Cipher lock

Abstract

A self-set combination lock, including a lock body, a lock cylinder and a combination device. The inner and outer ends of the drive wheel are fixedly connected to the shaft and the inner shell of the drive wheel respectively; the drive wheel is a gear plate meshing with the rack, and the lock tongue is placed in the lock tongue hole in the lock housing below the drive wheel. The lock tongue is in the shape of a round bar. Equidistant and transverse grooves are arranged on the mating surface of the tongue and the missing side disk, and the missing side disk and the groove of the dead bolt are movably matched; the teeth on both sides of the moving wheel are provided with inserts and tongues, inserts and presses respectively. The tongue locks the moving wheel; the insert and the pressing tongue are triangular cones, the bottom of the insert is connected with the lock body through the first return spring, and the bottom of the pressing tongue is connected with the lock body through the second return spring.

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 object of the present invention is to provide a combination lock with a simple structure, and users can use their favorite data as the lock password, thereby improving the security and reli...

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