CN103185052A - Expansion bolt - Google Patents
Expansion bolt Download PDFInfo
- Publication number
- CN103185052A CN103185052A CN 201310109967 CN201310109967A CN103185052A CN 103185052 A CN103185052 A CN 103185052A CN 201310109967 CN201310109967 CN 201310109967 CN 201310109967 A CN201310109967 A CN 201310109967A CN 103185052 A CN103185052 A CN 103185052A
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- CN
- China
- Prior art keywords
- adjusting nut
- fixing part
- deformation sleeve
- block
- conical surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to an expansion bolt which comprises a fixing part, an adjusting nut and a deformation sleeve, wherein the fixing part is a rotary body, and the head of the fixing part is provided with a check block; the surface of the fixing part is provided with a thread which is matched with the adjusting nut; the deformation sleeve is arranged on the fixing part between the adjusting nut and the check block; the cross section of the deformation sleeve is in a C shape; the inner surface of the end of the deformation sleeve is provided with a compression conical surface; the end surface where the adjusting nut is matched with the deformation sleeve is a driving conical surface; the end surface where the check block is matched with the deformation sleeve is a fixed conical surface; and when the expansion bolt is used, the part of the fixing part provided with the deformation sleeve is put into a fixing hole, the adjusting nut is rotated to move towards the head of the fixing part, and the deformation sleeve elastically deforms and is in interference fit with the fixing hole under the co-extrusion of the adjusting nut and the check block. The expansion bolt is large in contact range with a fixing body, high in strength, strong in stability, reasonable in structure, and easy to install and is reusable.
Description
Technical field
The present invention relates to a kind of EXPANSION ANCHOR BOLTS, especially high strength is repeatedly used, the EXPANSION ANCHOR BOLTS that the life-span is long.
Background technique
At present, traditional expansion bolt mainly contains backbone, expansion tube, pad and nut and constitutes, and wherein basic bar is taper, and its small end is processed with screw thread, is processed with three longitudinal openings on the big section of expansion tube one end, makes an end of expansion tube be divided into three.During assembling, move by basic bar outer expansion tube is strutted the function that realizes that it is fixing, this EXPANSION ANCHOR BOLTS is disposable use, the waste resource, and intensity is low, poor stability.
Chinese patent is also arranged in addition: a kind of EXPANSION ANCHOR BOLTS (200580025461.3), it comprises a fixed block, this fixed block has a support plate and leg bar.This EXPANSION ANCHOR BOLTS also has an actuator, and this actuator has a top board and a handle bar.At the locked position place, this top board and support plate adjacency.The engagement of expansion projection can make the leg bar outwards open in the effective area.Have at least a projection location piece to be connected on the handle bar, it is by the oblique slightly place, oblique angle from top board of slip surface.
But above-mentioned a kind of EXPANSION ANCHOR BOLTS complex structure, the life-span is short, and intensity is low.
Summary of the invention
In order to solve existing EXPANSION ANCHOR BOLTS complex structure, the life-span is short, and the shortcoming that intensity is low the invention provides a kind of EXPANSION ANCHOR BOLTS.
The technical solution adopted for the present invention to solve the technical problems is: a kind of EXPANSION ANCHOR BOLTS, comprise fixed block, adjusting nut, the distortion cover, it is characterized in that: this fixed block is solid of rotation, and head is provided with block, and the fixed block surface is provided with screw thread, be combined with adjusting nut on the screw thread, the fixed block between adjusting nut and the block is provided with the distortion cover; Distortion cover cross section is C shape, and distortion cover end internal surface is provided with the pressurized conical surface; Adjusting nut is provided with the driving conical surface with distortion cover counterface, and block is provided with fixed axoid with distortion cover counterface.
The invention has the beneficial effects as follows: the intensity height, stability is strong, and is rational in infrastructure, installs simple, reusable.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a kind of EXPANSION ANCHOR BOLTS sectional view of the present invention.
Fig. 2 is the distortion cover left view schematic representation of a kind of EXPANSION ANCHOR BOLTS of the present invention.
