in the various fig1 - 11 , illustrated are a housing 1 , a charger plug 2 , a stimulation plug 3 , a mobile locking element 4 , a locking element of the charger plug 5 , a locking element of the stimulation plug 6 , a thrust element 7 , and an inclined surface 8 . the housing 1 represented in fig1 and 2 comprises a charger plug 2 and four stimulation plugs ( each indicated by reference numeral 3 ). fig3 and 4 diagrammatically represent in particular the design illustrated in fig1 and 2 . the housing 1 comprises two mobile locking elements 4 a and 4 b in strip form , which can be displaced in a direction parallel to the line passing through the plugs 2 , 3 . each of strips 4 a and 4 b comprises a series of teeth 6 designed to lock the stimulation plugs 3 . the end of each strip 4 a and 4 b which culminates in the charger plug 2 comprises an inclined surface 8 . when the charger connector is inserted into the corresponding plug 2 , a force is exerted on the inclined surface 8 , which drives the strips towards the stimulation plugs 3 , simultaneously locking their access . preferably , springs ( not shown ) are associated with the locking strips 4 a and 4 b . they are located so as to return the locking strips 4 a and 4 b when all the connectors are removed from the housing 1 . the locking elements 6 can take the form of teeth , as indicated previously . alternatively , the locking strip 4 can include orifices ( not shown ) through which the plugs can pass . in this case , the locking elements are formed by the strip elements that are located between the orifices . the embodiment diagrammatically illustrated in fig5 comprises a locking rod 4 which pivots about its main axis . the locking elements 6 are angularly separated by 90 ° so that the charger 2 and stimulation plugs 3 are alternately locked . the embodiment of fig6 also presents a locking rod 4 that pivots , but in a direction perpendicular to the main axis of the rod . in the embodiment of fig8 and 9 , the charger plug 2 is located on a side of the housing 1 opposite to that where the stimulation plugs 3 are located . the mobile locking element 4 is formed by a semi - rigid tab , which is moved in response to the force exerted on the inclined surface 8 by the charger connector . the embodiment of fig1 and 11 presents a mobile locking element 4 that is mobile in a vertical direction . in the configuration illustrated in fig2 , a spring ( not shown ) holds the mobile element 4 in a bottom position ( rest position ). the upward movement of the mobile element 4 is obtained manually through the intermediary of a thrust element 7 that the user must push upward . the locking element 5 of the charger plug 2 is in the form of an inverted l . four locking elements 6 for stimulation plugs 3 are located along the mobile locking element 4 , perpendicular to the latter . in the rest position ( fig1 ), the locking element of the charger plug 5 blocks the charger plug 2 . the stimulation plugs 3 are available and can accommodate stimulation connectors . if the user wants to insert the charger plug , he must first remove the stimulation connectors , push the thrust element 7 upward and insert the power supply connector . once this operation is completed ( fig1 ), the stimulation plugs are blocked by the corresponding locking elements 6 . according to the variant of the invention that is not shown , the thrust element 7 is eliminated . in this case , the locking element 5 of the charger plug 2 comprises an inclined surface of a form and function identical to that described previously .
a housing for an electrostimulation device comprising a charger plug and a stimulation plug , designed to receive respectively a connector linked to a charger and a connector linked to a stimulation electrode , characterized in that it comprises a mobile locking element designed to alternately lock the charger plug or the stimulation plug .