The invention discloses an internally connected type
scaffold fastening and a connecting structure thereof. The internally connected type
scaffold fastening comprises a gap connecting plate, wherein the two ends of the gap connecting plate are connected to internally sleeved plates respectively in a perpendicular mode, outer plates are fixed and welded on the outer side faces of the two internally sleeved plates respectively, one pages of the outer plates are welded and fixed, the other pages of the outer plates can swing, the two internally sleeved plates are provided with screw holes and adjustable bolts respectively, and the end parts of the adjustable bolts correspond to the side faces of the pages, which can swing, of the outer plates. According to the internally connected type
scaffold fastening and the connecting method thereof, quick and stable connection is achieved, the construction speed is fast, and the effect is good. The side face of a high strength concave-convex groove square rectangular
pipe or circular rectangular
pipe connecting structure is provided with a dent groove opening which is bent and molded, the inner part of the groove opening is provided with an inner part slide rail of which the direction is the same with the direction of the groove opening and the breadth is larger than that of the groove opening, and the inner slide rail is bent and molded. According to the structural design, the
inertia moment can be sharply improved, and thus the bending resistant and torsion resistant strength of the square rectangular
pipe is improved.