CN203856490U - Self-driven hollow grouting anchor bolt - Google Patents
Self-driven hollow grouting anchor bolt Download PDFInfo
- Publication number
- CN203856490U CN203856490U CN201420235536.7U CN201420235536U CN203856490U CN 203856490 U CN203856490 U CN 203856490U CN 201420235536 U CN201420235536 U CN 201420235536U CN 203856490 U CN203856490 U CN 203856490U
- Authority
- CN
- China
- Prior art keywords
- anchor
- anchor bolt
- bar body
- self
- spherical nut
- 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 self-driven hollow grouting anchor bolt comprising an anchor bolt body having a screw thread on the outer wall, an anchor head and a bit. The anchor head is screwed to the top end of the anchor bolt body through the screw thread; the bit is fixed at the tail end of the anchor bolt body; a ball nut is disposed on the anchor bolt body; the ball nut is screwed to the anchor bolt body at the upper end of the bit in a threaded manner. An arch plate is fixed on the outer circular wall of the ball nut. The lower end face of the arch plate is provided with spikes. A stop plug is disposed at the upper end of the ball nut. The stop plug sleeves the anchor bolt body and is abutted to the upper end of the ball nut. Compared with the prior art, the self-driven hollow grouting anchor bolt has the advantages that the ball nut and the arch plate can evenly transfer the stress of deep perilous rock to the rock of a surrounding wall, the spikes prevent the arch plate from rotating or shifting, the perilous rock and the anchor bolt can be mutually supported from the start of drilling so that work efficiency is improved, and a coupling allows mining in the perilous rock reinforced with an extra-long anchor bolt.
Description
Technical field
The utility model is involved in civil engineering and exploitation of mineral resources field, particularly a kind of self-advancing type hollow grouting anchor.
Background technology
In the underground construction exploitations such as earth's surface engineering and tunnel, stope, mine deep part, often cause the strong exploitation such as highland pressure, High-geotemperature, high karst hydraulic pressure disturbance.Under high-ground stress effect, usually there is larger variation in the deformation characteristic of rock mass, shows as obvious rheology, open in ROCK MASS JOINT, crack, occurs a large amount of new crackles, causes dilatation to be expanded simultaneously, High-geotemperature also causes STRESS VARIATION, form new crack, for mine support brings a lot of difficulties, in order to control better country rock, people adopt hollow grouting anchor its support reinforcement mode, country rock is carried out to slip casting and fill up crack, form overall country rock, control roadway deformation.
In the time that supporting is carried out in the engineering tops such as roadway, normally above the drill bit of anchor pole, add arch sheet, still, arch sheet often for rotating, causes rock around or earth's surface loosening under the rotation of anchor pole, opens exploitation work and makes troubles.
Summary of the invention
The purpose of this utility model is will provide a kind of simple in structure, the self-advancing type hollow grouting anchor that operating efficiency is high.
For achieving the above object, the utility model is implemented according to following technical scheme:
A kind of self-advancing type hollow grouting anchor, comprise that outer wall establishes threaded anchor bar body, anchor head and drill bit, anchor head is screwed in anchor bar body top by screw thread, drill bit is fixed on anchor bar body end, on described anchor bar body, spherical nut is set, and spherical nut is screwed in by screw thread on the anchor bar body of drill bit upper end, spherical nut external annulus is fixedly installed arch sheet, the lower surface of described arch sheet arranges spike-tooth, and spherical nut upper end arranges stop grouting plug, and stop grouting plug is nested with outside anchor bar body and with the upper end of spherical nut and offsets.
As preferably, on described anchor bar body, be arranged with coupling sleeve, coupling sleeve spins by screw thread and anchor bar body.
As preferably, described arch sheet is fixed on outside the center anchor ring of spherical nut.
As preferably, described arch sheet is arch, vertical with anchor bar body away from a side of spherical nut near a side direction lower recess of spherical nut.
As preferably, the uniform multiple spike-tooths in lower surface of the described side away from spherical nut.
Compared with prior art, spherical nut of the present utility model and arch sheet can by deep layer crag stress equilibrium be delivered on surrounding wall rock, spike-tooth can prevent that arch sheet from rotating or displacement, therefore can in the time that boring starts, just reach the object of crag and anchor pole supporting each other, has improved operating efficiency; Coupling sleeve can be realized the exploitation work of speciality bolt anchorage crag.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described, is used for explaining the utility model in illustrative examples and the explanation of this utility model, but not as to restriction of the present utility model.
A kind of self-advancing type hollow grouting anchor as shown in Figure 1, comprise that outer wall establishes threaded anchor bar body 1, anchor head 2 and drill bit 4, anchor head 2 is screwed in anchor bar body 1 top by screw thread, drill bit 4 is fixed on anchor bar body 1 end, on described anchor bar body 1, spherical nut 5 is set, spherical nut 5 is screwed in by screw thread on the anchor bar body 1 of drill bit 4 upper ends, spherical nut 3 external annulus are fixedly installed arch sheet 6, the lower surface of described arch sheet 6 arranges spike-tooth 7, spherical nut 5 upper ends arrange stop grouting plug 8, and stop grouting plug 8 is nested with outside anchor bar body 1 and with the upper end of spherical nut 5 and offsets.
On anchor bar body 1, be arranged with coupling sleeve 3, coupling sleeve 3 spins by screw thread and anchor bar body 1.
Arch sheet 6 is fixed on outside the center anchor ring of spherical nut 5.
For making more Transmit evenly deep layer crag stress of arch sheet 6, arch sheet 6 is arch, vertical with anchor bar body 1 away from a side of spherical nut 5 near a side direction lower recess of spherical nut 5.
For preventing that arch sheet 6 from rotating the efficiency that affects boring, away from the uniform multiple spike-tooths 7 in lower surface of a side of spherical nut 5.
When the utility model uses:
1. anchor head 2 and chassis or hand drill are connected, arch sheet 6 is fixed on rock mass surface, start to creep into by the degree of depth of design, and while creeping into, filling cooling water; Anchor bar body 1 lengthens as needed, and available coupling sleeve 3 connects, and then creeps into;
2. unload rig, stop grouting plug 8 is packed into anchor bar body 1, prepare slip casting;
3. quick filling adaptor is connected with anchor bar body 1 tail end, the filling adaptor other end is connected with slurry filling machine;
4. start slurry filling machine slip casting, when full and pressure reaches design load until slip casting, shut down, grouting pressure is determined according to design parameters and slurry filling machine performance.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technical solution of the utility model, within all falling into protection domain of the present utility model.
Claims (5)
1. a self-advancing type hollow grouting anchor, comprise that outer wall establishes threaded anchor bar body (1), anchor head (2) and drill bit (4), anchor head (2) is screwed in anchor bar body (1) top by screw thread, drill bit (4) is fixed on anchor bar body (1) end, it is characterized in that: spherical nut (5) is set on described anchor bar body (1), spherical nut (5) is screwed in by screw thread on the anchor bar body (1) of drill bit (4) upper end, spherical nut (5) external annulus is fixedly installed arch sheet (6), the lower surface of described arch sheet (6) arranges spike-tooth (7), spherical nut (5) upper end arranges stop grouting plug (8), stop grouting plug (8) is nested with outside anchor bar body (1) and with the upper end of spherical nut (5) and offsets.
2. self-advancing type hollow grouting anchor according to claim 1, is characterized in that: on described anchor bar body (1), be arranged with coupling sleeve (3), coupling sleeve (3) spins by screw thread and anchor bar body (1).
3. self-advancing type hollow grouting anchor according to claim 1, is characterized in that: described arch sheet (6) is fixed on outside the center anchor ring of spherical nut (5).
4. self-advancing type hollow grouting anchor according to claim 1, is characterized in that: described arch sheet (6) is arch, vertical with anchor bar body (1) away from a side of spherical nut (5) near a side direction lower recess of spherical nut (5).
5. self-advancing type hollow grouting anchor according to claim 4, is characterized in that: the uniform multiple spike-tooths in lower surface (7) of the described side away from spherical nut (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420235536.7U CN203856490U (en) | 2014-05-06 | 2014-05-06 | Self-driven hollow grouting anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420235536.7U CN203856490U (en) | 2014-05-06 | 2014-05-06 | Self-driven hollow grouting anchor bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856490U true CN203856490U (en) | 2014-10-01 |
Family
ID=51606351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420235536.7U Expired - Fee Related CN203856490U (en) | 2014-05-06 | 2014-05-06 | Self-driven hollow grouting anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856490U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201533A (en) * | 2015-10-14 | 2015-12-30 | 灌阳县鸿运矿山设备有限公司 | Mining anchor rod |
| CN105840222A (en) * | 2016-05-14 | 2016-08-10 | 中铁二院工程集团有限责任公司 | Push and press type bonding hollow anchor rod capable of being quickly anchored and installed |
-
2014
- 2014-05-06 CN CN201420235536.7U patent/CN203856490U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201533A (en) * | 2015-10-14 | 2015-12-30 | 灌阳县鸿运矿山设备有限公司 | Mining anchor rod |
| CN105840222A (en) * | 2016-05-14 | 2016-08-10 | 中铁二院工程集团有限责任公司 | Push and press type bonding hollow anchor rod capable of being quickly anchored and installed |
| CN105840222B (en) * | 2016-05-14 | 2019-01-04 | 中铁二院工程集团有限责任公司 | Push-press type can quick anchoring installation binding type hollow bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING TUNNEL ENGINEERING CO., LTD. Free format text: FORMER OWNER: ANHUI WANBEI COAL-ELECTRICITY GROUP CO., LTD. Effective date: 20150107 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lu Yue Inventor before: Zhao Zhenzhong Inventor before: Jin Jing |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHAO ZHENZHONG JIN JING TO: LU YUE Free format text: CORRECT: ADDRESS; FROM: 234000 HUAIBEI, ANHUI PROVINCE TO: 100000 CHAOYANG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150107 Address after: 100000 Beijing city Chaoyang District East Third Ring Road No. 52 south along main diamond 17C Patentee after: In Beijing Tunnel Engineering Co. Ltd. Address before: 234000 Anhui province Huaibei City Xiangshan District in Anhui province Wanbei Coal Group Co., Ltd. Patentee before: Anhui Province Wan Bei Mei electricity Group Co.,Ltd |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20170506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |