CN208870533U - A kind of cement mixing pile drill bit - Google Patents
A kind of cement mixing pile drill bit Download PDFInfo
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- CN208870533U CN208870533U CN201821264099.6U CN201821264099U CN208870533U CN 208870533 U CN208870533 U CN 208870533U CN 201821264099 U CN201821264099 U CN 201821264099U CN 208870533 U CN208870533 U CN 208870533U
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- blade
- drilling rod
- cement mixing
- stirring blade
- mixing pile
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Abstract
The utility model relates to a kind of cement mixing pile drill bits, including drilling rod and multiple spaced stirring blades, adjacent stirring blade to mutually stagger；The drilling rod is provided with injected hole, and injected hole is connected to Grouting Pipe；The drilling rod lower end is fixed with apex point；The apex point is provided with No.1 grout outlet；It include horizontal stirring that blade and two are vertical to stir blade per the stirring blade；Indulged described in top two stir blade be fixed on it is horizontal stir above blade, the vertical blade that stirs below top is fixed on horizontal stir below blade；The horizontal blade that stirs is provided with slurry outlet, and the horizontal blade that stirs is horizontally arranged with No. two grout outlets；The opening direction of No. two grout outlets is opposite with the direction of rotation of stirring blade；No. two grout outlets are connected to slurry outlet, and slurry outlet is connected to injected hole, are rotated slurry by drilling rod and are sprayed on foundation soil from No. two grout outlets.
Description
Technical field
The utility model relates to capital construction field, specifically a kind of cement mixing pile drill bit.
Background technique
Cement mixing pile is that Soil-cement drill bit is put in foundation soil and stirs the curing agent such as cement and foundation soil
Form cement earth pile, make weak soil harden and the method that improves foundation strength to strengthening soft foundation.This method is suitable for place
The positions such as soft soil foundation, back filling behind abutment are managed, has many advantages, such as obvious processing effect, can come into operation quickly after processing.
The stirring blade of existing cement mixing pile drill bit is generally helical form and gunniting hole is located at apex point, in muck soil
Treatment of soft foundation in, due to mud viscosity, plasticity it is larger, foundation soil cannot be blended completely, be broken up by drill bit, lead to cement grout
Cannot organic whole sufficiently be uniformly mixed to form with foundation soil；Since gunniting hole is located at apex point, most of cement grouts are concentrated
Near gunniting hole, and pile body tomography, pile body center are often resulted in without cement slurry, intensity wretched insufficiency etc. without slurries among pile body
Quality problems, there is differential settlement phenomenon in road Louis after the completion of construction.
Utility model content
In order to solve the above problem present in the prior art, the utility model provides a kind of cement mixing pile drill bit,
Slurry can be sprayed while blending, breaing up foundation soil and is sufficiently mixed with foundation soil by the cement mixing pile drill bit, and be gone out
Slurry mouth is not easy to be blocked, and the pile-forming effect of cement mixing pile is good.
The technical solution of the utility model is as follows:
A kind of cement mixing pile drill bit, including longitudinally disposed drilling rod and multiple paddles spaced from top to bottom
Piece, neighbouring stirring blade longitudinal direction at an angle to each other mutually stagger；It is vertically arranged with inside the drilling rod for conveying
The injected hole of slurry, injected hole are connected to the Grouting Pipe of external slip casting machine；The drilling rod lower end is fixed with apex point；The apex point diameter
To being provided with multiple No.1 grout outlets being connected to injected hole；It include that middle position and drilling rod are radially fixed per the stirring blade
Horizontal stir that blade and two are vertical to stir blade；It is indulged described in top two and stirs blade and be vertically fixed on horizontal stir in both ends of the blade portion respectively
Square, the vertical blade that stirs below top is vertically fixed on horizontal stir below both ends of the blade portion；The horizontal blade that stirs is along length side
To being provided with slurry outlet, it is horizontal stir blade and do not cut the side of foundation soil be horizontally arranged with multiple No. two grout outlets；Described No. two go out
The opening direction for starching mouth is opposite with the direction of rotation of stirring blade；No. two grout outlets are connected to slurry outlet, slurry outlet and note
Hole connection is starched, slurry is rotated from the foundation soil that No. two grout outlets are sprayed onto cement mixing pile by drilling rod.
