Crescent burglarproof cylinder door lock assembly

Abstract

The invention provides a crescent burglarproof cylinder door lock assembly. The crescent burglarproof cylinder door lock assembly is installed on a door body and comprises a shell, a key, a lock head, a swing part, a guide plate and a large lock tongue. The lock head, the swing part, the guide plate and the large lock tongue are arranged in the shell. The key is matched with the lock head and comprises a key handle and a key body which are connected mutually. The key body is of a semicircular arc-shaped structure, and two rows of tooth sets are arranged on the inwards-concave side of the key body in the length direction. The lock head comprises an outer lock core body, an inner lock core body arranged in the outer lock core body, a first cylinder assembly and a second cylinder assembly. The first cylinder assembly and the second cylinder assembly penetrate through the inner lock core body, and one ends of the first cylinder assembly and the second cylinder assembly are fixedly arranged on the outer lock core body. The first cylinder assembly is matched with the first tooth set. The second cylinder assembly is matched with the second tooth set. The sectional type lock core bodies and the two rows of cylinder assemblies are adopted, the complexity of the structure of the lock head is improved, and thus the unlocking difficulty is improved.

Description

technical field [0001] The invention relates to the field of locks, in particular to a crescent-shaped anti-theft tumbler door lock assembly. Background technique [0002] At present, the external structure of the existing tumbler door lock is mainly composed of a handle, a deadbolt, a lock head, a handle, a safety button, and a key. Through the joint action of various related structures inside the lock body, outdoor anti-locking and indoor safety Effect. [0003] However, the various home anti-theft door locks currently available on the market are not ideal in terms of safety and anti-theft effects. The structure of using an integrated lock cylinder equipped with a row of marble components is very easy to be damaged by criminals using foreign objects to destroy the lock cylinder and the key. counterfeit. Contents of the invention [0004] In view of the above problems, this application describes an anti-theft tumbler door lock assembly that uses a segmented lock c...

AI Technical Summary

Problems solved by technology

[0003] However, the various home anti-theft door locks currently available on the market are not ideal in terms of safety and anti-theft effects. The structure of using an integrated lock cylinder equipped with a row of marble components is very easy to be damaged by criminals using foreign objects to destroy the lock cylinder and the key. counterfeit

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