CN201753447U - Expansion type anchoring head and anchor rod thereof - Google Patents
Expansion type anchoring head and anchor rod thereof Download PDFInfo
- Publication number
- CN201753447U CN201753447U CN2010201945941U CN201020194594U CN201753447U CN 201753447 U CN201753447 U CN 201753447U CN 2010201945941 U CN2010201945941 U CN 2010201945941U CN 201020194594 U CN201020194594 U CN 201020194594U CN 201753447 U CN201753447 U CN 201753447U
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- shell
- intermediate plate
- rises
- lobes
- expansion
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- 238000004873 anchoring Methods 0.000 title claims abstract description 32
- 230000000630 rising effect Effects 0.000 claims description 8
- 241001391944 Commicarpus scandens Species 0.000 abstract 1
- 238000007569 slipcasting Methods 0.000 description 20
- 239000007787 solid Substances 0.000 description 5
- 206010058109 Hangnail Diseases 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model discloses an expansion type anchoring head, which comprises an expansion inner wedge and two expansion clamp plates. The expansion inner wedge consists of a rod connecting section and a chute section, the two expansion clamp plates match with the chute section and are fixed onto the expansion inner wedge through an inverted U-shaped anti-skidding clamp, and two clamp arms of the inverted U-shaped anti-skidding clamp are axially arranged along the expansion inner wedge and are respectively fixed on the two expansion clamp plates. The utility model further discloses an anchor rod, which comprises an anchoring head and an anchor rod body, and the structure of the anchoring head is identical to the above structure. The two expansion clamp plates are fixed onto the expansion inner wedge via the inverted U-shaped anti-skidding clamp, the tension force of the inverted U-shaped anti-skidding clamp is lower, and the two expansion clamp plates are easy to break limitation of the inverted U-shaped anti-skidding clamp to slide along the expansion inner wedge, so that the anchoring head is expanded.
Description
Technical field
The utility model belongs to geotechnical engineering anchoring support technical field, relates in particular to a kind of expansion shell type anchoring head and anchor pole thereof.
Background technology
Existing expansion shell type anchoring head mainly contains following two kinds of forms:
1. the structure of expansion shell type anchoring head does not possess the slip casting function, and it cooperates solid anchor bar body to form the solid anchor pole of expansion shell type, and this anchor pole is behind the shell end anchorage that rises, and full anchor pole section can not be carried out grouting behind shaft or drift lining, so be used in the temporary lining more.As disclosed anchor poles such as United States Patent (USP)s 6146055,5762451,5441372.
2. expansion shell type anchoring head is designed to have anchoring function and slip casting function.Chinese patent 200310108547.5 discloses a kind of expansion type rock bolt, form by expansion shell type anchoring head, anchor bar body, bearing plate, clamp nut, packing ring, connecting pipe, described expansion shell type anchoring head is made up of wedge in the shell that rises and the two lobes shell intermediate plate that rises, the shell intermediate plate that rises is fixed in the both-side opening groove of wedge in the shell that rises by the colligation rope, the wedge bottom is connected with anchor bar body in the described shell that rises, the both sides, top are open slot, and the open slot upper center has the inclined-plane wedge, form two-sided wedge shape sliding tray; The shell intermediate plate inboard of rising has the inclined-plane that matches with the inclined-plane wedge; The anchor bar body top enters in the shell that rises and can cooperate with the shell intermediate plate lower surface of rising behind the wedge.Expansion shell type anchoring head is designed to have anchoring function and slip casting channel function.But can form support anchoring power and stretch-draw prestressing force so have rapidly after the anchor pole of this expansion shell type anchoring head is installed, control rock mass deformation can be carried out slip casting again, make anchor pole total length and rock stratum fixed, so can make permanent support, can be used as temporary lining again, applicable to the supporting of most stone matter wall rock condition.
This technology has been widely used in the actual engineering, and effect is remarkable.But when skyhook, also come with some shortcomings: as will impacting and the drill instrument (as pneumatic pusher leg drill) of spinfunction opens expansion shell type anchoring head by band, and the formation anchored force.To as on the streamline of TBM machine platform driving the skyhook working space hour just inconvenience is installed; Secondly, when less and anchor pole aperture, petrosal foramen aperture is relatively large when the user selects petrosal foramen aperture and bolt diameter very not to mate, the situation that injection speed influences skyhook efficient slowly takes place easily.
Summary of the invention
The utility model provides a kind of expansion shell type anchoring head, has solved the problem that existing anchorage head opens difficulty.
A kind of expansion shell type anchoring head, comprise wedge in the shell of forming by body of rod linkage section and chute section that rises and two lobes that match with the chute section shell intermediate plate that rises, the described two lobes shell intermediate plate that rises is fixed in the shell that rises on the wedge by an inverted U antiskid card, and two jig arm of inverted U antiskid card axially are provided with and are separately fixed at two lobes along wedge in the shell that rises and rise on the shell intermediate plate.
