Construction beam

Abstract

A construction beam includes an elongated main body having two vertical walls, a top wall connected between top edges of the two vertical walls, two bottom walls respectively inward extending from bottom edges of the two vertical walls, and two upright walls upward extending from free edge of the bottom walls by a certain height. Multiple spacer assemblies are disposed between the two vertical walls of the main body to keep the vertical walls spaced from each other by a fixed distance. When mounting wooden bars on the beams, the wooden bars are secured to the main bodies by means of multiple fastening members for laying a moldboard on the wooden bars. Two beams can be axially connected with each other by means of a connection member to elongate the length of the beam.

What is claimed is: 
     
         1 . A construction beam, which is an elongated body, comprising:
 a main body, which is an elongated body having uniform cross-sectional shape, the main body including two vertical walls side by side arranged at a certain interval in parallel to each other; a top wall transversely connected between top edges of the two vertical walls; two bottom walls inward horizontally extending from bottom edges of the two vertical walls, and two upright walls upward extending from free edge of the bottom walls by a certain height;   multiple through holes formed through the two vertical walls of the main body; and   multiple spacer assemblies passing through the through holes of the two vertical walls of the main body, each of two ends of each spacer assembly being formed with an inner abutment section and an outer abutment section, the two inner abutment sections of the spacer assembly respectively abutting against inner faces of the two vertical walls, while the two outer abutment sections of the spacer assembly respectively abutting against outer faces of the two vertical walls.   
     
     
         2 . The beam as claimed in  claim 1 , wherein each spacer assembly is an elongated spacer member, the two inner and two outer abutment sections being respectively formed at two ends of the spacer member. 
     
     
         3 . The beam as claimed in  claim 1 , wherein each spacer assembly includes a spacer member and a restriction assembly, the spacer member being a tubular body having a passage; the restriction assembly having two ends and being passed through the through holes of the two vertical walls and the passage of the spacer member, two ends of the spacer member serving as the two inner abutment sections; two ends of the restriction assembly serving as the two outer abutment sections. 
     
     
         4 . The beam as claimed in  claim 3 , wherein the restriction assembly is composed of a bolt and a nut, the bolt having a head section, the head section of the bolt and the nut serving as the two outer abutment sections. 
     
     
         5 . The beam as claimed in  claim 3 , wherein the restriction assembly is a rivet, two ends of the rivet serving as the two outer abutment sections. 
     
     
         6 . The beam as claimed in  claim 1 , wherein multiple perforations are formed through the two vertical walls of the main body, the perforations are arranged in a longitudinal direction of the main body at equal intervals and near the top edges of the vertical walls. 
     
     
         7 . The beam as claimed in  claim 1 , wherein:
 multiple perforations are formed through the two vertical walls of the main body and arranged in a longitudinal direction of the main body; and further comprising:   a fastening member having a board body, two upright walls and two protrusion walls, the board body having at least four lateral sides, the two upright walls being disposed on a pair of lateral sides of the board body and upward extending from the board body, the board body and the two upright walls defining a receiving space; the two protrusion walls being disposed on the other pair of lateral sides of the board body and downward extending from the board body, each protrusion wall having at least one securing holes; the fastening member being disposed on the top wall of the main body; at least one connection bolt member being passed through the securing holes of the two protrusion walls of the fastening member and the perforations of the two vertical walls of the main body to connect the fastening member with the main body.   
     
     
         8 . The beam as claimed in  claim 1 , wherein the vertical wall, the bottom wall and the upright wall on the same side of the main body define therebetween a receiving space; the beam further comprising a connection member including a main body, which is a hollow elongated body and two vertical leg sections disposed under a bottom face of the main body; one end of the connection member extending into the main body of the beam with the two leg sections positioned in the two receiving spaces. 
     
     
         9 . The beam as claimed in  claim 2 , wherein the vertical wall, the bottom wall and the upright wall on the same side of the main body define therebetween a receiving space; the beam further comprising a connection member including a main body, which is a hollow elongated body and two vertical leg sections disposed under a bottom face of the main body; one end of the connection member extending into the main body of the beam with the two leg sections positioned in the two receiving spaces. 
     
