| 摘要 |
PROBLEM TO BE SOLVED: To let a pipe joint be simply and positively connected with both of pipelines wherein the end positions of two pipelines to be connected with each other, are fixed thereto, and there exists a small step or slipping in position between the two pipelines. SOLUTION: This expansion pipe joint is formed out of a straight pipe 1 at the tip end part of which an universal type rubber ring socket part 3 is integrally formed up, and of a radial widening straight pipe 2 which accepts the straight pipe 1 in its inside so as to be slid. A revolving projected rib 4 to which an 'O' ring 5 is mounted, is formed up in the outer circumferential surface at the rear end of the straight pipe 1, a retaining half-split ring 6 is mounted to the tip end part of the universal type rubber ring socket part of the diameter widening straight pipe 2, and concurrently, a connecting straight pipe 7 having a diameter capable of being connected with other pipes, is integrally formed up at its rear end part.
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