Fuse head touch switch

Abstract

The fuse head touch switch comprises an inner shell, an outer shell, a first insulating ring and a second insulating ring, the first insulating ring is arranged between the inner shell and the outer shell, the cut surface of the closing part of the outer shell is clamped at the inner step of the first insulating ring, and the upper end of the closing part of the inner shell is clamped at the outer step of the first insulating ring. The first insulating ring plays a role in supporting the inner shell and fixing the outer shell, and can ensure effective insulation between the inner shell and the outer shell which are used as two poles of the touch switch at the same time. The second insulating ring is pressed between the inner shell and the outer shell during assembly, is located above the first insulating ring, and is used for preventing a bullet from impacting the front end cover when the bullet goes out of a muzzle, so that the outer shell is deformed due to excessive instant stress and then accidentally contacts with the inner shell, and the head touch switch is accidentally closed and conducted, and meanwhile, the instant degree of fuze is ensured; the tactical technical index requirement that the whole weapon system needs to shoot without opening the front end cover is met.

Description

Technical Field

[0001] This utility model belongs to the field of fuse structure design technology, specifically relating to a fuse head contact switch. Background Technology

[0002] Due to the discrepancy between the size of the launch tube and the diameter of the projectile, the projectile did not generate sufficient gas pressure to push open the front cover during the launch process. This caused the fuze to accidentally hit the front cover when it exited the muzzle, resulting in local deformation of the fuze head and a reduction in the reliability of the fuze. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] This invention proposes a fuse head contact switch to solve the technical problem of low fuse reliability. It effectively solves the problem of the outer shell and inner shell accidentally closing before the fuse is released, preventing the head contact switch from accidentally closing when the projectile leaves the muzzle and impacting the front cover. At the same time, it ensures the instantaneous firing rate of the fuse.

[0005] (II) Technical Solution

[0006] To solve the above-mentioned technical problems, this utility model proposes a fuse head contact switch, which includes an inner shell, an outer shell, a first insulating ring, and a second insulating ring. The first insulating ring is disposed between the inner shell and the outer shell, and serves to support the inner shell and fix the outer shell, while ensuring effective insulation between the inner shell and the outer shell, which are the two poles of the contact switch. The second insulating ring is pressed between the inner shell and the outer shell during assembly, and is located above the first insulating ring. It is used to prevent the outer shell from deforming and accidentally contacting the inner shell after the projectile impacts the front cover when it leaves the muzzle, while ensuring the instantaneous firing of the fuse.

[0007] Furthermore, the inner shell is made of aluminum sheet by stamping.

[0008] Furthermore, the outer casing is made of aluminum sheet by stamping.

[0009] Furthermore, the first insulating ring is made of plastic.

[0010] Furthermore, the second insulating ring is made of rubber.

[0011] Furthermore, the cut surface of the outer shell's closing portion is engaged with the inner step of the first insulating ring, and the upper end of the inner shell's closing portion is engaged with the outer step of the first insulating ring.

[0012] (III) Beneficial Effects

[0013] This utility model proposes a fuse head contact switch, including an inner shell, an outer shell, a first insulating ring, and a second insulating ring. The first insulating ring is disposed between the inner shell and the outer shell. The cut surface of the outer shell's constricted portion is engaged with the inner step of the first insulating ring, and the upper end of the inner shell's constricted portion is engaged with the outer step of the first insulating ring. The first insulating ring serves to support the inner shell and fix the outer shell, while ensuring effective insulation between the inner shell and the outer shell, which are the two poles of the contact switch. The second insulating ring is pressed between the inner shell and the outer shell during assembly, located above the first insulating ring. It is used to prevent the projectile from impacting the front cover when leaving the muzzle, causing the outer shell to deform due to excessive instantaneous force and accidentally contact the inner shell, resulting in the head contact switch accidentally closing and conducting. At the same time, it ensures the instantaneous firing speed of the fuse and meets the tactical and technical requirements of the overall weapon system for firing without opening the front cover. Attached Figure Description

[0014] Figure 1 This is a front sectional view of the fuse head contact switch of this utility model;

[0015] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0016] Figure 3 for Figure 1 AA sectional view. Detailed Implementation

[0017] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0018] This embodiment proposes a fuse head contact switch, such as Figures 1-3 As shown, it mainly includes an inner shell 1, an outer shell 2, an insulating plastic ring 3, and an insulating rubber ring 4. Both the inner shell 1 and the outer shell 2 are made of stamped aluminum sheet. The insulating plastic ring 3 is positioned between the inner shell 1 and the outer shell 2. The cut surface of the outer shell 2's constricted portion is engaged with the inner step of the insulating plastic ring 3, and the upper end of the inner shell 1's constricted portion is engaged with the outer step of the insulating plastic ring 3. The insulating plastic ring 3 supports the inner shell 1 and fixes the outer shell 2, while also ensuring effective insulation between the inner shell 1 and the outer shell 2, which serve as the two poles of the contact switch. The insulating rubber ring 4 is pressed between the inner shell 1 and the outer shell 2 during assembly, located above the insulating plastic ring 3. It prevents the outer shell 2 from deforming and accidentally contacting the inner shell 1 after impacting the front cover when the projectile leaves the muzzle, while also ensuring the instantaneous firing rate of the fuze.

[0019] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fuze head bump switch, characterized by, The fuse head impact switch comprises an inner shell, an outer shell, a first insulating ring and a second insulating ring. The first insulating ring is arranged between the inner shell and the outer shell, the closed end of the outer shell is clamped at the inner step of the first insulating ring, and the upper end of the closed end of the inner shell is clamped at the outer step of the first insulating ring, so that the first insulating ring supports the inner shell and fixes the outer shell, and effectively insulates the inner shell and the outer shell as two poles of the impact switch; The second insulating ring is pressed between the inner shell and the outer shell during assembly and is arranged above the first insulating ring, so as to prevent the outer shell from being deformed and accidentally contacting the inner shell when the projectile impacts the front end cover when being fired from the muzzle, and to ensure the instantaneity of the fuse.

2. The fuze head impact switch of claim 1 wherein, The inner shell is made of aluminum plate by stamping.

3. The fuze head impact switch of claim 1 wherein, The outer shell is made of aluminum plate by stamping.

4. The fuze head impact switch of claim 1 wherein, The first insulating ring is made of plastic.

5. The fuze head impact switch of claim 1 wherein, The second insulating ring is made of rubber.

6. The fuze head impact switch of claim 1 wherein, The closed end of the outer shell is clamped at the inner step of the first insulating ring, and the upper end of the closed end of the inner shell is clamped at the outer step of the first insulating ring.

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