CN210684679U - Recoverable anchor rod - Google Patents
Recoverable anchor rod Download PDFInfo
- Publication number
- CN210684679U CN210684679U CN201920822687.5U CN201920822687U CN210684679U CN 210684679 U CN210684679 U CN 210684679U CN 201920822687 U CN201920822687 U CN 201920822687U CN 210684679 U CN210684679 U CN 210684679U
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- Prior art keywords
- screw rod
- rod
- hinged
- steel pipe
- outer steel
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- Withdrawn - After Issue
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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 15
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 4
- 238000005728 strengthening Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 6
- 238000004873 anchoring Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000009434 installation Methods 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
- 230000007480 spreading Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
A recoverable 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, an adjusting nut matched with the screw rod is arranged at the end cover at the upper end of the outer steel pipe, 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 hinged parts is symmetrically arranged between the lower end of the screw rod and the lower end cover along the same circumferential direction; a hollow hole is formed in the screw rod, a guide rod is arranged in the hollow hole, guide grooves communicated with the hollow hole are symmetrically formed in the two sides of the lower end of the screw rod, which correspond to the hinged parts, of the screw rod, sliding blocks sliding along the guide grooves are respectively arranged on the two sides of the guide rod, stop plates are respectively arranged above the guide grooves on the two sides of the screw rod, the inner ends of the stop plates are hinged to one side of the screw rod, one end of a connecting rod is hinged to the sliding blocks, and the other; the upper end of the guide rod extends out of the screw rod, and the upper end of the screw rod is provided with a limiting mechanism. The utility model discloses can avoid the articulated elements not hard up, be favorable to strengthening stock anchor effect.
Description
Technical Field
The utility model relates to a technical field, concretely relates to recoverable stock are retrieved to stock.
Background
With the continuous promotion of infrastructure construction in China, the construction industry is rapidly developed. At present, the anchor rod supporting technology is widely applied to urban foundation pit reinforcement, and has remarkable benefits in urban construction. The extensive use of rock bolts has however led to an increasing number of rock bolts being buried in urban grounds. When the temporary support function is invalid, the traditional anchor rod cannot be recovered and is buried underground together with the built structure, a large amount of underground space is occupied, underground garbage is formed, underground environment pollution is caused, the remained anchor rod becomes an underground obstacle of subsequent engineering, and steel waste is caused because the anchor rod cannot be recovered. In addition, as people's interest in property rights of underground spaces is increased, the application range of the conventional anchor rod is gradually limited due to infringement of property rights of adjacent underground spaces.
Recoverable bolts are a necessary product of the development of bolt technology. Some recoverable anchor rod technologies are already available in the market, and mainly include an inflatable recovery technology, a combined recovery technology and the like. But inflatable recovery has higher requirements on material performance, causes the cost to be high, and the combined recovery technology is more tedious in actual construction and use process, and is easy to cause the problem of difficult recovery due to improper operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art's shortcoming and not enough, provide a recoverable stock, can retrieve the stock portably, reduce the pollution to the underground environment, improve the range of application of stock.
In order to achieve the above object, the utility model adopts the following technical scheme:
a recoverable 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, an adjusting nut matched with the screw rod is arranged at the end cover at the upper end of the outer steel pipe, 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 hinged pieces is symmetrically arranged between the lower end of the screw rod and the lower end cover along the same circumferential direction, each hinged piece comprises an upper pull rod and a lower pull rod, the lower end of each upper pull rod is hinged with the upper end of each lower pull rod, the upper end of each upper pull rod is hinged with the bottom surface of the lower end cover, and the lower end of each lower pull rod is hinged with the lower end of the screw rod; a hollow hole is formed in the screw rod, a guide rod is arranged in the hollow hole, guide grooves communicated with the hollow hole are symmetrically formed in the two sides of the lower end of the screw rod, which correspond to the hinged parts, of the screw rod, sliding blocks sliding along the guide grooves are respectively arranged on the two sides of the guide rod, stop plates are respectively arranged above the guide grooves on the two sides of the screw rod, the inner ends of the stop plates are hinged to one side of the screw rod, a connecting rod is arranged between each sliding block and each stop plate, one end of each connecting rod is hinged to the; the upper end of the guide rod extends out of the screw rod, and the upper end of the screw rod is provided with a limiting mechanism capable of limiting the relative movement between the guide rod and the screw rod.
According to the above, the utility model discloses when the anchor rod is used, the anchor hole diameter that drills should be slightly bigger than the diameter of outer steel pipe, clear hole after the drilling, clear hole after finishing, insert the stock that check plate, upper tie rod and lower link are in the folded condition in the anchor hole, then rotate adjusting nut with spanner or other mechanical device and make the screw rod move outwards, the lower extreme of upper tie rod and the upper end of lower link are propped open gradually by the extrusion this moment, when the axis of upper tie rod and the axis of outer steel pipe become great angle, stop to rotate adjusting nut promptly; then, a limiting mechanism at the upper end of the screw rod is loosened, the guide rod is pulled to move outwards, the guide rod enables the stop plate to be in an unfolded state through the sliding block until the outer end of the stop plate abuts against the inner side of the hinged piece, the stop plate limits and fixes the unfolding degree of the hinged piece to avoid the hinged piece from loosening, the limiting mechanism is locked to limit relative movement between the guide rod and the screw rod at the moment, finally, an external connecting piece is used for locking the adjusting nut and the outer steel pipe or the screw rod, an appropriate amount of mixed soil can be used for anchoring the anchor hole and the outer steel pipe, and at the moment, the whole anchor rod is in. When the anchor rod needs to be recovered, the mixed soil between the anchor hole and the outer steel pipe is firstly loosened, then the adjusting nut and the outer steel pipe or the locking mechanism and the limiting mechanism between the screw rod are sequentially loosened, then the guide rod is moved inwards to shrink the stop plate, the adjusting nut is rotated again to enable the screw rod to move inwards to enable the upper pull rod and the lower pull rod to be in a furled state, and the anchor rod can be taken out and recycled.
In summary, the utility model utilizes the matching of the screw rod and the adjusting nut to switch the upper pull rod and the lower pull rod between the contraction state and the expansion state, thereby realizing the preliminary anchoring and supporting function; then utilize the guide arm to make the check plate switch between shrink and expansion state, further carry out spacing fixed to the articulated elements that upper pull rod and lower pull rod are constituteed, and avoid the articulated elements not hard up, be favorable to strengthening the stock anchor effect.
As an improvement of the utility model, stop gear includes lock nut, and the guide arm upper end is equipped with the external screw thread, is equipped with big end down's stage hole in the lock nut, lock nut's main aspects and screw rod upper end threaded connection, lock nut's tip and guide arm upper end threaded connection.
As an improvement of the utility model, the screw rod lower extreme is equipped with most advanced.
As an improvement of the utility model, be equipped with coaxial screw hole on adjusting nut and the upper end cover, be equipped with the locking bolt that is connected adjusting nut and upper end cover on the screw hole.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model utilizes the matching of the screw rod and the adjusting nut to switch the upper pull rod and the lower pull rod between the contraction state and the expansion state, thereby realizing the preliminary anchoring and supporting function;
then utilize the guide arm to make the check plate switch between shrink and expansion state, further carry out spacing fixed to the articulated elements that upper pull rod and lower pull rod are constituteed, and avoid the articulated elements not hard up, be favorable to strengthening the stock anchor effect.
Drawings
Fig. 1 is a schematic view of the recyclable anchor rod of the present invention;
fig. 2 is a partially enlarged view of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "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 relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Examples
Referring to fig. 1 and 2, a recoverable anchor rod includes an outer steel tube 10 and a screw rod 20 coaxially disposed, wherein the outer steel tube 10 is provided at upper and lower ends thereof with end caps 11, the screw rod 20 is freely movably supported on the end caps at the upper and lower ends of the outer steel tube 10, an adjusting nut 30 engaged with the screw rod 20 is disposed at the end cap at the upper end of the outer steel tube 10, and the upper and lower ends of the screw rod 20 extend out of the outer steel tube 10;
at least one pair of hinge pieces 40 are symmetrically arranged between the lower end of the screw rod 20 and the end cover of the lower end along the same circumferential direction, each hinge piece 40 comprises an upper pull rod 41 and a lower pull rod 42, the lower end of each upper pull rod 41 is hinged with the upper end of each lower pull rod 42, the upper end of each upper pull rod 41 is hinged with the bottom surface of the end cover of the lower end, and the lower end of each lower pull rod 42 is hinged with the lower end of the screw rod 20;
a hollow hole 21 is formed in the screw rod 20, a guide rod 50 is arranged in the hollow hole 21, guide grooves 22 communicated with the hollow hole 21 are symmetrically formed in the two sides of the lower end of the screw rod 20 at the position corresponding to the hinged piece 40, sliding blocks 51 sliding along the guide grooves 22 are respectively arranged on the two sides of the guide rod 50, stop plates 60 are respectively arranged above the guide grooves 22 on the two sides of the screw rod 20, 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 each sliding block 51 and each stop plate 60, one end of each connecting rod 70 is hinged to the corresponding sliding block 51, and the;
the upper end of the guide rod 50 extends out of the screw rod 20, and the upper end of the screw rod 20 is provided with a limiting mechanism which can limit the relative movement between the guide rod and the screw rod.
According to the above, the utility model discloses when the anchor rod is used, the anchor hole diameter that drills should be slightly bigger than the diameter of outer steel pipe, clear hole after the drilling, clear hole after finishing, insert the stock that check plate, upper tie rod and lower link are in the folded condition in the anchor hole, then rotate adjusting nut with spanner or other mechanical device and make the screw rod move outwards, the lower extreme of upper tie rod and the upper end of lower link are propped open gradually by the extrusion this moment, when the axis of upper tie rod and the axis of outer steel pipe become great angle, stop to rotate adjusting nut promptly; then, a limiting mechanism at the upper end of the screw rod is loosened, the guide rod is pulled to move outwards, the guide rod enables the stop plate to be in an unfolded state through the sliding block until the outer end of the stop plate abuts against the inner side of the hinged piece, the stop plate limits and fixes the unfolding degree of the hinged piece to avoid the hinged piece from loosening, the limiting mechanism is locked to limit relative movement between the guide rod and the screw rod at the moment, finally, an external connecting piece is used for locking the adjusting nut and the outer steel pipe or the screw rod, an appropriate amount of mixed soil can be used for anchoring the anchor hole and the outer steel pipe, and at the moment, the whole anchor rod is in. When the anchor rod needs to be recovered, the mixed soil between the anchor hole and the outer steel pipe is firstly loosened, then the adjusting nut and the outer steel pipe or the locking mechanism and the limiting mechanism between the screw rod are sequentially loosened, then the guide rod is moved inwards to shrink the stop plate, the adjusting nut is rotated again to enable the screw rod to move inwards to enable the upper pull rod and the lower pull rod to be in a furled state, and the anchor rod can be taken out and recycled.
