Heat expansion and cold contraction limiting rivet bolt and connecting structure

Abstract

The invention provides a heat expansion and cold contraction limiting rivet bolt and a connecting structure; a first part and a second part are connected together; the rivet bolt is provided with a fastening sleeve; the metal rivet pole of the rivet bolt is provided with an anti-loosening riveting section; the fastening sleeve compresses the first part under the action of a tool, and the inner hole of the fastening sleeve contracts and is wrapped outside the anti-loosening riveting section and meanwhile concave and convex inner hole surfaces which are matched with anti-loosening stripes on the anti-loosening riveting section are formed, and permanent connection which does not need to be welded is formed; the metal rivet pole is in a step shape, the height, relative to the convex head of the metal rivet pole, of a thicker part of the step shape corresponds to the thickness, which is penetrated through by the metal rivet pole, of the second part; an anti-slip positioning structure is also introduced on the fastening sleeve. According to the rivet bolt, the permanent and firm connection without loosening can be realized without welding, so the connection strength is greatly improved, the anti-seismic needs are met, and manpower and cost can be saved. The rivet bolt can realize firm connection, and makes one object which needs to be connected have the heat expansion and cold contraction displacement capability.

Description

technical field [0001] The invention relates to a thermal expansion and cold contraction limiting riveting bolt and a connection structure, which are mainly suitable for the riveting of various building curtain walls and various products with high requirements for earthquake resistance and precision. It is especially suitable for the use of curtain walls of building envelopes with high requirements for anti-vibration, anti-slip, and anti-loosening. Background technique [0002] At present, the anchor bolts used in the curtain wall of the building envelope are affected by hundreds of thousands of wind waves and thermal expansion and contraction every year, which will cause the anchors to loosen and the gap between the connecting holes to sag, resulting in accidents. Therefore, in order to prevent the bolts from loosening and the gap between the connecting holes from sagging, the national regulations require that the screw, gasket, nut and the connecting anchor plate be welded...

AI Technical Summary

Problems solved by technology

[0002] At present, the anchor bolts used in the curtain wall of the building envelope are affected by external forces such as hundreds of thousands of wind waves and thermal expansion and contraction every year, which will cause the anchors to loosen and the gap between the connecting holes to sag, resulting in accidents.

Therefore, in order to prevent the bolts from loosening and the gap between the connecting holes from sagging, the national regulations require that the screw, gasket, nut and the connecting anchor plate be welded to death. However, this welding on the construction site is not only difficult, but also exists Potential safety hazards of desoldering caused by welding on several different materials

[0003] And this kind of connection structure will make the parts that need to have the displacement of thermal expansion and contraction be fixed, so that thermal expansion and cold contraction will not be possible, which will cause hidden dangers to the safety of long-term use

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