CN110331719B - Recoverable stock - Google Patents
Recoverable stock Download PDFInfo
- Publication number
- CN110331719B CN110331719B CN201910468576.3A CN201910468576A CN110331719B CN 110331719 B CN110331719 B CN 110331719B CN 201910468576 A CN201910468576 A CN 201910468576A CN 110331719 B CN110331719 B CN 110331719B
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- China
- Prior art keywords
- rod
- screw rod
- screw
- steel pipe
- outer steel
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 2
- 238000004873 anchoring Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 230000008093 supporting effect Effects 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The recyclable anchor rod comprises an outer steel pipe and a screw rod which are coaxially arranged, wherein the upper end and the lower end of the outer steel pipe are respectively provided with an end cover, the screw rod is freely movably supported on the end covers at the upper end and the lower end of the outer steel pipe, the end cover at the upper end of the outer steel pipe is provided with an adjusting nut matched with the screw rod, and the upper end and the lower end of the screw rod respectively extend out of the outer steel pipe; at least one pair of hinge parts are symmetrically arranged between the lower end of the screw rod and the end cover at the lower end along the same circumferential direction; the screw is provided with a hollow hole, a guide rod is arranged in the hollow hole, guide grooves communicated with the hollow hole are symmetrically arranged at two sides of the lower end of the screw corresponding to the hinge piece, sliding blocks sliding along the guide grooves are respectively arranged at two sides of the guide rod, stop plates are respectively arranged above the guide grooves at two sides of the screw, the inner ends of the stop plates are hinged to one side of the screw, one end of the connecting rod is hinged to the sliding blocks, and the other end of the connecting rod is hinged to the outer ends of the stop plates; the upper end of the guide rod extends out of the screw rod, and a limiting mechanism is arranged at the upper end of the screw rod. The invention can avoid loosening of the hinge piece and is beneficial to strengthening the anchoring effect of the anchor rod.
Description
Technical Field
The invention relates to the technical field of anchor rod recovery, in particular to a recoverable anchor rod.
Background
With the continuous promotion of the construction of the infrastructure in China, the building industry is rapidly developed. At present, the anchor bolt support technology is widely applied to urban foundation pit reinforcement, and plays a remarkable role in urban construction. However, the use of bolts in large numbers has led to an increasing number of bolts being buried underground in cities. When temporary support function fails, the traditional anchor rod cannot be recycled, is buried underground together with a built structure, occupies a large amount of underground space, forms underground garbage, causes underground environment pollution, and the left anchor rod becomes an underground obstacle of subsequent engineering, and meanwhile, waste of steel is caused because the anchor rod cannot be recycled. In addition, as people are increasingly conscious of property rights of underground spaces, the application range of conventional anchors is gradually limited due to the invasion of property rights of adjacent underground spaces.
Recoverable anchors are an inevitable product of anchor technology development. Some recoverable anchor rod technologies are already available in the market at present, and mainly comprise an inflatable recovery technology, a combined recovery technology and the like. However, the inflatable recovery has higher requirements on the material performance, so that the cost is high, and the practical construction and use processes of the combined recovery technology are complicated, so that the problem of difficult recovery caused by improper operation is solved.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art, and provides a recyclable anchor rod, which can be simply recycled, reduce the pollution to the underground environment and improve the application range of the anchor rod.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the recyclable anchor rod comprises an outer steel pipe and a screw rod which are coaxially arranged, wherein the upper end and the lower end of the outer steel pipe are respectively provided with an end cover, the screw rod is freely movably supported on the end covers at the upper end and the lower end of the outer steel pipe, the end cover at the upper end of the outer steel pipe is provided with an adjusting nut matched with the screw rod, and the upper end and the lower end of the screw rod respectively extend out of the outer steel pipe; at least one pair of hinge parts are symmetrically arranged between the lower end of the screw rod and the end cover at the lower end along the same circumferential direction, each hinge part comprises an upper pull rod and a lower pull rod, the lower end of the upper pull rod is hinged with the upper end of the lower pull rod, the upper end of the upper pull rod is hinged with the bottom surface of the end cover at the lower end, and the lower end of the lower pull rod is hinged with the lower end of the screw rod; the screw is provided with a hollow hole, a guide rod is arranged in the hollow hole, guide grooves communicated with the hollow hole are symmetrically arranged at two sides of the lower end of the screw corresponding to the hinge piece, sliding blocks sliding along the guide grooves are respectively arranged at two sides of the guide rod, stop plates are respectively arranged above the guide grooves at two sides of the screw, the inner ends of the stop plates are hinged to one side of the screw, a connecting rod is arranged between the sliding blocks and the stop plates, one end of the connecting rod is hinged to the sliding blocks, and the other end of the connecting rod is hinged to the outer ends of the stop plates; the upper end of the guide rod extends out of the screw rod, and a limiting mechanism capable of limiting the relative movement between the guide rod and the screw rod is arranged at the upper end of the screw rod.
According to the invention, when the anchor rod is used, the diameter of the drilled anchor hole is slightly larger than that of the outer steel pipe, hole cleaning is carried out after hole cleaning, the anchor rod with the stop plate, the upper pull rod and the lower pull rod in the furled state is inserted into the anchor hole after hole cleaning is finished, then a spanner or other mechanical devices are used for rotating an adjusting nut to enable the screw rod to move outwards, at the moment, the lower end of the upper pull rod and the upper end of the lower pull rod are gradually spread by extrusion until the axis of the upper pull rod forms a larger angle with the axis of the outer steel pipe, and the rotation of the adjusting nut is stopped; then loosening the limit mechanism at the upper end of the screw rod, pulling the guide rod to move outwards, enabling the stop plate to be in an unfolding state through the sliding block until the outer end of the stop plate is propped against the inner side of the hinge piece, limiting and fixing the unfolding degree of the hinge piece by the stop plate, so that the hinge piece can be prevented from loosening, at the moment, locking the limit mechanism to limit the relative movement between the guide rod and the screw rod, and finally locking the adjusting nut and the outer steel pipe or the screw rod by using an external connecting piece, anchoring the anchor hole and the outer steel pipe by using a proper amount of suspicious soil, and at the moment, enabling the whole anchor rod to be in the unfolding state, thus the supporting effect can be generated. When the anchor rod is required to be recovered, firstly loosening the suspicious soil between the anchor hole and the outer steel pipe, then loosening the locking and limiting mechanism between the adjusting nut and the outer steel pipe or the screw rod in sequence, then inwards moving the guide rod to shrink the stop plate, and then rotating the adjusting nut to enable the screw rod to inwards move so that the upper pull rod and the lower pull rod are in a furled state, so that the anchor rod can be taken out for recycling.
In summary, the invention utilizes the cooperation of the screw and the adjusting nut to switch the upper pull rod and the lower pull rod between the contracted state and the expanded state, thereby realizing the primary anchoring and supporting effect; and then the guide rod is used for enabling the stop plate to be switched between the contracted state and the expanded state, and further limiting and fixing are carried out on the hinge parts formed by the upper pull rod and the lower pull rod, so that the loosening of the hinge parts is avoided, and the anchor rod anchoring effect is enhanced.
As an improvement of the invention, the limiting mechanism comprises a lock nut, an external thread is arranged at the upper end of the guide rod, a stage hole with a small upper part and a large lower part is arranged in the lock nut, the large end of the lock nut is in threaded connection with the upper end of the screw rod, and the small end of the lock nut is in threaded connection with the upper end of the guide rod.
As an improvement of the invention, the lower end of the screw is provided with a tip.
As an improvement of the invention, the adjusting nut and the upper end cover are provided with coaxial threaded holes, and the threaded holes are provided with locking bolts for connecting the adjusting nut and the upper end cover.
Compared with the prior art, the invention has the following advantages:
the invention utilizes the cooperation of the screw rod and the adjusting nut to switch the upper pull rod and the lower pull rod between the contracted state and the expanded state, thereby realizing the primary anchoring supporting effect;
and then the guide rod is used for enabling the stop plate to be switched between the contracted state and the expanded state, and further limiting and fixing are carried out on the hinge parts formed by the upper pull rod and the lower pull rod, so that the loosening of the hinge parts is avoided, and the anchor rod anchoring effect is enhanced.
Drawings
FIG. 1 is a schematic view of a recoverable anchor of the present invention;
fig. 2 is a partial enlarged view of fig. 1.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Examples
Referring to fig. 1 and 2, a recoverable anchor rod comprises an outer steel tube 10 and a screw rod 20 which are coaxially arranged, wherein the upper end and the lower end of the outer steel tube 10 are respectively provided with an end cover 11, the screw rod 20 is freely movably supported on the end covers at the upper end and the lower end of the outer steel tube 10, an adjusting nut 30 matched with the screw rod 20 is arranged at the end cover at the upper end of the outer steel tube 10, and the upper end and the lower end of the screw rod 20 respectively extend out of the outer steel tube 10;
at least one pair of hinge parts 40 are symmetrically arranged between the lower end of the screw rod 20 and the lower end cover along the same circumferential direction, each hinge part 40 comprises an upper pull rod 41 and a lower pull rod 42, the lower end of the upper pull rod 41 is hinged with the upper end of the lower pull rod 42, the upper end of the upper pull rod 41 is hinged with the bottom surface of the lower end cover, and the lower end of the lower pull rod 42 is hinged with the lower end of the screw rod 20;
the screw rod 20 is provided with a hollow hole 21, a guide rod 50 is arranged in the hollow hole 21, guide grooves 22 communicated with the hollow hole 21 are symmetrically arranged at the lower end of the screw rod 20 at the two sides of the position corresponding to the hinge piece 40, sliding blocks 51 sliding along the guide grooves 22 are respectively arranged at the two sides of the guide rod 50, stop plates 60 are respectively arranged at the two sides of the screw rod 20 above the guide grooves 22, the inner ends of the stop plates 60 are hinged to one side of the screw rod 20, a connecting rod 70 is arranged between the sliding blocks 51 and the stop plates 60, one end of the connecting rod 70 is hinged to the sliding blocks 51, and the other end of the connecting rod 70 is hinged to the outer ends of the stop plates 60;
the upper end of the guide rod 50 extends out of the screw rod 20, and a limiting mechanism capable of limiting the relative movement between the guide rod and the screw rod is arranged at the upper end of the screw rod 20.
