Duct piece repairing device and repairing block positioning tool for same

The invention provides a segment repairing device and a repairing block positioning tool used for the device.The segment repairing device comprises a circular shell, a plurality of long-strip-shaped through grooves are formed in the upper surface of a top plate of the circular shell, all the long-strip-shaped through grooves are arranged in an array mode, and a detection assembly is arranged on the circular shell; the detection assembly is used for detecting the shape of the duct piece broken hole, the detection assembly comprises a plurality of sliding blocks, all the sliding blocks are located in the long-strip-shaped through groove and are in sliding connection with the top plate of the circular shell, the upper surfaces of all the sliding blocks are fixedly connected with vertical rods, and a rubber film is fixedly connected between every two adjacent vertical rods in all the vertical rods. The repairing block has the beneficial effects that the multiple vertical rods and the rubber films are arranged, wh