The utility model relates to the technical field of
medical treatment and laboratories, and discloses an automatic shaking device which is characterized in that a rotating shaft is rotatably connected to the inner side of a support frame and is positioned above a second
synchronizing wheel, the top of the rotating shaft is fixedly connected with a third
synchronizing wheel, one side of a base is provided with a first motor, and an output shaft of the first motor is fixedly connected with a fourth
synchronizing wheel; the output shaft of the first motor drives the fourth synchronous wheel to rotate forwards and backwards, the fourth synchronous wheel drives the first synchronous wheel to rotate through the synchronous belt, and meanwhile the first synchronous wheel can drive the second synchronous wheel to rotate through the first fixing shaft, so that the second synchronous wheel drives the third synchronous wheel to rotate through the synchronous belt. The third synchronizing wheel drives the base on the side plate to rotate through the rotating shaft, so that the sample is shaken up without manual shaking up, the labor intensity of personnel is reduced, the sample shaking-up quality is improved, and meanwhile, the sample shaking-up efficiency is improved.