CN210829335U - Slip casting stock of adjustable hole sealing degree of depth - Google Patents
Slip casting stock of adjustable hole sealing degree of depth Download PDFInfo
- Publication number
- CN210829335U CN210829335U CN201921942220.0U CN201921942220U CN210829335U CN 210829335 U CN210829335 U CN 210829335U CN 201921942220 U CN201921942220 U CN 201921942220U CN 210829335 U CN210829335 U CN 210829335U
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- grouting anchor
- limiting ring
- hole sealing
- supporting plate
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 27
- 238000007569 slipcasting Methods 0.000 title description 19
- 239000002184 metal Substances 0.000 claims abstract description 10
- 238000005266 casting Methods 0.000 abstract description 3
- 239000011435 rock Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a grouting anchor rod capable of adjusting hole sealing depth, which comprises a grouting anchor rod body, a round square nut, a metal gasket, a tray and a limiting device; the limiting device comprises a limiting ring, a rubber ring and a supporting plate which are sequentially arranged on the body of the grouting anchor rod from inside to outside; the limiting ring is composed of two symmetrical tile-holding structures, the limiting ring is provided with a connecting part, the connecting part is provided with a bolt hole, and the limiting ring is tightly connected with the anchor rod through a bolt; the rubber ring and the supporting plate are respectively and tightly sleeved with the body of the grouting anchor rod, the outer end of the supporting plate is sequentially provided with a tray and a metal washer which are sleeved on the body of the grouting anchor rod, and the tail end of the anchor rod is in threaded connection with a round and square nut. The utility model discloses the stock adopts casting stage by stage, forges the body of rod part earlier and forms, and stop device forges according to body of rod size design, and the bolt connection forms complete whole with the two according to hole sealing degree of depth and stock length.
Description
Technical Field
The utility model relates to a slip casting stock of adjustable hole sealing degree of depth especially is suitable for mine roadway, tunnel, and the hole sealing degree of depth is adjusted to ration when anchor such as underground works are strutted to play the effect of perfecting the slip casting effect.
Background
With the continuous development of the coal industry in China, potential safety hazards naturally exist in the process of mining area construction, and the main reason is roof fall and collapse accidents. A large number of engineering practices show that the anchor-grouting support technology is an effective measure for maintaining the stability of surrounding rocks of the roadway and reducing accidents.
Due to the development of the cracks of the surrounding rock, the surrounding rock loosens after the roadway is excavated, and the strength is reduced. After the anchor rod is grouted and reinforced, the mechanical properties such as the strength of the surrounding rock can be improved. The prior art can only meet the requirements of shallow hole sealing and can not quantitatively adjust the hole sealing depth. In actual deep hole sealing engineering, cotton yarns and cloth strips are mostly wound on a grouting anchor rod, but slurry discharged by the method can still be filtered through the cotton yarns, effective plugging cannot be realized, the deep grouting effect is not obvious, and the treatment work after grouting is complicated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough and furthest's saving cost among the prior art and the slip casting stock of adjustable hole sealing degree of depth that proposes, solve deep slip casting difficulty and can not the problem of quantitative adjustment hole sealing degree of depth. The utility model discloses a method is simple, and simple to operate has improved the deep slip casting effect of slip casting stock effectively.
In order to achieve the purpose, the utility model provides a grouting anchor rod capable of adjusting hole sealing depth, which comprises a grouting anchor rod body, a round square nut, a metal washer, a tray and a limiting device; the limiting device comprises a limiting ring, a rubber ring and a supporting plate which are sequentially arranged on the body of the grouting anchor rod from inside to outside; the limiting ring is composed of two symmetrical tile-holding structures, the limiting ring is provided with a connecting part, the connecting part is provided with a bolt hole, and the limiting ring is tightly connected with the anchor rod through a bolt; the rubber ring and the supporting plate are respectively and tightly sleeved with the grouting anchor rod body, the outer end of the supporting plate is sequentially provided with a tray and a metal gasket which are sleeved on the grouting anchor rod body, and the tail end of the anchor rod is in threaded connection with a round square nut.
The outer diameters of the limiting ring and the rubber ring are equal, and the outer diameters of the limiting ring and the rubber ring are equal to the inner diameter of the outer drill.
The longitudinal section of the supporting plate is of a T-shaped structure, the outer diameter of the thicker end of the supporting plate is equal to that of the limiting ring, and the outer diameter of the thinner end of the supporting plate is not larger than that of the tray.
The number of the rubber rings is determined according to the position of the limiting ring.
The thickness of the limiting ring is equal to the thickness of the pipe wall of the grouting anchor rod body.
During the use, pass through bolted connection with the spacing ring on the specific position of the slip casting stock body of rod, later rubber ring, backup pad, tray, metal packing ring overlap in proper order on the body of rod and meet with circle square nut, screw up circle square nut at slip casting stock body of rod afterbody at last, the slip casting stock installation of whole adjustable hole sealing degree of depth is accomplished the back, and when the slip casting pump starts the back, the thick liquid has reached the anchor and has annotated the purpose in flowing into the deep rock mass through the body.
The inner diameter R of the rubber ring is the same as the outer diameter of the anchor rod, the outer diameter R is the same as the inner diameter of the drilled hole, and the height h is equal to the inner diameter of the drilled hole. The rubber ring is pressed and expanded under the extrusion of the supporting plate, and if the rubber ring is an elastic body, the rubber ring deforms in the circumferential direction
Setting the annular deformation delta to completely block the orifice at the position of the limiting ring and prevent the slurry from seeping>c, then
Can be adjusted by changing the height of the rubber ringAnd (4) joint ring axial deformation. The method ensures the hole sealing depth, ensures that the limiting device does not need to be made of special steel, saves materials and achieves the economic and practical effects.
