| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a device which efficiently and surely travels/cleans the inside of a pipe. SOLUTION: This device consists of a guide G, which has a fluid take-in port 1c, a fin rotating body 14, which is rotated by an air taken in from the fluid take-in port 1c, and a cleaning brush 4c, which is linked with the rotation of the fin rotating body 14. The cleaning brush 4c is rotated with a non-contact coupling using a magnet. A pipe inside wall-contact part of the guide part G is formed of a flexible material and a fluid passing hole 2c is bored in the outer circumferential part of the guide part G. A speed changing means 15 is interposed between the fin rotating body 14 and the cleaning brush 4c. A fluid direction-changing means is provided opposed to the fin rotating body 14 on the up stream side of an air in the position of the fin rotating body 14.</p> |
