Pesticide spraying device of plant protection unmanned aerial vehicle

The utility model provides a pesticide spraying device of a plant protection unmanned aerial vehicle. The pesticide spraying device comprises a propeller wing, a motor, a bearing plate, a signal plate, a power supply plate and a spraying structure. A power supply plate is powered on to connect a signal plate to drive a motor to work, propeller wings are made to rotate to provide upward lifting force, prepared pesticide liquid is added into a liquid storage tank in a spraying structure and is pressed out of a spray head through a press pump, and the outer walls of the liquid storage tank and the spray head are continuous curved surfaces, so that the pesticide liquid cannot adhere to the outer walls of the liquid storage tank and the spray head to cause blockage; the secondary use of the device is influenced. 本实用新型提供了一种植保无人机喷药装置，包括螺旋桨翼、电机、承载板、信号板、供电板和喷洒结构；供电板通电接通信号板带动电机工作，并使螺旋桨翼旋转提供向上升的力，喷洒结构中的储液箱加入配置好的药液，通过压泵机从喷头压出，储液箱和喷头外壁呈连续的曲面，使得药液不会粘附在储液箱和喷头的外壁，造成堵塞，影响装置的二次使用。