| 摘要 |
PURPOSE: A rainwater pipe with an undercurrent part is provided to prevent foreign materials flowing into the undercurrent part of the rainwater pipe from becoming piled up. CONSTITUTION: A rainwater pipe(110) forms an undercurrent part(120) for storing water. Multiple rainwater outlets are bored in the bottom and the outer surface of the undercurrent part. A rainwater inlet and a rainwater outlet are formed in the undercurrent part. Inclined surfaces are formed in the rainwater inlet and the rainwater outlet. The rainwater pipe uses one of a circular drainpipe, a corrugated steel pipe, a perforated drainpipe, and a rainwater block. |
