| 摘要 |
PURPOSE:To simplify the piping related to driving and water cleaning supply to the maximum possible extent by a method wherein a hydraulic pressure drive unit is connected to a single supply passage connecting a pressurized cleaning liq. supply device and a pipe interior cleaning device and a branch connecting part of the hydraulic pressure drive unit leading to a supply passage is provided within a cleaning robot. CONSTITUTION:In an interior cleaning robot 1, a single supply passage Lw is extended from a water pump Pw to a pipe interior cleaning position C and a control part 4 is provided with a branch connecting part Lb, which is connected to a hydraulic drive unit M. This single supply passage Lw is provided with a water grease supply device 5. After completion of the interior pipe cleaning, this water grease supply supplies the water grease into a driving and cleaning water supply circuit to prevent the rusting of the water motors m1 and m2 and valves Vow and V1 in this piping system. Also, since a cleaning water under high pressure can be used as such for a driving mechanism in a driving circuit, a pressure adjusting valve 6 is provided. |
