Anti-siphon mechanism of micro water pump and micro water pump

The utility model discloses an anti-siphon mechanism of a micro water pump. The valve comprises an upper cover and a valve plate mounted below the upper cover, a water outlet penetrates through the side surface of the upper cover; the upper cover is also provided with an air outlet and a water inlet; an anti-siphon mechanism is arranged in the valve plate; the anti-siphon mechanism comprises an air distribution chamber arranged on the valve plate; partition areas are arranged between the air distribution chambers. The interior of the sealed container is divided into an air outlet cavity, a water inlet cavity and a water outlet cavity through a partition area, a valve body device is installed in the air outlet cavity, a flow stopping device is installed in the water outlet cavity, and the problem that a traditional miniature water pump cannot smoothly pump out liquid in the sealed container with vacuum or siphonage occurs after liquid is discharged is solved. 本实用新型公开了一种微型水泵的防虹吸机构，包括上盖以及安装在上盖下方的阀板，所述上盖侧面贯穿设有出水口