CN214887154U - Expansion anchor rod capable of being quickly recovered - Google Patents
Expansion anchor rod capable of being quickly recovered Download PDFInfo
- Publication number
- CN214887154U CN214887154U CN202121662206.2U CN202121662206U CN214887154U CN 214887154 U CN214887154 U CN 214887154U CN 202121662206 U CN202121662206 U CN 202121662206U CN 214887154 U CN214887154 U CN 214887154U
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- CN
- China
- Prior art keywords
- anchor rod
- rod body
- wall
- pull rope
- hinged
- 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
- 239000007787 solid Substances 0.000 claims abstract description 29
- 230000006835 compression Effects 0.000 claims abstract description 18
- 238000007906 compression Methods 0.000 claims abstract description 18
- 239000011435 rock Substances 0.000 abstract description 15
- 238000011084 recovery Methods 0.000 abstract description 6
- 238000004873 anchoring Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses an expansion anchor rod capable of being rapidly recovered, when the anchor rod is driven into a rock mass, a stay cord is pulled downwards from the lower end of an anchor rod body to drive a compression spring section of a slip ring to move downwards, and the stay cord moves downwards along with the stay cord to drive a support rod to open, so that the anchoring of the anchor rod to the surrounding rock mass is increased; when retrieving the stock, extract the fixture block, the spring between fixture block and the stock body inner wall loses the resistance, promote the cutting knife to the direction motion of stay cord place under the elastic force effect, and cut off the stay cord, at this moment, the spring of the solid section in upper portion loses the stay cord pulling force and can upwards kick-back, it still is close to the position of upper end to drive the slip ring upward movement when squeezing into the rock mass than the stock body, the pull rod shifts up thereupon, drive the bracing piece shrink, the stock descends rapidly to the anchor power of rock mass on every side, greatly reduced the recovery degree of difficulty of stock, quick recovery has been realized, the recycle ratio of stock has been improved, the wasting of resources has been reduced.
Description
Technical Field
The utility model relates to an anchor rod, concretely relates to inflation anchor rod that can retrieve fast belongs to the tunnel and struts technical field.
Background
The anchor bolt support is the most common support mode in a coal mine tunnel, can effectively improve the bearing capacity of surrounding rocks and control the deformation of the surrounding rocks, and has the advantages of good support effect, low support cost, simple construction operation and low labor intensity of workers.
In the production process of a coal mine, in many roadways for completing mining, as the anchor rod and surrounding rocks form a uniform anchoring structure, the anchor rod is difficult to recover, the recovery rate is low, and great resource waste is caused.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model provides an inflation stock that can retrieve fast, this stock can realize retrieving fast, improves the recycle ratio of stock, reduces the waste of stock resource.
In order to achieve the purpose, the utility model adopts the technical scheme that the expansion anchor rod capable of being rapidly recovered comprises a drill bit and an anchor rod body, wherein the upper end of the anchor rod body is fixedly connected with the drill bit, the anchor rod body is divided into an upper solid section and a lower hollow section by taking a tray as a boundary, a pair of hinged ear plates are arranged on the outer wall of the lower part of the upper solid section, which is close to the tray, by taking the central axis of the anchor rod body as a symmetry axis, each hinged ear plate is respectively hinged with one end of a supporting rod, each supporting rod is provided with a hinged point on the rod body between the hinged end and the free end and is respectively hinged with the hinged end of a pull rod, and the other end of each pull rod is hinged with a sliding ring sleeved on the outer wall of the upper solid section in a sliding manner; a compression spring I is sleeved on the outer wall of the upper solid section between the hinged lug plate and the sliding ring;
a pair of through holes symmetrically arranged by taking the central axis of the anchor rod body as a symmetry axis are formed in the anchor rod body at the joint of the lower end of the upper solid section and the upper end of the tray, the through holes penetrate through the inner wall and the outer wall of the anchor rod body, and the diameter of the through holes is matched with that of the pull rope;
the lower hollow section comprises a pair of hollow channels which are symmetrically arranged by taking the central axis of the anchor rod body as a symmetry axis, the hollow channels are arranged along the length direction of the anchor rod body of the lower hollow section, the lower end of each hollow channel penetrates through the bottom of the anchor rod body, and the upper end of each hollow channel is communicated with the through hole on the side where the hollow channel is located;
the bottom of the anchor rod body of the lower hollow section is provided with a pair of clamping blocks, a cutting knife and a second spring are arranged between each clamping block and the inner wall of the anchor rod body on the side where the clamping block is located, the cutting edge of the cutting knife faces one side of each clamping block, the knife back is connected with the inner wall of the anchor rod body through the second spring, and the compression stroke of the second spring is not less than the width of each clamping block; the anchor rod body rod wall below each spring II is connected with a pull rope rod;
the side of each clamping block, which is far away from the inner wall of the anchor rod body, is wound with a pull rope, and the lower end of each pull rope is fixed on the pull rope rod on the same side after being wound through the lower end surface of the side clamping block where the pull rope is located;
the upper end of each pull rope penetrates through the hollow channel and the through hole on the side where the pull rope is located, and then is connected to the lower end of the sliding ring along the length direction of the outer wall of the anchor rod body of the upper solid section;
the anchor rod body below the tray is provided with a nut.
Further, a rubber gasket is arranged between the tray and the nut.
Furthermore, the length of the pull rope extends from the lower end of the lower hollow section to the middle of the upper solid section, and the compression stroke of the first compression spring is greater than the length of the pull rope.
Compared with the prior art, the anchor rod body is divided into an upper solid section and a lower hollow section by taking the tray as a boundary, a section of compression spring is sleeved on the outer wall of the upper solid section, a sliding ring is connected above the compression spring, the lower end of the compression spring is hinged with a pair of supporting rods through a pair of connecting lug plates, the supporting rods are connected with the pull rod in a hinged mode, and the other end of the pull rod is hinged with the sliding ring; a pair of hollow channels are arranged in the anchor rod body of the lower hollow section, a pull rope penetrates through the hollow channels from the bottom, a through hole arranged on the anchor rod body penetrating through the joint of the lower end of the upper solid section and the upper end of the tray is connected to the lower end of the sliding ring along the outer wall of the upper solid section, a pair of clamping blocks are arranged at the bottom of the anchor rod body of the lower hollow section, a cutting knife and a spring are arranged between each clamping block and the inner wall of the anchor rod body at the side where the clamping block is arranged, the cutting knife edge faces one side of the clamping block, a knife back is connected with the inner wall of the anchor rod body through the spring, a pull rope rod is connected on the wall of the anchor rod body below the spring, a pull rope is wound on one side of each clamping block away from the inner wall of the anchor rod body, the lower end of each pull rope is fixed on the pull rope rod at the same side after being wound on the lower end face of the clamping block at the side, when the anchor rod is driven into a rock body, the pull rope is pulled downwards from the lower end of the anchor rod body to drive the sliding ring to compress the spring section to move downwards, and the pull rope moves downwards along with the pull rope, the support rod is driven to open, and the anchoring of the anchor rod to the surrounding rock mass is increased; when retrieving the stock, extract the fixture block, the spring between fixture block and the stock body inner wall loses the resistance, promote the cutting knife to the direction motion of stay cord place under the elastic force effect, and cut off the stay cord, at this moment, the spring of the solid section in upper portion loses the stay cord pulling force and can upwards kick-back, it still is close to the position of upper end to drive the slip ring upward movement when squeezing into the rock mass than the stock body, the pull rod shifts up thereupon, drive the bracing piece shrink, the stock descends rapidly to the anchor power of rock mass on every side, greatly reduced the recovery degree of difficulty of stock, quick recovery has been realized, the recycle ratio of stock has been improved, the wasting of resources has been reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the recovery state of the present invention;
FIG. 3 is a schematic view of the internal structure of the hollow section of the middle and lower parts of the present invention;
fig. 4 is a schematic top view of the hollow section of the middle and lower part of the present invention.
In the figure: 1. the drilling bit, 2, the stock body, 3, the tray, 4, upper portion solid section, 5, lower part hollow section, 6, hinge lug, 7, the bracing piece, 8, the pin joint, 9, the pull rod, 10, the slip ring, 11, compression spring one, 12, through-hole, 13, stay cord, 14, hollow passageway, 15, the fixture block, 16, the cutting knife, 17, spring two, 18, the stay cord pole, 19, the nut, 20, rubber gasket.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 to 4, an expansion anchor rod capable of being rapidly recovered comprises a drill bit 1 and an anchor rod body 2, wherein the upper end of the anchor rod body 2 is fixedly connected with the drill bit 1, the anchor rod body 2 is divided into an upper solid section 4 and a lower hollow section 5 by taking a tray 3 as a boundary, a pair of hinge lug plates 6 is arranged on the outer wall of the lower part of the upper solid section 4 close to the tray by taking the central axis of the anchor rod body as a symmetry axis, each hinge lug plate 6 is respectively hinged with one end of a support rod 7, each support rod 7 is provided with a hinge point 8 on the rod body between the hinge end and the free end and is respectively hinged with the hinge end of a pull rod 9, and the other end of each pull rod 9 is hinged with a sliding ring 10 which is slidably sleeved on the outer wall of the upper solid section 4; a compression spring I11 is sleeved on the outer wall of the upper solid section between the hinged lug plate 6 and the sliding ring 10;
a pair of through holes 12 which are symmetrically arranged by taking the central axis of the anchor rod body as a symmetry axis are formed in the anchor rod body at the joint of the lower end of the upper solid section 4 and the upper end of the tray 3, the through holes 12 penetrate through the inner wall and the outer wall of the anchor rod body, and the diameter of the through holes is matched with that of the pull rope 13;
the lower hollow section 5 comprises a pair of hollow channels 14 which are symmetrically arranged by taking the central axis of the anchor rod body as a symmetry axis, the hollow channels 14 are arranged along the length direction of the anchor rod body of the lower hollow section, the lower end of each hollow channel 14 penetrates through the bottom of the anchor rod body 2, and the upper end of each hollow channel is communicated with the through hole 12 on the side where the hollow channel is located;
a pair of fixture blocks 15 are arranged at the bottom of the anchor rod body at the lower hollow section, a cutting knife 16 and a second spring 17 are arranged between each fixture block 15 and the inner wall of the anchor rod body at the side where the fixture block is located, the cutting edge of the cutting knife 16 faces one side of the fixture block 15, the knife back is connected with the inner wall of the anchor rod body through the second spring 17, and the compression stroke of the second spring 17 is not less than the width of the fixture block 15; the wall of the anchor rod body below each spring II 17 is connected with a pull rope rod 18;
a pull rope 13 is wound on one side of each fixture block 15 far away from the inner wall of the anchor rod body, and the lower end of each pull rope 13 is fixed on a pull rope rod 18 on the same side after being wound on the lower end surface of the side fixture block 15 where the pull rope 13 is located;
the upper end of each pull rope 13 passes through the hollow channel 14 and the through hole 12 on the side where the pull rope is located, and then is connected to the lower end of the sliding ring 10 along the length direction of the outer wall of the anchor rod body of the upper solid section 4;
a nut 19 is arranged on the anchor rod body below the tray 3.
Preferably, a rubber gasket 20 is arranged between the tray 3 and the nut 19.
Preferably, the length of the pull rope is extended from the lower end of the lower hollow section 5 to the middle position of the upper solid section 4, and the compression stroke of the compression spring I11 is greater than the length of the pull rope 13.
When the anchor rod is used, firstly, the anchor rod is assembled, the anchor rod is driven into a rock mass after the assembly is finished, then the pull rope is pulled downwards from the lower end of the anchor rod body, the sliding ring is driven to compress the compression spring sleeved on the outer wall of the anchor rod body to move downwards, the pull rod moves downwards along with the sliding ring, the support rod is driven to open, and the anchoring of the anchor rod to the surrounding rock mass is increased; when retrieving the stock, extract the fixture block, the spring between fixture block and the stock body inner wall loses the resistance, promotes the cutting knife under the elastic action and moves to stay cord place direction to with the stay cord severance, at this moment, the spring of the solid section in upper portion loses the stay cord pulling force and can upwards kick-back, drive slip ring upward movement and still be close to the position of upper end when squeezing into the rock mass than the stock body, the pull rod shifts up thereupon, drive the bracing piece shrink, the stock descends rapidly to the anchor power of rock mass on every side, can make things convenient for the efficient to retrieve the stock.
Claims (3)
1. An expansion anchor rod capable of being quickly recovered comprises a drill bit and an anchor rod body, wherein the upper end of the anchor rod body is fixedly connected with the drill bit, and the expansion anchor rod is characterized in that the anchor rod body is divided into an upper solid section and a lower hollow section by taking a tray as a boundary, a pair of hinged lug plates are arranged on the outer wall of the lower part of the upper solid section, which is close to the tray, by taking the central axis of the anchor rod body as a symmetry axis, each hinged lug plate is hinged with one end of a supporting rod, each supporting rod is provided with a hinged point on the rod body between the hinged end and the free end and is hinged with the hinged end of a pull rod, and the other end of each pull rod is hinged with a sliding ring sleeved on the outer wall of the upper solid section in a sliding manner; a compression spring I is sleeved on the outer wall of the upper solid section between the hinged lug plate and the sliding ring;
a pair of through holes symmetrically arranged by taking the central axis of the anchor rod body as a symmetry axis are formed in the anchor rod body at the joint of the lower end of the upper solid section and the upper end of the tray, the through holes penetrate through the inner wall and the outer wall of the anchor rod body, and the diameter of the through holes is matched with that of the pull rope;
the lower hollow section comprises a pair of hollow channels which are symmetrically arranged by taking the central axis of the anchor rod body as a symmetry axis, the hollow channels are arranged along the length direction of the anchor rod body of the lower hollow section, the lower end of each hollow channel penetrates through the bottom of the anchor rod body, and the upper end of each hollow channel is communicated with the through hole on the side where the hollow channel is located;
the bottom of the anchor rod body of the lower hollow section is provided with a pair of clamping blocks, a cutting knife and a second spring are arranged between each clamping block and the inner wall of the anchor rod body on the side where the clamping block is located, the cutting edge of the cutting knife faces one side of each clamping block, the knife back is connected with the inner wall of the anchor rod body through the second spring, and the compression stroke of the second spring is not less than the width of each clamping block; the anchor rod body rod wall below each spring II is connected with a pull rope rod;
the side of each clamping block, which is far away from the inner wall of the anchor rod body, is wound with a pull rope, and the lower end of each pull rope is fixed on the pull rope rod on the same side after being wound through the lower end surface of the side clamping block where the pull rope is located;
the upper end of each pull rope penetrates through the hollow channel and the through hole on the side where the pull rope is located, and then is connected to the lower end of the sliding ring along the length direction of the outer wall of the anchor rod body of the upper solid section;
the anchor rod body below the tray is provided with a nut.
2. A rapidly recoverable expansion bolt according to claim 1, wherein a rubber washer is provided between the tray and the nut.
3. The rapidly recoverable expansion anchor according to claim 1, wherein the length of the pull string is from the lower end of the lower hollow section to the middle of the upper solid section, and the compression stroke of the compression spring is greater than the length of the pull string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121662206.2U CN214887154U (en) | 2021-07-21 | 2021-07-21 | Expansion anchor rod capable of being quickly recovered |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121662206.2U CN214887154U (en) | 2021-07-21 | 2021-07-21 | Expansion anchor rod capable of being quickly recovered |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214887154U true CN214887154U (en) | 2021-11-26 |
Family
ID=78927301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121662206.2U Expired - Fee Related CN214887154U (en) | 2021-07-21 | 2021-07-21 | Expansion anchor rod capable of being quickly recovered |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214887154U (en) |
-
2021
- 2021-07-21 CN CN202121662206.2U patent/CN214887154U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20211126 |