1. fixed blocks among the figure, 2. screw thread, 3. adjusting nut, 4. the driving conical surface, 5. distortion cover, 6. fixed axoid, 7. block, 8. pressurized conical surface.
Embodiment
Below in conjunction with embodiment of accompanying drawing narration, the invention will be further described.
In Fig. 1-Fig. 2, EXPANSION ANCHOR BOLTS is by fixed block 1, distortion cover 5 and adjusting nut 3 are formed, this fixed block 1 is solid of rotation, head is provided with block 7, fixed block 1 surface is provided with screw thread 2, be combined with adjusting nut 3 on the screw thread 2, the fixed block 1 between adjusting nut 3 and the block 7 is provided with distortion cover 5, and distortion cover 5 cross sections are C shape, distortion cover 5 end internal surfaces are provided with pressurized conical surface 8, adjusting nut 3 is the driving conical surface 4 with distortion cover 5 counterfaces, and block 7 is fixed axoid 6 with distortion cover 5 counterfaces, and driving the conical surface 4 inclination angles is α, distortion cover 5 and the friction factor that drives between the conical surface 4 are μ, then tg α ≦ μ.
When the present invention uses, fixed hole is put at the position that fixed block 1 is provided with distortion cover 5, rotation adjusting nut 3 moves to fixed block 1 head, distortion cover 5 resiliently deformable and fixed hole interference fit under the co-extrusion of adjusting nut 3 and block 7, when needing dismounting, rotation adjusting nut 3 moves to fixed block 1 afterbody, and distortion cover 5 disengages with block 7 and adjusting nut 3, distortion cover 5 restores to the original state under the effect of self internal stress and disengages with fixed hole, outwards extracts EXPANSION ANCHOR BOLTS.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (3)
1. an EXPANSION ANCHOR BOLTS comprises fixed block, adjusting nut, the distortion cover, it is characterized in that: this fixed block is solid of rotation, and head is provided with block, the fixed block surface is provided with screw thread, is combined with adjusting nut on the screw thread, and the fixed block between adjusting nut and the block is provided with the distortion cover.
2. a kind of EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that: distortion cover cross section is C shape, and distortion cover end internal surface is provided with the pressurized conical surface.
3. a kind of EXPANSION ANCHOR BOLTS according to claim 1 is characterized in that: adjusting nut is provided with the driving conical surface with distortion cover counterface, and block is provided with fixed axoid with distortion cover counterface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310109967 CN103185052A (en) | 2013-04-01 | 2013-04-01 | Expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310109967 CN103185052A (en) | 2013-04-01 | 2013-04-01 | Expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103185052A true CN103185052A (en) | 2013-07-03 |
Family
ID=48676424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310109967 Pending CN103185052A (en) | 2013-04-01 | 2013-04-01 | Expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103185052A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016019920A1 (en) * | 2014-08-08 | 2016-02-11 | 杨东佐 | Expansion fastening connection structure and connection method, and expansion fastening connection assembly |
| WO2016019914A1 (en) * | 2014-08-08 | 2016-02-11 | 杨东佐 | Expansion fastening connection structure and connection method, and expansion fastening connection assembly |
| WO2016019917A1 (en) * | 2014-08-08 | 2016-02-11 | 杨东佐 | Contraction and expansion-type fastening connection assembly, and contraction and expansion-type fastening connection structure and connection method |
-
2013
- 2013-04-01 CN CN 201310109967 patent/CN103185052A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016019920A1 (en) * | 2014-08-08 | 2016-02-11 | 杨东佐 | Expansion fastening connection structure and connection method, and expansion fastening connection assembly |
| WO2016019914A1 (en) * | 2014-08-08 | 2016-02-11 | 杨东佐 | Expansion fastening connection structure and connection method, and expansion fastening connection assembly |
| WO2016019917A1 (en) * | 2014-08-08 | 2016-02-11 | 杨东佐 | Contraction and expansion-type fastening connection assembly, and contraction and expansion-type fastening connection structure and connection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130703 |