CN205743951U - A kind of multistage pressure-relieving achor bar - Google Patents
A kind of multistage pressure-relieving achor bar Download PDFInfo
- Publication number
- CN205743951U CN205743951U CN201620722656.9U CN201620722656U CN205743951U CN 205743951 U CN205743951 U CN 205743951U CN 201620722656 U CN201620722656 U CN 201620722656U CN 205743951 U CN205743951 U CN 205743951U
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- China
- Prior art keywords
- crush block
- pressure
- allow
- crush
- block
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Abstract
The multistage pressure-relieving achor bar of one that this utility model provides, including anchor bar body, the top of anchor bar body is provided with and allows pressure section, allows and being fixed with front tray in pressure section, and the rear portion of front tray is provided with rear pallet, and the rear portion of rear pallet abuts nut.Be provided with between front tray and rear pallet and allow pressure assembly, described in allow pressure assembly include allowing pressing spring, the first crush block and the second crush block.First crush block and the second crush block abut front tray and rear pallet respectively, allow pressing spring abut the first crush block and the second crush block respectively.The multistage pressure-relieving achor bar of above-mentioned one, when roadway surrounding rock generation moderate finite deformation, allow pressing spring first compressive deformation and then realize one-level and allow pressure, owing to the intensity of the first crush block and the second crush block is more than allowing the intensity of pressing spring, when deformation of the surrounding rock in tunnel increases further, and allow pressing spring cannot continue deformation allow pressure time, the first crush block and the second crush block stress deformation, and then realize again allowing pressure.Therefore realize multistage allowing to press and protect anchor pole from breaking.
Description
Technical field
This utility model relates to a kind of anchor pole, is specifically related to one and makes pressure effective, it is possible to release country rock strain energy is many
Level pressure-relieving achor bar.
Background technology
Along with the continuous increase of the mineral mining degree of depth such as colliery, crustal stress dramatically increases, and roadway surrounding rock stress increases, deep
Tunnel shows the feature that makes new advances, as fast in roadway deformation speed, deflection is relatively big, pucking is serious.Therefore, deep laneway surrounding rock has
Effect controls to become the vital task of deep mining, acts on to more effectively play, make of both the reinforcing of anchor pole and release
It carries and the removable part component of stress jointly with roadway surrounding rock, it is desirable to anchor pole has certain pressure energy power and enough intensity and just of allowing
Degree.It is less that common bolt maximum bears pressure, it is impossible to meets the mine that deformation of the surrounding rock in tunnel is bigger.
Utility model content
In order to solve common bolt maximum in prior art, to bear pressure less, the problem that anchor pole is easily pulled off, this reality
With a kind of multistage pressure-relieving achor bar of novel offer.
A kind of multistage pressure-relieving achor bar, including anchor bar body, the top of described anchor bar body is provided with and allows pressure section, allows in pressure section fixing
Having front tray, the rear portion of front tray is provided with rear pallet, and the rear portion of described rear pallet abuts nut.Front tray and rear pallet it
Between be provided with and allow pressure assembly, described in allow pressure assembly include allowing pressing spring, the first crush block and the second crush block.First crush block and
Second crush block abuts front tray and rear pallet respectively, allows pressing spring abut the first crush block and the second crush block respectively.
Preferably, the first crush block and the second crush block are provided with through hole, and the first crush block and the second crush block are enclosed within
Allow and press in section.First crush block and the second crush block are enclosed within and allow in pressure section, and installation process is simpler, after installation the first crush block and
Second crush block is without departing from allowing pressure section.
Further preferably, the first crush block and the second crush block all in round table-like, the first crush block and the two of the second crush block
End is bigger diameter end and miner diameter end respectively, and the bigger diameter end of the first crush block and the bigger diameter end of the second crush block abut front tray respectively
With rear pallet.The bigger diameter end of the first crush block and the bigger diameter end of the second crush block abut front tray and rear pallet respectively, it is possible to
Increase the stability of multistage pressure-relieving achor bar, prevent the first crush block and the second crush block from tilting.
Further preferably, the diameter of described miner diameter end is more than allowing pressing spring internal diameter, and the diameter of bigger diameter end is more than allowing in pressing spring
Footpath, allows pressing spring be enclosed within miner diameter end.Allow pressing spring be enclosed within miner diameter end, be possible to prevent to allow pressing spring lateral deviation, also can rise simultaneously
To fixing the first crush block and the effect of the second crush block.
This utility model compared with prior art, has the advantages that
The multistage pressure-relieving achor bar of above-mentioned one, when roadway surrounding rock generation moderate finite deformation, allows pressing spring first compressive deformation enter
And realize one-level and allow pressure, owing to the intensity of the first crush block and the second crush block is more than allowing the intensity of pressing spring, work as roadway surrounding rock
Deformation increases further, and allow pressing spring cannot continue deformation allow pressure time, the first crush block and the second crush block stress deformation, enter
And realize again allowing pressure.Therefore realize multistage allowing to press and protect anchor pole from breaking.
Accompanying drawing explanation
Fig. 1 is the structural representation allowing and pressing section.
1 anchor bar body；2 front tray；3 allow pressing spring；Pallet after 4；5 first crush blocks；6 second crush blocks；7 nuts.
Detailed description of the invention
Below in conjunction with Fig. 1, this utility model is described in detail.
A kind of multistage pressure-relieving achor bar, including anchor bar body 1, the top of described anchor bar body 1 is provided with and allows pressure section, allows pressure Duan Shanggu
Surely having front tray 2, the rear portion of front tray 2 to be provided with rear pallet 4, the rear portion of described rear pallet 4 abuts nut 7.Front tray 2 He
Be provided with between rear pallet 4 and allow pressure assembly, described in allow pressure assembly include allowing pressing spring the 3, first crush block 5 and the second crush block 6.
First crush block 5 and the second crush block 6 are provided with through hole, and the first crush block 5 and the second crush block 6 are enclosed within to allow and press in section.The
One crush block 5 and the second crush block 6 all in round table-like, the two ends of the first crush block 5 and the second crush block 6 be respectively bigger diameter end and
Miner diameter end, the bigger diameter end of the first crush block 5 and the bigger diameter end of the second crush block 6 abut front tray 2 and rear pallet 4 respectively.Institute
Stating the diameter of miner diameter end more than allowing pressing spring 3 internal diameter, the diameter of bigger diameter end, more than allowing pressing spring 3 internal diameter, allows pressing spring 3 be enclosed within little
On the end of footpath.
The multistage pressure-relieving achor bar of above-mentioned one, when roadway surrounding rock generation moderate finite deformation, allows pressing spring 3 first compressive deformation enter
And realize one-level and allow pressure, owing to the intensity of the first crush block 5 and the second crush block 6 is more than allowing the intensity of pressing spring 3, when tunnel is enclosed
Rock deformation increases further, and allow pressing spring 3 cannot continue deformation allow pressure time, the first crush block 5 and the second crush block 6 stress become
Shape, and then realize again allowing pressure.Therefore realize multistage allowing to press and protect anchor pole from breaking.
Certainly, described above is not to restriction of the present utility model, and this utility model is also not limited to the example above,
Change that those skilled in the art are made in essential scope of the present utility model, retrofit, add or replace, also should
Belong to protection domain of the present utility model.
Claims (4)
1. a multistage pressure-relieving achor bar, it is characterised in that include that anchor bar body, the top of described anchor bar body are provided with and allow pressure section, allow
Being fixed with front tray in pressure section, the rear portion of front tray is provided with rear pallet, and the rear portion of described rear pallet abuts nut；
Be provided with between front tray and rear pallet and allow pressure assembly, described in allow pressure assembly include allowing pressing spring, the first crush block and the
Two crush blocks；
First crush block and the second crush block abut front tray and rear pallet respectively, allow pressing spring abut first respectively and allow pressure
Block and the second crush block.
A kind of multistage pressure-relieving achor bar the most as claimed in claim 1, it is characterised in that the first crush block and the second crush block are all provided with
Being equipped with through hole, the first crush block and the second crush block are enclosed within to allow and press in section.
A kind of multistage pressure-relieving achor bar the most as claimed in claim 2, it is characterised in that the first crush block and the second crush block all in
Round table-like, the two ends of the first crush block and the second crush block are bigger diameter end and miner diameter end respectively, the bigger diameter end of the first crush block and
The bigger diameter end of the second crush block abuts front tray and rear pallet respectively.
A kind of multistage pressure-relieving achor bar the most as claimed in claim 3, it is characterised in that the diameter of described miner diameter end is more than allowing pressure bullet
Spring internal diameter, the diameter of bigger diameter end, more than allowing pressing spring internal diameter, allows pressing spring be enclosed within miner diameter end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620722656.9U CN205743951U (en) | 2016-07-11 | 2016-07-11 | A kind of multistage pressure-relieving achor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620722656.9U CN205743951U (en) | 2016-07-11 | 2016-07-11 | A kind of multistage pressure-relieving achor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205743951U true CN205743951U (en) | 2016-11-30 |
Family
ID=57378885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620722656.9U Expired - Fee Related CN205743951U (en) | 2016-07-11 | 2016-07-11 | A kind of multistage pressure-relieving achor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205743951U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386211A (en) * | 2018-03-06 | 2018-08-10 | 兰州理工大学 | Anchor pole-steelframe, which combines to allow, presses preliminary bracing structure and construction method |
| CN110259495A (en) * | 2019-07-03 | 2019-09-20 | 中国矿业大学 | A kind of compound support method based on erosion control decompression anchor cable |
| CN110925000A (en) * | 2019-11-25 | 2020-03-27 | 绍兴文理学院 | Multi-stage yielding large-deformation tray with prestress self-applying function and using method |
-
2016
- 2016-07-11 CN CN201620722656.9U patent/CN205743951U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386211A (en) * | 2018-03-06 | 2018-08-10 | 兰州理工大学 | Anchor pole-steelframe, which combines to allow, presses preliminary bracing structure and construction method |
| CN108386211B (en) * | 2018-03-06 | 2019-10-22 | 兰州理工大学 | Anchor pole-steelframe, which combines to allow, presses preliminary bracing structure and construction method |
| CN110259495A (en) * | 2019-07-03 | 2019-09-20 | 中国矿业大学 | A kind of compound support method based on erosion control decompression anchor cable |
| CN110925000A (en) * | 2019-11-25 | 2020-03-27 | 绍兴文理学院 | Multi-stage yielding large-deformation tray with prestress self-applying function and using method |
| CN110925000B (en) * | 2019-11-25 | 2021-03-16 | 绍兴文理学院 | Multi-stage yielding large-deformation tray with prestress self-applying function and using method |
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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 |
Granted publication date: 20161130 Termination date: 20170711 |