Anti-theft automatic lock

Abstract

The invention provides an anti-theft automatic lock, and belongs to the technical field of hardware door lock accessories. The problems that an existing anti-theft door cannot be locked automatically when the door is closed, and the anti-theft performance is poor are solved. The anti-theft automatic lock comprises a panel, a latch bolt, a lock body, a main lock tongue, a lock tongue plate, a lock tongue plate locking reset mechanism, a latch bolt lever and a lock tongue plate unlocking driving mechanism, the lock tongue plate unlocking driving mechanism comprises a thumb wheel, a toggle assembly and a handle shift fork, the toggle assembly is meshed with the thumb wheel and the handle shift fork simultaneously, a fixed block is fixedly arranged on the lock tongue plate, a guide mechanism is arranged between the lock tongue plate and the lock body, a limiting link piece is arranged on the lock body, an unlocking reset mechanism which drives the limiting link piece to switch from an insurance locking position to an unlocking position is arranged between the limiting link piece and the lock body, a locking mechanism which drives the limiting link piece to switch from the unlocking position to the insurance locking position is arranged between the limiting link piece and the lock tongue plate, and a touch unlocking mechanism is arranged between the latch bolt plate and the limiting link piece. The anti-theft automatic lock has multiple insurance functions, the anti-theft effect is good, and automatic locking can be achieved.

Description

technical field [0001] The invention belongs to the technical field of hardware door lock accessories, and in particular relates to an anti-theft automatic lock. Background technique [0002] As we all know, the anti-theft door lock is the core component of the anti-theft door, and its quality directly affects the safety performance and performance of the anti-theft door. [0003] Existing anti-theft door locks have some problems in use: one is that the transmission parts connected with the lock cylinder have a complex structure, so it is difficult in the process of production, processing and assembly, the processing and assembly efficiency is low, mechanical failures are prone to occur, and the service life is long. The second is that the main dead bolt cannot be locked after the oblique bolt is locked; the third is that it is inconvenient to use, and the unlocking and locking are cumbersome; the fourth is that the anti-theft performance is not high and does not have multip...

AI Technical Summary

Problems solved by technology

[0003] Existing anti-theft door locks have some problems in use: one is that the transmission parts connected with the lock cylinder have a complex structure, so it is difficult in the process of production, processing and assembly, the processing and assembly efficiency is low, mechanical failures are prone to occur,

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