The present invention relates to a manhole cover opening and closing device and a support therefor. The present invention provides the manhole cover opening and closing device using the principle of leverage and the support therefor so that one worker can move after opening and closing the manhole cover, thereby not requiring several workers and capable of preventing physical diseases caused by weight. The manhole cover opening and closing device includes an opening and closing device shank and an opening and closing apparatus.
본 발명은 맨홀뚜껑 개폐기 및 이를 위한 받침대에 관한 것으로, 작업자 1인이 맨홀뚜껑을 개폐한 후 이동할 수 있도록 지렛대 원리를 사용한 맨홀뚜껑 개폐기 및 이를 위한 받침대를 제공하여, 여러명의 작업자가 불필요하고 무게에 의한 신체질환이 예방된다.
MANHOLE COVER LIFTER AND SUPPORT FOR THE SAME
맨홀뚜껑 개폐기 및 이를 위한 받침대
2022-12-29
Patent
Electronic Resource
Korean
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 |