Silencer

The utility model provides a silencer which includes that casing, at least part are located intake pipe and outlet duct in the casing, the casing includes and is used for supporting the intake pipe and / or at least one baffle of outlet duct, the casing is equipped with and is close to silencer's bottom discharge hole and with wash port matched with flexure strip, when wherein not having the exhaust stream to pass through in silencer, the flexure strip will the wash port is opened, when discharge pressure in silencer exceedes the confining force of flexure strip, the flexure strip takes placeto warp in order to plug up the wash port. So set up, can possess the drainage ability again under the condition that does not influence acoustic performance. 种消音器，其包括壳体、至少部分位于所述壳体内的进气管以及出气管，所述壳体包括用以支撑所述进气管及/或所述出气管的至少个隔板，所述壳体设有靠近所述消音器的底部排水孔以及与所述排水孔相配合的弹性片，其中当消音器中没有排气流通过时，所述弹性片将所述排水孔打开；当消音器中的排气压力超过弹性片的保持力时，所述弹性片发生变形以堵住所述排水孔。如此设置，在不影响声学性能的情况下又能具备排水性能。