| 摘要 |
A manhole for sewage and drainage is provided to prevent a drain outlet from clogging by installing foreign matter blocks at a drainage unit body. A manhole for sewage and drainage comprises a drainage unit(10), a sewage unit(30), and an intermediate pipe(50). The drainage unit includes a body(12), a drain outlet(14), and a cover(22). The body shapes into a pipe. The drain outlet is attached to the bottom of the body to drain rainwater coming from outside. The cover is mounted on the top of the body, and provided with a plurality of holes to let rainwater gather in the body. The sewage unit includes a sewage body(32), a sewage outlet(34), a sewage inlet, and a polluted water inlet(38). The sewage outlet is attached to the bottom of the sewage body to discharge waste water coming from individual houses. The sewage inlet is attached to the sewage body in opposite side of the sewage outlet to receive waste water from individual houses. The polluted water inlet is installed between the sewage outlet and the sewage inlet to receive polluted water from individual houses. The intermediate pipe is disposed between the drainage unit and sewage unit. A foreign matter blocks are installed at the drainage unit body to filter foreign matters in rainwater. |
