| 摘要 |
PURPOSE: A sewer pipe attached with a socket for expansion and shrinkage is provided to uniformly maintain the line of a sewer pipe which is constructed by moving the sewer pipe inside the socket when expansion and shrinkage are repetitively applied according to temperature change. CONSTITUTION: A sewer pipe(1) comprises a socket(10) for expansion and shrinkage. Multiple rubber rings(20), a separation preventing clip(30), and an inner sill are formed on the inner surface of the socket. Multiple rubber rings maintain water-tightness. An adjacent sewer pipe is connected to the socket, and the separation protection clip prevents the sewer pipe from being separated from the socket due to expansion and shrinkage. The end of the adjacent sewer pipe is hung on the inner sill.
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