| 摘要 |
<p>An air-returning system for nursing bottle has an air-returning cover and an air guide tube (30). The air-returning cover comprises an upper cover (10) and a lower cover (20). At least two milk outlet openings are provided along the circumference of the upper cover (10), and the edges of the milk outlet openings extend downwards to form at least two first passages (11). Milk inlet openings are provided at the corresponding positions to the milk outlet openings along the circumference of the lower cover (20), and the edges of the milk inlet openings extend upwards to form second passages (21). The second passages cooperate tightly with the first passages to form a milk outlet passage. An airflow passage (22) is formed in the outside space of the milk outlet passage. The inventive air-returning system for nursing bottle has a simple structure and a good air-returning effect, and the nursing bottle is easy to clean.</p> |
