Vibration reduction device of muffler tail-pipe for construction equipment

Abstract

The present invention relates to a vibration reduction device of a muffler tail-pipe for construction equipment, comprising: an engine hood provided to one side of an engine room for the protection of the peripheral parts including an engine and a muffler, and having a through hole at one side of the top surface thereof; the muffler provided to the lower portion of the engine hood in a state where the muffler is connected to one side of the engine; a tail-pipe of which one end is connected to the muffler and the other end is protruded to the outside by penetrating the through hole of the engine hood; and a plurality of elastic support parts for fixing the tail-pipe such that the tail-pipe is elastically supported by the engine hood. The present invention can maximally reduce the vibration transmitted to the tail-pipe by the elastic support means when the tail-pipe vibrates with the muffler due to the vibration of the muffler by the engine, as the tail-pipe connected to the muffler is elastically supported from the engine hood through the elastic support parts. Therefore, the present invention can solve the problem of the connection portion of the muffler and the tail-pipe being easily deformed or damaged by the concentration of the stress to the connection portion of the muffler and the tail-pipe as the tail-pipe vibrates with the muffler according to the vibration of the muffler.

What is claimed is: 
     
         1 . An apparatus for reducing vibration of a muffler tailpipe for a construction machine, comprising:
 an engine hood installed at one side of an engine room to protect peripheral components including an engine and a muffler and having a through-hole formed at one side of a top surface thereof;   a muffler installed at a lower portion of the engine hood in such a manner as to be connected to one side of the engine, and a tailpipe connected at one end thereof to the muffler and projected at the other end thereof to the outside of the engine hood through the through-hole of the engine hood; and   a plurality of elastic supports configured to fix the tailpipe so that the tailpipe is elastically supported by the engine hood.   
     
     
         2 . The apparatus for reducing vibration of a muffler tailpipe according to  claim 1 , wherein the elastic support comprises:
 a fixing member installed on an outer circumference of the tailpipe;   a plurality of connection holes formed at a peripheral portion of the through-hole of the engine hood; and   a plurality of elastic members configured to connect the fixing member and the connection holes to each other and arranged radially around the tailpipe.   
     
     
         3 . The apparatus for reducing vibration of a muffler tailpipe according to  claim 1 , wherein the elastic support portion comprises:
 a fixing member installed on an outer circumference of the tailpipe;   a plurality of fixtures formed at a peripheral portion of the through-hole of the engine hood; and   a plurality of elastic members configured to connect the fixing member and the fixtures to each other and arranged radially around the tailpipe.   
     
     
         4 . The apparatus for reducing vibration of a muffler tailpipe according to  claim 2 , wherein the fixing member is formed by shearing a portion thereof to form two ends so that the two ends of the sheared portion are fastened to each other by means of a fastening member, and includes a plurality of retaining portions formed on an outer circumference thereof, and
 wherein each of the elastic member includes a pair of opposed hooks formed at both ends thereof in such a manner that one of the hooks is fixed to an associated one of the retaining portions, and the other of the hooks is fixed to an associated one of the connection holes of the engine hood.   
     
     
         5 . The apparatus for reducing vibration of a muffler tailpipe according to  claim 3 , wherein the fixing member is formed by shearing a portion thereof to form two ends so that the two ends of the sheared portion are fastened to each other by means of a fastening member, and includes a plurality of retaining portions formed on an outer circumference thereof, and
 wherein each of the elastic member includes a pair of opposed hooks formed at both ends thereof in such a manner that one of the hooks is fixed to an associated one of the retaining portions, and the other of the hooks is fixed to an associated one of the fixtures of the engine hood.   
     
     
         6 . The apparatus for reducing vibration of a muffler tailpipe according to  claim 4 , wherein the hooks formed at the both ends of each elastic member are directly fittingly coupled to an associated one of the retaining portions and an associated one of the connection holes, or are indirectly coupled to the associated one of the retaining portions and the associated one of the connection holes through fastening members. 
     
     
         7 . The apparatus for reducing vibration of a muffler tailpipe according to  claim 5 , wherein the hooks formed at the both ends of each elastic member are directly coupled to an associated one of the retaining portions and an associated one of the fixtures, or are indirectly coupled to the associated one of the retaining portions and the associated one of the fixtures through fastening members. 
     
     
         8 . The apparatus for reducing vibration of a muffler tailpipe according to  claim 2 , wherein the elastic member comprises a spring that undergoes tension and compression. 
     
     
         9 . The apparatus for reducing vibration of a muffler tailpipe according to  claim 3 , wherein the elastic member comprises a spring that undergoes tension and compression.