CN2514115Y - Expansion-type telescopic metallic anchor rod - Google Patents
Expansion-type telescopic metallic anchor rod Download PDFInfo
- Publication number
- CN2514115Y CN2514115Y CN 01263570 CN01263570U CN2514115Y CN 2514115 Y CN2514115 Y CN 2514115Y CN 01263570 CN01263570 CN 01263570 CN 01263570 U CN01263570 U CN 01263570U CN 2514115 Y CN2514115 Y CN 2514115Y
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- sleeve pipe
- bushing
- rod
- expansion
- 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.)
- Expired - Fee Related
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a metal anchor rod mainly functioning as supporting in the laneways of a coal mine, an underground project, etc. A conical frustum is arranged on the outer end of the anchor rod body, a bushing is nested on the anchor rod, the bushing mouth tightening the end of the conical frustum is a flare opening matching the conical frustum of the anchor rod body, and a supporting plate is nested on the bushing. Utilizing the extensibility of metal materials, the utility model realizes the relative elongation between the anchor rod body and the bushing by the bulging function of the conical frustum and the bulge of the bushing. The elongation of the anchor rod is not restricted and can be designed according to the usage requirements. The installation and the use of the anchor rod do not need thread connectors, so the utility model belongs to a fully equal strength anchor rod.
Description
The utility model relates to a kind of anchor metal that coal mine roadway, underground construction etc. play support action that is mainly used in.
After coal mine roadway or underground construction are opened control, geostatic stress generation disturbance and redistribution, tunnel or underground engineering wall rock will produce release, become flexible, destroy even collapse.For protection tunnel and geotechnical engineering and underground structure safety, must carry out supporting.Anchor metal is mainly used in supporting fields such as coal mine roadway, underground construction.Common bolt is made up of the body of rod, supporting plate and nut.The stretched anchor pole of domestic research mainly contains: aperture spring compressibility anchor pole, the waveform anchor pole that can stretch, the friction steel pipe type anchor pole that can stretch.The existing anchor pole that can stretch, though all there is weak point in varying degrees in the axial elongation all can be implemented in duty the time, as aperture spring compressibility anchor pole, its exposed parts is long, and the compressed elastic force of spring is low, and the compressible amount of spring is little; The waveform anchor pole that can stretch, processed complex, but amount of tension is little, and waveform segment intensity is low; The friction steel pipe type anchor pole that can stretch, frictional resistance is low and reduce gradually along with the stretching of anchor pole.In addition, the above-mentioned anchor pole that stretches all adopts and is threaded, and has weakened the Fracture Force of anchor rod body.
At problems of the prior art, the utility model provide do not have in a kind of the installing and using be threaded, elongation is unrestricted can be according to the extending anchor metal of instructions for use design.
Technical solution is so particularly:
The extending anchor metal of expansion-type, comprise the body of rod, supporting plate, it is characterized in that: body of rod outer end has been provided with the frustum of a cone of bloated expansion effect, be arranged with sleeve pipe on the body of rod, one end of sleeve pipe has fastening round platform, the sleeve pipe mouth of pipe of fastening round platform end is the horn mouth that cooperates with the frustum of a cone on the body of rod, and the other end of sleeve pipe radially has the boss of position-limiting action together, and supporting plate is set on the sleeve pipe.
The utility model utilizes the ductility of metal material, by the bloated expansion effect of cone table and the expansible expansion property of sleeve pipe, realizes the relative elongation between the body of rod and the sleeve pipe.And the elongation between the body of rod and the sleeve pipe is extending continuously under constant stretching force effect.
The elongation of this anchor pole is unrestricted, can design according to instructions for use, and the elongation of anchor pole can adapt with the distortion of various country rocks.
Anchor pole need not threaded connector in installing and using, belong to equal strength anchor rod completely.When anchor pole is installed, saved the nut installation procedure, eliminated the uncertain human factor during the anchor pole pretension is installed, bolt pretension is reliable and stable.Compare with existing various screw threads for fastening anchor poles, under the identical situation of body of rod diameter, can improve the rupture strength 15%～20% of anchor pole.
Fig. 1 is the utility model structural representation,
Fig. 2 is the partial enlarged drawing of Fig. 1.
Below in conjunction with accompanying drawing, the utility model is further described.
