Assembled civil air defense door and its modular door leaf

Abstract

The invention provides a modular door leaf of a fabricated civil air defense door. The modular door leaf comprises multiple frame steel channels, multiple pieces of I steel and multiple fabricated modules. The frame steel channels are sequentially connected end to end to form a closed ring. A groove formed by each frame steel channel points to the center of the closed ring, and an embedded batten is formed on each frame steel channel, so that the frame steel channels are embedded into sealing adhesive tape on a fabricated civil air defense protection airtight door and a door frame of the airtight door. The multiple pieces of I steel are arranged in the closed ring and connected with the multiple frame steel channels to form lattices. The multiple fabricated modules are used for improving the strength of the modular door leaf and detachably connected into the multiple lattices in a one-to-one correspondence mode. The fabricated civil air defense door comprises the door frame, the door leaf, the sealing adhesive tape, a locking mechanism and hinges. The door leaf is the module door leaf. The door leaf can be produced on an assembly line and portably assembled, welding procedures during manufacturing are reduced, the quality guarantee coefficient is increased, and meanwhile positioning precision is guaranteed by the adoption of modular production.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to an assembled air defense door and a modular door leaf suitable for underground protection projects. Background technique [0002] Underground protective engineering, also called civil air defense fortifications, refers to underground protective buildings built separately to protect personnel and material shelter, civil air defense command, and medical rescue in wartime, as well as basements that can be used for air defense in wartime when combined with ground buildings. The protective equipment door at the entrance and exit of the underground protection project is called the civil air defense door. In practical application, the civil air defense door mainly has the requirements of protection and airtight function. [0003] In order to meet this requirement, the door leaf of the civil air defense door in the prior art is formed by pouring concrete after weaving a steel mesh in a ...

AI Technical Summary

Problems solved by technology

[0004] In order to at least solve the problems in the prior art that the door leaf manufacturing process is complex, cumbersome, and difficult to transport, the present invention provides a modular door leaf of an assembled civil air defense door, which includes: a plurality of frame channel steels, connected head to tail in sequence Form an airtight ring, and the orientation of the groove formed by each frame channel steel is to point to the center of the airtight ring, each of the frame channel steels is formed with embedding strips to embed the seal on the door frame of the assembled air defense door Inside the rubber strip; a plurality of I-beams, arranged in a closed ring and connected with a plurality of the frame channel steel to form a grid; and a plurality of prefabricated modules, used to improve the strength of the modular door leaf, one by one Corresponding detachable connections in multiple grids

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