The ornamental design for a chargingstand, as shown and described.
FIG. 1 is a perspective view of a charging stand showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 4;
FIG. 9 is an enlarged view of the indicated portion of FIG. 8; and,
FIG. 10 is a perspective view thereof with the headphone mounted.
The dashed broken lines illustrate portions of the charging stand that form no part of the claimed design. The dashed broken lines showing a headphone in FIG. 10 are for the purpose of illustrating environmental structure, and form no part of the claimed design.