Quick opening device for brush roll

The utility model discloses a brush roll quick opening device which comprises a supporting block, a rotating structure is installed on the supporting block, the rotating structure comprises two unfolding pieces and a limiting piece, the number of the unfolding pieces is two, the unfolding pieces are symmetrically distributed on the two sides with the center line of the supporting block as the center, and the limiting piece is arranged on the supporting block. The unfolding part comprises a rotating shaft, a connecting rod and a brush roller; the limiting piece comprises a screw and a nut; the rotating shaft is rotationally connected with the supporting block through the screw, the screw cap is connected to the screw in a sleeving mode, the connecting rod is installed on the rotating shaft, and the brush roller is installed on the connecting rod. The rotating shaft rotates on the supporting block through the screw at the same time, the brush roller on the connecting rod is rapidly opened or closed to adjust th