Spray bottle for hair - how the spray pump works
For example, it is a continuous spray bottle. When the press head is pressed for the first time, the gas in the sealed body will be compressed (because the body is sealed with the ball valve). When the piston is pressed into the lower end of the body, the gas in the body will pass through the main column and the body. The gap between the sub-columns is discharged from the nozzle. When the press head bounces up, the piston and the sub-column are in a sealed state, and the piston and the main body are also in a sealed state, and then continue to rise under the action of the spring force, so that the sub-vacuum state is formed in the main body. Suction (or from a physical point of view, the force of atmospheric pressure) will make the liquid enter the body through the straw and the ball valve.
When the press head is pressed again, the ball valve is sealed with the body, the piston is sealed with the body/sub-column, and the liquid in the body is squeezed to generate pressure. When the liquid pressure acting on the piston is greater than the elastic force of the spring, the spring will It is compressed so that the sub-column and the piston are in an open state, and the squeezed liquid will quickly pass through the main column of the mist spray bottle, the press head and the cyclone groove of the fog point to generate atomization.
