Driven wheel device used in inlet and outlet transmission device of cigarette storage and conveying equipment

The driven wheel device comprises a small supporting plate, an outer hinge block and an inner hinge block, supporting shafts are fixed to lug plates on the two sides of the upper end of the small supporting plate, and a rolling type driven wheel assembly arranged between the two lug plates is installed on the supporting shafts. The outer hinge block and the inner hinge block are located on the outer sides of the two lug plates respectively and fixed to the supporting shaft. By optimizing the structure of the driven wheel and adopting the rolling type driven wheel assembly which is installed on the supporting shaft and located between the two lug plates at the upper end of the small supporting plate, the outer wheel face of the rolling type driven wheel assembly is made to make contact with and support the cigarette conveying belt, and the load supporting capacity is effectively improved; the problem that the failure rate of a lower transmission device is high due to the fact that the bearing load of a driven