| 摘要 |
PCT No. PCT/EP88/00352 Sec. 371 Date Jan. 16, 1990 Sec. 102(e) Date Jan. 16, 1990 PCT Filed Apr. 27, 1988 PCT Pub. No. WO89/00655 PCT Pub. Date Jan. 26, 1989.A plug coupling for providing a pressure-sealed connection to a device having a cylindrical connector. The coupling has a tube-like support element having a front portion provided with a sealing ring and a rear portion formed as an inlet part. Elongated clamping jaws are linked to the support element and extend in a generally axial direction. The clamping jaws are arranged concentrically around a longitudinal axis of the support element and have free ends radially displaceable. A sleeve surrounds the support element and is shiftable in longitudinal direction and has a front end portion provided with a rim for engaging peripheral surfaces of the clamping jaws for locking them in an engaged position. The sleeve is urged into the engaged position either by a spring or by pressure. An arresting device blocks the sleeve to prevent this engagement of the plug coupling when fluid pressure is applied thereto.
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