CN204591317U - Anchor pole stretch-draw connector - Google Patents
Anchor pole stretch-draw connector Download PDFInfo
- Publication number
- CN204591317U CN204591317U CN201520109481.XU CN201520109481U CN204591317U CN 204591317 U CN204591317 U CN 204591317U CN 201520109481 U CN201520109481 U CN 201520109481U CN 204591317 U CN204591317 U CN 204591317U
- Authority
- CN
- China
- Prior art keywords
- anchor pole
- stretch
- bar section
- draw
- connector
- 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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Abstract
A kind of anchor pole stretch-draw connector, be characterized in: anchor pole stretch-draw connector entirety is rod-like structure, its by with the exposing the first bar section that thread segment is connected and form the second bar section be connected with stretch-draw jack of anchor pole, transition bench terrace is provided with between first bar section and the second bar section, the cross-sectional area of the first bar section is greater than the cross-sectional area of the second bar section, be provided with at the center of the first bar section can form with the thread segment that exposes of anchor pole the internal thread hole be threaded along bar length direction, the second bar section is cylindric polished rod structure.This stretch-draw connector is adopted in anchor pole stretching construction process, stretch-draw jack is not contacted with the thread segment that exposes of anchor pole, but be connected with the thread segment that exposes of anchor pole by the internal thread hole of stretch-draw connector, like this in stretching process, stretch-draw jack can not damage the screw thread exposing thread segment of anchor pole, and the amount of exposing of anchor pole also can be made to reduce simultaneously as far as possible.In addition, it is simple that this stretch-draw connector also has structure, advantage easy to use.
Description
Technical field
The utility model relates to mining prestressing force supporting field, particularly a kind of anchor pole stretch-draw connector.
Background technology
Bolt System is a kind of mining prestressing force support system of normal employing, and this support system is connected and composed by anchor pole, pallet and nut usually.Wherein anchor pole is by Anchoring part, free segment with expose thread segment and form, and Anchoring part is adhesively fixed by Anchor Agent and rock mass, and free segment produces stress deformation, exposes the outside that thread segment is exposed to rock mass.Above-mentioned pallet is installed on exposing on thread segment of anchor pole, and is connected with the locking that anchor pole exposes thread segment the wall making pallet be pressed on rock mass by the nut being located at pallet lower end, forms supporting with this.
At present, above-mentioned Bolt System is in the process of construction, and usually with the direct tightening nut of torque spanner, after such anchor pole locking, the prestressing force of preservation is less, thus have impact on fastness and the stability of supporting.For improving the prestressing force that anchor pole is preserved, the measure that can take is: in the process of anchor pole locking, carry out stretch-draw with stretch-draw jack to anchor pole, to make the free segment of anchor pole produce larger stress deformation, thus forms larger prestressing force.But stretch-draw jack directly can not step up anchor pole and carry out stretch-draw, reason is the deficiency that there are following two aspects:
1) because the revealed section of anchor pole is thread structure, if jack directly steps up anchor pole can destroy screw thread on anchor pole revealed section.
2) if jack will step up anchor pole stretch-draw, then anchor pole must have enough amounts of exposing to make it extend into jack intermediate plate position, and this can take large quantity space in tunnel undoubtedly, makes troubles to operation in other tunnels.
In view of the foregoing, design a kind of structure that anchor pole and stretch-draw jack can be coupled together, play the effect of the thread structure do not destroyed on anchor pole revealed section on the one hand, the length of anchor pole revealed section can be reduced on the other hand as far as possible, so that operation in other tunnels, just seem very necessary.
Summary of the invention
The utility model for solve in known technology the technical problem that exists and provide a kind of structure simple, easy to use, avoid the screw thread that anchor pole exposes thread segment be destroyed and the anchor pole stretch-draw connector that the amount of exposing of anchor pole reduces as far as possible can be made.
The technical scheme that the utility model is taked for the technical problem existed in solution known technology is:
A kind of anchor pole stretch-draw connector, it is characterized in that: anchor pole stretch-draw connector entirety is rod-like structure, its by with the exposing the first bar section that thread segment is connected and form the second bar section be connected with stretch-draw jack of anchor pole, transition bench terrace is provided with between first bar section and the second bar section, the cross-sectional area of the first bar section is greater than the cross-sectional area of the second bar section, be provided with at the center of the first bar section can form with the thread segment that exposes of anchor pole the internal thread hole be threaded along bar length direction, the second bar section is cylindric polished rod structure.
