Key type mechanical coded lock capable of changing codes

Abstract

A key type mechanical coded lock capable of changing codes comprises a lock beam, an unlocking plate, key assemblies, a code changing lock plate, a first elastic piece, a damping elastic piece, an upper cover, a lower cover, a lock beam connecting ring, an elastic piece fixing column and a third elastic piece. The multiple key assemblies are arranged in an array mode, each key assembly comprises a key, a second elastic piece and a lock plate hook, the keys, the second elastic pieces and the lower cover are sequentially connected, and the lock plate hooks are arranged on the keys. One end of the lock beam is connected with the unlocking plate, and the other end of the lock beam is connected with the lock beam connecting ring. The unlocking plate and the code changing lock plate are both arranged on the inner side of the lower cover in a sliding mode, the sliding direction of the unlocking plate is perpendicular to that of the code changing lock plate, the third elastic piece is arranged in the sliding direction of the unlocking plate, the two ends of the third elastic piece are connected with the unlocking plate and the lower cover respectively, and the first elastic piece is arranged in the sliding direction of the code changing lock plate. The lower cover is provided with a shifting assembly used for shifting the code changing lock plate to unlock the keys. Code changing is convenient, the structure is simple, the code digits can be flexibly set, and unlocking is convenient.

Description

technical field [0001] The invention relates to the technical field of mechanical combination locks, in particular to a button-type switchable mechanical combination lock. Background technique [0002] Existing button mechanical combination locks have fixed the number of passwords when leaving the factory. For combination locks that can change codes, they are bulky, costly, and difficult to popularize. Contents of the invention [0003] (1) Purpose of the invention [0004] In order to solve the technical problems existing in the background technology, the present invention proposes a button-type switchable mechanical code lock, which is convenient for code changing, simple in structure, flexible to set the number of code digits, and easy to unlock. [0005] (2) Technical solution [0006] The present invention provides a button-type changeable code mechanical combination lock, comprising a lock beam, an unlocking plate, a key assembly, a code-changing lock plate, a firs...

AI Technical Summary

Problems solved by technology

[0002] The number of digits of the password is fixed when the existing button mechanical combination lock leaves the factory. For the combination lock that can change the code, the volume is large, the cost is high, and it is not easy to popularize.

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