| 摘要 |
<p>PURPOSE: To secure sealing property, by providing a male type sleeve ring installed on the outer peripheral surface of the first metal pipe, and having a male screw on the outer peripheral surface; and a female type sleeve ring installed to the second metal pipe having a contracted diameter part contacting with the flare part of the first metal pipe, and having a recessed receiver forming a female screw. CONSTITUTION: A male type sleeve body and a female type sleeve body 4 and 10 are connected through a male screw 5 and a female screw 12. Between the tapered surface at the front end of the male type sleeve ring 4, and the tapered surface at the bottom of the recessed receiver 11 of the female type sleeve ring 10, the flare part 3 of the first metal pipe 1, the contracted diameter part 9 of the second metal pipe, and a locking part 8 are held, and the flare part 3 of the first metal pipe 1, and the contracted diameter part 9 of the second metal pipe 2 are pressed each other by the fastening force of the male type and the female type sleeve rings 4 and 10. By providing such a structure, the connection can be carried out in a simple structure without using a coupling, while securing the sealing property of both metal pipes 1 and 2.</p> |
