Protective air-tight door with profiled steel sheet concrete composite structure

The invention provides a protective air-tight door with a profiled steel sheet concrete composite structure, aiming at effectively resisting the bounce, and a door leaf is good in seal effect. The protective air-tight door comprises the door leaf, a doorframe, a hinge, a lock device and a seal devic...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YIN JIPANG, HAO GUIFANG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides a protective air-tight door with a profiled steel sheet concrete composite structure, aiming at effectively resisting the bounce, and a door leaf is good in seal effect. The protective air-tight door comprises the door leaf, a doorframe, a hinge, a lock device and a seal device; the front side and the back side of the door leaf are respectively to be a profiled steel sheet, the two layers of profiled steel sheets are connected with each other by positioning bolts arranged at the wave troughs of the profiled steel sheets, so that a double-layer hollow structure can be fixed, and are connected by self-drilling screws or constructing bolts arranged at the wave troughs of the profiled steel sheets, so that a double-layer profiled steel sheet assembly body can be enhanced, the periphery of the assembly body adopts an edge-covering type steel edge, so that the double-layer steel sheet box type body with a certain strength and rigidity can be formed, the box type body is internally cast with c