Spray pump is a kind of auxiliary accessories for liquid container which is very common in the field of household products such as cosmetics, washing products and plant cultivation.Used to put the liquid inside the bottle, through the way of press, the air and liquid rapidly from small hole, hole pressure is small, near container liquid level at the top of the air pressure is very big, liquid along the small hole at the bottom of the tubes, thin tube after flowing out, impact of airflow, spread into the air, in the form of spray forming small air suspended particles.
The existing relatively mature spray pump head setting,Including lock cap of pump body, pump body installation department, installation department into the inlet of the bottom of the pump chamber, the pump fluid inlet beads, indoor on the pump rod, on pump rod pump chamber, hanging on the top of the top connection of the pump rod and pump on the top connection of the rod, the bottom connection of the pump rod, spray, spray points on the button of fog is connected with the injection channels point, on the lower part of pump rod outer wall of the locating ringThe upper end connection of the upper pump rod of the upper pump chamber, the upper end connection of the upper pump rod, the upper end connection of the upper pump rod, the upper end connection of the upper pump rod, the upper end connection of the upper pump rod, the upper end connection of the upper pump rod, the upper end connection of the upper pump rod, the upper end of the upper pump rod.
But the spray pressure of this kind of spray pump is completely determined by the finger pressure of the key. The greater the finger pressure, the greater the spray pressure.Because of the speed and speed of the pressure and action of the hand pump head, the spray effect is poor and the atomization is unstable.In the bottom pressure, even from the nozzle directly ejected water droplets and other undesirable phenomena, user feedback is not good.
But the pump core still has certain defects, one is the upper channel structure is small, the liquid flows faster between the upper and lower channels, the pressure is released in the upper channel, the liquid in the lower channel rises rapidly, the pressure difference between the upper and lower channels is generated in the supplement channel, and the injection will be formed, affecting people’s use feeling.
Two is the lower channel pressure to the formation, still maintain a large pressure after spraying, release the finger pressure at this time, the spring return process, will still produce pressure on the lower end of the pump core inlet pump bead, affect the liquid inlet speed and liquid intake, so that the pump core reset after the liquid is not easy to be fully filled, a small amount of air mixed.Because the liquid is heavier than the air, the liquid will sink into the lower channel and the gas will enter the upper channel.So after a long time placed, the pump core in a spray, the amount of fog is small, or even can not fog.Affects the use of sensation.