CN204532397U - Novel belt rectangular ports stress concentrates the grouted anchor bar of limit collar - Google Patents
Novel belt rectangular ports stress concentrates the grouted anchor bar of limit collar Download PDFInfo
- Publication number
- CN204532397U CN204532397U CN201520159151.1U CN201520159151U CN204532397U CN 204532397 U CN204532397 U CN 204532397U CN 201520159151 U CN201520159151 U CN 201520159151U CN 204532397 U CN204532397 U CN 204532397U
- Authority
- CN
- China
- Prior art keywords
- rod
- anchor bar
- limit collar
- grouted anchor
- rectangular ports
- 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
Links
- 239000012141 concentrate Substances 0.000 title claims abstract description 33
- 239000002002 slurry Substances 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 21
- 239000011440 grout Substances 0.000 claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000011435 rock Substances 0.000 description 7
- 239000003245 coal Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to the grouted anchor bar that a kind of Novel belt rectangular ports stress concentrates limit collar, comprises round square nut, plastic washer, metal washer, pallet, the body of rod, slurry outlet, grout outlet and rectangular ports stress and concentrates limit collar; Circle square nut is tightened at body of rod afterbody, and plastic washer, metal washer, pallet to be enclosed within successively on the body of rod and to connect with circle square nut, longitudinally has slurry outlet, the grouted anchor bar body of rod is evenly equipped with the grout outlet be communicated with slurry outlet in the body of rod; The outside weldings of grout outlet has rectangular ports stress to concentrate limit collar, rectangular ports stress concentrates the main body of limit collar to be a metal ring, cross stiffening girder is provided with in metal ring, the internal diameter of metal ring is not less than the bore of grout outlet, this grouted anchor bar solves grouted anchor bar weakens body of rod supporting capacity due to the impact of slurry outlet, can ensure that again slurries flow out smoothly in body simultaneously.This utility model method is simple, easy for installation, effectively improves the supporting capacity of grouted anchor bar.
Description
Technical field
The utility model relates to the grouted anchor bar that a kind of Novel belt rectangular ports stress concentrates limit collar, belongs to field of mining.
Background technology
Along with the development of China coal industry, many mining areas are all more and more running into weak broken rock stratum in varying degrees, and this kind of rock stratum has the characteristic such as expansion, stream change, and degree of consolidation is poor, and this makes soft-rock tunnel be regarded as the difficult point of coal mine support always.A large amount of engineering practices proves, bolting and grouting support is the effective mode of one safeguarding that this kind of roadway surrounding rock is stable.
Because wall-rock crack is grown, after roadway excavation, country rock produces and loosens, and causes intensity to reduce.After bolt grouting is reinforced, the mechanical properties such as Surrounding Rock Strength can improve and improve.Grouted anchor bar is due to the body of rod being furnished with slurry outlet, and due to the impact in hole, destroy the original mechanical structure of the body of rod, the body of rod is weakened, stress can be caused to increase and remitted its fury, thus reduce the supporting capacity of the body of rod.When grouted anchor bar is arranged in tunnel, anchor pole deformed in tension, is easily pulled off in slurry outlet position.
Utility model content
In order to solve the problem, the utility model proposes the grouted anchor bar that a kind of Novel belt rectangular ports stress concentrates limit collar, solve grouted anchor bar weakens body of rod supporting capacity due to the impact of slurry outlet, can ensure that again slurries flow out smoothly in body simultaneously.This utility model method is simple, easy for installation, effectively improves the supporting capacity of grouted anchor bar.
The utility model solves the technical scheme that its technical problem adopts: a kind of Novel belt rectangular ports stress concentrates the grouted anchor bar of limit collar, comprises round square nut, plastic washer, metal washer, pallet, the body of rod, slurry outlet, grout outlet and rectangular ports stress and concentrates limit collar; Described round square nut is tightened at body of rod afterbody, and described plastic washer, metal washer, pallet to be enclosed within successively on the body of rod and to connect with circle square nut, longitudinally has slurry outlet, the described grouted anchor bar body of rod is evenly equipped with the grout outlet be communicated with slurry outlet in the described body of rod; The outside weldings of described grout outlet has rectangular ports stress to concentrate limit collar, and described rectangular ports stress concentrates the main body of limit collar to be a metal ring, is provided with cross stiffening girder in metal ring, and the internal diameter of described metal ring is not less than the bore of grout outlet.
Described rectangular ports stress concentrates limit collar to be spirally distributed on the body of rod of grouted anchor bar, has both improve the intensity of anchor pole, can save material again.
Described rectangular ports stress concentrates limit collar material to be 38CrMoAl, and its yield strength is 835MPa, and tensile strength is 980MPa, higher than the strength of materials of the grouted anchor bar body of rod body of rod.
