The present invention relates to a chain gear type manhole opening and closing device. More specifically, a purpose of the present invention is to provide a chain gear type manhole opening and closing device capable of being substantially coupled to a manhole cover through a manhole hanger, a wedge member or a hand tool hanger while winding a chain with a reducer, thereby simply lifting all types (weight, sizes, structures) of manhole covers, and perfectly securing worker safety during the working procedure while improving work productivity. To achieve the purpose, in accordance with the present invention, the chain gear type manhole opening and closing device includes: a support means (10); a pair of reducers (20) installed symmetrically with each other while being supported by the support means (10); a clutch means (50) installed between the reducers (20) and regulating power transmission between the reducers; a pair of chains (30) driven by a chain gear (31) of the reducers (20); manhole hangers (40) connected to the lower end of the chains (30) and inserted into a rectangular hole (101) of a manhole cover (100) to pull the manhole cover (100); and a spacing adjustment means (60) installed between the manhole hangers (40) and adjusting spacing between the manhole hangers (40) in accordance with the size of the manhole cover (100).

    본 발명은 체인기어식 맨홀개폐장치에 관한 것으로, 더욱 상세하게는 맨홀걸이와 쐐기부재 또는 수공걸이를 이용하여 맨홀뚜껑에 견고하게 결합되면서 감속기로 체인을 권취함으로써 간단하게 모든 종류(중량, 크기, 구조)의 맨홀뚜껑을 들어올릴 수 있고, 이 작업과정에서 작업자의 안전이 완벽하게 확보되면서 작업의 생산성을 향상시킬 수 있도록 구성되는 체인기어식 맨홀개폐장치를 제공함에 그 목적이 있고, 상기한 목적을 달성하기 위하여 본 발명은 지지수단(10)과, 지지수단(10)에 의해 지지되면서 서로 대칭되도록 설치되는 한 쌍의 감속기(20) 그리고 감속기(20) 사이에 설치되면서 감속기 간의 동력전달을 단속하는 클러치수단(50)과, 감속기(20)의 체인기어(31)에 의해 구동되는 한 쌍의 체인(30)과, 체인(30)의 하단에 접속되면서 맨홀뚜껑(100)의 직사각형 홀(101)에 삽입되어 맨홀뚜껑(100)을 견인하는 맨홀걸이(40)와, 맨홀걸이(40) 사이에 설치되면서 맨홀뚜껑(100)의 크기에 따라 맨홀걸이(40)의 간격을 조절하는 간격조절수단(60)으로 구성된다.


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    Title :

    CHAIN GEAR TYPE APPARATUS FOR OPENING AND SHUTTING MANHOLE'S COVER


    Additional title:

    체인기어식 맨홀개폐장치


    Contributors:
    SEO DO HWAN (author)

    Publication date :

    2022-10-11


    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 / B66C Krane , CRANES / E02D FOUNDATIONS , Gründungen / F16H Getriebe , GEARING





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