CN201225095Y - Drill filling pile stone-shifting drill head - Google Patents
Drill filling pile stone-shifting drill head Download PDFInfo
- Publication number
- CN201225095Y CN201225095Y CNU2008200754545U CN200820075454U CN201225095Y CN 201225095 Y CN201225095 Y CN 201225095Y CN U2008200754545 U CNU2008200754545 U CN U2008200754545U CN 200820075454 U CN200820075454 U CN 200820075454U CN 201225095 Y CN201225095 Y CN 201225095Y
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- China
- Prior art keywords
- drill bit
- drill
- stone
- poking
- flange
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- 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 stone-poking drill bit in a drilling filling pile, which comprises a central conical rod (1), an outer tension sleeve (2), a flange (3) and a drill bit (4). The stone-poking drill bit is characterized in that a conical plate (5) is fixed between the lower parts of the outer tension sleeve (2) and the central conical rod (1), and a plurality of water holes (6) are arranged on the conical plate (5); a plurality of surrounding stone-poking sheets (7) are also arranged at the upper part of the conical plate (5), and a plurality of protective ribs (8) at equal intervals are arranged on the central conical rod (1) below the outer tension sleeve (2) and the flange (3). The stone-poking drill bit also comprises the conical plate with the stone-poking sheets which have the function of poking float stones and boulder stones, the protective ribs at equal intervals are fixed on the central conical rod below the outer tension sleeve and the flange to form a protective hood so as to prevent the float stones and the boulder stones from falling in a drill to collide with the drill bit.
Description
Affiliated technical field
The utility model belongs to drill bit for building, and a kind of specifically harbour, bridge accompany the used drill bit of wellhole of construction drill castinplace pile under erratic boulder, the boulder geological conditions at dark mud.
Background technology
Bored pile is a kind of foundation structure form that harbour, high-grade highway bridge generally adopt.The general earth geology of prior art is by the drilling well of pass-through type drill bit.The pass-through type drill bit generally is welded by steel pipe, steel plate or reinforcing bar, and its operating principle is: rig reaches drill bit by drilling rod with rotary power, and drill bit under water is in rotary course, cut earth and it is stirred into mud, along with the continuous injection of water and the continuous drilling depth of drill bit, mud is held out wellhole, be thrown in the mud pit, very fast water and soil segregation, earth is deposited at the bottom of the pond, elutriation goes out, be injected into wellhole once more, form new mud, be discharged into mud pit once more, circulation finally forms wellhole according to this.Reach projected depth, after well-flushing is qualified, cage of reinforcement, concrete perfusion formation pile foundation are installed.The deficiency of its existence is: 1, the scope of application is little, only limits to pure earth geological conditions, when meeting boulder, erratic boulder, bit freezing very easily occurs, damages the drill bit phenomenon, forces shut-down.Meet this sight, conventional method is: take two casing methods or drop shaft sinking to cooperate artificial the salvaging, get rid of erratic boulder, boulder.Recruitment is many, length consuming time.When erratic boulder, boulder position are dark, not only have high input, weak effect, and be absolutely unsafe; When 2, meeting high north soil layer, very easily stick with paste and bore, promptly drill bit by foundry loam stick with paste full, form taper foundry loam entity, the rig load increases, drilling well is drilling depth normally, need carry brill repeatedly, wash brill, consuming time taking a lot of work.
Summary of the invention
The purpose of the utility model is to overcome the above-mentioned deficiency of prior art, and a kind of improved drill is provided, and it has avoided boulder, erratic boulder to damage drill bit and foundry loam is stuck with paste the brill phenomenon, and result of use is good.
For reaching above-mentioned purpose, the utility model is taked following technical scheme: the utility model includes: center cone bar, outer cranse, center cone bar upper end is connected with flange, the lower end is provided with drill bit, outer ferrule collar around and be fixed on the center cone bar outside, it is characterized in that: be fixed with the cone plate between cranse and the center cone bar bottom outside, on the cone plate, have some water holes, also be provided with on cone plate top around several groups flag, be fixed with some equally spaced muscle that protect outside under cranse and the flange on the center cone bar.
The utility model is taked technique scheme, has following beneficial effect: the utility model adopts and be enclosed with the cone plate that band is dialled flag on pass-through type drill bit basis, dials flag and has the function of dialling crowded erratic boulder, boulder.When meeting erratic boulder in the boring procedure, can stir, easily it be pushed in borehole wall earth and go, remove artificial salvaging from, drilling well is carried out smoothly, can improve the work efficiency several times, can guarantee construction safety by the extruding of parcel cone plate, group flag; Even meet high north clay, there are the protection and the current of parcel steel plate freely to come in and go out by the drill bit water hole, can not stick with paste brill yet.The utility model is fixed with some equally spaced muscle that protect on the center cone bar under cranse and the flange outside, forms protective cover, prevents that erratic boulder, boulder from crashing into drill body inner impact damage drill bit.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated:
Fig. 1 is the utility model structure diagram.
Mark among the figure: 1-center cone bar; The outer cranse of 2-; The 3-flange; The 4-drill bit; 5-cone plate; The 6-water hole; 7-dials flag; 8-protects muscle; 9-power transmission arm
The specific embodiment
By shown in Figure 1, the utility model includes: center cone bar 1, outer cranse 2, center cone bar 1 upper end is connected with flange 3, the lower end is provided with drill bit 4, outer cranse 2 around and be fixed on center cone bar 1 outside by power transmission arm 9, be fixed with cone plate 5 between cranse 2 and center cone bar 1 bottom outside, interleaved on cone plate 5 have some water holes 6, also around several groups flag 7 is set, be fixed with some equally spaced muscle 8 that protect on cone plate 5 tops outside on 3 times center cone bars 1 of cranse 2 and flange.Between cone plate 5 and the center cone bar 1 angle and protect muscle 8 and center cone bar 1 between angle be 35 °～40 °.Along drill bit rotation to, dial flag 7 and be 6 °～10 ° angles with cone plate 5.Water hole 6 is an elliptical aperture, and the major and minor axis diameter is respectively 15cm and 10cm, in case erratic boulder, boulder enter in the drill body dialling to push through in the journey.
Of the present utility model group of flag 7 can be after cutting into " U " shape slotted eye on the cone plate 5, and the certain angle that turns up of lozenge in it is formed.
Claims (2)
1, a kind of bored pile is dialled aiguille, it includes: center cone bar (1), outer cranse (2), center cone bar (1) upper end is connected with flange (3), the lower end is provided with drill bit (4), outer cranse (2) around and be fixed on center cone bar (1) outside, it is characterized in that: be fixed with cone plate (5) between cranse (2) and center cone bar (1) bottom outside, on cone plate (5), have some water holes (6), also be provided with on cone plate (5) top around several groups flag (7), cranse (2) and flange (3) are fixed with some equally spaced muscle (8) that protect on the center cone bar (1) down outside.
2, a kind of bored pile according to claim 1 is dialled aiguille, it is characterized in that: between cone plate (5) and the center cone bar (1) angle and protect muscle (8) and center cone bar (1) between angle be 35 °～40 °; Along drill bit rotation to, dial flag (7) and be 6 °～10 ° angles with cone plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200754545U CN201225095Y (en) | 2008-07-23 | 2008-07-23 | Drill filling pile stone-shifting drill head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200754545U CN201225095Y (en) | 2008-07-23 | 2008-07-23 | Drill filling pile stone-shifting drill head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201225095Y true CN201225095Y (en) | 2009-04-22 |
Family
ID=40597980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200754545U Expired - Fee Related CN201225095Y (en) | 2008-07-23 | 2008-07-23 | Drill filling pile stone-shifting drill head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201225095Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368611A (en) * | 2016-11-16 | 2017-02-01 | 河南广度超硬材料有限公司 | Excavation drill high in precision and efficiency |
| CN113914779A (en) * | 2021-11-11 | 2022-01-11 | 长安大学 | Micro pile hole-forming pile-forming integrated drill bit device and method for soil stratum |
-
2008
- 2008-07-23 CN CNU2008200754545U patent/CN201225095Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368611A (en) * | 2016-11-16 | 2017-02-01 | 河南广度超硬材料有限公司 | Excavation drill high in precision and efficiency |
| CN113914779A (en) * | 2021-11-11 | 2022-01-11 | 长安大学 | Micro pile hole-forming pile-forming integrated drill bit device and method for soil stratum |
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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: 20090422 Termination date: 20130723 |