| 摘要 |
A tube of a drain pipe is provided to completely block out stench from a sewer pipe, and to smooth the discharge of the sewage by forming catching pieces to front and rear sides of left and right sealing plates. A tube of a drain pipe is molded with rubber or soft synthetic resin and formed with left and right sealing plates(12,14) on a lower part of a pipe body(10). Catching pieces are formed to the front and rear sides of the left and right sealing plates to connect compression springs(4,6) between the catching pieces. The sealing plates are closely bonded by self-restoring force and elasticity of the compression springs. |
