device also includes a mounting seat for connecting to an external structure, and the mounting seat is connected to the rear end of the guide cylinder.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] By providing the elastic member 1, the slider and the pulling arm can be driven to move and provide kinetic energy for removing the external fuse. In addition, by providing the guide cylinder, the movement direction of the slider and the pulling arm can be limited to be consistent with the launch trajectory of the external missile, thereby ensuring that the external fuse can be smoothly removed from the external missile, and the process will not generate an obvious component force perpendicular to the launch trajectory, thereby reducing the interference of the process of removing the external fuse on the movement of the external missile along the predetermined launch trajectory. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the trigger device (before firing);

[0020] Figure 2 This is a schematic diagram of the trigger device (during firing);

[0021] Figure 3 yes Figure 2 A local enlarged schematic diagram of the middle A;

[0022] Figure 4 is a cross-sectional schematic diagram of the trigger device;

[0023] Figure 5 yes Figure 4 A partial enlarged schematic diagram of point B in the middle;

[0024] Figure 6 yes Figure 4 A partial enlarged schematic diagram of point C in the middle.

[0025] The numbers in the figure represent: 01, external projectile; 02, external fuze; 1, guide tube; 11, groove; 2, elastic part one; 3, slider; 31, pulling arm; 311, main arm; 312, auxiliary arm; 313, fixing platform; 314, lock buckle one; 32, locking hole; 33, magnetic part one; 34, insertion rod; 4, pull rod; 5, locking mechanism; 51, locking pin; 511, limit plate; 52, elastic part two; 53, ring sleeve; 531, baffle; 55, magnetic part three; 6, plug; 61, socket; 62, lock buckle two; 7, buffer part; 8, mounting seat. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example

[0028] like Figures 1 to 5 As shown, the trigger device of this embodiment includes a guide tube 1 parallel to the launch trajectory of the external missile 01, and the guide tube 1 has an elastic member 2 and a slider 3 built therein. The elastic member 2 drives the slider 3 to move forward by releasing elastic potential energy. The slider 3 is provided with a pulling arm 31 for connecting the external fuze 02 along the side, and the pulling arm 31 passes through a groove 11 formed in the guide tube 1, and the length direction of the groove 11 is consistent with the length direction of the guide tube 1. The guide tube 1 is configured as a cylindrical tube, and its length direction is parallel to the launch trajectory of the external missile 01. The front end of the guide tube 1 is closed by a plug 6, and the rear end is closed by a mounting seat 8. The slider 3 is located in front of the elastic member 2, and the rear end of the elastic member 2 is against the mounting seat 8. In this embodiment, the elastic member 2 is configured as a spring. The wall of the guide tube 1 is formed with a linear groove 11 on the side close to the external missile 01 for the pulling arm 31 to pass through the guide tube 1, and the length direction of the linear groove 11 is consistent with the length direction of the guide tube 1. Initially, the elastic member 2 is in a compressed state, and the slider 3 is in a preparatory position (i.e. Figure 1 and Figure 3), at this time, the pulling arm 31 connected to the external fuse 02 is located right in front of the external missile 01, and the external fuse 02 is in an unremoved state. When the trigger device is triggered, the elastic member 12 releases elastic potential energy and pushes the slider 3 to move forward in the guide cylinder 1. At this time, the pulling arm 31 pulls the external fuse 02 forward to remove it from the external missile 01, thereby achieving triggering. In this embodiment, by providing the elastic member 12, the slider 3 and the pulling arm 31 can be driven to move and provide kinetic energy for removing the external fuse 02. In addition, by providing the guide cylinder 1, the moving directions of the slider 3 and the pulling arm 31 can be limited to be consistent with the launch trajectory of the external missile 01, thereby ensuring that the external fuse 02 can be smoothly removed from the external missile 01, and the process will not generate an obvious component force perpendicular to the launch trajectory, thereby reducing the interference of the process of removing the external fuse 02 on the movement of the external missile 01 along the predetermined launch trajectory.

[0029] In this embodiment, the trigger device also includes a pull rod 4 connected to the slider 3, and the pull rod 4 is inserted from the rear end of the guide tube 1. When preparing for firing, the pull rod 4 is first pulled backward to drive the slider 3 to move backward, thereby compressing the elastic member 2 located behind the slider 3, so that the elastic member 2 accumulates elastic potential energy. After the slider 3 reaches the preparatory position, the pull rod 4 is connected to the external excitation device, so that the elastic member 2 and the slider 3 are in a static state. When the external excitation device is triggered, it is instantly loosened from the pull rod 4, and the elastic member 2 releases elastic potential energy due to the loss of the pressure of the slider 3, and at the same time pushes the slider 3 to move forward in the guide tube 1. At this time, the pulling arm 31 pulls the external fuse 02 forward to remove it from the external projectile 01, thereby achieving triggering. By setting the pull rod 4, it is convenient for the operator to move the slider 3 to the preparatory position and to achieve connection with the external excitation device.