The beneficial effects of the utility model are: a kind of Novel belt rectangular ports stress concentrates the grouted anchor bar of limit collar, solve grouted anchor bar weakens body of rod supporting capacity due to the impact of slurry outlet, can ensure that again slurries flow out smoothly in body simultaneously.This utility model method is simple, easy for installation, effectively improves the supporting capacity of grouted anchor bar.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation that a kind of Novel belt rectangular ports stress concentrates the grouted anchor bar of limit collar.
Fig. 2 is the structural representation that rectangular ports stress concentrates limit collar.
In figure, 1. justify square nut, 2. plastic washer, 3. metal washer, 4. pallet, the 5. body of rod, 6. slurry outlet, 7. rectangular ports stress concentrates limit collar, 8. grout outlet.
Detailed description of the invention
In the drawings, a kind of Novel belt rectangular ports stress concentrates the grouted anchor bar of limit collar, comprises round square nut 1, plastic washer 2, metal washer 3, pallet 4, the body of rod 5, slurry outlet 6, grout outlet 8 and rectangular ports stress and concentrates limit collar 7; Described round square nut 1 is tightened at the body of rod 5 afterbody, described plastic washer 2, metal washer 3, pallet 4 to be enclosed within successively on the body of rod 5 and to connect with circle square nut 1, longitudinally have slurry outlet 6 in the described body of rod 5, the described grouted anchor bar body of rod 5 is evenly equipped with the grout outlet 8 be communicated with slurry outlet 6; The outside weldings of described grout outlet 8 has rectangular ports stress to concentrate limit collar 7, and described rectangular ports stress concentrates the main body of limit collar 7 to be a metal ring, is provided with cross stiffening girder in metal ring, and the internal diameter of described metal ring is not less than the bore of grout outlet 8.
Described rectangular ports stress concentrates limit collar 7 to be spirally distributed on the body of rod 5 of grouted anchor bar, has both improve the intensity of anchor pole, and can save material again.
Described rectangular ports stress concentrates limit collar 7 material to be 38CrMoAl, and its yield strength is 835MPa, and tensile strength is 980MPa, higher than the strength of materials of the grouted anchor bar body of rod 5 body of rod.
During use, after grouting pump starts, slurries concentrate limit collar 7 to flow in rock along injected hole 6 by grouting port 8 or rectangular ports stress to reach, anchor gazes at.
Claims (3)
1. Novel belt rectangular ports stress concentrates a grouted anchor bar for limit collar, comprises round square nut, plastic washer, metal washer, pallet, the body of rod, slurry outlet, grout outlet and rectangular ports stress and concentrates limit collar; Described round square nut is tightened at body of rod afterbody, described plastic washer, metal washer, pallet to be enclosed within successively on the body of rod and to connect with circle square nut, longitudinally have slurry outlet in the described body of rod, it is characterized in that, the described grouted anchor bar body of rod is evenly equipped with the grout outlet be communicated with slurry outlet; The outside weldings of described grout outlet has rectangular ports stress to concentrate limit collar, and described rectangular ports stress concentrates the main body of limit collar to be a metal ring, is provided with cross stiffening girder in metal ring, and the internal diameter of described metal ring is not less than the bore of grout outlet.
2. a kind of Novel belt rectangular ports stress according to claim 1 concentrates the grouted anchor bar of limit collar, and it is characterized in that, described rectangular ports stress concentrates limit collar to be spirally distributed on the body of rod of grouted anchor bar.
3. a kind of Novel belt rectangular ports stress according to claim 1 concentrates the grouted anchor bar of limit collar, it is characterized in that, described rectangular ports stress concentrates limit collar material to be 38CrMoAl, and its yield strength is 835MPa, and tensile strength is 980MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520159151.1U CN204532397U (en) | 2015-03-20 | 2015-03-20 | Novel belt rectangular ports stress concentrates the grouted anchor bar of limit collar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520159151.1U CN204532397U (en) | 2015-03-20 | 2015-03-20 | Novel belt rectangular ports stress concentrates the grouted anchor bar of limit collar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204532397U true CN204532397U (en) | 2015-08-05 |
Family
ID=53746419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520159151.1U Expired - Fee Related CN204532397U (en) | 2015-03-20 | 2015-03-20 | Novel belt rectangular ports stress concentrates the grouted anchor bar of limit collar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204532397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814714A (en) * | 2020-12-08 | 2021-05-18 | 绍兴文理学院 | Prestressed full-length anchoring hollow grouting anchor rod with tensioning and expanding effect |
-
2015
- 2015-03-20 CN CN201520159151.1U patent/CN204532397U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814714A (en) * | 2020-12-08 | 2021-05-18 | 绍兴文理学院 | Prestressed full-length anchoring hollow grouting anchor rod with tensioning and expanding effect |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20160320 |