Combined anti-theft mechanical lock and the key to open it

Abstract

The invention discloses a combined anti-theft mechanical lock and a key for opening the combined anti-theft mechanical lock. The problem that in the prior art, an existing mechanical lock is not high in safety performance is solved. The combined anti-theft mechanical lock comprises a lock shell, a mechanical lock device arranged in the lock shell and a positioning driving device used for driving the mechanical lock device; the mechanical lock device comprises a ratchet mechanism; one face of the ratchet mechanism is provided with at least one protruding column; the positioning driving device and the protruding column are located on opposite sides of the ratchet mechanism; a ring disc and a protruding disc matched with a blind hole are sequentially arranged in the position, on the protruding column side, of the lock shell; and a groove matched with the protruding column is formed in the ring disc. By means of the above scheme, the aim of being high in safety performance is achieved, and the very high practical value and popularization value are achieved.

Description

technical field [0001] The invention relates to the technical field of lock manufacturing, in particular to a combined anti-theft mechanical lock and a key for opening it. Background technique [0002] Lock is a tool widely used in anti-theft and security. Historically, it took a hundred years for one type of lock to be replaced by another more advanced lock. In order to improve the anti-theft function and security, in the lock industry, people work hard. Created electronic locks, smart locks, combination locks and more. [0003] The defects of existing mechanical locks are as follows: first, lawbreakers can open the combination lock by feeling, hearing, etc. through the contact collision between the groove and the convex post in the combination lock, so that the security performance of the existing mechanical combination lock is not high, It is easy to be opened by criminals; secondly, a series of numbers and symbols used when the existing mechanical combination locks are ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a combined anti-theft mechanical lock and a key to open it, so as to solve the problem of low safety performance of existing mechanical locks

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