Track beam structure

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.