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Fire-proofing shock-resisting loss-preventing undercut anchor and connecting structure thereof

An anti-loosening riveting and anti-loosening technology, applied in the directions of fire prevention, shockproof, building components, etc., can solve the problems of sagging connection hole gap, hidden safety hazards of de-soldering, and difficult work, so as to increase the connection strength and meet the earthquake resistance. Requirement, saving the effect of installation labor

Inactive Publication Date: 2013-11-27
斯泰科技(杭州)有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the anchor bolts of the existing technology used in the curtain wall of the building envelope, due to the impact of hundreds of thousands of wind waves and thermal expansion and contraction every year, 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

Method used

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  • Fire-proofing shock-resisting loss-preventing undercut anchor and connecting structure thereof
  • Fire-proofing shock-resisting loss-preventing undercut anchor and connecting structure thereof
  • Fire-proofing shock-resisting loss-preventing undercut anchor and connecting structure thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1, with reference to attached figure 1 , 2 .

[0032] An anti-shock and anti-loosening bottom cut rivet provided by the present invention includes a metal rivet 1, a sleeve 2, and an expansion part 3. The expansion part 3 is located at the bottom of the metal rivet 1, and the expansion part 3 can be pressed forward The sleeve 2 enables the expansion part 3 to expand into the undercut of the connection hole in the base under the action of the conical head 10 of the metal rivet rod. The base is a building or other basic structure that needs to be installed with building appendages, that is, connected parts, and the building or other basic structure is generally a concrete structure.

[0033] Such as figure 1 As shown, the expansion part 3 can be integrated with the sleeve 2, and the expansion part is generally in the shape of multiple pieces arranged along the circumference of the sleeve with gaps between the pieces. Such as figure 2 As shown, the expansi...

Embodiment 2

[0038] Embodiment 2, with reference to attached image 3 .

[0039] The difference between this embodiment and Embodiment 1 is that the expansion part 3 is inverted, and by pressing the sleeve 2 forward, the expansion part 3 is deformed and expanded to expand into the undercut of the connection hole in the base, and Creates a barb fit in the undercut. Other parts of this embodiment are the same as Embodiment 1, in image 3 In the drawings, the same reference numerals represent the same meaning.

Embodiment 3

[0040] Embodiment 3, with reference to Figure 4 .

[0041] The connection structure of a building accessory provided by the present invention has a connecting hole 101 on the base 100 on which the building accessory 200 needs to be installed, and the connecting hole 101 has an undercut 102 matched with the expansion part. In this embodiment , the bottom cut rivet connected by the connection hole 101, in addition to the expansion part 3 at the bottom of the metal rivet rod 1, there is also an expansion part 3 in the middle of the metal rivet rod 1, as long as the expansion part 3 in the middle is pushed to the front sleeve The barrel 2 is constantly pressed, so that the expansion part 3 in the middle can be expanded as in the undercut 102 matched with it.

[0042] The building appendage 200 is a connected part, which is located between the fastening sleeve 4 and the base 100. The connected part has a hole 201 for the metal riveting rod to pass through, and is set outside the ...

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PUM

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Abstract

The invention provides a fire-proofing shock-resisting loss-preventing undercut anchor and a connecting structure thereof. A metal anchor rod of the undercut anchor comprises a loss-preventing anchoring segment. The undercut anchor further comprises a fixing sleeve; by the affection of a tool, the fixing sleeve is pressed against a connecting part, an inner hole of the fixing sleeve is tightened and wrapped outside the loss-preventing anchoring segment, and a bumpy inner-hole surface matching with loss-preventing lines on the surface of the loss-preventing anchoring segment is formed simultaneously; permanent connection is formed and welding is emitted. The front end of the fixing sleeve is provided with a convex ring or a projection which is extruded into a clearance between the wall of a hole, for the metal anchor rod penetrating, of a building appendant between the metal anchor rod so as to form tight extrusion or interference fit. Permanent and firm connection and loss prevention of the undercut anchor can be realized and the welding is omitted, connecting strength is increased greatly, and labor force and cost can be saved. Drifting-preventing and positioning relationship between the anchoring sleeve and the building appendant is brought in, structure is simple, and using effect is good. The invention further provides a solution for fire proofing and heating resisting of the undercut anchor, and the undercut anchor is adaptable to various fire resisting areas.

Description

technical field [0001] The invention relates to a bottom-cut rivet and a connection structure of building accessories using the bottom-cut rivet. It is mainly suitable for construction of various buildings, subways, etc., and is more suitable for the use of curtain walls of building envelopes with high requirements for anti-vibration and fire protection. Background technique [0002] At present, the existing anchor bolts used in the curtain wall of the building envelope, due to the influence of hundreds of thousands of wind waves and thermal expansion and contraction every year, will cause the anchors to loosen and the gaps in the connecting holes to sag and cause 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 ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B2/88E04B1/94E04B1/98
Inventor 汪文忠徐洁媛亢永张清华徐跃华周桂云倪真李擘
Owner 斯泰科技(杭州)有限公司
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