Sealing protective door for civil air defense engineering

Abstract

The invention provides a sealing protective door for civil air defense engineering. The sealing protective door comprises a door frame and a door leaf hinged to the door frame. The door leaf comprises a reinforcing plate arranged in a square shape. The side wall of the top of the reinforcing plate is fixedly connected with a fixing block, and the side wall of the reinforcing plate is fixedly sleeved with an air bag. The air bag is filled with gas. The side wall of the door leaf is rotationally connected with a rotating shaft. One end of the rotating shaft is fixedly connected with a crank, and the other end of the rotating shaft is fixedly connected with a worm. The side wall of the door leaf is fixedly connected with two symmetrically-arranged fixing plates. The side walls of the fixing plates are rotationally connected with worm wheels, and the worm wheels are engaged with the worm. According to the sealing protective door for civil air defense engineering, in the door closing and locking process, automatic inflation of the air bag is achieved, and therefore the protective door is sealed, using is more convenient, and the effect is better; and meanwhile, the state of the air bag can be monitored, and the sealing reliability of the air bag is guaranteed.

Description

technical field [0001] The present application relates to the field of civil air defense engineering installations, in particular, to a sealed protective door for civil air defense engineering. Background technique [0002] The mouth of the personnel protection project is the weak link of the project, and it is also the key attack part. The underground protection project is responsible for protecting the safety of internal personnel and equipment. Under the strong explosion impact of nuclear weapons or conventional weapons, the harsh vibration environment often causes the death of personnel inside the fortification, the failure of equipment, and the failure of the command system. As the most important protective equipment at the mouth, the protective door plays a decisive role in ensuring the overall safety of the project in wartime, so it has always been the key content of protective engineering research. [0003] The traditional protective door can play a certain role in ...

AI Technical Summary

Problems solved by technology

[0003] The traditional protective door can play a certain role in isolation, but after it is closed, its airtightness is poor, and the toxic gas and huge heat from the outside can easily penetrate from the edge of the protective door, which is harmful to the personnel and equipment inside the civil air defense project. cause damage

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