A square tongue anti-theft door lock capable of axial locking

Abstract

The invention discloses a square tongue anti-theft door lock capable of axial locking, comprising a panel, a shell, a buckle box, a key, a square tongue, a square tongue drag plate, a deadbolt hook, a twisting device, a stroke and an axial limit device and safety locking device. There is a square tongue strong magnet inside the square tongue; the lock box magnet is built in the lock box; two symmetrically arranged deadbolt hooks are installed on the square tongue supporting plate, and each deadbolt hook is equipped with a knuckle tongue; the stroke and The axial limit device includes a travel limit groove, a limit block and a limit torsion spring, and the safety lock device includes a slider fixedly connected with the square tongue drag plate and a toggle block arranged at the bottom of the slider; the other end of the slider Connect with the lock cylinder. After adopting the above structure, the radial movement stroke of the other tongue can be limited, and the square tongue can be compressed and locked in the axial direction, the axial locking ability is stronger, the anti-theft effect is better, and it can be locked outdoors without a key, which is more convenient to use.

Description

technical field [0001] The invention relates to a hardware lock, in particular to a square tongue anti-theft door lock capable of axial locking. Background technique [0002] A door lock is a device installed on the door to lock the door to prevent others from opening it easily. There are many types of door locks, including mechanical and electronic. According to different usage occasions and usage requirements, the types are different One, but the vast majority of door locks should have a common feature, that is, anti-theft, so people make a big fuss about door locks on anti-theft, and various anti-theft door locks emerge in endlessly, and among many anti-theft door locks, The most common type of anti-theft door lock is mechanical. [0003] Mechanical anti-theft door locks are mainly manual unlocking methods. They are reasonably priced, have high mechanical strength, and are more convenient to install and maintain. Therefore, they have a large market share. There is a loc...

AI Technical Summary

Problems solved by technology

[0005] 1. The radial movement stroke of the lock tongue is controlled by the lock tongue spring and the twisting device. The lock tongue is easy to shrink into the lock housing, causing the lock tongue to be stuck.

[0006] 2. The lock tongue cannot be limited and locked in the axial direction, and some thieves exert an axial force on the door lock when they pry the door. If the anti-theft performance of the anti-theft door is greatly reduced

[0007] 3. When anti-locking outdoors, you need to use a key to lock it, which is inconvenient to use

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