Door lock

Abstract

The invention relates to a door lock. The door lock comprises a lock cover assembly and a linkage mechanism, wherein the lock cover assembly is arranged on a door structure; the linkage mechanism is arranged inside the door structure; the lock cover assembly comprises a lock seat, as well as a lock cover plate and a lock box which are matched with the lock seat; the lock seat is fixed on one side surface of the door structure; the lock cover plate is arranged on the lock seat and can slide on the lock seat; a sliding lock used for locking the lock cover plate to slide is arranged in an area between the lock seat and the lock cover plate; the lock box is arranged inside the door structure and fixedly connected with the surface of the side, far away from the lock cover plate, of the lock seat; through holes are formed in all of the lock seat, the lock box and the door structure, and arranged in an aligned manner; and the lock cover plate can slide until the through hole in the lock seat is completely blocked or completely exposed. The door lock provided by the invention is simple in structure, firm and reliable, simple to operate, and applicable to high-strength door plates and door plate sealing; by adoption of an adjustable mounting mode, the door lock is convenient and rapid to mount, overhaul and replace; and the lock cover assembly and the linkage mechanism are adopted for double locking, thereby greatly improving the safety performance of the door lock.

Description

technical field [0001] The invention relates to the technical field of mechanical structures, in particular to a door lock. Background technique [0002] In order to ensure the safety of various industrial cabinets such as file cabinets, power distribution cabinets, and communication cabinets, it is generally necessary to install door locks on the cabinet doors. In this way, the cabinet door and the cabinet body are locked by the door lock to improve the safety of the cabinet. There are various forms of locks, including mechanical locks, electronic locks and mechanical and electronic composite locks, among which mechanical locks are the most commonly used. In the prior art mechanical door locks for cabinets, most of the door locks can only achieve one-point locking, and these cabinets are usually large in size, and one-point locking is difficult to ensure the safety of the cabinet. Contents of the invention [0003] The technical problem to be solved by the present inven...

AI Technical Summary

Problems solved by technology

In the existing mechanical door locks for cabinets, most of the door locks can only achieve one-point locking, and these cabinets are usually large in size, and one-point locking is difficult to ensure the safety of the cabinet

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