| 摘要 |
PURPOSE: A synthetic resin pipe connecting device is provided to easily connect synthetic resin pipes by forming fixing flanges in one end of one or all of two connecting pipes bonded with respective ends of the synthetic resin pipes and installing a joint ring in the outside of the fixing flange. CONSTITUTION: Connecting pipe bodies(310,320) having fixing flanges(311,321) are installed in the ends of two synthetic resin pipes. A rubber packing member(370) is interposed between the flanges. Joint ring bodies(330,340) having bolt holes for combination via a bolt(350) and a nut(360) are installed in the outer faces of the fixing flanges. The joint ring bodies are composed of a face-to-face contact portion contacting with the fixing flanges and protrusions(333,343) formed in the face-to-face contact portion in radius and having bolt holes(332,342). The joint ring bodies are divided into pieces(331,341) having bolt holes. For making the pieces in a ring shape, combining sills(334,344) combined by the bolt are formed in the ends of the pieces. The ring bodies are joined by the combination of the combining sills. While the bolt holes are aligned, the joint ring body is firmly combined by the bolt and the nut. The connection of the synthetic resin pipes becomes easy. According to the division of the joint ring bodies, the installation of the joint ring bodies in the connecting pipes is convenient and the bending and deformation of the fixing flanges are controlled easily. By adhering the fixing flanges with the total force of the joint ring bodies, the synthetic resin pipes are kept watertight.
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