CN203730032U - Expansion anchor rod capable of inversely hooking surrounding rock - Google Patents
Expansion anchor rod capable of inversely hooking surrounding rock Download PDFInfo
- Publication number
- CN203730032U CN203730032U CN201420046673.6U CN201420046673U CN203730032U CN 203730032 U CN203730032 U CN 203730032U CN 201420046673 U CN201420046673 U CN 201420046673U CN 203730032 U CN203730032 U CN 203730032U
- Authority
- CN
- China
- Prior art keywords
- barb
- rod
- sleeve
- short sleeve
- arc
- 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
Links
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model provides an expansion anchor rod capable of inversely hooking surrounding rock. The expansion anchor rod is composed of a rod and a long sleeve, wherein the rod penetrates in the long sleeve, the head of the rod is sequentially provided with a gasket, a seal tray and a nut, the center of the rod is provided with a grouting pipe penetrating through the rod, the tail of the rod is provided with a barb which is connected with the rod through an connection arc at the bottom of the barb, the barb is provided with two or more barb gaps for dividing the barb into a plurality of parts, the depth of each barb gap and the length of the barb are consistent, the inner side of the end of the barb is provided with a barb expansion arc, and the radian of the barb expansion arc and the radian of a barb compensation arc arranged on the outer edge of the tail of the long sleeve are consistent. The tail of the rod is further provided with a short sleeve penetrating through the tail of the rod in a sleeved mode, the inner diameter of the short sleeve is equal to the diameter of the rod, the outer diameter of the short sleeve is larger than the inner diameter of the long sleeve and smaller than the inner diameter of the barb, the tail of the short sleeve is provided with two or more short sleeve gaps, and the length of each short sleeve is smaller than the length of the short sleeve.
Description
Technical field
The utility model is that a kind of rock mass support arranges anchor pole, and especially a kind of expansion can barb country rock formula anchor pole.
Background technology
Along with more and more constructions of underground construction, it is particularly important that its supporting seems, anchor pole, because its supporting effect is good, economic and practical, and is used as conventional support apparatus.
In order to increase the contact force of anchor pole and country rock, improve supporting effect, various dilatancy anchor poles arise at the historic moment, but most dilatancy anchor pole is only push country rock by expansions, the pressure of the increase body of rod and country rock and play the effect of increase support anchoring power.Once but anchor pole is subject to longitudinally outside pressure, and pressure is while being greater than the frictional force that anchor pole provides, anchor pole just loses effect completely.
Summary of the invention
The utility model is that expand can barb country rock formula anchor pole, formed by the body of rod and long sleeve, the body of rod is in long sleeve, body of rod head is provided with pad successively, sealing pallet and nut, be provided with the Grouting Pipe that connects the body of rod in body of rod center, be provided with barb at body of rod afterbody, barb connects arc by barb base and is connected with the body of rod, on barb, be provided with two or more barb seam barb is divided into multiple parts, the degree of depth of barb seam is consistent with barb length, inner side, barb end is provided with barb expansion arc, barb expansion arc is with to be located at the outer peripheral barb of long sleeve afterbody compensation arc radian consistent.Also be provided with short sleeve at body of rod afterbody, short sleeve is set in body of rod afterbody, and the internal diameter of short sleeve equals body of rod diameter, and the internal diameter that the external diameter of section sleeve is greater than long sleeve is less than barb internal diameter, the afterbody of short sleeve is provided with two or more short sleeve seams, and short sleeve seam length is less than the length of short sleeve.
The beneficial effects of the utility model are: after the utility model is installed on and needs the rock body drilled of anchoring slip casting to solidify, can make the body of rod with respect to long sleeve side shifting outside rock mass by fastening nut, barb also can outwards move simultaneously, barb expansion arc and barb compensation arc can be in contact with one another, continue in rundown process at nut, barb can because barb compensates the obstruction of arc, swelling cracking can hook country rock after barb swelling cracking, thereby reaches the effect that produces good anchored force.The utility model structure is succinct, and manufacture process and installation process are all very simple, with low cost, and have good anchoring effect.
