Support beam

Abstract

A support beam that has a single cross-section including two vertical walls which are spaced by a certain distance; a top wall transversely connected with top edges of the vertical walls; a recessed space inward recessed from the top wall, two vertical sidewalls of the recessed space being respectively spaced from the two vertical walls by a certain distance; two bottom walls respectively horizontally disposed at bottom ends of the vertical walls; and multiple through holes being axially along the beam formed on the bottom wall of the recessed space. Accordingly, the beam has a better structural strength.

1 . A support beam which has a single cross-section including: 
 two vertical walls which are parallel to each other and spaced by a certain distance;    a top wall transversely connected with top edges of the vertical walls;    a recessed space inward recessed from the top wall, two vertical sidewalls being formed on two sides of the recessed space, the sidewalls being respectively spaced from the two vertical walls by a certain distance;    two bottom walls respectively horizontally disposed at bottom ends of the vertical walls; and    a predetermined number of through holes being axially along the beam formed on the bottom wall of the recessed space.    
   
   
       2 . The support beam as claimed in  claim 1 , wherein the bottom walls inward extend from the bottom ends of the vertical walls; further including two erect walls respectively upward extending from free edges of the bottom walls.  
   
   
       3 . The support beam as claimed in  claim 2 , wherein the erect walls are respectively vertically aligned with the sidewalls of the recessed space.  
   
   
       4 . The support beam as claimed in  claim 1 , further comprising a predetermined number of reinforcing portions disposed on the vertical walls.  
   
   
       5 . The support beam as claimed in  claim 4 , wherein each the reinforcing portion is a dent.  
   
   
       6 . The support beam as claimed in  claim 4 , wherein each the reinforcing portion is a projection.  
   
   
       7 . The support beam as claimed in  claim 1 , wherein each the through hole is a long hole, the longitudinal of the holes being along with the longitudinal of the beam.  
   
   
       8 . The support beam as claimed in  claim 1 , wherein the bottom walls inward extend from the bottom ends of the vertical walls; further comprising a connecting member having a rectangular tube, at least an upright board being fixed on each side of the rectangular tube, one end of the connecting member being fitted in the beam with the top end and bottom end of each upright board respectively abutting against the top wall and bottom wall of the beam.  
   
   
       9 . The support beam as claimed in  claim 8 , wherein each end of the beam is formed with a transverse hole passing through the vertical walls; a transverse hole being formed on each end of the connecting member; a screwing member being screwed through the holes of the beam and the connecting member.