An anti-seismic and anti-loosening back rivet bolt and a connection structure for curtain wall panels

Abstract

The invention provides an anti-seismic and anti-loose back rivet bolt and curtain wallboard connecting structure. The anti-seismic and anti-loose back rivet bolt and curtain wallboard connecting structure is characterized in that a metal rivet rod of a back rivet bolt is provided with an anti-loose riveting section, the back rivet bolt is further provided with a fastening sleeve, the fastening sleeve compresses a connected member under the action of a tool, an inner hole of the fastening sleeve is contracted and tightly wraps the outside of the anti-loose riveting section, concave-convex inner hole surfaces which are matched with anti-loose grains on the surface of the anti-loose riveting section are formed simultaneously, so that the connected member can be permanently connected with the back rivet bolt without welding. The anti-seismic and anti-loose back rivet bolt and curtain wallboard connecting structure has the advantages that the connected member can be permanently and firmly connected with the back rivet bolt in an anti-loose manner without welding, the connection strength is greatly improved, seismic requirements can be met, and the anti-seismic and anti-loose back rivet bolt and curtain wallboard connecting structure is applicable to dry-hanging curtain walls of external building envelop structures, braking-impact-resistant subway stations and the like with high seismic requirements; mounting labor and the mounting cost can be saved by the aid of the anti-seismic and anti-loose back rivet bolt and curtain wallboard connecting structure; the fastening sleeve and the connected member have an anti-displacement positioning relation, so that increase of manufacturing burden is prevented, and the anti-seismic and anti-loose back rivet bolt and curtain wallboard connecting structure is good in service effect.

Description

technical field [0001] The invention relates to an anti-seismic loosening and anti-loosening back riveting bolt and a connection structure of a curtain wall panel. It is mainly suitable for the installation of dry-hanging panels in various buildings, and is riveted to the back of the panels, so it is called "back riveting bolt". Background technique [0002] At present, the back bolts used in the curtain wall of the building envelope are connected by bolts and screws. Due to the influence of hundreds of thousands of wind waves every year and external forces such as thermal expansion and contraction, the anchors will loosen; moreover, due to the current In order to prevent the screw from rotating, the back bolts of the screw rods are all equipped with an anti-slip boss at the bottom of the screw, but it often causes the expansion ring (piece) to be stretched when part of it is on the anti-slip boss, resulting in uneven force. affect its connection reliability. In order to p...

AI Technical Summary

Problems solved by technology

But as a back bolt with a diameter of only 6MM, it is difficult to complete the welding, especially when there are plastic parts in the back bolt, the high heat of welding will be applied to the plastic part along the metal part of the back bolt due to the heat conduction of the metal, causing it great influence

Moreover, with regard to the above-mentioned structure, when the nut is tightened, the rotation of the whole anchor bolt will also be caused.

Moreover, in screw manufacturing, due to the reason of the anti-slip boss, the mold of the heading machine often cracks, and the manufacturing cost increases

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