Balloon, cap structure of balloon, balloon storage box and balloon vending machine

摘要

The invention is to provide a balloon cap structure that permits automatic inflation of a balloon with gas; a balloon that is provided with the cap structure and can be prevented from flying away after being inflated with gas for buoyancy; a balloon storage box for storing such balloons; and a balloon vending machine from which the balloons can be automatically dispensed one by one for distribution or for sale.