CN206903682U - One kind increases resistance pressure-relieving achor bar - Google Patents
One kind increases resistance pressure-relieving achor bar Download PDFInfo
- Publication number
- CN206903682U CN206903682U CN201720839921.6U CN201720839921U CN206903682U CN 206903682 U CN206903682 U CN 206903682U CN 201720839921 U CN201720839921 U CN 201720839921U CN 206903682 U CN206903682 U CN 206903682U
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- CN
- China
- Prior art keywords
- latch
- bar
- gland cylinder
- cylinder
- relieving achor
- 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
The utility model hinders pressure-relieving achor bar more particularly to a kind of increase, including anchor rod, free bar and allow gland cylinder, the anchor rod is fixedly connected on described one end for allowing gland cylinder, it is described to allow the other end of gland cylinder to be sleeved on the outside of described free bar one end, one section of gland cylinder is allowed to be provided with two long slot bores for extending radially through the free bar described in the free bar connection, described two long slot bores are arranged in a crossed manner, the both ends of the long slot bore are provided with buffer substrate tablet, it is described to allow gland cylinder to be provided with two groups of symmetrical pin holes in the corresponding elongated slot hole site, latch is installed in the pin hole, the latch runs through the long slot bore, the free bar is additionally provided with guide groove, it is described to allow gland cylinder inner cylinder to be provided with guide rail corresponding with the guide groove；Solve the problems, such as that the existing resistance pressure-relieving achor bar that increases needs not cut because by prime fracture latch being stopped using high Cost Problems caused by high hardness material and rear class latch.
Description
Technical field
A kind of tunnel or tunnel support anchor pole are the utility model is related to, it is more particularly to a kind of to increase resistance pressure-relieving achor bar.
Background technology
The existing resistance pressure-relieving achor bar that increases is provided with by setting one group of symmetrical elongated slot allowing on gland cylinder in free bar
Some latch fixing holes, and be fixed on provided with some grades of latches through elongated slot on latch fixing hole, when slopes fragmented rock body applies
Stress be more than latch shear strength when, latch be cut by can be allowed the elongated slot of gland cylinder, allow gland cylinder elongated slot produce slide, slope
Body fragmented rock body realizes stress release to reduce anchor rod drawing power with sliding, and second level latch support is inserted at elongated slot one end
The hole movement of pin meeting barrier rib, there is provided resistance, after second level latch is cut, the movement of third level latch barrier rib hole, there is provided resistance,
By that analogy.But be found through experiments that, the stress that slopes fragmented rock body applies is too big, and latch uses common iron, and latch is straight
Footpath is too big, can damage the body of rod itself work axle power, pin diameter is too small, then does not provide enough shearings resistance, it is necessary to using high
The material of hardness could meet the stress that slopes fragmented rock body applies, but the material cost of high rigidity is too high, and test
In it has also been found that, after latch is cut, have one section of clip that can be stuck in elongated slot, cause next stage latch not cut, influence
The use function of pressure-relieving achor bar.
Utility model content
In view of the foregoing, it is necessary to provide it is a kind of increase resistance pressure-relieving achor bar, long slot bore is opened up on free bar, is allowing gland
Pin hole is opened up on cylinder, avoids after latch is cut and is still stuck in clip, the problem of causing follow-up latch not cut；And
For the pressure-relieving achor bar by setting two groups of symmetrical long slot bores, the latch quantity of increase stress simultaneously improves the ability of meeting with stresses,
Solve the high Cost Problems using high hardness material.
