CN201981705U - Conical self-anchoring device - Google Patents
Conical self-anchoring device Download PDFInfo
- Publication number
- CN201981705U CN201981705U CN2010206831186U CN201020683118U CN201981705U CN 201981705 U CN201981705 U CN 201981705U CN 2010206831186 U CN2010206831186 U CN 2010206831186U CN 201020683118 U CN201020683118 U CN 201020683118U CN 201981705 U CN201981705 U CN 201981705U
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- CN
- China
- Prior art keywords
- self
- anchor
- anchorage
- anchoring device
- 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 - Fee Related
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Abstract
The utility model discloses a conical self-anchoring device, which comprises a self-anchoring screw nut. The self-anchoring screw nut is in a cone frustum shape. The self-anchoring device further comprises a protective sleeve, expansion grooves are arranged on the protective sleeve along the circular periphery and divide the protective sleeve into expansion valves and protective sleeve rings, and the expansion valves are connected with the cone frustum of the self-anchoring screw nut. The conical self-anchoring device has simple structure and is connected to the bottom of an anchor rod so as to greatly improve an anchorage force of the anchor rod, material performance of the anchor rod can be sufficiently shown only by utilizing the conical self-anchoring device, if a certain anchor section is increased by utilizing anchor colloid materials, security coefficient of the self-anchoring device can be increased. Anchorage length of the anchor rod is reduced, prestress safety stock of an anchorage end is improved, and the anchorage end has a function similar to the function of prestress wires, thereby avoiding anchorage zone damage caused by excess tensile strength of partial anchorage sections.
Description
Technical field
The utility model belongs to the anchor structure of anchor pole, and the taper that is specifically related to a kind of anchoring is from the anchor ground tackle.
Background technology
Existing building, as the anchorage element of employings such as bridge, promptly the anchor pole bottom anchor generally adopts the grouting material directly to carry out anchoring, anchorage length is substantially more than 4m, prestressing force very easily loses, and the anchored end safety stock is less, and the long anchorage zone that causes of anchoring section is tensile stress state.
Summary of the invention
The purpose of this utility model is to provide a kind of and is used for the taper of anchor pole bottom from the anchor ground tackle, to address the above problem.
The technical solution of the utility model is: taper is from the anchor ground tackle, and it comprises from the anchor nut, is the frustum of a cone from the profile of anchor nut, it also comprises sheath, sheath offers the expanding groove along circumference, expanding lobe and sheath ring that the expanding groove is cut apart sheath, and the expanding lobe is connected with the frustum of a cone from the anchor nut.
The inwall of described expanding lobe is the conical surface, matches with the frustum of a cone side from the anchor nut.
This taper is simple in structure from the anchor ground tackle, connect and the anchor pole bottom, anchor pole is carried out the anchored force that anchoring has improved anchor pole greatly, only just the material property of anchor pole can be fully played from the anchor ground tackle with taper, re-using the anchoring colloidal materials increases certain anchoring section, more can strengthen the safety factor from the anchor anchoring.Shorten anchoring section length, improve anchored end prestressing force safety stock, and allow anchored end be similar to the effect of P anchor prestress wire, excessive and cause anchorage zone to destroy to avoid the local tensile stress of anchoring section.
Description of drawings
Fig. 1 taper is from anchor ground tackle schematic diagram.
Fig. 2 is from anchor nut schematic diagram.
Fig. 3 sheath schematic diagram.
The specific embodiment
As shown in Figure 1, sheath 1 is enclosed within on the bottom of finish rolling deformed bar anchor pole 3, is threaded with finish rolling deformed bar anchor pole 3 from anchor nut 2.
As shown in Figure 1, 2, be the frustum of a cone from the profile of anchor nut 2, the centre is the screwed hole 2.2 that is connected with finish rolling deformed bar anchor pole 3.
As shown in Figure 3, sheath 1 offers expanding groove 1.1 along circumference, expanding lobe 1.2 and sheath ring 1.3 that expanding groove 1.1 is cut apart sheath, and in the present embodiment, the expanding lobe 1.2 that expanding groove 1.1 is cut apart has 6 lobes.The inwall of expanding lobe 1.2 is the conical surface 1.4, matches with the frustum of a cone side 2.1 from the anchor nut.
Taper is suitable from the operating principle from anchor principle and expansion bolt of anchor ground tackle, mainly at the bottom of the hole, leave the back taper hole in advance, its inwall and tapered cup nut constitute machinery from anchor after sheath moves down expansion, and forming desirable wedge key with back taper concrete hole face, its outer wall is connected, thereby can be fast and effectively tapered cup nut and the smart screw-thread steel of pricking be linked into an integrated entity, and in the bottom from anchor.
During construction, the tapered cup nut 2 of taper from the anchor ground tackle is installed on the finish rolling deformed bar anchor pole 3, and sheath 1 is installed on the tapered cup nut 2, the essence that will install ground tackle with loop wheel machine after installation is pricked screw-thread steel and is put into the hole, and anchor head is down.
Second step: as shown in Figure 1, (external diameter is φ 70mm with afterburning sleeve 4, internal diameter is the steel pipe of φ 58mm) overlap from the anchor pole top to the bottom, the cover tube bottom contacts with sheath 1 top of taper from the anchor ground tackle, upper cartridge is exposed about 1m outside the hole, by the sleeve exposed junction sleeve is pressurizeed, make sheath 1 move down and expand along the male cone (strobilus masculinus) of tapered cup nut 2, tight until anchor, moving down distance is controlled at about 50mm, avoid sheath to break, the sheath that dilates in the anchor pole end opens after anchor compressive sleeve is hung out in the hole.
Claims (2)
1. a taper is from the anchor ground tackle, and it comprises from the anchor nut, it is characterized in that the profile from the anchor nut is the frustum of a cone, it also comprises sheath, sheath offers the expanding groove along circumference, expanding lobe and sheath ring that the expanding groove is cut apart sheath, and the expanding lobe is connected with the frustum of a cone from the anchor nut.
2. taper is from the anchor ground tackle according to claim 1, and the inwall that it is characterized in that the expanding lobe is the conical surface, matches with the frustum of a cone side from the anchor nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206831186U CN201981705U (en) | 2010-12-28 | 2010-12-28 | Conical self-anchoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206831186U CN201981705U (en) | 2010-12-28 | 2010-12-28 | Conical self-anchoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201981705U true CN201981705U (en) | 2011-09-21 |
Family
ID=44609168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206831186U Expired - Fee Related CN201981705U (en) | 2010-12-28 | 2010-12-28 | Conical self-anchoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201981705U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563109A (en) * | 2015-01-29 | 2015-04-29 | 武汉武大巨成结构股份有限公司 | Improved sleeve type inner anchor head |
| CN104564115A (en) * | 2015-01-29 | 2015-04-29 | 武汉武大巨成结构股份有限公司 | Sleeve-type inside anchor |
| CN105986572A (en) * | 2015-03-01 | 2016-10-05 | 方军 | Self-locking type pull-resisting anchor head |
-
2010
- 2010-12-28 CN CN2010206831186U patent/CN201981705U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563109A (en) * | 2015-01-29 | 2015-04-29 | 武汉武大巨成结构股份有限公司 | Improved sleeve type inner anchor head |
| CN104564115A (en) * | 2015-01-29 | 2015-04-29 | 武汉武大巨成结构股份有限公司 | Sleeve-type inside anchor |
| CN105986572A (en) * | 2015-03-01 | 2016-10-05 | 方军 | Self-locking type pull-resisting anchor head |
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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: 20110921 Termination date: 20191228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |