| 摘要 |
A bidirectional coupler for drainpipes is provided to prevent damage of the drainpipes by fixing connection parts of a branch pipe and a connection pipe through a fastening band. A bidirectional coupler for drainpipes comprises a concrete base(110), a drain pipe(120), a fastening band(130), a connection pipe(140), a bidirectional branch pipe(150), and a branch pipe(160). The concrete base has a mounting groove(111) formed on its upper surface, and a plurality of anchor bolts(113) formed at both ends of the mounting groove. The drain pipe has a connection hole(121) at its upper surface, and is mounted on the mounting groove of the concrete base. The fastening band has a through-hole(131) corresponding to the connection hole, and a bolt hole(132) into which the anchor bolt of the concrete base is inserted. The connection pipe has a first connection part(141) formed at its upper end. The bidirectional branch pipe has a first threaded part(153) to be coupled with the first connection part of the connection pipe. The branch pipe has a second threaded part formed at the other end to be coupled with a second connection part of the bidirectional branch pipe.
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