PIPE REPAIR DEVICE

摘要

The present invention relates to a pipe repairing apparatus and, more specifically, to a pipe repairing apparatus capable of partially repairing a rupture part in a pipe, capable of easily and smoothly performing a repair work regardless of the inner diameter of the pipe because having a diameter able to be adjusted to radially unfold or fold outer and inner expansion members through the simple operation of a cylinder, capable of preventing the penetration of foreign matters from the inside of the pipe into a body part through a moving member, and capable of easily crossing an obstacle stuck to the inner wall of the pipe. For the above effects, provided is a pipe repairing apparatus comprising: a body part installed to be movable along a pipe; multiple outer expansion members installed on the body part radially, and able to be radially unfolded or folded on the body part so that radial space parts can formed between the adjacent ends of the outer expansion members respectively; multiple inner expansion members positioned at the lower sides of the outer expansion members, installed on the body part radially, unfolded radially to close the space parts, and unfolded or folded to form a circumferential surface along with the outer expansion members; and a power supply part installed in the body part, able to reciprocate horizontally, and supplying power to sequentially unfold or fold the outer and the inner expansion members, wherein the circumferential surface with a predetermined diameter touches the inner surface of the pipe.