Reinforcing steel bar connecting device

A connection method and connection device technology, applied in auxiliary devices, welding equipment, welding equipment, etc., can solve the problems of difficult screw connection strength, high equipment requirements, and large influence on the shape of steel bars, and achieve simple and convenient construction technology and a high degree of industrialization , The effect of simple construction technology

Inactive Publication Date: 2009-10-07
SHANGHAI CONSTRUCTION GROUP
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing steel bar thread connection technology is to form threads on the basis of the steel bar base material. No matter what the forming method is, the connection quality is difficult to avoid the following defects: greatly affected by the shape of the steel bar; the section of the steel bar is reduced to varying degrees; There is a certain influence; the thread quality is difficult to fully guarantee; there are many thread forming processes, and the required equipment requires high requirements
In short, at present, the strength of the threaded connection directly formed by the steel body is difficult to be completely equal to that of the base metal, and the connection of the steel bar often becomes a weak link, causing a lot of waste

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Reinforcing steel bar connecting device
  • Reinforcing steel bar connecting device
  • Reinforcing steel bar connecting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] In this embodiment, a HRB335 type steel bar with a diameter of Φ20 needs to be extended with another steel bar of the same model and the same diameter. see figure 1 , this steel bar connection device includes a bolt connection pair for connecting two steel bars 1, 1' to be connected, the bolt connection pair includes a bolt 2 and a sleeve 3, and the bolt 2 and the sleeve 3 correspond to each other , and the bolt 2 and the sleeve 3 are respectively welded to the corresponding steel bars 1 and 1 ′, and the bolt 2 and the sleeve 3 are screwed together. In order to make the connection between the sleeve 3 and the reinforcing bar 1 ' fixed, a sleeve bottom screw rod 31 can be set at the inside of the sleeve 3 and the side connected with the reinforcing bar. As mentioned above, the external thread of the sleeve back cover screw 31 matches the internal thread of the sleeve.

[0047] This steel bar connection method adopting the above-mentioned steel bar connection device com...

Embodiment 2

[0074] see Figure 8 The difference between the reinforcing bar connecting device and method in the present embodiment and the reinforcing bar connecting device method in Embodiment 1 is that the bolt connecting pair includes two bolts 2, 2' and a sleeve 3, and the bolts 2, 2' Corresponding to the internal threads at both ends of the sleeve 3 respectively, and the bolts 2, 2' are welded to the corresponding steel bars 1, 1' respectively, and the bolts 2, 2' are respectively connected to the sleeve 3 Screw-in connection at both ends.

[0075] In addition, since the sleeve 3 is not welded together with the reinforcing bars 1, 1', the sleeve back cover screw can be unnecessary inside the sleeve.

Embodiment 3

[0077] see Figure 9 The difference between the reinforcing bar connecting device and method in the present embodiment and the reinforcing bar connecting device and method in Embodiment 1 is that: the bolt connecting pair includes a bolt 2 and two sleeves 3, 3 ', and the bolt 2 is two stud bolts whose ends are respectively corresponding to the sleeves 3, 3', and the sleeves 3, 3' are welded to the corresponding steel bars 1, 1' respectively, and the two ends of the bolt 2 are respectively connected to the The sleeves 3 and 3' are screwed together.

[0078] In addition, since the sleeves 3, 3' are welded together with the reinforcing bars 1, 1', the sleeves 3, 3' are provided with sleeve back-sealing screws 31, 31' to reinforce the sleeve 3 or 3' and the reinforcing bars. 1 or 1' for connection strength and stability.

[0079]In summary, the steel bar connection method of the present invention has the advantages of reliable connection strength, high degree of industrializatio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the technical field of civil engineering. A reinforcing steel bar connecting device is disclosed, comprising a bolt connecting pair for connecting two reinforcing steel bars to be connected, wherein the bolt connecting pair comprises at least a bolt and a sleeve, and the reinforcing steel bars are connected by the bolt connecting pair in screw-closure manner. The invention further discloses a reinforcing steel bar connecting method using the reinforcing steel bar connecting device, including the following steps: firstly, the bolt or sleeve needing fixed connection with reinforcing steel bars in the bolt connecting device is respectively welded with the corresponding reinforcing steel bar; and then, the reinforcing steel bar to be connected is connected with the bolt and sleeve of the bolt connecting device in screw-closure manner. Screw threads are not needed forming on the basis of reinforcing steel bar base metal, so the connecting strength of joints can be equal to the reinforcing steel bar base metal, and the quality of reinforcing steel bar connection is guaranteed in the application of engineering. The bolt connecting pair is processed in factories, so the industrialization degree is high and the quality is more guaranteed. Manual screw-closure of sleeve is used between bolts, so the construction technique is simple and convenient.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a steel bar connection device and method. Background technique [0002] In reinforced concrete structures, the connection of steel bars, especially the main bars, is an important issue. Engineers have been looking for an easy, reliable, and inexpensive way to join rebar. [0003] The early steel bar connection has been using the binding method. This method is simple in construction, simple in equipment, and is not affected by the climate. However, there are major disadvantages in using the binding method to connect steel bars, which are concentrated in the following three points: First, waste of steel, binding The method requires a certain "lap length" to be reserved at the joint; second, the force transmission effect of the joint is not good, and the eccentric connection of the steel bar will generate additional shear stress; third, the density of the steel bar at the joint is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E04C5/16E04C5/18B23K11/04B23K11/34B23K37/053
Inventor 胡玉银王长虹丁翔陈庆杨峰亮
Owner SHANGHAI CONSTRUCTION GROUP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap