The structure principle of single tube sprayer

In the suction seat at the bottom of the single-tube sprayer, there is an inlet valve. On the outer wall of the tube inside the air chamber, there is a water outlet valve. There are copper balls in both valves. During work, due to pressure changes, the steel ball jumps up and down to open and close the valve to control the flow direction of the liquid medicine.
When the plug rod rises, the space in the leg tube suddenly increases, thus forming a partial vacuum. Under the action of atmospheric pressure, the chemical liquid rushes through the copper ball in the water inlet valve and enters the Qingjian tube. When the plug rod is pressed down, the copper ball in the water inlet valve closes the water inlet hole. The liquid medicine that has entered the barrel can only flow out from the upper part of the barrel through the hole of the outlet valve, push the copper ball inside the outlet valve, and enter the air chamber. The liquid medicine gradually increases, compressing the air in the air chamber to generate pressure. The greater the compression ratio, the greater the pressure generated.

The pressurized liquid medicine enters the nozzle vortex chamber through a pipe (hose, spray rod, etc.) through a water outlet connector and enters the nozzle vortex chamber with high-speed swirling flow, resulting in a vortex. Due to the centrifugal effect of the vortex and the pressure difference between the inside and outside of the nozzle hole, the liquid medicine will form a mist after passing through the nozzle hole.