Device for controlling amount of liquid material

The utility model relates to a device for controlling the amount of a liquid material, which comprises a step ladder, armrests, a quadrate shelf and a metering control instrument, wherein the step ladder is provided with gradually bottom-up pedals, the two sides of the step ladder are respectively provided with an armrest, the lower end of the step ladder is provided with a universal wheel group A, the upper end of the step ladder is connected with the quadrate shelf, and the step ladder is inclined at 75 degrees; the two sides of the quadrate shelf are respectively connected with the step ladder and the metering control instrument, and the quadrate shelf is provided with a universal wheel group B; the metering control instrument is vertically arranged at the side edge of the quadrate shelf, and a main body of the metering control instrument is composed of a graduated scale, an interface cup, a hose, a volumetric cup, a valve and a flange connector; the graduated scale is vertically arranged in the volumetric cup, an inlet and outlet of the volumetric cup are respectively formed at the top end and tail end of the volumetric cup, the tail end of the volumetric cup is communicated with the interface cup, and the flange connector is arranged between the volumetric cup and the interface cup; and the volumetric cup, the interface cup, the valve and the hose are sequentially communicated in series. The device disclosed by the utility model has the advantages of simple structure, practical function, accurate metering, reliable performance, and low cost.