The T40 impeller pump protective cover is an original protective accessory for the T40/T20P/T50/T25 crop protection unmanned aerial vehicle magnetic drive impeller pump. 1、 Core positioning and adaptation Core positioning: impeller pump physical protection+signal line/pipeline regulation+anti-collision special cover, isolating pesticides, dust, and debris, protecting the pump body, motor, signal lines, and joints, while regulating pipeline routing and avoiding interference.