Inner diameter measuring tool for MPP electric power tube

The utility model provides a tool for measuring the inner diameter of an MPP electric power tube, and relates to the technical field of inner diameter measurement, the tool comprises a fixed rod, one end of the fixed rod is rotatably provided with a rotating rod, the fixed rod is slidably provided with a pushing sleeve used for pushing the rotating rod to rotate along the axial direction of the fixed rod, and the pushing sleeve is provided with a clamping groove used for clamping the rotating rod. The rotating rod is arranged in a sliding mode in the axial direction of the fixed rod, sliding assemblies are arranged on the two sides of the pushing sleeve, measuring rods are installed at the movable ends of the sliding assemblies, and the measuring rods are parallel to the axis of the fixed rod. When the inner walls of the measuring rods are completely attached to the MPP power tube, the distance between the measuring rods is the inner diameter of the MPP power tube, the measuring rods are pushed to make contac