The invention discloses a manhole cover with a sight glass observation hole, which comprises a seat board, a pipe body and a protective cover, a sight hole is opened in the center of the seat board, the pipe body is erected on the upper end of the sight hole, a bracket is arranged on the outer side of the pipe body at the upper end of the pipe body, an upper seat board is welded to an opening in the upper end of the pipe body, and a pressing plate is installed at the upper end of the upper seat board. The center of the upper seat board and the pressing plate are provided with holes, a sight glass is tightly pressed and installed between the upper seat board and the pressing plate, and a protective cover is hinged to one end of the bracket. In this way, after opening the protective cover rapidly, the water level depth can be directly seen through the sight glass, and the observation and measurement can be completed without tedious opening operation. The manhole cover uses a multi-layerstructure to improve safety and good sealing performance.

    本发明公开了一种带视镜观察孔的人孔盖,包括座板、管体和保护罩,所述座板中央开设有视孔,所述管体竖立在所述视孔上端,所述管体上端管体外侧设有托架,所述管体上端管口上焊接人上座板,所述上座板上端安装压板,所述上座板与所述压板中央均开孔设置且所述上座板与所述压板之间压紧安装有视镜,所述托架一端铰接有保护罩。通过上述方式,本发明能够快速打开保护罩后利用视镜直视水位深度,无需繁琐的开盖操作即可完成观测测量,人孔盖采用多层结构提升安全性且密封性能好。


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    Title :

    Manhole cover with sight glass observation hole


    Additional title:

    带视镜观察孔的人孔盖


    Contributors:
    ZHANG BIN (author) / FENG LIANG (author) / GU LIJUN (author) / WANG YUCHAO (author)

    Publication date :

    2020-12-25


    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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