| 摘要 |
PURPOSE: A jointing device of synthetic resin pipes is provided to secure a stable combining state through strong combination of a projection and an uneven groove of a fastening ring by assembling a male combining part and a female combining part and then assembling the fastening ring to fastening grooves. CONSTITUTION: A jointing device of synthetic resin pipes comprises a male combining part(2) forming a wing-combining groove(8) forming a projection(6), and a female combining part. A space-combining part(9) forming a fastening groove in the middle is installed to a side of the wing-combining part. Packing grooves(14), in which packings(15) are inserted, are formed to the outside of an insertion shaft(11). The female combining part forms an uneven groove(7) disposed to the wing-combining groove and combined to the projection. A protruded wing(4) forming a fastening groove(5') is installed to the female combining part. A space part(10), to which the space-combining part is disposed, is formed to a side of the protruded wing. The female-combining part forms an insertion groove(12) and a fitting projection(13) inside. A fastening ring(16) is combined to the fastening grooves formed to the outside of the projection and the uneven groove, to connect the male-combining part and the female combining part.
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