Lock body and safety mechanism thereof

Abstract

The invention discloses a lock body and a safety mechanism thereof. The safety mechanism of the lock body comprises an engagement and disengagement mechanism and a trigger spring bolt, wherein the engagement and disengagement mechanism comprises a shifting block capable of being driven by a handle, an engagement and disengagement unit seat capable of driving a main spring bolt to move, and an engagement and disengagement part capable of making the shifting block and the engagement and disengagement unit seat combined and separated; the trigger spring bolt is movably arranged and connected withthe engagement and disengagement part; when the trigger spring bolt moves, the trigger spring bolt can drive the engagement and disengagement part to move to make the shifting block combined with theengagement and disengagement unit seat; and when the trigger spring bolt moves into a lock shell, the shifting block is combined with the engagement and disengagement unit seat. By means of the safety mechanism of the lock body, it is ensured that only when a door is closed, the engagement and disengagement unit seat and the shifting block can be combined, and the main spring bolt can be made toextend out by lifting the handle, so that the main spring bolt is prevented from extending out when the handle is lifted incorrectly in the door closing process, accordingly, the collision between themain spring bolt and a door frame is avoided, and the lock body and the door frame are prevented from being damaged when the handle is lifted incorrectly in the door closing process.

Description

technical field [0001] The invention relates to the technical field of door locks, more specifically, to a lock body and its safety mechanism. Background technique [0002] At present, most of the door locks are to press the handle to open the door, and lift the handle to lock the door. If in the process of closing the door, when the door is not closed, the handle is lifted by mistake, the main dead bolt of the lock body is more likely to collide with the door frame, and the lock body and the door frame are more likely to be damaged. [0003] To sum up, how to design the lock body so as to avoid damage to the lock body and the door frame due to mistakenly lifting the handle during the door closing process is an urgent problem to be solved by those skilled in the art. Contents of the invention [0004] The purpose of the present invention is to provide a safety mechanism for the lock body, so as to avoid damage to the lock body and the door frame due to mistakenly lifting ...

AI Technical Summary

Problems solved by technology

If in the process of closing the door, the door is not closed, the handle is lifted by mistake, the main bolt of the lock body is more likely to collide with the door frame, and it is easier to damage the lock body and the door frame

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