CN-224215969-U - Pin pusher safety structure with fault safety and error-proofing characteristics

Abstract

The utility model relates to a pin pusher safety structure with fault safety and error proofing characteristics, and belongs to the technical field of fuzes. The safety protection mechanism comprises a fault safety pin (1), a supporting lug (2), a pin pushing device (3), a spring (4), a steel ball (5), a safety pin (6) and an explosion-proof piece (7), wherein the characteristics that the safety pin protrudes out of an outer circle after the safety is relieved, and the explosion-proof piece limits the explosion-proof position after the electric safety is relieved accidentally in advance, so that the safety state identification of the mechanism can be realized, the possibility that a fuse is assembled into a disarmed state is avoided, the ballistic safety when the circuit is abnormal after the fuse is disturbed can be ensured, and the safety of a product is improved.

Inventors

• Cong Tianhe
• Xi Baojun
• WANG HAO
• YIN SHAOZHE
• FENG DI
• GONG WEIDI
• You Shuyuan

Assignees

• 辽宁华兴机电有限公司

Dates

Publication Date

20260508

Application Date

20241230

Claims (4)

1. 1. The pin pusher safety structure with the fault safety and error prevention characteristics is characterized by comprising a fault safety pin (1), a supporting lug (2), a pin pusher (3), a spring (4), a steel ball (5), a safety pin (6) and an explosion-proof piece (7); One end of the fail safe pin (1) is inserted into an explosion-proof piece (7) of the safety system, and the other end of the fail safe pin is connected with the pin pushing device (3) through the supporting lugs (2); The other end of the explosion-proof piece (7) at one end of the safety pin (6) is arranged on the excircle of the safety system, an annular groove is formed in the safety pin (6), steel balls (5) are arranged in the groove, and the upper parts of the steel balls (5) are abutted against the fault safety pin (1); The outside of the safety pin (6) is sleeved with a spring (4), and the spring (4) is arranged in the safety system; In the assembled state, the explosion-proof piece is limited by the safety pin (6) so that the explosion-proof piece can only move in a certain range.
2. 2. The ejector safety structure with the fail-safe and error-proof characteristics according to claim 1, wherein after receiving a system unlock instruction, the ejector (3) acts to release the steel ball (5), so as to release the restriction on the safety pin (6), and the release of the safety pin (6) is outwards released to restrict the explosion-proof piece (7).
3. 3. The ejector safety structure with fail-safe and error-proof properties of claim 2, wherein the end of the safety pin (6) is withdrawn and protrudes beyond the outer diameter of the safety system when the ejector (3) is released.
4. 4. A pin pusher safety arrangement with fail-safe and error-proof properties according to claim 3, characterized in that the pin pusher (3) pushes the fail-safe pin (1) into the flameproof member (7) when disturbed after firing, locking the flameproof member (7) in the safety position against further movement.

Description

Pin pusher safety structure with fault safety and error-proofing characteristics Technical Field The utility model belongs to the technical field of fuze, and particularly relates to a pin pusher safety structure with fault safety and error proofing characteristics. Background With the development of weapon systems, higher requirements are put on the safety of fuzes, which require not only that the fuze safety system ensure the service treatment and the safety before reaching the arming delay, but also that the safety system ensure that the detonation sequence is not detonated even if the fuze system is disturbed to give a detonation signal in advance on the flight trajectory before the ammunition normally acts on the target. From traditional fuze transmitting base security systems to fuze target base security systems. Conventional fuzes are fuze-based safety systems that can be disarmed regardless of whether the target (or target area) is present or not and the relative distance between the targets, as long as the firing environment is correct and the ammunition exceeds the safe distance. The fuze target-based security system is based on the fact that unless a certain target (or target zone) signal exists outside the security distance, the security system will not be disarmed, so that when designing the fuze, not only the emission environment needs to be utilized as a disarmed condition, but also controllable insurance capable of being duly disarmed according to target information, sensor information and setting information needs to be added. The separation of the sensing fuse information and the disarming action is realized through the identification and judgment of the information and then the information is transmitted to the controllable insurance of the fuse safety system. Because the controllable insurance is generally identified by a sensor and cannot directly utilize the energy in the environment, a mode of 'sensor + control circuit + driver' is generally adopted, a high-reliability sensor is adopted, and the safety release information is converted into mechanical movement by combining signal processing and an identification circuit through the action of the driver, so that the safety state control of the mechanical isolator is realized. At present, an electric initiating explosive device pin puller and an electromagnetic pin puller are mainly adopted, and the electric initiating explosive device pin puller utilizes high-temperature and high-pressure gas generated by an initiating element and charging of the initiating element to enable a safety pin to retract and do work, so that the pin pulling function is completed. The electromagnetic pin puller utilizes the electromagnetic conversion principle, and generates electromagnetic force to adsorb the safety pin by electrifying, and the safety pin moves upwards against the resistance of the spring, so that the locking of the explosion-proof piece is released, and the aim of releasing the safety is fulfilled. The price of the electric initiating explosive device pin puller is high, so that the cost of the fuse is increased, and the electric initiating explosive device pin puller is not friendly to a low-cost development route. The electromagnetic pin puller has the problem of higher price due to the large volume and the non-self-locking design of the safety pin. Are not generally used for common grenade platforms. Meanwhile, due to the fact that the electric initiating explosive device pin puller and the electromagnetic pin puller are used, the possibility that safety is relieved in advance due to accidental interference exists, and safety of a fuse system is also affected. Disclosure of utility model First, the technical problem to be solved The utility model aims to solve the technical problem of providing a pin pusher safety structure with fault safety and error proofing characteristics, which is used for solving the problems existing in the prior art. (II) technical scheme In order to solve the technical problems, the utility model provides a pin pusher safety structure with the characteristics of fault safety and error prevention, which comprises a fault safety pin 1, a support lug 2, a pin pusher 3, a spring 4, a steel ball 5, a safety pin 6 and an explosion-proof piece 7; One end of the fail safe pin 1 is inserted into an explosion-proof piece 7 of the safety system, and the other end of the fail safe pin is connected with the pin pusher 3 through a supporting lug 2; The other end of the explosion-proof piece 7 at one end of the safety pin 6 is arranged on the excircle of the safety system, an annular groove is formed in the safety pin 6, steel balls 5 are arranged in the groove, and the upper parts of the steel balls 5 are abutted against the fault safety pin 1; the outside of the safety pin 6 is sleeved with a spring 4, and the spring 4 is arranged in the safety system; In the assembled state, the explosion-proof piece is limited by the safety