CN109339694A - A kind of electric drill device of the anti-mud loss bubble lubrication of measurement while drilling - Google Patents
A kind of electric drill device of the anti-mud loss bubble lubrication of measurement while drilling Download PDFInfo
- Publication number
- CN109339694A CN109339694A CN201811423581.4A CN201811423581A CN109339694A CN 109339694 A CN109339694 A CN 109339694A CN 201811423581 A CN201811423581 A CN 201811423581A CN 109339694 A CN109339694 A CN 109339694A
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- drilling
- mud
- hand handle
- measurement
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- 238000005553 drilling Methods 0.000 title claims abstract description 61
- 238000005259 measurement Methods 0.000 title claims abstract description 15
- 238000005461 lubrication Methods 0.000 title claims abstract description 13
- 238000007596 consolidation process Methods 0.000 claims abstract description 16
- 239000011378 shotcrete Substances 0.000 claims abstract description 12
- 239000002002 slurry Substances 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 15
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 14
- 239000004575 stone Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 15
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000008014 freezing Effects 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B11/00—Other drilling tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B12/00—Accessories for drilling tools
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of electric drill devices of the anti-mud loss bubble lubrication of measurement while drilling, its structure includes: Auxiliary support hand handle, main body, control hand handle, it is connected gripping head, drilling equipment, the right end of Auxiliary support hand handle is nested in the left side of main body, the right side of main body is electrically connected with the left end of control hand handle by conducting wire, the beneficial effect of generation is under the action of gunite gun, it can be in mud loss, it makes up in time, it avoids mud very few and influences drilling, under the action of consolidation device, can drilling while compacting hole inner wall, it avoids the occurrence of gap and leads to mud loss, it can make in mud simultaneously full of bubble, reduce density, improve lubricity, be conducive to improve the revolving speed of drilling and the efficiency of drilling, under the action of dredging disconnector, broken sandstone can be crushed, it avoids broken sandstone impact drill bit and leads to bit freezing, it mentions The continuity of height drilling.
Description
Technical field
The present invention relates to fields of measurement, the electric drill device that particularly a kind of anti-mud loss bubble of measurement while drilling lubricates.
Background technique
Electric drill is that magnetic field intercepts workmanship operating is done using the rotor of electromagnetic rotating or electromagnetic reciprocating motor, is led to
The device for crossing rotating mechanism driving increases the power of drill bit with moving gear, to make drill bit scraping material surface, to drill
Equipment, wherein rock be electric drill be used for rock-boring equipment.
But when boulder bed close in drills, in order to avoid occurring the uniform drilling rod of unbalance stress in boring procedure
Jump is needed to fill mud to its inside, then is drilled, and since boulder bed grain structure is loose, granular size is uneven, is being bored
It easily causes mud during hole to be lost suddenly, causing broken sandstone to fill drill bit makes it above not mention and rotate, and influences to bore
The process in hole.
Summary of the invention
In view of the deficienciess of the prior art, it is an object of the present invention to provide a kind of anti-mud loss bubble lubrications of measurement while drilling
Electric drill device, to solve at present when boulder bed close in drills, in order to avoid occurring stress in boring procedure not
Uniform drilling rod jump, needs to fill mud to its inside, then drill, since boulder bed grain structure is loose, particle is big
Small unevenness easily causes mud in boring procedure and is lost suddenly, and causing broken sandstone to fill drill bit makes it above not mention and turn
It is dynamic, and the problem of the process of influence drilling.
To achieve the goals above, the present invention is to realize by the following technical solutions: a kind of anti-mud of measurement while drilling
It is lost the electric drill device of bubble lubrication, structure includes: Auxiliary support hand handle, main body, control hand handle, linking gripping head, drilling
Device, the right end of the Auxiliary support hand handle are nested in the left side of main body, and the right side of the main body and the left end of control hand handle are logical
Conducting wire electrical connection is crossed, the lower end of the linking gripping head is nested with drilling equipment, and the drilling equipment includes screw thread blade, fills out slurry
Steady reality device, engaging column, drill head, the screw thread blade are integrated with engaging column, the inner surface for filling out the steady real device of slurry
It fits with the outer surface of engaging column, the lower end of the engaging column is equipped with drill head and is integrated, the screw thread leaf
The lower section of piece, which is equipped with, fills out the steady real device of slurry.
