Anti-theft door lock with trigger type locking function

Abstract

The invention relates to an anti-theft door lock with a trigger type locking function. The anti-theft door lock comprises a lock body. An inclined tongue assembly and an inclined tongue moving mechanism are arranged in the lock body. The inclined tongue assembly comprises an inclined tongue and an inclined tongue transmission portion, and the inclined tongue moving mechanism can move the inclinedtongue transmission portion to enable the inclined tongue to stretch out for locking or shrink inwards for unlocking. An inclined tongue locking mechanism is further arranged in the lock body, and comprises a locking part, a locking trigger part, a trigger portion spring and a locking relief part, the trigger part spring is sued for enabling the locking trigger part to keep a stretching-out trend,one end of the locking part is rotationally arranged, the other end of the locking part is a free end, a transmission abutting block is further arranged at the rotatable end of the locking part, oneend of the locking relief part is connected with the inclined tongue moving mechanism, and an abutting convex portion and an abutting concave portion capable of cooperating with the transmission abutting block in a switched manner are arranged at the other end of the locking relief part. Automatic locking can be carried out immediately after a door is closed, thus, when people go out, it is not needed to use a key for locking, and the anti-theft door lock has the beneficial effects of being convenient to use, safe, reliable and the like.

Description

technical field [0001] The invention relates to the technical field of locks, in particular to an anti-theft door lock with a trigger-type locking and locking function. Background technique [0002] In the prior art, the anti-theft door lock is generally provided with a lock bolt and a latch bolt in the lock body. It is mainly the lock bolt that plays a locking role on the anti-theft door, and the lock bolt can stretch out to the outside of the lock body and be inserted into the lock bolt hole in the door frame to realize the locking of the anti-theft door. The latch bolt is normally in the state of protruding out of the lock body. During the door closing process, the latch bolt is first pushed into the lock body by the door frame. After the door is closed in place, the latch bolt is pushed by the push spring in the latch bolt assembly. It will still protrude to the outside of the lock body and be inserted into the bolt hole in the door frame. Some anti-theft doors are loc...

AI Technical Summary

Problems solved by technology

[0004] At present, there are some electronic trigger locks on the market. Although it solves the cumbersome manual locking, there are certain safety risks. The electronic trigger mechanism is relatively affected by the outside world, and its work is not reliable.

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