| 摘要 |
<p>PURPOSE:To provide a pipe coupling structure which can certainly prevent the second pipe from separating off from the first pipe even though the fluid passing has a large pressure. CONSTITUTION:The second pipe 14 is inserted in the first pipe 10 with a certain gap G reserved relative to the bore of the first pipe 10. A groove 16 is formed as stretching circumferentially at the bore of the first pipe 10 and/or the peripheral surface of the second pipe 14. A ring-form member 18 is installed in the groove 16 as movable a certain distance in the longitudinal direction of the first pipe 10 and/or second pipe 14 and wedges into the gap G when it moves in the longitudinal direction.</p> |
