CN201598636U - Anchor cable lifter - Google Patents
Anchor cable lifter Download PDFInfo
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- CN201598636U CN201598636U CN2010201156758U CN201020115675U CN201598636U CN 201598636 U CN201598636 U CN 201598636U CN 2010201156758 U CN2010201156758 U CN 2010201156758U CN 201020115675 U CN201020115675 U CN 201020115675U CN 201598636 U CN201598636 U CN 201598636U
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- anchor
- anchor cable
- main body
- block main
- cable
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Abstract
The utility model provides an anchor cable lifter, which comprises an anchor block main body and a support, wherein models of the anchor block main body and an anchor block at a position of a to-be-detached outer anchor head are required to be consistent, and the support consists of at least three supporting bars which are evenly distributed on the periphery of the anchor block main body. One end of each supporting bar is connected with the anchor block main body, and the anchor cable lifter can be a simple and practicable anchor cable unloading device applied in anchoring engineering, and can be used for unloading anchor cable stress or disassembling anchorage devices (including anchor blocks and clamping plates), thereby recycling anchor cable devices and saving resources. The anchor cable lifter has the advantages of simple structure, convenient use, simple manufacturing, low cost, capability of being processed at the scene and the like, and is particularly adaptable to the engineering in need of adopting anchor cable pressurizing regulating to rectify inclination of inclined buildings (structures).
Description
Technical field the utility model relates to a kind of provision for disengagement of prestress anchorage cable engineering, the specifically a kind of unloading behind the prestress anchorage cable tensioning fixation, device of removing anchorage device of being applicable to.
The background technology prestress anchorage cable is a kind of comparatively complicated technology measure that is widely used in bridge engineering, landslide control, high gradient slope reinforcing, dam reinforcing, pattern foundation pit supporting structure, underground chamber reinforcing, and its material mainly is made of cement mortar and high strength steel strand.Pre existing stress anchor cable structure generally is made up of anchoring section, free section, outer anchor head three parts according to its mechanism of action.The prestressed anchor cable stretching finishes after the also anchoring, realize balancing of stresses by anchoring section, free section and outer anchor head, the outer anchor head of counter-force structure retrains because of ground tackle, the tensile load that applies is converted into outer anchor head concentrated force, the anchoring section of prestress anchorage cable, free section and the outer anchor head of counter-force structure are formed the integrated stress field jointly, realize the reinforcing to structure.
At present, after traditional anchor cable applied prestressing force, its locking mainly was the acting in conjunction by anchor block, intermediate plate and the prestress wire at outer anchor head place, and formation self-locking system is kept the stress in the anchor cable.Wherein, anchor block is provided with the taper anchor hole that passes and be symmetrically distributed for steel strand vertically, the outer imperial palace of taper anchor hole is little, be built-in with the intermediate plate that is complementary with the anchor hole structure at the taper anchor hole, intermediate plate also is a cone body, generally by two or three piece together one cylindric, the intermediate plate inboard is provided with the Luo tooth, plays " bonding interlock " prestress wire, stops the effect of steel strand tension after-contraction rebound deformation.During the stretch-draw anchor cable, application of force direction owing to intermediate plate and anchor block hole tapering toe-in, can not produce interlock to steel strand outwardly, and steel strand then can outwards produce elastic deformation freely; Design prestressing force when anchorage cable stretching arrives, after the jack unloading, the steel strand desire produces retraction and is out of shape, because retraction direction is identical with intermediate plate tapering convergence direction, the intermediate plate nature " is stung tightly " steel strand and is stoped its retraction, and then prestressing force obtains keeping, the prestressing force that anchor cable applies is bigger, and the intermediate plate interlock must be healed tightly.Anchor cable relies on this self-locking system, has reached locking and has kept prestressed purpose.The prestress anchorage cable technology has a distinguishing feature, i.e. prestressing force and distortion can only change to (outer) direction, in the opposite direction, has limited the release and the retraction distortion of power, after in a single day anchor cable locks like this, just can't dismantle.
In engineering is used, tend to run into some provisional anchoring engineerings, promptly prestress anchorage cable does not need it to continue to play a role after the single tension locking is finished, and these anchor blocks, intermediate plate just can be recycled and reused by removing, and avoids waste.Though As time goes on, anchor cable prestressing force can be decayed because of various reasons, as long as anchor cable prestressing force exists, intermediate plate, anchor block just can't be dismantled.At present, though existing producer has developed the anchor cable anchor restorer, all there are defectives such as cost height, complex structure, operation inconvenience.
The summary of the invention the purpose of this utility model is to provide a kind of anchor cable simple in structure, easy to use, with low cost to open the anchor device.
For achieving the above object, the technical scheme taked of the utility model is:
A kind of anchor cable opens the anchor device, comprises anchor block main body and support, and described anchor block main body must be consistent with the anchor block model at the outer anchor head place of need dismountings; Described support is made of three poles at least, and three poles are distributed on the anchor block body peripheral edge, and an end of pole links to each other with the anchor block main body.
Described pole two ends homonymy is processed with the draw-in groove of half breach, and an end of pole is by the edge welding of draw-in groove and anchor block main body, and the other end is a free end, and outward-dipping 3～7 °.
Described pole one end is processed with screw thread, is connected with the screw that is distributed on the anchor block body peripheral edge.
Described anchor block main body is replaced by the pipe fitting of same diameter, evenly processes three U-lags on the tube wall of pipe fitting one end, constitutes pipe fitting and rack integral form of structure.
Described pole other end periphery links to each other with outer garter spring.
The above-mentioned anchor cable that the utility model provides opens the anchor device, it is a kind of simple and easy to do anchor cable relief arrangement of existing anchorage engineering that is used for, be used to unload the prestressing force or the dismounting ground tackle (comprising anchor block, intermediate plate) of anchor cable, thereby realize recycling anchor cable ground tackle, aim of saving.This anchor cable opens the anchor utensil plurality of advantages such as simple in structure, easy to use, that making is simple, with low cost, can process at the scene, be applicable to ground tackle unloading, the dismounting of different model, be particularly useful for the inclination building are adopted in the engineering of anchor cable pressurization regulation and control rectification.
Description of drawings 1a is the structural representation that the utility model anchor cable opens anchor device embodiment one;
Fig. 1 b is the structural representation that anchor cable opens pole among the anchor device embodiment one.
Fig. 2 a is the structural representation that the utility model anchor cable opens anchor device embodiment two;
Fig. 2 b is the structural representation that anchor cable opens pole among the anchor device embodiment two;
Fig. 2 c is the structural representation that anchor cable opens anchor block bottom surface among the anchor device embodiment two.
Fig. 3 is the structural representation that the utility model anchor cable opens anchor device embodiment three.
Fig. 4 is that anchor cable opens anchor device assembling user mode principle schematic.
Among the figure: 1-anchor block main body; The 2-anchor hole; 3-pole; The outer garter spring of 4-; The 5-draw-in groove; The 6-screw thread; The 7-screw; The anchor block at the outer anchor head place that 8-need dismantle; The 9-steel strand; The 10-intermediate plate; 11-feed-through hydraulic jack; The 12-moveable anchor.
The specific embodiment is described in further detail the utility model below in conjunction with drawings and Examples for further set forth technological means and the technique effect that the utility model is adopted when realizing being scheduled to purpose.
Shown in Fig. 1 a, Fig. 1 b, be first kind of embodiment that the utility model anchor cable opens the anchor device.It comprises anchor block main body 1, pole 3, outer garter spring 4 three parts.Described anchor block main body 1 selects for use model to decide according to the engineering actual conditions, must be consistent with the anchor block model of dismounting, applicable to the dismounting of different hole count ground tackles; Described pole 3 generally needs three (perhaps) to constitute support, and pole 3 can be used secondary, the processing of grade III steel muscle, and the scene is drawn materials very convenient.Bar diameter need select for use Φ more than 28, can determine according to the maximum load that need bear.The two ends of every pole 3 are processed with the draw-in groove 5 of half breach, three poles 3 are uniformly distributed in the periphery of anchor block main body 1, one end of pole 3 is welded on the edge of anchor block main body 1 by draw-in groove 5, the other end is a free end, outward-dipping 3～7 °, outward-dipping angle can be adjusted according to on-site actual situations, and pole 3 bottoms are welded with outer garter spring 4, play the purpose of constraint entire bracket lateral deformation, outer garter spring 4 can select for use the round steel of diameter phi about 10 or the close band steel of width to make.Pole 3 highly is generally 100mm, can be advisable from taking-up in the middle of the support with anchor cable prestressing force unloading back anchor clipper.More than this anchor cable to open the embodiment field machining of anchor device very convenient.
Shown in Fig. 2 a, Fig. 2 b and Fig. 2 c, be second kind of embodiment that the utility model anchor cable opens the anchor device.Being connected between the pole 3 that described anchor cable opens the anchor device and the anchor block main body 1, also can adopt the mode that is threaded, an end that is about to pole 3 is processed into screw thread 6, establishes screw 7 at anchor block main body 1 periphery, pole 3 is screwed in the anchor block screw 7, need not welds again between pole 3 and the anchor block main body 1 like this.The support bottom is welded with outer garter spring 4, plays the effect of lateral restraint.Because this kind connection requires greatly the room of anchor block main body 1 periphery, be applicable to the following anchor block dismounting in five holes.
As shown in Figure 3, be the third embodiment that the utility model anchor cable opens the anchor device.It and embodiment one, two principles are similar, and the anchor block main body that anchor cable opens the anchor device also can be replaced by the steel pipe of same diameter, outer diameter of steel pipes should with anchor block main diameter basically identical, internal diameter is slightly larger than anchor block main body anchor hole position, wall thickness is advisable about with 5mm.The steel pipe height is generally 150mm, evenly processes three U-lags on the tube wall of steel pipe one end, the high 100mm of groove, and the groove top is circular-arc, constitutes steel pipe and rack integral form of structure.From the cross section, the three-flute position evenly distributes on the cross section circle, with six five equilibriums that are configured to that keep.
