Concrete protective door and production process thereof

Abstract

The invention relates to a concrete protective door and a production process thereof. The concrete protective door comprises a door frame and a door plate, a hinge device and a door bolt device are connected between the door frame and the door plate, the door bolt device comprises an embedding groove located in the door frame and a lock bolt located in the door plate, and the lock bolt is connected with a driving assembly enabling one end of the lock bolt to slide in the embedding groove; the door plate is internally provided with a guiding sliding channel used for placing the lock bolt, and one end of the guiding sliding channel communicates to one end of the door plate and corresponds to the embedding groove in position; and the end, facing the embedding groove, of the door plate is provided with a placement cavity, the placement cavity communicates with the guiding sliding channel and is internally provided with a buffer mechanism, the buffer mechanism comprises a bearing frame, a buffer part and a pressure-bearing plate, one side of the pressure-bearing plate is connected with the buffer part, and the other side of the pressure-bearing plate abuts against the side wall of the lock bolt. The concrete protective door has the effects that a worker shifts the lock bolt inside through the driving assembly, and the lock bolt is reset easily.

Description

technical field [0001] The invention relates to the technical field of civil air defense equipment, in particular to a concrete protective door and a production process thereof. Background technique [0002] The civil air defense project is an important facility to prevent sudden enemy attacks, effectively cover personnel and materials, and preserve war potential; it is an engineering guarantee to persist in urban combat and long-term support for anti-aggression wars until victory; the protective doors of such project entrances and exits are anti-blast and protective It is an important barrier to ensure the safety of the internal space of the project. [0003] The protective doors of the entrances and exits of civil air defense projects usually adopt reinforced concrete structures, which can resist the shock waves generated by explosions. [0004] The existing protective door comprises a door frame, a door panel, a hinge device and a door bolt device. The door bolt device i...

AI Technical Summary

Problems solved by technology

When the door panel of the protective door is subjected to a large impact load, the position between the door panel and the door frame is mainly limited by the lock tongue and the hinge device, the lock tongue bears a large shear force, and the lock tongue located in the fitting opening is prone to deformation , so that during the opening process of the door bolt device, the deadbolt is stuck at the joint between the door frame and the door panel, the deadbolt is not easy to reset, and the door bolt device cannot be used normally, which leads to the fact that the protective door originally used to protect people and materials will cause damage. Rescue is difficult and even endangers people's lives

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