Inertia safety structure with safety state recognition function

Abstract

The utility model relates to an inertia safety structure with a safety state recognition function, and belongs to the technical field of fuses. Comprising an inertia safety pin (1), an inertia cylinder (2) and an inertia cylinder spring (3), one end of the inertia safety pin (1) is inserted into the arc surface of the explosion-proof piece, a groove is formed in the other end of the inertia safety pin (1), the inertia cylinder (2) is arranged at the groove, the inertia cylinder spring (3) is arranged below the inertia cylinder (2), and the inertia cylinder (2) is supported by the inertia cylinder spring (3) and arranged on the isolation releasing device; the inertia cylinder (2) limits the inertia safety pin (1), the explosion-proof piece is locked through the inertia safety pin (1), the safety and release isolation device can recognize the safety state, meanwhile, the safety release possibility in the service process is avoided, and the safety of products is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fuze, concretely relates to an inertial safety structure with safety state recognition function. BACKGROUND

[0002] The safety and release isolation device is an important component of the fuze, and its function is to fix the initiating explosive in a safe and isolated position before the predetermined condition is reached, so as to ensure the safety of the fuze in the process of production, transportation, storage and other services; during use, the fuze is subjected to the environmental excitation of launching and flight, and after the predetermined condition is reached, the safety and isolation are released step by step, so that the fuze is in a primed state, and the reliable action of the fuze is ensured.

[0003] In the environment of the rotating ammunition fuze platform, a strong recoil force is first provided for the fuze safety and release isolation device during launching and process, and then high-speed rotation is generated. The two environmental forces provide a good release condition for the fuze. Therefore, on the conventional rotating ammunition fuze platform, the recoil and centrifugal forces are used to realize the redundant safety of the fuze.

[0004] The fuze safety and release isolation device is to ensure the safety of the fuze in the stages of production, assembly, transportation, storage, launching and the initial segment of the trajectory after launching. The release reliability and safety are very important, but they are also contradictory. The inertial safety in the fuze safety and release isolation device is usually divided into two forms of non-recoverable safety and recoverable safety. The non-recoverable inertial safety is generally used as the main safety, and the structure is usually in the form of an inertial body plus a large resistance element, and the inertial body or the increased safety pin locks the explosion-proof device. When the value of the resistance element is large, the release is unreliable, and when the value of the resistance element is small, the release is possible under a large impact. The recoverable inertial safety is generally not used as the main safety, and the structure is usually in the form of an inertial body plus a small resistance element. The force can be released during the service process, and the recovery is unreliable after the release. Generally, the two structures are not designed to have state recognition, so it is impossible to directly determine whether the release is reliable, which may affect the overall safety of the fuze. CONTENT OF THE UTILITY MODEL

[0005] (I) Technical problem to be solved

[0006] The technical problem to be solved by the utility model is to provide an inertial safety structure with safety state recognition function to solve the problem that the existing release isolation device cannot directly determine whether the release is reliable.

[0007] (II) Technical scheme

[0008] To solve the above technical problem, the utility model provides an inertial safety structure with safety state recognition function, which comprises: an inertial safety pin 1, an inertial cylinder 2 and an inertial cylinder spring 3.

[0009] The inertia safety pin 1 is inserted into the arc surface of the explosion-proof part at one end, and the other end of the inertia safety pin 1 is provided with a groove, and the groove is provided with an inertia cylinder 2, and an inertia cylinder spring 3 is arranged below the inertia cylinder 2 to support the inertia cylinder 2 on the disarming device.

[0010] The inertia cylinder 2 limits the inertia safety pin 1, and the explosion-proof part is locked by the inertia safety pin 1.

[0011] The groove of the inertia safety pin 1 is circular, and the outer diameter of the inertia cylinder 2 is the same as the inner diameter of the circular groove.

[0012] When the inertia safety pin 1 is released, the convex outer circle of the inertia safety pin 1 makes the outer circle of the safety and disarming device increase when the safety is released, and the release state and the non-release state are distinguished.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the utility model has the beneficial effects that the safety and disarming device can identify the safety state, and the release possibility in the service process is avoided, and the safety of the product is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is an assembly safety state schematic diagram;

[0017] Figure 3 It is a release state schematic diagram. DETAILED DESCRIPTION

[0018] In order to make the purpose, content and advantages of the utility model more clear, the specific implementation manner of the utility model is further described in detail below in combination with the drawings and examples.

[0019] The embodiment provides an inertia safety structure with safety state identification function, which comprises an inertia safety pin 1, an inertia cylinder 2 and an inertia cylinder spring 3.

[0020] The inertia safety pin 1 is inserted into the arc surface of the explosion-proof part at one end, and the other end of the inertia safety pin 1 is provided with a groove, and the groove is provided with an inertia cylinder 2, and an inertia cylinder spring 3 is arranged below the inertia cylinder 2 to support the inertia cylinder 2 on the disarming device.

[0021] The inertia cylinder 2 limits the inertia safety pin 1, and the explosion-proof part is locked by the inertia safety pin 1. The groove of the inertia safety pin 1 is circular, and the outer diameter of the inertia cylinder 2 is the same as the inner diameter of the circular groove.

[0022] In the inertial insurance release, the inertial insurance pin protrudes the outer circle, so that the outer circle of the safety and release isolation device increases when the insurance is released, and the release state and the non-release state can be distinguished.

[0023] In the inertial insurance release, the inertial insurance pin protrudes the outer circle, so that the outer circle of the safety and release isolation device increases when the insurance is released, and the release state and the non-release state can be distinguished.

[0024] The utility model discloses a characteristic of the protruding outer circle of the insurance pin after release and comprehensive utilization of the recoil force and centrifugal force between the launch and aftereffect period to realize the release condition of the inertial insurance mechanism, so that the mechanism can identify the safety state, avoid the release possibility in the service process and effectively improve the safety of the product.

[0025] Meanwhile, the recoil force of launch is ingeniously utilized and combined with the centrifugal force generated between the launch and aftereffect period to release, so that the inertial insurance mechanism has no same release condition in the service process, the safety is improved by using the release environment information, and the first insurance release condition of the safety and release isolation device is realized.

[0026] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled personnel in the technical field, a plurality of improvements and deformations can be made without departing from the technical principle of the utility model, and these improvements and deformations should be regarded as the protection range of the utility model.

Claims

1. An inertial safety structure with a safety status recognition function, characterized in that, Include: Inertia safety pin (1), inertia cylinder (2), inertia cylinder spring (3); The one end of the inertia safety pin (1) is inserted into the arc surface of the explosion-proof part, the other end of the inertia safety pin (1) is provided with a groove, the groove is provided with an inertia cylinder (2), the inertia cylinder spring (3) is below the inertia cylinder (2), and the inertia cylinder (2) is supported by the inertia cylinder spring (3) to set the disarming device. The inertia cylinder (2) limits the inertia safety pin (1), and the inertia safety pin (1) locks the explosion-proof part.

2. The inertial safety structure having a safety state recognition function according to claim 1, characterized by, The groove of the inertia safety pin (1) is circular, and the outer diameter of the inertia cylinder (2) is the same as the inner diameter of the circular groove.

3. The inertial safety structure having a safety state recognition function according to claim 1, characterized by, When the inertia safety pin (1) is disarmed, the inertia safety pin (1) protrudes outward, so that the safety and disarming device increases the circumscribed circle when disarming, and the disarming state and the non-disarming state are distinguished.

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