Special scratching device for microbial culture dish

The invention discloses a special scratching device for a microbial culture dish and relates to the technical field of medical instruments. The special scratching device comprises a base, wherein thetop of the base is slidingly connected with a sliding seat, a rotary rod is rotatably connected in the sliding seat, two sides of the inside of the sliding seat are rotatably connected with lead screws, the surfaces of the lead screws are in meshed connection with movable seats, the tops of the movable seats are fixedly connected with stopping blocks, one side of each stopping block is fixedly connected with a clamping block through a first compression device, the top of the base is vertically and fixedly connected with a supporting rod, the top of the supporting rod is fixedly connected witha fixing frame, two sides of the inner wall of the fixing frame are fixedly connected with sliding rods through a first sliding block and a second sliding block, the surface of the sliding rod is slidingly connected with a mov