The invention discloses a fireproof manhole cover. The manhole cover comprises a body; a surrounding plate which is fixedly connected to the lower portion of the cover plate in the body, and a cavitywhich is opened downwards is defined by the surrounding plate; a fireproof adhesive tape which is arranged at the joint of the coaming and the body in a hooping manner; two reinforcing plates, whereinthe two ends of the reinforcing plates are welded to the surrounding plate, the upper portions of the reinforcing plates are welded to the cover plate, and the two reinforcing plates divide the cavity into three sub-cavities which are opened downwards; a first fireproof layer which is laid on the inner surface of the sub-chamber; and a fireproof material, wherein the fireproof material is filledin the sub-chamber. The manhole cover can be matched with manhole covers of different specifications to meet the highest A60 fireproof grade requirement, and the manhole cover can be applied to passing and overhauling of rooms with the fireproof grade requirement on ships.

    本发明公开了一种防火型人孔盖,所述人孔盖包括:本体;围板,所述围板固定连接在所述本体中盖板的下部,所述围板圈起一个向下敞开的腔室;防火胶条,所述防火胶条箍设在所述围板与所述本体的连接处上;两个加强板,所述加强板的两端焊接在所述围板上且上部焊接在所述盖板上,两个加强板将所述腔室分割为3个向下敞开的子腔室;第一防火层,所述第一防火层铺设在所述子腔室的内表面上;防火材料,所述防火材料填充所述子腔室。本发明可在匹配不同规格的人孔盖使之能达到最高A60的防火等级要求,可应用在船舶上有防火等级要求房间的通行及检修。


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    Title :

    Fireproof manhole cover


    Additional title:

    一种防火型人孔盖


    Contributors:
    LU XIAOXIANG (author) / ZHOU BUQING (author) / HU KEYI (author) / SHI SHENGJUAN (author)

    Publication date :

    2020-11-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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