CN201050303Y - Self-dumping cone type spiral anchor drill bit - Google Patents
Self-dumping cone type spiral anchor drill bit Download PDFInfo
- Publication number
- CN201050303Y CN201050303Y CNU2007200114597U CN200720011459U CN201050303Y CN 201050303 Y CN201050303 Y CN 201050303Y CN U2007200114597 U CNU2007200114597 U CN U2007200114597U CN 200720011459 U CN200720011459 U CN 200720011459U CN 201050303 Y CN201050303 Y CN 201050303Y
- Authority
- CN
- China
- Prior art keywords
- drill bit
- anchor
- bit
- backing plate
- anchor plate
- 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
Images
Abstract
The utility model relates to a pore-forming equipment of anchor for the foundation pit support, slope support and geological disaster management in the civil engineering construction, in particular to a self-unloading spiral anchor bit comprising a bit and a drill rod. One end of the bit is provided with a conoid guider. On the external circumference surface of the other end of the bit linked with the drill rod, a plurality of splines is in uniform distribution. The bit on one side of the splines is jacketed with an anchor backing plate provided with a strand. On the bit between the anchor backing plate and the splines, a stator is connected and fixed, in which the outer diameter is smaller than that of the anchor backing plate and larger than the inner diameter of the anchor backing plate for the spacing of the anchor backing plate. The strand is in fixed connection on the anchor backing plate through an extruding anchor. The rear end of the bit of the utility model, in which a spline is adopted, is in inserted connection with a key way of the front end of the drill rod through the detachable method. The bit and the drill rod can be freely disassembled. After the pore is formed, the anchor is disposed in the formation along with the bit, and the drill rod can be easily pulled out for the reuse. Therefore, the cost is reduced while the work efficiency is also improved with the streamlining of the construction process.
Description
Technical field
The utility model relates to the pore-forming instrument of pattern foundation pit supporting structure in the civil engineering construction, slope retaining, geological hazard control usefulness anchor pole, specifically a kind of self-tipping type spiral anchor rod drill bit.
Background technology
In industries such as building, railway, highway, water conservancy, harbour and mine, at retaining soil one-tenth drill with anchor pole, its with drilling rod between adopt and be threaded.Following several problems appear in the existing drill bit that is connected with drill rod thread in the work progress of boring:
1. on loose stratum, the boring back adopts with pipe bit because of the hole shrinkage cavity of collapsing usually, and drill bit and drilling rod are extracted, and sleeve pipe is motionless, inserts anchor pole main body, Grouting Pipe again, and Grouting Pipe, sleeve pipe are extracted in slip casting then again; Construction technology complexity, speed are slow, and cost is also very high.
2. in hard stratum construction, after the boring drill bit and drilling rod are together extracted, anchor pole is descended in Grouting Pipe slip casting down in pore-forming more then; Because operation is loaded down with trivial details, efficiency of construction is low, has correspondingly also increased cost.Or after boring, only drill bit is stayed in the hole and taken out drilling rod, because drill bit is threaded with the drilling rod employing, when taking out drilling rod, drilling rod occurs to fracture through regular meeting, and the junction drilling rod of residual fraction also; So, not only cause workpiece to damage and strengthen cost, also reduced efficiency of construction.
The utility model content
In order to solve the weak point of above-mentioned existence, the self-unloading bevel-type spiral anchor rod drill bit that the purpose of this utility model is to provide a kind of to be increased work efficiency, simplified construction sequence and then reduce cost.
The purpose of this utility model is achieved through the following technical solutions:
The utility model comprises drill bit, drilling rod, and drill bit one end is provided with the taper guider, and the external peripheral surface of the other end that is connected with drilling rod at drill bit is evenly equipped with a plurality of splines.
Wherein: on the drill bit of spline one side, be with anchor plate, steel strand are installed on it; Be connected with stator on the drill bit between anchor plate and the spline; The internal diameter of described anchor plate is greater than bit diameter, and drill bit rotatably passes anchor plate; The external diameter of stator is less than the external diameter of anchor plate, greater than the internal diameter of anchor plate, and is spacing to anchor plate; Described steel strand are connected on the anchor plate by the extruding anchoring; Have keyway on the end inwall that described drilling rod is connected with drill bit, plug with spline on the drill bit.
