1. First press ------ When the press head is pressed for the first time, the press head drives the auxiliary column to compress the spring together through the connected main column; in the process of compressing the spring, the outer wall of the piston rubs against the inner cavity wall of the body to prompt the piston to open The discharge hole of the auxiliary column; 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. Press back and forth many times-to exhaust all the air in the body;
3. Liquid suction------- After pressing the head with your hand through the main column, sub-column, piston, and the common compression spring to expel the air in the body, loosen the head spring as it loses pressure and go back (top) 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 cavity in the body forms a vacuum suction state, sucks the glass ball upwards, and passes the liquid in the bottle through the straw Inhale the liquid into the liquid storage cavity of the body.
4. Liquid storage ------Press the head several times and suck the liquid several times to store the liquid in the body until the liquid is full.
5. Liquid discharge------When the liquid in the main body's liquid storage cavity is full, press the head again and the liquid will be sprayed directly from the nozzle through the discharge hole;