CN101899988A - Expanded anchor rod - Google Patents
Expanded anchor rod Download PDFInfo
- Publication number
- CN101899988A CN101899988A CN2009100159407A CN200910015940A CN101899988A CN 101899988 A CN101899988 A CN 101899988A CN 2009100159407 A CN2009100159407 A CN 2009100159407A CN 200910015940 A CN200910015940 A CN 200910015940A CN 101899988 A CN101899988 A CN 101899988A
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- expand tube
- rod body
- expanded
- nut
- 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.)
- Pending
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- Piles And Underground Anchors (AREA)
Abstract
The invention in particular relates to an expanded anchor rod used for supporting projects, such as mine roadways, road tunnels, water conservancy culverts and the like. The expanded anchor rod is characterized by consisting of an inner expand tube and an outer expand tube between which the matched surface is a conical surface and which are sleeved together, wherein an open slot is reserved on the outer rings of the inner expand tube and the outer expand tube respectively; a check ring is arranged at one end of the anchor rod body and welded with the rod body together; the other end of the anchor rod body runs through the center hole of the inner expand tube and is in threaded connection with a nut; and an anchor rod tray is arranged on the anchor rod body between the inner and outer expand tubes and the nut. Therefore, the expanded anchor rod has the advantages of low cost, convenient installation, primary tensile strength and low failure rate.
Description
Technical field: the present invention is specifically related to a kind of expanded anchor rod that is used for engineering supports such as mine working, roads and tunnels, water conservancy culvert.
Background technology: at present, various anchor poles in mine working, roads and tunnels, the use of water conservancy culvert, mainly play built-up arch, compound beam and suspention effect, come support reinforcement country rock on every side, thereby increase the intensity that country rock self bears pressure, it is a kind of support form of active, the present various anchor poles that use, the one, cost is higher, and trouble is installed, the 2nd, tensile strength is low, does not have initial tensile strength.
Summary of the invention: the purpose of this invention is to provide a kind of cost low, easy for installation, possess initial tensile strength and the low expanded anchor rod of crash rate.
Technical scheme of the present invention is: a kind of expanded anchor rod is characterized in that: by fitting face is that the conical surface is set in the interior expand tube of one and outer expand tube is formed, interior expand tube with outside the expand tube cylindrical on be provided with open slot; Anchor rod body one end establishes back-up ring and the body of rod is welded into one, and the other end is passed with nut by interior expand tube mesopore and is threaded, and the anchor rod body between inside and outside expand tube and the nut is provided with the anchor pole pallet.
Owing to adopt technique scheme, during use, the position of the open slot of interior expand tube and outer expand tube staggered be put in the petrosal foramen behind the suit, the anchor pole pallet is positioned at outside the petrosal foramen, when interior expand tube with outside expand tube is relative when sliding, interior expand tube is subjected to the extruding force of outer expand tube and shrinks, thereby expand tube produces powerful expansive force and by outer expand tube transmission the petrosal foramen wall is produced outside pressure in making, when tightening the hole exterior nut cap, anchor rod body produces axially outside pulling force, outer expand tube and petrosal foramen wall produce powerful frictional force, the effect that makes the rock mass between the expand tube and pallet outside be squeezed and reinforce, thereby reach and improve country rock and bear the purpose of mine pressure, thereby it is low to have a cost, easy for installation, possess initial tensile strength and crash rate low advantage.
Description of drawings: technical scheme of the present invention is described further below in conjunction with accompanying drawing and concrete enforcement.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1.
The specific embodiment: with reference to figure 1 and Fig. 2.A kind of expanded anchor rod is that interior expand tube 1 and the outer expand tube 2 that the conical surface is set in one formed by fitting face, interior expand tube 1 with outside expand tube 2 cylindricals on be provided with open slot 3,4; Anchor rod body 5 one ends establish back-up ring and the body of rod is welded into one, and the other end is passed with nut 6 by interior expand tube 1 mesopore and is threaded, and the anchor rod body 5 between inside and outside expand tube and the nut is provided with anchor pole pallet 7.During use, the position of the open slot of interior expand tube and outer expand tube staggered to be put in the petrosal foramen 8 behind the suit, and tightening nuts gets final product.
Claims (2)
1. expanded anchor rod is characterized in that: by fitting face is that interior expand tube (1) and the outer expand tube (2) that the conical surface is set in one formed, interior expand tube (1) and outside expand tube (2) cylindrical on be provided with open slot (3,4); Anchor rod body (5) one ends establish back-up ring and the body of rod is welded into one, and the other end is passed with nut (6) by interior expand tube (1) mesopore and is threaded, and the anchor rod body between inside and outside expand tube and the nut (5) is provided with anchor pole pallet (7).
2. by the described a kind of expanded anchor rod of claim 1, it is characterized in that: expand tube (1) is one with anchor rod body (5) in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100159407A CN101899988A (en) | 2009-05-26 | 2009-05-26 | Expanded anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100159407A CN101899988A (en) | 2009-05-26 | 2009-05-26 | Expanded anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101899988A true CN101899988A (en) | 2010-12-01 |
Family
ID=43225864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100159407A Pending CN101899988A (en) | 2009-05-26 | 2009-05-26 | Expanded anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101899988A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140925A (en) * | 2011-03-09 | 2011-08-03 | 安徽佳泰矿业科技有限公司 | Expansion type high-strength anchor rod |
| CN105386446A (en) * | 2015-10-16 | 2016-03-09 | 山东科技大学 | Steel wire rope anchoring device used in rock hole and anchoring method of steel wire rope anchoring device |
| CN106761865A (en) * | 2016-12-07 | 2017-05-31 | 山东太极龙塑胶科技有限公司 | A kind of cage cone section expanded anchor rod（Rope） |
-
2009
- 2009-05-26 CN CN2009100159407A patent/CN101899988A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140925A (en) * | 2011-03-09 | 2011-08-03 | 安徽佳泰矿业科技有限公司 | Expansion type high-strength anchor rod |
| CN105386446A (en) * | 2015-10-16 | 2016-03-09 | 山东科技大学 | Steel wire rope anchoring device used in rock hole and anchoring method of steel wire rope anchoring device |
| CN105386446B (en) * | 2015-10-16 | 2017-05-10 | 山东科技大学 | Steel wire rope anchoring device used in rock hole and anchoring method of steel wire rope anchoring device |
| CN106761865A (en) * | 2016-12-07 | 2017-05-31 | 山东太极龙塑胶科技有限公司 | A kind of cage cone section expanded anchor rod（Rope） |
| CN106761865B (en) * | 2016-12-07 | 2019-06-04 | 山东太极龙塑胶科技有限公司 | A kind of cage cone section expanded anchor rod (rope) |
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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: 20101201 |