CN203905982U - Expansion shell type anchor bolt head - Google Patents
Expansion shell type anchor bolt head Download PDFInfo
- Publication number
- CN203905982U CN203905982U CN201420310676.6U CN201420310676U CN203905982U CN 203905982 U CN203905982 U CN 203905982U CN 201420310676 U CN201420310676 U CN 201420310676U CN 203905982 U CN203905982 U CN 203905982U
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- China
- Prior art keywords
- rises
- shell
- inner wedge
- expansion shell
- shell inner
- 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 - Lifetime
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- 239000011435 rock Substances 0.000 claims description 16
- 230000000630 rising effect Effects 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to an anchor bolt head, in particular to an expansion shell type anchor bolt head. The expansion shell type anchor bolt head comprises a hollow expansion shell inner wedge and expansion shell plates, the tail end of the expansion shell inner wedge is in a hollow cylinder shape, the two sides of the expansion shell inner wedge are provided with grooves allowing the expansion shell plates to slide, and the bottom surfaces of the grooves are inclined towards the outer side of the expansion shell inner wedge. The positions, close to the root portions of the expansion shell plates, of the two expansion shell plates are provided with connecting counter bores correspondingly, and the two expansion shell plates are installed on the two sides of the expansion shell inner wedge through the grooves and a connecting structure penetrating through the expansion shell inner wedge and the two connecting counter bores. The expansion shell type anchor bolt head is simple and stable in structure, solves the problem that expansion shell plates are asynchronous, and is better in adaptability to diameter changes of a grouting hole.
Description
Technical field
The utility model relates to a kind of anchor pole head, particularly a kind of expansion type rock bolt head.
Background technology
Anchor pole is the most basic ingredient of roadway support in the middle of contemporary colliery, it by the surrounding rock consolidation in tunnel together, a kind of main form that stratum or rock stratum are reinforced is to adopt anchor pole to insert in rock stratum to make support action.Now anchor pole is not only for mine, also for engineering, and to side slope, tunnel, dam body carries out main body reinforcing.Along with the development of Geotechnical Engineering, the structure of anchor pole has also been made to various improvement, anchor pole head forms the vitals of supporting power in rock stratum as whole anchor pole, but still have some defects.
Grant number is that the Chinese utility model patent of CN 202482859 U discloses " a kind of expansion type rock bolt head ", comprise the interior wedge of the shell that rises of hollow and the shell sheet that rises, the wedge both sides in shell of rising are provided with sliding rail, the shell sheet that rises is placed on the sliding rail of wedge both sides in the shell that rises, and inner side and the sliding rail of the shell sheet that rises match, the shell sheet that rises is fixed on the track of wedge both sides in the shell that rises by flexible fixing device, in the described shell that rises, wedge end is hollow circular column, and the sliding rail that its both sides arrange is two grooves that lay respectively at wedge both sides in the shell that rises; By the both sides of wedge in the shell that rises being arranged to the sliding rail that is plane, rise simultaneously the structure matching with it is also set on shell sheet, make to rise shell sheet under the effect of anchor pole above sliding rail upward sliding spreading, form rapidly supporting power, convenient for supporting temporarily or permanently.Its weak point is: described flexible fixing device is tie string or elastic tape, tie string or elastic tape are looped around to the activity that fixes the shell sheet that rises on the external surface of the shell sheet that rises, in work progress, due to because the two shell sheet situations of being obstructed that rise differ and cause the two shell sheets that rise asynchronous in advancing, cannot fix; Also may cause tie string or elastic tape fracture, the shell sheet that rises drops, and will increase engineering time and difficulty; The stroke of shell sheet of rising is short, and anchor pole head compliance is little.
Utility model content
The purpose of this utility model is: for the problem of prior art existence, provide the expansion type rock bolt head of a kind of Stability Analysis of Structures, wide adaptability.
To achieve these goals, the technical solution adopted in the utility model is:
An expansion type rock bolt head, comprises rise shell Inner wedge and the shell sheet that rises of hollow, described in the shell Inner wedge end that rises be hollow circular bar shape, the shell Inner wedge both sides of rising are provided with the groove sliding for the shell sheet that rises, groove floor tilts to the outside of the shell Inner wedge that rises; Described two rise is provided with connection counterbore near the shell sheet root correspondence that rises on shell sheet, and two rise by shell sheet by groove and the both sides that are arranged on the shell Inner wedge that rises through the shell Inner wedge that rises is connected counterbore syndeton with two.
