Track beam structure

Abstract

A track beam structure includes a track body, a fixing plate and a rotatable handle. The track body has first hooking members and is detachably coupled to a structural body. The fixing plate has a plurality of second hooking members coupled to the first hooking members. The rotatable handle includes a rotatable portion, a handle, and a tightening surface and a releasing surface arranged peripherally thereon. The rotatable handle is disposed on the fixing plate adjacent to track body. A distance between a rotating center of second pivotable portion and tightening surface is larger than a shortest distance between the rotating center and track body, and the shortest distance between the rotating center and track body is larger than a distance between the rotating center and releasing surface. The track beam structure can provide adjustments to the relative position of a load bearing body on the track body.

What is claimed is: 
     
         1 . A track beam structure disposed a structural body, comprising:
 a track body having a plurality of first hooking members arranged on a first surface thereof, the track body detachably coupled to the structural body;   at least one fixing plate having a plurality of second hooking members and a first pivotable portion arranged thereon, the second hooking members correspondingly coupled to the first hooking members, the first pivotable portion protruding from a side of the track body; and   at least one rotatable handle including a rotatable portion and a handle connected to the rotatable portion, the rotatable portion has a second pivotable portion, the rotatable handle having a tightening surface and a releasing surface arranged peripherally with respect to the rotatable handle, the rotatable handle is pivotally connected to the first pivotable portion via the second pivotable portion, the rotatable handle is disposed on a surface of the fixing plate adjacent to the track body;   wherein the second pivotable portion has a rotating center, a distance between the rotating center of the second pivotable portion and the tightening surface is larger than a shortest distance between the rotating center of the second pivotable portion and the track body, and the shortest distance between the rotating center of the second pivotable portion and the track body is larger than a distance between the rotating center of the second pivotable portion and the releasing surface.   
     
     
         2 . The track beam structure as recited in  claim 1 , wherein the track body further has a plurality of third hooking member arranged thereon and oppositely oriented with respect to the first hooking member. 
     
     
         3 . The track beam structure as recited in  claim 2 , wherein each of the first hooking members, second hooking members, and third hooking members has an end, each end has an undercut portion formed thereat. 
     
     
         4 . The track beam structure as recited in  claim 1 , wherein the rotatable portion has a peripheral surface, the tightening surface and the releasing surface are respectively arranged on opposite sides of the peripheral surface. 
     
     
         5 . The track beam structure as recited in  claim 4 , wherein the tightening surface is an arced surface, and the releasing surface is a planar surface. 
     
     
         6 . The track beam structure as recited in  claim 1 , wherein the track body has a plurality of fixing grooves arranged on a second surface opposite the first surface, each fixing groove has a coupling plate fastened thereon. 
     
     
         7 . The track beam structure as recited in  claim 1 , wherein the track body has a plurality of first openings arranged thereon, the track body is fastened to the structural body via the first openings. 
     
     
         8 . The track beam structure as recited in  claim 1 , wherein two fixing plates and two rotatable handles are provided, each fixing plate has a plurality of second openings arranged thereon for fastening a load bearing body. 
     
     
         9 . The track beam structure as recited in  claim 1 , wherein the handle has an end distal to the rotatable portion, the end has a bent arranged thereat, and the bent has a plurality of protrusions arranged thereon. 
     
     
         10 . The track beam structure as recited in  claim 9 , wherein the bent has an opening arranged thereon, and the opening has a cord passing therethrough. 
     
     
         11 . The track beam structure as recited in  claim 1 , wherein the rotatable handle is integrally formed and flexible.