The air chamber is located on the outer side of the medicine liquid barrel, and the bottom of the air chamber is connected to the water outlet valve and water outlet joint, with screw threads at the connection. The upper part of the air chamber is marked with a safe water level line. The function of the air chamber is to hold air inside, stabilize the pressure, ensure uniform and continuous spraying of the medicine, and also play a buffering role to prevent damage to the components. There is a water outlet joint at the lower part of the gas chamber barrel body, which is connected to the spraying component.

The medicine liquid bucket is composed of a water filling cover, a bucket body, a bucket outer strap, a buckle, a saddle, etc. After covering with water, the seam is tight to prevent the medicine from splashing out. There is a vent hole in the center of the cover to ensure that the barrel is open to the atmosphere.

The spraying component consists of a rubber tube, a straight switch, a sleeve, a nozzle, and a nozzle. The through switch is composed of a switch core and a switch shell, and its opening or closing controls the flow or stop of the medicine liquid. A filter screen is installed inside the casing to filter the sprayed medicine. The nozzle is used to connect the sleeve and nozzle. The nozzle is composed of a nozzle body, a gasket, a spray blade, and a nozzle cap, which is used for spraying atomized liquid medicine.