CN203685240U - Multi-stage conical synchronous expansion anchoring rod - Google Patents
Multi-stage conical synchronous expansion anchoring rod Download PDFInfo
- Publication number
- CN203685240U CN203685240U CN201420029922.0U CN201420029922U CN203685240U CN 203685240 U CN203685240 U CN 203685240U CN 201420029922 U CN201420029922 U CN 201420029922U CN 203685240 U CN203685240 U CN 203685240U
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- China
- Prior art keywords
- rod
- sleeve
- sleeve pipe
- synchronous expansion
- tapering
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- Expired - Fee Related
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Abstract
The utility model discloses a multi-stage conical synchronous expansion anchoring rod which is composed of a rod body, a nut, a tray, a tray gasket, a sleeve gasket and a sleeve. The rod body is composed of a plurality of cones, an anchoring head is arranged at the tail of the rod body and is cylindrical, a full grouting pipe is arranged in the center of the rod body, and a slurry outlet hole is formed inside the anchoring head and communicated with the grouting pipe. The exterior of the sleeve is cylindrical, the interior of the sleeve is matched with the cones of the rod body in shape, and two full sleeve gaps are formed in the sleeve to divide the sleeve into two parts.
Description
one, affiliated technical field
The utility model relates to a kind of anchoring means, specifically the synchronous expansion anchor rod of a kind of multi-stage taper.
two, background technology
Anchor pole has a wide range of applications in underground construction, still, along with the raising of engineering specifications complexity, the requirement of Soil Anchor Design is also more increased, and particularly increases anchor rod anchored ability most important.Tradition anchor pole, after given prestressing force, just can not increase the anchored force of anchor pole again in the stressed motion after anchor pole.A China national Department of Intellectual Property disclosed key name on October 30th, 1996 is called " Whole-long anchor fixed wedge expansion plastic-steel whole-long archor pin ", the utility application that application number is 95245472.6; And a disclosed key name is called " expansion type of the falling wedge rubber plastics steel anchor pole of desirable any anchorage length ", the utility application that application number is 98233175.4 on February 9th, 2000.On it, two patents efficiently solve the subproblem of the existence of traditional anchor pole, but all very complicated in design and installation.Patent " Whole-long anchor fixed wedge expansion plastic-steel whole-long archor pin " is divided into pipe box multistage, although can freely arrange rock-bolt length, with its fixed length body of rod Comparatively speaking, multistage distributing installation pipe box relative complex; Patent " expansion type of the falling wedge rubber plastics steel anchor pole of desirable any anchorage length " is also that barre cover is divided into multiple parts, after installing respectively, just forms Anchor Bar really.Above-mentioned two patents are not all set up independently anchored end, are subject to when termination centrum motion follower head is stressed the destruction that cannot recover, have reduced the stress of anchor pole.Meanwhile, two patents all need complicated installation steps, and the length consuming time of working, affects operating efficiency.
three, summary of the invention
The utility model is the synchronous expansion anchor rod of a kind of multi-stage taper, is made up of the body of rod, nut, pallet, shim tray, sleeve pipe pad and sleeve pipe.The described body of rod is made up of multiple tapering bodies, and body of rod afterbody is provided with anchorage head, and anchorage head is cylinder, and body of rod center is provided with elongated Grouting Pipe, and anchorage head inside is provided with slurry outlet, slurry outlet and Grouting Pipe UNICOM.Described jacket exterior is shaped as cylinder, and interior shape matches with the tapering body of the body of rod, and sleeve pipe is provided with two elongated cover pipe seams, and sleeve pipe is divided into two parts.
When use, first two parts of sleeve pipe are closed up around the body of rod, then, at the utility model head successively mounting sleeve pad, pallet, shim tray and nut, after installing, the utility model entirety is sent in rock body drilled, then by Grouting Pipe slip casting.Slurry reaches after some strength, fastening nut, and the body of rod can outwards move with respect to sleeve pipe, and in moving process, tapering cognition causes casing expandable, and sleeve outer wall and rock mass produce extruding and friction, thereby reach anchoring effect.
As improvement, the angle of the conical surface of tapering body and body of rod center line is 3-4 while spending, exerts oneself moderate and casing expandable is obvious when nut screwing clamping.
As improvement, the quantity of slurry outlet is 3, and angle is each other 120 while spending, and pulp is satisfactory for result, and slurry distributes more even in petrosal foramen.
As improvement, when the length of every pitch cone degree body is 5-7 times of tapering body top diameter, the major part of tapering body and top diameter difference are little, and the thinnest and thickness difference of casing wall is little simultaneously, can reach desirable anchoring effect, saves again material.
