CN211174161U - Anchor cable support pressure release device for coal mine tunnel - Google Patents
Anchor cable support pressure release device for coal mine tunnel Download PDFInfo
- Publication number
- CN211174161U CN211174161U CN201921736005.5U CN201921736005U CN211174161U CN 211174161 U CN211174161 U CN 211174161U CN 201921736005 U CN201921736005 U CN 201921736005U CN 211174161 U CN211174161 U CN 211174161U
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- Prior art keywords
- pressure relief
- coal mine
- pressure release
- base
- pressure
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- 239000003245 coal Substances 0.000 title claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005728 strengthening Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 8
- 239000011435 rock Substances 0.000 description 8
- 238000004873 anchoring Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
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Abstract
The utility model discloses a pressure release device is strutted to anchor rope for coal mine tunnel, including rectangular base, the base place on coal mine tunnel ground, the long limit direction of base top be equipped with an upper surface for arc and longitudinal section be the concave pressure release groove, pressure release groove and base between be equipped with a plurality of triangle-shaped strengthening rib piece, pressure release groove both ends all be equipped with a mount pad, mount pad and pressure release groove below all with base top welded fastening, the mount pad between be equipped with the axle that releases pressure, the axle that releases pressure pass pressure release inslot portion and both ends all fixed through round pin axle and mount pad. The device is used for releasing the stratum pressure that the stock received, improves stock construction position department and the stability of stratum on every side, guarantees constructor's safety.
Description
Technical Field
The utility model relates to an anchor rod safety device technical field, more specifically say, relate to a pressure release device is strutted with anchor rope to colliery tunnel.
Background
The anchor rod is the most basic component of roadway support in the contemporary coal mine, and binds the surrounding rocks of the roadway together, so that the surrounding rocks support themselves. The anchor rod is used as a tension member penetrating into the stratum, one end of the anchor rod is connected with an engineering structure, the other end of the anchor rod penetrates into the stratum, the whole anchor rod is divided into a free section and an anchoring section, the free section is an area for transmitting the tension at the head of the anchor rod to an anchoring body, and the function of the free section is to apply prestress on the anchor rod; the anchoring section is an area where the prestressed tendons and the soil layer are bonded by cement paste, and has the functions of increasing the bonding friction effect of the anchoring body and the soil layer, increasing the bearing effect of the anchoring body, transmitting the pulling force of the free section to the deep part of the soil body and well reinforcing the surrounding rock in the roadway. However, the existing anchor bolt support generally adopts rigid support, and is to reinforce the surrounding rock by means of the own prestress or bearing capacity, once the formation pressure is too large, the anchor bolt cannot resist the impact pressure of the formation at all under the impact of the formation pressure, the anchor bolt can be separated from the surrounding rock, the surrounding rock collapse is caused, and further, the irresistible safety accident occurs.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pressure release device is strutted with anchor rope in coal mine tunnel, the device are used for releasing the stratum pressure that the stock received, improve stock construction position department and the stability of stratum on every side, guarantee constructor's safety.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
An anchor cable support pressure release device for a coal mine roadway comprises a rectangular base, wherein the base is placed on the ground of the coal mine roadway, a pressure release groove with an arc-shaped upper surface and a concave longitudinal section is arranged in the long edge direction above the base, a plurality of triangular reinforcing rib blocks are arranged between the pressure release groove and the base, two ends of the pressure release groove are respectively provided with a mounting seat, the lower parts of the mounting seat and the pressure release groove are welded and fixed with the upper part of the base, a pressure release shaft is arranged between the mounting seats, the pressure release shaft penetrates through the inside of the pressure release groove, two ends of the pressure release shaft are fixed with the mounting seats through a pin shaft, two telescopic support rods and three buffer spring rods are arranged on the side surface of the pressure release shaft along the same straight line at equal intervals, the three buffer spring rods are positioned in the middle positions, the two telescopic support rods are positioned on two sides, and a top plate is arranged above the telescopic support rods and the buffer spring rods, the top plate is provided with a supporting plate, a cushion pad is laid on the supporting plate, a plurality of jacks distributed regularly are arranged on the supporting plate, and through holes corresponding to the jacks in position and size are formed in the cushion pad.
Further, roof below through five mounting holes of equidistance respectively with two flexible bracing pieces and three buffering spring poles fixed, mounting hole and member top can adopt the elasticity buckle connected mode, roof top through about two triangle-shaped insert the triangle-shaped slot embedding that the post corresponds below the supporting plate fixed.
Furthermore, the inside embedding stock of jack has the one end of nut, the supporting plate jack the stock backing plate, wherein, the distribution rule of jack matches with the distribution state of this regional stock, the jack diameter is greater than the stock body diameter.
Furthermore, the telescopic support rod is provided with a locking nut.
Compared with the prior art, the utility model has the advantages that:
According to the device, the pressure generated outside the anchor rod is sequentially released and buffered to the ground of a roadway step by step through the support guard plate, the top plate, the telescopic support rod, the buffer spring rod, the pressure release shaft and the pressure release groove, when the formation pressure is overlarge, the impact resistance of the anchor rod is improved, the anchor rod is prevented from being separated from surrounding rocks, the safety accident of surrounding rock collapse is avoided, and the life safety of constructors is ensured; the slot is adopted to insert the column to fix the top plate and the supporting plate, so that different supporting plates can be conveniently replaced according to the distribution condition of anchor rods at different roadway positions.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure above the top plate of the present invention;
FIG. 3 is a schematic view of the structure below the top plate of the present invention;
In the figure: 1. a base; 2. reinforcing rib blocks; 3. a pressure relief groove; 4. a pin shaft; 5. a pressure release shaft; 6. a mounting seat; 7. locking the nut; 8. a telescopic support rod; 9. supporting the guard plate; 10. a top plate; 11. a cushion pad; 12. a jack; 13. a buffer spring lever; 14. inserting a triangular column; 15. a triangular slot; 16. and (7) installing holes.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the utility model easy to understand and understand, the utility model is further explained by combining with the specific figures.
As shown in fig. 1 to 3, an anchor cable support pressure releasing device for a coal mine tunnel comprises a rectangular base 1, the base 1 is placed on the ground of the coal mine tunnel, a pressure releasing groove 3 with an arc-shaped upper surface and a concave longitudinal section is arranged in the long side direction above the base 1, a plurality of (four in the figure) triangular reinforcing rib blocks 2 are arranged between the pressure releasing groove 3 and the base 1, two mounting seats 6 are arranged at two ends of the pressure releasing groove 3, the lower parts of the mounting seats 6 and the pressure releasing groove 3 are welded and fixed with the upper part of the base 1, a pressure releasing shaft 5 is arranged between the mounting seats 6, the pressure releasing shaft 5 penetrates through the inside of the pressure releasing groove 3, two ends of the pressure releasing shaft are fixed with the mounting seats 6 through pin shafts 4, two telescopic support rods 8 and three buffer spring rods 13 are arranged on the same radial straight line of the side surface of the pressure releasing shaft 5 at equal intervals, the three buffer spring rods 13 are positioned at the middle position, the two, wherein, a top plate 10 is arranged above the telescopic supporting rod 8 and the buffer spring rod 13, a supporting plate 9 is arranged above the top plate 10, a buffer pad 11 is laid above the supporting plate 9, a plurality of (eight in the figure) jacks 12 which are regularly distributed are arranged above the supporting plate 9, through holes corresponding to the positions and the sizes of the jacks 12 are also arranged on the buffer pad 11, five mounting holes 16 which are equidistant are respectively fixed with the two telescopic supporting rods 8 and the three buffer spring rods 13 below the top plate 10, the mounting holes 16 and the top ends of the rods can adopt an elastic buckling connection mode, a triangular slot 15 which is corresponding to the lower part of the supporting plate 9 is embedded and fixed above the top plate 10 through a left triangular inserting column 14 and a right triangular inserting column 14, one end of an anchor rod with a nut is embedded inside the jack 12, the supporting plate 9 supports the anchor rod cushion plate, wherein, the distribution rule of the jacks 12 is matched with the distribution state of, the telescopic support rod 8 is provided with a locking nut 7.
