Expandable tray for clinical laboratory

The utility model discloses an expandable tray for clinical laboratory, which comprises a tray main body, the front end of the inside of the tray main body is fixedly connected with a mounting frame, the front end of the outside of the tray main body is provided with a protective cover plate, the rear end of the inside of the tray main body is provided with a second sliding rail, the inside of the tray main body is provided with an expansion disc, and the expansion disc is provided with a second sliding rail. A second handle is fixedly connected to the center of one side of the expansion disc, a sliding plate is fixedly connected to the rear end of the expansion disc, and the sliding plate is in sliding connection with the second sliding rail. According to the expandable tray for the clinical laboratory, by arranging the expansion disc, the second sliding rail, the sliding groove, the second handle and the sliding plate, the placing space is not occupied, the size is small, the operation steps are simplified,