Cave depot doorsill-free protection airtight door

Abstract

The invention relates to a non-threshold protective airtight door of a cavern, which is characterized in that: a sealing beam operating handle and a door locking operating handle are arranged on the large door leaf, the door hinges and ground locks are respectively arranged on both sides of the large door leaf, and the small door leaf It is arranged at the lower part of the large door leaf, and the small door leaf is equipped with a key lock device and a small door lock; the large door leaf is provided with a sealing beam operating handle and a small door hinge, and the left side of the large leaf is provided with a large door hinge. There are door lock operation handles and door locks on both sides of the back, and a sealing beam device is installed at the bottom of the door leaf, and the door frame is pre-buried in the reinforced concrete wall. The present invention is a multi-functional protective airtight door integrating protective airtightness and two built-in locks. It adopts double doors and double locks. The two locks are opened by two different keys respectively, and the door can be opened. confidentiality. It solves the problems of various types of military material cavern doors, large space occupation, large number of doors, cumbersome opening and high cost.

Description

technical field [0001] The invention relates to the field of protective equipment for civil air defense engineering, in particular to a protective airtight door without a threshold for a cavern. Background technique [0002] Under the impetus of a new round of national economic policies, the development of rail transit, subway transportation, and highway transportation is in the ascendant. The extensive equipment of various new offensive conventional weapons in the surrounding countries of our country, key fortified cities, and key defense units must be simultaneously upgraded and upgraded. Improving the control and defense capabilities of protective equipment, the ability to convert from peacetime to wartime, improving the role of resisting natural disasters, and reducing the maintenance cost of protective equipment in the later stage are all directions of scientific research. In the prior art, except the large-scale tunnel protection equipment, research and development is...

AI Technical Summary

Problems solved by technology

[0003] The present invention overcomes the above-mentioned defects, and its purpose is to solve the problem that the material storehouse door occupies a large space, has a large number of doors, is cumbersome to open, and costs high, and the position of the material storehouse door from the inner wall of the cave is small, and the hinge position of the lift and translation door is limited. To solve such problems, provide a non-threshold protective airtight door with simple structure, convenient operation, safety and reliability, and protective effect in wartime.

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