CN112538853A - Protective cover for recovering anchor rod external unloading device and construction method thereof - Google Patents
Protective cover for recovering anchor rod external unloading device and construction method thereof Download PDFInfo
- Publication number
- CN112538853A CN112538853A CN202011447840.4A CN202011447840A CN112538853A CN 112538853 A CN112538853 A CN 112538853A CN 202011447840 A CN202011447840 A CN 202011447840A CN 112538853 A CN112538853 A CN 112538853A
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- cover
- wall
- unloading device
- protective cover
- anchor rod
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- 230000001681 protective effect Effects 0.000 title claims abstract description 54
- 238000010276 construction Methods 0.000 title claims description 9
- 238000011084 recovery Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Images
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
-
- 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
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
- E02D5/765—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor removable
Abstract
The invention relates to a protective cover for an external unloading device of a recovery anchor rod, which comprises a cover wall, cover lugs, a wall groove and a cover bottom, wherein the cover wall is a circular steel cylinder, the top of the cover wall is provided with the sealed cover bottom, the bottom of the cover wall is symmetrically provided with the open cover groove, the cover lugs are symmetrically arranged on the cover wall right above the cover groove, the cover lugs are internally provided with wire through holes, and the protective cover can be fixed with the external unloading device of the recovery anchor rod through a screw rod, a fixing nut and a nut to finish the installation, unloading and unlocking of the protective cover. The device ensures the personal safety of the unloading personnel, and has the advantages of convenient use, simple structure, low manufacturing cost and strong practicability.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a protective cover for recovering an unloading device outside an anchor rod and a construction method thereof.
Background
The support of the building foundation pit is a supporting, blocking, reinforcing and protecting measure adopted for the side wall of the foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground structure and the surrounding environment of the foundation pit. In recent years, more and more detachable recovery bolts or bolts have been used, for example, in chinese patent application CN 105544535B, entitled "recovery anchor line unloading device" and the like, discloses an external unloading device for recovering anchor cables, which comprises a bottom plate, an inner cone platform split piece, an outer cone sleeve, a clamping piece and a screw rod, the inner cone platform split piece is externally matched with an outer cone sleeve, the periphery of the outer cone sleeve is locked on the bottom plate through at least two screw assemblies and an anchor cable is locked through the inner cone platform split piece and the clamping piece in a resultant force manner, wherein the inner cone platform split piece is provided with at least four conical through holes along the axial direction, each conical through hole is provided with a group of clamping pieces and forms a clamping hole penetrating through the anchor cable, each anchor cable penetrates through the bottom plate and extends into the rock soil, when the anchor cable is unloaded, loosening the screw rod assembly, and jacking the outer taper sleeve outwards to separate the split parts of the inner taper table, so that the clamping pieces of each group are separated and lose clamping force to finish the unloading of the tensile force of the anchor cable; the inner cone platform split piece is cut along the conical through hole to form a left split body, a middle split body and a right split body, each group of clamping pieces are restrained by the left split body, the middle split body and the right split body under the matching of the outer cone sleeve, each group of clamping pieces consists of two clamping parts, the outer sides of the two clamping parts are conical, and friction teeth are arranged on the inner sides of the two clamping parts. The screw rod subassembly includes screw rod and complex nut, and screw rod one end is fixed on the bottom plate, and the other end passes outer taper sleeve and is locked firmly by the nut, outer taper sleeve week side symmetry is equipped with two ear seats, and the ear seat has the through-hole to run through for the screw rod, and is equipped with the spring pad below the nut on the screw rod.
When the cable is disassembled, the outer taper sleeve is outwards jacked up through the loosening screw rod assembly, so that the inner taper table split part is separated, the clamping piece is separated from the cable, and the tensile force of the cable is unloaded. However, the anchor rod generates a large resilience force in the process of disassembly, and the clamping piece flies out at a high speed, so that equipment damage or casualties are caused.
In view of the above, the present invention provides a protective cover for recovering an external unloading device of an anchor rod, so as to solve the above problems.
Disclosure of Invention
The invention aims at potential safety hazards in the process of disassembling a recyclable anchor rod, aims to provide a protective cover of a recyclable anchor rod external unloading device, which is simple in structure, convenient to install and disassemble, safe and reliable, and aims to provide a construction method of the protective cover.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a safety cover for retrieving outer uninstallation device of stock, includes cover wall, cover ear, wall groove and cover end, the cover wall is the tube-shape, the cover wall is provided with the cover end along axial one end, the cover wall is equipped with the cover groove along axial other end symmetry, and the cover groove is followed the inner wall of cover wall runs through to the outer wall, the outer wall symmetry of cover wall is provided with the cover ear, and the cover ear sets up directly over the cover groove, be provided with in the cover ear and retrieve the outer uninstallation device's of stock screw rod complex threading hole.
As a preferred mode of the invention, the external unloading device for the recycling anchor rod comprises a bottom plate, an inner frustum component, an outer cone sleeve, clamping pieces and the screw rods, wherein the inner frustum component is arranged in the outer cone sleeve, the periphery of the outer cone sleeve is locked on the bottom plate through two screw rods and locked by the inner frustum component and the clamping pieces in a resultant force manner, the inner frustum component is axially provided with a conical through hole, the conical through hole is provided with a group of clamping pieces and forms a clamping hole for clamping the anchor rod, the inner frustum component is cut along the conical through hole to form an inner frustum left component, an inner frustum middle component and an inner frustum right component, each clamping piece group is restrained by the inner frustum left component, the inner frustum middle component and the inner frustum right component under the matching of the outer cone sleeve, two lug seats are symmetrically arranged on the periphery of the outer cone sleeve, through holes for the screw rods to penetrate through are arranged on the lug seats, and nuts are arranged on the screw rods, the nut is pressed against the ear seat.
In a preferred aspect of the present invention, the inner diameter of the cover wall is 6 to 20mm larger than the outer diameter of the outer cone, and the outer diameter of the cover wall is 40 to 100mm smaller than the distance between the two screws.
In a preferred aspect of the present invention, the width of the cover groove gradually increases from the inner wall to the outer wall of the cover wall, and the minimum width of the cover groove is 6 to 20mm greater than the width of the ear piece.
In a preferred embodiment of the present invention, the height of the cover groove is 2 to 10mm smaller than the height of the outer taper sleeve.
As a preferable mode of the present invention, the distance from the top surface of the cover lug to the bottom of the cover wall is less than the height of the screw rod by 40 to 60 mm; the distance between the bottom surface of the cover lug and the top surface of the nut is 50-150 mm.
In a preferred embodiment of the present invention, the inner diameter of the threading hole is 4 to 10mm larger than the outer diameter of the screw.
In a preferred embodiment of the present invention, the length of the cover wall in the axial direction is 200 to 500 mm.
A construction method for recovering a protective cover of an anchor rod external unloading device comprises the following steps:
(1) preparation work: removing sundries on a screw rod of the unloading device outside the anchor rod to be dismantled and recovered, checking whether the length of the anchor rod exposed by the outer taper sleeve is smaller than the length of the cover wall, and cutting off part of the exposed anchor rod to enable the residual exposed anchor rod to be accommodated in the cover wall when the length of the anchor rod is larger than the length of the cover wall;
(2) installing a protective cover: aligning a cover groove of the protective cover with the lug seat, after aligning a thread hole of the cover lug with the screw rod, sleeving the protective cover on an unloading device outside the recovery anchor rod, pressing the protective cover on the bottom plate, and then temporarily fixing the protective cover on the screw rod by using a fixing nut;
(3) and (3) unlocking the unloading device outside the recovery anchor rod: two nuts on the screw rod are unscrewed to the cover lug abutting against the protective cover, and after the outer taper sleeve is loosened by using a tool, the outer taper sleeve is lifted upwards and slowly to the position of the unscrewed nut; at the moment, the outer taper sleeve is separated from the inner frustum split piece after being lifted, so that the inner frustum left split piece, the inner frustum split piece and the inner frustum right split piece are loosened outwards and separated from each other, and the outer unloading device of the recovery anchor rod unlocks to complete unlocking;
(4) dismantling the protective cover: unscrewing a fixing nut on the screw rod, and taking down the protective cover to finish the detachment of the protective cover;
(5) dismantling the outer unloading device of the recovery anchor rod: removing the nut from the screw, taking down the outer taper sleeve, removing the left part separating piece of the inner frustum, the right part separating piece of the inner frustum, and the clamping piece, and completing the dismantling of the outer unloading device of the recovery anchor rod; and (5) dismantling and recovering the anchor rod.
