Fireproof and prying-resistant metal protection component for lock body

By designing the structure of the protective shell and support column in the lock body, the gap between the lock body and the iron sheet of the outer layer of the anti-theft door is filled, and the design of the rotating rod and conical groove plate is used to improve the installation firmness of the protective shell, which solves the problem of poor fire-proof and prying effect when used, and improves the overall anti-prying performance and aesthetics.

CN222649699UActive Publication Date: 2025-03-21SHAANXI XINSHUO TONGCHUANG SPECIAL DOORS & WINDOWS MANUFACTURING CO LTD
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Patent Information

Application Number
CN202421328976.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-12
Publication Date
2025-03-21
Estimated Expiration
2034-06-12

AI Technical Summary

Technical Problem

The existing lock body has poor fire-proof and pry-proof effect when used, and when installing the handle, it is easy to cause the iron sheet of the outer layer of the anti-theft door to be sunken inward, affecting the aesthetics, and is easily pried open directly after being destroyed.

Method used

A metal protection member for fire-proof and anti-plitting of the lock body is designed, and the lock body is fixed inside the door body with a protective shell and a support column, filling the gap between the lock body and the iron sheet of the outer layer of the anti-theft door, increasing the anti-plitting performance, and improving the installation firmness of the protective shell through the design of the rotating rod and the conical groove plate.

Benefits of technology

It effectively reduces the impact of high fire temperature on the lock body, increases the fire-proof and anti-theft effect, avoids the iron sheet of the outer layer of the anti-theft door inwardly, improves the overall aesthetics, and improves the anti-plitting performance and use safety of the lock body.

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Abstract

The utility model relates to the technical field of lock body protection, and discloses a lock body fireproof and prying-resistant metal protection component which comprises a door body, a lock body is arranged in the door body, and a protection mechanism is arranged in the door body. The protection mechanism comprises a protection shell, the lock body is located in the protection shell, the protection shell is clamped into the door body, four supporting columns are fixedly connected to the inner wall of the protection shell, the side faces, close to each other, of the two supporting columns make contact with the upper surface and the bottom face of the lock body correspondingly, and two rotating rods are rotationally connected into the protection shell. And two threaded grooves are formed in the outer surface of each rotating rod. According to the fireproof and prying-resistant metal protection component for the lock body, after an outer-layer iron sheet of an anti-theft door is damaged, the protection shell can provide secondary protection for the lock body, so that the lock body is not prone to being directly pried and damaged, and the effects that the lock body is matched with a protection mechanism, the fireproof and anti-theft effect is effectively improved, and the overall use safety of the lock body is improved are achieved.
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