To optimize above-mentioned technical proposal, the measure further taken are as follows:
It is preferred that the screw thread blade is formed by guiding spiral shell plate, pad stream device, brill diameter intermediate plate, reprimand flowing plate into, it is described to draw
It is nested with pad stream device to the upper surface of spiral shell plate, the upper surface for boring diameter intermediate plate fits with the lower surface for guiding spiral shell plate into, described
Denounce the top of flowing plate to be equipped with and bore diameter intermediate plate, the upper surface of the pad stream device is the work that cambered surface conveniently complies with that track plays turning pop-up
With irregular staggered setting, be capable of big degree avoids broken sandstone from sinking, and fills drill bit.
It is preferred that the steady real device of slurry of filling out is made of gunite gun, consolidation device, dredging disconnector, the gunite gun
It is nested in the left side of dredging disconnector, the outer surface of the inner surface and dredging disconnector of the consolidation device fits and same
On axis, the front and back end of the dredging disconnector is respectively the inside shape of arc, under the action of its centrifugation, can guide sand
Stone moves up.
It is preferred that the consolidation device is by push-tight wheel, push plate, connection frame, extension rod, pneumatic pedestal, connection tracheae
It forms, is nested in push plate below the push-tight wheel, the inner surface of the push plate and the outer surface of connection frame fit, described
The outer end of extension rod is nested on the inside of connection frame, the outer end mechanical connection of the inner end of the extension rod and pneumatic pedestal is described
The inner end of pneumatic pedestal is connected with tracheae is connect, and is respectively equipped with stomata around the push-tight wheel, can spray air outward.
It is preferred that the dredging disconnector by button stone implement, backward extrusion channel, multifrequency pulveriser, prolong logical device and form,
The button stone implement is set to the left side in backward extrusion channel, and the backward extrusion channel is embedded to be cased with multifrequency pulveriser, described to prolong logical device and set
In the right side in backward extrusion channel, the button stone implement is the iron wire of inside hook, can catch on different sandstone, by from
The effect of mental and physical efforts, which directs it towards, to move right.
Beneficial effect
A kind of electric drill device of the anti-mud loss bubble lubrication of measurement while drilling of the present invention, drills in boulder bed close in
When, the central point that drilling equipment alignment needs to drill is first passed through, then main body is started by control hand handle, rotates drilling equipment,
Main body is pulled down with two hands, rotates down drilling equipment, is driving drill head to start to drill, when drilling out aperture, is leading to
It crosses gunite gun and sprays mud into hole, when drilling still further below, air pressure is applied by the pneumatic pedestal to consolidation device, keeps extension rod outside
Stretching, extension drives connection frame, extension rod is pushed out, aperture inner wall is compacted, while under the action of push-tight wheel, presses increasing
Strength degree, enables Pebble gap to be compacted, and avoids mud loss, while ventilating to the stomata of push-tight wheel, makes to generate in slurry
Bubble reduces the density of mud, improves the lubricity of mud, is conducive to the efficiency for improving drilling, passes through during drilling
It guides spiral shell strip into and moves sandstone, catch on sandstone by button stone implement, under the influence of centrifugal force, sandstone is pushed to backward extrusion channel,
It is under the action of multifrequency pulveriser, sandstone is smalllyer broken, by centrifugal force, sandstone is booted up, sandstone is detached from
Portal, avoids the broken sandstone in boring procedure from filling drill bit, improve the efficiency of drilling.
The beneficial effect of generation is: under the action of gunite gun, can make up in time in mud loss, avoid mud
It is very few and influence drilling, under the action of consolidation device, can drilling while compacting hole inner wall, avoid the occurrence of gap and lead
Mud loss is caused, while can make to reduce density full of bubble in mud, improve lubricity, is conducive to the revolving speed for improving drilling
Broken sandstone can be crushed under the action of dredging disconnector with the efficiency of drilling, avoid broken sandstone impact drill bit and lead to card
It bores, improves the continuity of drilling.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, the attached drawing in describing below to embodiment is made in detail
It carefully introduces, allows other features, purposes and advantages of the invention will become more apparent with this:
Fig. 1 is a kind of structural schematic diagram of the electric drill device of the anti-mud loss bubble lubrication of measurement while drilling of the present invention.
