Double-layer civil defense device with convenient opening and closing

Abstract

The invention provides a double-layer civil defense device with convenient opening and closing. The double-layer civil defense device comprises a civil defense door, a heat conduction oil circulationsystem, a civil defense passage, a sand blocking system and a control system. The air defense door includes a primary door and a secondary door, wherein the primary door and the secondary door can becombined. The primary door and the secondary door are arranged in the civil defense passage. The outward side of the secondary door protrudes in an arc shape. The primary door and the secondary door are provided with a honeycomb cavity and a heat conduction oil circuit, and are connected with the heat conduction oil circulation system. The civil defense passage includes a main passage and a secondary passage which are arranged up and down. A connection passage is arranged between the main passage and the secondary passage. The sand blocking system includes a sand storage tank and a sand lifting track. The sand storage tank is arranged above the civil defense passage, and sand and gravel are stored in the sand storage tank. The sand lifting track penetrates through the main passage and thesecondary passage. The double-layer civil defense device with convenient opening and closing is ingenious in design, good in weight loss effect and excellent in defense strength, and can resist high temperature fire attack and convenient and labor-saving in operation, and is suitable for the assembly of civil defense works.

Description

technical field [0001] The invention belongs to the technical field of civil air defense doors, and in particular relates to a double-layer civil air defense door device which is convenient to open and close. Background technique [0002] There are generally civil air defense doors at the entrances and exits of civil air defense passages, whose function is to block external invasion and play the role of wartime protection. General civil air defense doors are made of reinforced concrete or steel, and are of flat straight structure, which can block certain impacts. However, the weight of the traditional civil air defense door structure is relatively large, which brings inconvenience to manual operation; at the same time, when the plane is subjected to impact force, the force intensity and force area are the largest, once the impact force is too large or is impacted many times, then The door body is likely to be damaged; and when attacked by incendiary bombs, flame guns, etc. ...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned technical scheme, there are the following deficiencies: first, this design simply installs an arc-shaped structure on the civil air defense door, which increases the weight of the civil air defense door and brings inconvenience to manual operation; second, it can only slow down and weaken the impact Once there is a fire, the entire door body will be high temperature, which will also affect the people behind the door; third, only the air defense door can block it, and cannot provide more protection for evading personnel

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