To reach above-mentioned purpose, technical scheme is used by the utility model：One kind increases resistance pressure-relieving achor bar, including anchoring
Bar, free bar and allow gland cylinder, the anchor rod is fixedly connected on described one end for allowing gland cylinder, described to allow the another of gland cylinder
End is sleeved on the outside of described free bar one end, allows one section of gland cylinder to be provided with two footpaths described in the corresponding connection of the free bar
To the long slot bore through the free bar, described two long slot bores are arranged in a crossed manner, and the both ends of the long slot bore are respectively equipped with buffering
Piece, the side wall for allowing gland cylinder are provided with the two group symmetrical pin holes corresponding with the elongated slot hole site, the pin hole
In latch is installed, the latch runs through the long slot bore, and the lateral wall of the free bar is additionally provided with guide groove, the guide groove
It is described to allow pressure sleeve lining to be provided with guide rail corresponding with the guide groove along the axially arranged of the free bar.
As an improvement mode, the one of which in the pin hole is circular hole, and another group is elliptical aperture.
As an improvement mode, the latch is divided into straight cylinder latch and with arc groove latch, the band arc groove
An arc groove is provided with the middle part of latch, the circular arc groove radius is equal to the diameter of the straight cylinder latch, the straight cylinder latch
It is placed in the arc groove, the straight cylinder latch is used cooperatively with the band arc groove latch, and the straight cylinder latch passes through
The circular hole, the band arc groove latch pass through the elliptical aperture, can cause two latches of mutual cooperation while connect
Touch it is described allow gland cylinder, and stress is consistent, while is cut.
As an improvement mode, the latch allows gland cylinder contact-segment be hollow cavity with described, and it is described each
The hollow cavity of latch is different, and two hollow cavities of same latch are identical, according to different requirements, set the latch
Hollow cavity size, different shearing resistance values is obtained, shearing resistance value increases step by step, and realization is cut step by step.
As an improvement mode, the latch allows gland cylinder contact-segment to be provided with breach with described, and each described slotting
The notch depth of pin is different, according to different Resistance Value requirements, sets the breach depth of the latch, obtains different shearing resistances
Force value, shearing resistance value increase step by step, and realization is cut step by step.
As an improvement mode, the latch is made up of brittle metal material, it is ensured that the latch is when being cut
It can directly be broken, avoid separated but still in each other's thoughts.
As an improvement mode, allow gland cylinder described in anchor rod threaded connection.
As an improvement mode, increase resistance pressure-relieving achor bar also include also include pallet and stop nut, the pallet set
In on the free bar, the stop nut rotation set is spacing to pallet progress in the end of the free bar, and pallet can incite somebody to action
Pressure-relieving achor bar is pressed on palisades.
Due to being had the advantages that using above-mentioned technical proposal, the utility model：
It is of the present utility model it is a kind of increase resistance pressure-relieving achor bar, long slot bore is opened up on free bar, allow on gland cylinder open up it is slotting
Pin-and-hole, avoids still to be stuck in after latch is cut and allows the clip of gland cylinder, solve rear class latch because being influenceed by prime latch and
The problem of can not being cut；And the pressure-relieving achor bar increases the latch number of stress simultaneously by setting two groups of symmetrical long slot bores
Measure to improve the ability of meeting with stresses, need to only use common used material just to reach actual working stress requirement, solution needs use high
High Cost Problems caused by hardened material.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model increases resistance pressure-relieving achor bar；
Fig. 2 is A-A enlarged section schematic diagram；
Fig. 3 is to allow the structural representation of gland cylinder；
Fig. 4 is the structural representation of free bar；
Fig. 5 is B-B schematic cross-sectional view；
Fig. 6 is the structural representation of straight cylinder latch；
Fig. 7 is the structural representation with arc groove latch；
Wherein, 1- free bars, 2- allow gland cylinder, 3- anchor rods, 4- straight cylinder latches, 5- band arc groove latches, 6- bufferings
Piece, 7- pallets, 8- stop nuts, 11- long slot bores, 12- guide grooves, 21- pin holes, 41- hollow cavities, 51- arc grooves.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Shown in reference picture 1, Fig. 3, Fig. 4 and Fig. 5, one kind increases resistance pressure-relieving achor bar, including 3, free bars 1 of an anchor rod
Gland cylinder 2, in addition to a pallet 7 and stop nut 8, pallet 7 is allowed to be placed on free bar 1 with one, the remote pressure that allows of free bar 1
One end of sleeve 2 is provided with threaded post, and the rotation set of stop nut 8 is carried out spacing in the threaded post of free bar 1 to pallet 7.Anchor rod
3 be solid hopkinson bar, and with allowing one end that gland cylinder 2 is connected to be provided with screw thread, threaded connection allows gland cylinder 2；Gland cylinder 2 is allowed to be a tubulose,
One end inner cylinder being connected with anchor rod 3 is provided with screw thread, and screw thread matches with the screw thread of anchor rod 3, allows the other end of gland cylinder 2 to be set with
In the outside of the one end of free bar 1.Free bar 1 is that filled circles are shaft-like, and a part for free bar 1, which is placed on, to be allowed in gland cylinder 2, free bar
1 connection allows one section of gland cylinder 2 to be provided with two long slot bores 11 for extending radially through free bar 1, and two long slot bores 11 are arranged in a crossed manner, and
It is mutually perpendicular to, the both ends of long slot bore 11 are provided with buffer substrate tablet 6, and buffer substrate tablet 6 is semilune, and the material of buffer substrate tablet 6 is elastoplast.Allow
Gland cylinder 2 is provided with two groups of symmetrical pin holes 21 in the corresponding position of long slot bore 11, and the one of which in pin hole 21 is circular hole, separately
One group is elliptical aperture, and for two groups of pin holes 21 along allowing the axis direction of gland cylinder 2 to arrange, every group is two row, and is inserted with two row of group
Pin-and-hole 21 is symmetrical, and the size of pin hole 21 in same group is consistent, two groups totally four row pin holes 21 arrange respectively arranged for A, B
Row, C row and D row, A row and B row are symmetrical, and C row and D row are symmetrical.Latch is installed in pin hole 21, latch runs through long slot bore 11,
And what is installed in symmetrical two pin holes 21 is same latch, latch is made up of brittle metal material, it is ensured that latch is in quilt
It can directly be broken, avoid separated but still in each other's thoughts during cutting.Free bar 1 is additionally provided with guide groove 12, and guide groove 12 is the cell body of a cuboid,
The inner cylinder of gland cylinder 2 is allowed to be provided with guide rail corresponding to guide groove 12, guide rail is the boss of a cuboid.
Shown in reference picture 1, Fig. 2, Fig. 6 and Fig. 7, latch is divided into straight cylinder latch 4 and with arc groove latch 5, and straight cylinder is inserted
Pin 4 is identical with the diameter with arc groove latch 5, and the middle part of band arc groove latch 5 is provided with an arc groove 51, the radius of arc groove 51 etc.
In the diameter of straight cylinder latch 4, straight cylinder latch 4 is placed in arc groove 51, and straight cylinder latch 4 with arc groove latch 5 with coordinating
Use, straight cylinder latch 4 passes through circular hole, and band arc groove latch 5 passes through elliptical aperture, can make it that two latches of mutual cooperation are same
When contact allow gland cylinder 2, and stress is consistent, while is cut.Latch and the contact-segment of gland cylinder 2 is allowed to be hollow cavity 41, and
The hollow cavity 41 of each latch is different, and two hollow cavities 41 of same latch are identical, according to different requirements, sets and inserts
The size of hollow cavity 41 of pin, obtains different shearing resistance values, and shearing resistance value increases step by step, and realization is cut step by step.
As a preferred embodiment, latch and allow the contact-segment of gland cylinder 2 to be provided with breach, and the notch depth difference of each latch,
According to different Resistance Value requirements, the breach depth of latch is set, obtains different shearing resistance values, shearing resistance value increases step by step
Add, realization is cut step by step.
