| 摘要 |
PURPOSE: The sewage pipe connecting device of an injecting drain trench is provided to prevent a bad smell generation by making water flow smoothly without the disturbance of foreign substances. CONSTITUTION: The sewage pipe connecting device of an injecting drain trench includes a trench eccentric cam(50). A trench eccentric cam comprises an eccentric pipe(51) and an end projection(52). An eccentric pipe is inserted to a first drain outlet(11) or a second drain outlet(12) formed in the one side or both sides of the drainpipe(10) of an injection drain trench. An end projection is formed between the lower end surface of a trench eccentric cam and the lower end surface of an eccentric pipe and has the same depth with the thickness of the first drain outlet and the second drain outlet. In the state that the first drain outlet or the second drain outlet are inserted into an end projection, the inner diameter of the lower end surface of a trench eccentric cam and the inner diameter of the lower end surface of an eccentric pipe are formed in the same level. |
