Civil air defense sealing door with airbags

Abstract

The invention provides a civil air defense sealing door. The protective sealing door comprises a door body (1) and a door frame (2), the door body (1) is provided with sealing grooves (3), openings ofthe sealing grooves (3) face the door frame (2), the door frame (2) is provided with stirrups (4), the stirrups (4) are arranged in the mode of corresponding to the sealing grooves (3) and extend outtowards the door body (1), sealing airbags (5) are arranged in the sealing grooves (3) and made of elastic materials and have a natural state, an inflating state and an expansion state, the sealing airbags (5) and the stirrups (4) are arranged at intervals in the natural state, the sealing airbags (5) are in sealing contact with the stirrups (4) when in the inflating state, and the sealing airbags (5) are stretched and deformed in the expansion state and attached to the two sides of the stirrups (4). According to the protective sealing door, the effective sealing protective performance can beprovided, and the protective sealing door is effectively prevented from leakage.

Description

technical field [0001] The invention relates to the technical field of civil air protection engineering, in particular to a protective airtight door. Background technique [0002] Due to the entry and exit of personnel and equipment, as well as the needs of ventilation, water supply and drainage, and smoke exhaust, civil air defense fortifications in wartime have a small number of orifices that communicate with the outside. Explosion shock waves, poisons, biological warfare agents, and radioactive particles are all likely to enter the project through these openings to kill personnel and damage oral engineering structures and equipment. In order to avoid leakage incidents, protective airtight doors are generally installed at these openings. The size of the protective airtight door can be determined according to the demand. The conventional large protective airtight door can be divided into two. The total width of the protective airtight door can reach 7m. The height of the p...

AI Technical Summary

Problems solved by technology

[0003] The protective airtight door is the biggest leakage part of the civil air defense fortification. If the protective airtight door is not sealed properly, the air will enter / leak into the civil air defense fortification from the sealed part, which will pose a threat to the safety of personnel and equipment in the fortification.

[0004] However, the current effective sealing form of super large protective airtight doors is not ideal, and the traditional extrusion sealing form of small doors is not suitable for super large protective airtight doors, which is prone to leakage problems

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