A directional sliding connector mechanism, comprising: a fixing base (1), a guide rail (101) being provided on the fixing base (1) a sliding connector (2), capable of moving relative to the fixing base (1) a shielding bracket (3), rotatably installed on the fixing base (1), one end of the shielding bracket (3) being capable of moving along the guide rail (101) on the fixing base (1), and another end being connected to the sliding connector (2) an elastic element (4), one end of the elastic element (4) being fixed on the fixing base (1), and another end being connected to the end of the shielding bracket (3) capable of moving along the guide rail (101). The elastic element (4) is capable of exerting a force on the end of the shielding bracket (3) moving along the guide rail (101), causing said end to move along the guide rail (101) to two ends thereof. The shielding bracket (3) is rotatably installed on the fixing base (1) so as to drive the sliding connector (2) to move reciprocally. The elastic element (4) ensures that the sliding connector (2) is completely inserted into a pipe opening connected to the sliding connector (2) or completely removed from the pipe opening connected to the sliding connector (2). Also provided is an automatic nursing device for urination and defecation.Linvention concerne un mécanisme dinterface à coulissement orienté comprenant une base de fixation (1) sur laquelle vient rail (101) une interface de coulissement (2) se déplaçant en correspondance par rapport à la base de fixation (1) un support de garde (3) placé mobile sur la base de fixation (1) et dont une extrémité se déplace le long du rail (101) de la base de fixation (1) et lautre extrémité est reliée à linterface de coulissement (2) et une unité élastique (4) dont une extrémité est fixée sur la base de fixation (1) et lautre extrémité est reliée à une extrémité du support de garde (3) susceptible de se déplacer le long du rail (101). Lapplication dune pression sur une extrémit