In the actual use process (not all anchor rods at all positions need to be pressure release devices, and the position of a dangerous point with larger formation pressure needs to be), the device is moved to the position below the anchor rod with larger formation impact force, a supporting plate 9 with inserting holes 12 corresponding to the distribution position of the upper anchor rod is selected to be embedded and fixed with a top plate 10, the position of the supporting plate 9 is adjusted through a telescopic supporting rod 8 to align with the exposed outer end of the anchor rod, the anchor rod body enters the inserting holes 12 to be fixed, the supporting plate 9 supports against an anchor rod backing plate and the surrounding formation, then the length of the telescopic supporting rod 8 and the position of a pressure release shaft 5 are respectively fixed through a locking nut 7 and a pin shaft 4, the formation impact force sequentially passes through the supporting plate 9 and the top plate 10 in the working process, and the impact force is gradually absorbed by a cushion pad 11, a buffer spring rod 13, the pressure release, finally, the pressure is released to the base 1 and the ground of the roadway, so that the anchor rod is prevented from falling off and safety accidents are avoided.
The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the foregoing embodiments and description are illustrative only of the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a pressure release device is strutted with anchor rope in coal mine tunnel which characterized in that: the coal mine tunnel pressure relief device comprises a rectangular base, wherein the base is placed on the ground of a coal mine tunnel, a pressure relief groove with an arc-shaped upper surface and a concave longitudinal section is arranged in the long side direction above the base, a plurality of triangular reinforcing rib blocks are arranged between the pressure relief groove and the base, two mounting seats are arranged at two ends of the pressure relief groove, the lower parts of the mounting seats and the pressure relief groove are welded and fixed above the base, a pressure relief shaft is arranged between the mounting seats, the pressure relief shaft penetrates through the inside of the pressure relief groove, two ends of the pressure relief shaft are fixed with the mounting seats through a pin shaft, two telescopic support rods and three buffer spring rods are arranged on the side surface of the pressure relief shaft in the same straight line at equal intervals in the radial direction, the three buffer spring rods are positioned in the middle positions, the two telescopic support rods are positioned on two sides, a top plate is arranged above the telescopic support rods and the buffer spring rods, and a protective plate is arranged, and a cushion pad is laid above the supporting plate, wherein a plurality of jacks which are regularly distributed are arranged above the supporting plate, and through holes corresponding to the jacks in position and size are also formed in the cushion pad.
2. The anchor cable support pressure relief device for the coal mine roadway according to claim 1, wherein: the roof below through five mounting holes of equidistance respectively with two flexible bracing pieces and three buffering spring poles fixed, mounting hole and member top can adopt the elasticity buckle connected mode.
3. The anchor cable support pressure relief device for the coal mine roadway according to claim 1, wherein: the anchor rod is embedded into the jack, one end of the anchor rod is provided with a nut, the support plate props against the anchor rod base plate, the distribution rule of the jack is matched with the distribution state of the anchor rod in the area, and the diameter of the jack is larger than that of the anchor rod body.
4. The anchor cable support pressure relief device for the coal mine roadway according to claim 1, wherein: and the telescopic support rod is provided with a locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921736005.5U CN211174161U (en) | 2019-10-16 | 2019-10-16 | Anchor cable support pressure release device for coal mine tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921736005.5U CN211174161U (en) | 2019-10-16 | 2019-10-16 | Anchor cable support pressure release device for coal mine tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211174161U true CN211174161U (en) | 2020-08-04 |
Family
ID=71809726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921736005.5U Expired - Fee Related CN211174161U (en) | 2019-10-16 | 2019-10-16 | Anchor cable support pressure release device for coal mine tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211174161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120350968A (en) * | 2025-06-23 | 2025-07-22 | 东北大学 | Pressure release cushion layer installation method for ultra-deep vertical shaft and pressure release cushion layer protection structure |
-
2019
- 2019-10-16 CN CN201921736005.5U patent/CN211174161U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120350968A (en) * | 2025-06-23 | 2025-07-22 | 东北大学 | Pressure release cushion layer installation method for ultra-deep vertical shaft and pressure release cushion layer protection structure |
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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: 20200804 Termination date: 20201016 |