CN201412175Y - Inverted-gun barbed nail hollow grouting anchor bar - Google Patents
Inverted-gun barbed nail hollow grouting anchor bar Download PDFInfo
- Publication number
- CN201412175Y CN201412175Y CN2009201549148U CN200920154914U CN201412175Y CN 201412175 Y CN201412175 Y CN 201412175Y CN 2009201549148 U CN2009201549148 U CN 2009201549148U CN 200920154914 U CN200920154914 U CN 200920154914U CN 201412175 Y CN201412175 Y CN 201412175Y
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- anchor bar
- inverted
- anchor
- gun
- hollow grouting
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Abstract
The utility model relates to the technical field of supporting, in particular to an inverted-gun barbed nail hollow grouting anchor bar adopted in underground of mine, roof bolts and side anchors of tunnels, roads, railways and building construction; and the problems to be solved are as follows: the hollow grouting screw anchor bar is easy to fall when an anchor hole is pressed by grouting, wastesmaterials and increases labor intensity of operators. The anchor bar technology mainly comprises inverted-gun barbed nails, an anchor bar body, a tongue-shaped pressure spring and the like. The inverted-gun barbed nails are uniformly distributed on and hinged with the upper end of the anchor rod body; the tongue-shaped pressure spring is fixed on an embedding cylinder of the upper end of an innercavity of the anchor bar; and the upper end of the tongue-shaped pressure spring is matched with the bottom surfaces of the inverted-gun barbed nails.
Description
Technical field
The utility model relates to the support technology field, particularly a kind of inverted gun thorn nail hollow grouting anchor that is adopted in down-hole, mine, top, tunnel anchor group anchor, highway, railway, the building operations.
Background technology
What adopted in down-hole, present most of mine, tunnel, highway, railway, the building operations is " hollow slip casting spiral anchor rod " technology.This anchor pole technology is to rely on the hollow tube external surface to be welded with left-handed muscle extruding anchor hole crag expansive force to fix anchor bar body.The deficiency of this technology is that the diameter of anchor pole is constant, owing to can not self adjust the shortcoming of its diameter expansive force technology in construction, great majority are easy to make anchor pole to split away off from anchor hole when being subjected to grouting pump pressure.Anchor pole after coming off, the constructor must take other method to come from newly installing and fixing anchor pole.Strengthen site operation personnel's labour intensity once more, caused temporal waste that construction speed is affected.Owing to revolve the welding steel bar on outer tube surface on " hollow slip casting spiral anchor rod " body of rod, reach the big waste on the material that caused.Therefore " hollow slip casting spiral anchor rod " is existing easily should be solved with the problem that increases labour intensity completely from anchor hole obscission and waste raw material.
The utility model content
Problem to be solved in the utility model is that existing " hollow slip casting spiral anchor rod " easily comes off when being subjected to grouting pressure in anchor hole and waste raw material and the labour intensity problem that increases the operating personnel.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of inverted gun thorn nail hollow grouting anchor is provided.It is made up of inverted gun thorn nail and anchor bar body and tongue type stage clip.Described inverted gun thorn nail is evenly distributed on described anchor bar body upper end, is hinged with described anchor bar body upper end, and described tongue type stage clip is fixed on the described anchor bar body inner chamber upper end interlocking cylinder.Described tongue stage clip upper end matches with described inverted gun thorn nail bottom surface.
Present technique is compared with existing technology, because design has inverted gun thorn nail at the anchor pole upper end, its beneficial effect is that the above inverted gun thorn nail of inverted gun thorn nail hollow grouting anchor can be according to the diameter of bolthole and opening and closing.The opening and closing diameter of inverted gun thorn nail is that existing " hollow slip casting spiral anchor rod " diameter is more than 1 times.The technology of only advancing not move back has solved existing " hollow slip casting spiral anchor rod " completely and has come off when being subjected to grouting pressure and free spillout technique problem.It is firm more that the big more inverted gun thorn nail of " inverted gun thorn nail hollow grouting anchor " pressure when pressurized is hung, and is directly proportional with pressure.When the inverted gun thorn of anchor pole nail embeds in the rock crevice, the prestressing nut torque is increased, conveniently promote pallet and stop grouting plug moves upward, the bolthole on the crag that can make the tight shutoff of stop grouting plug.Pallet has disperseed crag prestressing force simultaneously.After tightening, prestressing nut can begin slip casting.Cement mortar under the pressure of grouting pump through hollow tube, exhaust injected hole to around draw together diffusing.Cement paste is injected into rock fracture depth zone freezing.The described inverted gun thorn nail hollow grouting anchor body of rod has been economized raw material for the polished rod body segment.
Description of drawings
Accompanying drawing is an inverted gun thorn nail hollow grouting anchor structural representation sketch.
