CN216809875U - Stress and deformation adjustable prestressed anchor cable - Google Patents
Stress and deformation adjustable prestressed anchor cable Download PDFInfo
- Publication number
- CN216809875U CN216809875U CN202220283409.9U CN202220283409U CN216809875U CN 216809875 U CN216809875 U CN 216809875U CN 202220283409 U CN202220283409 U CN 202220283409U CN 216809875 U CN216809875 U CN 216809875U
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- Prior art keywords
- pipe
- steel strand
- deformation
- anchor cable
- anchor
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- Expired - Fee Related
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- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 42
- 239000004519 grease Substances 0.000 abstract description 44
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 30
- 239000011435 rock Substances 0.000 abstract description 20
- 230000005574 cross-species transmission Effects 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of anchor cables, in particular to a stress and deformation adjustable prestressed anchor cable which comprises an anchor head, wherein a steel strand is arranged on one side of the anchor head, a corrugated pipe is sleeved on the outer surface of the steel strand, a tension adjusting mechanism is arranged at one end, away from the anchor head, of the steel strand, the outer surface of the tension adjusting mechanism is in threaded connection with a connecting mechanism, and a protective cap is fixedly arranged on one side of the connecting mechanism. The utility model has the advantages that: through setting up pulling force adjustment mechanism, after using a terminal time, under the high stress effect, when the pulling force that leads to the anchor rope reduces, dismantle the helmet, then rotate the screwed pipe through adjusting the head, can taut steel strand wires, ensure the pulling force of anchor rope to ensure the stability of rock mass, through setting up spring and closing plate, when the oiling, avoid rust-resistant grease to spill over from the oiling pipe and be infected with on operating personnel's hand or clothes, avoid causing rust-resistant grease's waste simultaneously.
Description
Technical Field
The utility model relates to the technical field of anchor cables, in particular to a prestressed anchor cable with adjustable stress and deformation.
Background
The anchor cable is a prestressed steel strand which is fixed on the slope surface through the outer end and passes through the sliding surface of the side slope in a stable rock body with the other end anchored in the sliding surface, so that the anti-sliding resistance is directly generated on the sliding surface, the anti-sliding friction resistance is increased, the structural surface is in a compact state, and the integrity of the rock body of the side slope is improved, thereby fundamentally improving the mechanical property of the rock body, effectively controlling the displacement of the rock body, promoting the stability of the rock body, and achieving the purpose of renovating bedding, sliding slopes, dangerous rocks and dangerous rocks.
The prestressed anchor cable is a cable-shaped support for anchoring the anchor cable in the rock body by adopting a prestressed method and is used for reinforcing the side slope. The anchor cable is anchored into the rock body through the hole of the weak structural plane of the rock body by the anchor head, and the sliding body is connected with the stable rock layer, so that the stress state of the slope rock body is changed, and the integrity and the strength of the unstable rock body of the slope are improved.
In the early 90 s of the 20 th century, unbonded anchor cables were introduced into China by hydropower construction. Because of the advantages of convenient construction, strong corrosion resistance and the like, the unbonded anchor cable is preferably used for engineering possibly suffering from dynamic load and reinforcing corrosive strata.
However, the existing unbonded anchor cable has the following disadvantages:
1. the steel strand wires of the unbonded anchor cable are not bonded with surrounding rocks, the reinforcing effect of the anchor cable on the rock mass completely depends on the tension of the anchor cable, the tension of the anchor cable is only the clamping force of the clamping piece on a small section of steel strand wires, and under the action of long time and high stress, the clamping piece and the section of steel strand wires clamped by the clamping piece inevitably generate certain displacement along the tension direction, so that the tension of the anchor cable is reduced, and the stability of the rock mass can be lost due to insufficient sliding resistance;
2. present unbonded anchor rope, outer anchor head department is provided with the special helmet that is full of rust-resistant grease, in order to ensure to avoid the anchor rope corroded, need pour into rust-resistant grease into again to the helmet after rust-resistant grease loss, among the prior art, generally can set up the grease injection hole on the helmet and come the staff's of being convenient for injection rust-resistant grease, at the in-process of pouring into rust-resistant grease, rust-resistant grease probably spills over from grease injection hole, fall on operating personnel's hand or the clothes, neither be convenient for clear up, can cause rust-resistant grease's waste again.
Therefore, it is desirable to provide a prestressed anchorage cable with adjustable stress and deformation to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a prestressed anchor cable with adjustable stress and deformation.
The purpose of the utility model is realized by the following technical scheme: a prestressed anchor cable with adjustable stress and deformation comprises an anchor head, wherein a steel strand is arranged on one side of the anchor head, a corrugated pipe is sleeved on the outer surface of the steel strand, a tension adjusting mechanism is arranged at one end, away from the anchor head, of the steel strand, the outer surface of the tension adjusting mechanism is in threaded connection with a connecting mechanism, and a protective cap is fixedly arranged on one side of the connecting mechanism;
the tension adjusting mechanism comprises a threaded pipe, a limiting ring, an adjusting head and a clamping piece, wherein one end of the threaded pipe is fixedly connected with the limiting ring, one end of the threaded pipe, which is far away from the limiting ring, is fixedly connected with the adjusting head, and the middle part of the adjusting head is provided with the clamping piece;
the helmet comprises a helmet body, a sealing strip, an oil injection pipe, an air outlet pipe, a connecting frame, a sliding shaft, a limiting block, a spring and a sealing plate, wherein the sealing strip is fixedly connected to one side of the helmet body, the oil injection pipe is fixedly connected to one side of the helmet body, the air outlet pipe is fixedly connected to one side of the helmet body, the connecting frame is fixedly connected to the inner portion of the helmet body, the sliding shaft is slidably connected to the middle of the connecting frame, the limiting block is fixedly connected to one end of the sliding shaft, the spring is arranged on the outer surface of the sliding shaft, and the sealing plate is fixedly connected to one end of the sliding shaft, away from the limiting block.
Preferably, the connecting mechanism comprises a base plate, a threaded hole and a sealing groove, the threaded hole is formed in one side of the base plate, and the sealing groove is formed in one side of the base plate.
Preferably, the position of the sealing plate corresponds to the position of the oil filling pipe, and the sealing plate is made of rubber.
Through adopting above-mentioned technical scheme, after rust-resistant grease loss, when need pour into rust-resistant grease into to the helmet, open the sealed lid on notes oil pipe and the outlet duct, then pour into rust-resistant grease into from notes oil pipe, when pouring into, rust-resistant grease can promote the closing plate, the spring shrink, during the grease enters into the cap body, through setting up spring and closing plate, when the oiling, avoid rust-resistant grease to spill over from notes oil pipe and be infected with on operating personnel's hand or clothes, avoid causing rust-resistant grease's waste simultaneously.
Preferably, the number of the clamping pieces is two, and the two clamping pieces are positioned at one end, far away from the anchor head, of the steel strand.
Preferably, the threaded pipe is in threaded connection with the backing plate through a threaded hole.
Through adopting above-mentioned technical scheme, when the pulling force of anchor rope reduced, dismantle the helmet, then rotate the screwed pipe through adjusting the head, can take up the steel strand wires, ensure the pulling force of anchor rope.
Preferably, the sealing strip is adapted to the sealing groove.
Through adopting above-mentioned technical scheme, when using, the sealing strip is pegged graft in the seal groove, has ensured the leakproofness of helmet.
Preferably, the top of the oil filling pipe and the top of the air outlet pipe are both provided with sealing covers.
By adopting the technical scheme, after the anti-rust grease is filled, the sealing cover is arranged on the oil filling pipe and the air outlet pipe.
Preferably, the cap body is fixedly installed at one side of the pad plate by a bolt.
Through adopting above-mentioned technical scheme, be convenient for install or dismantle the helmet.
