Non-excavation pipeline repairing device

• Main Authors: MENG CHAO, SHI JIANGANG, TANG DAIZHONG, HUA WENWEN
• Format: Patent
• Language: Chinese; English
• Published: 16.12.2022
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; NOZZLES; PERFORMING OPERATIONS; PIPES; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

The invention relates to the technical field of pipeline repairing, in particular to a trenchless pipeline repairing device which comprises a pipeline detection robot, a spraying module is installed on the pipeline detection robot in a foldable mode through a folding module, and the spraying module comprises a fixed pipe, a cylinder and a bent spraying pipe. One end of the fixing pipe is in a closed state and fixedly connected to the folding module, a cylinder is coaxially and rotatably arranged at the other end of the fixing pipe, a cavity is formed in the cylinder, the interior of the fixing pipe is communicated with the cavity, an injection pipe is fixedly arranged on a pipe body of the fixing pipe, and the injection pipe is communicated with a repairing liquid supply device through a pipeline. A plurality of bent spray pipes communicated with the interior of the cylinder are fixedly arranged on the side face of the cylinder in the circumferential direction, and nozzles at the tail ends of the bent spray p