An Improved Lock Cylinder Mechanism

Abstract

The invention relates to an improved lock cylinder mechanism, which includes an inner lock cylinder body and an outer lock cylinder body connected by a connecting rod, a first spring is arranged between the inner lock cylinder shaft and the inner transmission block, and the opposite of the unlocking dial A second spring is arranged between the inner transmission block and the outer transmission block, and a shaft sleeve is arranged in the outer chamber of the unlocking dial, and the outer dial of the outer transmission block protrudes through the opening on the shaft sleeve and the inner dial of the inner transmission block The convex connection is opposite, and the outer dial wheel of the outer transmission block is convexly connected with a locking groove and a first blind hole in the axial direction. The third spring and a round-headed pin are installed in the first blind hole, and the two sides of the locking groove are symmetrically hinged. As for the locking pieces, the rear ends of the two locking pieces form a pressure inclined surface to offset the round-head pins, and the front ends of the two locking pieces are limited by the openings on the shaft sleeves. Through the above design, the rotation and opening of the unlocking dial can be restricted when one side of the lock cylinder is violently damaged, and has the advantages of compact structure, strong anti-theft performance, wide application range and high reliability.

Description

technical field [0001] The invention relates to an improved lock cylinder mechanism. Background technique [0002] Existing common door lock, under the situation that one side lock core body is destroyed violently, the thief can open the door lock by stirring the unlocking dial, therefore, its anti-theft performance is not very perfect from a certain point of view. Contents of the invention [0003] In order to overcome the problem that the anti-theft performance of ordinary door locks in the prior art is not perfect when they are violently destroyed, the present invention provides an improved design of the lock cylinder mechanism, which has a compact structure design, When encountering a certain degree of violent damage, it can actively limit the rotation and opening of the unlocking dial, which enhances the anti-theft performance and high reliability. [0004] The technical solution adopted by the present invention to solve the technical problem is: comprising an inner ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that the anti-theft performance of ordinary door locks in the prior art is not perfect when they are violently destroyed, the present invention provides an improved design of the lock cylinder mechanism, which has a compact structure design, When encountering a certain degree of violent damage, it can actively limit the rotation and opening of the unlocking dial, which enhances the anti-theft performance and high reliability.

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