Miniature safety and ignition control device for ammunition in weak environment

Abstract

The invention discloses a miniature safety and ignition control device for ammunition in a weak environment. The miniature safety and ignition control device comprises a cover plate, an electric detonator, a base, a double-stroke miniature recoil safety device, a remote release safety device, a driving spring, a fault reed, an isolation sliding block, a locking mechanism and a booster tube. The double-stroke miniature recoil safety device comprises a first sliding block, a first steel ball, a first spring assembly, a second sliding block, a second steel ball and a second spring assembly. The first sliding block comprises a first cylinder, and a cylinder unit is arranged above the first cylinder; a first step and a second step are arranged on the side face of the second sliding block. The remote unlocking safety device comprises a pin pushing device and a remote unlocking locking piece, one end of the remote unlocking locking piece is clamped into the isolation sliding block, and the pin pushing device pushes the remote unlocking locking piece to move to release the isolation sliding block; and the isolation slide block moves to the booster hole under the action of the driving spring and is aligned with the electric detonator and the booster tube. The problems that a safety and ignition control assembly for artificial precipitation rocket projectiles and other weak environments is large in size, complex in structure, low in safety and reliability and the like are solved.

Description

Technical Field

[0001] The present invention relates to a safety and ignition control device in the technical field of artificial rainmaking rockets, and in particular to a micro safety and ignition control device for weak environment ammunition of artificial rainmaking rockets. Background Art

[0002] Artificial rainmaking rockets are specialized rockets used for weather modification operations. They are primarily used to spread cloud catalysts to increase rain (snow), prevent hail, dispel fog, and prevent frost. Through technological means, they artificially manipulate the weather to mitigate the impact of meteorological disasters. Due to the frequent occurrence of extreme weather events such as hail and drought, there is a huge annual demand for artificial rainmaking rockets both domestically and internationally. Their safety and reliability are directly linked to operational effectiveness and public safety.

[0003] The safety and ignition control unit (S&C) is a core component for the safety and detonation control of rain-enhancing rockets. It fulfills the dual mission of preventing accidental explosions while ensuring the munitions are deployed reliably at the correct time and location. Environmental excitation during the launch and flight phases of the munition generally requires that the environmental forces used to arm the S&C unit be highly robust, effectively distinguishing between the arming environment and the service handling environment, where accidental arming is undesirable, during non-combat use. For example, the S&C unit used in grenades experiences launch overloads with peak values ​​exceeding 10,000 g and pulse widths exceeding 10,000 milliseconds during launch, while the maximum unexpected shock overload during service handling generally does not exceed 10,000 g / ms. However, the launch and flight environmental excitations of artificial rain-enhancing rockets are weaker than the maximum unexpected shock overloads encountered during service handling, making them a typical weak-environment munition. Conventional S&C units often employ zigzag grooves, clockwork mechanisms, or directly utilize delayed ignition devices, resulting in large footprints and low safety and reliability.

[0004] As weather modification operations demand the safety, reliability, and precision of artificial rainmaking rockets, the requirements for multifunctionality and high integration of safety and ignition control devices are gradually increasing. This has led to a shortage of space for effective use of the spreading device, necessitating further reductions in the size of various functional components. Therefore, addressing the safety, reliability, and miniaturization of safety and ignition control components in weak-environment munitions such as artificial rainmaking rockets is of great significance for the safe and efficient operation of weather modification.

[0005] How to propose a miniature safety and firing control device for use in weak environment ammunition is a technical problem that needs to be solved urgently. Summary of the Invention

[0006] Purpose of the invention: In response to the shortcomings of the existing technology, the present invention proposes a miniature safety and ignition control device for weak environment ammunition. By improving the robustness of the safety and ignition control components of weak environment ammunition, the present invention focuses on solving the problems of the single traditional safety and ignition control functions of existing weak environment ammunition such as artificial rainmaking rockets, and the hidden dangers in safety and reliability, so as to adapt to the development needs of artificial weather modification operations.

