Anti-theft lock tongue and anti-theft door lock manufactured by utilizing same

Abstract

The invention particularly relates to an anti-theft lock tongue and an anti-theft door lock manufactured by utilizing the same. The anti-theft lock tongue comprises a first lock tongue; the first locktongue is an inclined tongue and is internally provided with a through hole; a length direction of the through hole is parallel to a movement direction of the first lock tongue; the through hole is internally provided with a second lock tongue; the second lock tongue is a square tongue; a locking unit and a poking unit are arranged between the first lock tongue and the second lock tongue; when the locking unit is locked, the second lock tongue is located in the through hole, and when the locking unit is unlocked, the second lock tongue extends out of the through hole; and when a door is closed, the first lock tongue moves under the effect of an external force and drives the locking unit to be unlocked, and when the door is opened, the poking unit drives the locking unit to be locked and drives the first lock tongue to retract. The lock tongue provided by the invention can conveniently realize that door is kept closed, can reliably realize a door locking function at the same time, is simple and ingenious in structure and is convenient and reliable by exerting the advantages of the two lock tongues in a manner of arranging the square tongue in the inclined tongue.

Description

technical field [0001] The invention relates to the technical field of door locks, in particular to an anti-theft lock tongue and an anti-theft door lock made of the lock tongue. Background technique [0002] A door lock is a device used to lock a door to prevent others from opening the door. There are many types of door locks, and the requirements for door locks are different in various occasions. Ordinary families generally use anti-theft door locks, which have high security and are relatively cheap. A very important part in the door lock is the deadbolt. There are many kinds of deadbolts, such as oblique bolts, square tongues, anti-saw deadbolts, double hook deadbolts, etc. The lock cylinder is also divided into single deadbolt locks by the number of deadbolts. Core and multi-point deadbolt lock cylinder. [0003] The most common is the latch bolt. The slope design of the latch bolt and its internal spring parts are completely for the convenience of closing the door. Th...

AI Technical Summary

Problems solved by technology

But this is only by setting two dead bolts, so that both dead bolts can play a role, which increases the cost on the one hand, and on the other hand, does not overcome the complicated nature of operating the square bolt to lock the door, that is, it is still necessary to pass the key to lock the door. to lock the door

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