Anti-theft door lock

Abstract

The invention discloses an anti-theft door lock. The anti-theft door lock comprises a lock body. A lock tongue support is mounted in the lock body. A plurality of lock tongues are fixed to the lock tongue support. A bevel tongue is further arranged on the lock body in a penetrating mode. A stretchable linkage device is arranged between the bevel tongue and the lock tongue support. An electronic unlocking induction controller and at least two electronic unlocking mechanisms are mounted in the lock body. Each electronic unlocking mechanism comprises a gear box, a motor, a worm and a rack. A sliding plate which is capable of sliding in the lock body is further arranged in the lock body. The gear box of at least one electronic unlocking mechanism is fixedly arranged on the sliding plate. The gear box of the other electronic unlocking mechanism is fixed to the lock body. An inside door rotary handle used for emergent mechanical unlocking is further mounted on the lock body. By means of the structure, the anti-theft door lock is better in anti-theft performance and is provided with the multiple electronic unlocking mechanisms and an emergent mechanical unlocking mechanism.

Description

technical field [0001] The invention relates to an anti-theft door lock. Background technique [0002] At present, because the traditional door locks are often provided with the outside turning handle and the corresponding outside lock hole, etc., after the door lock is installed on the door, the above-mentioned parts will be exposed outside the door, so that the intruder can It is very convenient and accurate to find the position of the lock cylinder of the door lock and pry open the anti-theft door lock, which greatly reduces the anti-theft performance of the anti-theft door lock. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides an anti-theft door lock with better anti-theft performance and having multiple sets of electronic unlocking mechanisms and an emergency mechanical unlocking mechanism. [0004] In order to achieve the above object, the present invention provides an anti-theft door lock, which includes...

AI Technical Summary

Problems solved by technology

[0002] At present, because the traditional door locks are often provided with the outside turning handle and the corresponding outside lock hole, etc., after the door lock is installed on the door, the above-mentioned parts will be exposed outside the door, so that the intruder can It is very convenient and accurate to find the position of the lock cylinder of the door lock and pry open the anti-theft door lock, which greatly reduces the anti-theft performance of the anti-theft door lock

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