Bottle lid of flowing phase reagent bottle

Bottle lid of flowing phase reagent bottle is including (20) one on one circular roof (10), first annular wall and second annular wall (30). The marginal trough of circular roof forms one first breach (12). First annular wall is located circular roof and is followed circular roof axial extension along the circumference ring of circular roof, and first annular wall has second breach (22) that a circular roof axial in edge runs through the setting, the first breach of second breach intercommunication. Second annular wall ring overlaps in first annular wall, and its axial that can use circular roof is rotated for first annular wall as the axle, and second annular wall has third breach (32) that a circular roof axial in edge runs through the setting. Wherein in a turned position department of second annular wall, the second breach aligns with third breach intercommunication. Above -mentioned bottle lid need not to dismantle the suction strainer head and can penetrate the bottle lid with the pipe, avoids the pollu