The protective cover for the external unloading device of the recovery anchor rod can be fixed with the external unloading device of the recovery anchor rod through the screw rod, the fixing nut and the nut to complete installation of the protective cover, when unloading and unlocking are carried out, the nut on the external unloading device of the recovery anchor rod is loosened, the protective cover is still locked on the screw rod at the moment, the outer taper sleeve is lifted, the inner taper table split piece and the clamping piece are loosened to complete unlocking of the anchor rod, and even if the clamping piece is flicked, effective protection can be carried out through the protective cover, and personal safety of unloading personnel is guaranteed.
Drawings
Fig. 1 is a sectional view showing a protective cover for recovering an off-loading device of an anchor rod according to the present invention in an installed and used state.
Fig. 2 is a cross-sectional view of a protective cover for recovering an off-anchor unloading device in accordance with the present invention.
Fig. 3 is a top view of fig. 2 of the present invention.
Fig. 4 is a bottom view of fig. 2 of the present invention.
Fig. 5 is a front view of fig. 2 of the present invention.
Fig. 6 is a left side view of fig. 2 of the present invention.
FIG. 7 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention.
FIG. 8 is a cross-sectional view taken along line B-B of FIG. 2 in accordance with the present invention.
Fig. 9 is a cross-sectional view taken along line C-C of fig. 2 in accordance with the present invention.
Fig. 10 is a cross-sectional view taken along line D-D of fig. 2 in accordance with the present invention.
In the figure:
100 cover 110, cover lug 130, threading hole 130, wall groove 150, cover bottom 160, receiving cavity 170, and fixing nut
200 retrieve external uninstallation device of stock 210 bottom plate 220 interior frustum part of component
221 inner frustum left component 222 inner frustum middle component 223 inner frustum right component 230 outer cone sleeve 231 ear seat 232 through hole 240 clamping piece 250 spring pad 260 nut 270 screw rod
300 retaining structure 310 anchor rod 320 concrete beam 330 soil 340 mortar
Detailed Description
To further explain the technical solution of the present invention, the following detailed description is made with reference to the embodiments, and the orientation is described in a state where the protection cover is installed.
Referring to fig. 1 to 10, a protective cover for recovering an anchor rod external unloading device includes a cover wall 110, a cover lug 120, a wall groove 140 and a cover bottom 150.
The protective cover provided by the invention is matched with the recovery anchor rod external unloading device 200 for use, the structure of the recovery anchor rod external unloading device 200 is described in CN 105544535B, the main structure of the device comprises a bottom plate 210, an inner frustum component 220, an outer cone sleeve 230, clamping pieces 240 and a screw 370, the screw 370 is connected on the bottom plate 210, the inner frustum component 220 is arranged in the outer cone sleeve 230, the peripheral side of the outer cone sleeve 230 is locked on the bottom plate 210 through two screws 270 and locks the anchor rod through the inner frustum component 230 and the clamping pieces 240, the inner frustum component 230 is provided with a conical through hole along the axial direction, the conical through hole is provided with a set of clamping pieces 240 and forms a clamping hole for clamping the anchor rod, the inner cone platform component 230 is cut along the conical through hole to form an inner cone platform left component 221, an inner cone platform middle component 222 and an inner cone platform right component 223, the inner cone platform left component 221, the inner cone platform middle component 222 and the inner cone platform right component 223 are matched with the outer cone sleeve 230 to restrain each set of the clamping pieces 240, two lug bases 231 are symmetrically arranged on the peripheral side of the outer taper sleeve 220, a through hole 232 for the screw 270 to penetrate is formed in each lug base 231, a nut 260 is arranged on each screw 270 in a matched mode, the nut 260 is pressed against each lug base 231, and a gasket 250 is arranged between each nut 260 and each lug base 231.
