| 摘要 |
The plug-and-socket connection provided with an automatically closing device that prevents drainage is comprised of a cylindrical socket housing (1) having an opening (4) for inserting a tubular plug part (5), which is provided with a holding rib (8) that encircles the plug part. Said holding rib can be held inside a locking element (9) arranged in the insertion area of the socket housing (1). In addition, the interior of the socket housing (1) is provided with sealing rings (11, 12) for sealing the annular gap between the inner wall (20) of the socket housing (1) and the inserted plug part (5). A valve body (16) is provided inside the flow-through space of the socket housing (1), automatically closes the flow-through space and, when inserting the plug part (5), is pressed by the face (26) of said plug part against the force of a spiral spring and into the open position. The valve body (16) is preferably provided as a bush (21), which is closed at its end located away from the insertion opening by a terminating wall (22) and through which a radial rib (23) passes. Four ribs (18), which are parallel to the axis and which are uniformly distributed over the periphery, are formed on the back side of the terminating wall (22). Said ribs (18) are guided, in a longitudinally displaceable manner, inside corresponding longitudinal slots (19) in the inner wall (20) of the socket housing (1).
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