CN205135680U - A dual anchor head that builds in of crossing multiple spot for rock mass tunnel is strutted - Google Patents
A dual anchor head that builds in of crossing multiple spot for rock mass tunnel is strutted Download PDFInfo
- Publication number
- CN205135680U CN205135680U CN201520850685.9U CN201520850685U CN205135680U CN 205135680 U CN205135680 U CN 205135680U CN 201520850685 U CN201520850685 U CN 201520850685U CN 205135680 U CN205135680 U CN 205135680U
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- CN
- China
- Prior art keywords
- rod
- bridging
- multiple spot
- steel
- anchor
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- 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
- 230000009977 dual effect Effects 0.000 title claims abstract description 21
- 239000011435 rock Substances 0.000 title abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 65
- 239000010959 steel Substances 0.000 claims abstract description 65
- 230000001737 promoting effect Effects 0.000 claims abstract description 9
- 230000008093 supporting effect Effects 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 description 21
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a dual anchor head that builds in of crossing multiple spot for rock mass tunnel is strutted, including stretching into the body of rod to the tunnel anchor eye in, the front end of the body of rod is provided with cone, its characterized in that: be provided with the steel axle on the body of rod, radial extension along the body of rod, the steel axle is outwardly directed by body of rod both sides, and each the articulated a set of main scissors of steel axle that is located body of rod both sides props, and each is organized main scissors and props and all include two coaxial articulated parallelogram steel sheets, still be provided with on the body of rod and be arranged in promoting respectively to organize main scissors and prop two parallelogram steel sheets and prop drive arrangement around steel axle pivoted owner scissors, when strutting the beginning, drive the parallelogram steel sheet that main scissors propped through drive arrangement and open in the embedding pore wall, form crossing multiple spot anchor mode, such multiple spot anchor just, it possesses easy and simple to handlely, and the atress is even, waits beneficial effect more greatly to the scope of strutting of rock mass.
Description
Technical field
The utility model belongs to geotechnical engineering support technology field, especially relates to the dual build-in anchor head of a kind of staggered form multiple spot for Rock Tunnel supporting.
Background technology
Anchor pole is the member system structure that Rock And Soil is reinforced, also be a kind of important form of the surrounding rock supportings such as tunnels and underground engineering, the concentrated anchoring fixing rock mass with the fastener of the anchor device of rock bolt head and afterbody is a kind of common anchoring support mode, overcome the shortcoming of rock mass resistance to tension well below anti-pressure ability, but, existing anchor pole has the following disadvantages: the usual anchor point of anchor head is single, anchoring property is not strong, easy generation anchoring interfacial failure destroys, and cannot realize the multi-faceted dual fail-safe anchoring of multiple spot.Therefore, how to guarantee the high strength anchoring of anchor head, the pulling test strength improving anchor pole is the technical problem that this area needs solution for a long time badly.
Utility model content
Goal of the invention of the present utility model is: for prior art Problems existing, a kind of anchor head multi-point-anchoring is provided, uniform force, large to rock mass support scope, and avoid producing to anchor bar body the dual build-in anchor head of the staggered form multiple spot for Rock Tunnel supporting that stress concentrates.
To achieve these goals, the technical solution adopted in the utility model is:
The dual build-in anchor head of a kind of staggered form multiple spot for Rock Tunnel supporting, comprise the body of rod that can stretch in tunnel anchor hole, the front end of the described body of rod is provided with cone, the described body of rod is provided with steel axle, the described radial direction along the body of rod extends, described steel axle is protruding by body of rod both sides, be positioned at each hinged one group of main bridging of steel axle of body of rod both sides, each group of main bridging includes two coaxial hinged parallelogram steel discs, the described body of rod is also provided with for promoting the main bridging drive unit that in each group of main bridging, two parallelogram steel discs rotate around steel axle.
Preferably, the top margin of described parallelogram steel disc and base can turn to the hole wall of tunnel anchor hole bonded to each other.Adopt such structure, under anchoring status, parallelogram steel disc fully contacts with hole wall, and anchoring effect is better.
Preferably, the top margin of described parallelogram steel disc and base are provided with sawtooth.Adopt such structure, winner's bridging can be made to contact tightr with tunnel anchor hole under anchoring status.
Preferably, the described body of rod is arranged with movable steel loop, described movable steel loop can slide axially along the body of rod, the both sides of described movable steel loop are respectively provided with the rivet of an outwardly convex, each rivet is all hinged with one group of secondary bridging, each group of secondary bridging includes two coaxial hinged parallelogram steel discs, the described body of rod is also provided with for promoting the secondary bridging drive unit that in each group of secondary bridging, two parallelogram steel discs rotate around steel axle.Adopt such structure, form because secondary bridging has certain thickness parallelogram steel disc by two groups, four, be distributed in movable steel loop both sides between two and linked by rivet, build-in has the intensive sawtooth of same thickness in the termination of hole wall with steel disc, initially open minimum angles and be greater than 30 °, only have when secondary bridging drive unit rotates, when single, double head round platform nut all contacts with steel disc, secondary bridging steel disc just can open.
Preferably, described secondary bridging drive unit comprises single head round platform nut.
Preferably, described main bridging drive unit is double end round platform nut, and described double end round platform nut is arranged between main bridging and secondary bridging.
Double end round platform nut is the assembly of two round platforms and a cylinder, head end is used for initiatively promoting opening and fixing of main bridging, end is for coordinating single head round platform nut, passively push opening and fixing of secondary bridging open, when rock mass support anchoring, the body of rod with build-in anchor head is put into pre-drilled hole, by double end round platform nut rotation, main bridging is driven to open until build-in is in hole wall, secondary bridging is placed on the body of rod, single head round platform nut rotation, final and double end round platform nut one works, by secondary bridging build-in in hole wall.
Preferably, the afterbody of described cone is provided with inverted cone shape and spirals tooth, and described inverted cone shape spirals between tooth and the body of rod and is provided with Anchor Agent.Adopt such structure, because the cone afterbody of lever front end to spiral tooth with inverted cone shape, in bullet-nose conical column structure, the action effect of anchoring end and Anchor Agent can be improved.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are: when supporting starts, the parallelogram steel disc of main bridging is driven to open until embed in hole wall by drive unit, form the multi-point-anchoring mode of staggered form, multi-point-anchoring so just, it possesses easy and simple to handle, uniform force, waits beneficial effect to the supporting scope of rock mass is larger.
Accompanying drawing explanation
Fig. 1 is that the main bridging of staggered form multiple spot of the present utility model dual build-in anchor head closes elevation;
Fig. 2 is that the secondary bridging of the dual build-in anchor head of staggered form multiple spot of the present utility model closes elevation;
Fig. 3 is that staggered form multiple spot of the present utility model dual build-in anchor head bridging opens elevation completely;
Fig. 4 is that staggered form multiple spot of the present utility model dual build-in anchor head bridging opens top view completely;
Fig. 5 is that staggered form multiple spot of the present utility model dual build-in anchor head bridging opens 1-1 sectional drawing completely;
Fig. 6 is that staggered form multiple spot of the present utility model dual build-in anchor head bridging opens 2-2 sectional drawing completely;
Fig. 7 is the elevation of main bridging;
Fig. 8 is the elevation of secondary bridging.
