Local CIPP lining repairing device

The utility model relates to a local CIPP lining repairing device, and relates to the technical field of pipeline repairing. The utility model discloses a local CIPP lining repairing device. Comprising an expansion cylinder, a plurality of heating plates uniformly laid on the inner side wall of the expansion cylinder, two mounting bases arranged at the two ends of the expansion cylinder, three connecting plates uniformly and circumferentially arranged on the end faces, away from the expansion cylinder, of the mounting bases, and rollers arranged at the ends, away from the axis of the expansion cylinder, of the connecting plates. The gas conveying pipe vertically penetrates through one of the mounting seats, the mounting seats are coaxial with the expansion cylinder, the rolling wheels abut against the inner wall of a pipeline and roll in the direction parallel to the axis of the expansion cylinder, the gas conveying pipe penetrates into an inner cavity of the expansion cylinder, and the expansion cylinder is