Labor-saving hoisting trolley for cable cover plate of transformer substation

The utility model belongs to a cable trench cover plate moving tool for the power industry, and particularly relates to a labor-saving hoisting trolley for a cable cover plate of a transformer substation. Comprising a trolley body, a balancing weight, a guide groove, a movable supporting frame, a pulley assembly and a lifting device, and the balancing weight is located on one side of the upper portion of the trolley body; the guide groove is located in the side, opposite to the balancing weight, of the upper portion of the trolley body. The movable supporting frame is arranged on the upper portion of the guide groove, and rolling wheels are arranged at the bottom of the guide groove, embedded in the guide groove and capable of moving in the guide groove. The pulley assembly is hinged to one side of the movable supporting frame and used for lifting or putting down the lifting device. One end of the lifting device is connected with the pulley assembly, and the other end of the lifting device is used for hanging