Effect intentionally of the present invention is, the utility model contexture is simple, easy for installation, efficiency of construction improves greatly, increase after anchorage head simultaneously, in the rational stroke range of the body of rod, can ensure that inside pipe casing is supported by tapering body or anchorage head all the time, can there is not sleeve pipe afterbody and be crushed, lose the situation of frictional force.
four, brief description of the drawings
Fig. 1 is organigram of the present utility model
Fig. 2 is the detail drawing of the body of rod
Fig. 3 is A-A sectional drawing
Fig. 4 is B-B sectional drawing
Wherein, the body of rod 1, anchorage head 11, tapering body 12, Grouting Pipe 13, slurry outlet 14, nut 2, pallet 3, shim tray 4, sleeve pipe pad 5, sleeve pipe 6, cover pipe seam 61.
five, detailed description of the invention
According to accompanying drawing, the synchronous expansion anchor rod of a kind of multi-stage taper, formed by the body of rod 1, nut 2, pallet 3, shim tray 4, sleeve pipe pad 5 and sleeve pipe 6, the described body of rod 1 is made up of multiple tapering bodies 12, the body of rod 1 afterbody is provided with anchorage head 11, and anchorage head 11 is cylinder, and the body of rod 1 center is provided with elongated Grouting Pipe 13, anchorage head 11 inside are provided with slurry outlet 14, slurry outlet 14 and Grouting Pipe 13 UNICOMs.Described sleeve pipe 6 external shape are cylinder, and interior shape matches with the tapering body 12 of the body of rod, and sleeve pipe 6 is provided with two elongated cover pipe seams 61.When use, now two parts of sleeve pipe 6 are closed up around the body of rod, then at the utility model head successively mounting sleeve pad 5, pallet 3, shim tray 4 and nut 2, after installing, the utility model entirety is sent in rock body drilled, then by Grouting Pipe 13 slip castings.Slurry reaches after some strength, fastening nut 2, and the body of rod 1 can outwards move with respect to sleeve pipe 6, and in moving process, tapering body 12 can cause sleeve pipe 6 to expand, and sleeve pipe 6 outer walls and rock mass produce extruding and friction, thereby reach anchoring effect.
As improvement, the angle of the conical surface of tapering body 12 and body of rod center line is 3-4 while spending, exerts oneself moderate and casing expandable is obvious when nut 2 is tightened.
As improvement, the quantity of slurry outlet 14 is 3, and angle is each other 120 while spending, and pulp is satisfactory for result, and slurry distributes more even in petrosal foramen.
As improvement, when the length of every pitch cone degree body 12 is 5-7 times of tapering body top diameter, the major part of tapering body 12 and top diameter difference are little, and the thinnest and thickness difference of casing wall is little simultaneously, can reach desirable anchoring effect, saves again material.
Claims (4)
1. the synchronous expansion anchor rod of multi-stage taper, by the body of rod (1), nut (2), pallet (3), shim tray (4), sleeve pipe pad (5) and sleeve pipe (6) composition, the described body of rod (1) is made up of multiple tapering bodies (12), it is characterized in that: the body of rod (1) afterbody is provided with anchorage head (11), anchorage head (11) is cylinder, the body of rod (1) center is provided with elongated Grouting Pipe (13), anchorage head (11) inside is provided with slurry outlet (14), slurry outlet (14) and Grouting Pipe (13) UNICOM, described sleeve pipe (6) external shape is cylinder, interior shape matches with the tapering body (12) of the body of rod, sleeve pipe (6) is provided with two elongated cover pipe seams (61).
2. the synchronous expansion anchor rod of a kind of multi-stage taper as claimed in claim 1, is characterized in that: the conical surface of described tapering body (12) and the angle of body of rod center line are 3-4 degree.
3. the synchronous expansion anchor rod of a kind of multi-stage taper as claimed in claim 1, is characterized in that: the quantity of described slurry outlet is 3, angle is each other 120 degree.
4. the synchronous expansion anchor rod of a kind of multi-stage taper as claimed in claim 1, is characterized in that: the length of every pitch cone degree body is 5-7 times of tapering body top diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420029922.0U CN203685240U (en) | 2014-01-17 | 2014-01-17 | Multi-stage conical synchronous expansion anchoring rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420029922.0U CN203685240U (en) | 2014-01-17 | 2014-01-17 | Multi-stage conical synchronous expansion anchoring rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685240U true CN203685240U (en) | 2014-07-02 |
Family
ID=51007158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420029922.0U Expired - Fee Related CN203685240U (en) | 2014-01-17 | 2014-01-17 | Multi-stage conical synchronous expansion anchoring rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685240U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696792A (en) * | 2014-01-17 | 2014-04-02 | 山东科技大学 | Multi-stage conical synchronous expansion anchor rod |
| CN104165800A (en) * | 2014-07-28 | 2014-11-26 | 辽宁省水利水电科学研究院 | Expandable bolt for roller compacted concrete in-situ shear test |
-
2014
- 2014-01-17 CN CN201420029922.0U patent/CN203685240U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696792A (en) * | 2014-01-17 | 2014-04-02 | 山东科技大学 | Multi-stage conical synchronous expansion anchor rod |
| CN104165800A (en) * | 2014-07-28 | 2014-11-26 | 辽宁省水利水电科学研究院 | Expandable bolt for roller compacted concrete in-situ shear test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20150117 |
|
| EXPY | Termination of patent right or utility model |