Cipher and ball changeable structure for door lock core

Abstract

The changeable cipher ball structure of door lock core includes lock body, inner core and outer core inside the lock body, several cipher ball-spring combinations inside the lock body and the lock core, and dial shaft and dial sleeve connecting the inner and the outer lock cores. The present invention features the two detachable sealing sheets or caps to close two of the ball hole outlets. The structure of the lock has the balls detached and replaced easily to alter the cipher.

Description

technical field [0001] The invention relates to a door lock structure, in particular to a lock core structure of a pin combination door lock which can be replaced by a user. Background technique [0002] The traditional tumbler combination lock is mainly composed of a lock body, a lock cylinder, a dial shaft, a dial sleeve, and multiple sets of springs, code pins and other components, wherein the lock cylinder, dial shaft, dial sleeve, springs, and code pins are respectively installed in the lock body And cooperate with each other. When the key is inserted into the lock, the function of opening and closing the lock is achieved through the cooperation between the code groove on the key, the code pin and the spring. Wherein the above-mentioned multiple groups of password pins and springs are respectively installed in the pin holes in the lock body, and then each pin hole is sealed with a cylindrical lead small sealing piece, so that each group of spring pins is encapsulated i...

AI Technical Summary

Problems solved by technology

It can be seen that this kind of combination lock is very cumbersome when encapsulating the combination beads, and it is also very inconvenient when changing the combination. It is necessary to drill the sealing pieces one by one with a drill press to replace the combination beads and thereby change the combination. Therefore, this replacement is very difficult and inconvenient. of

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