Automatic blood culture instrument

The utility model discloses an automatic blood culture instrument which comprises a supporting frame and a rocker driving mechanism which is provided with a fixed end connected with the supporting frame and at least two driving ends arranged side by side from top to bottom. The heat preservation box is arranged on the front side of the rocker driving mechanism, a box cover is arranged on the front side of the heat preservation box, and first and second mounting holes are formed in the rear side wall. The incubation frames are arranged in the heat preservation box, the two ends of each incubation frame are hinged to the left side wall and the right side wall of the heat preservation box respectively, and meanwhile the incubation frames are fixedly connected with the driving ends of the rocker driving mechanism; the heating element is arranged on the outer surface of the incubation frame; the cooling element comprises a semiconductor chilling plate arranged at the small end of the second mounting hole, a cold e