| 摘要 |
<p>The invention concerns a rapid connection coupling (10) for transferring gases and/or liquids, in particular for coolant filling operations in air conditioning systems. The coupling in question comprises the following elements: a tubular housing (11); an outer sliding sleeve (18) which can slide relative to the housing (11); a number of radially expanding collet chuck elements (15) mounted on the housing (11) and provided with an engaging contour (17) which facilitates connection to a matching connection nipple (30); and a sealing piston (22) capable of sliding centrally inside the housing (11), the said sealing piston being brought into contact with the connecting nipple (30). To ensure easy handling, it is proposed that a sliding ring (40) which can slide independently and is acted on by a spring should be provided between the sealing piston (22) and the collet chuck elements (15); the sliding ring engages with the collet chuck elements (15) and keeps them in the open position when the plug-in connection coupling (10) is in the uncoupled position, and is so fitted as to be capable during the coupling action of sliding with the sealing piston (22) to break the engagement with the collet chuck elements (15).</p> |
