| 摘要 |
Disclosed is a tube reversing device for repairing a pipeline facilitating the movement of a tube even though the tube has a large diameter, maximizing lifting power by improving the structure of a roller while minimizing width, minimizing a phenomenon that the tube is slid, maximizing airtightness, and having simple structure by enabling a driving device for airtightness to be omitted. The tube reversing device for repairing the pipeline reverses and inserts the device inside the underground pipeline by using compressed air and includes a body with an inlet on one side to enable the tube to be inserted and an outlet on the other side to supply the tube to the pipeline and a tube rounding unit for bending the tube inserted via the inlet. The tube rounding unit is composed of a bent unit bent downward to both sides of the inlet from the center of the inlet. Both sides of the tube are bent downward by the bent unit, thereby being inserted inside the body. Therefore, the entire longitudinal width of the tube can be reduced by bending both sides of the tube downward. Furthermore, a sealing unit includes a lower airbag arranged on the lower side of the tube and filled with air and of which volume is expanded and an upper airbag arranged on the upper side of the tube and filled with air and of which volume is expanded. Therefore, the tube reversing device is capable of easily transporting the tube, improving working efficiency, and preventing the tube from being congested by improving the lifting power. |
