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A double-tightened unilateral bolt connection

A technology of unilateral bolts and connectors, applied in the direction of connecting components, threaded fasteners, locking fasteners, etc., can solve the problems of small contact surface, affecting the stability of the connection structure, easy to loosen, etc., to achieve increased The effect of fastening the contact surface, low cost, and not easy to loosen

Active Publication Date: 2018-05-11
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the unilateral fastening bolt can realize the function of one-way fastening, the fastening between the bolt and the component depends only on the circumferential clamping of the screw hole by the spread sleeve, and the contact surface is small. It is easy to loosen under the action of misoperation, which will seriously affect the stability of the connection structure

Method used

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  • A double-tightened unilateral bolt connection
  • A double-tightened unilateral bolt connection
  • A double-tightened unilateral bolt connection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as Figure 1 ~ Figure 4As shown, a double-fastened unilateral bolt connector includes a positioning bolt 1, a rigid washer 3, a first positioning cylinder 5, a bidirectional cone head 6 and a second positioning cylinder 7, wherein the rigid washer 3, the first positioning cylinder The cylinder 5, the bidirectional cone head 6 and the second positioning cylinder 7 are all pierced on the positioning bolt 1, and the four are arranged sequentially from the end of the positioning bolt 1 with the bolt head to the other end of the positioning bolt 1. In this embodiment, both the rigid washer 3 and the first positioning cylinder 5 are in clearance fit with the screw of the positioning bolt 1 , and the inner diameter of the rigid washer 3 is smaller than the outer diameter of the first positioning cylinder 5 . The end of the second positioning cylinder 7 in this embodiment away from the bolt head is provided with a sealing plate, and the sealing plate and the two-way cone h...

Embodiment 2

[0030] In order to transmit the force applied at the bolt head to the first positioning cylinder 5 evenly, this embodiment makes the following further limitations on the basis of embodiment 1: this embodiment also includes a spring pad 2, wherein the spring pad 2 wears It is set on the screw rod of the set bolt 1 and is set between the bolt head of the set bolt 1 and the rigid washer 3 .

Embodiment 3

[0032] In order to reduce the impact of the gap between the first positioning cylinder 5 and the screw rod of the positioning bolt 1 on the structural stability of the application of this embodiment, this embodiment makes the following further limitations on the basis of Embodiment 1 or Embodiment 2: This embodiment also includes a spring ring sleeve 4, wherein the spring ring sleeve 4 is formed by laminating a plurality of transverse springs, and all the transverse springs constituting the spring ring sleeve 4 are passed through the screw rod of the positioning bolt 1, and the spring ring sleeve 4 is arranged on The inside of the first positioning cylinder 5 and one side thereof is in contact with the rigid washer 3 .

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Abstract

The invention discloses a double-fastened unilateral bolt connector, which comprises a positioning bolt and a rigid washer pierced on the positioning bolt, a first positioning cylinder, a two-way cone head, a second positioning cylinder, a rigid washer and a first positioning There is clearance fit between the two cylinders and the screw rod of the positioning bolt, and both the bidirectional cone head and the second positioning cylinder are fixed on the screw rod of the positioning bolt through thread matching. The diameter of the central part of the two-way cone head is larger than the diameter of its two ends, and the first positioning cylinder and the second positioning cylinder are provided with a plurality of strip-shaped cracks extending along the axial direction of the positioning bolt on the circumference of one end of the two-way cone head. , the strip-shaped gap separates the first positioning cylinder and the second positioning cylinder from one end facing the two-way cone head to form a plurality of strip-shaped positioning pieces. When the invention is applied, it is connected by one-way fastening, which is convenient to operate, saves time and effort, and is convenient for the connection of closed cross-section members. It is not easy to loose when subjected to uneven force, and can ensure the stability of the connection structure.

Description

technical field [0001] The invention relates to the technical field of steel structure connection, in particular to a double-fastened single-side bolt connection. Background technique [0002] Bolts are often used in steel structure construction projects to realize the connection between components. Among them, the traditional bolt body consists of two parts: the head and the threaded screw. When it is applied, the screw passes through the preset through hole of the component and is placed on the screw. Set the nut, then fix the head of the bolt on one side of the component, and then tighten the nut on the other side of the component. In this way, the fastening connection between the components is realized under the clamping and positioning action of the nut and the head of the bolt. The connection method using the above-mentioned bolts and matching nuts is a detachable connection, which has the advantages of simple operation and good fastening performance. Therefore, it ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B39/36F16B13/06
CPCF16B13/068F16B39/36
Inventor 王志宇王清远
Owner SICHUAN UNIV
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