CN207004551U - A kind of new pressure-relieving achor bar - Google Patents
A kind of new pressure-relieving achor bar Download PDFInfo
- Publication number
- CN207004551U CN207004551U CN201720840534.4U CN201720840534U CN207004551U CN 207004551 U CN207004551 U CN 207004551U CN 201720840534 U CN201720840534 U CN 201720840534U CN 207004551 U CN207004551 U CN 207004551U
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- Prior art keywords
- hole
- latch
- bar
- gland cylinder
- cut
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Abstract
The utility model is specifically related to a kind of new pressure-relieving achor bar, including anchor rod, free bar and allow gland cylinder, one end of gland cylinder is allowed to be sleeved on the outside of free bar one end, free bar is being provided with some screwed holes with allowing gland jacket casing to connect section, gland cylinder is allowed to cut off hole provided with some, the position for cutting off hole is corresponding with the position of screwed hole, the length cut off on Kong Rang gland cylinder axis directions is each unequal, latch is threaded with screwed hole, latch passes through and cuts off hole, free bar is additionally provided with guide groove, gland cylinder inner cylinder is allowed to be provided with guide rail corresponding with guide groove, cut off hole and be provided with label, latch is provided with label corresponding with cutting off hole；The length difference on Kong Rang gland cylinder axis directions is cut off to control allowing for pressure-relieving achor bar to press distance by two neighboring, solve the existing single for increasing resistance pressure-relieving achor bar and allow pressure distance because being limited by the two neighboring distance for cutting off hole, and the problem of single allows pressure distance to be designed into very little can not be realized.
Description
Technical field
A kind of tunnel or tunnel support anchor pole are the utility model is related to, more particularly to a kind of new 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, to ensure that the work axle power of rod member does not reduce, the minimum between two neighboring latch
Spacing must not drop below 1 centimetre, cause the single of pressure-relieving achor bar to allow pressure distance to be restricted, and can not design too small, and pass through
Often there is the situation of latch wrong plug latch fixing hole.
Utility model content
In view of the foregoing, it is necessary to a kind of new pressure-relieving achor bar is provided, screwed hole is opened up on free bar, is pressed allowing
Opened up on sleeve and cut off hole, the length cut off on Kong Rang gland cylinder axis directions is each unequal, and hole is cut off by two neighboring
Length difference come control pressure-relieving achor bar allow pressure distance, solve it is existing increase resistance pressure-relieving achor bar single allow pressure distance because by adjacent two
The individual distance limitation for cutting off hole, and the problem of single allows pressure distance to be designed into very little can not be realized.
To reach above-mentioned purpose, technical scheme is used by the utility model：A kind of new pressure-relieving achor bar, including anchor
Gu bar, free bar and allowing gland cylinder, the anchor rod is fixedly connected on described one end for allowing gland cylinder, and the free bar is set in
The other end for allowing gland cylinder, the free bar allow gland jacket casing to connect section to be provided with some screwed holes, the pressure that allows with described
Sleeve cuts off hole provided with some, and the position for cutting off hole is corresponding with the position of the screwed hole, described to cut off Kong Rang pressures
Spacing on sleeve axis direction is each unequal, and the hole that cuts off is provided with label, is threaded with latch in the screwed hole, institute
To state latch and cut off hole through described, the latch is provided with label corresponding with cutting off hole, and the free bar is additionally provided with guide groove,
It is described to allow pressure sleeve lining to be provided with guide rail corresponding with the guide groove.
As an improvement mode, described latch connection screw thread hole one end is threaded post, and the end face of the other end is provided with
Rim of the mouth, it is convenient that latch is screwed into pin hole.
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 cavity sizes of same latch are identical, according to different requirements, sets described insert
The hollow cavity size of pin, 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 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, the inner and outer wall for allowing gland cylinder is equipped with antirust coat, prevents from allowing gland
Cylinder gets rusty, and influences performance.
As an improvement mode, in addition to pallet and stop nut, the pallet is placed on the free bar, described
Stop nut rotation set is spacing to pallet progress in the end of the free bar, and pallet is close on palisades, prevents palisades stress
Discharge too fast.
Due to being had the advantages that using above-mentioned technical proposal, the utility model：
The adjustable pressure-relieving achor bar for increasing resistance distance of the present utility model, hole is cut off provided with some allowing on gland cylinder, cuts off hole
Allowing, the length on gland cylinder axis direction is each unequal, the two neighboring length difference cut off on Kong Rang gland cylinder axis directions
As single, which allows, presses distance, allows pressure distance not limited with very little by the two neighboring distance for cutting off hole, so not interfering with
Free bar axial direction working stress, can be achieved to allow the random design of pressure distance, and cut off hole and latch be equipped with mutually corresponding to
Label, it is only necessary to latch and identical label are cut off into the corresponding installation in hole, it is possible to ensure the correct of snibbing position.
