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Self-reset single-side bolt fastener system

A unilateral bolt and fastener technology, applied in the direction of threaded fasteners, screws, connecting components, etc., to achieve the effects of uniform bearing, good compressive and shear mechanical properties, and simple structure

Pending Publication Date: 2018-11-13
上海同派建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Round head bolts and four separate machined gaskets are positioned and installed through the operating lever and the operating top hook

Method used

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  • Self-reset single-side bolt fastener system
  • Self-reset single-side bolt fastener system
  • Self-reset single-side bolt fastener system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: The present invention includes split machining gasket 1-1, split machining gasket 1-2, split machining gasket 1-3, split machining gasket 1-4, round head bolts 2. Sleeve 3, washer 4, nut 5, plum blossom head 7, shape memory alloy flat ring 9, etc. The round head bolt 2 and the four split machining gaskets 1-1 to 1-4 are positioned and installed through the operating rod 8-2 and the operating top hook 8-4.

[0027] The shapes of the four split machining gaskets 1-1 to 1-4 are exactly the same, and the cut corners 1-8 and 1-9 are processed at the ends to facilitate the extrusion of the extrudable composite gasket. During the process, press against each other and keep stable.

[0028] Installation method:

[0029] 1. First assemble the four split machining gaskets 1-1~1-4 and the shape memory alloy flat ring 9 into an extrudable combined gasket 1 (such as Figure 5 shown), then insert the extrudable combined gasket 1, sleeve 3, washer 4, and nut 5 into the...

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PUM

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Abstract

The invention discloses a self-reset single-side bolt fastener system suitable for the field of civil engineering. The self-reset single-side bolt fastener system comprises four split machine machining gaskets, a cheese bolt, a nut, a sleeve, a washer, a shape memory alloy flat ring and the like. The cheese bolt and the four split machine machining gaskets are located and mounted through an operation rod and an operation top hook. During mounting, the four split machine machining gaskets and the shape memory alloy flat ring are firstly assembled into an extrudable combined gasket, then the extrudable combined gasket, the sleeve, the washer and the nut are sequentially arranged in the operation rod in a sleeved manner, then the operation rod is screwed into a locating screw whole of a wobbler at the end of the cheese bolt, the combined gasket is extruded into an oval shape and is plugged into a bolt hole, and then the extrudable combined gasket is pushed into the bolt hole through the operation top hook; and the combined gasket can achieve springback under the action of the self-reset effect of a shape memory alloy, and the circular shape is restored. The operation rod is pulled back, a protrusion in the combined gasket is clamped into the surface of the inner side of the bolt hole, finally, the sleeve, the washer and the nut are mounted, the nut is screwed preliminarily, the operation rod is dismounted down, the wobbler is screwed off by an electric torque wrench, and final screwing is completed. According to the self-reset single-side bolt fastener system, single-side operation can be achieved, connecting and fastening of structural components can be completed, and application of pretightening force can be achieved.

Description

technical field [0001] The invention relates to a bolt fastener which can be used for unilateral installation in the connection and fastening of structural parts, and belongs to the technical fields of civil engineering and mechanical assembly. Background technique [0002] The current common bolts are divided into two parts, the screw rod and the nut. It is necessary to insert the screw rod on one side, and then tighten the nut on the other side. In this case, workers need to work on both sides of the member at the same time. However, in some special occasions, such as closed-section members or members with inconvenient access to a certain side, it will not be possible to install using common bolts. [0003] For example, in a box-column-H-beam joint, since the column section is a closed section, ordinary bolts cannot be operated on both sides and cannot be installed. The existing core bolt technology has high requirements for the reserved accuracy of the bolt holes on bot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/00F16B43/00B25B27/02
CPCF16B35/00F16B43/00B25B27/02
Inventor 邵红亮喻月楚功崚
Owner 上海同派建筑科技有限公司
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