Using method of the present utility model is: first short sleeve is placed on the body of rod, and short sleeve seam connects arc direction towards barb base, then long sleeve is placed on the body of rod, and the direction that compensates arc with barb, towards the short sleeve having packaged, is then installed pad, sealing pallet and nut successively.Short sleeve can ensure not contact with barb compensation arc at original state barb expansion arc, nut screwing clamping to a certain extent after, barb base connects arc can force short sleeve seam to open, the body of rod just can outwards move, barb expansion arc just can contact with barb compensation arc, can avoid like this barb premature expansion cracking, be beneficial to the utility model and install in boring.
Brief description of the drawings
Fig. 1 elevation of the present utility model
Fig. 2 long sleeve sectional drawing
Fig. 3 short sleeve elevation
Fig. 4 body of rod sectional drawing
Fig. 5 A-A sectional view
Reference numeral:
1 body of rod, 2 nuts, 3 sealing pallets, 4 pads, 5 long sleeves, 6 barbs, 7 short sleeve seams, 8 short sleeves, 9 barb compensation arcs, 10 barb seams, 11 barb base connect arc, 12 Grouting Pipe, 13 barb expansion arcs.
Detailed description of the invention
With reference to the accompanying drawings, expansion can barb country rock formula anchor pole, formed by the body of rod 1 and long sleeve 5, the body of rod 1 is in long sleeve 5, the body of rod 1 head is provided with pad 4 successively, sealing pallet 3 and nut 2, be provided with the Grouting Pipe 12 that connects the body of rod in the body of rod 1 center, be provided with barb 6 at the body of rod 1 afterbody, barb 6 connects arc 11 by barb base and is connected with the body of rod 1, on barb 6, be provided with two or more barb seam 10 barb 6 is divided into multiple parts, the degree of depth of barb seam 10 is consistent with barb 6 length, barb 6 inner sides, end are provided with barb expansion arc 13, barb expansion arc 13 is with to be located at the outer peripheral barb of long sleeve afterbody compensation arc 9 radians consistent, also be provided with short sleeve 8 at the body of rod 1 afterbody, short sleeve 8 is set in the body of rod 1 afterbody, the internal diameter of short sleeve 8 equals the body of rod 1 diameter, the internal diameter that the external diameter of section sleeve 8 is greater than long sleeve 5 is less than barb 6 internal diameters, the afterbody of short sleeve 8 is provided with two or more short sleeve seams 7, short sleeve stitches the length that 7 length are less than short sleeve 8.
As improvement, in order to make barb swelling cracking even, the preferred amount of barb seam 10 is four, and the angle that adjacent two barbs stitch between 10 is 90 degree.
As improvement, in order to make short sleeve bring into play better effect, short sleeve stitches 7 length and is preferably 1/2nd of short sleeve 8 length, and quantity is preferably four, and the angle that adjacent two short sleeves stitch between 8 is 90 degree.
Claims (3)
1. expanding can barb country rock formula anchor pole, formed by the body of rod (1) and long sleeve (5), the body of rod (1) is in long sleeve (5), the body of rod (1) head is provided with pad (4) successively, sealing pallet (3) and nut (2), be provided with the Grouting Pipe (12) that connects the body of rod in the body of rod (1) center, be characterised in that: be provided with barb (6) at the body of rod (1) afterbody, barb (6) connects arc (11) by barb base and is connected with the body of rod (1), on barb (6), be provided with two or more barb seam (10) barb (6) is divided into multiple parts, the degree of depth of barb seam (10) is consistent with barb (6) length, inner side, barb (6) end is provided with barb expansion arc (13), barb expansion arc (13) is with to be located at the outer peripheral barb of long sleeve afterbody compensation arc (9) radian consistent, also be provided with short sleeve (8) at the body of rod (1) afterbody, short sleeve (8) is set in the body of rod (1) afterbody, the internal diameter of short sleeve (8) equals the body of rod (1) diameter, the internal diameter that the external diameter of section sleeve (8) is greater than long sleeve (5) is less than barb (6) internal diameter, the afterbody of short sleeve (8) is provided with two or more short sleeve seams (7), short sleeve seam (7) length is less than the length of short sleeve (8).