As shown in Figure 4, the utility model needs to be used with feed-through hydraulic jack 11, so that the power of the unloading of anchor cable prestressing force, ground tackle dismounting to be provided.This utility model uses erection sequence to be: at first anchor cable is opened the anchor device and be placed in the outer anchor head place of prestress anchorage cable, the bottom draw-in groove of pole 3 is stuck on the outer rim of the anchor block 8 of anchor head outside the prestress anchorage cable, anchor cable exposes steel strand 9 and passes the anchor hole 2 that anchor cable opens the anchor device and (see Fig. 1 a, Fig. 2 a), then feed-through hydraulic jack 11 is installed in anchor cable and opens on the anchor device, at last with promptly installing behind moveable anchor 12, intermediate plate 10 chuckings.When using the utility model anchor cable fish, load by feed-through hydraulic jack 11, formation is to the two times tensioning of prestress wire 9, in stretching process, prestress anchorage cable intermediate plate 10 is subjected to steel strand 9 pulling capacity outward, meanwhile, counter-force is by on the anchor block 8 that opens anchor device support and be delivered to desire dismounting anchor head place, and the anchor block 8 at anchor head place and intermediate plate 10 just constitute two stressed opposite parts like this.When feed-through hydraulic jack 11 tensile loads during greater than the former locking load of prestress anchorage cable, steel strand 9 outwards produce elastic deformation thereupon, originally the intermediate plate 10 invar twisted wires 9 of chucking are drawn and are relaxed, take out intermediate plate 10 neutral of just available screwdriver this moment in the middle of anchor cable opens anchor device support, feed-through hydraulic jack 11 off-loads then, previous anchor cable then loses the locking effect because of losing intermediate plate 10 constraints, thereby reaches unloading anchor cable prestressing force, the purpose of removing intermediate plate 10, anchor block 8.Particularly when anchor cable pressurization regulation and control correction inclination building, need back and forth load～unload a plurality of anchor cables, so that control rectification speed and rectification direction use the utility model can realize this purpose easily.
Above, describing the specific embodiment of the present utility model with reference to the accompanying drawings, is not to be used for the utility model is limited.Those skilled in the art can understand, under the situation that does not depart from spirit and scope of the present utility model, under technology enlightenment provided by the utility model, can also make other equivalent modifications and improvement to the specific embodiment of the present utility model, these changes and replacement all drop in the utility model claims institute restricted portion.
Claims (5)
1. an anchor cable opens the anchor device, it is characterized in that: it comprises anchor block main body and support, and described support is made of three poles at least, and three poles are distributed on the anchor block body peripheral edge, and an end of pole links to each other with the anchor block main body.
2. anchor cable according to claim 1 opens the anchor device, it is characterized in that: described pole two ends homonymy is processed with the draw-in groove of half breach, and an end of pole is by the edge welding of draw-in groove and anchor block main body, and the other end is a free end, and outward-dipping 3～7 °.
3. anchor cable according to claim 1 opens the anchor device, it is characterized in that: described pole one end is processed with screw thread, is connected with the screw that is distributed on the anchor block body peripheral edge.
4. anchor cable according to claim 1 opens the anchor device, it is characterized in that: described anchor block main body is replaced by the pipe fitting of same diameter, evenly processes three U-lags on the tube wall of pipe fitting one end, constitutes pipe fitting and rack integral form of structure.
5. anchor cable according to claim 1 opens the anchor device, it is characterized in that: described pole other end periphery links to each other with outer garter spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201156758U CN201598636U (en) | 2010-02-12 | 2010-02-12 | Anchor cable lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201156758U CN201598636U (en) | 2010-02-12 | 2010-02-12 | Anchor cable lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201598636U true CN201598636U (en) | 2010-10-06 |
Family
ID=42809686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201156758U Expired - Fee Related CN201598636U (en) | 2010-02-12 | 2010-02-12 | Anchor cable lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201598636U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929668A (en) * | 2015-06-25 | 2015-09-23 | 淮南矿业(集团)有限责任公司 | Anchor cable disassembly joint and anchor cable disassembly method |
| CN109339836A (en) * | 2018-11-20 | 2019-02-15 | 中煤新集能源股份有限公司 | The quick anchor restorer of anchor cable |
| CN109487688A (en) * | 2018-12-23 | 2019-03-19 | 东莞市建设工程检测中心 | Anchor head tripper and unlocking method |
-
2010
- 2010-02-12 CN CN2010201156758U patent/CN201598636U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929668A (en) * | 2015-06-25 | 2015-09-23 | 淮南矿业(集团)有限责任公司 | Anchor cable disassembly joint and anchor cable disassembly method |
| CN109339836A (en) * | 2018-11-20 | 2019-02-15 | 中煤新集能源股份有限公司 | The quick anchor restorer of anchor cable |
| CN109487688A (en) * | 2018-12-23 | 2019-03-19 | 东莞市建设工程检测中心 | Anchor head tripper and unlocking method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20160212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |