| 摘要 |
PURPOSE: A brush type cleaning device for a well is provided to clean an inner wall of a casing even when an outer diameter of the cleaning device is smaller than an inner diameter of the casing. CONSTITUTION: A brush type cleaning device for a well comprises a body (11) and a plurality of brush hair units. The body and the outer diameter of the brush hair units are smaller than the inner diameter of a casing to be inserted into the well. The body and brush hair units move up and down with rotating to clean an inner wall of the casing. The body is made of flexible materials, and able to be bent so that the brush hairs unit cleans the inner wall of the casing. |