Brief description of the drawings
Fig. 1 is the structural representation of pressure-relieving achor bar of the present utility model；
Fig. 2 is A-A schematic cross-sectional view；
Fig. 3 is to allow the structural representation of gland cylinder；
Fig. 4 is the structural representation of free bar；
Wherein, 1- free bars, 2- allow gland cylinder, 3- anchor rods, 4- latches, 5- pallets, 6- stop nuts, 11- screwed holes,
12- guide grooves, 21- cut off hole.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Shown in reference picture 1, Fig. 2, Fig. 3 and Fig. 4, a kind of new pressure-relieving achor bar, including 3, freedom of an anchor rod
Bar 1 and one allow gland cylinder 2.Anchor rod 3 is solid hopkinson bar, and screw thread is provided with one end outer surface for allowing gland cylinder 2 to be connected, and allows gland
Cylinder 2 be a tubulose, and one end inner cylinder be connected with anchor rod 3 is provided with the screw thread matched with anchor rod 3, and anchor rod 3 is with allowing gland cylinder 2
It is connected with each other by screw thread.Free bar 1 is that filled circles are shaft-like, and a part for free bar 1, which is placed on, allows gland cylinder 2 to connect with anchor rod 3
Connect in the other end, free bar 1 is with allowing one end that gland cylinder 2 is connected to be provided with some screwed holes 11, the remote gland cylinder 2 that allows of free bar 1
One end be provided with threaded post.Allow gland cylinder 2 be provided with the corresponding position of screwed hole 11 it is some cut off hole 21, cut off hole 21 and allowing gland
Spacing on 2 axis directions of cylinder is each unequal, cuts off the edge of hole 21 and allows the axis direction of gland cylinder 2 to be arranged in four row, two be separated by
Row are symmetrical.It is A row, B row, C row and D row that four row cut off hole 21 to be arranged respectively, and A is arranged and B row are symmetrical, and C row and D row are symmetrical, and
Each cutting off hole 21 is provided with label, and label is collectively constituted by row number and serial number, such as A1, B1, C2, D4.In screwed hole 11
Latch 4 is installed with, one end that latch 4 is connected with free bar 1 is threaded post, and threaded post matches with screwed hole, each latch 4
On be additionally provided with corresponding to shearing resistance value, it is convenient to screen suitable latch 4.Latch 4 is provided with cutting off 21 corresponding label of hole,
That is A1, B1, C2, D4 etc., latch 4 are installed to label identical and cut off in hole 21, avoid the not corresponding latch 4 of shearing resistance value
Setup error, it can not realize and cut step by step.Free bar 1 is additionally provided with guide groove 12, and guide groove 12 is the cell body of a cuboid, allows pressure
The inwall of sleeve 2 is provided with the guide rail used with the corresponding matching of guide groove 12, and guide rail is the boss of a cuboid.
With allowing one end that gland cylinder 2 is connected to be provided with some screwed holes 11, screwed hole is used to latch 4 be fixedly mounted free bar 1,
Different latches 4 is provided with different shearing resistance value, can be achieved to cut step by step, slow release stress.Gland cylinder 2 is allowed corresponding
The position of screwed hole 11 cuts off hole 21 provided with some, and latch 4 cuts off hole 21 and be used to cut latch 4, two cut off hole through hole 21 is cut off
21 are making the spacing on the axis direction of gland cylinder 2 each unequal, it can be ensured that allow pressure distance random design, the axis not born
The influence of stress intensity.Cut off hole 21 for corresponding a pair and latch 4 is provided with identical label, latch 4 need to be only installed during installation
Hole 21 is cut off in label identical, the situation that setup error would not occur.
As a preferred embodiment, one end of the connection screw thread hole 11 of latch 4 is threaded post, the end face of the other end has been provided with rim of the mouth,
It is convenient to tighten latch 4.
As a preferred embodiment, latch 4 and allow the contact-segment of gland cylinder 2 be hollow cavity 41, and each hollow cavity of latch 4
41 is different, according to different requirements, by designing the size of hollow cavity 41 of latch 4, obtain different shearing resistance values, cut
Cut Resistance Value increases step by step, and realization is cut step by step.
As a preferred embodiment, latch 4 is made up of brittle metal material, it is ensured that latch 4 can be directly broken when being cut, and be kept away
Exempt from separated but still in each other's thoughts.
As a preferred embodiment, allowing the inner and outer wall of gland cylinder 2 to be equipped with antirust coat, prevent from allowing gland cylinder 2 to get rusty, keep away
Exempt from iron rust and be stuck in allow between gland cylinder 2 and free bar 1 and can not slide, it is impossible to realize the stress release of detritus, while also avoid
Iron rust rust wears gland cylinder 2 and influences to use.
As a preferred embodiment, also including a pallet 5 and a stop nut 6 for being used for spacing pallet 5, pallet 5 is placed on
On free bar 1, the rotation set of stop nut 6 is spacing in the threaded post of free bar 1, being carried out to pallet 5, and pallet 5 is close to palisades, support
Firmly greater area of palisades, realize that the stress of more large area palisades slowly discharges.
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 5 and stop nut 6, pallet 5.
