| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary self-propelled pipe-inside washing machine capable of efficiently and uniformly washing the wall face of an existing pipe culvert.SOLUTION: A rotary self-propelled pipe-inside washing machine 1 includes a tubular washing machine body 11, a mounting base 12, a branch pipe 14, propelling nozzles 15 and washing nozzles 16. A high pressure hose 22 for supplying washing water W1 is connected to the washing machine body 11. The mounting base 12 includes a plurality of leg parts 24 provided with wheels at ends, and the washing machine body 11 is arranged at the center of an existing pipe culvert 2. The branch pipe 14 is connected to the washing machine body 11 via a swivel joint 13, and the propelling nozzles 15 and washing nozzles 16 are mounted on the branch pipe 14. By jetting the washing water W1 from the propelling nozzles 15 and washing nozzles 16, the washing machine body 11 is moved forward, and the propelling nozzles 15 and washing nozzles 16 are rotated together with the branch pipe 14. |