Has the advantages that:
the material of stock main part is the same with the material of spacing ring, but considers the additional problem of the different productions of hole sealing depth in the actual engineering, the utility model discloses the stock adopts casting stage by stage, forges the body of rod part earlier and forms, and stop device forges according to body of rod size design, forms complete whole with bolted connection for the two according to hole sealing degree of depth and stock length. The process is short, the connection is simple, the casting time of the anchor rod is effectively saved, the labor amount is saved, and the production efficiency is improved.
In order to ensure that the grout smoothly flows into the deep surrounding rock cracks from the anchor rod, the outer diameters of the limiting ring and the rubber ring are equal to the inner diameter of the drilled hole, the inner diameter of the limiting ring is equal to the outer diameter of the grouting anchor rod hole, and meanwhile, the rubber ring is in a compressed expansion state to completely plug the gap between the limiting ring and the drilled hole, so that the grout can be ensured to plug the cracks with the preset depth.
Drawings
Fig. 1 is the structural schematic diagram of the slip casting stock of this utility model adjustable hole sealing degree of depth.
Fig. 2 is a schematic structural diagram of the support plate, the rubber ring and the limit ring respectively.
Fig. 3 is a schematic view of the connection mode of the limiting ring and the grouting anchor rod.
In the figure: 1-round square nut; 2-a metal gasket; 3, a tray; 4-a support plate; 5-rubber ring; 6, a limiting ring; 7-grouting anchor rod body.
Detailed Description
An embodiment of the present invention is further described with reference to the accompanying drawings:
as shown in figure 1, the slip casting stock of adjustable hole sealing degree of depth, its structure comprises slip casting stock body of rod 7, round square nut 1, metal washer 2, tray 3 and stop device, and stop device includes spacing ring 6, rubber ring 5 and backup pad 4, and the thickness of spacing ring 6 equals with the slip casting stock wall thickness. When the grouting anchor rod body 7 is used, the limiting ring 6 is sleeved on a specific position of the grouting anchor rod body 7 (as shown in fig. 3), then the rubber ring 5, the supporting plate 4, the tray 3 and the metal washer 2 are sequentially sleeved on the rod body and connected with the round and square nut 1, and finally the round and square nut 1 is screwed on the tail portion of the grouting anchor rod body 7. After the installation of the whole slip casting stock of adjustable hole sealing degree of depth was accomplished, when the grouting pump started the back, the thick liquid reached the anchor in flowing into the deep rock body through the body and annotated the purpose. Due to the adjustability of the limiting ring 6, after the hole sealing depth is determined, slurry flows to the limiting ring 6 after flowing out of the grouting anchor rod body 7 through adjusting the position of the limiting ring 6 and the height of the rubber ring 5, and can directly plug a target surrounding rock crack, so that the problems that deep grouting is difficult and the hole sealing depth cannot be adjusted quantitatively are solved by a good grouting effect.
This slip casting stock of adjustable hole sealing degree of depth simple structure of utility, simple to operate can accomplish deep slip casting effectively, improves the anchor effect of annotating.
Claims (5)
1. A grouting anchor rod capable of adjusting hole sealing depth comprises a grouting anchor rod body, a round and square nut, a metal washer, a tray and a limiting device; the grouting anchor rod body limiting device is characterized by comprising a limiting ring, a rubber ring and a supporting plate which are sequentially arranged on the grouting anchor rod body from inside to outside; the limiting ring is composed of two symmetrical tile-holding structures, the limiting ring is provided with a connecting part, the connecting part is provided with a bolt hole, and the limiting ring is tightly connected with the anchor rod through a bolt; the rubber ring and the supporting plate are respectively and tightly sleeved with the grouting anchor rod body, the outer end of the supporting plate is sequentially provided with a tray and a metal gasket which are sleeved on the grouting anchor rod body, and the tail end of the anchor rod is in threaded connection with a round square nut.
2. The grouting anchor rod capable of adjusting hole sealing depth according to claim 1, wherein the limiting ring and the rubber ring have the same outer diameter and the same inner diameter as the outer drill.
3. The grouting anchor rod capable of adjusting hole sealing depth according to claim 1, wherein the longitudinal section of the supporting plate is a T-shaped structure, the outer diameter of the thicker end of the supporting plate is equal to that of the limiting ring, and the outer diameter of the thinner end of the supporting plate is not larger than that of the tray.
4. The grouting anchor rod capable of adjusting hole sealing depth according to claim 1, wherein at least one rubber ring is arranged, and the number of the rubber rings is determined according to the position of the limiting ring.
5. The grouting anchor rod capable of adjusting hole sealing depth according to claim 1, wherein the thickness of the limiting ring is equal to the thickness of the pipe wall of the body of the grouting anchor rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921942220.0U CN210829335U (en) | 2019-11-12 | 2019-11-12 | Slip casting stock of adjustable hole sealing degree of depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921942220.0U CN210829335U (en) | 2019-11-12 | 2019-11-12 | Slip casting stock of adjustable hole sealing degree of depth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210829335U true CN210829335U (en) | 2020-06-23 |
Family
ID=71271611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921942220.0U Expired - Fee Related CN210829335U (en) | 2019-11-12 | 2019-11-12 | Slip casting stock of adjustable hole sealing degree of depth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210829335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320412A (en) * | 2021-11-26 | 2022-04-12 | 淮北矿业股份有限公司 | Grouting anchor rod hole sealing tray |
-
2019
- 2019-11-12 CN CN201921942220.0U patent/CN210829335U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320412A (en) * | 2021-11-26 | 2022-04-12 | 淮北矿业股份有限公司 | Grouting anchor rod hole sealing tray |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200623 Termination date: 20201112 |