Resettable safety system based on micro hook and lock system control

Abstract

The application discloses a resettable safety system based on a micro hook and lock system control, which comprises a positioning mechanism, an electromagnetic pin puller, an electromagnetic pin puller positioning mechanism, a micro hook and lock system and an explosion-proof sliding block; an explosion-proof sliding block base is arranged between the positioning mechanism and the electromagnetic pin puller positioning mechanism; a hole for accommodating the explosion-proof sliding block is formed in the explosion-proof sliding block base, the explosion-proof sliding block is embedded in the hole and forms a limiting hole with the explosion-proof sliding block base; the electromagnetic pin is ejected from the electromagnetic pin puller and clamped into the limiting hole when power is off; the electromagnetic pin is inhaled into the electromagnetic pin puller when power is on; the second hook body, the second hook tongue of the hook and lock system and the explosion-proof sliding block move to the first hook body under the action of external force and a spring and are aligned with a booster, a detonating tube and a detonator; and the second hook tongue is rotated and hooked with the first hook tongue. The application solves the problem of disarming when ammunition attacks under environmental force; and the safety system of the fuze that has been disarmed restores the armed state when the attack target is abandoned, and the weapon is not fired.

Description

Technical fields:

[0001] This invention relates to safety systems in the field of ammunition fuse safety unlocking technology, and more particularly to a resettable safety system based on a miniature hook-lock system control. Background Technology

[0002] With the continuous development of intelligent weapon systems, higher demands are placed on fuse control for efficient target engagement. Furthermore, with the rapid advancements in microelectronics technology, modern fuses are gradually becoming smaller and more miniaturized, providing more space for the integration of components such as communication, sensing, and detonation sequences. This also sets higher standards for fuse research and manufacturing, leading to miniaturized fuses that are both agile and intelligent.

[0003] The safety system is a core component of the fuze, ensuring that it will not disengage or explode in unexpected circumstances. This is a crucial indicator of fuze performance. Therefore, the safety system must not only be small in size but also possess high reliability and stability.

[0004] Most existing safety systems, once disengaged, cannot be reset when the target is abandoned, which can easily lead to serious consequences such as accidental detonation. Therefore, how to control the safety system so that it can be restored to a safe state after disengagement, ensuring that the weapon system will not fire, is a technical challenge.

[0005] Secondly, some existing safety systems still experience mis-reset fuses even when the fuse is released due to environmental forces, leading to misfiring and malfunction. Therefore, designing a mechanical structure that can reliably maintain the released fuse state is also a challenge.

[0006] In addition, most existing safety systems have limited displacement stroke. How to increase the movement stroke of the explosion-proof slider and thus improve the working reliability of the safety system is also a technical problem that needs to be solved.

[0007] Furthermore, as fuse sizes continue to shrink, safety systems must also become smaller. However, existing safety systems may experience performance changes as their size decreases. Therefore, while minimizing size, it is still necessary to maintain functional reliability. Providing a highly stable and compact safety system structure is a technical challenge that needs to be addressed. Summary of the Invention

[0008] Purpose of the invention: To address the shortcomings of existing technologies, this invention proposes a resettable safety system based on a micro-hook and lock system, which solves the problem of disarming the safety mechanism when ammunition needs to be used for attack under environmental forces; and enables the fuse safety system to be restored to the safe state after the weapon system has abandoned its attack target, ensuring that the weapon will not fire again.

[0009] Technical solution: The present invention provides a resettable safety system based on a miniature hook-lock system, comprising a positioning mechanism, an electromagnetic pin puller, an electromagnetic pin puller positioning mechanism, a miniature hook-lock system, and an explosion-proof slider; an explosion-proof slider base is fixed between the positioning mechanism and the electromagnetic pin puller positioning mechanism.

[0010] The explosion-proof slider base has a hole for accommodating the explosion-proof slider, and the explosion-proof slider is embedded in the hole to form a limiting hole between itself and the explosion-proof slider base;

[0011] A detonating tube runs vertically through the explosion-proof slider, a detonator is located above the explosion-proof slider, and a detonating charge is located below the explosion-proof slider.

