Structural principle of push-type spray bottle

The original hand sanitizer bottle has a press-type suction mechanism, which is mainly composed of a catheter, a liquid inlet valve, a spring, an exhaust valve, a piston, a liquid outlet pipe, and a liquid storage cylinder.

Its working principle is the same as that of a piston pump. It uses the movement of the piston to discharge the air in the liquid storage cylinder, resulting in the difference between the internal and external air pressure, and the liquid rises from the liquid outlet pipe under the action of air pressure and is discharged out of the pipe. When the liquid pipe is pressed down by hand, the spring is compressed so that the liquid inlet valve (round plastic ball) is closed downward, and at the same time, the exhaust valve (the small hole under the piston) is closed due to the downward movement of the piston. When it is opened, the liquid in the liquid storage tank flows out of the liquid outlet pipe; when it is loosened, the spring returns to its original natural state, so that the piston moves upward, the exhaust valve is closed, and the liquid inlet valve is opened, under the action of the external atmospheric pressure , the liquid enters the liquid storage cylinder from the catheter through the liquid inlet valve. In this way, the piston reciprocates up and down in the cylinder, continuously sucking the liquid out of the bottle.

Press-type spray bottle does not press water

If the spray cannot be sprayed out, it is recommended to check whether the small hole at the nozzle is blocked, unclog the small hole, or remove the nozzle, soak it in hot water for five minutes, and then install the nozzle.

The principle of spraying is to pressurize the bottle, and the liquid is sprayed out with extremely fine water particles under the high-pressure system. Therefore, when the spray cannot be sprayed, do not handle it casually, so as to avoid explosion and accidental occurrence. When the spray does not come out, it is recommended to follow the steps below:

1. First check the nozzle to see if the nozzle is blocked by foreign objects. If it is blocked, use a toothpick or a needle to clear the nozzle. Remember to cover the cover after using the spray usually to prevent dust from adhering to the spray head

2. Check the nozzle to see if the nozzle is sinking. If you press the nozzle too hard, the nozzle may not be able to automatically return to the original position after use. Pull the nozzle up and pull it to the same height as the original. After the nozzle is restored, it can continue to be used.

3. If the inside of the nozzle is blocked, you can remove the nozzle and soak it in hot water for about 5 minutes, then install the nozzle and return to normal use.