The present invention relates to a manhole cover seated in an opening of a sewage pipe buried under a structure such as a sidewalk or a driveway, which comprises: a frame seated on the inner periphery of the opening; a cover seated on the frame to be opened and closed; a locking device for locking and unlocking the cover with respect to the frame at the front of the cover; a hinge device connected to the frame so that the cover is opened and closed from both sides of a rear surface of the cover; an opening device mounting portion embedded outside a rear surface of the frame and having an upper cover which is opened and closed; a cover opening device mounted on the opening device mounting portion to open and close the cover to which the locking device is fastened; and a safety net which is seated on a safety net seating portion and is formed of a plurality of horizontal and vertical members to prevent an accident from falling into the opening when the cover is opened. The present invention can safely seat the cover on the frame, can open and close the opening of the pipe safely, can easily mount and use the cover opening device while moving to a manhole installation site with a portable chain block, can open and close the cover safely by preventing a collision with the cover opening device in advance when the cover is opened, can easily open and close the cover by connecting an eye bolt to an upper portion of the locking device through a fastening chain to conveniently perform the locking and unlocking of the cover and to easily open and close the cover, can ensure safety when the cover is opened, and can prevent safety accidents in advance.

    본 발명은 인도나 차도 등의 구조물 하측에 매설되는 하수관로의 개구부에 안착되는 맨홀덮개로써, 상기 개구부의 내주연에 안착되는 프레임과, 상기 프레임에 안착되어 개폐되는 덮개와, 상기 덮개의 전방에서 덮개를 프레임에 잠금 및 해제시키는 잠금장치와, 상기 덮개의 후면 양측에서 덮개가 개폐되도록 프레임과 연결되는 힌지장치와, 상기 프레임의 후면 외부에 매립되어 상부커버가 개폐되는 개방장치장착부와, 상기 개방장치장착부에 장착되어 상기 잠금장치가 체결된 덮개를 개폐시키는 덮개개방장치와, 상기 안전망안착부에 안착되며 상기 덮개의 개방시 개구부로 추락하는 사고를 미연에 방지되도록 다수개의 가로 및 세로부재로 형성된 안전망으로 구성된 것을 특징으로 하여, 안전하게 덮개를 프레임에 안착시킬 수 있으며, 관로의 개구부를 안전하게 개폐할 수 있고, 휴대용 체인블럭을 가지고 맨홀 설치장소로 이동하면서 용이하게 덮개개방장치를 장착 사용할 수 있으며, 덮개 개방시 덮개개방장치와 충돌되는 것을 미연에 방지하여 안전하게 덮개를 개폐할 수 있고, 잠금장치 상부에 아이볼트를 체결 체인을 연결하여 덮개의 잠금 및 해제를 간편하게 수행 덮개를 용이하게 개폐시킬 수 있으며, 덮개의 개방시 안전을 확보수 있고 안전사고를 미연에 방지할 수 있는 효과가 있다.


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    Title :

    Multi-function safety manhole cover switchgear with chain block


    Additional title:

    체인블럭으로 개폐하는 다기능 안전맨홀덮개


    Contributors:

    Publication date :

    2021-09-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    E02D FOUNDATIONS , Gründungen / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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