| 摘要 |
An earth preventing device of a confluent sewer manhole is provided to prevent objects from being drained with rainwater to a drain pipe by installing a mesh unit on a main body. An earth preventing device of a confluent sewer manhole comprises a main body(10) and a mesh unit(20). The main body is provided with recesses(11) and protrusions(12), which are formed at regular intervals in a direction from a confluent pipe of a rainwater chamber(3) to a discharge pipe. Central protrusions of the main body are lower than edge protrusions formed at confluent pipe and the discharge pipe sides. Rainwater and waste water flowing over the central protrusions runs to a drain pipe. The mesh unit is mounted on the main body to prevent adulteration from falling on the main body and to lead the adulteration to the discharge pipe. |
