The application relates to the technical field of road and
bridge engineering construction, and discloses a device for unmanned aerial vehicle
water diversion and spraying maintenance for a high
pier in a
canyon, which comprises a
ground control station, a
water storage tank, an unmanned aerial vehicle, a water conveying hose, an automatic winding and unwinding
assembly, a filtering device and a water pump; the
water storage tank, the water pump, the filtering device and the water conveying hose are sequentially communicated; part of the water conveying hose is wound on the automatic winding and unwinding
assembly; and the unmanned aerial vehicle end of the water conveying hose is communicated with a spraying
assembly arranged at the bottom of the unmanned aerial vehicle. In the application, the unmanned aerial vehicle can continuously spray and maintain the high
pier in the
canyon without carrying a large-capacity water tank, the load of the unmanned aerial vehicle is reduced, the continuity and efficiency of the spraying operation are improved, fixed spraying pipelines, ladders, baskets or support frames do not need to be arranged outside the high
pier, high-altitude installation and removal operations are reduced, the water conveying hose can keep a proper unwinding length along with the lifting and movement of the unmanned aerial vehicle, and the hose is prevented from being too tightly pulled to the unmanned aerial vehicle or being too loosely swung and wound.