CN201801862U - Anchoring piece provided with bushing - Google Patents
Anchoring piece provided with bushing Download PDFInfo
- Publication number
- CN201801862U CN201801862U CN2010202980711U CN201020298071U CN201801862U CN 201801862 U CN201801862 U CN 201801862U CN 2010202980711 U CN2010202980711 U CN 2010202980711U CN 201020298071 U CN201020298071 U CN 201020298071U CN 201801862 U CN201801862 U CN 201801862U
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- dowel
- anchoring piece
- anchor bar
- anchoring
- Prior art date
- 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.)
- Expired - Lifetime
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Abstract
An anchoring piece provided with a bushing comprises an anchor bar, the front end of the anchor bar penetrates through an anchoring plate, the bushing is pressed on the anchor bar on the outer side of the anchoring plate, and the bushing is pressed on the anchor bar through cold extruding. The anchoring piece provided by the utility model has the advantages that the structure is simple; and the reclamation is convenient after anchoring construction, specifically, the anchor bar can be pulled out and reclaimed only when the pulling force exerted on the anchor bar is greater than the friction force on the anchor bar.
Description
Technical field
The utility model relates to the geotechnical engineering technical field, concrete relates to a kind of anchoring piece that weak rock-reinforcing and supporting are used, and this anchoring piece end has sleeve pipe.
Background technology
In the weak rocks soil layer, build underground installation, because the loose crushing of ground system makes that they self intensity and stability are very poor, so need reinforce and supporting this soft layer.Cement paste is become mixture with weak ground rotary jet stirring, and insert dowel formation anchor structure, can fully increase the self-supporting ability of weak ground, reduce support material cost and reduction of erection time greatly.
But the mode that this active is reinforced often is limited to use because of exceeding the building land scope, and needs to remove for the anchoring body of interim reinforcing.Produce obstacle will for later mankind's activities such as building operations if do not remove, if these dowels safety after the purpose that reaches reinforcing and supporting can be taken out, just do not go out in the soil layer that is reinforced to stay obstruction, then can be so that this kind reinforcing and supporting method can be applied in the more wide scope.So-called safety is taken out, and promptly is that dowel safety is extracted, and constantly stays, and reinforcement system and underground building is not produced disturbance and destruction when extracting.Therefore in the geotechnical engineering, be badly in need of a kind of anchoring piece that can reclaim dowel.
The utility model content
Technical problem to be solved in the utility model is, overcomes problems of the prior art, and a kind of anchoring piece that has sleeve pipe is provided, and this anchoring piece is simple in structure, and the dowel in the enough anchoring pieces of construction can reclaim smoothly.
In order to address the above problem the technical solution of the utility model is such:
A kind of anchoring piece that has sleeve pipe comprises a dowel, and the front end of dowel passes a form anchor, is suppressed with a sleeve pipe on the dowel in the form anchor outside.
Described dowel is the wherein a kind of of steel strand, wire rope, reinforcing bar.
Described sleeve pipe is compressed on the dowel by cold extrusion.
The casing profile profile is circle or polygon.
Sleeve outer wall is provided with the extruding trace.
Internal surface of sleeve pipe is provided with the lines that increases frictional resistance.
The internal diameter of described sleeve pipe is 2mm-150mm; The wall thickness of sleeve pipe is 1mm-50mm; The length of sleeve pipe is 10mm-500mm.
Beneficial effect, the anchoring piece that has sleeve pipe described in the utility model, simple in structure, can reclaim easily behind the anchoring construction, as long as be applied to pulling force on the dowel, dowel can be pulled out recovery greater than the frictional resistance of sleeve pipe to dowel.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the anchoring piece combining structure schematic diagram that has sleeve pipe described in the utility model;
Fig. 2 is an anchoring piece extrusion equipment structural representation described in the utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1
In being connected of dowel 1 and form anchor 2, the front end of dowel 1 passes form anchor 2, is suppressed with a sleeve pipe 3 on the dowel 1 in form anchor 2 outsides.Dowel 1 passes form anchor by the dowel hole that is arranged on the form anchor 2, and the external diameter of sleeve pipe 3 is greater than the diameter in dowel hole on the form anchor 1, and when sleeve pipe 3 pressed together with dowel 1, dowel 1 just can not be deviate from from form anchor 2.
