Fabricated light protective door and manufacturing method thereof

Abstract

The invention discloses a manufacturing method of a fabricated light protective door. A door body frame component, a frame connecting steel component, a grille, a pre-embedded piece, a skin and a hinge of the protective door are prepared; a protective door frame wall of the protective door is manufactured and mounted at a mounting site in a matched mode; the components are conveyed to the site, the components are assembled at the site, and a protective door metal frame is obtained; the frame connecting steel component and the steel pre-embedded piece are spliced with the door body frame component, and the grille and the steel skin are arranged in the protective door metal frame and spliced on the surface of the protective door metal frame; and cement concrete slurry is injected into a doorbody, the internal space of the protective door metal frame is filled with the cement concrete slurry, and still standing and curing are conducted till the strength reaches the design strength. According to the manufacturing method, the on-site assembly mode is adopted, the size and weight of one single component are further reduced, and better operating performance and economic performance are obtained accordingly; and through the operating mode of concrete on-site slip casting, the integrality of the fabricated protective door is improved, and weights of the conveyed components are furtherreduced.

Description

technical field [0001] The invention relates to an engineering protective door, in particular to an assembled lightweight protective door and a manufacturing method thereof. Background technique [0002] The protective door is a door that can resist various shock waves or heavy objects, and is generally made of steel. Traditional protective doors are bulky and inconvenient for transportation and installation, which brings great difficulties to the construction of civil defense projects and reduces construction efficiency. In facilities such as underground transportation and underground civil defense, protective doors are important protective equipment. The protective door is used to protect the shock wave effect, thereby improving the vitality of the entire underground facility. At present, protective doors have problems such as poor protection ability, bulky door body, high transportation and installation costs, and high maintenance costs, which seriously affect the prote...

AI Technical Summary

Problems solved by technology

If the method of installing traditional protective doors is adopted to renovate old projects, it will not only be greatly restricted by factors such as urban space, terrain, traffic management, and commercial activities, but also the maintenance cost of civil air defense facilities will be high in peacetime, and the reliability of protection in wartime will be reduced.

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