Air cooling box capable of being automatically opened and closed

The utility model discloses an automatic opening and closing cold air box which comprises a box body and a box door, an automatic opening and closing device is arranged on the box door, the automatic opening and closing device comprises a support and driving mechanisms located at the upper end and the lower end of the support, each driving mechanism comprises a guide assembly and a telescopic assembly, and each guide assembly comprises a rail fixed to the support. The bottom of the sliding part is fixed to the box door, the telescopic assembly comprises two driving shafts and a driving air cylinder, the tail ends of the two driving shafts are rotationally matched with the output end of the driving air cylinder, the head end of one driving shaft extends to the support to be rotationally matched, and the tail end of the other driving shaft is rotationally matched with the output end of the driving air cylinder. When the output end of the driving air cylinder is in an extending state, the driving shafts are arra