Split type multi-connected flange sheet hydraulic positioning and mounting tool

The utility model relates to the technical field of pipeline equipment, in particular to a split type multi-connected flange piece hydraulic positioning installation tool which comprises a split hydraulic assembly and a split hydraulic pump, the split hydraulic assembly comprises a U-shaped supporting arm, and the two ends of the supporting arm are provided with a fixing screw hole and a fixing ring which are concentrically arranged respectively. A variable-pitch adjusting rod with a shifting rod at the tail end penetrates into the fixing screw hole, a piston cylinder provided with a hydraulic pipe connector is installed in the fixing ring, a piston connected with a hydraulic ejector rod is arranged in the piston cylinder, and a first positioning locking block and a second positioning locking block are arranged on the hydraulic ejector rod and the variable-pitch adjusting rod. The hydraulic pipe connector is connected to the three-way valve through a high-pressure oil pipe and then connected with the split hy