| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pipe line connecting structure that reduces resistance of a ring seal body for retaining pipe line sealing in connecting and removing the pipe line. <P>SOLUTION: A sheath pipe part 11 provided with a seal housing recess 12 with the whole face on a pipe end side opened is provided in a pipe end side of a connection pipe (a receiving pipe) 1, a ring seal body 14 is fit in the seal housing recess 12, and the other connection pipe (an insertion pipe) 2 is inserted into the sheath pipe part for sealed connection. A locking step part 13 is formed in a rear circumferential face of the sheath pipe part. A locking projection part 21 is provided in an exposed circumferential face of the other connection pipe. A housing body provided with, on an inner circumference face, a locking receiving part and a locking recess locked onto the locking step part and the locking projection part, respectively, is detachably attached to a connection portion. <P>COPYRIGHT: (C)2013,JPO&INPIT |
