CN203729298U - Recyclable prestressed anchor rod - Google Patents
Recyclable prestressed anchor rod Download PDFInfo
- Publication number
- CN203729298U CN203729298U CN201420070962.XU CN201420070962U CN203729298U CN 203729298 U CN203729298 U CN 203729298U CN 201420070962 U CN201420070962 U CN 201420070962U CN 203729298 U CN203729298 U CN 203729298U
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- CN
- China
- Prior art keywords
- steel strand
- intermediate plate
- front intermediate
- prestressed anchor
- anchor pole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a recyclable prestressed anchor rod which comprises a free section and an anchoring section. The anchoring section comprises a base, a sleeve connected with the upper end of the base, and a barrel connected with the lower end of the base, a central hole is arranged on the base, a plurality of peripheral holes are distributed around the central hole, a gap hole communicated with the central hole is formed on the side wall of each peripheral hole, a slidable middle sliding core is connected in the central hole in a sleeved manner and fixedly connected with an unlocking steel stranded wire, each peripheral hole is formed by two coaxial and symmetrical conical holes A, a working steel stranded wire is penetratingly arranged in each peripheral hole and clamped with a first rear clamping piece through a first front clamping piece and the first rear clamping piece and the first front clamping piece closely fit with the corresponding conical holes A, and each gap hole is filled with a locking block and the locking block closely fits with the corresponding first front clamping piece and/or the corresponding first rear clamping piece. The working steel stranded wires are unlocked from the anchoring section by utilizing a principle of mechanical braking, so that recycling of the working steel stranded wires is realized, energy conservation and environment protection are realized, and the recyclable prestressed anchor rod has high popularization and application values.
Description
Technical field
The present invention relates to technical field of buildings, the recoverable prestressed anchor pole that particularly a kind of building operations is used.
Background technology
In building foundation pit work progress, sometimes adopt to squeezing into soil nailing or anchor pole in the foundation ditch periphery soil body and maintain the stable of the soil body, it is main bearing member that these soil nailings or anchor pole generally adopt steel, complete, after foundation ditch periphery backfilling of earthwork, just no longer need these soil nailings or anchor pole to maintain the stable of the soil body Deng foundation ditch inside subject structure construction.At this moment, soil nailing, anchor pole in the soil body are just ineffective, but most of because of darker in embedding soil, firm with rock-soil layer adhesion, be difficult for take out, often just abandon in soil, generally can not be corroded, become the underground obstacle in underground iron and steel rubbish and later adjacent architectural building site.
Summary of the invention
Main purpose of the present invention is, for above-mentioned deficiency of the prior art, provides a kind of recoverable prestressed anchor pole.
The present invention solves the technical scheme that prior art problem adopts: a kind of recoverable prestressed anchor pole, comprise free segment and anchoring section, its improvement is: described anchoring section comprise pedestal, with the detachable sleeve pipe being connected in pedestal upper end and with the detachable cylindrical shell being connected in pedestal lower end, on described pedestal, be provided with a centre bore along axis direction, described centre bore is distributed with a plurality of perimeter holes around, and described perimeter hole sidewall offers the mesopore communicating with described centre bore;
In described centre bore, be socketed with one slidably in the middle of slide core, described in the middle of slide core be fixedly connected with release steel strand; Described perimeter hole is made up of two coaxial and symmetrical bellmouth A, and the aperture at perimeter hole two ends is greater than the aperture of mid portion, in each described perimeter hole, wear work steel strand, described work steel strand are by the first front intermediate plate and the clamping of the first rear jaw, and described the first front intermediate plate and the first rear jaw and described bellmouth A fit tightly; In described mesopore, be filled with a latch segment, described latch segment and described the first front intermediate plate and/or the first rear jaw fit tightly.
Below technique scheme is further elaborated:
Further, have one first fixed head in described cylindrical shell, on described the first fixed head, connect one first sideboard by the first elastic mechanism, described the first sideboard is posted by described pedestal lower end.
Further, described sleeve pipe is threaded with described pedestal upper end by casing joint, and described cylindrical shell is threaded with described pedestal lower end.
Further, in the middle of described, slide core is provided with connecting hole, described connecting hole is made up of two coaxial and symmetrical bellmouth B, and the aperture at connecting hole two ends is greater than the aperture of mid portion, described release steel strand are arranged in described connecting hole and by the second front intermediate plate and the clamping of the second rear jaw, described the second front intermediate plate and the second rear jaw and described bellmouth B fit tightly.
Further, the inner surface of described the first front intermediate plate, the first rear jaw is provided with for increasing first of between described work steel strand frictional force and increases the structure of rubbing.
