Cipher lock

Abstract

The invention relates to a cipher, comprising lock body, lock pin and cipher device. The cipher device is made up of a setting dynamic wheel and a wany edge disk which is rigidly coupled by a shaft, in the setting dynamic wheel, a wind spring is arranged which is fixed to shaft and setting dynamic wheel inner-casing by inner end and outer end, the setting dynamic wheel is a pair of gear and rack, a round rob shaped bolt is placed in the bolt socket which is arranged in the lock casing under the setting dynamic wheel, and an equidistant transversal groove is made on the wany edge disk fitting surface for movable fit with the bolt; on each side tooth of the setting dynamic wheel, a pressing-bolt is arranged which can lock the bolt. The invention has advantages as simple structure, low cost, freely-set cipher, and convenient use.

Description

technical field [0001] The invention relates to a password lock, that is, a security lock in which a password is set by a user himself. Background technique [0002] At present, the passwords of combination locks are all prefabricated by the manufacturer and used by users, so it is very unsafe, and users cannot change the password at will. Once the password is forgotten, the lock cannot be opened. It has to be destroyed and replaced after the lock, otherwise there is no other way. Moreover, it is also easy for thieves to steal passwords in use or take brutal means such as sawing, chopping, cutting, etc. to destroy the lock and still be able to steal behaviors, such as automobiles and safes being stolen. Therefore, its anti-theft is relatively poor. Contents of the invention [0003] The purpose of the present invention is to provide a combination lock with a simple structure, and users can use their favorite data as the lock combination, thereby improving the security and ...

AI Technical Summary

Problems solved by technology

[0002] At present, the passwords of combination locks are all prefabricated by the manufacturer and used by users, so it is very unsafe, and users cannot change the password at will. Once the password is forgotten, the lock cannot be opened. It has to be destroyed and replaced after the lock, otherwise there is no other way. Moreover, it is easy to be stolen by thieves during use, or the lock can be destroyed by sawing, chopping, cutting, etc. by brutal means, and theft can still occur, such as theft of cars and safes. Therefore, its anti-theft performance is relatively poor.

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