Plant protection unmanned aerial vehicle with electromagnetic flow meter

The utility model belongs to the technical field of unmanned aerial vehicle equipment, and particularly relates to a plant protection unmanned aerial vehicle with an electromagnetic flowmeter, which comprises an unmanned aerial vehicle body, side wings arranged on two sides of the unmanned aerial vehicle body, side propellers arranged at the tops of the side wings, an empennage arranged at the tail of the unmanned aerial vehicle, a tail propeller arranged on the empennage and a protection box arranged at the bottom of the unmanned aerial vehicle body. A clamping block is arranged at the top of the protection box, a clamping groove is formed in the top of the clamping block, and a rectangular block is arranged in the clamping block. According to the utility model, the limiting rod is popped out through resetting, the inner wall of the clamping groove is fixed, the clamping block is pulled out only by force during disassembly, and the effect that the protection box is convenient to assemble and disassemble can