Further, described indulge stirs No. three grout outlets that blade is provided with arc；Described No. three grout outlet one end and pulp
Hole connection, the opening of No. three grout outlets, which is located to indulge, stirs blade close to drilling rod side.
Further, the upper end of stirring blade described in the lower end of stirring blade described in the bottom and top is longitudinally fixed
Have multiple for cutting the wear-resisting taper pointed tooth for breaing up foundation soil.
Further, the distance between stirring blade described in adjacent layer is 200mm~350mm.
Further, the horizontal blade that stirs is S-shaped strip, and the horizontal circumferential drift angle for stirring blade of S-shaped is 25 °~30 °.
Further, the stirring blade is the steel alloy of wear-resisting high-strength.
Further, the drilling rod is 73 alloy drilling rod of φ.
The utility model has the following beneficial effects:
1, a kind of cement mixing pile drill bit of the utility model, the stirring blade that multilayer is arranged in a staggered manner can effectively stir foundation soil
It is broken, break up, and foundation soil and slurry are sufficiently mixed, molding cement mixing pile is high-quality.
2, the No.1 grout outlet of a kind of cement mixing pile drill bit of the utility model, apex point is arranged radially, and does not easily cause slurry
Blocking, pulp effect are good.
3, a kind of cement mixing pile drill bit of the utility model, when stirring blade rotates, under the action of the centrifugal force in injected hole
Slurry easily flow in slurry outlet, and the opening direction of No. two grout outlets and the direction of rotation of stirring blade on the contrary, slurry easily from
Positioned at it is horizontal stir blade and do not cut No. two grout outlets of foundation soil side fly to spill and, do not easily cause slurry to block.
4, a kind of cement mixing pile drill bit of the utility model, the opening of No. three grout outlets, which is located to indulge, stirs blade close to drilling rod one
Side, the slurry in slurry outlet can further be sprayed from No. three grout outlets.
5, fixed conical points on a kind of cement mixing pile drill bit of the utility model, the bottom and top stirring blade
Tooth can effectively break up foundation soil when the up and down motion of cement mixing pile drill bit is stirred.
Detailed description of the invention
Fig. 1 is the forward sight structural schematic diagram of the utility model；
Fig. 2 is the top view of the single layer stirring blade of the utility model；
Top view when Fig. 3 is three layers of stirring blade combination of the utility model；
Fig. 4 is the bottom stirring blade front view of the utility model；
Fig. 5 is the top stirring blade front view of the utility model.
Appended drawing reference indicates in figure are as follows:
1, drilling rod；10, injected hole；11, apex point；110, No.1 grout outlet；2, stirring blade；20, horizontal to stir blade；21, it indulges
Stir blade；22, slurry outlet；220, No. two grout outlets；221, No. three grout outlets；23, taper pointed tooth.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Referring to Fig. 1 to Fig. 5, a kind of cement mixing pile drill bit, including longitudinally disposed drilling rod 1 and it is multiple from top to bottom between
Every the stirring blade 2 of setting, the neighbouring longitudinal direction at an angle to each other of the stirring blade 2 is mutually staggered (referring to Fig. 3), so that ground
Base soil is easier to be blended or broken up by the stirring blade 2 of upper and lower level；The note for conveying slurry is vertically arranged with inside the drilling rod 1
Hole 10 is starched, injected hole 10 is connected to the Grouting Pipe (being not drawn into figure) of external slip casting machine；1 lower end of drilling rod is fixed with apex point
11；The apex point 11 is arranged radially multiple No.1 grout outlets 110 being connected to injected hole 10；Include per the stirring blade 2
Middle position and radially fixed horizontal of drilling rod 1 stir blade 20 and two vertical are stirred blade 21；It is indulged described in top two and stirs blade 21
Be vertically fixed on respectively it is horizontal stir above 20 both ends of blade, below top it is described it is vertical stir blade 21 and be vertically fixed on horizontal stir leaf
Below 20 both ends of piece；The horizontal blade 20 that stirs is provided with slurry outlet 22 along its length, and the horizontal blade 20 that stirs does not cut foundation soil
Side be horizontally arranged with multiple No. two grout outlets 220；The rotation of the opening direction and stirring blade 20 of No. two grout outlets 220
Turn contrary, so that No. two grout outlets 220 are not easy to be blocked by slurry or foundation soil；No. two grout outlets 220 and slurry outlet
22 connections, slurry outlet 22 are connected to injected hole 10, are rotated slurry by drilling rod 1 and are sprayed onto cement mixing from No. two grout outlets 220
On the foundation soil of stake (direction of rotation that curved arrow of the Fig. 1 into Fig. 5 is drilling rod 1).
