How to make a spray pump head

The spray pump is a very common auxiliary accessory for liquid containers in the fields of cosmetics, washing products, plant cultivation, and other household products. It is used to press the liquid in the bottle to make the air and liquid flow out of the small hole quickly. The tube rises, flows out from the upper part of the thin tube, is impacted by the airflow, and diffuses into the air in the form of a spray to form small air suspension particles.
There are more mature spray pump head settings, including the pump body installation part with the locking cap, the pump body installation part, the liquid inlet at the lower end of the pump chamber, the pump beads of the liquid inlet, the upper pump rod in the pump chamber, the upper end of the pump rod protrudes from the pump chamber, the upper-end connection of the upper pump rod, the upper-end connection of the upper pump rod, the lower end connection of the upper pump rod, the spray paint on the button, the spray point connected with the spray channel, The positioning ring platform on the outer wall of the lower part of the upper pump rod, the upper-end connection of the upper pump rod at the upper end of the upper pump chamber, and the upper-end connection of the upper pump rod.
However, the spray pressure of this type of spray pump is completely determined by the acupressure of the keys. The greater the acupressure, the greater the spray pressure. Due to the speed and severity of the pressure and action of the hand pump head, the spray effect is poor and the atomization is unstable. When the bottom is pressed, even water droplets are sprayed directly from the nozzle, and the user feedback is not good.
However, the pump core still has certain defects. First, the structure of the upper channel is small, and the liquid flows quickly between the upper and lower channels. After the pressure is released in the upper channel, the liquid in the lower channel rises rapidly, and the upper and lower channels of the supplementary channel are generated. The pressure difference of the channel will form a jet shape, which affects people's user experience.
The second is that after the lower channel is pressed to form, it still maintains a large pressure after spraying. At this time, release the finger pressure. During the spring reset process, pressure will still be generated on the pump beads at the liquid inlet at the lower end of the pump core, which will affect the liquid inlet speed and The amount of liquid, so that the liquid after the pump core is reset is not easy to be completely filled, and a small amount of air is mixed in. Because the liquid is heavier than the air, the liquid will sink to the lower channel and the gas will enter the upper channel. Therefore, after being placed for a long time, when the pump core is ejected at one time, the amount of mist is small, or even unable to emit mist.