security door lock

Abstract

The invention relates to the technical field of safety and anti-theft, and specifically discloses a safety door lock, which includes a mounting panel, on which a bolt assembly is slid through a first limiting member, and a first follower is provided on the mounting panel when rotating through a rotating member , the first follower is flexibly connected to the bolt assembly through the first matching structure; the lock column assembly is slid through the second limiter on the installation panel, and the lock cylinder assembly is provided with a sliding piece through the third limiter. The sliding part is movably connected with the oblique tongue assembly through the second matching structure; a return part is provided on the installation panel, and the free return end of the return part is movably docked with the sliding part; a power assembly is provided on the installation panel, and at least one of the power assembly The dial teeth are matched with the first mating teeth of the lock cylinder assembly and the second mating teeth of the slider respectively. The invention has the characteristics of less motor loss, labor-saving operation, smaller volume, convenient operation and faster unlocking / locking speed.

Description

technical field [0001] The invention relates to the technical field of safety and anti-theft, in particular to a safety door lock. Background technique [0002] Mortise locks are one of the most widely used locks. It is provided on the side of the door leaf and includes a latch or locking cylinder that can be actuated to lock or unlock a locking engagement with a recess formed in the door leaf or frame. Because most of the operating components of the lock are within the door itself, it is difficult for an intruder to operate these operating components, thereby making it difficult for an intruder to gain unauthorized access to the locked room or area. [0003] In an existing electric lock body, the way to open the oblique tongue is to cooperate with an additional gear at the driving end of the motor, and to cooperate with an additional connecting rod on the gear. Prying the bolt to realize the unlocking function, the additional gears and connecting rods, and the way of usin...

AI Technical Summary

Problems solved by technology

Because most of the lock's operating components are within the door itself, it is difficult for an intruder to operate these operating components, thereby making it difficult for an intruder to gain unauthorized access to the locked room or area

[0003] In an existing electric lock body, the way to open the oblique tongue is to cooperate with an additional gear at the driving end of the motor, and to cooperate with an additional connecting rod on the gear. Prying the latch tongue to realize the unlocking function, the additional gears and connecting rods, and the way of using the leverage principle to pry the connecting rod together need to consume about 18% of the force of the motor. It can be seen that this kind of leverage principle is used to pry The way to unlock the oblique tongue is very laborious, and the loss of the motor is also quite large

[0004] The existing unlocking method is to use a key or a motor to drive the lock cylinder to rotate, and a toggle tooth is arranged on the lock cylinder, and the two matching teeth and the oblique tongue of the lock cylinder assembly are toggled by the rotation of the toggle tooth The matching parts of the component, open the lock cylinder and the oblique tongue in turn to realize the unlocking. A complete unlocking process requires three turns of the toggle tooth to complete. The operation mode of the lock is opposite, and the number of turns of the toggle tooth also needs three turns. In order to complete the entire lock, the number of rotations of the lock cylinder is more, and every time the lock cylinder rotates, there will be a noise, which makes the noise larger. shortened, the speed of unlocking and locking is also slower

[0005] Therefore, the existing electric lock body has the problems of large motor loss, laborious operation, large volume, inconvenient operation, high noise and slow unlocking / blocking speed

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