A manhole cover opening device of the present invention has a structure that can easily open a manhole cover (50) to a certain height safely from a manhole support frame by mechanical force by hanging the same on an opening groove (52) of the manhole cover (50), thereby capable of increasing work efficiency by shortening work time with fewer people, and preventing accidents in which workers are injured by the manhole cover (50) during work. The manhole cover opening device includes a body, multiple gears, a connecting shaft, and a lifting screw shaft.
본 발명의 맨홀뚜껑 개방장치는 맨홀뚜껑(50)의 개방홈(52)에 걸어서 기계적인 힘으로 맨홀받침틀로부터 안전하게 맨홀뚜껑(50)을 일정 높이로 쉽게 개방시킬 수 있는 구조이기 때문에 적은 인원으로 작업 시간을 단축할 수 있는 등의 작업 효율성을 높일 수 있고, 작업 중 맨홀뚜껑(50)에 의해 작업자가 다치는 안전사고를 미연에 방지할 수 있는 장점이 있다.
Opening apparatus for manhole cover
맨홀뚜껑 개방장치
2023-06-14
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 |