[0030] In this embodiment, the trigger device also includes a locking mechanism 5 for temporarily fixing the slider 3 in the preparatory position; the locking mechanism 5 includes a locking pin 51, which penetrates the guide cylinder 1 and is inserted into the locking hole 32 of the slider 3. The locking mechanism 5 is a safety device. Before the external excitation device is triggered, the locking pin 51 is inserted into the slider 3 so that it always presses the elastic member 1 2 and cannot move relative to the guide cylinder 1, thereby effectively avoiding accidental triggering and improving the safety performance of the trigger device. Before firing, the operator only needs to pull the locking pin 51 out of the locking hole 32 to unlock. The mechanism has a simple structure and is easy to operate. Further, the locking mechanism 5 also includes an elastic member 2 52 sleeved on the locking pin 51, and a magnetic member 1 33 arranged in the locking hole 32; when the slider 3 is in the preparatory position, the locking pin 51 can compress the elastic member 2 52 under the attraction of the magnetic member 1 33 and insert it into the locking hole 32; when the slider 3 is not in the preparatory position, the elastic member 2 52 can push the locking pin 51 out of the guide cylinder 1. Specifically, a ring sleeve 53 is fixed outside the guide cylinder 1, and a baffle 531 is connected to the side of the ring sleeve 53 facing away from the guide cylinder 1, and an annular limiting plate 511 is formed on the pin rod of the locking pin 51 along the radial direction. The annular limiting plate 511 is located between the baffle 531 and the ring sleeve 53, and the elastic member 2 52 sleeved on the locking pin 51 is set as a spring. In the original length state, its bottom end is against the ring sleeve 53, and its top end is located below the limiting plate 511, and there is a gap between the annular limiting plate 511 and the baffle 531. The upper surface of the limiting plate 511 is provided with a magnetic member 3 55, which can make the locking pin 51 separate from the elastic member 2 52 and hang in the air by attracting the baffle 531. When the limit plate 511 is placed on the elastic member 2 52 at its original length, the bottom end of the locking pin 51 has not entered the inner cavity of the guide cylinder 1. At this time, if the slider 3 moves to the preparatory position, the magnetic member 1 33 in the locking hole 32 will move downward into the locking hole 32 under the attraction, forming a lock; at this time, since the limit plate 511 moves downward with the locking pin 51, the elastic member 2 52 is pressed downward. Before launching the external missile 01, the operator pulls the locking pin 51 upward so that the magnetic member 3 55 is attracted and connected to the lower surface of the baffle 531. At this time, the bottom end of the locking pin 51 moves out of the guide cylinder 1, thereby preventing the locking pin 51 from interfering with the elastic member 1 2 in the moving state. After the launch is completed, the operator only needs to push the locking pin 51 downward so that the magnetic member 3 55 and the baffle 531 are separated from the attraction, and the limit plate 511 will be re-placed on the elastic member 2 52 at its original length.

[0031] In this embodiment, the pulling arm 31 includes a main arm 311 fixed to the slider 3, and a secondary arm 312 hinged to the main arm 311. The secondary arm 312 can only flip forward around the hinge point, and the flip angle β of the secondary arm 312 is not less than 60°. The end of the main arm 311 is set to be a groove type instead of a fully penetrating open type, and then hinged with the secondary arm 312, so as to prevent the secondary arm 312 from rotating to the rear end, ensuring that it can only flip forward around the hinge point. When the slider 3 hits the front end of the guide cylinder 1, due to inertia, the secondary arm 312 will maintain a tendency to move forward, so it flips. In addition, the flip angle β of the secondary arm 312 is not less than 60° (90° in this embodiment), which ensures that the secondary arm 312 can shrink enough length by flipping toward the guide cylinder 1, thereby making room for the external missile 01 to move and avoiding the collision between the secondary arm 312 and the external missile 01 to cause a safety accident. Furthermore, in order to prevent the auxiliary arm 312 from rebounding, a fixing platform 313 is further provided on the main arm 311, and a lock 1 314 for clamping the auxiliary arm 312 is provided on the fixing platform 313. When the auxiliary arm 312 flips forward and reaches a certain angle, it enters the lock 1 314, and under the restriction of the lock 1 314, the auxiliary arm 312 cannot rebound. Thus, the safety performance of the trigger device can be further improved.