Once the operation principle of 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 5, promote pallet 5 outwards to stir free bar 1, when this pulling capacity reaches the maximum shearing resistance of latch 4
When, latch 4 will be cut, and free bar 1 produces sliding, and rock mass stress is released.Next latch 4, which arrives again at, allows gland cylinder 2
It is next cut off hole 21 notch when, the sliding of free bar 1 stops, and overall anchor pole resumes work, and rock mass stress reaches balance again
State.Under new rock mass stress state, if the pulling capacity that free bar 1 is subject to, still greater than the work axle power of anchor pole, latch 4 is again
Secondary to be cut, free bar 1 is slid again, and rock mass stress is released again；Until free bar 1 is by the outside pulling capacity of rock mass
Less than latch 4 shearing resistance when, allow pressure to terminate.
Due to being had the advantages that using above-mentioned technical proposal, the utility model：
A kind of new pressure-relieving achor bar of the present utility model, opens up screwed hole 11 on free bar 1, is allowing on gland cylinder 2
Open up and cut off hole 21, and cut off hole 21 and making the length on the axis direction of gland cylinder 2 each unequal, it is two neighboring to cut off hole 21
Allow the length difference on the axis direction of gland cylinder 2 be single allow pressure distance, allow pressure distance can not cut with very little by two neighboring
The distance limitation of pin-and-hole 21, so do not interfere with 1 axial working stress of free bar, it can be achieved to allow the random design of pressure distance,
And cut off hole 21 and latch 4 be equipped with mutually corresponding to label, it is only necessary to latch 4 and identical label are cut off into the correspondence of hole 21
Installation, it is possible to ensure the correct of the position of latch 4.
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 (7)
1. a kind of new 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, the free bar is set in the other end for allowing gland cylinder, the free bar with the gland that allows
Jacket casing connects section and is provided with some screwed holes, it is characterised in that：It is described to allow gland cylinder to cut off hole, the position for cutting off hole provided with some
Corresponding with the position of the screwed hole, the spacing that cuts off on Kong Rang gland cylinder axis directions is each unequal, described to cut
Pin-and-hole is provided with label, and latch is threaded with the screwed hole, and the latch cuts off hole through described, and the latch is provided with
Label corresponding with cutting off hole, the free bar is additionally provided with guide groove, described to allow pressure sleeve lining to be provided with and the guide groove
Corresponding guide rail.
A kind of 2. new pressure-relieving achor bar according to claim 1, it is characterised in that：Described latch connection screw thread hole one end
For threaded post, the end face of the other end has been provided with rim of the mouth.
A kind of 3. new pressure-relieving achor bar according to claim 2, it is characterised in that：The latch and the gland cylinder that allows
Contact-segment is hollow cavity, and the hollow cavity of each latch is of different sizes.
A kind of 4. new pressure-relieving achor bar according to claim 2, it is characterised in that：The latch is by brittle metal material
It is made.
A kind of 5. new pressure-relieving achor bar according to claim 1, it is characterised in that：Described in the anchor rod threaded connection
Allow gland cylinder.
A kind of 6. new pressure-relieving achor bar according to claim 1, it is characterised in that：The inwall for allowing gland cylinder and outer
Wall is equipped with antirust coat.
7. according to a kind of any described new pressure-relieving achor bars of claim 1-6, it is characterised in that：Also include pallet and spacing
Nut, the pallet are placed on the free bar, and the stop nut rotation set enters in the end of the free bar to the pallet
Row is spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720840534.4U CN207004551U (en) | 2017-07-12 | 2017-07-12 | A kind of new pressure-relieving achor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720840534.4U CN207004551U (en) | 2017-07-12 | 2017-07-12 | A kind of new pressure-relieving achor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207004551U true CN207004551U (en) | 2018-02-13 |
Family
ID=61453898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720840534.4U Expired - Fee Related CN207004551U (en) | 2017-07-12 | 2017-07-12 | A kind of new pressure-relieving achor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207004551U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112678A (en) * | 2020-09-07 | 2020-12-22 | 中铁武汉勘察设计研究院有限公司 | Anchor rod with side wings and provided with check valve and used for extruding soil body |
| CN115263393A (en) * | 2022-07-29 | 2022-11-01 | 泰安泰烁岩层控制科技有限公司 | Elastic support anchoring system for building and roadway construction |
-
2017
- 2017-07-12 CN CN201720840534.4U patent/CN207004551U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112678A (en) * | 2020-09-07 | 2020-12-22 | 中铁武汉勘察设计研究院有限公司 | Anchor rod with side wings and provided with check valve and used for extruding soil body |
| CN112112678B (en) * | 2020-09-07 | 2024-05-17 | 中铁武汉勘察设计院有限公司 | A take flank stock for extruding soil body with check valve |
| CN115263393A (en) * | 2022-07-29 | 2022-11-01 | 泰安泰烁岩层控制科技有限公司 | Elastic support anchoring system for building and roadway construction |
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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: 20180213 Termination date: 20210712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |