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Joint expanding device and shear wall crack repairing process applying same

A technology of power and installation piece, applied in building maintenance, construction, building structure, etc., can solve the problems of poor repairing effect of shear wall cracks, rough repairing method, easy falling off of fillers, etc., and achieve stable mechanical transmission effect and moving effect. Stable, rotating effect Stable effect

Active Publication Date: 2021-09-17
东莞市建安集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In normal construction work, the shear wall is allowed to work with seams, but the owner still feels that there is a safety hazard when seeing it, so the cracks in the shear wall will also be repaired
The general repair of cracks in shear walls is just to apply filler to the cracks, and the cracks will be repaired after it dries. This kind of repair method is relatively rough, and its repair effect is poor, making the fillers easy to fall off, and the cracks will appear again soon.
[0003] In view of the related technologies mentioned above, the inventor believes that the repair of cracks in the shear wall has the defect of poor repair effect

Method used

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  • Joint expanding device and shear wall crack repairing process applying same
  • Joint expanding device and shear wall crack repairing process applying same
  • Joint expanding device and shear wall crack repairing process applying same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0058] The difference between embodiment 2 and embodiment 1 is: refer to Figure 4 and Figure 5 , the mounting piece 7 is installed in the mounting hole 131 through the fixing assembly 8. The mounting piece 7 is in a long strip state, and the connecting portion 51 of the rotating shaft 5 is rotatably connected to the middle part of the mounting piece 7. The two sides in the length direction of the mounting piece 7 are respectively provided with mounting grooves 72, and each mounting groove 72 is respectively provided with a fixed Component 8. The fixed component 8 includes a compression spring 82 and a fixed insert 81, the fixed slidable insert is inserted in the installation groove 72, the compression spring 82 is also arranged in the installation groove 72, and one end of the compression spring 82 abuts against the bottom of the installation groove 72 And the other end abuts against the fixing insert 81 . The inner wall of the installation hole 131 is provided with a fix...

Embodiment 3

[0060] The difference between embodiment 3 and embodiment 1 is: refer to Figure 6 and Figure 7, the mounting hole 131 is a round hole, the mounting piece 7 is disc-shaped, and the mounting piece 7 is installed in the mounting hole 131 through the rotation of the bearing. The connecting hole 71 is a square hole, the connecting portion 51 is in the shape of a square column, and the connecting portion 51 can be slidably inserted into the connecting hole 71 . One end of the connecting portion 51 away from the mounting portion 52 is provided with an abutment hole 511, and the peripheral side of the connection portion 51 is provided with an accommodating hole 512. The inner wall of the hole 71 is provided with a resisting groove 74, the number of the resisting groove 74 is equal to that of the accommodating hole 512, and the positions are arranged one by one. In this way, the connecting portion 51 is fixed in the connecting hole 71 . Specifically, the abutment 6 includes a thre...

Embodiment 4

[0062] The difference between embodiment 4 and embodiment 1 is: refer to Figure 8 , the grinding wheel 521 is provided with a grinding protrusion, which can be a protrusion of any shape, and it is preferably a smaller conical protrusion. When expanding the seam, it is performed by the edge of the grinding wheel 521. Grinding bumps constantly collide with the inner surface of the crack, and the inner surface of the crack is continuously hit to form a burr surface. When repairing, the adhesion of the filler to the burr surface is stronger. In this embodiment, a grip sleeve is also provided outside the housing 1. The grip sleeve is preferably an elastic sleeve body. The grip sleeve wraps the housing 1 and generates contraction elastic force. Specifically, the grip sleeve can be stretched through its own shrinkage. It can be fixed to the housing 1 by force, or it can be fixed to the housing 1 by gluing. When using the seam expanding device, the grip sleeve makes the staff hold t...

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PUM

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Abstract

The invention relates to a joint expanding device and a shear wall crack repairing process applying the joint expanding device. The joint expanding device comprises a shell, the shell is provided with a driving cavity, a transmission cavity, a grinding cavity and a power source cavity, a driving motor is arranged in the driving cavity, a transmission assembly is arranged in the transmission cavity, a grinding wheel is rotationally arranged in the grinding cavity. The power source cavity is used for installing a battery to supply power to the driving motor, and a dust removal piece is further arranged in the grinding cavity. A rotating shaft of the driving motor penetrates into the transmission cavity from the driving cavity, a driven shaft is further arranged in the transmission cavity, the transmission assembly transmits power of the driving motor to the driven shaft, and the driven shaft penetrates into the grinding cavity from the transmission cavity so as to drive the grinding wheel to rotate. The joint expanding device and the shear wall crack repairing process applying the joint expanding device has the effect of improving the repairing effect on shear wall cracks.

Description

technical field [0001] The present application relates to the field of repairing cracks in shear walls, in particular to a cracking device and a process for repairing cracks in a shear wall using the cracking device. Background technique [0002] Shear wall, also known as wind-resistant wall, earthquake-resistant wall or structural wall, is a wall in a house or structure that mainly bears horizontal loads and vertical loads (gravity) caused by wind loads or earthquakes. Structural shear (shear) failure. At present, in the construction process, the shear wall sometimes produces cracks after forming. The shear wall cracks mainly include concrete shrinkage cracks, cracks caused by building shapes, and cracks caused by external forces. In normal construction work, the shear wall is allowed to work with joints, but the owner still feels that there is a safety hazard when seeing it, so the cracks in the shear wall will also be repaired. The general repair of cracks in shear wall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02
CPCE04G23/0203
Inventor 曾华林周豁然刘柏言廖清华韦锦汉廖国文
Owner 东莞市建安集团有限公司