Baby trolley for leisure of mother and baby and main piece matched device thereof

The utility model discloses a baby trolley for leisure of a mother and a baby and a main piece matched device thereof. On a connecting rod (12) of a left rear wheel and a right rear wheel of a common baby trolley (11), a left movable connecting buckle (9) and a right movable connecting buckle (10) on the main piece matched device thereof are connected and are respectively connected with a movable connecting support rod (7) and a movable connecting support rod (8); the other ends of the two movable connecting support rods are connected with a folding seat (6) which separates and closes the other ends of the two movable connecting support rods on the folding seat (6) flexibly according to the conditions to be connected between the connecting rods (12) of a left rear wheel and a right rear wheel of the common baby trolley (11) with different widths; the folding seat is connected with a movable and detachable connecting rod which is fixed on the folding seat by a screw (5); wheels (3) are arranged below the movable and detachable connecting rod, and a trolley seat (1) is arranged thereabove; the height of the trolley seat can be lifted and fixed under the function of a fastening buckle (2); and the main piece matched device thereof can be folded and stored to be hung on a buckle belt (13) or placed down for use according to the conditions.