Lock head structure and anti-theft lock

Abstract

The invention discloses a lock head structure and an anti-theft lock. The lock head structure comprises a lock sleeve, a lock cylinder, and fixing pieces; the lock cylinder is rotatably arranged in the lock sleeve and provided with an axial outer end and an axial inner end, wherein the axial outer end is suitable for allowing a key to be inserted in, and the axial inner end is provided with a linkage mechanism capable of transmitting rotation of the key into a lock shell; and the fixing pieces are perpendicular to a cover plate and / or a bottom plate of the lock shell along the rotating axis ofthe lock cylinder so as to fixedly connect the lock sleeve with the lock shell. The fixing pieces are fixedly mounted from the axial inner end, namely the inner side axial end of a door, in the axialdirection of the lock cylinder, thus the fixing pieces can be prevented from being exposed, meanwhile, the fixing pieces are mounted in the axial direction of the lock cylinder, thus the situation that a lock head is twisted from the exterior, and consequently the lock head is broken and ineffective is avoided, and the anti-theft performance of the lock head is further improved accordingly.

Description

technical field [0001] The invention relates to the technical field of anti-theft locks, in particular to a lock head structure and an anti-theft lock. Background technique [0002] The connection method between the lock head and the lock housing in the prior art is usually to insert the lock head into the lock housing, and then pass a screw from the panel on the door body where the dead bolt is installed into the lock housing and fix the lock head. Connection, that is, the use of screws to penetrate the lock housing from the radial direction of the lock head to be fixedly connected with the lock head. Since the screws in the prior art are fixed radially from the lock head to form a cantilever structure, once the screw is subjected to a percussion force or torsion force perpendicular to it, the screw of the cantilever structure is prone to breakage at the place where the force is applied, so the above-mentioned The lock head with a fixed structure is easy to break when the ...

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved in the present invention is to overcome the anti-twisting and poor anti-theft performance of the anti-theft lock head in the prior art, thereby providing a better lock head structure and anti-theft lock for anti-theft performance.

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