[0007] Technical solution: The micro safety and firing control device for weak environment ammunition of the present invention includes a cover plate, an electric detonator, a base, a dual-stroke micro recoil safety device, a remote release safety device, a drive spring, a fault reed, an isolation slider, a locking mechanism and a detonator; the detonator is installed on the base; the cover plate is provided with a sixth hole, a groove for installing the recoil safety device, and a fifth hole for installing the electric detonator.

[0008] The isolation sliding block is provided with an explosion hole, a third slot, a fourth slot and a fifth slot.

[0009] The dual-stroke micro recoil safety device includes a first slider, a first steel ball, a first spring assembly, a second slider, a second steel ball and a second spring assembly; the first slider includes a first cylinder, and a cylindrical unit is provided above the first cylinder; a first step and a second step are provided on the side of the second slider; and the lower part of the second step is a side surface.

[0010] The first steel ball is located between the first cylinder and the first step when there is no overload; the first slider and the second slider drive the first steel ball to move to the cylindrical unit under overload.

[0011] When there is no overload, the second steel ball is located between the side and the third groove; when the second slider moves downward under the overload, the second steel ball moves to above the second step under the overload.

[0012] The first slider is reset under the action of the first spring assembly, and the second slider is reset under the action of the second spring assembly.

[0013] The remote release safety device includes a push-pull device and a remote release locking piece with one end inserted into the isolation slider. The push-pull device pushes the remote release locking piece to move and release the isolation slider; under the action of the driving spring, the isolation slider moves until the explosion hole is aligned with the position of the electric detonator and the explosion tube.

[0014] The locking mechanism comprises a first blocking block, a second blocking block, a first locking spring and a second locking spring; the first locking spring is clamped into the fourth slot, and the second locking spring is clamped into the fifth slot.

[0015] The first spring assembly includes a first spring and a first spring positioning block. One end of the first spring is connected to the first slider, and the other end of the first spring is connected to the first spring positioning block.

[0016] The second spring assembly includes a second spring and a second spring positioning block. One end of the second spring is connected to the second sliding block, and the other end of the second spring is connected to the second spring positioning block.

[0017] The base is provided with mounting slot units for installing a push-pull device, a remote release locking piece, a fault spring, a locking mechanism and a dual-stroke micro-recoil safety device.

[0018] The mounting slot unit includes a first mounting slot for mounting a push pin, a second mounting slot for mounting a remote release locking piece, a third mounting slot for mounting a fault reed, a sixth mounting slot for mounting an isolation slider, and a fourth mounting slot and a fifth mounting slot for mounting a locking mechanism.

[0019] The isolation slider is provided with a second slot for clamping a driving spring, and the driving spring drives the isolation slider to move.

[0020] The fault reed comprises an elastic portion which is clamped into a clamping groove of the isolation slider.

[0021] A hole for accommodating a first spring is provided at the lower end of the first slider, and one end of the first spring is inserted into the hole of the first slider.

[0022] The remote release locking piece includes a locking arm that is clamped into the isolation slider, and the locking arm limits the isolation slider by being clamped into the isolation slider.

[0023] The isolation slider is provided with a first groove, and the locking arm is inserted into the first groove to limit the isolation slider.

[0024] Working Principle: The micro safety and firing control device for weak-environment ammunition of the present invention ensures the safety of artificial rainmaking rockets during service handling and launch through two independent redundant safety mechanisms: a dual-stroke micro recoil safety mechanism and a remote release safety mechanism. A fault spring prevents accidental release of isolation due to safety release activation or component movement timing errors. During service handling, the isolation slider is locked in the isolation position by the dual-stroke micro recoil safety mechanism and the remote release safety mechanism. After the projectile is launched, the inertial safety mechanism moves to release the first safety mechanism under the action of the launch overload. After the projectile reaches the safe separation distance, a remote release control signal is issued, the remote release safety mechanism is activated, releasing the isolation slider and disarming the second safety mechanism. When the predetermined position is reached or a predetermined instruction is received, an ignition signal is issued, ultimately outputting energy.

[0025] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0026] (1) The present invention distinguishes between the launch environment and the service environment by increasing the response time of the recoil safety through the mutual cooperation of the two sliders and the corresponding spring assembly in the dual-stroke micro recoil safety device, thereby realizing reliable identification of weak environmental forces.

