The invention discloses a tool for opening a five-prevention well lid. The tool comprises a straight-tube-shaped stress rod. Supporting plates are connected to the left side and the right side of the bottom face of the front end of the stress rod. The two supporting plates are opposite and symmetric. A resistance rod is rotationally connected between the two supporting plates through a rotating shaft and extends to the portion below the stress rod. The rod end of the resistance rod is bent backwards to form a hook. A support rod is rotationally connected to the middle or the back of the portion between the two supporting plates through a rotating shaft and extends to the portion below the stress rod, and the length of the support rod is larger than that of the resistance rod. According to the tool, the lever principle is used, the tool can be operated only by one user, and the five-prevention well lid can be conveniently and safely opened.


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    Title :

    Tool for opening five-prevention well lid


    Contributors:
    ZHANG DAWEI (author) / TANG DAOFA (author)

    Publication date :

    2015-12-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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



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