| 摘要 |
<P>PROBLEM TO BE SOLVED: To efficiently wash the inner wall of a sewer. <P>SOLUTION: A sewer cleaning device 1 for washing an inner wall 23a of a sewer 23 comprises a rotatable body 3, a plurality of bent pipe nozzles 5 provided on the peripheral surface of the body 3, and legs 31a, 31b for supporting the body 3. The body 3 is formed in a hollow cylindrical shape and its one end is connected with a hose 13, and the bent pipe nozzles 5 are spirally provided on the peripheral surface of the body 3. When pressure water is ejected from the bent pipe nozzles 5, the body 3 receives a driving force for rotation by its reaction. Continuously ejected pressure water is injected as washing water at approximately right angle all the time to the whole inner surface of the sewer 23 during rotation of the body 3, whereby inner wall washing of the sewer 23 can be efficiently performed. <P>COPYRIGHT: (C)2013,JPO&INPIT |
