SEAT BODY SWIVEL STRUCTURE AND CHILD SAFETY SEAT

A seat body swivel structure and a child safety seat. The seat body swivel structure comprises a base (1), a rotary disc assembly (2), an electric rotation assembly (3) and a manual rotation assembly (4). The rotary disc assembly (2) comprises a rotary disc (21), a gear disc (22) and a locking assembly (23) for locking or unlocking relative positions of the rotary disc (21) and the gear disc (22). The rotary disc (21) is adapted to be connected to a seat body, and the gear disc (22) is connected to the base (1). When the rotary disc (21) and the gear disc (22) are locked to each other, the electric rotation assembly (3) drives the gear disc (22) to drive the seat body to rotation relative to the base (1); when the rotary disc (21) and the gear disc (22) are unlocked from each other, the manual rotation assembly (4) drives the rotary disc (21) to drive the seat body to rotation relative to the base (1). The seat body swivel structure combines electric and manual rotation modes, which enables parents or users to select proper rotation modes according to actual requirements, thus improving the usability, safety and flexibility of child safety seats.