Further, the inner surface of described the second front intermediate plate, the second rear jaw is provided with for increasing second of between described release steel strand frictional force and increases the structure of rubbing.
Further, described first to increase the structure of rubbing be graininess projection or screw thread.
Further, described second to increase the structure of rubbing be graininess projection or screw thread.
Further, also comprise additional anchor section, described additional anchor section comprises the Connection Block of the lower end that is connected in cylindrical shell, on described Connection Block, be provided with vertically a plurality of additional holes, described additional holes is made up of two coaxial and symmetrical bellmouth C, and the aperture at additional holes two ends is greater than the aperture of mid portion, in each described additional holes, wear additional steel strand, described additional steel strand are by the 3rd front intermediate plate and the clamping of the 3rd rear jaw, and described the 3rd front intermediate plate and the 3rd rear jaw and described bellmouth C fit tightly.
Further, have one second fixed head in described cylindrical shell, on described the second fixed head, connect one second sideboard by one second elastic mechanism, described the second sideboard is posted by described Connection Block upper end.
The invention has the beneficial effects as follows: in the present invention, release is out from anchoring section for steel strand to utilize the principle of mechanical braking to work, realize the recovery of work steel strand, concrete, in use, the first front intermediate plate and the first rear jaw are stung tight work steel strand by frictional force, the work steel strand of making can bear the pulling force needing, need to reclaim time, utilize the instruments such as jack to apply pulling force to release steel strand, in the middle of release steel strand drag, slide core is slided, the most at last, slide core pulls out from pedestal, now, latch segment comes off because of the support that has lost middle slide core, the first front intermediate plate, therefore the first rear jaw has lost the support of latch segment and has become flexible, come off from work steel strand, so, work steel strand can easily be extracted from pedestal, to reach the object of removing underground discarded work steel strand, obviously, the anchor pole of structure is in removal process, and required manpower is few, construction cost is low, convenient and swift, and energy-conserving and environment-protective, have larger application value.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the structural representation of middle slide core in the embodiment of the present invention;
Fig. 3 is the structural representation of the first front intermediate plate in the embodiment of the present invention;
Fig. 4 is that the present invention is applied in the structural representation in foundation pit construction;
Fig. 5 is the structural formula schematic diagram of another embodiment of the present invention;
In figure: anchoring section 100; Cylindrical shell 101; The first fixed head 1011; The second fixed head 1012; Pedestal 102; Sleeve pipe 103; Casing joint 104; Middle slide core 105; The first front intermediate plate 106; The second front intermediate plate 107; The first elastic mechanism 108; The first sideboard 109; Latch segment 110; Connection Block 201; The second sideboard 202; The second elastic mechanism 203; The 3rd front intermediate plate 204; Additional steel strand 205; Free segment 300; Work steel strand 301; Release steel strand 302; Bolt support body 400.
Realization, functional characteristics and the advantage of the object of the invention, in connection with embodiment, are described further with reference to accompanying drawing.
Detailed description of the invention
Describe technical scheme of the present invention in detail below with reference to drawings and the specific embodiments, so as clearer, understand invention essence of the present invention intuitively.
Shown in Fig. 3, embodiment of the present utility model provides a kind of recoverable prestressed anchor pole, comprise free segment 300 and anchoring section 100, wherein, anchoring section 100 comprise pedestal 102, with the detachable sleeve pipe being connected 103 in pedestal 102 upper ends and with the detachable cylindrical shell being connected 101 in pedestal 102 lower ends, as preferably, above-mentioned sleeve pipe 103 is adopted and is threaded with pedestal 102 upper ends by casing joint 104, cylindrical shell 101 also adopts and is threaded with pedestal 102 lower ends, like this, be convenient to assembly and disassembly.
On pedestal 102, be provided with a centre bore along axis direction, centre bore is distributed with a plurality of perimeter holes around, and the quantity of perimeter hole is generally according to settings such as the concrete application places of anchor pole, general, can be 5 or 7, perimeter hole sidewall offers the mesopore communicating with centre bore.In centre bore, be socketed with one slidably in the middle of slide core 105, middle slide core 105 is fixedly connected with release steel strand 302, in the time that release steel strand 302 are applied to certain pulling force, middle slide core 105 can slowly skid off from centre bore.Perimeter hole is made up of two coaxial and symmetrical bellmouth A, and the aperture at perimeter hole two ends is greater than the aperture of mid portion, in each perimeter hole, wear work steel strand 301, work steel strand 301 are by the first front intermediate plate 106 and the clamping of the first rear jaw, the first front intermediate plate 106 and the first rear jaw and bellmouth A fit tightly, concrete, the first front intermediate plate 106 and the first rear jaw are two semicircle shape cone sheets, the first front intermediate plate 106 and the first rear jaw are combined to form the cone of hollow, front and back are wrapped on work steel strand 301, and rely on frictional force to sting tight work steel strand 301, make work steel strand 301 can bear in the axial direction the pulling force of setting.In mesopore, be filled with a latch segment 110, latch segment 110 and the first front intermediate plate 106 and/or the first rear jaw fit tightly, this latch segment 110 provides normal pressure for the first front intermediate plate 106 and/or the first rear jaw, so, the first front intermediate plate 106 and/or the first rear jaw are tightly wrapped on work steel strand 301.
