Clamp connection-type connecting device in sleeve and its connection structure and installation method thereof

A connecting device and connecting structure technology, applied in structural elements, building components, building structures, etc., can solve problems such as high connection strength, hidden dangers in building safety, and difficult quality control, so as to improve bearing capacity, improve connection strength, and install easy effect

Pending Publication Date: 2018-07-17
李藏柱
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Advantages: Simple installation and operation; Disadvantages: Due to the welding process, the performance of the connected steel plate is brittle, resulting in poor toughness/easy cracking/low connection strength of the steel plate, poor structural connection integrity/air tightness/seismic resistance, poor corrosion resistance/durability; now It is an obsolete technology, and the market application range is small
The advantage is that the connection strength is higher than the welding strength, and the disadvantages are: high cost, poor structural connection integrity/air tightness/seismic resistance, poor corrosion resistance/durability; small market application range
[0009] Disadvantages: In practical application, the following problems need to be improved in the steel sleeve grouting connection technology: 1. The construction operation is difficult due to factors such as steel bar deformation, displacement, and small installation gap; 2. The problem of grout leakage is easy to occur and cannot be inspected; 3. .The operation process is complex, requiring special equipment, tools, materials, and personnel; 4. High cost and difficult to control the quality; 4. There are many factors affecting the quality of grouting materials (materials, water-cement ratio, mixing, grouting, grout leakage, personnel operation , application time, etc.), quality control is difficult; 5. Since the steel sleeve grouting connection technology is to bond the steel bar to the

Method used

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  • Clamp connection-type connecting device in sleeve and its connection structure and installation method thereof
  • Clamp connection-type connecting device in sleeve and its connection structure and installation method thereof
  • Clamp connection-type connecting device in sleeve and its connection structure and installation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0091] Example 1

[0092] The snap-on connection device inside the sleeve and its connection structure, such as figure 1 As shown, the snap-on connection device inside the sleeve 1 is the sleeve 1, and the sleeve 1 is provided with a grouting hole 11, which facilitates the cement slurry to flow into the sleeve 1 and fill the inner space of the sleeve 1 more easily during pouring. combine figure 2 , the snap-on connection structure inside the sleeve includes a sleeve 1, a snap-on part and a connecting rib, the snap-on part is an external threaded nut 2, and the inner walls of the two ends of the sleeve 1 are provided with internal threads for the external threaded nut 2 to be threadedly connected 12. The external thread nut 2 can be screwed and fixedly connected to the inner side of both ends of the sleeve 1 through the internal thread 12 . The connecting bar is a connecting bar 3, and one end of the connecting bar 3 close to the sleeve 1 is fixedly connected with an expans...

Example Embodiment

[0097] Example 2

[0098] The snap-on connection device inside the sleeve and its connection structure are different from Embodiment 1 in that, such as Figure 4 As shown, the clamping member is an axial abutment retaining spring 4 , and a clamping groove 14 for the axial abutting retaining spring 4 to be clamped is formed on the inner walls of both ends of the sleeve 1 . combine Figure 5 , first extend the expansion head 31 into the inside of the sleeve 1, then put the axial abutting circlip 4 on the connecting steel bar 3, and then snap and install the axial abutting circlip 4 in the snap groove 14, when When the expansion head 31 moves in the direction of pulling out the sleeve 1 , it can abut against the axial abutment retaining spring 4 to restrict the expansion head 31 from pulling out the sleeve 1 .

Example Embodiment

[0099] Example 3

[0100] The snap-on connection device inside the sleeve and its connection structure are different from Embodiment 2 in that, such as Image 6 As shown, the inner ring of the axial abutment spring 4 is fixedly connected with an anti-separation ratchet 41, and the anti-separation ratchet 41 is inclined along the direction close to the center axis of the sleeve 1 toward the center of the sleeve 1, and the enlarged head 31 is inserted During the process of the sleeve 1, it abuts against the anti-separation ratchet 41, and generates a force on the anti-separation ratchet 41 in the direction away from the central axis of the sleeve 1, and pushes the anti-separation ratchet 41 to the direction away from the central axis of the sleeve 1. After the expansion head 31 is elastically deformed, after the expansion head 31 passes through the axial abutment spring 4 , the anti-separation ratchet 41 restores the deformation to restrict the movement of the expansion head 31 ...

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PUM

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Abstract

The invention discloses a clamp connection-type connecting device in a sleeve and its connection structure and an installation method thereof. The clamp connection-type connecting device in the sleevecomprises the sleeve and a connection bar and a clamp-connection member, and the connection bar is capable of being inserted in the sleeve from an end part of the sleeve; the clamp-connection memberis subjected to clamp connection at an inner side of two ends of the sleeve, and is used for obstructing the clamp-connection member positioned in the sleeve to move to a direction of pulling the sleeve out, and the structure has the advantages of convenient installation and low cost; a slip-casting aperture is arranged at the sleeve, a cement mortar can be injected in the sleeve through the slip-casting aperture and end ports at two ends of the sleeve, after the cement mortar is solidified, the connection strength between the sleeve and the connection bar is increased, and the connection strength of walls can be increased.

Description

technical field [0001] The invention relates to a steel bar connection structure, in particular to a clamping connection structure inside a sleeve. Background technique [0002] At present, the connection methods of prefabricated components in prefabricated concrete structure buildings, especially the vertical reinforcement connection methods of vertical components (prefabricated wall panels / columns) mainly include: 1) welding connection of embedded parts, 2) bolt connection of embedded parts , 3) There are three connection methods for steel sleeve grouting connection. [0003] 1) The welding connection of embedded parts is that the connecting steel plate is preset at the connecting part of the component, and after the prefabricated component is installed, the adjacent embedded steel plate between the components is welded and connected into one. [0004] Advantages: Simple installation and operation; Disadvantages: Due to the welding process, the performance of the connecte...

Claims

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Application Information

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IPC IPC(8): E04C5/16
CPCE04C5/165
Inventor 李藏柱
Owner 李藏柱
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