[0012] The electromagnetic pin puller is fixed on the electromagnetic pin puller positioning mechanism; the electromagnetic pin puller contains an electromagnetic pin, which pops out from the electromagnetic pin puller when the power is off and gets stuck in the limiting hole to limit the explosion-proof slider, thus misaligning the explosive, detonating cord and detonator.

[0013] The miniature hook lock system includes a first hook body, a second hook body, and a limiting pin; one end of the first hook body is connected to a first hook tongue, and one end of the second hook body is connected to a second hook tongue;

[0014] A spring is provided on one side of the explosion-proof slider, and the end of the second hook body away from the second hook tongue is fixed on the explosion-proof slider; the end of the first hook body away from the first hook tongue is fixed on the explosion-proof slider base;

[0015] When the electromagnetic pin is energized, it is drawn into the electromagnetic pin puller. The second hook body, the second hook tongue, the explosion-proof slider and the detonating tube move toward the first hook body under the action of external force and spring until the explosive charge, the detonating tube and the detonator are aligned. The second hook tongue rotates with the first hook tongue and is hooked and locked together.

[0016] Above the limiting pin is an electromagnetic pin puller that attracts the limiting pin to move upward; the second hook body has a hole for engaging the limiting pin. After the power is cut off, the limiting pin is embedded in the hole generated by the rotation of the second hook tongue in the second hook body under its own gravity, limiting the first and second hook tongues after the hook lock, and aligning the explosive, detonating cord and detonator.

[0017] The electromagnetic pin puller is equipped with a spring. When the power is off, the spring causes the electromagnetic pin to pop out and lock into the limiting hole to limit the explosion-proof slider.

[0018] The electromagnetic pin puller positioning mechanism has a groove for fixing the electromagnetic pin puller.

[0019] The positioning mechanism and the electromagnetic pin puller positioning mechanism have grooves for fixing the explosion-proof slider base.

[0020] One end of the spring is fixed to the explosion-proof slider, and the other end of the spring is connected to a protrusion.

[0021] The explosion-proof slider base has a groove for engaging the protrusion, and the spring is connected to the explosion-proof slider base through the protrusion.

[0022] The explosion-proof slider has a positioning hole on one side for fixing the second hook body.

[0023] The limit pin electromagnetic puller is equipped with a limit pin electromagnetic puller electromagnetic pin.

[0024] The second hook rotates clockwise, while the first hook rotates counterclockwise, and the first and second hooks are locked together.

[0025] The electromagnetic pin puller has a cylindrical structure and is fixed in position by an electromagnetic pin puller positioning mechanism.

[0026] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0027] (1) The present invention uses an electromagnetically driven electromagnetic pin puller as the first-level safety system of the present invention, and uses a micro hook lock system and an electromagnetic pin puller as the second-level safety system. The safety structures adopted are all recoverable, realizing the switching between the safe state and the safety release state, improving the reliability and security of the safety system of the present invention. When the attack is canceled, it is reset and restored to the safe state.

[0028] (2) The present invention uses a miniature hook and lock system as a secondary safety device. The miniature hook and lock system has high stability and meets the requirements of high safety and high reliability of the fuse safety system. Using the miniature hook and lock system as a secondary safety device is a structural innovation.

[0029] (3) The present invention uses an electromagnetically driven electromagnetic pin puller as the first-level safety system. The electromagnetic drive is controlled by an external circuit, which reduces the probability of the fuse misfiring and increases the reliability of the fuse.

[0030] (4) The present invention utilizes the recoil force in the external environment as the secondary safety release condition. The drive scheme is reliable and the drive energy is low, which meets the needs of high efficiency and energy saving of ammunition.

[0031] (5) The present invention is a micro-miniature safety system with a small size and a diameter of no more than 40mm, which is in line with the development trend of ammunition miniaturization and saves more space for ammunition to load other structures. Attached Figure Description

[0032] Figure 1 This is a structural diagram of the resettable safety system based on a miniature hook-lock system controlled by the present invention.