The cover wall 110 is a circular steel cylinder, and its inside holding chamber 160 that is used for holding stock 310 that forms, the top of cover wall 110 is provided with sealed cover bottom 150, cover wall 110 bottom symmetry sets up open-ended cover groove 140, and cover groove 140 runs through to the outer wall from the inner wall of cover wall 110, and cover groove 140 is two, and the outer wall of cover wall 110 is equipped with the cover ear 120 of outside extension, and cover ear 120 is two, and the symmetry sets up in the both sides of the circumference of cover groove 140, and every cover ear 120 corresponds and sets up directly over cover groove 140, be provided with wire passing hole 130 in the cover ear 120.
Preferably, the inner diameter of the cover wall 110 is 6-20 mm larger than the outer diameter of the outer taper sleeve 230 of the external unloading device 200 for the recovery anchor rod, and the outer diameter of the cover wall 110 is 40-100 mm smaller than the distance between the two screws 270, so that the protective cover 100 can cover the outer taper sleeve 230 and can well move up and down, and the nut 260 on the ear seat 231 can have enough screwing space.
Preferably, the width of the cover groove 140 increases gradually from the inner wall to the outer wall of the cover wall 110, the minimum width of the cover groove 140 is 6-20 mm greater than the width of the ear seat 231 of the recovery anchor rod unloading device 200, and the height of the cover groove 140 is 6-10 mm greater than the height of the ear seat 231 of the recovery anchor rod unloading device 200 and 2-10 mm less than the height of the outer taper sleeve 230 of the recovery anchor rod unloading device 200, so that the cover groove 140 can cover the ear seat 231 and the clip 240 and the anchor rod 310 which are ejected cannot fly out of the protective cover 100 to cause personnel injury.
Preferably, the distance from the top surface of the shroud ear 120 to the bottom of the shroud wall 110 is less than the height of a screw 270 of the recovery anchor rod outer unloading device 200 by 40-60 mm; the distance from the bottom surface of the cover lug 120 to the top surface of the nut 260 is 50-150 mm, so that the nut 260 on the lug seat 231 can have enough screwing space, and the phenomenon that the nut 260 prevents the outer taper sleeve 230 from being jacked upwards due to the fact that the nut 260 is too short in lifting height is avoided, and the inner frustum component 220 cannot be separated.
Preferably, the screw 270 of the external unloading device 200 for the recovery anchor rod is matched with the thread hole 130, the fixing nut 170 and the nut 260 of the cover lug 120, and the inner diameter of the thread hole 130 is 4-10 mm larger than the outer diameter of the screw.
Preferably, the length of the cover wall 110 in the axial direction is 200 to 500mm, so that the unloaded anchor rod 310 has a certain extension space, and cannot be unloaded by abutting against the top of the protection cover 100.
