CN2521428Y - Rock strata grouting bolt fastening - Google Patents
Rock strata grouting bolt fastening Download PDFInfo
- Publication number
- CN2521428Y CN2521428Y CN 01276492 CN01276492U CN2521428Y CN 2521428 Y CN2521428 Y CN 2521428Y CN 01276492 CN01276492 CN 01276492 CN 01276492 U CN01276492 U CN 01276492U CN 2521428 Y CN2521428 Y CN 2521428Y
- Authority
- CN
- China
- Prior art keywords
- anchor bar
- rock stratum
- bolthole
- fastening piece
- utility
- 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
A fastener for rock stratum mud injecting anchor bar is a cylindrical body. The body is axially equipped with an anchor bar hole in which the anchor bar can be fixed, a screw thread is arranged in the anchor bar hole, and the body surface is equipped with a barb length which can increase resistance force and prevent slide. A front end of the anchor bar hole extends as an oblique cone hole and axially opens at least two grooves on the body. With the employment of the utility model, the anchor bar is inserted into the utility model and rotates along the screw thread, which enables a front end of the body to open, the anchor bar and rock stratum are closely fixed together, thereby veritably 'anchoring'or 'pulling'the rock stratum and achieving the high effectiveness and dependable service efficiency.
Description
Technical field
The utility model relates to a kind of fastening piece, particularly a kind of in the rock stratum construction time be used for the fastening piece of grouted anchor bar.
Background technique
In the construction work of rock stratum, generally be with fastening other firmwares of grouted anchor bar, the grouted anchor bar front end stretches into the rock stratum and is fixed by behind the high-pressure slip-casting, and the grouted anchor bar front end combines with the rock stratum by a fastening piece (being commonly called as anchor head).The effect of this fastening piece is an anchor pole " anchor live " or " pulling " on the rock stratum, the first is fixed on the rock stratum and is unlikely to come off and causes accident; The 2nd, when high-pressure slip-casting, help controlling exhaust, boost by a stable slip casting condition, be convenient to operation.But its profile of this fastening piece of the prior art has only a cylindrical body, thereby can not change with the varying aperture of rock stratum, is difficult to the effect that reaches good during utilization.
Summary of the invention
Technical problem to be solved in the utility model is to overcome existing defective in the above-mentioned prior art, and a kind of rock stratum grouted anchor bar fastening piece is provided, make its in use can be veritably " anchor is lived " or " pulling " rock stratum, reach the high-efficiency reliable using effect.
The utility model has adopted following technical proposal to solve its technical problem: a kind of rock stratum grouted anchor bar fastening piece, be cylindrical body, but axially be equipped with the bolthole of fixing anchor bar on this body, this bolthole is built-in with screw thread, body surface is equipped with the hangnail that can increase the anti-sliding stop of resistance, it is characterized in that: the bolthole front end extends to the tilted conical hole, and offers at least two grooves vertically on body.
The utility model during use inserts anchor pole wherein and along screw thread rotation, the body front end opened, and so just can closely be fixed together with the rock stratum, thereby " anchor is lived " or " pulling " rock stratum veritably can reach efficiently, reliable using effect.
Description of drawings
Fig. 1 is the utility model outward appearance plan view;
Fig. 2 is the utility model side view;
Fig. 3 be among Fig. 2 A-A to sectional view;
Fig. 4 is the enlarged view of B portion among Fig. 3.
Embodiment
Come the utility model is further described below in conjunction with accompanying drawing and embodiment.
Please refer to shown in the accompanying drawing, the utility model is a cylindrical body 1, but axially is equipped with the bolthole 2 of fixing anchor bar on this body 1, and this bolthole 2 is built-in with screw thread 3, and body 1 surface is equipped with the hangnail 4 that can increase the anti-sliding stop of resistance.
Offer at least two grooves 5 on the body 1 vertically, the angle between each groove equates.Present embodiment has been offered three grooves 5, and its angle each other is 120 degree.
The utility model during use inserts anchor pole wherein and along screw thread rotation, the body front end opened, and so just can closely be fixed together with the rock stratum, thereby " anchor is lived " or " pulling " rock stratum veritably can reach efficiently, reliable using effect.
Claims (4)
1, a kind of rock stratum grouted anchor bar fastening piece, be cylindrical body, but axially be equipped with the bolthole of fixing anchor bar on this body, this bolthole is built-in with screw thread, body surface is equipped with the hangnail that can increase the anti-sliding stop of resistance, it is characterized in that: the bolthole front end extends to the tilted conical hole, and offers at least two grooves vertically on body.
2, rock stratum according to claim 1 grouted anchor bar fastening piece is characterized in that: the tapering in bolthole front end tilted conical hole is 15 degree.
3, rock stratum according to claim 1 grouted anchor bar fastening piece is characterized in that: the angle between each groove of offering vertically on the body equates.
4, rock stratum according to claim 1 grouted anchor bar fastening piece is characterized in that: offer three grooves on the body vertically, its angle each other is 120 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01276492 CN2521428Y (en) | 2001-12-31 | 2001-12-31 | Rock strata grouting bolt fastening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01276492 CN2521428Y (en) | 2001-12-31 | 2001-12-31 | Rock strata grouting bolt fastening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2521428Y true CN2521428Y (en) | 2002-11-20 |
Family
ID=33680584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01276492 Expired - Fee Related CN2521428Y (en) | 2001-12-31 | 2001-12-31 | Rock strata grouting bolt fastening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2521428Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155015A (en) * | 2011-03-01 | 2011-08-17 | 中国有色金属工业昆明勘察设计研究院 | Barbed implanted steel pipe anchor rod |
| CN103031842A (en) * | 2011-10-08 | 2013-04-10 | 长江大学 | Soil-squeezing type soil anchor |
| CN101568734B (en) * | 2006-12-20 | 2014-07-30 | 阿弗德尔英国有限公司 | Blind stud insert |
| CN109139642A (en) * | 2018-11-09 | 2019-01-04 | 浙江天开实业有限公司 | A kind of easily take off takes expansion tube |
| CN110748540A (en) * | 2019-11-01 | 2020-02-04 | 徐州华显凯星信息科技有限公司 | Internal expanding pin for pressing type expansion fixing buckle |
-
2001
- 2001-12-31 CN CN 01276492 patent/CN2521428Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101568734B (en) * | 2006-12-20 | 2014-07-30 | 阿弗德尔英国有限公司 | Blind stud insert |
| CN102155015A (en) * | 2011-03-01 | 2011-08-17 | 中国有色金属工业昆明勘察设计研究院 | Barbed implanted steel pipe anchor rod |
| CN103031842A (en) * | 2011-10-08 | 2013-04-10 | 长江大学 | Soil-squeezing type soil anchor |
| CN109139642A (en) * | 2018-11-09 | 2019-01-04 | 浙江天开实业有限公司 | A kind of easily take off takes expansion tube |
| CN109139642B (en) * | 2018-11-09 | 2024-04-02 | 浙江天开实业有限公司 | Expansion pipe easy to take off |
| CN110748540A (en) * | 2019-11-01 | 2020-02-04 | 徐州华显凯星信息科技有限公司 | Internal expanding pin for pressing type expansion fixing buckle |
| CN110748540B (en) * | 2019-11-01 | 2021-08-13 | 徐州华显凯星信息科技有限公司 | Internal expanding pin for pressing type expansion fixing buckle |
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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 |