[0033] Figure 2 This is a schematic diagram of the electromagnetic pin puller structure of the resettable safety system based on the micro hook lock system control of the present invention;

[0034] Figure 3 This is a schematic diagram of the micro hook lock system structure of the resettable safety system based on the micro hook lock system control of the present invention;

[0035] Figure 4 This is a schematic diagram illustrating the safety state of the resettable safety system controlled by the miniature hook-lock system of the present invention;

[0036] Figure 5 This is a schematic diagram of the first-level safety release state of the resettable safety system based on the micro hook lock system control of the present invention;

[0037] Figure 6 This is a schematic diagram of the secondary safety release state of the resettable safety system based on the micro hook lock system control of the present invention;

[0038] Figure 7 This is a schematic diagram of the reset state of the resettable safety system based on the micro hook lock system control of the present invention. Detailed Implementation

[0039] like Figures 1 to 7 As shown, the resettable safety system based on a miniature hook-lock system of the present invention includes a positioning mechanism 6, an electromagnetic pin puller 3, an electromagnetic pin puller positioning mechanism 4, a miniature hook-lock system, and an explosion-proof slider 2. The positioning mechanism 6 is used to fix the position of the resettable safety system based on the miniature hook-lock system of the present invention. An explosion-proof slider base 9 is fixed between the positioning mechanism 6 and the electromagnetic pin puller positioning mechanism 4. The resettable safety system based on the miniature hook-lock system of the present invention is connected to the detonation control system, the detonation control circuit, and the deactivation control circuit.

[0040] The explosion-proof slider base 9 has a hole for accommodating the explosion-proof slider 2. The explosion-proof slider 2 is embedded in the hole and forms a limiting hole between itself and the explosion-proof slider base 9 in a safe state.

[0041] A detonating tube 8 runs vertically through the explosion-proof slider 2. A detonator 1 is located above the explosion-proof slider 2, and a detonating charge 10 is located below the explosion-proof slider 2.

[0042] The electromagnetic pin puller 3 is fixed on the electromagnetic pin puller positioning mechanism 4 to form a first-level safety. The electromagnetic pin puller 3 contains an electromagnetic pin 31. When the power is off, the electromagnetic pin 31 pops out from the electromagnetic pin puller 3 and locks into the limiting hole to limit the explosion-proof slider 2 and the detonating tube 8, causing the explosive charge 10, the detonating tube 8 and the detonator 1 to be misaligned.

[0043] The miniature hook lock system includes a first hook body 71, a second hook body 72, and a limiting pin 75; one end of the first hook body 71 is connected to a first hook tongue 74, and one end of the second hook body 72 is connected to a second hook tongue 73.

[0044] A spring 21 is provided on one side of the explosion-proof slider 2. One end of the spring 21 is fixed to the explosion-proof slider 2, and the other end of the spring 21 is connected to a protrusion. A groove is provided on the explosion-proof slider base 9 to engage with the protrusion, so that the other end of the spring 21 is embedded in the groove of the explosion-proof slider base 9.

[0045] The end of the second hook body 72 away from the second hook tongue 73 is fixed to the explosion-proof slider 2; the end of the first hook body 71 away from the first hook tongue 74 is fixed to the explosion-proof slider base 9. In this embodiment, the first hook body 71 is fixed to the explosion-proof slider base 9 by screws.

[0046] When the electromagnetic pin 31 is energized, it is drawn into the electromagnetic pin puller 3, and the movement of the explosion-proof slider 2 is no longer obstructed. Under the action of external force and spring 21, the second hook body 72, the second hook tongue 73, the explosion-proof slider 2 and the detonating tube 8 move towards the first hook body 71 until the explosive charge 10, the detonating tube 8 and the detonator 1 are aligned. At this time, the limiting hole disappears, and the explosion-proof slider base 9 restricts the explosion-proof slider 2 to stop moving. At this time, the spring 21 returns to its original length, and the second hook tongue 73 rotates and hooks and locks with the first hook tongue 74. The miniature hook and lock system is in the hook and lock state.

[0047] Above the limiting pin 75 is an electromagnetic pin puller 5 that attracts the limiting pin 75 to move upwards; the second hook body 72 has a hole for engaging the limiting pin 75. After power is cut off, the limiting pin 75, under its own gravity, is embedded in the hole left by the second hook tongue 73 in the second hook body 72, which limits the first hook tongue 74 and the second hook tongue 73 after hook locking, thus aligning the explosive charge 10, detonating cord 8, and detonator 1. The miniature hook locking system is a two-stage safety system. The miniature hook locking system controls the movement of the explosion-proof slider 2.

[0048] The electromagnetic pin-pulling positioning mechanism 4 has a semi-circular step for fixing the electromagnetic pin-pulling device 3. The electromagnetic pin-pulling device 3 is a cylindrical structure and is fixed in position by the electromagnetic pin-pulling positioning mechanism 4.

[0049] The electromagnetic pin 31 is drawn into and extends from the electromagnetic pin puller 3. When energized, the electromagnetic pin 31 is drawn into the electromagnetic pin puller 3; when de-energized, the electromagnetic pin 31 extends under the action of the spring in the electromagnetic pin puller 3 and locks the explosion-proof slider 2 for limiting.

[0050] The detonator 1 is located above the explosion-proof slider 2. The energy of the detonator 1 is transferred through the detonating tube 8, thereby triggering the action of the explosive charge.

[0051] The spring 21 and the explosion-proof slider 2 are integrated as a whole. In this embodiment, the second hook body 72 is fixed to the explosion-proof slider 2 by screws.

[0052] In the initial state, the electromagnetic pin 31 of the electromagnetic pin puller is locked in the limiting holes of the explosion-proof slider 2 and the explosion-proof slider base 9. The miniature hook-lock system 7 is in its original state, and the explosive charge 10, detonating cord 8, and detonator 1 are in a misaligned state. The safety system of this invention is in a safe state. After receiving the release command, the release control circuit energizes the electromagnetic pin puller 3, and the electromagnetic pin 31 is drawn into the electromagnetic pin puller 3. The explosion-proof slider 2 is released from its limiting position and can move horizontally. After the ammunition is fired, the safety system is subjected to recoil force. The second hook body 72, the second hook tongue 73, the explosion-proof slider 2, and the detonating cord 8 move together toward the hook-lock system. When the first hook body 71 moves, the spring 21 in the explosion-proof slider 2 extends. After the second hook tongue 73 contacts the first hook tongue 74, the second hook tongue 73 rotates clockwise and the first hook tongue 74 rotates counterclockwise, eventually locking the second hook tongue 73 and the first hook tongue 74 together. At this time, the lower part of the limiting pin 75 is freed up due to the rotation of the second hook tongue 73. Under the action of its own gravity, the limiting pin 75, in the de-energized state, falls vertically into the second hook body 72, limiting the hook-lock system. The second hook tongue 73 and the first hook tongue 74 cannot be opened. At this time, the explosive charge 10, the detonating cord 8, and the detonator 1 are aligned, and the system is in the safety-disarmed state. When an attack on a target is required, the detonation control circuit detonates detonator 1. If the attack is abandoned, the release control circuit energizes the limit pin electromagnetic puller 5. The electromagnetic pin 51 of the limit pin electromagnetic puller attracts the limit pin 75 to move upward. The second hook body 72, the second hook tongue 73, the explosion-proof slider 2, and the detonating tube 8 move in the opposite direction under the action of the explosion-proof slider spring 21, returning to the original state of the miniature hook-lock system 7. The release control circuit de-energizes the electromagnetic puller 3. The electromagnetic pin 31 of the electromagnetic puller pops out under the action of the spring inside the electromagnetic puller, locking the explosion-proof slider 2 and re-limiting the position of the explosion-proof slider 2. The explosive charge 10, the detonating tube 8, and the detonator 1 are misaligned, thereby achieving the reset state.

[0053] This invention relates to a resettable safety system controlled by a miniature hook-lock system, installed between the explosive charge 10 and the detonator 1. The entire safety system is fixed in position by a positioning mechanism 6 and an electromagnetic pin-pulling mechanism 4. An explosion-proof slider base 9 is located in the grooves of the positioning mechanism 6 and the electromagnetic pin-pulling mechanism 4, and the electromagnetic pin-pulling device 3 is fixed in the groove of the electromagnetic pin-pulling mechanism 4. One end of the spring 21 of the explosion-proof slider 2 is fixed to the explosion-proof slider base 9. The second hook body 72, the second hook tongue 73, and the explosion-proof slider 2 are located on the explosion-proof slider base 9 and can move horizontally. The explosion-proof slider 2 contains a detonating tube 8. The detonator 1 is located above the explosion-proof slider 2, and the explosive charge 10 is located below it. The detonating tube 8 runs vertically through the explosion-proof slider 2. The limit pin electromagnetic pin-pulling device 5 is located directly above the limit pin 75. The second hook body 72 is connected to the explosion-proof slider 2, and the first hook body 71 is fixed to the explosion-proof slider base 9.

