Plug connector housing assembly

摘要

A plug connector housing assembly includes an outer housing and an inner housing to be nested together in a plug-in direction. The housings include sides having approximately parallel opposed side walls with inner and outer surfaces. The side walls of the outer housing define an insertion opening with a peripheral region. A locking mechanism in the form of a rack extends in the plug-in direction on one of the side walls. A lever is associated with another of the side walls. A shaft is perpendicular to the plug-in direction and associated with the lever. A gear wheel segment meshes with the rack, is firmly connected to the lever on the other of the side walls and is rotatably supported on the other of the side walls about the shaft. The rack and the gear wheel segment are disposed at least at one of the sides, between the inner wall surface of the outer housing and the opposite outer wall surface of the inner housing. The side wall carrying the rack in the peripheral region of the insertion opening, and the gear wheel segment, have complementary guide elements fitting into one another only at a predetermined angular position of the gear wheel segment in the plug-in direction, and preventing rotation of the gear wheel segment during engagement with the rack, until after attaining a predetermined insertion depth of the gear wheel segment.