The maximum frictional resistance method of 3 pairs of dowels 1 of control sleeve pipe is: dowel 1 is passed form anchor 2 ends put sleeve pipe 3, adopt special cold extrusion equipment (referring to Fig. 2) then, sleeve pipe 3 whole outer surface are applied uniform extruding force, make sleeve pipe 3 distortion, contact with the dowel body.Material property by changing sleeve pipe 3, with contact length, the pipe thickness of dowel and the extruding force that applies, can control the maximum frictional resistance between steel sleeve and the dowel body.
Described dowel 1 is the wherein a kind of of steel strand, wire rope, reinforcing bar.
Described sleeve pipe 3 is compressed on the dowel 1 by cold extrusion.The processing method that cold extrusion promptly adopts a kind of cold extrusion equipment to carry out.
The internal diameter of described sleeve pipe 3 is 2mm-150mm; The wall thickness of sleeve pipe 3 is 1mm-50mm; The length of sleeve pipe 3 is 10mm-500mm.
When needs dowel 1 reclaims, the end of dowel 1 is applied pulling force, when the recovery pulling force that applies during greater than the maximum frictional resistance between sleeve pipe and the dowel 1, dowel 1 just breaks away from from form anchor, thereby dowel is extracted out from anchoring body.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the manual just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. an anchoring piece that has sleeve pipe comprises a dowel, and the front end of dowel passes a form anchor, it is characterized in that, is suppressed with a sleeve pipe on the dowel in the form anchor outside.
2. a kind of anchoring piece that has sleeve pipe according to claim 1 is characterized in that, described dowel is the wherein a kind of of steel strand, wire rope, reinforcing bar.
3. a kind of anchoring piece that has sleeve pipe according to claim 2 is characterized in that described sleeve pipe is compressed on the dowel by cold extrusion.
4. a kind of anchoring piece that has sleeve pipe according to claim 3 is characterized in that the casing profile profile is circle or polygon.
5. a kind of anchoring piece that has sleeve pipe according to claim 4 is characterized in that sleeve outer wall is provided with the extruding trace.
6. a kind of anchoring piece that has sleeve pipe according to claim 5 is characterized in that, internal surface of sleeve pipe is provided with the lines that increases frictional resistance.
7. a kind of anchoring piece that has sleeve pipe according to claim 1 is characterized in that the internal diameter of described sleeve pipe is 2mm-150mm; The wall thickness of sleeve pipe is 1mm-50mm; The length of sleeve pipe is 10mm-500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202980711U CN201801862U (en) | 2010-08-19 | 2010-08-19 | Anchoring piece provided with bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202980711U CN201801862U (en) | 2010-08-19 | 2010-08-19 | Anchoring piece provided with bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201801862U true CN201801862U (en) | 2011-04-20 |
Family
ID=43871369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202980711U Expired - Lifetime CN201801862U (en) | 2010-08-19 | 2010-08-19 | Anchoring piece provided with bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201801862U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452324A (en) * | 2013-09-18 | 2013-12-18 | 天津鑫坤泰预应力专业技术有限公司 | Threader for finished steel strand bundle |
| CN106677177A (en) * | 2017-01-10 | 2017-05-17 | 上海强劲地基工程股份有限公司 | Anchoring part with recyclable anchor bars |
-
2010
- 2010-08-19 CN CN2010202980711U patent/CN201801862U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452324A (en) * | 2013-09-18 | 2013-12-18 | 天津鑫坤泰预应力专业技术有限公司 | Threader for finished steel strand bundle |
| CN106677177A (en) * | 2017-01-10 | 2017-05-17 | 上海强劲地基工程股份有限公司 | Anchoring part with recyclable anchor bars |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110420 |
|
| CX01 | Expiry of patent term |