The invention discloses an automatic liquid chemical filling
machine of a
plant protection unmanned plane. The automatic liquid chemical filling
machine comprises a water feeding device, a storage device, a
chemical tank device and a liquid outlet device. The water feeding device comprises a water sucking
pipe, a
micro pump and a program-controlled controller. The storage device comprises a box and a stirring mechanism arranged in the box. The liquid outlet device comprises an intelligent driver, a guide
pipe and a quantifier filling device. The water sucking
pipe is connected with an external water tank. The program-controlled controller controls the
micro pump to pump water into the box of the storage device. The stirring mechanism stirs liquid chemicals, addition agents and water added into the box, so that mixed liquid is formed. The mixed liquid is driven by the intelligent driver to enter the guide pipe. The quantifier filling device is provided with an oil injection
nozzle, a quantifier and a switch controlling the oil injection
nozzle. The quantifier filling device controls the oil injection
nozzle to stop adding liquid when the quantity of liquid chemicals added into a
chemical tank of the unmanned plane reaches a specific level. The specification of the added liquid chemicals is adjusted at any time by additionally arranging the intelligent driver, waste of the liquid chemicals in the filling process is avoided, the automatic liquid chemical filling
machine is simple and practical, and manpower and
material resources are greatly saved.