A device for loading medical containers on dosing machines, includes an adaptor for medical containers and a support for the adaptor, in which the support includes an attachment means to the dosing machine and in which the adaptor and the support include means for pivoting relative to one another and means for clipping to each other. The means being arranged in such a way that the pivoting of the adaptor and of the support by means of the pivoting means produces the clipping together of the adaptor and the support.