Advantage of the present utility model and good effect are:
The rear end of the utility model drill bit adopts spline and keyway to plug with the front end of the mode that can throw off and drilling rod, drill bit and drilling rod can freely be dismantled, anchor pole is placed in the stratum with drill bit behind the pore-forming, drilling rod can easily be extracted, reuse, when having reduced cost, also improve operating efficiency, simplified construction sequence.In addition, the utility model reduces environment pollution applicable to various stratum, has guaranteed the civilized construction of environmental protectionization.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an A-A sectional view among Fig. 1;
Fig. 3 is the sectional view of B-B among Fig. 1;
Fig. 4 is the partial structurtes schematic diagram of the drilling rod that is connected with drill bit;
Fig. 5 is the sectional view of C-C among Fig. 4;
Wherein, 1 is the reinforcing bar guider, and 2 is helical blade, and 3 are the extruding anchor, and 4 is anchor plate, and 5 is steel strand, and 6 is spline, and 7 is stator, and 8 is grout hole, and 9 is three Jis guiding raft plates, and 10 is keyway.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Shown in Fig. 1～3, the utility model comprises drill bit, drilling rod, and drill bit one end is provided with the bevel-type guider, cone, front end is made in reinforcing bar guider 1 weldering be to be welded after the sharp cone distal again and make on three Jis guiding raft plate 9.The external peripheral surface of the other end that is connected with drilling rod at drill bit is evenly equipped with a plurality of splines 6.Also be provided with helical blade 2 on the drill bit, on the drill bit between helical blade 2 and the spline 6, be with anchor plate 4, steel strand 5 are installed on it.After steel strand 5 are passed by anchor plate 4, be fixed on the anchor plate 4 by extruding anchor 3.Drill bit is passed by anchor plate 4, because the internal diameter of anchor plate 4 is greater than drill bit mobile jib diameter, external diameter is less than the external diameter of helical blade 2, and therefore anchor plate 4 does not rotate thereupon when drill bit rotates.Be connected with stator 7 on the drill bit between anchor plate 4 and the spline 6, the external diameter of stator 7 plays position-limiting action less than the external diameter of anchor plate 4, greater than the internal diameter of anchor plate 4 to anchor plate 4, prevents that anchor plate 4 from coming off.Shown in Fig. 4～5, have keyway 10 on the end inwall that drilling rod is connected with drill bit, the spline 6 on drill bit is plugged on accordingly, can freely dismantle.
Operating principle of the present utility model is:
Drill bit is had an end of spline 6 have an end of keyway 10 to be plugged on drilling rod, drilling rod drives the drill bit rotation.The drill bit band steel strand 5 and is crept into ground together, is drilled into the degree of depth of designing requirement, with slush pump the hollow channel of cement grout by drilling rod is poured into.The hollow channel of drilling rod is connected with the hollow channel of drill bit, after slurries flow into the hollow channel of drill bit, flow out by the grout hole of offering on the drill bit sidewall 8, both can be used as the resistance that circulation fluid reduces to creep into, also can be used as a kind of injecting paste material and form anchoring body with the chip that bit cutting gets off.After slip casting finishes, again drilling rod and drill bit are disconnected, drilling rod is proposed outside the hole, make the bevel-type augers in steel strand are stayed pore-forming, form the squash type anchor pole that uplift resistance can be provided at last.
The spline quantity of the utility model drill bit rear end can be 4,6,8 or 12, decides on the rock-soil layer difference; Drilling rod is connected the keyway number of front end and also correspondingly determines with drill bit.
Claims (5)
1. a self-unloading bevel-type spiral anchor rod drill bit comprises drill bit, drilling rod, and drill bit one end is provided with the taper guider, it is characterized in that: the external peripheral surface of the other end that is connected with drilling rod at drill bit is evenly equipped with a plurality of splines (6).
2. by the described self-unloading bevel-type of claim 1 spiral anchor rod drill bit, it is characterized in that: on the drill bit of spline (6) one sides, be with anchor plate (4), steel strand (5) are installed on it; Be connected with stator (7) on the drill bit between anchor plate (4) and the spline (6).
3. by the described self-unloading bevel-type of claim 2 spiral anchor rod drill bit, it is characterized in that: the internal diameter of described anchor plate (4) is greater than bit diameter, and drill bit rotatably passes anchor plate (4); The external diameter of stator (7) is less than the external diameter of anchor plate (4), greater than the internal diameter of anchor plate (4), and is spacing to anchor plate (4).
4. by the described self-unloading bevel-type of claim 2 spiral anchor rod drill bit, it is characterized in that: described steel strand (5) are fixed on the anchor plate (4) by extruding anchor (3).
5. by the described self-unloading bevel-type of claim 1 spiral anchor rod drill bit, it is characterized in that: have keyway (10) on the end inwall that described drilling rod is connected with drill bit, plug with spline (6) on the drill bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200114597U CN201050303Y (en) | 2007-04-04 | 2007-04-04 | Self-dumping cone type spiral anchor drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200114597U CN201050303Y (en) | 2007-04-04 | 2007-04-04 | Self-dumping cone type spiral anchor drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201050303Y true CN201050303Y (en) | 2008-04-23 |
Family
ID=39336787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200114597U Expired - Fee Related CN201050303Y (en) | 2007-04-04 | 2007-04-04 | Self-dumping cone type spiral anchor drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201050303Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899987A (en) * | 2010-01-25 | 2010-12-01 | 孔祥清 | Coal mine roadway deep support construction method |
| CN102535458A (en) * | 2010-12-31 | 2012-07-04 | 中航勘察设计研究院有限公司 | Reinforced cement-soil anchor bolt and construction method thereof |
| CN103410145A (en) * | 2013-08-16 | 2013-11-27 | 郭红标 | Disposable anchor cable bit and construction method thereof |
| CN104110217A (en) * | 2013-04-19 | 2014-10-22 | 苏州文鼎模具有限公司 | Guiding drill bit |
| CN105756560A (en) * | 2016-02-23 | 2016-07-13 | 付文堂 | Drilling tool combination and arc-shaped laying method for seepage drainage pipes |
| CN105862870A (en) * | 2016-03-31 | 2016-08-17 | 南宁市纪元重载检测科技有限责任公司 | Recyclable anchor cable and anchor rod vertical supporting frame for foundation pit support |
-
2007
- 2007-04-04 CN CNU2007200114597U patent/CN201050303Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899987A (en) * | 2010-01-25 | 2010-12-01 | 孔祥清 | Coal mine roadway deep support construction method |
| CN101899987B (en) * | 2010-01-25 | 2011-11-30 | 孔祥清 | Coal mine roadway deep support construction method |
| CN102535458A (en) * | 2010-12-31 | 2012-07-04 | 中航勘察设计研究院有限公司 | Reinforced cement-soil anchor bolt and construction method thereof |
| CN104110217A (en) * | 2013-04-19 | 2014-10-22 | 苏州文鼎模具有限公司 | Guiding drill bit |
| CN103410145A (en) * | 2013-08-16 | 2013-11-27 | 郭红标 | Disposable anchor cable bit and construction method thereof |
| CN103410145B (en) * | 2013-08-16 | 2016-01-20 | 郭红标 | Disposable anchor cable bit and construction method thereof |
| CN105756560A (en) * | 2016-02-23 | 2016-07-13 | 付文堂 | Drilling tool combination and arc-shaped laying method for seepage drainage pipes |
| CN105756560B (en) * | 2016-02-23 | 2018-12-21 | 付文堂 | A kind of drill assembly and drainage pipe arc lay method |
| CN105862870A (en) * | 2016-03-31 | 2016-08-17 | 南宁市纪元重载检测科技有限责任公司 | Recyclable anchor cable and anchor rod vertical supporting frame for foundation pit support |
| CN105862870B (en) * | 2016-03-31 | 2017-10-20 | 南宁市纪元重载检测科技有限责任公司 | Recyclable pattern foundation pit supporting structure Anchor cable-rod support stand body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1995685B (en) | Pile forming mechanism with high-pressure-jet gyro bit and pile forming method | |
| CN201212147Y (en) | Combination drill tool for long screwy jet grouting and stirring pile | |
| CN201050303Y (en) | Self-dumping cone type spiral anchor drill bit | |
| CN101560765A (en) | Underground continuous wall construction technique of multi-spindle long spiral drill pipe occluding pile | |
| CN103806840A (en) | One-way spiral half soil compaction drill bit and one-way spiral half soil compaction pile construction technology | |
| CN201395793Y (en) | Long spiral high-pressure spraying mud injecting stirring pile-forming device | |
| CN103669337A (en) | Head-expansion long spiral drilling pressure irrigation pile and construction method and construction device thereof | |
| CN2652998Y (en) | Bundled steel twisted wire anchor with rotary spray drill bit | |
| CN103321222B (en) | Recoverable type anchor rod, pressure-bearing plate type anchor pile and anchoring method | |
| CN104153381A (en) | Waterproof curtain pile, waterproof curtain and construction method of waterproof curtain pile | |
| CN105040695A (en) | Anchor rod structure capable of integrally working and construction method | |
| CN110777776A (en) | In-situ stirring steel pipe pile construction system and method applied to coral reef geology | |
| CN206752454U (en) | One kind perfusion embedded pile | |
| CN106049462A (en) | Displacement pile and construction method and drilling tool thereof | |
| CN203769662U (en) | One-way spiral semi-soil-squeezing drill bit | |
| CN103306280B (en) | A kind of drill pipe bore implants stirring-type anchoring pile and anchoring process | |
| CN115354653A (en) | Construction method for weakening or eliminating soil squeezing stress of tubular pile | |
| CN201671098U (en) | Rotary spray mixing stiffened pile forming tool | |
| CN201650154U (en) | Adjustable multi-stage helical extruding type drilling tool | |
| JP2008208620A (en) | Ground improvement construction method and ground improvement device | |
| CN109083136B (en) | Anti-overflow thick liquid variable cross section cement soil mixing pile head | |
| CN203559413U (en) | End-expanded type long spiral drilling hole pressure pouring pile and construction device thereof | |
| CN206035515U (en) | Tunnel rock stratum slip casting anchor pipe | |
| CN111910615A (en) | Paste drilling, filling, impact extrusion and enlarged footing anchor rod structure system and construction method thereof | |
| CN205778551U (en) | A kind of Squeezing Soil Pile pile-forming drilling tool |
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: 20080423 Termination date: 20130404 |