AIR BLOWING NOISE SUPPRESSER FOR AIRLINE-HOOD

摘要

PURPOSE: An air blowing noise suppresser for an airline-hood is provided to minimize impacts applied from the outside and to reduce the noise outside drastically when fresh air is supplied to the top of a protective helmet, a welding surface, and a protective surface etc. CONSTITUTION: An air blowing noise suppresser for an airline-hood includes the following: a circular tube(200); a sound-absorbing material composed inside the circular tube; a compression part(110) fixed to reduce the circular tube is swelled when high pressure air is injected inside the circular tube; and a supply hose(130) composed between the circular tube and the sound-absorbing material. When the air is injected, the air is discharged to an outlet on the bottom edge. The circular tube comprises an air channel by contacting an edge(140) with the air channel through high frequency.