As seen from Figure 1, the extending anchor metal of this expansion-type comprises the body of rod 1, sleeve pipe 2 and supporting plate 3.There is the frustum of a cone of the expansion effect of expanding together the body of rod 1 outer end, and this cone is to expand and expands body.Suit sleeve pipe 2 on the body of rod 1, and an end of sleeve pipe has the fastening round platform of evagination radially, and the sleeve pipe mouth of pipe of fastening round platform end is the horn mouth that cooperates with the frustum of a cone on the body of rod, and this sleeve pipe 2 is to be expanded and expands body; The other end of sleeve pipe radially has the boss of position-limiting action together, and supporting plate 3 is sleeved on the sleeve pipe 2.
In the use, the body of rod 1 passes sleeve pipe 2 and is anchored at anchor structure in the inner formation of rock mass, and sleeve pipe 2 is anchored at the rock mass surface by supporting plate 3 and constitutes outer anchor structure.In the work, when the stretching force of anchor pole reached its specified anchored force, the bloated expansion frustum of a cone of anchor rod body 1 produced the diffusion power that expands to sleeve pipe 2, made the expansion of sleeve pipe 2 internal diameters; After the sleeve pipe 2 internal diameters expansions, produce relative slip, the continuous elongation of realization rock-bolt length between the body of rod 1 and the sleeve pipe 2.The pressure that expands designs according to specified anchored force because sleeve pipe is expanded, thereby is certain.During the anchor pole elongation, the anchored force of anchor pole is still constant.That is to say that anchor pole is a continuous elongation under the state of constant stretching force.When the elongation of anchor pole arrives the elongation of design permission, under the effect of sleeve pipe other end boss, can not be expanded and be expanded, the elongation of anchor pole is limited.
Claims (1)
1, the extending anchor metal of expansion-type, comprise the body of rod, supporting plate, it is characterized in that: body of rod outer end has been provided with the frustum of a cone of bloated expansion effect, be arranged with sleeve pipe on the body of rod, one end of sleeve pipe has fastening round platform, the sleeve pipe mouth of pipe of fastening round platform end is the horn mouth that cooperates with the frustum of a cone on the body of rod, and the other end of sleeve pipe radially has the boss of position-limiting action together, and supporting plate is set on the sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01263570 CN2514115Y (en) | 2001-10-31 | 2001-10-31 | Expansion-type telescopic metallic anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01263570 CN2514115Y (en) | 2001-10-31 | 2001-10-31 | Expansion-type telescopic metallic anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2514115Y true CN2514115Y (en) | 2002-10-02 |
Family
ID=33671132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01263570 Expired - Fee Related CN2514115Y (en) | 2001-10-31 | 2001-10-31 | Expansion-type telescopic metallic anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2514115Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858225A (en) * | 2010-06-10 | 2010-10-13 | 北京中矿深远能源环境科学研究院 | Constant resistance and large deformation anchor rod |
| CN104564115A (en) * | 2015-01-29 | 2015-04-29 | 武汉武大巨成结构股份有限公司 | Sleeve-type inside anchor |
| CN107489437A (en) * | 2017-09-26 | 2017-12-19 | 湖南科技大学 | A kind of anchor pole and anchoring process for deep tunnel soft-rock slope |
| CN111455980A (en) * | 2020-04-20 | 2020-07-28 | 浙江大学城市学院 | Prefabricated anti-floating pile structure suitable for underground engineering and construction method |
-
2001
- 2001-10-31 CN CN 01263570 patent/CN2514115Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858225A (en) * | 2010-06-10 | 2010-10-13 | 北京中矿深远能源环境科学研究院 | Constant resistance and large deformation anchor rod |
| CN101858225B (en) * | 2010-06-10 | 2011-10-12 | 北京中矿深远能源环境科学研究院 | Constant resistance and large deformation anchor rod |
| US20130115013A1 (en) * | 2010-06-10 | 2013-05-09 | Manchao He | Constant-resistance large-deformation anchor rod |
| US8974151B2 (en) * | 2010-06-10 | 2015-03-10 | Manchao He | Constant-resistance large-deformation anchor rod |
| CN104564115A (en) * | 2015-01-29 | 2015-04-29 | 武汉武大巨成结构股份有限公司 | Sleeve-type inside anchor |
| CN107489437A (en) * | 2017-09-26 | 2017-12-19 | 湖南科技大学 | A kind of anchor pole and anchoring process for deep tunnel soft-rock slope |
| CN111455980A (en) * | 2020-04-20 | 2020-07-28 | 浙江大学城市学院 | Prefabricated anti-floating pile structure suitable for underground engineering and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |