Anti-theft door lock

Abstract

The invention relates to the field of locks, in particular to an anti-theft door lock. The door lock comprises a main door lock body; first sliding grooves are formed in the two sides of the front surface of the main door lock body; a second sliding groove is formed in the middle of the front surface of the main door lock body and is of an arc-shaped structure; a handle is rotationally connected in the position, at the circle center of the second sliding groove, of the main door lock body; third sliding grooves are formed in the upper and lower ends of the handle and communicate with the outside of the side, away from the main door lock body, of the handle; and second screw holes are formed in the middle of the side, away from the main door lock body, of the handle. According to the door lock, a first protection plate and a second protection plate are arranged on the main door lock body, a fixing mechanism is arranged on the first protection plate, an inserting mechanism is arranged onthe second protection plate, and the first protection plate and the second protection plate are connected together through the fixing mechanism and the inserting mechanism in the using process to seal the main door lock body, so that a lock hole of the main door lock body is isolated from the outside, and the situation that moisture in the air enters the main door lock body to corrode and damagemechanical elements in the main door lock body is avoided.

Description

technical field [0001] The invention relates to the field of locks, in particular to an anti-theft door lock. Background technique [0002] The lock is one of the important components on the anti-theft door, which is used to lock the anti-theft door to prevent thieves from entering the room to steal. [0003] When the current anti-theft door locks are in use, because most of the anti-theft door locks are not equipped with any protective structure, when encountering rainy and snowy days, moist air enters the interior of the lock through the said door, which is easy to corrode some of the internal mechanical components. If the surrounding air is relatively dry, static electricity is likely to be generated when the locked handle is in contact with the user's hand, which makes the user feel uncomfortable, and when the locked handle is pulled too many times, it is easy to cause the handle to shake and affect the use of the staff. Contents of the invention [0004] Aiming at th...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems in the prior art, the present invention provides an anti-theft door lock, which solves the problem that most of the anti-theft door locks are not provided with any protective structure when the anti-theft door locks currently used are in use. , Moist air enters the inside of the lock through the lock, which is easy to corrode some mechanical components inside the lock. If the surrounding air is relatively dry, static electricity is likely to be generated when the handle of the lock touches the user's hand, which makes the user feel uncomfortable and pulls the lock. When the handle is locked too many times, it is easy to cause the handle to shake and affect the use of the staff

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