| 摘要 |
The present invention relates to an air injecting device for a balloon and, more specifically, to an air injecting device for a balloon, capable of smoothly coping with a change of the size of an air inlet according to the size of a balloon by changeably controlling a combination position of the air inlet of the balloon according to the size of the balloon while easily recognizing an air injection state by making a sound when air is injected into the balloon. The present invention includes a sound generating part combined with the inside of an inflow pipe or discharge pipe, and generating a sound by the air which flows into the inlet. |
