| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To disclose a detaching and attaching assembly capable of opening and closing selectively a flow passage of a pipe. <P>SOLUTION: This detaching and attaching assembly is attached to the first valve and the second valve in one-ends of the first pipe and the second pipe provided with the flow passage, and is attached with the first driving shaft and the second driving shaft respectively in one-sides of the first valve and the second valve. The first valve and the second valve form respectively spherical body inside inner and outer side faces, and closes the flow passage of the pipe by overlapping each other the inner side face of the first pipe with the outer side face of the second pipe having the same radius of curvature. The pipe is thereby separated or connected without removing a fluid flowing in its inside, when repairing and replacing the pipe, and not only the flow passage in the inside of the pipe is completely blocked through the curve face-shaped valve but also simple structure, facilitation for use and maintenance/repair are easy. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