Mark in figure: cone-1, main bridging-2, steel axle-3, sawtooth-4, double end round platform nut-5, rivet-7, movable steel loop-8, secondary bridging-9, single head round platform nut-10.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figures 1 to 8, the present embodiment is used for the dual build-in anchor head of staggered form multiple spot of Rock Tunnel supporting, comprise the body of rod that can stretch in tunnel anchor hole, the front end of the body of rod is provided with cone 1, the body of rod is provided with steel axle 3, radial direction along the body of rod extends, steel axle 3 is protruding by body of rod both sides, be positioned at each hinged one group of main bridging 2 of steel axle 3 of body of rod both sides, each group of main bridging 2 includes two coaxial hinged parallelogram steel discs, the body of rod is also provided with for promoting main bridging 2 drive unit that in each group of main bridging 2, two parallelogram steel discs rotate around steel axle 3, the top margin of parallelogram steel disc and base can turn to the hole wall of tunnel anchor hole bonded to each other, under anchoring status, parallelogram steel disc fully contacts with hole wall, anchoring effect is better, the top margin of parallelogram steel disc and base are provided with sawtooth 4, winner's bridging 2 can be made to contact tightr with tunnel anchor hole under anchoring status, the afterbody of cone 1 is provided with inverted cone shape and spirals tooth, inverted cone shape spirals between tooth and the body of rod and is provided with Anchor Agent, because cone 1 afterbody of lever front end to spiral tooth with inverted cone shape, in bullet-nose conical column structure, the action effect of anchoring end and Anchor Agent can be improved.
In the present embodiment, the body of rod is arranged with movable steel loop 8, movable steel loop 8 can slide axially along the body of rod, the both sides of movable steel loop 8 are respectively provided with the rivet 7 of an outwardly convex, each rivet 7 is all hinged with one group of secondary bridging 9, each group of secondary bridging 9 includes two coaxial hinged parallelogram steel discs, the body of rod is also provided with for promoting secondary bridging 9 drive unit that in each group of secondary bridging 9, two parallelogram steel discs rotate around steel axle 3.Adopt such structure, form because secondary bridging 9 has certain thickness parallelogram steel disc by two groups, four, be distributed in movable steel loop 8 both sides between two and linked by rivet 7, build-in has the intensive sawtooth 4 of same thickness in the termination of hole wall with steel disc, initially open minimum angles and be greater than 30 °, only have when secondary bridging 9 drive unit rotates, when single, double head round platform nut 5 all contacts with steel disc, secondary bridging 9 steel disc just can open.
Concrete, secondary bridging 9 drive unit comprises single head round platform nut 10, main bridging 2 drive unit is double end round platform nut 5, double end round platform nut 5 is arranged between main bridging 2 and secondary bridging 9, wherein, double end round platform nut 5 is the assembly of two round platforms and a cylinder, head end is used for initiatively promoting opening and fixing of main bridging 2, end is for coordinating single head round platform nut 10, passively push opening and fixing of secondary bridging 9 open, when rock mass support anchoring, the body of rod with build-in anchor head is put into pre-drilled hole, rotated by double end round platform nut 5, main bridging 2 is driven to open until build-in is in hole wall, secondary bridging 9 is placed on the body of rod, single head round platform nut 10 rotates, final and double end round platform nut 5 one works, by secondary bridging 9 build-in in hole wall.
Adopt such structure, when supporting starts, the parallelogram steel disc of main bridging 2 is driven to open until embed in hole wall by drive unit, form the multi-point-anchoring mode of staggered form, multi-point-anchoring so just, it possesses easy and simple to handle, uniform force, waits beneficial effect to the supporting scope of rock mass is larger.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. the dual build-in anchor head of the staggered form multiple spot for Rock Tunnel supporting, comprise the body of rod that can stretch in tunnel anchor hole, the front end of the described body of rod is provided with cone, it is characterized in that: the described body of rod is provided with steel axle, radial direction along the described body of rod extends, described steel axle is protruding by body of rod both sides, be positioned at each hinged one group of main bridging of steel axle of body of rod both sides, each group of main bridging includes two coaxial hinged parallelogram steel discs, the described body of rod is also provided with for promoting the main bridging drive unit that in each group of main bridging, two parallelogram steel discs rotate around steel axle.
