CN213926252U - A safety cover for retrieving outer uninstallation device of stock - Google Patents
A safety cover for retrieving outer uninstallation device of stock Download PDFInfo
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- CN213926252U CN213926252U CN202022976231.XU CN202022976231U CN213926252U CN 213926252 U CN213926252 U CN 213926252U CN 202022976231 U CN202022976231 U CN 202022976231U CN 213926252 U CN213926252 U CN 213926252U
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- cover
- wall
- retrieving
- ear
- screw rod
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Abstract
The utility model relates to a safety cover for retrieving outer uninstallation device of stock, at the bottom of cover wall, cover ear, wall groove and cover, the cover wall is circular form steel cylinder, the top of cover wall is provided with at the bottom of the sealed cover, the bottom symmetry of cover wall sets up open-ended cover groove, the cover wall symmetry directly over the cover groove is provided with the cover ear, be provided with the wire hole in the cover ear, the safety cover can get up through screw rod, fixation nut and nut with retrieving the outer uninstallation device of stock and fix, accomplishes safety cover installation and uninstallation unblock. The utility model discloses the personal safety of uninstallation personnel has been guaranteed to the device, convenient to use, simple structure, and the cost of manufacture is low, and the practicality is strong.
Description
Technical Field
The utility model relates to a construction technical field especially relates to a safety cover for retrieving outer uninstallation device of stock.
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.
SUMMERY OF THE UTILITY MODEL
The utility model discloses dismantle the potential safety hazard of in-process to recoverable stock, its aim at provides a simple structure, and ann tears the convenience open, safe and reliable's the outer safety cover of uninstalling device of recovery stock, the utility model discloses an another aim at provides the construction method of this safety cover.
In order to achieve the above purpose, the utility model 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 utility model, the outer unloading device of the recovery anchor rod comprises a bottom plate, an inner frustum component, an outer taper sleeve, clamping pieces and the screw rod, wherein the inner frustum component is arranged in the outer taper sleeve, the periphery of the outer taper sleeve is locked on the bottom plate through two screw rods, the inner frustum component and the clamping pieces are locked together to form the anchor rod, the inner frustum component is axially provided with a tapered through hole, the tapered 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 tapered through hole to form an inner frustum left component, an inner frustum middle component and an inner frustum right component, each group of clamping pieces are restrained by the inner frustum left component, the inner frustum middle component and the inner frustum right component under the matching of the outer taper sleeve, the periphery of the outer taper sleeve is symmetrically provided with two lug seats, the lug seats are provided with through holes for the screw rod to penetrate through, and the screw rod is provided with nuts, the nut is pressed against the ear seat.
As an optimal mode of the utility model, the inner diameter ratio of cover wall the external diameter of outer taper sleeve is big 6 ~ 20mm, the outer diameter ratio of cover wall is two distance between the screw rod is little 40 ~ 100 mm.
As an optimal mode of the utility model, follow the inner wall to the outer wall direction of cover wall, the width crescent in cover groove, the minimum width in cover groove is greater than the width 6 ~ 20mm of ear seat.
As an optimal mode of the utility model, the height in cover groove is less than the height 2 ~ 10mm of 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.
As an optimal mode of the utility model, the internal diameter in wire feed hole is greater than the external diameter 4 ~ 10mm of screw rod.
As an optimal mode of the utility model, the cover wall is 200 ~ 500mm along axial length.
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 utility model provides a pair of a safety cover for retrieving outer uninstallation device of stock can pass through the screw rod with the outer uninstallation device of recovery stock, fixing nut and nut are fixed, accomplish the safety cover installation, during the uninstallation unblock, earlier not hard up the nut on the outer uninstallation device of recovery stock, the safety cover still locks on the screw rod this moment, mention outer taper sleeve, make interior frustum part and clamping piece not hard up in the messenger, accomplish the unblock of stock, even the condition of clamping piece fly-bomb appears this moment, also can carry out effectual protection through the safety cover, guaranteed uninstallation personnel's personal safety, the utility model discloses convenient to use, simple structure, the cost of manufacture is low, and the practicality is strong.
Drawings
Fig. 1 is a sectional view of the utility model of a safety cover installation in service condition for retrieving the outer uninstallation device of stock.
Fig. 2 is a sectional view of the protective cover of the unloading device for recovering the anchor rod.
Fig. 3 is a top view of fig. 2 according to the present invention.
Fig. 4 is a bottom view of fig. 2 according to the present invention.
Fig. 5 is a front view of fig. 2 according to the present invention.
Fig. 6 is a left side view of fig. 2 according to the present invention.
Fig. 7 is a cross-sectional view taken along line a-a of fig. 2 according to the present invention.
Fig. 8 is a cross-sectional view taken along line B-B of fig. 2 according to the present invention.
Fig. 9 is a cross-sectional view taken along line C-C of fig. 2 according to the present invention.
Fig. 10 is a cross-sectional view taken along line D-D of fig. 2 according to 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 utility model discloses the safety cover that sets up uses with retrieving outer uninstallation device 200 of stock, retrieves outer uninstallation device 200 of stock structure record in CN 105544535B, and its major structure includes bottom plate 210, interior frustum component 220, outer taper sleeve 230, clamping piece 240 and screw rod 370, screw rod 370 connects on bottom plate 210, and interior frustum component 220 sets up in outer taper sleeve 230, and outer taper sleeve 230 week side is locked at bottom plate 210 through two screw rod 270 and is passed through interior frustum component 230 and clamping piece 240 resultant lock solid stock, and interior frustum component 230 is equipped with the toper through-hole along the axial, and the toper through-hole disposes a set of clamping piece 240 and forms the centre gripping hole of centre gripping stock the cutting of interior frustum component 230 along the toper through-hole forms interior frustum left side components 221, interior frustum component 222 and interior frustum right side components 223, and interior frustum left side components 221, middle components 222 and interior frustum right components 223 retrain the cooperation of outer taper sleeve 230 each clamping piece 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 utility model also provides a construction method for retrieving the safety cover of the outer uninstallation device of stock, its construction steps are as follows:
(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; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022976231.XU CN213926252U (en) | 2020-12-09 | 2020-12-09 | A safety cover for retrieving outer uninstallation device of stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022976231.XU CN213926252U (en) | 2020-12-09 | 2020-12-09 | A safety cover for retrieving outer uninstallation device of stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213926252U true CN213926252U (en) | 2021-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022976231.XU Active CN213926252U (en) | 2020-12-09 | 2020-12-09 | A safety cover for retrieving outer uninstallation device of stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213926252U (en) |
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2020
- 2020-12-09 CN CN202022976231.XU patent/CN213926252U/en active Active
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