Cable repairing device

The invention discloses a cable repairing device, and relates to the technical field of cable repairing, the cable repairing device comprises two semicircular pipes, the two sides of the two semicircular pipes are both provided with fixing structures, each fixing structure comprises two fixing blocks and a tooth block, the two fixing blocks are installed on the same sides of the two semicircular pipes respectively, and the two fixing blocks are in a mirror symmetry relation; clamping grooves are formed in the bottom of the fixing block close to the top and the top of the fixing block close to the bottom, a first lead screw is rotationally connected to the position, located in the clamping grooves, of the top of the fixing block close to the bottom, a second lead screw is rotationally installed at the position, located in the clamping grooves, of the bottom of the fixing block close to the top, and the tooth blocks are adaptively matched with the two clamping grooves; and the tooth block is located between the