As shown in Figure 1, Figure 4 and Figure 5, described indulge stirs No. three grout outlets 221 that blade 21 is provided with arc；Described No. three go out
Slurry 221 one end of mouth is connected to slurry outlet 22, and the opening of No. three grout outlets 221, which is located to indulge, stirs blade 21 close to 1 side of drilling rod.
As shown in Figure 1, Figure 4 and Figure 5, stirring blade 2 described in the lower end of stirring blade 2 and top described in the bottom is upper
End it is longitudinally fixed have it is multiple for cutting the wear-resisting taper pointed tooth 23 for breaing up foundation soil, to improve stirring for foundation soil and slurry
It is broken, break up effect.
As shown in Figure 1, the distance between stirring blade 2 described in adjacent layer is 200mm ~ 350mm.
As shown in Figures 2 and 3, it is described it is horizontal stir blade 20 be S-shaped strip, the horizontal circumferential drift angle for stirring blade 20 of S-shaped be 25 ° ~
30 °, to reduce resistance when stirring blade 2 rotates.
As shown in Figures 2 and 3, the stirring blade 2 is the steel alloy of wear-resisting high-strength.
As shown in Figure 1, the drilling rod 1 is 73 alloy drilling rod of φ.
Working principle of the utility model is:
A kind of cement mixing pile drill bit of the utility model will be in use, will with the Grouting Pipe (being not drawn into figure) of external slip casting machine
Slurry is injected into the injected hole 10 in drilling rod 1, and slurry is along the feeding from top to bottom of injected hole 10；Drilling rod 1 is in stirring motor (figure
In be not drawn into) driving under rotate (direction of rotation that curved arrow of the Fig. 1 into Fig. 5 is drilling rod 1), while drilling rod 1 drive
Stirring blade 2 rotates together, and the mixing effect of stirring blade 2 can be improved in pumping for drilling rod 1；Slurry in injected hole 10
When stream is to apex point 11, it can be sprayed by No.1 grout outlet 110 and be mixed with foundation soil；Slurry also holds very much under the action of the centrifugal force
Easily enter in the slurry outlet 22 of stirring blade 2, the slurry in slurry outlet 22 can be along No. two grout outlets 220 and No. three grout outlets
221 spray and mix with foundation soil；Drilling rod 1, which pumps, can make 110, No. two grout outlets 220 of No.1 grout outlet and No. three
The slurry that grout outlet 221 sprays sufficiently is mixed with the foundation soil of cement mixing pile upper and lower level, improves the pile matter of cement mixing pile
Amount；The cement mixing pile drill bit can spray slurry while blending, breaing up foundation soil, and slurry and foundation soil is sufficiently mixed
It closes, and the grout outlet effect of cement mixing pile drill bit is good, 110, No. two grout outlets 220 of No.1 grout outlet and No. three grout outlets 221
It is not easy to be blocked.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (7)
1. a kind of cement mixing pile drill bit, it is characterised in that: multiple be spaced including longitudinally disposed drilling rod (1) and from top to bottom
The stirring blade (2) of setting, the neighbouring stirring blade (2) longitudinal direction at an angle to each other mutually stagger；In the drilling rod (1)
Portion is vertically arranged with the injected hole (10) for conveying slurry, and injected hole (10) is connected to the Grouting Pipe of external slip casting machine；It is described
Drilling rod (1) lower end is fixed with apex point (11)；The apex point (11) is arranged radially multiple No.1s being connected to injected hole (10) and goes out
It starches mouth (110)；It include that middle position and drilling rod (1) radially fixed horizontal stir blade (20) and two per the stirring blade (2)
A indulge stirs blade (21)；Indulged described in top two stir blade (21) be vertically fixed on respectively it is horizontal stir above blade (20) both ends,
The vertical blade (21) that stirs below top is vertically fixed on horizontal stir below blade (20) both ends；It is described horizontal to stir blade (20)
Be provided with along its length slurry outlet (22), it is horizontal stir blade (20) do not cut foundation soil side be horizontally arranged with multiple No. two go out
It starches mouth (220)；The opening direction of No. two grout outlets (220) is opposite with the direction of rotation of stirring blade (2)；Described No. two go out
Slurry mouth (220) is connected to slurry outlet (22), and slurry outlet (22) is connected to injected hole (10), rotates slurry from two by drilling rod (1)
Number grout outlet (220) is sprayed on the foundation soil of cement mixing pile.
