Shielding anti-theft lock and key thereof

Abstract

The invention discloses a shielding anti-theft lock and a key thereof. The anti-theft lock comprises a lock body, a lock cylinder and a key. A U-shaped groove is reserved along an axis of the surface of the lock cylinder, a lock cylinder cover is sleeved on the outer surface of the lock cylinder, at least two rows of ball holes are radially arranged on the surface of the lock cylinder cover, each row of ball holes comprises at least one ball hole, balls are arranged in each ball hole, and a limited block, used for limiting a rotary angle of the lock cylinder, is arranged in the lock cylinder cover; the lock cylinder cover can be sleeved in the lock body, one end of the lock body is closed and provided with a inserting hole; the ball holes, the balls and springs, radially arranged on the surface of the lock body, match with the ball holes of the lock cylinder cover. The key comprises a key handle, a key neck and an unlocking portion. Key tartars are arranged on two sides of the unlocking portion and a grooving is arranged in the middle of the unlocking portion. In the anti-theft lock, the lock cylinder is separated from the lock cylinder cover, processing difficulty is reduced, and shielding capacity of the lock cylinder is improved; a separation blade is arranged in the lock cylinder cover so that technically unlocking from the inserting hole to the marble of the lock cylinder cover by needle-typed tools is prevented, and anti-theft lock safety is enhanced.

Description

technical field [0001] The invention relates to a lock, in particular to a shielded anti-theft lock and a key thereof. Background technique [0002] The various existing mechanical anti-theft locks are generally equipped with cylindrical pins in the pin hole of the lock head and the lock cylinder, and then adapted to the key pins corresponding to different length pins, and the corresponding pins are moved up and down according to the height of the key pins. Carry out dislocation and reset in a timely manner, and turn the lock cylinder to achieve the purpose of opening and closing the lock. This type of lock head has the advantages of simple structure, low mutual opening rate, and convenient installation and use, but most of them have the defects of exposed lock cylinder, large keyhole groove, and easy to be stolen by criminals using technical means. [0003] Chinese patent No. is that 02223560.4 discloses a kind of shielded anti-theft lock head and key thereof, such as Fig...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned defects of insufficient security in the shielded anti-theft lock in the prior art, and provide a shielded anti-theft lock and its key. The anti-theft lock can shield the lock core to a greater extent, greatly Enhanced security for anti-theft locks

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