The specific embodiment
Provide the preferential embodiment of the utility model below in conjunction with accompanying drawing, it is made up of anchor rod body 6, inverted gun thorn nail 1 and tongue type stage clip 3.Rectangle groove mouth 12 and convex body 13 have been cut in termination, described anchor rod body 6 top; Be drilled with exhaust injected hole 5 on the described anchor bar body 6, described anchor bar body 6 bottoms and 7 solid weldings of half screw thread thick-walled pipe are with stop grouting plug 8 and butterfly type pallet 9 and prestressing nut 10 on the half screw thread thick-walled pipe 7.It is three that described inverted gun thorn is followed closely 1 quantity, and the upper surface is provided with a circular hole 11, is installed with a reinforcing bar axle 2 in the circular hole 11 and curves a circle joint solid welding.Described inverted gun thorn nail 1 equidistantly distributes axial connection and cooperatively interacts on axle 2, make equidistant inverted gun thorn nail 1 and the equidistant groove 12 of anchor bar body 6 upper ends of stating match.Cylindrical press spring base 4 upper surfaces are housed in the chamber, described anchor bar body 6 upper end to be drilled with equidistant circular hole and to be embedded with ligulate stage clip 3 and to lean out from the groove internal upper part, column type press spring base 4 and described anchor bar body 6 interlocking solid weldings.After described inverted gun thorn nail 1 matched with rectangle matrix notch 12, inverted gun thorn nail axle 2 joined and solid welding with anchor bar body 6 upper end convex seats 13, and described inverted gun thorn nail 1 is hinged with described anchor rod body 6 upper ends.Described inverted gun thorn is followed closely 1 bottom surface and is matched with tongue type stage clip 3 upper ends that lean out and form the opening and closing point.The required main material of inverted gun thorn nail hollow grouting anchor manufacturing technology: steel plate, iron pipe, steel wire, rubber etc.During use anchor pole is inserted in the anchor hole, tighten prestressing nut 10 after shifting the position onto, pallet has headed on the stop grouting plug shutoff bolthole on the crag.Described anchor bar body 6 lower ends are connected with Grouting Pipe, and slurry is extruded through exhaust injected hole 5 by described anchor bar body 6 inner chambers during slip casting, to around the country rock slit draw together diffusing.Along with grouting pressure increases, pressure passes to the described inverted gun thorn in described anchor bar body 6 upper ends and follows closely on the 1 acute angle termination, the acute angle termination is stabbed in the crag and has kept the stability of described anchor bar body 6 when slip casting.When slurry slip casting when notes crag surface gaps is oozed out is finished.
Claims (2)
1, a kind of inverted gun thorn nail hollow grouting anchor, it is by except that having anchor bar body, it is characterized in that: also have inverted gun thorn nail and tongue type stage clip to form, described inverted gun thorn nail is evenly distributed on described anchor bar body upper end, be hinged with described anchor bar body upper end, described tongue type stage clip is fixed on the described anchor bar body inner chamber upper end interlocking cylindrical seat, matches with described inverted gun thorn nail bottom surface in described tongue type stage clip upper end.
2, according to the described inverted gun thorn nail of claim 1 hollow grouting anchor, it is characterized in that: described inverted gun thorn nail quantity is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201549148U CN201412175Y (en) | 2009-05-02 | 2009-05-02 | Inverted-gun barbed nail hollow grouting anchor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201549148U CN201412175Y (en) | 2009-05-02 | 2009-05-02 | Inverted-gun barbed nail hollow grouting anchor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412175Y true CN201412175Y (en) | 2010-02-24 |
Family
ID=41714061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201549148U Expired - Fee Related CN201412175Y (en) | 2009-05-02 | 2009-05-02 | Inverted-gun barbed nail hollow grouting anchor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201412175Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418536A (en) * | 2012-01-10 | 2012-04-18 | 中国矿业大学 | Large-aperture pretension base plate hollow grouting device |
| CN103615272A (en) * | 2013-11-07 | 2014-03-05 | 山东交通学院 | Hollow anchor rod with rebar framework and construction method of hollow anchor rod |
| CN103696790A (en) * | 2013-02-19 | 2014-04-02 | 裴春光 | Shear type expansion anchor rod and application thereof |
| CN104675419A (en) * | 2013-12-02 | 2015-06-03 | 张弘 | Cylindrical pocket type anchor rod fixing structure |
| CN110670599A (en) * | 2019-09-09 | 2020-01-10 | 中冶交通建设集团有限公司 | Hollow grouting prestressed anchor rod and construction method thereof |
| CN111379581A (en) * | 2020-03-24 | 2020-07-07 | 淮南东华欧科矿山支护设备有限责任公司 | Deep roadway prestress full-anchor support construction equipment and construction method thereof |
-
2009
- 2009-05-02 CN CN2009201549148U patent/CN201412175Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418536A (en) * | 2012-01-10 | 2012-04-18 | 中国矿业大学 | Large-aperture pretension base plate hollow grouting device |
| CN103696790A (en) * | 2013-02-19 | 2014-04-02 | 裴春光 | Shear type expansion anchor rod and application thereof |
| CN103615272A (en) * | 2013-11-07 | 2014-03-05 | 山东交通学院 | Hollow anchor rod with rebar framework and construction method of hollow anchor rod |
| CN104675419A (en) * | 2013-12-02 | 2015-06-03 | 张弘 | Cylindrical pocket type anchor rod fixing structure |
| CN110670599A (en) * | 2019-09-09 | 2020-01-10 | 中冶交通建设集团有限公司 | Hollow grouting prestressed anchor rod and construction method thereof |
| CN111379581A (en) * | 2020-03-24 | 2020-07-07 | 淮南东华欧科矿山支护设备有限责任公司 | Deep roadway prestress full-anchor support construction equipment and construction method thereof |
| CN111379581B (en) * | 2020-03-24 | 2021-08-31 | 淮南东华欧科矿山支护设备有限责任公司 | Deep roadway prestress full-anchor support construction equipment and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20130502 |