| 摘要 |
A device of blocking the stench backflow and a sewage sump applying the same are provided to reduce the replacement work of the soft tube according to the fixture of the tube between the first and second connection pipes. A device of blocking the stench backflow is composed of a first connection pipe(10) connected to the sewer pipe(40); a second connection pipe(20) whose one end is combined with the first connection pipe and other end is connected with an inlet pipe(50) of a sewage sump(60); and a soft tube(30) whose both ends are opened to circulate the sewage, wherein the end of one side is fitted at the combined area between the first and second pipes. A recessed groove is formed at the inner surface of the enlarging unit of the first connection pipe and a projection is formed at the recessed groove at the outer surface of the second connection unit. |
