In our daily life, you often use the hand-washing liquid to wash your hands and shampoo, then do you know the principle of the pump-type hand sanitizer? Do you know how the liquid is sucked up? introduce:
      The original hand sanitizer bottle has a push-type liquid suction mechanism, which is mainly composed of a liquid guiding tube, an inlet valve, a spring, an exhaust valve, a piston, a liquid outlet tube, a liquid storage tube and the like.
      The principle of the pump-type hand sanitizer is the same as that of the piston pump. The movement of the piston is used to discharge the air in the liquid storage cylinder, causing a difference in air pressure between the inside and the outside, so that the liquid rises out of the liquid discharge pipe and is discharged from the liquid discharge pipe. When the liquid pipe is pressed down by hand, the spring is compressed so that the inlet valve (circular plastic ball) is closed downward, and at the same time the piston is moved downward, and at this time the exhaust valve (the small hole below the piston) is Open, the liquid in the liquid storage pipe flows out of the pipe from the liquid discharge pipe; when it is released, the spring returns to the original natural state, so that the piston moves upward, the exhaust valve is closed, and the liquid inlet valve is opened, under the action of the external atmospheric pressure. The liquid enters the reservoir from the catheter through the inlet valve. In this way, the piston reciprocates up and down in the cylinder, continuously sucking the liquid out of the bottle.
      I believe that everyone here has some understanding of the principle of pumping hand sanitizer, I hope the above introduction can bring you help.
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