How to open the bottle of hand sanitizer?

Turn it upward and lift it. You can bounce. It's actually quite simple. You can see how it works and it will be more convenient to operate in the future!

The hand sanitizer bottle has a press-type liquid absorption mechanism (Figure 1), which is mainly composed of a liquid guide tube, a liquid inlet valve, a spring, an exhaust valve, a piston, a liquid outlet tube and a liquid storage cylinder.

Its working principle is the same as that of piston pump. The air in the liquid storage cylinder is exhausted by the movement of the piston, resulting in the pressure difference between the inside and outside, so that the liquid rises from the liquid outlet pipe and is discharged outside the pipe under the action of air pressure. When the liquid outlet pipe is pressed by hand, the spring is compressed to close the liquid inlet valve (round plastic ball). At the same time, as the piston moves down, the exhaust valve (small hole under the piston) is opened, and the liquid in the liquid storage tank flows out of the pipe from the liquid outlet pipe. When the user releases it, the spring returns to its original natural state, so that the piston moves upward, the exhaust valve closes and the liquid inlet valve opens. Under the action of external atmospheric pressure, liquid enters the liquid storage barrel from the liquid guide pipe through the liquid inlet valve. In this way, the piston reciprocates up and down in the cylinder, constantly sucking the liquid out of the bottle.