Spring bolt door closing automatic popping device

Abstract

The invention discloses an automatic pop-up device for closing a deadbolt door, which comprises a bottom plate, a support plate arranged on the bottom plate, a deadbolt bottom plate, a guide rod and a dead bolt fixedly connected to the deadbolt bottom plate, the deadbolt bottom plate is fixedly connected with a pull rod, The connection between the pull rod and the deadbolt bottom plate is provided with a buckle protrusion A, the bottom plate is rotatably connected with a dead bolt buckle plate, the dead bolt buckle plate is provided with a buckle protrusion B, and the triggering device includes a trigger lever, a trigger head and The touch bearing, the structure of the present invention is simple, when the door is closed, the touch bearing on the bolt is pressed by the door frame, and the touch lever presses the vertical side of the lock tongue strike plate to make the strike plate protrusion B release the strike plate protrusion A to make the lock tongue The pop-up keeps the locked state, and the pop-up of the bolt does not require the key to be locked again, ensuring safety; when the door is closed, the door frame presses and touches the bearing, changing the sliding friction between the dead bolt and the door frame to rolling friction, and the friction force is small, avoiding the deadbolt and the door frame. The friction of the door frame, thereby reducing the wear of the deadbolt and the door frame, and reducing the sound of closing the door.

Description

technical field [0001] The invention relates to a lock body, in particular to an automatic pop-up device for closing a deadbolt. Background technique [0002] The lock body is one of the components of the lock. There are many kinds of lock bodies, such as one-way lock body, three-way lock body, and four-way lock body. Generally used on anti-theft doors, it is responsible for the basic anti-theft work of anti-theft doors. The lock cylinder controls the operation of the lock body, and the lock body is responsible for opening and locking the doors and windows, and plays an important role in anti-theft. At present, after the door is opened, there is a deadbolt with an inclined surface in the lock body that keeps popping up, and then relying on the thrust of the person when closing the door, the door frame presses the inclined surface of the deadbolt to make it retract. After the door is closed, the lock The tongue automatically pops out and is inserted into the bolt hole, and t...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an automatic pop-up device for locking the bolt, which solves the problems of the prior art relying on the method of pressing back and popping the dead bolt with an inclined surface, resulting in a loud closing sound and serious wear and tear on the inclined surface of the dead bolt and the door frame

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