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A flip type unilateral bolt fastener

A single-sided bolt and flip-up technology, which is applied in the direction of threaded fasteners, screws, connecting components, etc., can solve the problems of complex installation and positioning, affecting the installation and use of fasteners, and the inability of gaskets to be turned over correctly, so as to achieve good mechanical properties , compact structure, simple and reliable installation process

Active Publication Date: 2020-08-18
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this fastener can solve the problem of complex installation and positioning of nested unilateral fasteners, due to its own structural problems, the two ends of each gasket are respectively pressed between the end surface of the bolt and the end surface of the sleeve during actual installation. As a result, the gasket is often pressed by the end face of the bolt and cannot be turned over correctly, which affects the installation and use of the fastener

Method used

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  • A flip type unilateral bolt fastener
  • A flip type unilateral bolt fastener
  • A flip type unilateral bolt fastener

Examples

Experimental program
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Effect test

Embodiment

[0038] Such as figure 1 A flip-type unilateral bolt fastener is shown, which includes a round-head bolt 1 and a flip-type gasket assembly 5 and a sleeve that are sequentially sleeved on the round-head bolt 1 along the axial direction of the round-head bolt 1 2. Washer 3, nut 4, such as figure 2 As shown, the reversible gasket assembly 5 includes a reversible mating body 5b and a plurality of reversible gaskets 5a that are evenly arranged on the reversing mating body 5b along the circumference of the reversing mating body 5b and are rotatably connected with the reversing mating body 5b. The spacer 5a fits the sleeve 2 .

[0039] Such as image 3 As shown, the head end of the flip-up gasket 5a is provided with a gasket slope 5c, and the tail end is rotatably connected with the flip fitting 5b, and the end of the sleeve 2 is provided with a sleeve slope 2a matching the gasket slope 5c. A plurality of gasket movable grooves 5d matching the flipped gasket 5a are uniformly opene...

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Abstract

The invention relates to a turnover unilateral bolt fastener. The fastener comprises a round head bolt, and a turnover gasket assembly, a sleeve, a washer and a nut which sequentially sleeve the roundhead bolt along the axial direction of the round head bolt, wherein the turnover gasket assembly comprises a turnover cooperating body, and a plurality of turnover gaskets which are evenly distributed on the turnover cooperating body along the circumferential direction of the turnover cooperating body and are rotatably connected with the turnover cooperating body; the turnover gaskets are matchedwith the sleeve. Compared with the prior art, the turnover unilateral bolt fastener adopts a design of a special structure comprising the turnover gaskets, the turnover cooperating body and the sleeve, and the inclined plane of the sleeve is matched with the inclined planes of the gaskets, so that the turnover gaskets are enabled to accurately overturn during work, and installation failure is avoided; the turnover unilateral bolt fastener can realize rapid and accurate unilateral fixed connection by means of the overturning moment of the plurality of turnover gaskets, and the problem of boltmounting failure under certain special working conditions is solved; furthermore, the turnover unilateral bolt fastener is simple and reliable in installation process, convenient to disassemble, reusable, good in mechanical properties and large in bearing capacity.

Description

technical field [0001] The invention belongs to the technical field of unilateral bolts, and relates to a flip-type unilateral bolt fastener. Background technique [0002] In the field of civil engineering and mechanical installation, the demand for connection and fastening of structural parts is increasing. As far as bolts are commonly used at present, when performing connection and fastening operations on components, workers need to work on both sides of the component at the same time, that is, insert a bolt with a nut on one side, and then use a tool to tighten the nut on the other side . This connection and fastening method is simple in structure, easy to operate, and good in load, but it is only suitable for open section members. When it is fixed, this commonly used bolt and nut connection and fastening method cannot be used. For example: in the steel pipe structure and steel pipe concrete structure, at the joint of the beam column, because the steel pipe column is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B43/00F16B35/00
CPCF16B35/00F16B43/00
Inventor 简小刚杨培康黄新
Owner TONGJI UNIV
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