The installation method of pressure-relieving achor bar is as follows：
1st, drilled on palisades, and chip in cleaning eye；
2nd, pressure-relieving achor bar is put into the hole being drilled, allows gland cylinder 2 and anchor rod 3 to be all placed in hole, free bar 1 one
It is placed in hole, another part is placed in outside hole；
3rd, anchor rod 3 is fixed toward injection Anchor Agent in hole；
4th, palisades need to be close to by installing pallet 7 and stop nut 8, pallet 7.
It should be noted that according to anchoring section bar 3 and the relative length of free bar 1, resistance pressure-relieving achor bar elongation can will be increased
Region is arranged on the diverse location in whole bolt action area.
The operation principle of increasing resistance pressure-relieving achor bar of the present utility model is as follows：When potential deformation occurs for country rock, generation outwards should
Power will act on pallet 7, promote pallet 7 outwards to stir free bar 1, when this outer pull out force reaches the maximum shearing resistance of latch
When, latch will be trimmed, and free bar 1 produces sliding, and rock mass stress is released.The notch of the long slot bore 11 of free bar 1 reaches
During next latch, the sliding of free bar 1 stops, and overall anchor pole is resumed work, and rock mass stress reaches poised state again.In new rock
Under body stress state, if the pulling capacity that free bar 1 is subject to, still greater than the work axle power of anchor pole, latch is cut again, free
Bar 1 is slid again, and rock mass stress is released again；Until free bar 1 is less than the anti-of latch by the outside pulling capacity of rock mass
During shearing, pressure is allowed to terminate.
Due to being had the advantages that using above-mentioned technical proposal, the utility model：
A kind of increase of the present utility model hinders pressure-relieving achor bar, and long slot bore 11 is opened up on free bar 1, is opened allowing on gland cylinder 2
If pin hole 21, avoid still to be stuck in after latch is cut and allow the clip of gland cylinder 2, solve rear class latch because by prime latch
The problem of influenceing and can not being cut；And the pressure-relieving achor bar is by setting two groups of symmetrical long slot bores 11, increase while stress
Latch quantity improve the ability of meeting with stresses, need to only use common used material just to reach actual working stress requirement, solve to need
To use high Cost Problems caused by high hardness material.
Described above is the detailed description for the preferable possible embodiments of the utility model, but embodiment is not limited to
Patent claim of the present utility model, the equal change or modification completed under the technical spirit suggested by all the utility model
Change, all should belong to the utility model and cover the scope of the claims.
Claims (8)
1. one kind increases resistance pressure-relieving achor bar, including anchor rod, free bar and allow gland cylinder, the anchor rod is fixedly connected on described allow
One end of gland cylinder, it is described to allow the other end of gland cylinder to be sleeved on the outside of described free bar one end, it is characterised in that：It is described from
One section of gland cylinder is allowed to be provided with two long slot bores for extending radially through the free bar, described two length as described in the corresponding connection of bar
Slotted eye is arranged in a crossed manner, and the both ends of the long slot bore are respectively equipped with buffer substrate tablet, and the side wall for allowing gland cylinder is provided with and the elongated slot
Two groups of corresponding symmetrical pin holes of hole site, latch being installed in the pin hole, the latch runs through the long slot bore,
The lateral wall of the free bar is additionally provided with guide groove, and the guide groove is axially arranged along the free bar, the gland cylinder that allows
Inwall is provided with guide rail corresponding with the guide groove.
2. a kind of increase according to claim 1 hinders pressure-relieving achor bar, it is characterised in that：One of which in the pin hole is
Circular hole, another group is elliptical aperture.
3. a kind of increase according to claim 2 hinders pressure-relieving achor bar, it is characterised in that：The latch include straight cylinder latch and
Band arc groove latch, the band arc groove latch middle part are provided with an arc groove, and the circular arc groove radius is equal to the straight cylinder
The diameter of latch, the straight cylinder latch are placed in the arc groove, and the straight cylinder latch is matched somebody with somebody with the band arc groove latch
Close and use, the straight cylinder latch passes through the circular hole, and the band arc groove latch passes through the elliptical aperture.