2. a kind of cement mixing pile drill bit as described in claim 1, it is characterised in that: described vertical to stir blade (21) and be provided with arc
No. three grout outlets (221) of shape；No. three grout outlets (221) one end is connected to slurry outlet (22), No. three grout outlets (221)
Opening is located at vertical stir blade (21) close to drilling rod (1) side.
3. a kind of cement mixing pile drill bit as described in claim 1, it is characterised in that: stirring blade described in the bottom (2)
The upper end of stirring blade described in lower end and top (2) it is longitudinally fixed have it is multiple for cutting the wear-resisting taper for breaing up foundation soil
Pointed tooth (23).
4. a kind of cement mixing pile drill bit as described in claim 1, it is characterised in that: stirring blade described in adjacent layer (2) it
Between distance be 200mm ~ 350mm.
5. a kind of cement mixing pile drill bit as described in claim 1, it is characterised in that: described horizontal stir blade (20) are S-shaped item
Shape, the horizontal circumferential drift angle for stirring blade (20) of S-shaped are 25 ° ~ 30 °.
6. a kind of cement mixing pile drill bit as described in claim 1, it is characterised in that: the stirring blade (2) is wear-resisting height
Strong steel alloy.
7. a kind of cement mixing pile drill bit as described in claim 1, it is characterised in that: the drilling rod (1) is 73 alloy of φ brill
Bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821264099.6U CN208870533U (en) | 2018-08-07 | 2018-08-07 | A kind of cement mixing pile drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821264099.6U CN208870533U (en) | 2018-08-07 | 2018-08-07 | A kind of cement mixing pile drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208870533U true CN208870533U (en) | 2019-05-17 |
Family
ID=66464059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821264099.6U Active CN208870533U (en) | 2018-08-07 | 2018-08-07 | A kind of cement mixing pile drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208870533U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158571A (en) * | 2019-06-18 | 2019-08-23 | 蒿振侠 | Two cards double-deck pair is stirred drill configurations |
| CN110258544A (en) * | 2019-07-26 | 2019-09-20 | 北京中岩大地科技股份有限公司 | The stirring drill bit of deep-layer stirring is realized based on drop resistance mode |
| CN112726581A (en) * | 2020-12-30 | 2021-04-30 | 佛山科学技术学院 | Cement mixing pile drill bit with bidirectional rotating mixing blades |
-
2018
- 2018-08-07 CN CN201821264099.6U patent/CN208870533U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158571A (en) * | 2019-06-18 | 2019-08-23 | 蒿振侠 | Two cards double-deck pair is stirred drill configurations |
| CN110158571B (en) * | 2019-06-18 | 2021-04-13 | 福州鼓楼纹英建筑工程有限责任公司 | Structure of double-deck double-stirring drill bit with two pattern plates |
| CN110258544A (en) * | 2019-07-26 | 2019-09-20 | 北京中岩大地科技股份有限公司 | The stirring drill bit of deep-layer stirring is realized based on drop resistance mode |
| CN112726581A (en) * | 2020-12-30 | 2021-04-30 | 佛山科学技术学院 | Cement mixing pile drill bit with bidirectional rotating mixing blades |
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