With the gradual improvement of people's living conditions, the use of many household items has become more and more convenient, including the application of lotion pumps. An emulsion pump, also known as a push-type emulsion pump, is a liquid dispensing tool that uses the principle of an atmospheric pressure balance to make the emulsion in the bottle pop out by pressing and can also add external atmosphere into the bottle. Next, AOBANG Sprayer Pumps will talk about the working principle of a lotion pump and its important functions and parameters.

　　When purchasing a product containing an emulsion pump, you must know that during the pressing process, it needs to be connected to its head to drive the piston under the action of the compression spring. In the process of compressing the spring, the outer wall of the emulsion pump piston often makes the piston fully open through the friction of the inner cavity wall, and the liquid appears in the discharge hole of the piston head. As the piston moves down, the air inside will be expelled from the piston head.

　　We can completely discharge the air in the inner cavity by pressing it several times, then pressing the head with our hands, and then discharge the air in the inner cavity through the action of the piston connecting rod and the compression spring. At this time, if you loosen the pressure head of the emulsion pump by hand, the spring will lose its pressure and move down again. At this time, the piston moves down by rubbing the inner wall to close the discharge hole