As preferred version of the present utility model, described in the rise middle interconnecting piece of shell Inner wedge groove divide and be provided with stopper slot, described stopper slot is arranged on away from the shell Inner wedge end side that rises; The position of stopper slot is moved toward the shell sheet cephalad direction that rises, and such design make to rise stroke of shell sheet increases, and the expandable radian of shell sheet that rises is larger, adaptation treat the wider of anchor hole.
As preferred version of the present utility model, described connection counterbore is arranged on the shell sheet that rises along rising on the axial center line of shell Inner wedge, described in the rise macropore of the connection counterbore on shell sheet be arranged near rising by shell sheet external surface side.
As preferred version of the present utility model, described syndeton comprises the bolt that rises by shell sheet through two, and the both ends of bolt are provided with nut, between the nut on described bolt and the described large aperture interface that is connected counterbore, is provided with flexible member; Counterbore is designed for spacing flexible member, simultaneously flexible member can produce thrust to the shell sheet that rises, and allows the shell sheet that rises in traveling process, keep stablizing, the use of bolt nut structure, allow the shell sheet advanced in unison all the time that rises, the shell sheet one end of having avoided rising is not opened and is caused the situation that anchor pole can not be fixing to occur.
As preferred version of the present utility model, the flexible member arranging on described bolt is two sections of identical springs of performance, and the diameter of described spring matches with the described diameter that is connected counterbore; The spring that performance is identical, makes two thrusts that shell sheet is subject to that rise consistent.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
1, bolt and nut and elastic element structure solve the two nonsynchronous problems in shell sheet traveling process that rise, and the situation that there will not be the shell sheet that rises to drop, operates steadily at Stability Analysis of Structures;
2, the position of stopper slot is moved toward the shell sheet cephalad direction that rises, the stroke of the shell sheet that makes to rise increases, and the expandable radian of shell sheet that rises is larger, the better adaptability changing for the diameter of injected hole.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model expansion type rock bolt head.
Fig. 2 is fixedly the rise structural representation of shell sheet of prior art.
Fig. 3 is the structural representation of shell sheet of rising.
Fig. 4 is the shell Inner wedge structural representation that rises.
Mark in figure: the 1-shell Inner wedge that rises, the 2-shell sheet that rises, the 11-shell Inner wedge end that rises, 12-groove, 13-stopper slot, 21-nut, 22-bolt, 23-connects counterbore, 24-flexible member, the 25-shell sheet root that rises, the 26-shell sheet head that rises.
The specific embodiment
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 clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
embodiment 1
Expansion type rock bolt head as shown in Figure 1, rise shell Inner wedge 1 and the shell sheet 2 that rises that comprise hollow, the described shell Inner wedge end 11 that rises is hollow circular bar shape, and shell Inner wedge 1 both sides of rising are provided with the groove 12 sliding for the shell sheet 2 that rises, and groove 12 bottom surfaces tilt to the outside of the shell Inner wedge 1 that rises; Described two rise on shell sheet 2 is provided with and connects counterbore 23, two and rise by shell sheet 2 by groove 12 and the both sides that are arranged on the shell Inner wedge 1 that rises through the shell Inner wedge 1 that rises is connected counterbore 23 syndeton with two near shell sheet root 25 correspondences that rise.
As shown in Figure 4, described in the rise middle interconnecting piece of shell Inner wedge groove 12 divide and be provided with stopper slot 13, described stopper slot is established 13 and is put away from shell Inner wedge end 11 sides that rise; The position of stopper slot 13 is moved toward shell sheet head 26 directions that rise, and such design make to rise stroke of shell sheet 2 increases, and the expandable radian of shell sheet 2 that rises is larger, adaptation treat the wider of anchor hole.
As shown in Figure 3, described connection counterbore 23 is arranged on the shell sheet 2 of rising along on the axial center line of the shell Inner wedge 1 that rises, described in the rise macropore of the connection counterbore 23 on shell sheet 2 be arranged near rising by shell sheet 2 external surface sides.
As shown in Figure 1, described syndeton comprises the bolt 22 that rises by shell sheet 2 through two, and the both ends of bolt 22 are provided with nut 21, between the nut 21 on described bolt 22 and the described large aperture interface that is connected counterbore 23, is provided with flexible member 24; Counterbore is designed for spacing flexible member, simultaneously flexible member can produce thrust to the shell sheet that rises, and allows the shell sheet that rises in traveling process, keep stablizing, the use of bolt nut structure, allow the shell sheet advanced in unison all the time that rises, the shell sheet one end of having avoided rising is not opened and is caused the situation that anchor pole can not be fixing to occur.
As shown in Figure 1, the flexible member arranging on described bolt 22 is two sections of identical springs of performance, and the diameter of described spring matches with the described diameter that is connected counterbore; The spring that performance is identical, makes two thrusts that shell sheet is subject to that rise consistent.
As shown in Figure 2, fixedly the rise method of shell sheet of prior art is tie string or the elastic tape of use, the external surface that relies on tie string or elastic tape to be looped around to rise shell sheet and the shell Inner wedge that rises rises by being movably fixed to of shell sheet of rising on the sliding rail of shell Inner wedge both sides, when the shell sheet that rises is movable, there is the possibility of fracture in tie string or elastic tape, the shell sheet that rises will drop, and increases engineering time and difficulty; And in the present embodiment, use bolt nut structure instead and fix the two shell sheets that rise, simple and stable structure, and the bottom of the shell Inner wedge groove that rises is provided with one section of space of running through, the stroke of the shell sheet that rises making is longer, and the expandable radian of shell sheet that rises is larger, and then makes the compliance of grouted anchor bar wider.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. an expansion type rock bolt head, comprises rise shell Inner wedge and the shell sheet that rises of hollow, described in the shell Inner wedge end that rises be hollow circular bar shape, it is characterized in that, the shell Inner wedge both sides of rising are provided with the groove sliding for the shell sheet that rises, groove floor tilts to the outside of the shell Inner wedge that rises; Described two rise is provided with connection counterbore near the shell sheet root correspondence that rises on shell sheet, and two rise by shell sheet by groove and the both sides that are arranged on the shell Inner wedge that rises through the shell Inner wedge that rises is connected counterbore syndeton with two.
2. expansion type rock bolt head according to claim 1, is characterized in that, described in the rise middle interconnecting piece of shell Inner wedge groove divide and be provided with stopper slot, described stopper slot is arranged on away from the shell Inner wedge end side that rises.
3. expansion type rock bolt head according to claim 1, described connection counterbore is arranged on the shell sheet that rises along on the axial center line of the shell Inner wedge that rises, described in the rise macropore of the connection counterbore on shell sheet be arranged near rising by shell sheet external surface side.
4. according to the expansion type rock bolt head described in claim 1 or 3, it is characterized in that, described syndeton comprises the bolt that rises by shell sheet through two, and the both ends of bolt are provided with nut, between the nut on described bolt and the described large aperture interface that is connected counterbore, is provided with flexible member.
5. according to the expansion type rock bolt head described in claim 3 or 4, it is characterized in that, the flexible member arranging on described bolt is two sections of identical springs of performance, and the diameter of described spring matches with the described diameter that is connected counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420310676.6U CN203905982U (en) | 2014-06-12 | 2014-06-12 | Expansion shell type anchor bolt head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420310676.6U CN203905982U (en) | 2014-06-12 | 2014-06-12 | Expansion shell type anchor bolt head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203905982U true CN203905982U (en) | 2014-10-29 |
Family
ID=51780270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420310676.6U Expired - Lifetime CN203905982U (en) | 2014-06-12 | 2014-06-12 | Expansion shell type anchor bolt head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203905982U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121697A (en) * | 2016-08-19 | 2016-11-16 | 中国葛洲坝集团第三工程有限公司 | A kind of fast lifting rises the device and method of the initial anchor force of shell anchor head |
| CN110761821A (en) * | 2019-11-29 | 2020-02-07 | 浙江聚能岩土锚固研究有限公司 | Expansion shell type anchoring head |
| CN110805463A (en) * | 2019-11-29 | 2020-02-18 | 浙江聚能岩土锚固研究有限公司 | Anchor rod expansion shell head |
| 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 |
-
2014
- 2014-06-12 CN CN201420310676.6U patent/CN203905982U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121697A (en) * | 2016-08-19 | 2016-11-16 | 中国葛洲坝集团第三工程有限公司 | A kind of fast lifting rises the device and method of the initial anchor force of shell anchor head |
| CN110761821A (en) * | 2019-11-29 | 2020-02-07 | 浙江聚能岩土锚固研究有限公司 | Expansion shell type anchoring head |
| CN110805463A (en) * | 2019-11-29 | 2020-02-18 | 浙江聚能岩土锚固研究有限公司 | Anchor rod expansion shell head |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |