A self-locking double-layer air defense door device

Abstract

The invention provides a self-locking double-layer civil air defense door device, which includes a civil air defense door, a heat transfer oil circulation system, a civil air defense passage, a sand blocking system and a control system; the civil air defense door includes a combinable main door and a secondary door, and The connection between the main door and the auxiliary door is provided with a self-locking system; the main door and the auxiliary door are arranged in the air defense passage; the outward side of the auxiliary door protrudes in an arc shape; the main door and the auxiliary door A honeycomb cavity and a heat-conducting oil circuit are arranged inside, and are connected to the heat-conducting oil circulation system; the air defense channel includes a main channel and a secondary channel arranged up and down; a communication channel is provided between the main channel and the secondary channel; the The sand retaining system includes a sand storage tank and a sand lifting track; the sand storage tank is arranged above the civil air defense passage, and sand and gravel are stored inside; the sand lifting track runs through the main passage and the auxiliary passage. The structure design of the invention is ingenious, can fully reduce its own weight, can also ensure its own strength, and enhance heat dissipation through heat conduction, and is suitable for various civil air defense passages.

Description

technical field [0001] The invention belongs to the technical field of civil air defense doors, and in particular relates to a self-locking double-layer civil air defense door device. 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. or general fire, the high...

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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