In cylindrical shell 101, there is one first fixed head 1011, on the first fixed head 1011, connect one first sideboard 109 by the first elastic mechanism 108, as preferably, the first elastic mechanism 108 adopts spring, one end of spring is against on the first fixed dam, and the other end is connected with the first sideboard 109; And the first sideboard 109 is posted by pedestal 102 lower ends, to keep out and to fix the first front intermediate plate 106 and the first rear jaw in its perimeter hole, avoid the first front intermediate plate 106 and the first rear jaw to move in the axial direction.
As preferred embodiments, middle slide core 105 is provided with connecting hole, connecting hole is made up of two coaxial and symmetrical bellmouth B, and the aperture at connecting hole two ends is greater than the aperture of mid portion, release steel strand 302 are arranged in connecting hole and by the second front intermediate plate 107 and the clamping of the second rear jaw, the second front intermediate plate 107 and the second rear jaw and bellmouth B fit tightly, be between release steel strand 302 and middle slide core 105, also to adopt the connected mode being similar between work steel strand 301 and pedestal 102, just work and being connected between steel strand 301 and pedestal 102 also dispose the latch segment 110 of release.
In order to make work steel strand 301 and pedestal 102 fixing more firm, the pulling force bearing is in the axial direction larger, be provided with for increasing first of between described work steel strand 301 frictional force and increase the structure of rubbing in the inner surface of the first front intermediate plate 106, the first rear jaw, first to increase the structure of rubbing can be the graininess projection that is distributed in the inner surface of the first front intermediate plate 106, the first rear jaw for this, can be also screw thread etc.
Equally, the inner surface of the second front intermediate plate 107, the second rear jaw is provided with for increasing second of between described release steel strand 302 frictional force and increases the structure of rubbing, second to increase the structure of rubbing can be the graininess projection that is distributed in the inner surface of the second front intermediate plate 107, the second rear jaw for this, can be also screw thread etc.So, can make release steel strand 302 and middle slide core 105 fixations.
Shown in Fig. 4, anchor pole of the present utility model, be mainly used in foundation pit construction, in concrete application process, under anchor pole is buried by entirety, the upper end of free segment 300 is connected to bolt support body 400, for the pulling force at anchor pole head place being reached to the region of anchoring section 100, work steel strand 301 is applied to prestressing force; Anchoring section 100 is to be buried in the earth part and the bonding rubbing action of soil layer for increasing work steel strand 301.Anchor pole of the present utility model, the first front intermediate plate 106 and the first rear jaw, under the support of locking sliding block, can provide larger (for example, up to 20 tons) frictional force straining at work steel strand 301, are ideally maintaining the stable of soil mass of foundation pit.
When foundation ditch inside subject structure construction completes, after foundation ditch periphery backfilling of earthwork, one section of stretching out at body of wall of available jack pair release steel strand 302 applies pulling force, only need certain pulling force (for example 500kg to 1 ton) just release steel strand 302 and the middle slide core 105 that is being close to release steel strand 302 ends can be pulled out, like this, there is space in the position that middle slide core 105 is filled, the latch segment 110 originally closely agreeing with has lost the support of middle slide core 105, come off at once, and be wrapped in the first front intermediate plate 106 on work steel strand 301 and the first rear jaw also because lose the support of latch segment 110, loose off, so again all working steel strand 301 being applied to pulling force can pull out it from the soil body, realize the recovery of anchor pole, the release steel strand 302 that reclaim can recycle with work steel strand 301.
Or referring to figs. 1 through shown in Fig. 3, as further improvement of the utility model, can set up additional anchor section in anchoring section 100 lower ends, this additional anchor section comprises the Connection Block 201 of the lower end that is connected in cylindrical shell 101, on Connection Block 201, be provided with vertically a plurality of additional holes, additional holes is made up of two coaxial and symmetrical bellmouth C, and the aperture at additional holes two ends is greater than the aperture of mid portion, in each additional holes, wear additional steel strand 205, same, between these additional steel strand 205 and additional holes, adopt the connected mode being similar between release steel strand 302 and centre bore, additional steel strand 205 are by the 3rd front intermediate plate 204 and the clamping of the 3rd rear jaw, the 3rd front intermediate plate 204 and the 3rd rear jaw and bellmouth C fit tightly, so, can rely on the frictional force of the 3rd front intermediate plate 204 and the 3rd rear jaw will add steel strand 205 fixing with Connection Block 201.Additional steel strand 205 in this additional anchor section are generally shorter steel strand.In work progress, additional anchor section and anchoring section 100 are together imbedded in the soil body, for increasing the adhesive power of whole anchor pole and the soil body.
Corresponding, in cylindrical shell 101, there is one second fixed head 1012, on the second fixed head 1012, connect one second sideboard 202 by one second elastic mechanism 203, as preferably, the second elastic mechanism 203 adopts spring, one end of spring is against on the second fixed dam, and the other end is connected with the second sideboard 202, and the second sideboard 202 is posted by Connection Block 201 upper ends.
Shown in Fig. 5, in concrete application process, can be according to different soil properties and body of wall kind, flexible combination anchoring section 100, reaches the effect that increases and decreases pulling force.Concrete, multiple anchoring sections 100 are arranged in order, share release steel strand 302 and all working steel strand 301, but work steel strand 301 at this moment, some work steel strand 301 just run through at the first anchoring section 100, and at next or N anchoring section 100 fixing (fixing same employing said method is fixing with intermediate plate and latch segment 110), another part work steel strand 301 are fixing at first anchoring section 100, and run through on other anchoring sections 100, but not be all fixed on as described above on same or all anchoring sections 100.For example: distribute to an anchoring section 100 for every two or three, and fixing with said method intermediate plate and latch segment 110.Therefore anchoring section 100 numbers in parallel should be that work steel strand 301 numbers eliminate 2 or 3, and each like this anchoring section 100 is stressed identical.When release steel strand 302 are drawn out of, the release together of all anchoring sections 100, work steel strand 301 are also drawn out of together.
In sum, in the present invention, release is out from anchoring section 100 for steel strand 301 to utilize the principle of mechanical braking to work, realize the recovery of work steel strand 301, concrete, in use, the first front intermediate plate 106 and the first rear jaw are stung tight work steel strand 301 by frictional force, make work steel strand 301 can bear the pulling force needing, need to reclaim time, utilize the instruments such as jack to apply pulling force to release steel strand 302, in the middle of release steel strand 302 drag, slide core 105 is slided, the most at last, slide core 105 pulls out from pedestal 102, now, latch segment 110 comes off because of the support that has lost middle slide core 105, the first front intermediate plate 106, therefore the first rear jaw has lost the support of latch segment 110 and has become flexible, come off from work steel strand 301, so, 301 of steel strand of work can easily be extracted from pedestal 102, to reach the object of removing underground discarded work steel strand 301, obviously, the anchor pole of structure is in removal process, and required manpower is few, construction cost is low, convenient and swift, and energy-conserving and environment-protective, have larger application value.
The foregoing is only the preferred embodiments of the present invention; not thereby limit its scope of the claims; every equivalent structure or conversion of equivalent flow process that utilizes manual of the present invention and accompanying drawing content to do; directly or indirectly be used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a recoverable prestressed anchor pole, comprise free segment and anchoring section, it is characterized in that: described anchoring section comprise pedestal, with the detachable sleeve pipe being connected in pedestal upper end and with the detachable cylindrical shell being connected in pedestal lower end, on described pedestal, be provided with a centre bore along axis direction, described centre bore is distributed with a plurality of perimeter holes around, and described perimeter hole sidewall offers the mesopore communicating with described centre bore;
In described centre bore, be socketed with one slidably in the middle of slide core, described in the middle of slide core be fixedly connected with release steel strand; Described perimeter hole is made up of two coaxial and symmetrical bellmouth A, and the aperture at perimeter hole two ends is greater than the aperture of mid portion, in each described perimeter hole, wear work steel strand, described work steel strand are by the first front intermediate plate and the clamping of the first rear jaw, and described the first front intermediate plate and the first rear jaw and described bellmouth A fit tightly; In described mesopore, be filled with a latch segment, described latch segment and described the first front intermediate plate and/or the first rear jaw fit tightly.
2. recoverable prestressed anchor pole according to claim 1, it is characterized in that: in described cylindrical shell, there is one first fixed head, on described the first fixed head, connect one first sideboard by the first elastic mechanism, described the first sideboard is posted by described pedestal lower end.
