Self-locking door lock

Abstract

A door lock that can be locked automatically comprises a shell, a square tongue unit, an oblique tongue unit, an anti-prying tongue unit, and a linkage unit. The square tongue unit includes a square tongue and a positioning handle. The latch bolt unit includes a latch bolt and an actuating handle. The tamper-resistant tongue unit includes a tamper-evident tongue. The linkage unit includes an unlocking piece, a linkage plate, and a baffle. The linkage plate has a rear arm. During the process of the door lock moving from the open state to the locked state, the latch bolt and the tamper-proof bolt touch the door frame and move backward to make the rear arm pivot upwards, and the latch bolt passes through the door again. When the housing is described, the actuating handle pushes against the rear arm of the linkage plate and pushes the linkage plate and the unlocking plate to move forward so that the baffle is separated from the positioning handle, so that the The square tongue passes through the shell and is automatically locked, which can improve the safety of use.

Description

technical field [0001] The invention relates to a door lock, in particular to an automatic locking door lock. Background technique [0002] The existing door lock usually still needs to be locked manually through key or card induction after the door is closed, which is inconvenient for users who hold items in both hands. When just closing the door and forgetting to lock it, the gangster may take advantage of it, causing loss of property in the house and even endangering personal safety, which is in great need of improvement. Contents of the invention [0003] The object of the present invention is to provide an automatically lockable door lock which can improve the safety of use. [0004] The door lock that can be locked automatically in the present invention is suitable for being arranged on a door panel, and the door panel is rotatably pivoted to the door frame. moving unit. The housing defines an accommodating space around it, and includes a front panel and a rear pa...

AI Technical Summary

Problems solved by technology

[0002] Existing door locks usually need to be locked manually through key or card induction after the door is closed, which is inconvenient for users with items in both hands

If you just close the door and forget to lock it, the criminals may take advantage of it, resulting in the loss of property in the house and even endangering personal safety, which needs to be improved.

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