Climbing device with replaceable polygonal steel pipe pole

The utility model discloses a climbing device with a replaceable polygonal steel pipe pole, and relates to the field of power transmission equipment. The device comprises a supporting assembly, the supporting assembly comprises a mounting groove fixedly connected to the middle side of the surface of the front end of the steel rod, a connecting block fixedly connected to the bottom side of the inner end of the mounting groove, a first hinge fixedly and rotationally connected to the upper end of the connecting block, and a hydraulic cylinder rotationally connected to the upper end of the first hinge. The hydraulic rod is connected to the upper end of the hydraulic cylinder; and the second hinge is rotationally connected to the top end of the hydraulic cylinder. Through the arrangement of the supporting assembly, the problems that when an existing worker climbs a power transmission steel pole for operation, due to the fact that the worker operates on the power transmission pole for many times, under the unsuperv