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Expansion bolt kit and using method thereof

A technology of expansion bolts and expansion sleeves, which is applied in the field of expansion bolt kits, can solve the problems of laborious opening of expansion blocks on top of the hemispherical head, difficulty in taking out the sleeve replacement, and difficult installation steps, etc., achieving low cost, simple structure, and easy installation Effect

Pending Publication Date: 2018-02-02
刘韦明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application number is 2016104925744, which is a top-tightening expansion bolt, which discloses the top-tightening expansion bolt. This kind of expansion bolt has the following defects: 1. There are many consumables, and the installation steps are not simple. 2. The hemispherical head pushes the expansion block 3. When installing the expansion bolt, it is necessary to knock in the sleeve first, and then screw in the bolt, and it is difficult to take out the sleeve for replacement, especially the embedded parts or the knocked-in sleeve are difficult to take out or need to be drilled again Hole embedded parts, cannot be reused

Method used

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  • Expansion bolt kit and using method thereof
  • Expansion bolt kit and using method thereof
  • Expansion bolt kit and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 , Figure 4 , Figure 6 and Figure 7 As shown, an expansion bolt kit includes a bolt 1 and an expansion sleeve 2, the bolt 1 is socketed with the expansion sleeve 2, and one end of the expansion sleeve is provided with an expansion part 24, and the expansion part 24 is provided with a longitudinal slit 21. The slits 21 are evenly distributed along the circumference of the expansion part, and the expansion part is divided into expansion blocks capable of expanding outward; the bolt 1 includes a screw rod and a bolt head 11, and the screw rod includes a polished rod part 26 near one end of the bolt head and is arranged on the other end of the polished rod part. The threaded part 25, the outer wall of the polished rod part 26 is smooth, and the outer wall of the threaded part 25 is provided with an external thread 14; the expansion sleeve includes two matched half-pipes, each half-pipe includes upper and lower parts, and the half-pipes pass through the ...

Embodiment 2

[0050] Such as figure 2 , image 3 and Figure 6 As shown, an expansion bolt kit includes a bolt 1 and an expansion sleeve 2, the bolt 1 and the expansion sleeve 2 are socketed, one end of the expansion sleeve 2 is provided with an expansion part 24, and the expansion part 24 is provided with a longitudinal cut 21 , the longitudinal slits 21 are evenly distributed along the circumference of the expansion part 24, and the expansion part 24 is divided into expansion blocks capable of expanding outward; the bolt 1 includes a screw rod and a bolt head 11, and the screw rod includes a polished rod part 26 near one end of the bolt head 11 and a set On the threaded portion 25 at the other end of the polished rod portion 26, the outer wall of the polished rod portion 26 is smooth, and the outer wall of the threaded portion 25 is provided with external threads 14, and the outer diameter of the threaded portion 25 is greater than the outer diameter of the polished rod portion 26; the ...

Embodiment 3

[0074] Such as Figure 8 As shown in the figure below, the basic structure is the same as that of Example 1, the only difference is that the outer diameter of the expansion part is equal to the outer diameter of the expansion sleeve wrapped by the sleeve, and the inner diameter of the conical hole changes from large to small along the screwing direction of the bolt. , the bolts are screwed in to make the expansion part expand and fasten on the plank. And because the threads of the threaded portion are fitted with the internal threads of the expansion sleeve, only the bolts need to be unscrewed during disassembly, and the expansion sleeve can also be pulled out simultaneously by pulling out the screw rod. The utility model has the advantages of simple structure, simple process, material saving, convenient disassembly and installation, and good connection and fastening effect.

[0075] The present invention can be expanded into products with different apertures and different le...

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PUM

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Abstract

The invention discloses an expansion bolt kit. The expansion bolt kit comprises a bolt and an expansion casing, and the bolt is connected with the expansion casing in a sleeved mode; an expansion partis arranged at one end of the expansion casing, the expansion part is provided with longitudinal notches which are evenly distributed along the circumference of the expansion part, so that the expansion part is divided into expansion blocks which can expand outward; the bolt comprises a screw rod and a bolt head, and the screw rod comprises an unthreaded rod part which is close to one end of thebolt head and a threaded part which is arranged at the other end of the unthreaded rod part; the outer wall of the unthreaded part is smooth, and an external thread is arranged on the outer wall of the threaded part; and the expansion casing comprises two oppositely-closing half casings, each half casing comprises an upper part and a lower part, and the half casings are connected into one throughan lock catch structure. The structure is simple, installing and disassembling are convenient, the utilization rate of the expansion bolt kit is improved, stability performance of connecting pieces isgreatly improved, so that connection is more firm and reliable. The invention further discloses a using method of the expansion bolt kit.

Description

technical field [0001] The invention belongs to the technical field of bolt sets, and in particular relates to an expansion bolt set and a using method thereof. Background technique [0002] Three-in-one connectors, also known as fasteners or combiners, are generally composed of eccentric wheels, connecting rods and embedded nuts. They are mainly used for the connectors of panel furniture, especially the vertical connection between panels of panel furniture or three panels. Interactive connection can realize the horizontal connection of two boards, generally used for medium density board, high density board and particle board. Specifically, using the radian of the torsion bending angle at the bottom of the eccentric wheel that deviates from the center of the circle, when the cross screw groove of the eccentric wheel is turned by the corkscrew, the connecting rod stuck in the radian will be pulled toward the center of the eccentric wheel along the radian, so that the connecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B13/06
CPCF16B13/063F16B13/068F16B12/14F16B12/2009A47B2230/0033A47B2230/0044A47B2230/0051F16B2012/2018
Inventor 刘韦明
Owner 刘韦明
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