Working principle of emulsion pump head

1. First press
When we press the head for the first time, the head drives the auxiliary column to compress the spring together through the connected main column; In the process of compression spring, the outer wall of the piston is rubbed with the inner wall of the body to make the piston open the discharge hole of the auxiliary column; When the piston slides down, the air in the body is discharged through the secondary column discharge hole that has been opened.

2. Press repeatedly to discharge all the air in the body

3. Aspirate
Press the press head through the main column, auxiliary column, piston, and jointly compress the spring to discharge the air in the body, release the press head, and the spring moves back (up) due to the loss of pressure. At this time, the piston also moves down by rubbing the inner wall of the body to close the discharge hole of the auxiliary column; At this time, the liquid storage chamber in the body forms a vacuum suction state, the glass ball is sucked upward, and the liquid in the bottle is sucked into the liquid storage chamber through the straw.

4. Store liquid
Press the head several times, and store the liquid to the body through multiple aspirations until the liquid is full.

5, out of the liquid
When the liquid in the body reservoir cavity is full, the liquid is expelled directly from the nozzle through the discharge hole by pressing the press head again.