Mechanical freezing-proof device for spraying disinfecting liquid

The utility model relates to an antifreeze technical field, provides a mechanical antifreeze device for sprinkling disinfection liquids in winter in an extremely cold area, which is composed of an upright post and an antifreeze mechanical device. The upright post is a disinfection working terminal which uses a steel pipe as a framework and has a stainless steel cover, the post is internally arranged with two rows of upriver pipelines which are respectively arranged with a group of nozzles; the antifreeze device is composed of a sluice box, an upriver electromagnetic valve, a sluice electromagnetic valve, a drain electromagnetic valve, a vacuum air pump and a pressure controller. The utility model has the beneficial effects of that the utility model can preventatively disinfect the vehicles which enter and exit from the infected area in the extremely cold area and forcibly disinfect aiming at a certain epidemic situation all the year round and all the time, which saves labors and has a high efficiency.