The ornamental design for a framestructure of babycarriage, as shown and described.
FIG. 1 is a front view of a frame structure of baby carriage showing our new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof,
FIG. 7 is a perspective view thereof,
FIG. 8 is a right side view thereof showing the state in which a backrest portion is reclined backward,
FIG. 9 is a right side view thereof showing the state in which the backrest portion is reclined backward and a handle bar is displaced to a face-to-face position; and,
FIG. 10 is a right side view thereof showing the state in which a baby carriage is folded.