3. recoverable prestressed anchor pole according to claim 1, is characterized in that: described sleeve pipe is threaded with described pedestal upper end by casing joint, and described cylindrical shell is threaded with described pedestal lower end.
4. recoverable prestressed anchor pole according to claim 1, it is characterized in that: in the middle of described, slide core is provided with connecting hole, described connecting hole is made up of two coaxial and symmetrical bellmouth B, and the aperture at connecting hole two ends is greater than the aperture of mid portion, described release steel strand are arranged in described connecting hole and by the second front intermediate plate and the clamping of the second rear jaw, described the second front intermediate plate and the second rear jaw and described bellmouth B fit tightly.
5. recoverable prestressed anchor pole according to claim 1, is characterized in that: the inner surface of described the first front intermediate plate, the first rear jaw is provided with for increasing first of between described work steel strand frictional force and increases the structure of rubbing.
6. recoverable prestressed anchor pole according to claim 4, is characterized in that: the inner surface of described the second front intermediate plate, the second rear jaw is provided with for increasing second of between described release steel strand frictional force and increases the structure of rubbing.
7. recoverable prestressed anchor pole according to claim 5, is characterized in that: described first to increase the structure of rubbing be graininess projection or screw thread.
8. recoverable prestressed anchor pole according to claim 6, is characterized in that: described second to increase the structure of rubbing be graininess projection or screw thread.
9. according to the recoverable prestressed anchor pole described in any one in claim 1 to 8, it is characterized in that: also comprise additional anchor section, described additional anchor section comprises the Connection Block of the lower end that is connected in cylindrical shell, on described Connection Block, be provided with vertically a plurality of additional holes, described additional holes is made up of two coaxial and symmetrical bellmouth C, and the aperture at additional holes two ends is greater than the aperture of mid portion, in each described additional holes, wear additional steel strand, described additional steel strand are by the 3rd front intermediate plate and the clamping of the 3rd rear jaw, described the 3rd front intermediate plate and the 3rd rear jaw and described bellmouth C fit tightly.
10. recoverable prestressed anchor pole according to claim 9, it is characterized in that: in described cylindrical shell, there is one second fixed head, on described the second fixed head, connect one second sideboard by one second elastic mechanism, described the second sideboard is posted by described Connection Block upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070962.XU CN203729298U (en) | 2014-02-18 | 2014-02-18 | Recyclable prestressed anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070962.XU CN203729298U (en) | 2014-02-18 | 2014-02-18 | Recyclable prestressed anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203729298U true CN203729298U (en) | 2014-07-23 |
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ID=51199383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420070962.XU Expired - Fee Related CN203729298U (en) | 2014-02-18 | 2014-02-18 | Recyclable prestressed anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203729298U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746516A (en) * | 2015-03-27 | 2015-07-01 | 钟景尧 | Mechanical unlocking steel rope used for supporting |
| CN108589698A (en) * | 2018-03-12 | 2018-09-28 | 上海建工集团股份有限公司 | Recyclable group's beam post-tensioning prestressing without bondn diaphram wall and construction method |
| CN108868842A (en) * | 2018-07-26 | 2018-11-23 | 武汉工程大学 | A kind of recyclable high pre-stress constant-resistance anchor pole locking device |
| CN109024570A (en) * | 2018-06-05 | 2018-12-18 | 上海建工集团股份有限公司 | Recyclable group's beam post-tensioning prestressing without bondn drill-pouring supporting pile structure and method |
| CN111706086A (en) * | 2020-06-19 | 2020-09-25 | 威胜利工程有限公司 | Clamping piece mounting auxiliary |
-
2014
- 2014-02-18 CN CN201420070962.XU patent/CN203729298U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746516A (en) * | 2015-03-27 | 2015-07-01 | 钟景尧 | Mechanical unlocking steel rope used for supporting |
| CN108589698A (en) * | 2018-03-12 | 2018-09-28 | 上海建工集团股份有限公司 | Recyclable group's beam post-tensioning prestressing without bondn diaphram wall and construction method |
| CN109024570A (en) * | 2018-06-05 | 2018-12-18 | 上海建工集团股份有限公司 | Recyclable group's beam post-tensioning prestressing without bondn drill-pouring supporting pile structure and method |
| CN108868842A (en) * | 2018-07-26 | 2018-11-23 | 武汉工程大学 | A kind of recyclable high pre-stress constant-resistance anchor pole locking device |
| CN111706086A (en) * | 2020-06-19 | 2020-09-25 | 威胜利工程有限公司 | Clamping piece mounting auxiliary |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20140723 Termination date: 20190218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |