Anti-theft lock

Abstract

The invention discloses an anti-theft lock, and belongs to the field of hardware. The anti-theft lock is mainly characterized in that a key comprises a key handle, a connecting portion and a key head; the key head is mounted on the connecting portion; the connecting portion is connected with the key handle; stand columns are arranged around a hole site, for mounting of the key head, of the connecting portion; a slot hole is formed in the key head; sliding cores corresponding to the stand columns are arranged in a lock cylinder; the sliding cores are provided with tapered sliding grooves or protrusions matched with pins in fourth pin holes; pins in third pin holes are matched with teeth on the key head; a sliding rod is arranged in the lock cylinder; a plurality of flanges with different outer diameters are arranged on the sliding rod; pins in sixth pin holes are abutted against the peripheral walls of the flanges; the sliding rod can extend into the slot hole of the key head; springs are arranged at the ends of the sliding cores and at the end of the sliding rod respectively. The anti-theft lock is scientific and reasonable in structure, has multiple-theft-prevention performance and is high in theft prevention performance, so that possibility of technical unlocking is completely eradicated.

Description

technical field [0001] The present invention relates to a metal lock, in particular to a tumbler anti-theft lock. Background technique [0002] There are many types of locks with various structures, among which there are locks with high anti-theft performance. But most of locksets are because its structure is comparatively single, and its antitheft position is few, and thieves can open it in a lot of time, just technical opening described in the field, therefore, burglary takes place from time to time, gives people's property There are always some high-smart businessmen who research a lock with strong anti-theft performance and develop some anti-theft tools or devices. With the development of the Internet today, criminals can always buy some anti-theft locks. tools, so some anti-theft doors, anti-theft locks and other anti-theft facilities can be technically opened easily. Contents of the invention [0003] In view of the deficiencies in the background technology, the te...

AI Technical Summary

Problems solved by technology

But most of locksets are because its structure is comparatively single, and its antitheft position is few, and thieves can open it in a lot of time, just technical opening described in the field, therefore, burglary takes place from time to time, gives people's property There are always some high-smart businessmen who research a lock with strong anti-theft performance and develop some anti-theft tools or devices. With the development of the Internet today, criminals can always buy some anti-theft locks. tools, so it is easy to technically open some anti-theft doors, anti-theft locks and other anti-theft facilities

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