High-strength civil-air-defence door

Abstract

The invention discloses a high-strength civil-air-defence door. The technical defect problem when a civil-air-defence door is overhauled in the prior art mentioned in the background technology is solved. According to the technical scheme, the high-strength civil-air-defence door comprises a door frame and civil-air-defence door leaves; the civil-air-defence door leaves are rotationally arranged on the door frame, and the rotating angle ranges from 0 DEG C to 90 DEG C; the civil-air-defence door leaves comprise civil-air-defence door leaf frames, front steel door plates arranged on the civil-air-defence door leaf frames, back steel door plates arranged on the civil-air-defence door leaf frames and at least two reinforcing-steel-bar reinforced layers matched with the civil-air-defence door leaf frames and fixedly arranged on the civil-air-defence door leaf frames; the reinforcing-steel-bar reinforced layers are located between the front steel door plates and the back steel door plates and arranged at equal intervals, and are arranged in the shape like the Chinese character 'jing', all cross points are fastened with reinforcing steel bars, and all the two adjacent reinforcing-steel-bar reinforced layers are fastened with reinforcing steel bars at the cross points; concrete is poured between the front steel door plates, the back steel door plates and the reinforcing-steel-bar reinforced layers to form a whole.

Description

technical field [0001] The invention relates to the field of civil defense doors, in particular to high-strength civil defense doors. Background technique [0002] At present, most of the doors of existing civil air defense doors are made of steel plates. Due to some specific existing requirements, the bearing strength of civil air defense doors has certain requirements, but due to the defects of the steel plate itself, such as: the surface is easy to wear, the strength is low, and the service life Short, and poor oxidation resistance, rust will occur for a long time, not only affect the appearance, but also destroy the structural strength, reduce the service life and so on. Contents of the invention [0003] The technical problem to be solved by the present invention is: aiming at the defect of the strength requirement of the prior art civil air defense door mentioned in the background technology. [0004] The design idea of ​​the present invention is to use a steel plat...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the doors of existing civil air defense doors are made of steel plates. Due to some specific existing requirements, the bearing strength of civil air defense doors has certain requirements, but due to the defects of the steel plate itself, such as: the surface is easy to wear, the strength is low, and the service life Short, and poor oxidation resistance, rust will occur for a long time, not only affect the appearance, but also destroy the structural strength, reduce the service life, etc.

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