[0027] (2) The present invention arranges a dual-stroke miniature recoil safety device, a remote release safety device, a locking mechanism, and an isolation slider in a limited space, and arranges cavities on the base structure that meet the functional requirements of each component, thereby realizing the miniaturization of the safety and ignition control device under the condition of maximum function.

[0028] (3) The present invention is designed with fault insurance to ensure that there will be no unexpected action when a fault occurs in the safety and ignition control components causing an error in the release sequence, thereby having the advantages of high safety and reliability.

[0029] (4) The components of the present invention adopt plate and columnar structures, which are suitable for various advanced processing technologies such as precision stamping and 3D printing, and meet the processing and production requirements of high precision, batch production and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is an internal assembly diagram of the micro safety and firing control device for weak environment ammunition of the present invention;

[0031] Figure 2 This is a schematic structural diagram of one side of the cover plate of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the electric detonator of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the base of the present invention;

[0034] Figure 5 This is a schematic diagram of the assembly structure of the recoil safety device of the present invention;

[0035] Figure 6 This is a schematic structural diagram of the remote release safety device of the present invention;

[0036] Figure 7 This is a schematic diagram of the position of the driving spring of the present invention;

[0037] Figure 8 This is a structural diagram of a faulty reed of the present invention;

[0038] Figure 9 This is a schematic diagram of the state of the reed in the initial state of the present invention;

[0039] Figure 10 This is a schematic diagram of the faulty spring state after the recoil safety is released in the present invention;

[0040] Figure 11 This is a schematic diagram showing the state where the remote release safety device 6 releases the faulty spring before the recoil safety device 5;

[0041] Figure 12 This is a schematic structural diagram of the isolation slider of the present invention;

[0042] Figure 13 This is a schematic diagram of the assembly of the isolation slider in the present invention;

[0043] Figure 14 This is a schematic structural diagram of the first slider in the present invention;

[0044] Figure 15 This is a structural diagram of the first spring and the second spring in the present invention;

[0045] Figure 16 This is a structural diagram of the first spring positioning block and the second spring positioning block in the present invention;

[0046] Figure 17 This is a structural diagram of the first steel ball in the present invention;

[0047] Figure 18 This is a structural diagram of the second slider in the present invention;

[0048] Figure 19 This is a structural diagram of the second steel ball in the present invention;

[0049] Figure 20 This is a schematic diagram of the structure of the squib in the present invention;

[0050] Figure 21 It is a three-dimensional diagram of the present invention;

[0051] Figure 22 This is a schematic structural diagram of the dual-stroke miniature recoil safety device of the present invention;

[0052] Figure 23 Schematic diagram of the structure of the locking mechanism of the present invention;

[0053] Figure 24 This is a safety state diagram of the micro safety and firing control device for weak environment ammunition in the present invention;

[0054] Figure 25 This is a diagram showing the internal structure of the micro safety and firing control device for weak environment ammunition in the present invention. DETAILED DESCRIPTION

[0055] like Figures 1 to 25 As shown, the micro safety and firing control device for weak environment ammunition of the present invention includes a cover plate 1, an electric detonator 2, a base 3, a dual-stroke micro recoil safety device 5, a remote release safety device 6, a drive spring 7, a fault reed 8, an isolation slider 9, a locking mechanism 10 and a detonator 25.

[0056] like Figure 2As shown, the cover plate 1 is a columnar structure. The bottom surface 0101 of the cover plate 1 mates with the top surface of the base 3, while the groove 0102 of the cover plate 1 mates with the protruding portion of the base 3 that mounts the dual-stroke micro-recoil safety device 5. The bottom surface of the groove 0102 of the cover plate 1 contacts the first surface 1101 of the first slider 11 and the surface 1501 of the second slider in the dual-stroke micro-recoil safety device 5, constraining the upward movement of both sliders.

[0057] The sixth hole 0108 cooperates with the second surface 1102 of the first slider 11 and is fixedly connected to the base 3 using the fastening screw 4 through the first hole 0103, the second hole 0104, the third hole 0105 and the fourth hole 0106. The fifth hole 0107 is used to install the electric detonator 2, and the remaining holes are observation holes to facilitate inspection of whether the device has assembly errors after assembly is completed.

[0058] like Figure 3 As shown, the electric detonator 2 is a cylindrical structure, and the cylindrical surface 0201 cooperates with the fifth hole 0107 of the cover plate 1. When reaching the predetermined position or receiving the predetermined instruction, the electric detonator 2 ignites and outputs energy, and the detonator 2 is activated, detonating the detonator tube 25 through the detonation hole 0902 on the isolation slider 9.

[0059] like Figure 5 As shown, the dual-stroke micro recoil safety device 5 is the first safety of the present invention and includes a first slider 11, a first spring assembly, a first steel ball 14, a second slider 15, a second steel ball 16, and a second spring assembly. The first spring assembly includes a first spring 12 and a first spring locating block 13; the second spring assembly includes a second spring 17 and a second spring locating block 18.

[0060] In the safety position, the second steel ball 16, constrained by the second slider 15, blocks the movement of the isolation slider 9. The movement of the second slider 15 is, in turn, constrained by the first slider 11 and the first steel ball 14. When overloaded, the first slider 11 moves downward, overcoming the resistance of the first spring 12. When the first slider 11 reaches a certain position, the constraint on the first steel ball 14 is released, and the first steel ball 14's movement releases the constraint on the second slider 15. Under overload, the second slider 15 moves downward, overcoming the resistance of the second spring 17. When it reaches a certain position, the constraint on the second steel ball 16 is released. The movement of the second steel ball 16 releases the constraint on the isolation slider 9, and the safety is released. The entire safety release process must last for at least 2ms after the overload is released; otherwise, the safety is not fully released. When the overload is removed, the first slider 11 returns to its original position under the force of the first spring 12, and the second slider 15 returns to its original position under the force of the second spring 17. The first steel ball 14 is pushed back to the safety position by the first slider 11, thus constraining the second slider 15.

[0061] like Figure 6As shown, the remote release safety device 6 serves as the second safety, consisting of a remote release locking plate 19 and a push-pull mechanism 20. In this embodiment, the remote release safety device 6 is an electrically actuated, combined remote release mechanism with a locking plate. Once the projectile reaches a safe distance, a remote release control signal is issued, and the push-pull mechanism 20 pushes the locking arm 1901 of the remote release locking plate 19 leftward, releasing the isolation slide 9 and disengaging the second safety.

[0062] like Figure 4 As shown, the base 3 has a cylindrical structure. The first, second, third, and fourth threaded holes 0301, 0306, 0310, and 0311 are connected to the cover plate 1 via fastening screws 4. The first mounting slot 0302 is for the push-pull actuator 20, the second mounting slot 0303 is for the remote release locking piece 19, the third mounting slot 0304 is for the fault spring 8, and the fourth and fifth mounting slots 0306, 0307, ​​and 0308 are for the locking mechanism 10. The sixth mounting slot 0309 is for the isolation slider 9. The sixth hole 0312 is for the first slider 11, the first spring 12, and the first spring positioning block 13. The seventh mounting slot 0313 is for the first steel ball 14, with the bottom of this slot being inclined toward hole 0312. The eighth mounting groove 0314 is used to mount the second slider 15 , the second spring 17 and the second spring positioning block 18 . The ninth mounting groove 0315 is a mounting groove for the second steel ball 16 , and the bottom of the mounting groove 0315 is an inclined surface facing the mounting groove 0314 .

[0063] Drive spring 7, installation position as Figure 7 As shown, after the two safety devices release the lock on the isolation slider 9, the isolation slider 9 moves under the action of the driving spring 7 to a position where the explosion hole 0902 is aligned with the electric detonator 2 and the explosion tube 25.

[0064] like Figure 9 As shown, the fault spring 8 is a special-shaped sheet structure. In the insurance state, the elastic portion 0801 is bent by the remote locking piece 19 to below the lower surface of the isolation slider 9, as shown in FIG. Figure 9 In normal state, the recoil safety device 5 is released, the isolation slider 9 moves to the top of the fault spring 8, and is then blocked by the remote release locking piece 19, as shown in FIG. Figures 10 to 12 As shown, after the remote release safety device 6 is released, the isolation slide 9 moves to the position where the explosion hole 0902 is aligned with the electric detonator 2 and the explosion tube 25 under the action of the driving spring 7. When a fault occurs and the release sequence is wrong, the remote release safety device 6 is released before the recoil safety device 5. The elastic part 0801 of the fault spring 8 bounces up and locks the isolation slide 9, as shown in FIG. Figure 11 As shown, when the recoil safety device 5 is released, the isolating slide 9 is not released.

[0065] like Figure 12 As shown, the isolation slider 9 is a plate-like structure, with hole 0902 serving as the detonation hole. When in the safety state, the isolation slider 9 is locked by the recoil safety device 5 and the remote release safety device 6, causing the detonation hole 0902 to be misaligned with the electric detonator 2 and the detonator tube 25. After both safety devices are released, the isolation slider 9, under the action of the drive spring, moves and is locked by the locking mechanism 10, releasing the isolation state. At this point, the detonation hole 0902 is aligned with the electric detonator 2 and the detonator tube 25, and the system is in the ready state. The first groove 0901 represents the restraining position of the protruding lower end of the locking arm 1901 of the remote release locking piece 19 in the remote release safety device 6. The second groove 0903 serves as the positioning groove for the drive spring 7. The third groove 0904 represents the locking position for the second steel ball 16 in the recoil safety device 5. The fourth and fifth grooves 0905 and 0906 represent the locking positions of the locking mechanism 10.

[0066] like Figure 13 As shown, the locking mechanism 10 consists of a first blocking block 21, a second blocking block 23, a first locking spring 22 and a second locking spring 24; after the safety is released, the isolation slider 9 overcomes the first locking spring 22 and the second locking spring 24 under the push of the driving spring 7 and moves into place, and the first locking spring 22 and the second locking spring 24 respectively bounce into the grooves 0905 and 0906 of the isolation slider 9, locking the isolation slider 9.

[0067] like Figure 14 As shown, the surface 1101 of the first slider 11 contacts the bottom surface of the groove 0102 of the cover plate 1, the cylindrical surface 1102 cooperates with the sixth hole 0108 of the cover plate 1, the first cylindrical surface 1103 of the first cylinder cooperates with the sixth hole 0312 of the base 3, and at the same time contacts the steel ball 14, and the hole 1104 of the first slider 11 cooperates with the first spring 12. When subjected to a downward overload, the first slider 11 overcomes the first spring 12 and slides downward. When it moves downward to the point where the first cylindrical surface 1103 is out of contact with the first steel ball 14, the first steel ball 14 moves toward the first slider 11 due to the overload and the squeezing of the second slider 15. The maximum movement position of the first steel ball 14 is when the first slider 11 moves to a certain distance and the first steel ball 14 contacts the cylindrical surface 1102. At this time, the first steel ball 14 has not completely left the first steel ball mounting groove 0313 on the base 3. After the overload disappears, the first spring 12 pushes the first slider 11 to reset, and the first steel ball 14 is also pushed back to its original position by the first slider 11, re-constraining the second slider 15.

[0068] like Figure 15 As shown, end 1201 of the first spring 12 is inserted into the hole 1104 of the first slider 11; end 1701 of the second spring 17 is inserted into the hole 1505 of the second slider 15, end 1202 of the first spring 12 cooperates with the cylindrical surface of the first spring positioning block 13, and end 1702 of the second spring 17 cooperates with the cylindrical surface of the second spring positioning block 18.

[0069] like Figure 16 As shown, the first spring positioning block 13 is installed to the bottom of the 0312 cavity of the base 3, and the second spring positioning block 18 is installed to the bottom of the mounting groove 0314 of the base 3. The end of the cylindrical surface 1301 cooperates with the end of the first slider 11 and the second slider 15. Due to the fixed spring, the spring is prevented from displacement and lateral deformation during the compression process.

[0070] like Figure 17 As shown, a first steel ball 14 is mounted at the bottom of groove 0313 of base 3. One end of the first steel ball 14 contacts the cylindrical surface of first slider 11, and the other end of the first steel ball 14 contacts step 1504 of second slider 15, restricting the downward movement of second slider 15. When the first slider 11 moves downward to a certain position due to a recoil overload, the restraint on the first steel ball 14 is released. The first steel ball 14, under the pressure of the recoil overload and the second slider 15, moves toward cavity 0312 until the restraint on the second slider 15 is released.

[0071] like Figure 18 As shown, the second slider 15 is mounted within the mounting groove 0314 of the base 3. Surface 1501 of the second slider 15 contacts the groove 0102 of the cover plate 1. A first step 1504 contacts the first steel ball 14, limiting the downward movement of the second slider 15. Surface 1506 contacts the second steel ball 16. When the second slider 15 moves downward until surface 1506 no longer contacts the second steel ball 16, the second steel ball 16 moves to the second step 1502 under the pressure of the recoil overload and the isolation slider 9. The function of the second step 1502 is to provide space for the second steel ball 16 to move after being released from the constraint.

[0072] like Figure 19 The second steel ball 16 is mounted at the bottom of the ninth mounting slot 0315 of the base 3. One end of the second steel ball 16 contacts the surface 1506 of the second slider 15, while the other end engages the groove 0904 of the isolation slider 9, restraining the isolation slider. When the second slider 15, under sustained overload, moves downward to a certain position, the restraint on the second steel ball 16 is released. When the second steel ball 16, under the pressure of the overload and the isolation slider 9, reaches the step 1502 on the second slider 15, it releases the restraint on the isolation slider 9, effectively disengaging the recoil safety.

[0073] like Figure 20 As shown, the detonator tube 25 is a cylindrical structure, and the cylindrical surface 2501 cooperates with the mounting hole 0308 of the detonator tube 25 on the base 3. It is located below the isolation slider 9 and its function is to amplify the detonation energy of the electric detonator 2, thereby detonating the next level of charge.

[0074] The working method of the micro safety and firing control device for weak environment ammunition of the present invention is as follows:

[0075] (1) During service, the isolation mechanism is locked in the isolation position by the recoil safety and remote release safety device 6, and the safety and ignition control device is in an isolated safety state. After the projectile is launched, the first slider 11 overcomes the resistance of the first spring 12 and moves downward after being overloaded. When it moves to the set position, the first steel ball 14 is released from its constraint. The first steel ball 14 moves to release the second slider 15. The second slider 15 overcomes the resistance of the second spring 17 and moves downward after being overloaded. When it moves to a certain position, the second steel ball 16 is released from its constraint. The second steel ball moves to release the constraint on the isolation slider 9, and the first safety is released.

[0076] (2) After the projectile reaches the safe separation distance, a remote release control signal is issued, and the pusher 20 pushes the locking arm 1901 of the remote release locking piece 19 to move and release the lock on the isolation slider 9, thereby releasing the second safety.

[0077] (3) After the two safety devices are released, the isolation slider 9 moves to a position where the explosion hole 0902 is aligned with the electric detonator 2 and the detonator 25 under the action of the driving spring 7, and is then locked by the locking mechanism 10. The safety and ignition control device is in a ready-to-fire state. When it reaches the predetermined position or receives a predetermined instruction, the energy generated by the electric detonator 2 detonates the detonator 25 through the explosion hole 0902 of the isolation slider 9. After the detonator 25 is activated, it outputs greater detonation energy, which is used to detonate the next level of more powerful charges.

[0078] When an error occurs in the release sequence, the remote release safety device 6 is released before the dual-stroke micro-recoil safety device 5, and the fault spring 8 bounces up and locks the isolation slider 9, so that the safety and ignition control devices cannot be released.

Claims

1. A miniature safety and firing control device for weak environment ammunition, characterized by: The invention comprises a cover plate (1), an electric detonator (2), a base (3), a two-stroke micro recoil safety device (5), a remote release safety device (6), a driving spring (7), a fault spring (8), an isolation slider (9), a locking mechanism (10) and a squib (25); the squib (25) is mounted on the base (3); the cover plate (1) is provided with a sixth hole (0108), a groove (0102) for mounting the recoil safety device (5), and a fifth hole (0107) for mounting the electric detonator (2); The isolation slider (9) is provided with an explosion hole (0902), a third groove (0904), a fourth groove (0905) and a fifth groove (0906); The dual-stroke micro recoil safety device (5) comprises a first slider (11), a first steel ball (14), a first spring assembly, a second slider (15), a second steel ball (16) and a second spring assembly; the first slider (11) comprises a first cylinder, and a cylinder unit is provided above the first cylinder; a first step (1504) and a second step (1502) are provided on the side of the second slider (15); a side surface (1506) is provided below the second step (1502); the first steel ball (14) is located between the first cylinder and the second cylinder when there is no overload. The first slider (11) and the second slider (15) drive the first steel ball (14) to move to the cylindrical unit under the action of overload; the second steel ball (16) is located between the side surface (1506) and the third groove (0904) when there is no overload; the second slider (15) moves downward under the action of overload, and the second steel ball (16) moves to above the second step (1502) under the action of overload; the first slider (11) is reset under the action of the first spring assembly, and the second slider (15) is reset under the action of the second spring assembly; The remote release safety device (6) includes a pusher (20) and a remote release locking piece (19) with one end inserted into the isolation slider (9). The pusher (20) pushes the remote release locking piece (19) to move and release the isolation slider (9); the isolation slider (9) moves to the explosion hole (0902) under the action of the driving spring (7) and is aligned with the electric detonator (2) and the detonator tube (25); The locking mechanism (10) comprises a first blocking block (21), a second blocking block (23), a first locking spring (22) and a second locking spring (24); the first locking spring (22) is snapped into the fourth slot (0905), and the second locking spring (24) is snapped into the fifth slot (0906).

2. The micro safety and firing control device for weak environment ammunition according to claim 1, characterized in that: The first spring assembly comprises a first spring (12) and a first spring positioning block (13); one end of the first spring (12) is connected to the first slider (11), and the other end of the first spring is connected to the first spring positioning block (13).

3. The micro safety and firing control device for weak environment ammunition according to claim 1 is characterized in that: The second spring assembly comprises a second spring (17) and a second spring positioning block (18), one end of the second spring (12) is connected to the second slider (15), and the other end of the second spring is connected to the second spring positioning block (18).

4. The micro safety and firing control device for weak environment ammunition according to claim 1, characterized in that: The base (3) is provided with an installation slot unit for installing a push-pull device (20), a remote release locking piece (19), a fault spring (8), a locking mechanism (10) and a double-stroke micro recoil safety device (5).

5. The micro safety and firing control device for weak environment ammunition according to claim 4, characterized in that: The mounting slot unit includes a first mounting slot (0302) for mounting a pusher (20), a second mounting slot (0303) for mounting a remote release locking piece (19), a third mounting slot (0304) for mounting a fault spring (8), a sixth mounting slot (0309) for mounting an isolation slider (9), and a fourth mounting slot (0306) and a fifth mounting slot (0307) for mounting a locking mechanism (10).

6. The micro safety and firing control device for weak environment ammunition according to claim 1, characterized in that: The isolation slider (9) is provided with a second groove (0903) for locking the driving spring (7).

7. The micro safety and firing control device for weak environment ammunition according to claim 1, characterized in that: The fault reed (8) comprises an elastic portion (0801) which is engaged in a slot of the isolation slider (9).

8. The micro safety and firing control device for weak environment ammunition according to claim 1, characterized in that: A hole for accommodating a first spring (12) is provided at the lower end of the first sliding block (11).

9. The micro safety and firing control device for weak environment ammunition according to claim 1, characterized in that: The remote release locking piece (19) comprises a locking arm (1901) which is engaged in the isolation slider (9).

10. The micro safety and firing control device for weak environment ammunition according to claim 9, characterized in that: The isolation slider (9) is provided with a first groove (0901), and the locking arm (1901) is inserted into the first groove (0901).

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