Described two jig arm ends outwards turn down, and form hangnail, and the shell intermediate plate that rises when preventing to install moves to the installing hole oral area.
Described two lobes rise and rise that the outer wall of wedge is provided with two sections longitudinal ribs in the shell between the shell intermediate plate, improve the intensity of wedge in the shell that rises.
Described two sections longitudinal ribs extend to body of rod linkage section free end, forming two is the guiding gutter of bottom surface with body of rod linkage section outer wall, a described end that rises by the close body of rod linkage section of shell intermediate plate is provided with a breach, make the anchorage head inner chamber be communicated with guiding gutter, form slip casting and exhaust passage, help improving injection speed.
Described two jig arm are separately fixed at two lobes and rise on the inwall of shell intermediate plate, and the end outwards turns down and passes the two lobes shell intermediate plate that rises by breach respectively, does not need the shell intermediate plate that rises is processed separately, and is easy for installation.
Described two jig arm are separately fixed at two lobes and rise on the outer wall of shell intermediate plate, and correspondingly the two lobes shell intermediate plate outer wall central authorities of rising have the longitudinal fluting that holds two jig arm, avoid installing hole internal friction antiskid card.
The described two lobes flexible circle of shell intermediate plate overcoat that rises, the shell intermediate plate further fixedly rises.
The described two lobes shell intermediate plate outer wall that rises is provided with pawl, improves the anchoring ability of anchorage head.
The present invention also provides a kind of anchor pole, comprise anchor bar body and anchorage head, anchorage head comprises rise in the shell wedge and the two lobes shell intermediate plate that rises, the wedge in the shell of rising is formed by the body of rod linkage section that is connected with anchor bar body and with the two lobes chute section that the shell intermediate plate matches that rises, the described two lobes shell intermediate plate that rises is fixed in the shell that rises on the wedge by an inverted U antiskid card, and two jig arm of inverted U antiskid card axially are provided with and are separately fixed at two lobes along wedge in the shell that rises and rise on the shell intermediate plate.
The present invention utilizes the inverted U antiskid card that the two lobes shell intermediate plate that rises is fixed in the shell that rises on the wedge, because the tensile force of inverted U antiskid card is less, two lobes rise that the shell intermediate plate is broken through its restriction easily and slide along wedge in the shell that rises, and make anchorage head open.
Description of drawings
Fig. 1 is the structural representation of the utility model anchorage head;
Fig. 2 is the blast structural representation of the utility model anchorage head;
Fig. 3 is the structural representation of the another kind of embodiment of the utility model anchorage head;
Structural representation when Fig. 4 adopts the hollow bolt body for the utility model anchor pole;
Fig. 5 for the utility model anchor pole adopt in structural representation during solid anchor bar body;
Fig. 6 is that anchor pole shown in Figure 4 is installed in the elevation in the stratum.
The specific embodiment
As shown in the figure, a kind of expansion shell type anchoring head, comprise rise in the shell wedge 2 and the two lobes shell intermediate plate 1 that rises, the interior wedge 2 of the shell that rises is made up of the body of rod linkage section 21 and the chute section 22 of hollow cylindrical, chute section 12 both sides are provided with chute 20, chute 20 is hollowed out near body of rod linkage section 21 1 bottom faces, is communicated with the inner chamber of body of rod linkage section 21, and other end bottom surface is the inclined-plane.The shell intermediate plate 1 that correspondingly rises is provided with the projection 10 that matches with chute 20 near wedge 2 in the shell that rises, projection 10 wedge 2 one sides in the shell that rises are similarly the inclined-plane, two over against the center, inclined-plane be equipped with groove, two grooves surround the slip casting steam vent that is communicated with body of rod linkage section 21 inner chambers, and this structure is identical with 200310108547.5 disclosed structures.
The two lobes antiskid card 3 of shell intermediate plate 1 by an inverted U that rise is fixed in the shell that rises on the wedge 2, two jig arm 31 of antiskid card 3 are fixed on two lobes by screw 32 respectively and rise on the outer wall of shell intermediate plate 1, for fear of installing hole friction antiskid card 3, on rising by shell intermediate plate 1 outer wall, two lobes offer the longitudinal fluting 11 that holds jig arm 31, withdraw from simultaneously for the shell intermediate plate 1 that prevents to rise, the end of jig arm 31 is outwards turned down, form hangnail.
Wedge 2 major parts are all cut out in the shell because rise, intensity is lower, wedge 2 is provided with two sections longitudinal ribs 23 in two lobes rise by the shell that rises between the shell intermediate plate 1, longitudinal rib 23 can extend to the free end end of body of rod linkage section 21 always, just having formed with body of rod linkage section 21 outer walls between such two sections longitudinal ribs 23 is the gathering sill 24 of bottom surface, and gathering sill 24 is just on two lobes rise by the length direction of shell intermediate plate 1.Offer breach 12 at the shell intermediate plate 1 that rises near body of rod linkage section 21 1 end ends, can make the slip casting channel connection of gathering sill 24 and anchorage head inside, improve injection speed.
Two jig arm 31 of antiskid card 3 can certainly be fixed in the groove of shell intermediate plate 1 inwall that rises, the jig arm 31 ends outwards part of turnover just pass the shell intermediate plate 1 that rises from breach 12, the same hangnail that forms reaches the purpose that stops the shell intermediate plate 1 that rises to move to the installing hole oral area.For the shell intermediate plate 1 that further fixedly rises, can be outside the shell intermediate plate 1 that rises sheathed elastic ring 13.The outer wall of shell intermediate plate of rising in the present embodiment is provided with the pawl structure, and pawl shape and distribute can be various can certainly the selective light face.
Shown in Fig. 4～6, a kind of anchor pole, this anchor pole has used above-mentioned expansion shell type anchoring head, also comprises anchor bar body 7, backing plate 6, packing ring 5a, nut 5, slip casting stack 4 and stop grouting plug 8.Wherein anchor bar body 7 one ends are threaded with body of rod linkage section 21.Backing plate 6, packing ring 5a, nut 5 once are set on the other end of anchor bar body 7, have the through hole that passes through for slip casting stack 4 on the backing plate 6.
When anchor bar body 7 was hollow, the inner chamber of anchor bar body 7, the inner chamber of anchorage head and gathering sill 24 were connected.When anchor bar body 7 is used for permanent support for the solid body of rod and anchor pole, on backing plate, insert slip casting stack 9, slip casting stack 9 stretches into installing hole one end and extends near the anchorage head, when being used for temporary lining, slip casting stack 9 can be installed.
When anchor pole position hollow, it is as follows that anchor pole is installed and used process:
Bore installing hole 100 and clean with rig, place anchor bar body 7 and anchorage head in the installing hole together, then backing plate 6, packing ring 5a, nut 5, slip casting stack 4 and stop grouting plug 8 are installed on the anchor bar body 7, use spanner nutting 5 then, anchor bar body 7 inwardly moves, promotion rise shell intermediate plate 1 also inwardly the motion, because it moves along the inclined-plane, the rise spacing of shell intermediate plate 1 of two lobes constantly enlarges in the motion process, form anchored force with installing hole 100 inwalls, because the hangnail effect that gets of jig arm 31 bending ends makes anchorage head can not withdraw to the installing hole oral area.When anchor pole is installed downwards, use the cavity of anchor bar body 7 to carry out slip casting, when anchor pole is upwards installed, use slip casting stack 4 to carry out slip casting.
When anchor bar body when being solid, installation process when anchor pole is installed, uses slip casting stack 9 to carry out slip casting with the hollow anchor bar body downwards, when anchor pole is upwards installed, uses slip casting stack 4 to carry out slip casting.
Claims (9)
1. expansion shell type anchoring head, comprise two lobes of forming by body of rod linkage section (21) and chute section (22) that rise by wedge (2) in the shell and the match shell intermediate plate (1) that rises with chute section (22), it is characterized in that: the described two lobes shell intermediate plate (1) that rises is fixed on by an inverted U antiskid card (3) and rises in the shell on the wedge (2), and two jig arm (31) of inverted U antiskid card (3) axially are provided with and are separately fixed at two lobes along wedge (2) in the shell that rises and rise on the shell intermediate plate (1).
2. expansion shell type anchoring head according to claim 1 is characterized in that: described two jig arm (31) end outwards turns down.
3. expansion shell type anchoring head according to claim 1 is characterized in that: described two lobes rise and rise that the outer wall of wedge (2) is provided with two sections longitudinal ribs (23) in the shell between the shell intermediate plate (1).
4. expansion shell type anchoring head according to claim 3, it is characterized in that: described two sections longitudinal ribs (23) extend to body of rod linkage section (21) free end, forming two is the guiding gutter (24) of bottom surface with body of rod linkage section (21) outer wall, a described end that rises by the close body of rod linkage section of shell intermediate plate (1) is provided with a breach (12), makes the anchorage head inner chamber be communicated with guiding gutter (24).
5. expansion shell type anchoring head according to claim 4 is characterized in that: described two jig arm (31) are separately fixed at two lobes and rise on the inwall of shell intermediate plate (1), and the end outwards turns down and passes the two lobes shell intermediate plate (1) that rises by breach (12) respectively.
6. expansion shell type anchoring head according to claim 1, it is characterized in that: described two jig arm (31) are separately fixed at two lobes and rise on the outer wall of shell intermediate plate (1), and correspondingly two lobes shell intermediate plate (1) the outer wall central authorities of rising have the longitudinal fluting (11) that holds two jig arm (31).
7. expansion shell type anchoring head according to claim 1 is characterized in that: the described two lobes flexible circle of shell intermediate plate (1) overcoat (13) that rises.
8. expansion shell type anchoring head according to claim 1 is characterized in that: described two lobes shell intermediate plate (1) outer wall that rises is provided with pawl.
9. anchor pole, comprise anchor bar body (7) and anchorage head, anchorage head comprises rise in the shell wedge (2) and the two lobes shell intermediate plate (1) that rises, the wedge (2) in the shell of rising is formed by the body of rod linkage section (21) that is connected with anchor bar body (7) and with the two lobes chute section (22) that shell intermediate plate (1) matches that rises, it is characterized in that: the described two lobes shell intermediate plate (1) that rises is fixed on by an inverted U antiskid card (3) and rises in the shell on the wedge (2), and two jig arm (31) of inverted U antiskid card (3) axially are provided with and are separately fixed at two lobes along wedge (2) in the shell that rises and rise on the shell intermediate plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201945941U CN201753447U (en) | 2010-05-18 | 2010-05-18 | Expansion type anchoring head and anchor rod thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201945941U CN201753447U (en) | 2010-05-18 | 2010-05-18 | Expansion type anchoring head and anchor rod thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201753447U true CN201753447U (en) | 2011-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201945941U Expired - Lifetime CN201753447U (en) | 2010-05-18 | 2010-05-18 | Expansion type anchoring head and anchor rod thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201753447U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824996A (en) * | 2010-05-18 | 2010-09-08 | 杭州图强工程材料有限公司 | Expansion shell type anchoring head and anchor rod with the same |
| CN105114110A (en) * | 2015-09-21 | 2015-12-02 | 洛阳中岩工程材料有限公司 | Novel slide way type expanding-shell anchor head |
| CN106320610A (en) * | 2016-10-31 | 2017-01-11 | 洛阳中岩工程材料有限公司 | Top ring type expanding shell anchor head |
| CN106351681A (en) * | 2016-11-29 | 2017-01-25 | 洛阳中岩工程材料有限公司 | Slideway type expanding-shell anchor rod capable of automatically expanding lobes |
| CN109707425A (en) * | 2019-03-12 | 2019-05-03 | 中铁隆昌铁路器材有限公司 | The frictional pressure-relieving achor bar of the hollow slip casting of prestressing force and method for protecting support |
| CN111691434A (en) * | 2020-06-03 | 2020-09-22 | 北京欣江峰市政工程有限责任公司 | Slope anchoring device for municipal works |
| CN113417678A (en) * | 2021-07-27 | 2021-09-21 | 辽宁工程技术大学 | Warped-shell type anti-impact anchor rod and supporting method thereof |
| CN114320416A (en) * | 2021-12-29 | 2022-04-12 | 西安建筑科技大学 | An expanding shell type yielding anchor and using method thereof |
-
2010
- 2010-05-18 CN CN2010201945941U patent/CN201753447U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824996A (en) * | 2010-05-18 | 2010-09-08 | 杭州图强工程材料有限公司 | Expansion shell type anchoring head and anchor rod with the same |
| CN101824996B (en) * | 2010-05-18 | 2013-01-30 | 杭州图强工程材料有限公司 | Expansion shell type anchoring head and anchor rod with the same |
| CN105114110A (en) * | 2015-09-21 | 2015-12-02 | 洛阳中岩工程材料有限公司 | Novel slide way type expanding-shell anchor head |
| CN106320610A (en) * | 2016-10-31 | 2017-01-11 | 洛阳中岩工程材料有限公司 | Top ring type expanding shell anchor head |
| CN106351681A (en) * | 2016-11-29 | 2017-01-25 | 洛阳中岩工程材料有限公司 | Slideway type expanding-shell anchor rod capable of automatically expanding lobes |
| CN109707425A (en) * | 2019-03-12 | 2019-05-03 | 中铁隆昌铁路器材有限公司 | The frictional pressure-relieving achor bar of the hollow slip casting of prestressing force and method for protecting support |
| CN109707425B (en) * | 2019-03-12 | 2024-09-13 | 中铁隆昌铁路器材有限公司 | Prestressed hollow grouting friction type yielding anchor rod and supporting method |
| CN111691434A (en) * | 2020-06-03 | 2020-09-22 | 北京欣江峰市政工程有限责任公司 | Slope anchoring device for municipal works |
| CN113417678A (en) * | 2021-07-27 | 2021-09-21 | 辽宁工程技术大学 | Warped-shell type anti-impact anchor rod and supporting method thereof |
| CN114320416A (en) * | 2021-12-29 | 2022-04-12 | 西安建筑科技大学 | An expanding shell type yielding anchor and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110302 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |