Plug connector with axial locking function against separation

摘要

A plug connector has a male plug part, connected to an electric connecting cable and having contact elements, and a female plug part with matching counter contact elements providing electric contact in a contact position established when the male plug part is inserted into the female plug part. The female plug part has a sleeve-shaped housing having an inner circumferential surface with a locking edge. The male plug part has a locking sleeve and an outer sleeve axially slipped onto the locking sleeve. The outer sleeve has locking tabs engaging the locking edge in the contact position. The locking sleeve has several tongue-shaped thickened portions distributed circumferentially that have radially outwardly positioned cone-shaped locking surfaces. The locking tabs are spaced circumferentially from one another by a spacing that allows the thickened portions to pass between the locking tabs when the outer sleeve is slipped onto the locking sleeve. The outer sleeve is rotatable about an angle of half the angular spacing between the locking tabs so as to axially align the locking tabs and the thickened portions. The locking surfaces act on the locking tabs when the locking sleeve is axially loaded in a direction counter to the assembly direction to prevent the plug connector from separating.