In summary, the utility model utilizes the matching of the screw rod and the adjusting nut to switch the upper pull rod and the lower pull rod between the contraction state and the expansion state, thereby realizing the preliminary anchoring and supporting function; then utilize the guide arm to make the check plate switch between shrink and expansion state, further carry out spacing fixed to the articulated elements that upper pull rod and lower pull rod are constituteed, and avoid the articulated elements not hard up, be favorable to strengthening the stock anchor effect.
In this embodiment, the limiting mechanism includes a locking nut 80, the upper end of the guide rod 50 is provided with an external thread, a stepped hole with a small upper end and a large lower end is arranged in the locking nut 80, the large end of the locking nut 80 is in threaded connection with the upper end of the screw rod 20, and the small end of the locking 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 locating hole and a locating pin matching mode, a plurality of coaxial locating holes are axially arranged at the upper end of the guide rod and the upper end of the screw rod, and the locating pin is inserted into the locating hole to realize the limiting.
In this embodiment, the screw 20 is provided with a tip 23 at its lower end. The lower end of the screw rod is inserted into the bottom of the anchor hole more easily in a tip mode, and smooth installation of the anchor rod is facilitated.
In this embodiment, the adjusting nut 30 and the upper end cap are provided with coaxial threaded holes, and the threaded holes are provided with locking bolts 90 for connecting the adjusting nut 30 and the upper end cap. When the whole anchor rod is in a spreading state, the locking bolt can be connected to the threaded hole, and the adjusting nut is locked with the threaded rod.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (4)
1. A recoverable 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, an adjusting nut matched with the screw rod is arranged at the end cover at the upper end of the outer steel pipe, 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 hinged pieces is symmetrically arranged between the lower end of the screw rod and the lower end cover along the same circumferential direction, each hinged piece comprises an upper pull rod and a lower pull rod, the lower end of each upper pull rod is hinged with the upper end of each lower pull rod, the upper end of each upper pull rod is hinged with the bottom surface of the lower end cover, and the lower end of each lower pull rod is hinged with the lower end of the screw rod; the method is characterized in that: a hollow hole is formed in the screw rod, a guide rod is arranged in the hollow hole, guide grooves communicated with the hollow hole are symmetrically formed in the two sides of the lower end of the screw rod, which correspond to the hinged parts, of the screw rod, sliding blocks sliding along the guide grooves are respectively arranged on the two sides of the guide rod, stop plates are respectively arranged above the guide grooves on the two sides of the screw rod, the inner ends of the stop plates are hinged to one side of the screw rod, a connecting rod is arranged between each sliding block and each stop plate, one end of each connecting rod is hinged to the; the upper end of the guide rod extends out of the screw rod, and the upper end of the screw rod is provided with a limiting mechanism capable of limiting the relative movement between the guide rod and the screw rod.
2. The retrievable anchor rod of claim 1, wherein: the limiting mechanism comprises a locking nut, external threads are arranged at the upper end of the guide rod, a step hole which is small in upper part and large in lower part is formed in the locking nut, the large end of the locking nut is in threaded connection with the upper end of the screw rod, and the small end of the locking nut is in threaded connection with the upper end of the guide rod.
3. The retrievable anchor rod of claim 1, wherein: the lower end of the screw rod is provided with a tip.
4. The retrievable anchor rod of claim 1, wherein: and 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920822687.5U CN210684679U (en) | 2019-05-31 | 2019-05-31 | Recoverable anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920822687.5U CN210684679U (en) | 2019-05-31 | 2019-05-31 | Recoverable anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210684679U true CN210684679U (en) | 2020-06-05 |
Family
ID=70895710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920822687.5U Withdrawn - After Issue CN210684679U (en) | 2019-05-31 | 2019-05-31 | Recoverable anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210684679U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331719A (en) * | 2019-05-31 | 2019-10-15 | 广东工业大学 | A kind of recoverable anchor rod |
-
2019
- 2019-05-31 CN CN201920822687.5U patent/CN210684679U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331719A (en) * | 2019-05-31 | 2019-10-15 | 广东工业大学 | A kind of recoverable anchor rod |
| CN110331719B (en) * | 2019-05-31 | 2024-01-23 | 广东工业大学 | Recoverable stock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200605 Effective date of abandoning: 20240123 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200605 Effective date of abandoning: 20240123 |