2. expansion as claimed in claim 1 can barb country rock formula anchor pole, it is characterized in that: the quantity of barb seam (10) is four, and angle between adjacent two barbs seams (10) is 90 degree.
3. expansion as claimed in claim 1 can barb country rock formula anchor pole, it is characterized in that: short sleeve seam (7) length is 1/2nd of short sleeve (8) length, and quantity is four, and angle between adjacent two short sleeves seams (8) is 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046673.6U CN203730032U (en) | 2014-01-25 | 2014-01-25 | Expansion anchor rod capable of inversely hooking surrounding rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046673.6U CN203730032U (en) | 2014-01-25 | 2014-01-25 | Expansion anchor rod capable of inversely hooking surrounding rock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730032U true CN203730032U (en) | 2014-07-23 |
Family
ID=51200112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420046673.6U Expired - Fee Related CN203730032U (en) | 2014-01-25 | 2014-01-25 | Expansion anchor rod capable of inversely hooking surrounding rock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730032U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726861A (en) * | 2014-01-25 | 2014-04-16 | 山东科技大学 | Expandable inverted hook rock-surrounding type anchor rod |
| CN108179743A (en) * | 2018-02-09 | 2018-06-19 | 浙江大学城市学院 | A kind of synchronous grouting pile for prestressed pipe and construction method |
-
2014
- 2014-01-25 CN CN201420046673.6U patent/CN203730032U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726861A (en) * | 2014-01-25 | 2014-04-16 | 山东科技大学 | Expandable inverted hook rock-surrounding type anchor rod |
| CN108179743A (en) * | 2018-02-09 | 2018-06-19 | 浙江大学城市学院 | A kind of synchronous grouting pile for prestressed pipe and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204457826U (en) | A kind of expansion antiskid anchor pole | |
| CN107620603B (en) | Novel grouting anchor rod with steel loop bar | |
| CN110410123B (en) | Novel high-strength anchor rod supporting equipment for coal mine | |
| CN108035753B (en) | A kind of Anchor Agent leakproof orientation method | |
| CN104165799B (en) | A kind of anchoring counterforce device for grinding coagulation soil in-situ anti-shear test | |
| CN103557012B (en) | A kind of roadway with large deformation wall rock grouting fastening carrying structure and construction method | |
| CN203730032U (en) | Expansion anchor rod capable of inversely hooking surrounding rock | |
| RU2014145891A (en) | EXPANDING RING INSULATING DEVICE | |
| CN103696792A (en) | Multi-stage conical synchronous expansion anchor rod | |
| CN103670469A (en) | Expansion grouting anchor rod | |
| CN205135681U (en) | Flexible pin locking formula stock | |
| CN203515345U (en) | Threaded-connection gas lift reverse-circulation double-wall drill pipe | |
| CN210264776U (en) | Self-sealing type anchor cable for sectional grouting | |
| CN103726861A (en) | Expandable inverted hook rock-surrounding type anchor rod | |
| CN204267057U (en) | A kind of nested type pipe seam anchor bar | |
| CN105443150A (en) | Self-drilling anchor rod capable of rapidly mounting | |
| CN203685240U (en) | Multi-stage conical synchronous expansion anchoring rod | |
| CN203603941U (en) | Expansion grouting type anchor rod | |
| CN102748047A (en) | Expansion-shell anchor rope | |
| CN112983519B (en) | High-pretightening-force anchor rod capable of actively and rapidly realizing three-dimensional stress balance and anchoring method thereof | |
| CN102182481A (en) | Anchor rope grouting-stop plug | |
| CN104564115A (en) | Sleeve-type inside anchor | |
| CN204663480U (en) | A kind of roadway floor anchor cable hole injection hole sealing device | |
| CN104165800A (en) | Expandable bolt for roller compacted concrete in-situ shear test | |
| CN209261605U (en) | Anchor Agent centering conveying device |
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: 20140723 Termination date: 20150125 |
|
| EXPY | Termination of patent right or utility model |