According to the invention, when the anchor rod is used, the diameter of the drilled anchor hole is slightly larger than that of the outer steel pipe, hole cleaning is carried out after hole cleaning, the anchor rod with the stop plate, the upper pull rod and the lower pull rod in the furled state is inserted into the anchor hole after hole cleaning is finished, then a spanner or other mechanical devices are used for rotating an adjusting nut to enable the screw rod to move outwards, at the moment, the lower end of the upper pull rod and the upper end of the lower pull rod are gradually spread by extrusion until the axis of the upper pull rod forms a larger angle with the axis of the outer steel pipe, and the rotation of the adjusting nut is stopped; then loosening the limit mechanism at the upper end of the screw rod, pulling the guide rod to move outwards, enabling the stop plate to be in an unfolding state through the sliding block until the outer end of the stop plate is propped against the inner side of the hinge piece, limiting and fixing the unfolding degree of the hinge piece by the stop plate, so that the hinge piece can be prevented from loosening, at the moment, locking the limit mechanism to limit the relative movement between the guide rod and the screw rod, and finally locking the adjusting nut and the outer steel pipe or the screw rod by using an external connecting piece, anchoring the anchor hole and the outer steel pipe by using a proper amount of suspicious soil, and at the moment, enabling the whole anchor rod to be in the unfolding state, thus the supporting effect can be generated. When the anchor rod is required to be recovered, firstly loosening the suspicious soil between the anchor hole and the outer steel pipe, then loosening the locking and limiting mechanism between the adjusting nut and the outer steel pipe or the screw rod in sequence, then inwards moving the guide rod to shrink the stop plate, and then rotating the adjusting nut to enable the screw rod to inwards move so that the upper pull rod and the lower pull rod are in a furled state, so that the anchor rod can be taken out for recycling.
In summary, the invention utilizes the cooperation of the screw and the adjusting nut to switch the upper pull rod and the lower pull rod between the contracted state and the expanded state, thereby realizing the primary anchoring and supporting effect; and then the guide rod is used for enabling the stop plate to be switched between the contracted state and the expanded state, and further limiting and fixing are carried out on the hinge parts formed by the upper pull rod and the lower pull rod, so that the loosening of the hinge parts is avoided, and the anchor rod anchoring effect is enhanced.
In this embodiment, the limiting mechanism includes a lock nut 80, an external thread is disposed at the upper end of the guide rod 50, a stage hole with a smaller top and a larger bottom is disposed in the lock nut 80, a large end of the lock nut 80 is in threaded connection with the upper end of the screw rod 20, and a small end of the lock nut 80 is in threaded connection with the upper end of the guide rod 50. It is easy to think that the limiting mechanism can also adopt other structural modes, for example, a mode of matching a positioning hole with a positioning pin, a plurality of coaxial positioning holes are axially arranged at the upper end of the guide rod and the upper end of the screw rod, and one positioning hole is inserted with the positioning pin to realize limiting.
In this embodiment, the lower end of the screw 20 is provided with a tip 23. The lower end of the screw rod is inserted into the bottom of the anchor hole in a tip mode more easily, so that the anchor rod is favorably installed.
In this embodiment, coaxial threaded holes are provided on the adjusting nut 30 and the upper end cap, and a locking bolt 90 for connecting the adjusting nut 30 and the upper end cap is provided on the threaded holes. When the whole anchor rod is in the unfolded state, the locking bolt can be connected to the threaded hole, and the adjusting nut is locked with the screw rod.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (4)
1. The recyclable anchor rod comprises an outer steel pipe and a screw rod which are coaxially arranged, wherein the upper end and the lower end of the outer steel pipe are respectively provided with an end cover, the screw rod is freely movably supported on the end covers at the upper end and the lower end of the outer steel pipe, the end cover at the upper end of the outer steel pipe is provided with an adjusting nut matched with the screw rod, and the upper end and the lower end of the screw rod respectively extend out of the outer steel pipe; at least one pair of hinge parts are symmetrically arranged between the lower end of the screw rod and the end cover at the lower end along the same circumferential direction, each hinge part comprises an upper pull rod and a lower pull rod, the lower end of the upper pull rod is hinged with the upper end of the lower pull rod, the upper end of the upper pull rod is hinged with the bottom surface of the end cover at the lower end, and the lower end of the lower pull rod is hinged with the lower end of the screw rod; the method is characterized in that: the screw is provided with a hollow hole, a guide rod is arranged in the hollow hole, guide grooves communicated with the hollow hole are symmetrically arranged at two sides of the lower end of the screw corresponding to the hinge piece, sliding blocks sliding along the guide grooves are respectively arranged at two sides of the guide rod, stop plates are respectively arranged above the guide grooves at two sides of the screw, the inner ends of the stop plates are hinged to one side of the screw, a connecting rod is arranged between the sliding blocks and the stop plates, one end of the connecting rod is hinged to the sliding blocks, and the other end of the connecting rod is hinged to the outer ends of the stop plates; the upper end of the guide rod extends out of the screw rod, and a limiting mechanism capable of limiting the relative movement between the guide rod and the screw rod is arranged at the upper end of the screw rod.
2. The recoverable anchor as recited in claim 1, wherein: the limiting mechanism comprises a lock nut, an external thread is arranged at the upper end of the guide rod, a stage hole with a small upper part and a large lower part is arranged in the lock nut, the large end of the lock nut is in threaded connection with the upper end of the screw rod, and the small end of the lock nut is in threaded connection with the upper end of the guide rod.
3. The recoverable anchor as recited in claim 1, wherein: the lower end of the screw rod is provided with a tip.
4. The recoverable anchor as recited in claim 1, wherein: coaxial threaded holes are formed in the adjusting nut and the upper end cover, and locking bolts for connecting the adjusting nut with the upper end cover are arranged on the threaded holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468576.3A CN110331719B (en) | 2019-05-31 | 2019-05-31 | Recoverable stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468576.3A CN110331719B (en) | 2019-05-31 | 2019-05-31 | Recoverable stock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110331719A CN110331719A (en) | 2019-10-15 |
| CN110331719B true CN110331719B (en) | 2024-01-23 |
Family
ID=68140679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910468576.3A Active CN110331719B (en) | 2019-05-31 | 2019-05-31 | Recoverable stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110331719B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237543A (en) * | 2020-01-10 | 2020-06-05 | 钱迪迪 | Municipal administration pipeline that suitability is strong supports butt-joint structural |
| CN112523209A (en) * | 2020-11-25 | 2021-03-19 | 中国建筑第五工程局有限公司 | Anchoring connector for anchor rod |
| CN112962635B (en) * | 2021-02-19 | 2023-01-10 | 中咨数据有限公司 | Anchoring device for preventing landslide geological disasters |
| CN113217062A (en) * | 2021-06-08 | 2021-08-06 | 辽宁工程技术大学 | Prestressed anchor rod with telescopic arm and use method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002121735A (en) * | 2000-10-13 | 2002-04-26 | Yasuhiro Fujita | Method for constructing underground laid parachute anchor foundation for soft ground |
| KR200418377Y1 (en) * | 2006-03-07 | 2006-06-12 | 주식회사 티에스 | The open and shut controller for an umbrella |
| CN101469541A (en) * | 2008-05-14 | 2009-07-01 | 烟台大学 | Recoverable anchor rod |
| CN206433931U (en) * | 2017-01-18 | 2017-08-25 | 绍兴市中圣伞业有限公司 | A kind of novel high-strength square pipe courtyard umbrella |
| CN210684679U (en) * | 2019-05-31 | 2020-06-05 | 广东工业大学 | Recoverable anchor rod |
-
2019
- 2019-05-31 CN CN201910468576.3A patent/CN110331719B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002121735A (en) * | 2000-10-13 | 2002-04-26 | Yasuhiro Fujita | Method for constructing underground laid parachute anchor foundation for soft ground |
| KR200418377Y1 (en) * | 2006-03-07 | 2006-06-12 | 주식회사 티에스 | The open and shut controller for an umbrella |
| CN101469541A (en) * | 2008-05-14 | 2009-07-01 | 烟台大学 | Recoverable anchor rod |
| CN206433931U (en) * | 2017-01-18 | 2017-08-25 | 绍兴市中圣伞业有限公司 | A kind of novel high-strength square pipe courtyard umbrella |
| CN210684679U (en) * | 2019-05-31 | 2020-06-05 | 广东工业大学 | Recoverable anchor rod |
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| Publication number | Publication date |
|---|---|
| CN110331719A (en) | 2019-10-15 |
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