What cooperation water dispenser was used prevents lid that flows backwards

The utility model discloses a what cooperation water dispenser was used prevents lid that flows backwards, including lid and U type pipe, the both sides of lid inner end are equipped with the delivery port, connecting on the delivery port U type pipe, the other end of U type pipe is leading to an outlet duct, the top of delivery port is equipped with single anti -return valve that leads to. The utility model discloses can the effectual user of preventing use the aquatic, the water that the is arranged in the water dispenser water cavity originally cask that flows back again reduces the pollution to water. 本实用新型公开种配合饮水机用的防倒流盖子，包括盖体和U型管，所述盖体里端的两侧设有出水口，所述出水口上连接着所述U型管，所述U型管的另端通着出气管，所述出水口的上方设有单通防回流阀。本实用新型可以有效的防止用户在用水中，本来位于饮水机水腔中的水重新回流到水桶中，减少对水的污染。