[0054] The electrical connection of the present invention is as follows: the detonator 1, the electromagnetic pin puller 3, and the limit pin electromagnetic pin puller 5 are all connected to the release control circuit through lines, and are powered and controlled by the release control circuit.

[0055] After the ammunition is fired, the safety system is subjected to recoil force, which drives the explosion-proof slider 2 to move until the explosive charge, detonator 1, and detonating cord 8 are aligned. When attacking the target, the detonator 1 detonates. When the target is abandoned, the safety control circuit energizes the electromagnetic pin puller of the limit pin, and the limit pin 3 of the miniature hook lock system is pulled out. The spring 21 of the explosion-proof slider 2 drives the explosion-proof slider 2 to move in the opposite direction until the explosive charge 10, detonator 1, and detonating cord 8 are misaligned. The electromagnetic pin puller is de-energized, and the electromagnetic pin 3 extends and locks the explosion-proof slider 2.

[0056] The present invention provides a resettable safety system based on a miniature hook lock system, which includes a safe state, a safety release state, and a reset state.

[0057] The control method of the resettable safety system based on the miniature hook-lock system of the present invention includes the following steps:

[0058] (1) In a safe state, the explosion-proof slider 2 is equipped with a through detonating tube 8, and the explosive charge 10, the detonating tube 8 and the detonator 1 are misaligned and not connected.

[0059] (2) When transitioning from the safe state to the unlocked state, the electromagnetic safety is unlocked first, followed by the miniature hook lock system safety. In the initial state, upon receiving the command to unlock the safety system safety, the unlocking control circuit supplies power to the electromagnetic pin puller 3. The electromagnetic pin 31 is drawn into the electromagnetic pin puller 3, releasing its limit on the explosion-proof slider 2. The explosion-proof slider 2 moves horizontally, entering the first-level unlocked state. Figure 5 As shown.

[0060] After the first safety is released, the safety system experiences recoil due to the ammunition being fired. The second hook body 72, second hook tongue 73, explosion-proof slider 2, and detonating cord 8 move together toward the first hook body 71. The spring 21 in the explosion-proof slider 2 extends. After the second hook tongue 73 contacts the first hook tongue 74, the second hook tongue 73 rotates clockwise, and the first hook tongue 74 rotates counterclockwise. Finally, the second hook tongue 73 and the first hook tongue 74 are locked together. At this time, the lower part of the limiting pin 75 is freed up due to the rotation of the first hook tongue 74. Under the action of gravity, the limiting pin 75 falls vertically into the hook body 71 of the first hook-locking system, limiting the hook-locking system. The second hook tongue 73 and the first hook tongue 74 cannot be opened. At this time, the explosive charge 10, the detonating cord 8, and the detonator 1 are aligned, and the safety system safety is in the released state. Figure 6 As shown.

[0061] At this time, if the detonation control system receives the detonation signal, the detonator 1 will activate, and the energy will be transferred through the already aligned detonating tube 8, thereby triggering the action of the detonating charge 10, and finally detonating the main charge to amplify the explosive energy.

[0062] (3) If the detonation control circuit sends a recovery command, the system transitions from the safety release state to the reset state. The safety release control circuit energizes the limit pin electromagnetic puller 5, and the electromagnetic pin 51 of the limit pin electromagnetic puller attracts the limit pin 75 to move upward. The second hook body 72, the second hook tongue 73, the explosion-proof slider 2, and the detonating tube 8 move in the opposite direction under the action of the spring 21 of the explosion-proof slider 2, restoring the miniature hook lock system 7 to its original state. The safety release control circuit de-energizes the electromagnetic puller 3, and the electromagnetic pin 31 of the electromagnetic puller pops out under the action of the internal spring of the electromagnetic puller 3, locking the explosion-proof slider 2 and re-limiting the position of the explosion-proof slider 2. The explosive charge 10, the detonating tube 8, and the detonator 1 are misaligned and enter a safe reset state.

