The ornamental design for a cleaningdevice, as shown and described.
FIG. 1 is a perspective view of a cleaning device, showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a top plan elevation view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a left elevation view thereof;
FIG. 7 is a right elevation view thereof; and,
FIG. 8 is a perspective view showing the cleaning device in an environment of use.
The broken lines in FIGS. 1-7 depict portions of the cleaning device that form no part of the claimed design. FIG. 8 shows additional broken lines that depict a charging station which is environmental subject matter that forms no part of the claimed design.