[0032] In this embodiment, the slider 3 is provided with an insertion rod 34 facing forward, the front end of the guide cylinder 1 is closed by a plug 6, and the rear end of the plug 6 is formed with a plug hole 61 for the insertion of the insertion rod 34, and the plug hole 61 cooperates with the insertion rod 34; the rear end of the plug 6 or / and the front end of the slider 3 are provided with a buffer 7. During the movement of the slider 3 from the preparatory position to the front end of the guide cylinder 1, the elastic potential energy of the elastic member 2 is converted into the kinetic energy of the slider 3. When the slider 3 moves to the front end, the insertion rod 34 is inserted into the plug hole 61, and the two are connected, so that the slider 3 can be prevented from rebounding, thereby effectively improving the stability of the trigger device. At the same time, by providing the buffer 7, the impact force between the slider 3 and the plug 6 can be reduced.

[0033] In this embodiment, the front end of the guide tube 1 is closed by a plug 6, and a lock buckle 62 for clamping the external fuse 02 is provided at the front end of the plug 6. When the slider 3 hits the front end of the guide tube 1, the auxiliary arm 312 flips forward, driving the pulled external fuse 02 to flip forward. In order to prevent the external fuse 02 from affecting the movement of the external projectile 01, a lock buckle 62 is provided at the front end of the plug 6 to clamp the external fuse 02 flipped forward, thereby enhancing the reliability and safety of the device.

[0034] In this embodiment, the trigger device further includes a mounting seat 8 for connecting to an external structure, and the mounting seat 8 is connected to the rear end of the guide cylinder 1. The front end of the mounting seat 8 is inserted into the guide cylinder 1 to form a seal; by providing the mounting seat 8, the trigger device can be combined with the external structure.

[0035] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A trigger device, characterized in that: The invention comprises a guide tube (1) parallel to the launch trajectory of an external projectile (01), wherein the guide tube (1) has an elastic member (2) and a slider (3) built therein, wherein the elastic member (2) drives the slider (3) to move forward by releasing elastic potential energy, and the slider (3) is provided with a pulling arm (31) for connecting to an external fuze (02) along the side, and the pulling arm (31) extends from a groove (11) formed in the guide tube (1), and the length direction of the groove (11) is consistent with the length direction of the guide tube (1); the pulling arm (31) comprises a fixing member (2) and a slider (3) fixed to the slider (3). The invention relates to a pulling arm (311) having a main arm (311) and a secondary arm (312) hinged to the main arm (311), wherein the secondary arm (312) can only be flipped forward around a hinge point, and a flip angle β of the secondary arm (312) is not less than 60°; the pulling arm (31) further comprises a fixing platform (313) connected to the main arm (311), and a locking buckle (314) for clamping the secondary arm (312) is provided on the fixing platform (313); the guide cylinder (1) limits the movement directions of the slider (3) and the pulling arm (31) to be consistent with the launch trajectory of the external projectile (01).

2. The trigger device according to claim 1, characterized in that: The trigger device further comprises a pull rod (4) connected to the slide block (3), wherein the pull rod (4) extends out from the rear end of the guide cylinder (1).

3. The trigger device according to claim 1, characterized in that: The trigger device further comprises a locking mechanism (5) for temporarily fixing the slider (3) at the preparation position; the locking mechanism comprises a locking pin (51), wherein the locking pin (51) penetrates the guide cylinder (1) and is then inserted into the locking hole (32) of the slider (3) for molding.

4. The trigger device according to claim 3, characterized in that: The locking mechanism (5) further comprises an elastic member 2 (52) sleeved on the locking pin (51), and a magnetic member 1 (33) arranged in the locking hole (32); when the slider (3) is in the preparation position, the locking pin (51) can compress the elastic member 2 (52) under the attraction of the magnetic member 1 (33) and be inserted into the locking hole (32); when the slider (3) is not in the preparation position, the elastic member 2 (52) can push the locking pin (51) out of the guide cylinder (1).

5. The trigger device according to claim 1, characterized in that: The slider (3) is provided with an insertion rod (34) facing forward, the front end of the guide cylinder (1) is closed by a plug (6), the rear end of the plug (6) is formed with an insertion hole (61) for the insertion rod (34) to pass through, and the insertion hole (61) cooperates with the insertion rod (34).

6. The trigger device according to claim 1, characterized in that: The front end of the guide cylinder (1) is closed by a plug (6), and a buffer component (7) is provided at the rear end of the plug (6) and / or the front end of the slider (3).

7. The trigger device according to claim 1, characterized in that: The front end of the guide tube (1) is closed by a plug (6), and the front end of the plug (6) is provided with a lock buckle 2 (62) for clamping the external fuse (02).

8. The trigger device according to claim 1, characterized in that: The trigger device further comprises a mounting seat (8) for connecting to an external structure, wherein the mounting seat (8) is connected to the rear end of the guide cylinder (1).

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