Rail transit cleaning-type ventilation protective air-tight door

Abstract

A rail transit cleaning-type ventilation protective air-tight door is arranged in a ventilating duct of underground railway civil air-defense construction and comprises a steel door leaf, a steel door frame, a steel latch, a steel hinge and a door leaf fixing device, wherein a sealing element is arranged between the steel door leaf and the steel door frame, a ventilating hole is formed in the steel door leaf, the windward side of the steel door leaf is provided with a high-strength steel swing plate valve which corresponds to the ventilating hole, the leeward face of the steel door leaf is provided with a closed valve and a dust filter which correspond to the ventilating hole, and the high-strength steel swing plate valve comprises a steel valve base, a steel valve base hinged support, a steel hinge shaft, a high-strength steel swing plate hinged support, a high-strength steel swing plate and a steel limit base. The rail transit cleaning-type ventilation protective air-tight door is easy to install, solves the problem that an original rail transit cleaning-type ventilation system needs a long axial civil engineering protection section, saves civil engineering cost of a project, and further has the advantages of being easy to operate, flexible to switch and convenient to use and maintain.

Description

technical field [0001] The invention relates to a ventilation protection airtight door which is suitable for the air passage of underground railway civil air defense engineering. Background technique [0002] For the clean ventilation of rail transit underground railway civil air defense projects, the method used in the past is to install a steel ventilation protection airtight door with a rubber hose explosion-proof wave valve near the mouth of the ventilation shaft, and the steel ventilation protection airtight door with a rubber hose explosion-proof wave valve is usually open. In the state, the door leaves stand on both sides and are closed in wartime. Disadvantages of the steel ventilating protective airtight door with rubber hose explosion-proof wave valve. First, the installation requires a long axial civil engineering dimension of the protective section, and the engineering civil engineering cost is high. Only by forming a shock wave plane can the best wave dissipatio...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a rail transit clean ventilated protective airtight door, to solve the problem of clean ventilation in rail transit underground railway civil air defense projects, and the traditional steel ventilated protective airtight door has high civil engineering costs, complex structure, and cumbersome assembly , The problem of low impact strength

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