Fig. 2 is the structural schematic diagram of drilling equipment of the present invention.
Fig. 3 is the detailed construction schematic diagram of screw thread blade of the present invention.
Fig. 4 is the schematic perspective view that the present invention fills out the steady real device of slurry.
Fig. 5 is the left side structure schematic diagram of consolidation device of the present invention.
Fig. 6 is to cut open structural schematic diagram on the right side of present invention dredging disconnector.
Description of symbols: Auxiliary support hand handle -1, main body -2, control hand handle -3, linking gripping head -4, drilling equipment -
5, screw thread blade -501, fill out the steady real device -502 of slurry, engaging column -503, drill head -504, guide spiral shell plate -5011, pad stream device-into
5012, diameter intermediate plate -5013, reprimand flowing plate -5014, gunite gun -5021, consolidation device -5022, dredging disconnector -5023, push-tight are bored
Wheel -50221, push plate -50222, connection frame -50223, extension rod -50224, pneumatic pedestal -50225, connection tracheae -50226,
Button stone implement -50231, multifrequency pulveriser -50233, prolongs logical device -50234 at backward extrusion channel -50232.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Fig. 1-Fig. 6 is please referred to, the present invention provides a kind of electric drill device of anti-mud loss bubble lubrication of measurement while drilling: it is tied
Structure includes: Auxiliary support hand handle 1, main body 2, control hand handle 3, linking gripping head 4, drilling equipment 5, the Auxiliary support hand handle 1
Right end be nested in the left side of main body 2, the right side of the main body 2 is electrically connected with the left end of control hand handle 3 by conducting wire, the rank
The lower end for connecing gripping head 4 is nested with drilling equipment 5；
The drilling equipment 5 includes screw thread blade 501, fills out slurry steady real device 502, engaging column 503, drill head 504；
The screw thread blade 501 is integrated with engaging column 503, the inner surface and rank for filling out the steady real device 502 of slurry
The outer surface for connecing column 503 fits, and the lower end of the engaging column 503 is equipped with drill head 504 and is integrated, the spiral shell
The lower section of line blade 501, which is equipped with, fills out the steady real device 502 of slurry.
It is preferred that the screw thread blade 501 is by guiding spiral shell plate 5011 into, pad stream device 5012, boring diameter intermediate plate 5013, reprimand
Flowing plate 5014 forms, and the upper surface for guiding spiral shell plate 5011 into is nested with pad stream device 5012, the upper table for boring diameter intermediate plate 5013
Face fits with the lower surface for guiding spiral shell plate 5011 into, and the top of the reprimand flowing plate 5014, which is equipped with, bores diameter intermediate plate 5013, the pad stream
The upper surface of device 5012 conveniently complies with track for cambered surface and plays the role of pop-up of turning, and irregular staggered setting being capable of big degree
Avoid broken sandstone from sinking, and fill drill bit.
It is preferred that the steady real device 502 of slurry of filling out is by gunite gun 5021, consolidation device 5022, dredging disconnector 5023
Composition, the gunite gun 5021 are nested in the left side of dredging disconnector 5023, and the inner surface of the consolidation device 5022 and dredging are de-
Outer surface from device 5023 fits and on the same axis, the front and back end of the dredging disconnector 5023 be respectively arc to
Interior shape can guide sandstone to move up under the action of its centrifugation, and front end is equipped with gunite gun 5021, be able to carry out
It is insufficient to avoid internal slurries for the whitewashing of small pressure, and sandstone is caused to fill.
It is preferred that the consolidation device 5022 is by push-tight wheel 50221, push plate 50222, connection frame 50223, extension rod
50224, pneumatic pedestal 50225, connection tracheae 50226 form, and the lower section of the push-tight wheel 50221 is nested in push plate 50222,
The outer surface of the inner surface and connection frame 50223 of the push plate 50222 fits, and the inside of the connection frame 50223 is nested in
The outer end of the outer end of extension rod 50224, the inner end of the extension rod 50224 and pneumatic pedestal 50225 is mechanically connected, described pneumatic
The inner end of pedestal 50225 is connected with tracheae 50226 is connect, and is respectively equipped with stomata, Neng Gouxiang around the push-tight wheel 50221
Outer ejection air, makes to generate bubble in mud, reduces the density of mud, improves its lubricity, is conducive to the efficiency for improving drilling,
The push plate 50222 can be pushed to outer edge, and compacting is close at the edge in hole, improves the air-tightness between cobble, avoids out
Show gap and leads to mud loss.
It is preferred that the dredging disconnector 5023 is ground by button stone implement 50231, backward extrusion channel 50232, multifrequency
Device 50233 prolongs the logical composition of device 50234, and the button stone implement 50231 is set to the left side in backward extrusion channel 50232, and the backward extrusion is logical
Road 50232 is embedded to be cased with multifrequency pulveriser 50233, and the right side prolonged logical device 50234 and be set to backward extrusion channel 50232 is described
The iron wire that stone implement 50231 is inside hook is detained, different sandstone can be caught on, be directed it towards by the effect of centrifugal force
It moves right, the multifrequency pulveriser 50233 is to be staggered up and down, when being powered, it can be made to generate multifrequency vibration, be conducive to
Sandstone is shatter, avoid drill bit from being blocked by biggish stone.
It is preferred that the screw thread blade 501 is staggered with the steady real device 502 of slurry is filled out, be conducive to guide sandstone to
Upper row avoids sandstone from sinking and fill drill bit, while being compacted hole wall edge, and hole wall is avoided to occur collapsing in later period drilling and split and fill out
Bury drill bit.
It uses principle: when boulder bed close in drills, first passing through the center that the alignment of drilling equipment 5 needs to drill
Point, then main body 2 is started by control hand handle 3, drilling equipment 5 is rotated, main body 2 is pulled down with two hands, makes drilling equipment 5
It rotates down, drill head 504 is being driven to start to drill, when drilling out aperture, mud is sprayed into hole by gunite gun 5021, then to
When lower drilling, air pressure is applied by the pneumatic pedestal 50225 to consolidation device 5022, flexes outward extension rod 50224, the company of drive
Frame 50223 is connect, extension rod 50224 is pushed out, aperture inner wall is compacted, while under the action of push-tight wheel 50221, will be added
Big compacting dynamics, enables Pebble gap to be compacted, avoids mud loss, while ventilating to the stomata of push-tight wheel 50221, make
Bubble is generated in slurry, reduces the density of mud, improves the lubricity of mud, is conducive to the efficiency for improving drilling, in the mistake of drilling
Sandstone is driven by guiding spiral shell plate 5011 into journey, catches on sandstone by button stone implement 50231, under the influence of centrifugal force, by sandstone
It is pushed to backward extrusion channel 50232, it is under the action of multifrequency pulveriser 50233, sandstone is smalllyer broken, passing through centrifugation
Power boots up sandstone, so that sandstone disengaging is portalled, avoids the broken sandstone in boring procedure from filling drill bit, improve drilling
Efficiency.
The present invention is combined with each other by above-mentioned component, and the beneficial effect of generation is energy under the action of gunite gun 5021
It is enough to be made up in time in mud loss, it avoids mud very few and influences drilling, under the action of consolidation device 5022, can bore
The inner wall of compacting hole while hole, avoids the occurrence of gap and leads to mud loss, while can make to reduce in mud full of bubble
Density improves lubricity, is conducive to improve the revolving speed of drilling and the efficiency of drilling, under the action of dredging disconnector 5023, energy
It is enough to crush broken sandstone, it avoids broken sandstone impact drill bit and leads to bit freezing, improve the continuity of drilling.
Specific embodiment described herein is only to give an example to the present invention.The technical field of the invention
Technical staff can make various modifications or additions to the described embodiments or be substituted in a similar manner, but
Without departing from of the invention or beyond the scope of the appended claims.
Claims (5)
1. a kind of electric drill device of the anti-mud loss bubble lubrication of measurement while drilling, structure includes: Auxiliary support hand handle (1), master
Body (2), control hand handle (3), linking gripping head (4), drilling equipment (5), it is characterised in that:
The right end of the Auxiliary support hand handle (1) is nested in the left side of main body (2), the right side of the main body (2) and control hand handle
(3) left end is electrically connected by conducting wire, and the lower end of linking gripping head (4) is nested with drilling equipment (5)；
The drilling equipment (5) includes screw thread blade (501), fills out the steady real device (502) of slurry, engaging column (503), drill head (504)；
The screw thread blade (501) is integrated with engaging column (503), the inner surface for filling out the steady real device (502) of slurry with
The outer surface of engaging column (503) fits, and the lower end of the engaging column (503) is equipped with drill head (504) and ties for integration
Structure, the lower section of the screw thread blade (501), which is equipped with, fills out the steady real device (502) of slurry.
