Anti-pulling and anti-theft lock head

Abstract

The invention relates to an anti-pulling and anti-theft lock head which comprises a lock body and a lock core arranged on the lock body, and is characterized in that an outer convex ring is arranged at the back part of the lock core, a through hole matched with the lock core is arranged on the lock body, the lock core is arranged in the through hole, and a stop block is arranged on the lock body at the end which corresponds to the outer convex ring of the lock core. Compared with the prior art, the anti-pulling and anti-theft lock head has the advantages of preventing a thief from pulling out the lock core from a lock core hole of the lock body through a key port by using a special tool (such as a tool with a barb) and having good anti-theft performance.

Description

Technical field: [0001] The present invention relates to a lock. Background technique: [0002] Such as figure 1 Shown, existing lock end is generally made of lock body 1, lock core 2, and lock core 2 is to rely on the step 8 of lock core 2 front end and the jump spring 10 that is stuck in the jump ring pit 9 of afterbody to lock core 2 is positioned in the lock cylinder hole of the lock body 1. Because jump ring 10 has elasticity and is opening, is easily used by a thief with a barbed tool (such as figure 1 As shown in b) Insert it from the keyhole, shake it, and then forcefully pull out the lock core, so as to open the lock and make the lock lose the anti-theft function. Invention content: [0003] The object of the present invention is to provide a kind of anti-theft anti-theft locking head with good anti-theft performance, which can prevent thieves from using a special tool (such as a tool with a barb) to pull out the lock core from the lock core hole of the lock bo...

AI Technical Summary

Problems solved by technology

Because jump ring 10 has elasticity and is opening, is easily used by a thief with a barbed tool (such as figure 1 As shown in b) Insert it from the keyhole, shake it, and then forcefully pull out the lock core, so as to open the lock and make the lock lose the anti-theft function

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