Anti-theft door lock

Abstract

The invention belongs to the technical field of anti-theft door locks, and particularly relates to an anti-theft door lock. The anti-theft door lock comprises a lock body, wherein the lock body comprises a shell, a handle and a lock head, four rectangular through holes are formed in the front surface of the shell at equal intervals in the circumferential direction of the lock head, clamping platesare rotationally installed at the rectangular through holes, the ends, close to the lock head, of the clamping plates are made of iron materials, the clamping plates are located in an inner cavity ofthe shell, limiting blocks are fixed at the positions, located at the rectangular through holes, of the inner cavity of the shell, electromagnets are arranged on the side walls of the limiting blocks, reset springs are fixed at the output ends of the electromagnets, and the ends, far away from the corresponding electromagnets, of the reset springs are fixed at the ends, close to the lock head, ofthe adjacent clamping plates. According to the anti-theft door lock, the clamping plates in the four directions are popped up to limit and guide a key on the hand of a user, so that the key on the hand of the user is kept at a correct angle and position, then the user can conveniently align the key, then the door opening efficiency of the user is improved, and convenience is brought to the dailylife of the user.

Description

technical field [0001] The invention belongs to the technical field of anti-theft door locks, in particular to an anti-theft door lock. Background technique [0002] A door lock is a device used to lock the door to prevent others from opening the door. This device may be mechanical or electric, and electric power requires electric energy. 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 are highly secure and relatively cheap; in some high-end places, security agencies will use combination locks and fingerprint locks. Very high and expensive; glass doors are used in many public places, so glass door locks will be more widely used. [0003] There are also some technical solutions about anti-theft door locks in the prior art, such as a Chinese patent with application number 2015103227454, which discloses an anti-theft door lock, including a lock housing, a ma...

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Problems solved by technology

[0003] There are also some technical solutions about anti-theft door locks in the prior art, such as a Chinese patent with application number 2015103227454, which discloses an anti-theft door lock, including a lock housing, a main bolt assembly, an oblique bolt assembly, a lock Tongue dial assembly, deadbolt dial control assembly, oblique bolt single control, oblique tongue extension control assembly, oblique tongue retraction control assembly, deadbolt dial sleeve one-way control I, deadbolt dial sleeve one-way control II, deadbolt dial Sleeve return component I and deadbolt dial sleeve return assembly II, the deadbolt dial co...

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