     
         10 . The beam as claimed in  claim 3 , wherein the vertical wall, the bottom wall and the upright wall on the same side of the main body define therebetween a receiving space; the beam further comprising a connection member including a main body, which is a hollow elongated body and two vertical leg sections disposed under a bottom face of the main body; one end of the connection member extending into the main body of the beam with the two leg sections positioned in the two receiving spaces. 
     
     
         11 . The beam as claimed in  claim 7 , wherein the vertical wall, the bottom wall and the upright wall on the same side of the main body define therebetween a receiving space; the beam further comprising a connection member including a main body, which is a hollow elongated body and two vertical leg sections disposed under a bottom face of the main body; one end of the connection member extending into the main body of the beam with the two leg sections positioned in the two receiving spaces. 
     
     
         12 . The beam as claimed in  claim 1 , wherein:
 at least two connection holes are formed through the two vertical walls of the main body and near two ends of the main body respectively; and   the vertical wall, the bottom wall and the upright wall on the same side of the main body define therebetween a receiving space; the beam further comprising a connection member including a main body, which is a hollow elongated body and at least one connection component having two vertical leg sections and a top board connected between the two leg sections; the connection component being fixedly disposed under a bottom face of the main body; at least two apertures being transversely formed through two lateral walls of the connection member and near two ends of the connection member respectively; one end of the connection member extending into the main body of the beam; at least one threaded assembly being passed through the apertures of one end of the connection member and the connection holes of one end of the main body of the beam to connect the connection member with the main body.   
     
     
         13 . The beam as claimed in  claim 2 , wherein:
 at least two connection holes are formed through the two vertical walls of the main body and near two ends of the main body respectively; and   the vertical wall, the bottom wall and the upright wall on the same side of the main body define therebetween a receiving space; the beam further comprising a connection member including a main body, which is a hollow elongated body and at least one connection component having two vertical leg sections and a top board connected between the two leg sections; the connection component being fixedly disposed under a bottom face of the main body; at least two apertures being transversely formed through two lateral walls of the connection member and near two ends of the connection member respectively; one end of the connection member extending into the main body of the beam; at least one threaded assembly being passed through the apertures of one end of the connection member and the connection holes of one end of the main body of the beam to connect the connection member with the main body.   
     
     
         14 . The beam as claimed in  claim 3 , wherein:
 at least two connection holes are formed through the two vertical walls of the main body and near two ends of the main body respectively; and   the vertical wall, the bottom wall and the upright wall on the same side of the main body define therebetween a receiving space; the beam further comprising a connection member including a main body, which is a hollow elongated body and at least one connection component having two vertical leg sections and a top board connected between the two leg sections; the connection component being fixedly disposed under a bottom face of the main body; at least two apertures being transversely formed through two lateral walls of the connection member and near two ends of the connection member respectively; one end of the connection member extending into the main body of the beam; at least one threaded assembly being passed through the apertures of one end of the connection member and the connection holes of one end of the main body of the beam to connect the connection member with the main body.   
     
     
         15 . The beam as claimed in  claim 7 , wherein:
 at least two connection holes are formed through the two vertical walls of the main body and near two ends of the main body respectively; and   the vertical wall, the bottom wall and the upright wall on the same side of the main body define therebetween a receiving space; the beam further comprising a connection member including a main body, which is a hollow elongated body and at least one connection component having two vertical leg sections and a top board connected between the two leg sections; the connection component being fixedly disposed under a bottom face of the main body; at least two apertures being transversely formed through two lateral walls of the connection member and near two ends of the connection member respectively; one end of the connection member extending into the main body of the beam; at least one threaded assembly being passed through the apertures of one end of the connection member and the connection holes of one end of the main body of the beam to connect the connection member with the main body.   
     
     
         16 . The beam as claimed in  claim 12 , wherein the apertures of the connection member are formed through the main body of the connection member.