Silencer

The utility model provides a silencer which includes the casing and is located main entrance pipe in the casing, the casing is equipped with the tuning chamber, the tuning chamber is sealed cavity, the main entrance pipe passes the tuning chamber. The wall of main entrance pipe be equipped with with the volume adjustment hole that the tuning chamber is linked together. The utility model disclosesa set up volume adjustment hole and replace traditional pitch pipe, under the circumstances of guaranteeing tuning efficiency, simple structure, manufacturing cost is lower. 种消音器，其包括壳体以及位于所述壳体内的主通道管，所述壳体设有调音腔，所述调音腔为封闭腔体，所述主通道管穿过所述调音腔。所述主通道管的壁面设有与所述调音腔相连通的调音孔。本实用新型通过设置调音孔来取代传统的调音管，在保证调音效率的情况下，结构简单，生产成本较低。