The utility model has the following advantages:
1. according to the prestress anchor cable with adjustable stress and deformation, by the aid of the tension adjusting mechanism, after the prestress anchor cable is used for a period of time, the clamping piece and the steel strand clamped by the clamping piece are inevitably subjected to certain displacement along the tension direction under the action of high stress, so that tension of the anchor cable is reduced, at the moment, the protective cap is disassembled, and then the steel strand can be tensioned by rotating the threaded pipe through the adjusting head, so that tension of the anchor cable is ensured, and stability of a rock body is ensured;
2. this stress and deformation adjustable prestressed anchorage cable, through setting up the helmet, after rust-resistant grease loss, when need pour into rust-resistant grease into to the helmet, open the sealed lid on notes oil pipe and the outlet duct, then pour into rust-resistant grease into from notes oil pipe, when pouring into, rust-resistant grease can promote the closing plate, the spring shrink, the grease enters into in the cap body, air in the cap body is discharged from the outlet duct, after filling with rust-resistant grease, with sealed dress of covering on notes oil pipe and outlet duct, can accomplish sealedly, through setting up spring and closing plate, when the oiling, avoid rust-resistant grease to spill over from notes oil pipe and be infected with on operating personnel's hand or clothes, avoid causing rust-resistant grease's waste simultaneously.
Drawings
FIG. 1 is a schematic view of a split structure of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural diagram of the tension adjusting mechanism of the present invention;
FIG. 4 is a sectional view of the tension adjusting mechanism of the present invention showing a disassembled structure;
FIG. 5 is a schematic structural view of the coupling mechanism of the present invention;
FIG. 6 is a schematic view of a first perspective of the protective cap of the present invention;
FIG. 7 is a schematic view of a second perspective of the helmet of the present invention;
FIG. 8 is an enlarged view of the structure at A in FIG. 7 according to the present invention.
In the figure: 1-anchor head, 2-steel strand, 3-corrugated pipe, 4-tension adjusting mechanism, 401-threaded pipe, 402-limiting ring, 403-adjusting head, 404-clamping piece, 5-connecting mechanism, 501-backing plate, 502-threaded hole, 503-sealing groove, 6-protective cap, 601-cap body, 602-sealing strip, 603-oil filling pipe, 604-air outlet pipe, 605-connecting frame, 606-sliding shaft, 607-limiting block, 608-spring and 609-sealing plate.
Detailed Description
The utility model will be further described with reference to the accompanying drawings, but the scope of the utility model is not limited to the following.
As shown in fig. 1-8, a prestressed anchor cable with adjustable stress and deformation comprises an anchor head 1, wherein one side of the anchor head is provided with a steel strand 2, the outer surface of the steel strand 2 is sleeved with a corrugated pipe 3, one end of the steel strand 2, which is far away from the anchor head 1, is provided with a tension adjusting mechanism 4, the outer surface of the tension adjusting mechanism 4 is in threaded connection with a connecting mechanism 5, and one side of the connecting mechanism 5 is fixedly provided with a protective cap 6;
as shown in fig. 3 and 4, the tension adjusting mechanism 4 includes a threaded pipe 401, a limiting ring 402, an adjusting head 403 and two clamping pieces 404, wherein one end of the threaded pipe 401 is fixedly connected with the limiting ring 402, one end of the threaded pipe 401, which is far away from the limiting ring 402, is fixedly connected with the adjusting head 403, the middle part of the adjusting head 403 is provided with the two clamping pieces 404, the number of the clamping pieces 404 is two, and the two clamping pieces 404 are located at one end of the steel strand 2, which is far away from the anchor head 1;
as shown in fig. 6-8, the protective cap 6 comprises a cap body 601, a sealing strip 602, an oil filling pipe 603 and an air outlet pipe 604, the sealing structure comprises a connecting frame 605, a sliding shaft 606, a limiting block 607, a spring 608 and a sealing plate 609, a sealing strip 602 is fixedly connected to one side of the cap body 601, an oil injection pipe 603 is fixedly connected to one side of the cap body 601, an air outlet pipe 604 is fixedly connected to one side of the cap body 601, sealing covers are arranged at the tops of the oil injection pipe 603 and the air outlet pipe 604, anti-skidding stripes are arranged on the outer surface of the sealing cover, the connecting frame 605 is fixedly connected to the inside of the cap body 601, the sliding shaft 606 is slidably connected to the middle of the connecting frame 605, the limiting block 607 is fixedly connected to one end of the sliding shaft 606, the spring 608 is arranged on the outer surface of the sliding shaft 606, the sealing plate 609 is fixedly connected to one end of the sliding shaft 606 far away from the limiting block 607, the position of the sealing plate 609 corresponds to the position of the oil injection pipe 603, and the sealing plate 609 is made of rubber.
As a preferred embodiment of the present invention, as shown in fig. 5, the connecting mechanism 5 includes a base plate 501, a threaded hole 502 and a sealing groove 503, wherein one side of the base plate 501 is provided with a threaded hole, a cap 601 is fixedly mounted on one side of the base plate 501 through the threaded hole by using a bolt, a threaded pipe 401 is in threaded connection with the base plate 501 through the threaded hole 502, one side of the base plate 501 is provided with the sealing groove 503, and a sealing strip 602 is fitted with the sealing groove 503.
The working process of the utility model is as follows:
s1, after the anchor cable is used for a period of time, under the action of high stress, the clamping piece 404 and the section of the steel strand 2 clamped by the clamping piece inevitably generate certain displacement along the tension direction, when the tension of the anchor cable is reduced, the protective cap 6 is detached, and then the threaded pipe 401 is rotated through the adjusting head 403, so that the steel strand 2 can be tensioned, the tension of the anchor cable is ensured, and the stability of a rock body is ensured;
s2, after the loss of the rust-proof grease, when the rust-proof grease needs to be injected into the protective cap 6, the sealing covers on the oil injection pipe 603 and the air outlet pipe 604 are opened;
s3, injecting antirust grease from the oil injection pipe 603, wherein the antirust grease pushes the sealing plate 609, the spring 608 contracts, the grease enters the cap body 601, and air in the cap body 601 is exhausted from the air outlet pipe 604;
s4, after filling with rust-proof grease, with sealed lid dress on notes oil pipe 603 and outlet duct 604, can accomplish sealed, through setting up spring 608 and closing plate 609, when the oiling for rust-proof grease can't spill over from notes oil pipe 603, avoids rust-proof grease to spill over from notes oil pipe 603 and is infected with on operating personnel ' S hand or clothes, avoids causing rust-proof grease ' S waste simultaneously.
To sum up, when a user uses the anchor cable, after the anchor cable is used for a period of time and under the action of high stress, the clamping piece 404 and the section of the steel strand 2 clamped by the clamping piece must generate certain displacement along the tension direction, so that the tension of the anchor cable is reduced, at the moment, the protective cap 6 is detached, and then the threaded pipe 401 is rotated through the adjusting head 403, so that the steel strand 2 can be tensioned, the tension of the anchor cable is ensured, and the stability of a rock body is ensured; through setting up helmet 6, after rust-resistant grease loss, when need pour into rust-resistant grease into helmet 6, open the sealed lid on oiling pipe 603 and the outlet duct 604, then pour into rust-resistant grease into from oiling pipe 603, when pouring into, rust-resistant grease can promote closing plate 609, spring 608 shrink, the grease enters into cap body 601, air in the cap body 601 is discharged from outlet duct 604, after filling with rust-resistant grease, adorn sealed lid on oiling pipe 603 and outlet duct 604, can accomplish sealedly, through setting up spring 608 and closing plate 609, when the oiling, avoid rust-resistant grease to spill over from oiling pipe 603 and be infected with on operating personnel's hand or clothes, avoid causing rust-resistant grease's waste simultaneously.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a stress and deformation adjustable prestressed anchorage cable which characterized in that: the anchor head comprises an anchor head (1), wherein a steel strand (2) is arranged on one side of the anchor head, a corrugated pipe (3) is sleeved on the outer surface of the steel strand (2), a tension adjusting mechanism (4) is arranged at one end, far away from the anchor head (1), of the steel strand (2), the outer surface of the tension adjusting mechanism (4) is in threaded connection with a connecting mechanism (5), and a protective cap (6) is fixedly arranged on one side of the connecting mechanism (5);
the tension adjusting mechanism (4) comprises a threaded pipe (401), a limiting ring (402), an adjusting head (403) and a clamping piece (404), wherein the limiting ring (402) is fixedly connected to one end of the threaded pipe (401), the adjusting head (403) is fixedly connected to one end, away from the limiting ring (402), of the threaded pipe (401), and the clamping piece (404) is arranged in the middle of the adjusting head (403);
the protective cap (6) comprises a cap body (601), a sealing strip (602), an oil filling pipe (603), an air outlet pipe (604), a connecting frame (605), a sliding shaft (606), a limiting block (607), a spring (608) and a sealing plate (609), wherein the sealing strip (602) is fixedly connected to one side of the cap body (601), the oil filling pipe (603) is fixedly connected to one side of the cap body (601), the air outlet pipe (604) is fixedly connected to one side of the cap body (601), the connecting frame (605) is fixedly connected to the inside of the cap body (601), the sliding shaft (606) is slidably connected to the middle of the connecting frame (605), the limiting block (607) is fixedly connected to one end of the sliding shaft (606), the spring (608) is arranged on the outer surface of the sliding shaft (606), and the sealing plate (609) is fixedly connected to one end, far away from the limiting block (607), of the sliding shaft (606).
2. The pre-stressed anchor cable with adjustable stress and deformation as claimed in claim 1, wherein: the connecting mechanism (5) comprises a base plate (501), a threaded hole (502) and a sealing groove (503), the threaded hole (502) is formed in one side of the base plate (501), and the sealing groove (503) is formed in one side of the base plate (501).
3. The pre-stressed anchor cable with adjustable stress and deformation as claimed in claim 1, wherein: the position of the sealing plate (609) corresponds to the position of the oil filling pipe (603), and the sealing plate (609) is made of rubber.
4. The pre-stressed anchor cable with adjustable stress and deformation as claimed in claim 1, wherein: the number of the clamping pieces (404) is two, and the two clamping pieces (404) are located at one end, far away from the anchor head (1), of the steel strand (2).
5. The pre-stressed anchor cable with adjustable stress and deformation as claimed in claim 2, wherein: the threaded pipe (401) is in threaded connection with the backing plate (501) through a threaded hole (502).
6. The pre-stressed anchor cable with adjustable stress and deformation as claimed in claim 2, wherein: the sealing strip (602) is matched with the sealing groove (503).
7. The pre-stressed anchor cable with adjustable stress and deformation as claimed in claim 1, wherein: and sealing covers are arranged at the tops of the oil filling pipe (603) and the air outlet pipe (604).
8. The pre-stressed anchor cable with adjustable stress and deformation as claimed in claim 2, wherein: the cap body (601) is fixedly installed on one side of the cushion plate (501) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220283409.9U CN216809875U (en) | 2022-02-12 | 2022-02-12 | Stress and deformation adjustable prestressed anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220283409.9U CN216809875U (en) | 2022-02-12 | 2022-02-12 | Stress and deformation adjustable prestressed anchor cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216809875U true CN216809875U (en) | 2022-06-24 |
Family
ID=82042298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220283409.9U Expired - Fee Related CN216809875U (en) | 2022-02-12 | 2022-02-12 | Stress and deformation adjustable prestressed anchor cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216809875U (en) |
-
2022
- 2022-02-12 CN CN202220283409.9U patent/CN216809875U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220624 |