| 摘要 |
A pipe joint provided with a joint main body (2) having an insertion cylinder portion (3) inserted to an end portion of a pipe (1) to be connected, a clamp ring (5) having a slit (51) to fasten the end portion of the pipe (1) inserted to the insertion cylinder portion (3) by elastic fastening force, a diameter-expansion piece (6), releasable as to jump outward, held within the slit (51) to expand the clamp ring (5) against elastic force of the clamp ring (5), and a restriction sleeve (10A) covering the clamp ring (5) as to restrict the outward jump of the diameter-expansion piece (6). And, a pipe-insertion detector (K), detecting the insertion of the pipe (1) to a predetermined depth to release the restriction, is provided.
|
