Cleaning device for fuel tank of engineering machinery

The utility model relates to a cleaning device for a fuel tank of engineering machinery, which is characterized in that a rack is provided with an oil pump; the oil inlet of the oil pump is connected with a filter and an oil inlet tube; the oil outlet of the oil pump is connected with an oil outlet tube; the rack is provided with a motor driving the oil pump; the motor is a fire proof motor; the oil pump is a scribing rotor oil pump; the filter is a 1300L/min direct oil return filter; the oil inlet tube and the oil outlet tube are aluminium plastic tubes capable of flexural deformation; and the ends of the oil inlet tube and the oil outlet tube are communicated with the fuel tank of engineering machinery. In the utility model, the self fuel oil of the fuel tank is used as the cleaning medium and the fuel tank is cleaned by adopting the cleaning circulating filtration method without disassembling the fuel tank, thus greatly lightening labor intensity and improving work efficiency; in addition, the cleaning dev