4. a kind of increase according to claim 3 hinders pressure-relieving achor bar, it is characterised in that：The latch allows gland cylinder to connect with described
It is hollow cavity to touch section, and the hollow cavity of each latch is of different sizes.
5. a kind of increase according to claim 3 hinders pressure-relieving achor bar, it is characterised in that：The latch allows gland cylinder to connect with described
Touch section and be provided with breach, and the notch depth of each latch is different.
6. a kind of increase according to claim 3 hinders pressure-relieving achor bar, it is characterised in that：The latch is by brittle metal material system
Into.
7. a kind of increase according to claim 6 hinders pressure-relieving achor bar, it is characterised in that：Allowed described in the anchor rod threaded connection
Gland cylinder.
8. pressure-relieving achor bar is hindered according to a kind of any described increase of claim 1-7, it is characterised in that：Also include pallet and spacing spiral shell
Mother, the pallet are placed on the free bar, and the stop nut rotation set is carried out in the end of the free bar to the pallet
It is spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720839921.6U CN206903682U (en) | 2017-07-12 | 2017-07-12 | One kind increases resistance pressure-relieving achor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720839921.6U CN206903682U (en) | 2017-07-12 | 2017-07-12 | One kind increases resistance pressure-relieving achor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206903682U true CN206903682U (en) | 2018-01-19 |
Family
ID=61312841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720839921.6U Expired - Fee Related CN206903682U (en) | 2017-07-12 | 2017-07-12 | One kind increases resistance pressure-relieving achor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206903682U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120095A (en) * | 2018-08-08 | 2019-01-01 | 东莞市特姆优传动科技有限公司 | A kind of modular power push rod of assembling easy to disassemble |
| CN110629752A (en) * | 2019-08-29 | 2019-12-31 | 江苏科技大学 | Deformation compensation anchor rod and using method thereof |
| CN111041917A (en) * | 2019-12-30 | 2020-04-21 | 常州市市政工程设计研究院有限公司 | Foundation ditch road bed backfill structure |
| CN111502719A (en) * | 2020-03-24 | 2020-08-07 | 山东大学 | Slow-release resistance-increasing yielding anchor rod and method |
| CN112302696A (en) * | 2020-09-30 | 2021-02-02 | 中煤科工开采研究院有限公司 | Anchor rod assembly |
-
2017
- 2017-07-12 CN CN201720839921.6U patent/CN206903682U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120095A (en) * | 2018-08-08 | 2019-01-01 | 东莞市特姆优传动科技有限公司 | A kind of modular power push rod of assembling easy to disassemble |
| CN110629752A (en) * | 2019-08-29 | 2019-12-31 | 江苏科技大学 | Deformation compensation anchor rod and using method thereof |
| CN111041917A (en) * | 2019-12-30 | 2020-04-21 | 常州市市政工程设计研究院有限公司 | Foundation ditch road bed backfill structure |
| CN111502719A (en) * | 2020-03-24 | 2020-08-07 | 山东大学 | Slow-release resistance-increasing yielding anchor rod and method |
| CN111502719B (en) * | 2020-03-24 | 2021-02-23 | 山东大学 | Slow-release resistance-increasing yielding anchor rod and method |
| CN112302696A (en) * | 2020-09-30 | 2021-02-02 | 中煤科工开采研究院有限公司 | Anchor rod assembly |
| CN112302696B (en) * | 2020-09-30 | 2023-02-28 | 中煤科工开采研究院有限公司 | Anchor rod assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 530200 No.21 Pingle Avenue, Liangqing District, Nanning City, Guangxi Zhuang Autonomous Region Patentee after: GUANGXI ROAD AND BRIDGE ENGINEERING GROUP Co.,Ltd. Address before: 530011 No. 17 Zhonghua Road, the Guangxi Zhuang Autonomous Region, Nanning Patentee before: GUANGXI ROAD AND BRIDGE ENGINEERING GROUP Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 Termination date: 20210712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |