Introduction
The backpack sprayer consists of a liquid medicine tank, a piston pump, an air chamber, a hose, a spray rod, a switch and a nozzle. When working, the operator presses the rocker up and down, and through the action of the connecting rod mechanism, the plug rod reciprocates in the pump barrel, with a stroke of 60 to 100 mm.
When the plug rod moves upward, the leather cup moves upward from the lower end, and under the leather cup, due to the continuous increase in the volume of the cavity composed of the leather cup and the pump barrel, a partial vacuum is formed. At this time, the liquid medicine in the liquid medicine tank, under the pressure difference between the liquid surface and the cavity, breaks open the water inlet ball valve, enters the pump barrel along the water inlet pipeline, and completes the water absorption process. When the leather cup moves downward from the upper end, the liquid medicine in the pump barrel begins to be squeezed, causing the liquid medicine pressure to increase suddenly, the water inlet valve is closed, the water outlet valve is pressed open, and the liquid medicine enters the air chamber through the water outlet valve. The air in the air chamber is compressed, which generates pressure on the liquid medicine (up to 800kPa), and the air chamber has the function of stabilizing the pressure. After turning on the switch, the liquid medicine is sprayed out through the nozzle.
Features
- The product is widely used in orchards, gardens, and greenhouses; for the prevention and control of pests and diseases of crops such as wheat, corn, sorghum, cotton, soybeans, peanuts, rice, and sugarcane, as well as the prevention and control of pests and diseases of flowers, vegetables, and fruit trees.
- It is used for disinfection and sterilization of public facilities such as stations, docks, and schools, as well as disinfection and sterilization of places such as poultry pens.
- It can also be equipped with a cart for spraying in urban green belts, parks, and lawns.