The present invention relates to a device for opening and closing a manhole cover, comprising: a handle held by a user; a hook part in which a loop of the manhole cover is inserted and caught; a support part formed vertical to the ground to support a bottom; and a plurality of frames connecting the handle, the hook part and the support part. The hook part has a frame part consisting of a hook inserted into the loop of the manhole cover, a first locking portion having a groove to which the loop of the manhole cover passing the hook is locked, a second locking portion formed to have an acute angle, to which the loop of the manhole cover passing the first locking portion is locked, a third locking portion for preventing the loop of the manhole cover from passing the second locking portion, and a fourth locking portion formed on a lower portion of the hook part at a constant height and width to maintain horizontal balance of the manhole cover. Therefore, a worker can easily and quickly open or close the manhole cover with low effort.

    본 발명은 맨홀 덮개 개폐 장치에 관한 것으로, 더욱 상세하게는 사용자에 의해 힘이 가해지는 손잡이부; 맨홀 덮개의 고리가 삽입되어 걸리도록 형성된 후크부; 지면과 수평 방향으로 형성되어 바닥을 지지하는 지지부; 및 상기 손잡이부, 상기 후크부 및 상기 지지부를 각각 연결하는 복수개의 프레임을 포함하며, 상기 후크부는, 상기 맨홀 덮개의 고리에 삽입되는 후크; 상기 후크를 지나온 상기 맨홀 덮개의 고리가 걸리도록 형성된 홈을 갖는 제1 걸림턱; 상기 제1 걸림턱을 지나온 상기 맨홀 덮개의 고리가 걸리도록 예각을 갖고 형성된 제2 걸림턱; 상기 맨홀 덮개의 고리가 상기 제2 걸림턱을 지나치는 것을 방지하는 제3 걸림턱; 및 상기 맨홀 덮개의 전후 수평을 유지하기 위해 상기 후크부의 말단 하부에 일정한 높이와 폭을 갖도록 형성된 제4 걸림턱을 포함하는 프레임부를 포함한다.


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    Title :

    DEVICE FOR OPENING AND CLOSING MANHOLE COVER


    Additional title:

    맨홀 덮개 개폐 장치


    Contributors:

    Publication date :

    2018-06-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    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 / E02D FOUNDATIONS , Gründungen



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