Low-wind-resistance rainproof silencer for chimney

Abstract

The present invention relates to a low-wind-resistance rainproof silencer for chimney, which includes: a main body, formed with a hollow chamber, two lateral walls of the main body are respectively filled with a sound absorbing material, and inner sides of the two lateral walls are respectively formed with a first sound absorbing surface; a water collecting disc, formed in a conical status and disposed in the hollow chamber, formed with a rain blocking plate having a third opening with the bottom being connected to a water discharging pipe; and a base tube; accordingly, rainwater is able to be collected by the rain blocking plate and discharged out of the main body through the water discharging pipe; airflow discharged by the chimney is able to be silenced by the first sound absorbing surfaces thereby achieving a sound silencing effect.

What is claimed is: 
     
         1 . A low-wind-resistance rainproof silencer for chimney, including:
 a main body, formed with a hollow chamber, one end of said hollow chamber being formed with a first opening, the other end thereof being formed with a second opening;   a water collecting disc, formed in a conical status and disposed in said hollow chamber, the top thereof being formed with a rain blocking plate, said rain blocking plate being formed with a third opening, the bottom of said third opening being connected to a water discharging pipe, one end section of said water discharging pipe being exposed outside said main body through said second opening, wherein the cross section area of said rain blocking plate is larger than the cross section area of said first opening; and   a base tube, disposed at the bottom of said main body and connected to said main body through said second opening, another end of said base tube being connected to a chimney;   accordingly, rainwater being able to be collected by said rain blocking plate and discharged out of said main body through said water discharging pipe.   
     
     
         2 . The low-wind-resistance rainproof silencer for chimney as claimed in  claim 1 , wherein the cross section area of said first opening is the same as the cross section area of said second opening, and the cross section area of said rain blocking plate is 1.2 times larger than the cross section area of said first opening. 
     
     
         3 . The low-wind-resistance rainproof silencer for chimney as claimed in  claim 1 , wherein two lateral walls of said main body are respectively filled with a sound absorbing material, and inner sides of said two lateral walls are respectively formed with a first sound absorbing surface, airflow discharged by said chimney is able to be silenced by said first sound absorbing surfaces thereby achieving a sound silencing effect, wherein said sound absorbing material is sound absorbing cottons. 
     
     
         4 . The low-wind-resistance rainproof silencer for chimney as claimed in  claim 1 , wherein said first sound absorbing surface is formed with a plurality of micro holes, said micro holes are able to guide the airflow discharged by said chimney into said sound absorbing material thereby achieving a sound silencing effect. 
     
     
         5 . The low-wind-resistance rainproof silencer for chimney as claimed in  claim 4 , wherein said rain blocking plate is formed in a conical status, and inclined towards the center for enhancing the rainwater collecting performance. 
     
     
         6 . The low-wind-resistance rainproof silencer for chimney as claimed in  claim 1 , wherein beside the space occupied by said water discharging pipe, said water collecting disc is filled with a sound absorbing material, and two sides of said water collecting disc are respectively formed with a second sound absorbing surface, wherein said sound absorbing material is sound absorbing cottons. 
     
     
         7 . The low-wind-resistance rainproof silencer for chimney as claimed in  claim 6 , wherein said second sound absorbing surface is formed with a plurality of micro holes, said micro holes are able to guide the airflow discharged by said chimney into said sound absorbing material thereby achieving the sound silencing effect. 
     
     
         8 . The low-wind-resistance rainproof silencer for chimney as claimed in  claim 1 , wherein two sides of said water collecting disc and said main body are respectively formed with a first passageway and a second passageway. 
     
     
         9 . The low-wind-resistance rainproof silencer for chimney as claimed in  claim 1 , further including a securing rack disposed between said main body and said base tube, said securing rack is formed in a hollow status, thereby allowing the rainwater to pass said first passageway and said second passageway and flow downwardly so as to be discharged out of said main body through said securing rack. 
     
     
         10 . The low-wind-resistance rainproof silencer for chimney as claimed in  claim 1 , further including an engaging flange disposed between said base tube and said chimney.