Sample preparation device for food safety detection

The utility model relates to the technical field of food safety detection, and discloses a sample preparation device for food safety detection, which comprises a cup body, the surface of the cup body is in threaded connection with a cup cover, the upper surface of the cup cover is fixedly connected with a support frame, and the inner wall of the support frame is fixedly connected with a driving motor. A rotating shaft is fixedly connected to the output end of the driving motor, a through hole is formed in the upper surface of the cup cover, bearings are fixedly connected to the inner wall of the through hole and the surface of the rotating shaft, a limiting plate is fixedly connected to the surface of the rotating shaft, and the limiting plate is located in the cup body; and supporting plates are attached to the bottom of the limiting plate and the surface of the rotating shaft. Through cooperation of the limiting plate, the supporting plate, the limiting column, the sliding groove, the first groove, the seco