Whole-key-built-in antitheft lock

Abstract

The invention relates to a whole-key-built-in antitheft lock. When a handle shaft (0208), a central spindle assembly (0201) and a key (0209) are driven by a handle (0206) to rotate to graphical positions, a pair key marble (0213) is pushed to a concave pit of a key by a driver (0302) and a marble spring (0303); and if the key is correct, both the pair key marble and the driver are tangential to the excircle of a central spindle outer sleeve (0211), are separated from a hole of a marble cabin (0301) and cannot lock the central spindle outer sleeve and the marble cabin. When a positioning wheel disc (0304) rotates to a limiting point, the unlocking is completed. When working, the key is arranged in a lock body. A pore between a key insertion hole in the lock body and a marble hole in the central spindle outer sleeve can be effectively cut off by the central spindle assembly, so that no passage for stirring the marbles is provided for technical unlocking personnel and the technical unlocking is effectively prevented. The pair key marble adopts a babysbreath-type marble arrangement mode, so that for the unlocking personnel who adopts a tin foil unlocking method, the difficulty in preparing a tin foil key blank is greatly increased under the condition of no model key.

Description

technical field [0001] The present invention relates to a kind of lockset, exactly a kind of anti-theft lock with all built-in keys. It is classified as E05B in the International Patent Classification. Background technique [0002] At present, with the rapid development of science and technology, various inventions emerge one after another, and high-end locks such as electronic locks and fingerprint locks have flooded into the market, but most of them are relatively expensive. [0003] The traditional ordinary mechanical tumbler lock that is opened with a key is still the most widely used lock at present, but the technical unlocker inserts the key into the hole, uses a steel wire, a master key, or a special tool, uses a tumbler, a vibrating key, and tin foil to unlock the lock. It is easier to open the lock by other methods. Therefore, the security of such locks is average. [0004] Inventing a safe and reliable, cheap anti-theft lock is an urgent need of the general publ...

AI Technical Summary

Problems solved by technology

[0002] At present, with the rapid development of science and technology, various inventions emerge in endlessly, and high-end locks such as electronic locks and fingerprint locks have flooded the market, but most of them are relatively expensive. Due to the cost performance, the popular type is poor

[0003] The traditional mechanical tumbler lock that is opened with a key is still the most widely used lock at present, but the technical unlocker inserts the key into the hole, uses a steel wire, a master key, or a special tool, uses a tumbler, a vibrating key, and tin foil to unlock the lock. It is easier to open the lock by other methods

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