| 摘要 |
PURPOSE: A drainpipe-connecting socket is provided to endure an external impact by securing water-tightness and flexibility by using a rubber packing and to control the connection of a drainpipe. CONSTITUTION: As for coupling a drainpipe(12) flowing and discharging rainwater and wastewater or a connecting socket(23) to a manhole(20), a drainpipe-connecting socket is composed by interposing an elastic packing(25) among a manhole body(20), the pipe(12) and the connecting socket(23) or between the connecting socket(23) and the pipe(12).
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