| 摘要 |
PURPOSE: A sewage inlet is provided to efficiently prevent the backflow of sewage and minimize the bad smell exhausted from the top of a manhole where the sewage inlet is buried. CONSTITUTION: A sewage inlet comprises a main body(1), a backflow prevention cap(2), and a water sealing cap(3). In the main body, sewage is collected and drained. The backflow prevention cap is coupled to the interior of the main body and prevents swage and bad smell from flowing back. The water sealing cap is coupled to one side of the main body to constitute a water sealing trap. |