Claims

1. A resettable safety system based on a miniature hook-and-lock system, characterized in that: It includes a positioning mechanism (6), an electromagnetic pin puller (3), an electromagnetic pin puller positioning mechanism (4), a miniature hook lock system, and an explosion-proof slider (2); an explosion-proof slider base (9) is fixed between the positioning mechanism (6) and the electromagnetic pin puller positioning mechanism (4). The explosion-proof slider base (9) has a hole for accommodating the explosion-proof slider (2), and the explosion-proof slider (2) is embedded in the hole and forms a limiting hole with the explosion-proof slider base (9); A detonating tube (8) runs vertically through the explosion-proof slider (2), a detonator (1) is provided above the explosion-proof slider (2), and a detonating charge (10) is provided below the explosion-proof slider (2). The electromagnetic pin puller (3) is fixed on the electromagnetic pin puller positioning mechanism (4); the electromagnetic pin puller (3) contains an electromagnetic pin (31), which pops out from the electromagnetic pin puller (3) and locks into the limiting hole to limit the explosion-proof slider (2) when the power is off, and the explosive charge (10), detonating tube (8) and detonator (1) are misaligned. The miniature hook lock system includes a first hook body (71), a second hook body (72), and a limiting pin (75); one end of the first hook body (71) is connected to a first hook tongue (74), and one end of the second hook body (72) is connected to a second hook tongue (73); A spring (21) is provided on one side of the explosion-proof slider (2), and the end of the second hook body (72) away from the second hook tongue (73) is fixed on the explosion-proof slider (2); the end of the first hook body (71) away from the first hook tongue (74) is fixed on the explosion-proof slider base (9); When the electromagnetic pin (31) is energized, it is drawn into the electromagnetic pin puller (3). The second hook body (72), the second hook tongue (73), the explosion-proof slider (2) and the detonating tube (8) move towards the first hook body (71) under the action of external force and spring (21) until the explosive charge (10), the detonating tube (8) and the detonator (1) are aligned. The second hook tongue (73) and the first hook tongue (74) rotate and are hooked and locked together. Above the limiting pin (75) is a limiting pin electromagnetic puller (5) that attracts the limiting pin (75) to move upward; the second hook body (72) has a hole for inserting the limiting pin (75), and the limiting pin (75) is embedded in the hole on the second hook body (72) after the power is cut off under its own gravity to limit the movement of the second hook tongue (73). The explosive charge (10), detonating tube (8) and detonator (1) are aligned.

2. The resettable safety system based on a miniature hook-lock system control according to claim 1, characterized in that: The electromagnetic pin puller (3) is equipped with a spring. When the power is off, the spring causes the electromagnetic pin (31) to pop out and lock into the limiting hole to limit the explosion-proof slider (2).

3. The resettable safety system based on a miniature hook-lock system control according to claim 1, characterized in that: The electromagnetic pin-pulling positioning mechanism (4) has a groove for fixing the electromagnetic pin-pulling device (3).

4. The resettable safety system based on a miniature hook-lock system control according to claim 1, characterized in that: The positioning mechanism (6) and the electromagnetic pin puller positioning mechanism (4) are provided with grooves for fixing the explosion-proof slider base (9).

5. The resettable safety system based on a miniature hook-lock system control according to claim 1, characterized in that: One end of the spring (21) is fixed to the explosion-proof slider (2), and the other end of the spring is connected to a protrusion.

6. The resettable safety system based on a miniature hook-lock system control according to claim 5, characterized in that: The explosion-proof slider base (9) has a groove for engaging the protrusion.

7. The resettable safety system based on a miniature hook-lock system control according to claim 1, characterized in that: The explosion-proof slider (2) has a positioning hole on one side for fixing the second hook body (72).

8. The resettable safety system based on a miniature hook-lock system control according to claim 1, characterized in that: The limit pin electromagnetic puller (5) is equipped with a limit pin electromagnetic puller electromagnetic pin (51).

9. The resettable safety system based on a miniature hook-lock system control according to claim 1, characterized in that: The second hook tongue (73) rotates clockwise, and the first hook tongue (74) rotates counterclockwise. The first hook tongue (74) and the second hook tongue (73) are hooked together.

10. The resettable safety system based on a micro hook-lock system control according to claim 1, characterized in that: The electromagnetic pin puller (3) has a cylindrical structure.

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