The invention also provides a construction method for recovering the protective cover of the anchor rod external unloading device, which comprises the following construction steps:
(1) preparation work: removing impurities such as cement paste or concrete on the screw 270 of the anchor rod unloading device 200 to be dismantled and recovered, checking whether the length of the anchor rod 310 exposed out of the outer taper sleeve 230 is smaller than the length of the cover wall 110, and cutting off part of the exposed anchor rod 310 when the length of the anchor rod 310 is larger than the length of the cover wall 110 so that the rest of the exposed anchor rod 310 can be accommodated in the cover wall 110;
(2) the boot 100 is installed: after aligning the cover groove 110 of the protective cover 100 with the lug seat 231 and aligning the threading hole 130 of the cover lug 120 with the screw 270, sleeving the protective cover 100 on the unloading device 200 outside the recovery anchor rod, pressing the protective cover 100 against the bottom plate 210, and then temporarily fixing the protective cover 100 on the screw 270 by using a fixing nut 170;
(3) unlocking the recovery anchor rod external unloading device 200: two nuts 260 on the screw 270 are unscrewed to abut against the cover lugs 120 of the protective cover 100, and after the outer taper sleeve 230 is loosened by using a tool, the outer taper sleeve 230 is slowly lifted upwards to the position of the unscrewed nuts 260; at this time, since the outer taper sleeve 230 is separated from the inner frustum split piece 220 after being lifted up, the inner frustum left split piece 221, the inner frustum split piece 222 and the inner frustum right split piece 223 are loosened and separated from each other outwards, and the recovery anchor rod outer unloading device 200 is unlocked to complete unlocking;
(4) removal of the boot 100: unscrewing the fixing nut 170 from the screw 270, and removing the protective cover 100 to complete the removal of the protective cover 100;
(5) dismantling the external unloading device 200 of the recovery anchor rod: the nut 260 is unscrewed from the screw 270, the outer taper sleeve 230 is taken down, the inner frustum left split part 221, the inner frustum middle split part 222, the inner frustum right split part 223 and the clamping piece 240 are removed, and the disassembly of the recovery anchor rod outer unloading device 200 is completed; the recovery bolt 310 may continue to be removed.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a safety cover for retrieving outer uninstallation device of stock which characterized in that: including cover wall, cover ear, wall groove and cover end, the cover wall is the tube-shape, the cover wall is provided with the cover end along axial one end, the cover wall is equipped with the cover groove along axial other end symmetry, and the cover groove is followed the inner wall of cover wall runs through to the outer wall, the outer wall symmetry of cover wall is provided with the cover ear, and the cover ear sets up directly over the cover groove, be provided with in the cover ear and retrieve the outer screw rod complex threading hole of uninstallation device of stock.
2. A protective cover for use in retrieving an off-anchor unloading device as defined in claim 1, wherein: retrieve the outer uninstallation device of stock and include bottom plate, interior frustum part, outer taper sleeve, clamping piece and the screw rod, interior frustum part sets up in outer taper sleeve, and outer taper sleeve week side is through two screw rod locking is at the bottom plate and through interior frustum part and clamping piece resultant force lock stock, and interior frustum part is equipped with the toper through-hole along the axial, and the centre gripping hole of centre gripping stock is formed to a set of clamping piece of toper through-hole configuration interior frustum left part, interior frustum part and interior frustum right part along the cutting of toper through-hole formation, and interior frustum left part, interior frustum part and interior frustum right part are retrained each group of clamping piece under the cooperation of outer taper sleeve, outer taper sleeve week side symmetry is equipped with two ear seats, is equipped with the confession on the ear seat the through-hole that the screw rod worn to put has set the nut on the screw rod, and the nut supports to press on the ear seat.
3. A protective cover for use in retrieving an off-anchor unloading device, as defined in claim 2, wherein: the inner diameter of the cover wall is 6-20 mm larger than the outer diameter of the outer taper sleeve, and the outer diameter of the cover wall is 40-100 mm smaller than the distance between the two screws.
4. A protective cover for use in retrieving an off-anchor unloading device as defined in claim 3, wherein: from the inner wall of cover wall to outer wall direction, the width of cover groove increases gradually, the minimum width in cover groove is greater than the width 6 ~ 20mm of ear seat.
5. A protective cover for use in retrieving an off-anchor unloading device as defined in claim 4, wherein: the height of the cover groove is smaller than the height of the outer taper sleeve by 2-10 mm.
6. A protective cover for use in retrieving an off-anchor unloading device as defined in claim 5, wherein: the distance from the top surface of the cover lug to the bottom of the cover wall is smaller than the height of the screw rod by 40-60 mm; the distance between the bottom surface of the cover lug and the top surface of the nut is 50-150 mm.
7. A protective cover for use in retrieving an off-anchor unloading device as defined in claim 6, wherein: the inner diameter of the wire penetrating hole is 4-10 mm larger than the outer diameter of the screw rod.
8. A protective cover for use in retrieving an off-anchor unloading device as defined in claim 7, wherein: the length of the cover wall along the axial direction is 200-500 mm.
9. The construction method for recovering the protective cover of the anchor rod external unloading device according to claim 8, is characterized in that: the method comprises the following steps:
(1) preparation work: removing sundries on a screw rod of the unloading device outside the anchor rod to be dismantled and recovered, checking whether the length of the anchor rod exposed by the outer taper sleeve is smaller than the length of the cover wall, and cutting off part of the exposed anchor rod to enable the residual exposed anchor rod to be accommodated in the cover wall when the length of the anchor rod is larger than the length of the cover wall;
(2) installing a protective cover: aligning a cover groove of the protective cover with the lug seat, after aligning a thread hole of the cover lug with the screw rod, sleeving the protective cover on an unloading device outside the recovery anchor rod, pressing the protective cover on the bottom plate, and then temporarily fixing the protective cover on the screw rod by using a fixing nut;
(3) and (3) unlocking the unloading device outside the recovery anchor rod: two nuts on the screw rod are unscrewed to the cover lug abutting against the protective cover, and after the outer taper sleeve is loosened by using a tool, the outer taper sleeve is lifted upwards and slowly to the position of the unscrewed nut; at the moment, the outer taper sleeve is separated from the inner frustum split piece after being lifted, so that the inner frustum left split piece, the inner frustum split piece and the inner frustum right split piece are loosened outwards and separated from each other, and the outer unloading device of the recovery anchor rod unlocks to complete unlocking;
(4) dismantling the protective cover: unscrewing a fixing nut on the screw rod, and taking down the protective cover to finish the detachment of the protective cover;
(5) dismantling the outer unloading device of the recovery anchor rod: removing the nut from the screw, taking down the outer taper sleeve, removing the left part separating piece of the inner frustum, the right part separating piece of the inner frustum, and the clamping piece, and completing the dismantling of the outer unloading device of the recovery anchor rod; and (5) dismantling and recovering the anchor rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011447840.4A CN112538853A (en) | 2020-12-09 | 2020-12-09 | Protective cover for recovering anchor rod external unloading device and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011447840.4A CN112538853A (en) | 2020-12-09 | 2020-12-09 | Protective cover for recovering anchor rod external unloading device and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112538853A true CN112538853A (en) | 2021-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011447840.4A Pending CN112538853A (en) | 2020-12-09 | 2020-12-09 | Protective cover for recovering anchor rod external unloading device and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112538853A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2527549A2 (en) * | 2011-05-23 | 2012-11-28 | CFM Schiller GmbH | Heavy load anchor and method for setting heavy load anchors |
| EP2695998A2 (en) * | 2012-08-10 | 2014-02-12 | Herbert Neidhardt | Method for producing an injection pile beneath a water surface |
| CN110397035A (en) * | 2019-08-20 | 2019-11-01 | 浙江中桥预应力设备有限公司 | A kind of recoverable version anchor cable |
| CN209816842U (en) * | 2019-01-02 | 2019-12-20 | 北京中岩大地科技股份有限公司 | Recoverable anchor rod with early warning function |
| CN213926252U (en) * | 2020-12-09 | 2021-08-10 | 华侨大学 | A safety cover for retrieving outer uninstallation device of stock |
-
2020
- 2020-12-09 CN CN202011447840.4A patent/CN112538853A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2527549A2 (en) * | 2011-05-23 | 2012-11-28 | CFM Schiller GmbH | Heavy load anchor and method for setting heavy load anchors |
| EP2695998A2 (en) * | 2012-08-10 | 2014-02-12 | Herbert Neidhardt | Method for producing an injection pile beneath a water surface |
| CN209816842U (en) * | 2019-01-02 | 2019-12-20 | 北京中岩大地科技股份有限公司 | Recoverable anchor rod with early warning function |
| CN110397035A (en) * | 2019-08-20 | 2019-11-01 | 浙江中桥预应力设备有限公司 | A kind of recoverable version anchor cable |
| CN213926252U (en) * | 2020-12-09 | 2021-08-10 | 华侨大学 | A safety cover for retrieving outer uninstallation device of stock |
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