Automatic sterilization device for plastic infusion bottle

The invention belongs to the technical field of disinfection and sterilization, and particularly relates to an automatic sterilization device for a plastic infusion bottle. The problem that disinfection is not thorough in the prior art is solved. The device comprises a fastening mechanism and a rotating mechanism, the fastening mechanism comprises a sleeving shell and an adjusting module; the first path of air flow flows to a gap between the rotating module and the bottom of the bottle body, and sterilizes and disinfects the bottom of the bottle body; and the second path of airflow flows to the bottle body clamped in the sleeving shell from top to bottom, and is used for sterilizing the outer surface and the interior of the bottle body. The fastening mechanism clamps and fixes the bottle body through the roller in the soft sleeve, and when the rotating module drives the bottle body to rotate, the fixing position can be changed, so that the side wall of the bottle body can be completely covered by airflow; the