Identification sequence change mechanical combination lock

Abstract

The present invention provides a mechanical coded lock with marking sequence transformation, comprising: a lock cylinder, a lock case set outside the lock cylinder, a number of bolts are arranged on one side of the lock cylinder, and a tapered push platform is fixedly connected to the lock cylinder; , the password chip is provided with a radial password hole; the lock housing, the lock housing is provided with a limit hole, the password chip is installed in the lock housing, the identification tail protrudes outside the limit hole, and the identification tail swings within the range limited by the limit hole; There is a window on the lock housing corresponding to a certain tongue position, and a tongue code that changes with the rotation of the lock tongue is provided in the window; an expansion box fixedly connected with the lock housing, the expansion box accommodates the tapered push platform , the card pin is installed in the expansion box, and the card pin is set under the conical push table; when there is a code hole on each code chip at the same position as the lock tongue, the lock cylinder goes down, and the tapered push table forces the card pin tip Retraction, the combination lock completes the locking process once, the lock cylinder rotates once, the combination lock automatically changes the password, the combination chip has many styles, the combination of passwords is large, and the encryption is very strong.

Description

technical field [0001] The invention belongs to a mechanical coded lock, in particular to a mechanical coded lock which periodically changes codes. Background technique [0002] Present coded locks are widely used and greatly improve security. Electronic locks in existing coded locks are expensive and cannot be widely used in large quantities. In order to adapt to the market demand, mechanical combination locks are the research direction of many technicians. [0003] my country's patent 201520486451.0, application date: July 3, 2015, publication date: 2016, March 23, provides a multi-digit multi-group password sequentially changing padlocks group by group, including a housing, the housing is provided with a lock Tongue column, lock column, pin and U-shaped lock beam; the top of the deadbolt column is provided with a pin drive block, and the pin is installed in the pin drive block; the end of the pin is provided with Return spring; the middle part of the deadbolt column is pr...

AI Technical Summary

Problems solved by technology

The disadvantages of this scheme are: the structure of the locking mechanism is complicated, the processing is difficult, and the assembly is inconvenient, and each first number wheel of this scheme corresponds to a set of unlock codes, and the first number wheel is considerable and easy to be obtained , the confidentiality of the scheme is not high

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