The ornamental design for a rainguttercleaningdevice with a 180° rotatable blade, as shown and described.
FIG. 1 is a right side perspective view of my design for a rain gutter cleaning device with a 180° rotatable blade showing the new design;
FIG. 2 is another right side perspective view with the 180° rotatable blade in an alternate configuration;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is a rear view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a top view thereof.
The broken lines in the figures depict portions of the rain gutter cleaning device with a 180° rotatable blade that form no part of the claimed design.