An adapter device for arranging a container (4, 6) on the upper face (5) of a cleaning device (9), said adapter device consisting of an adapter plate (1, 2) with a support surface (13, 15) and at least one locking element for locking the container in place on the (4, 6) adapter plate. The adapter plate (1, 2) is divided into at least two parts and consists of a front adapter plate (1) and a rear adapter plate (2) which can be separately mounted on the upper face (5) of the cleaning device (9).