A mechanical lock

By introducing a movable key structure into mechanical locks, the security risks caused by manufacturing errors in existing mechanical locks are solved, the security of the lock cylinder is improved and the difficulty of cracking is reduced, and the manufacturing cost is reduced.

CN122407009APending Publication Date: 2026-07-17XIAMEN TIANGONG INNOVATION TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAMEN TIANGONG INNOVATION TECH DEV CO LTD
Filing Date
2025-01-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing mechanical locks have gaps between the inner and outer pins and the pin holes due to manufacturing errors, posing a security risk. Furthermore, the keys lack mutual protection and linkage, making them easy to detect and crack.

Method used

Design a mechanical lock with a movable key structure, including an inner key body, an outer key body, and inner and outer sub-bodies. The lock cylinder can only rotate after the key matches the inner key body and the inner sub-bodies, which increases security and the difficulty of cracking.

Benefits of technology

The movable key structure enhances the security of the lock cylinder, reduces the possibility of unlocking tools probing the inner core under gaps, increases the difficulty and security of unlocking, and reduces manufacturing costs.

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    Figure CN122407009A_ABST
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Abstract

The present application provides a kind of mechanical lock, wherein the lock cylinder is further provided with at least one set of movable seat key; the movable seat key is arranged in the radial direction of the lock cylinder, and the movable seat key comprises an inner seat body, an outer seat body and at least two inner and outer sub-bodies; the movable seat key is decoded by pairing with a key, and the sub-key is in the movable seat; the present application correlates and combines the keys, limits the space and time of detecting the key, and greatly increases the difficulty of cracking.
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