The utility model relates to the field of biomedical experiment instruments, in particular to a device for fixing a culture
bottle, which comprises a base and two clamping arms, a groove is arranged in the middle of the base, the two clamping arms are movably connected to the inner side wall of the groove respectively, two threaded rods are in threaded connection with the side wall of the base, and the two threaded rods are connected with the base. First connecting seats are fixedly arranged on the inner side walls, close to the
threaded rod, of the clamping arms for the
threaded rod to rotate, and a
handle is fixedly arranged at the other end of the
threaded rod; compared with a traditional device used for fixing a culture
bottle, the culture
bottle fixing device is provided with the base, the clamping arm threaded rods, the first connecting base, the limiting rod, the second connecting base, the mounting base, the roll shaft and the
handle according to requirements, an experimenter places the culture bottle in the middle of the groove, the two threaded rods are driven to move in the opposite directions by rotating the
handle, and the culture bottle is fixed. The clamping arms can be respectively supported on the side wall of the culture bottle, and the roll shaft is matched with the second connecting seat and the mounting seat for supporting and limiting, so that the clamping stability and adaptability of the culture bottle are further improved.