Plug connection

A plug connection for a conduit comprising

• a plug receiving means having an opening therein for receiving a connecting plug portion, the plug receiving means including resiliently deformable spring tongue latching portions in the opening displaceable between a retracted position of clearing the opening and an inwardly displaced position of extending into the opening to latch the connecting plug portion in the plug receiving means to secure it therein against an axially acting force, each said spring tongue portion comprising a respective pressure nose protruding radially outward therefrom, said plug receiving means further comprising an outside periphery and at least one latching projection at said outside periphery;
• and
• a securing sleeve on the plug receiving means and slidable axially thereon between a first receiving position and a second position, said pressure noses bearing under a biasing force against an internal wall surface of said securing sleeve when said securing sleeve is in the first position thereof, thereby urging said latching portions into their inwardly displaced position in which said connecting plug portion can be inserted into said receiving means by elastically deforming said securing sleeve radially outward and latched in said plug receiving means, and the securing sleeve in its second position permitting the latching portions for resilient outward displacement thereof into their retracted position for disengagement of the connecting plug portion from the plug receiving means, said securing sleeve further comprising latching grooves being co-operable with said at least one latching projection of said plug receiving means for fixing said securing sleeve in one of said first position and said second position.