The ornamental design for a rainchaincomponent, as shown and described.
FIG. 1 is an upper perspective view of a rain chain component;
FIG. 2 is a lower perspective view of the rain chain component;
FIG. 3 is a front elevational view of the rain chain component, the rear view being a mirror image thereof;
FIG. 4 is a side elevational view of the rain chain component, the opposite side view being a mirror image thereof;
FIG. 5 is a top plan view of the rain chain component;
FIG. 6 is a bottom plan view of the rain chain component; and,
FIG. 7 is an upper perspective view of the rain chain component shown in a position of use, interconnected to multiple components to form a rain chain.
The broken lines are for the purpose of illustrating environment only that form no part of the claim.