2. the dual build-in anchor head of the staggered form multiple spot for Rock Tunnel supporting according to claim 1, is characterized in that: top margin and the base of described parallelogram steel disc can turn to the hole wall of tunnel anchor hole bonded to each other.
3. the dual build-in anchor head of the staggered form multiple spot for Rock Tunnel supporting according to claim 1, is characterized in that: top margin and the base of described parallelogram steel disc are provided with sawtooth.
4. according to the described dual build-in anchor head of the staggered form multiple spot for Rock Tunnel supporting arbitrary in claims 1 to 3, it is characterized in that: the described body of rod is arranged with movable steel loop, described movable steel loop can slide axially along the body of rod, the both sides of described movable steel loop are respectively provided with the rivet of an outwardly convex, each rivet is all hinged with one group of secondary bridging, each group of secondary bridging includes two coaxial hinged parallelogram steel discs, the described body of rod is also provided with for promoting the secondary bridging drive unit that in each group of secondary bridging, two parallelogram steel discs rotate around steel axle.
5. the dual build-in anchor head of the staggered form multiple spot for Rock Tunnel supporting according to claim 4, is characterized in that: described secondary bridging drive unit comprises single head round platform nut.
6. the dual build-in anchor head of the staggered form multiple spot for Rock Tunnel supporting according to claim 5, it is characterized in that: described main bridging drive unit is double end round platform nut, described double end round platform nut is arranged between main bridging and secondary bridging.
7. the dual build-in anchor head of the staggered form multiple spot for Rock Tunnel supporting according to claim 6, is characterized in that: the afterbody of described cone is provided with inverted cone shape and spirals tooth, and described inverted cone shape spirals between tooth and the body of rod and is provided with Anchor Agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850685.9U CN205135680U (en) | 2015-10-29 | 2015-10-29 | A dual anchor head that builds in of crossing multiple spot for rock mass tunnel is strutted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850685.9U CN205135680U (en) | 2015-10-29 | 2015-10-29 | A dual anchor head that builds in of crossing multiple spot for rock mass tunnel is strutted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135680U true CN205135680U (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520850685.9U Expired - Fee Related CN205135680U (en) | 2015-10-29 | 2015-10-29 | A dual anchor head that builds in of crossing multiple spot for rock mass tunnel is strutted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205135680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356450A (en) * | 2017-07-12 | 2017-11-17 | 浙江科技学院 | The intelligent apparatus of Multi-working-surface fly-cutting field protolith structural plane |
-
2015
- 2015-10-29 CN CN201520850685.9U patent/CN205135680U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356450A (en) * | 2017-07-12 | 2017-11-17 | 浙江科技学院 | The intelligent apparatus of Multi-working-surface fly-cutting field protolith structural plane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jinniu District Kam Tong Road Chengdu city Sichuan province 610031 No. 16 Co-patentee after: SHENZHEN ZHONGTIEERJU ENGINEERING Co.,Ltd. Patentee after: China Railway Second Bureau Construction Co.,Ltd. Address before: Jinniu District Kam Tong Road Chengdu city Sichuan province 610031 No. 16 Co-patentee before: SHENZHEN ZHONGTIEERJU ENGINEERING Co.,Ltd. Patentee before: CHINA RAILWAY NO.2 ENGINEERING GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190801 Address after: Jinniu District Kam Tong Road Chengdu city Sichuan province 610031 No. 16 Co-patentee after: SHENZHEN ZHONGTIEERJU ENGINEERING Co.,Ltd. Patentee after: CHINA RAILWAY NO.2 ENGINEERING GROUP Co.,Ltd. Address before: Jinniu District Kam Tong Road Chengdu city Sichuan province 610031 No. 16 Co-patentee before: SHENZHEN ZHONGTIEERJU ENGINEERING Co.,Ltd. Patentee before: China Railway Second Bureau Construction Co.,Ltd. |
|
| 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: 20160406 |