The advantage that the utility model has and good effect are:
When carrying out stretching construction with stretch-draw jack to anchor pole, first bar section of stretch-draw connector to be formed with the revealed section of anchor pole by internal thread hole and is threaded, second bar section of stretch-draw connector is inserted in stretch-draw jack, clamped by stretch-draw jack, like this, the stretching force that stretch-draw jack applies is transferred on anchor pole by stretch-draw connector.After stretch-draw operation completes, unload stretch-draw connector.Due in stretching process, stretch-draw connector does not contact with the revealed section of anchor pole, but be connected with the revealed section of anchor pole by the internal thread hole of stretch-draw connector, like this in stretching process, stretch-draw jack can not damage the screw thread exposing thread segment of anchor pole, and the amount of exposing of anchor pole also can be made to reduce simultaneously as far as possible.In addition, it is simple that this stretch-draw connector also has structure, advantage easy to use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is using state reference diagram of the present utility model.
In figure: 1, anchor pole stretch-draw connector; 1-1, the first bar section; 1-1-1, internal thread hole; 1-2, the second bar section; 1-3, transition bench terrace; 1 ', anchor pole; 2 ', pallet; 3 ', nut; 4 ', stretch-draw jack; 5 ', torque spanner.
Detailed description of the invention
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 and 2, a kind of anchor pole stretch-draw connector, anchor pole stretch-draw connector 1 entirety is rod-like structure, its by with the exposing the first bar section 1-1 that thread segment is connected and form the second bar section 1-2 be connected with stretch-draw jack of anchor pole.Transition bench terrace 1-3 is provided with between first bar section and the second bar section, the cross-sectional area of the first bar section is greater than the cross-sectional area of the second bar section, be provided with along bar length direction at the center of the first bar section and can expose thread segment with anchor pole and form the internal thread hole 1-1-1 be threaded, the second bar section is cylindric polished rod structure.
The work progress adopting this stretch-draw connector to carry out anchor pole stretch-draw is:
When being inserted by the Anchoring part of anchor pole 1 ' and cementing in after in rock mass, first pallet 2 ' is installed on the upper of anchor pole; Then with torque spanner by nut 3 ' pretension on anchor pole; Then the first bar section of stretch-draw connector is connected with anchor pole; Then the second bar section of this stretch-draw connector is inserted in stretch-draw jack 4 ', and clamps; Then start stretch-draw jack and stretch-draw is carried out to anchor pole, after stretch-draw puts in place, by torque spanner 5 ' tightening nut; Finally stretch-draw jack and stretch-draw connector are disassembled successively.
Claims (1)
1. an anchor pole stretch-draw connector, it is characterized in that: anchor pole stretch-draw connector entirety is rod-like structure, its by with the exposing the first bar section that thread segment is connected and form the second bar section be connected with stretch-draw jack of anchor pole, transition bench terrace is provided with between first bar section and the second bar section, the cross-sectional area of the first bar section is greater than the cross-sectional area of the second bar section, be provided with at the center of the first bar section can form with the thread segment that exposes of anchor pole the internal thread hole be threaded along bar length direction, the second bar section is cylindric polished rod structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520109481.XU CN204591317U (en) | 2015-02-15 | 2015-02-15 | Anchor pole stretch-draw connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520109481.XU CN204591317U (en) | 2015-02-15 | 2015-02-15 | Anchor pole stretch-draw connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204591317U true CN204591317U (en) | 2015-08-26 |
Family
ID=53927482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520109481.XU Expired - Fee Related CN204591317U (en) | 2015-02-15 | 2015-02-15 | Anchor pole stretch-draw connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204591317U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370303A (en) * | 2015-11-26 | 2016-03-02 | 湖南科技大学 | Tensioning device for deep roadway high-prestress anchor bolt support and operation method thereof |
| CN109404025A (en) * | 2018-12-13 | 2019-03-01 | 新汶矿业集团有限责任公司华丰煤矿 | A kind of portable grouting cable anchor constructing device |
-
2015
- 2015-02-15 CN CN201520109481.XU patent/CN204591317U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370303A (en) * | 2015-11-26 | 2016-03-02 | 湖南科技大学 | Tensioning device for deep roadway high-prestress anchor bolt support and operation method thereof |
| CN109404025A (en) * | 2018-12-13 | 2019-03-01 | 新汶矿业集团有限责任公司华丰煤矿 | A kind of portable grouting cable anchor constructing device |
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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: 20150826 Termination date: 20160215 |