A sound muffling device for a high pressure air blast gun used in medical facilities

Abstract

The utility model discloses a kind of sound attenuation devices for medical institutions high-pressure gas blow gun, it includes inner sleeve and outer sleeve that are sleeved together, two ends of inner sleeve and two ends of outer sleeve are sealedly connected together, one end of inner sleeve is air inlet, the other end is air outlet, air inlet is used to connect with the muzzle of high-pressure gas blow gun, sound attenuation layer is filled between inner sleeve and outer sleeve, the wall surface of inner sleeve is attached on sound attenuation layer, through-hole is set on the wall surface of inner sleeve.The utility model is used air inlet and high-pressure gas blow gun muzzle connection, after high-pressure gas enters into inner sleeve, through-hole on inner sleeve can make part of sound wave and a small amount of air flow leak into sound attenuation layer, sound attenuation layer can absorb part of air flow noise, to reduce the effect of noise.The utility model uses the combination of inner and outer double-layer shell plus sound absorption layer, manufacturing process is simple, connection is firm, installation is convenient, outer sleeve is used as outer shell to protect sound-absorbing material, avoid debris to fall off, meet the requirement of clean and safety for medical place.

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