FIG. 1 is a perspective view of a sink stand showing my new design according to a first embodiment;
FIG. 2 is a perspective view in a use state with height adjustment elements fully screwed into four legs;
FIG. 3 is another perspective view in a use state;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a right side view thereof;
FIG. 8 is a top plan view thereof;
FIG. 9 is a bottom plan view thereof;
FIG. 10 is an enlarged view of portion 10 shown in FIG. 1
FIG. 11 is a perspective view of a sink stand showing my new design according to a second embodiment;
FIG. 12 is a perspective view in a use state with height adjustment elements fully screwed into four legs;
FIG. 13 is another perspective view in a use state;
FIG. 14 is a front view thereof;
FIG. 15 is a rear view thereof;
FIG. 16 is a left side view thereof;
FIG. 17 is a right side view thereof;
FIG. 18 is a top plan view thereof;
FIG. 19 is a bottom plan view thereof; and,
FIG. 20 is an enlarged view of portion 20 shown in FIG. 14.
The broken lines depict portions of the sink stand and form no part of the claimed design.