The working principle of the food pump: The pump cavity has an eccentric bump, when the flexible leaves away from the eccentric block, the volume between the leaves continues to increase, resulting in a vacuum, which makes the liquid inhalation uninterrupted entrance to the pump chamber. â‘¡ When the flexible blade rotates, the liquid is sucked into the discharge part from the suction part of the pump chamber. â‘¢ When the flexible blade comes into contact with the eccentric bump again, bending occurs, accompanied by a squeezing action, so that the liquid is discharged uninterruptedly and without pulsation to complete the whole process of suction and discharge.