2. a kind of electric drill device of the anti-mud loss bubble lubrication of measurement while drilling according to claim 1, it is characterised in that:
The screw thread blade (501) is by guiding spiral shell plate (5011), pad stream device (5012) into, boring diameter intermediate plate (5013), reprimand flowing plate (5014) group
Be nested with pad stream device (5012) at, the upper surface for guiding spiral shell plate (5011) into, the upper surface for boring diameter intermediate plate (5013) with
The lower surface for guiding spiral shell plate (5011) into fits, and the top of reprimand flowing plate (5014), which is equipped with, bores diameter intermediate plate (5013).
3. a kind of electric drill device of the anti-mud loss bubble lubrication of measurement while drilling according to claim 1, it is characterised in that:
It is described to fill out the steady real device (502) of slurry and be made of gunite gun (5021), consolidation device (5022), dredging disconnector (5023), the whitewashing
Device (5021) is nested in the left side of dredging disconnector (5023), the inner surface and dredging disconnector of the consolidation device (5022)
(5023) outer surface fits and on the same axis.
4. a kind of electric drill device of the anti-mud loss bubble lubrication of measurement while drilling according to claim 3, it is characterised in that:
The consolidation device (5022) is by push-tight wheel (50221), push plate (50222), connection frame (50223), extension rod (50224), pneumatic
Pedestal (50225), connection tracheae (50226) form, and are nested in push plate (50222) below the push-tight wheel (50221), institute
The outer surface for stating the inner surface and connection frame (50223) of push plate (50222) fits, and the inside of the connection frame (50223) is embedding
It is placed on the outer end of extension rod (50224), the inner end of the extension rod (50224) and the outer end machinery of pneumatic pedestal (50225) connect
It connects, the inner end of the pneumatic pedestal (50225) is connected with tracheae (50226) is connect.
5. a kind of electric drill device of the anti-mud loss bubble lubrication of measurement while drilling according to claim 3, it is characterised in that:
The dredging disconnector (5023) by button stone implement (50231), backward extrusion channel (50232), multifrequency pulveriser (50233), prolong it is logical
Device (50234) composition, button stone implement (50231) are set to the left side of backward extrusion channel (50232), the backward extrusion channel
(50232) it embeds and is cased with multifrequency pulveriser (50233), the right side prolonged logical device (50234) and be set to backward extrusion channel (50232)
Side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811423581.4A CN109339694B (en) | 2018-11-27 | 2018-11-27 | Electric drill device for preventing slurry loss and performing bubble lubrication during measurement while drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811423581.4A CN109339694B (en) | 2018-11-27 | 2018-11-27 | Electric drill device for preventing slurry loss and performing bubble lubrication during measurement while drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109339694A true CN109339694A (en) | 2019-02-15 |
| CN109339694B CN109339694B (en) | 2020-06-26 |
Family
ID=65318209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811423581.4A Active CN109339694B (en) | 2018-11-27 | 2018-11-27 | Electric drill device for preventing slurry loss and performing bubble lubrication during measurement while drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109339694B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685589A (en) * | 2019-09-19 | 2020-01-14 | 泉州市泉港区鑫悦盟工业科技有限公司 | Inner wall expands puncher for municipal works of tamping |
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| CN201574688U (en) * | 2009-12-18 | 2010-09-08 | 贵州航天天马机电科技有限公司 | Floating air distribution two-way impact type nonsmooth auger drill head |
| CN101768966A (en) * | 2010-01-26 | 2010-07-07 | 成都现代万通锚固技术有限公司 | Pressure grouting device for overall length spiral anchor rod and construction process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110685589A (en) * | 2019-09-19 | 2020-01-14 | 泉州市泉港区鑫悦盟工业科技有限公司 | Inner wall expands puncher for municipal works of tamping |
| CN110685589B (en) * | 2019-09-19 | 2020-11-24 | 温州博辉新材料科技有限公司 | Inner wall expands puncher for municipal works of tamping |
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| Publication number | Publication date |
|---|---|
| CN109339694B (en) | 2020-06-26 |
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