The working principle of Lotion Pump :
1. First press: When we press the push button for the first time, the push button drives the auxiliary column to compress the spring together through the connected main column; during the compression spring, the outer wall of the piston rubs against the inner cavity wall of the body to force the piston to open the auxiliary column. Feed hole; when the piston slides down, the air in the body is discharged through the discharge hole of the auxiliary column that has been opened;
2. Multiple reciprocating presses: all the air in the body is expelled;
3. Liquid absorption: press the head by hand through the main column, auxiliary column, piston, and compress the spring together to expel the air in the body, then release the head, the spring moves back due to the loss of pressure, and the piston also passes friction The inner wall of the body moves down to close the discharge hole of the auxiliary column; at this time, the liquid storage cavity of the body forms a vacuum liquid suction state, sucks the glass ball upward, and draws the liquid in the bottle into the body liquid storage cavity through the suction tube .
4. Storage liquid: Press the button multiple times, and store the liquid to the body through multiple suctions until the liquid is full.
5. Discharge: When the liquid storage cavity of the body is full, press the button again and the liquid will be directly ejected from the nozzle through the discharge hole.

Yuyao Jinhai Glass And Plastic Manufacturing Plant specially organized and shared, hoping to help more people in need.