CN105421359A - Wedged locking port pi-shaped pile stirring and drilling machine - Google Patents
Wedged locking port pi-shaped pile stirring and drilling machine Download PDFInfo
- Publication number
- CN105421359A CN105421359A CN201511012135.0A CN201511012135A CN105421359A CN 105421359 A CN105421359 A CN 105421359A CN 201511012135 A CN201511012135 A CN 201511012135A CN 105421359 A CN105421359 A CN 105421359A
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- China
- Prior art keywords
- speed changer
- power transmission
- rotation
- transmission shaft
- soil
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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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/001—Drilling a non circular hole
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/165—Shapes polygonal
Abstract
The invention discloses a wedged locking port pi-shaped pile stirring and drilling machine. Multiple cement soil pi-shaped locking port piles by spacing with a pi-shaped locking port pile are manufactured; when the cement soil strength of the pi-shaped locking port piles at two sides reaches a certain strength, a pi-shaped hole is respectively formed in a gap between every two cement soil pi-shaped locking port piles according to a working mode of manufacturing pi-shaped holes by the drilling and stirring machine; and concrete is cast in the pi-shaped holes to form the concrete soil pi-shaped locking port piles, so that concave trapezoidal heads of the concrete pi-shaped locking port piles between every two cement soil pi-shaped locking port piles are matched with convex trapezoidal heads of the cement soil pi-shaped locking port piles, convex trapezoidal heads of the concrete pi-shaped locking port piles between every two cement soil pi-shaped locking port piles are matched with concave trapezoidal heads of the cement soil pi-shaped locking port piles, and a pile wall with radial arrangement and mutual locking of the cement soil pi-shaped locking port piles and the concrete pi-shaped locking port piles is formed for soil retaining and permeation prevention of a building foundation.
Description
Technical field
The present invention relates to a kind of agitation driller, the wedge shape fore shaft π stake agitation driller particularly used in a kind of building foundation engineering.
Background technology
At present, formed by the Soil-cement rig of other pattern, pile body is all the assembly of multiple cement-soil cylinder, is not the π shape cement-soil pile of mutual fore shaft.
Summary of the invention
The present invention compensate for above shortcoming, provides a kind of wedge shape fore shaft π stake agitation driller that can manufacture cement-soil π shape pile body and the mutual wedge shape fore shaft of concrete π shape pile body.
The present invention is achieved through the following technical solutions:
A kind of wedge shape fore shaft π stake agitation driller, the left part back of transverse arm one is fixed with transverse arm two, the right part back of transverse arm one is fixed with transverse arm three, form a π shape framework thus, the front end of transverse arm two is fixed in the lower end of press rods one, and the front end of transverse arm three is fixed in the lower end of press rods two, the middle lower portion of transverse arm one is fixed with column one, the lower end of column one is fixed with motor, the lower end of motor is fixed with speed changer one, in the middle of the left part of transverse arm one, lower end is fixed with column two, the lower end of column two is fixed with speed changer two, the left end bottom of transverse arm one is fixed with column four, the lower end of column four is fixed with speed changer four, in the middle of the right part of transverse arm one, lower end is fixed with column three, the lower end of column three is fixed with speed changer three, the right-hand member bottom of transverse arm one is fixed with column five, the lower end of column five is fixed with speed changer five, the rear end lower of transverse arm two is fixed with column six, the lower end of column six is fixed with speed changer six, the rear end lower of transverse arm three is fixed with column seven, the lower end of column seven is fixed with speed changer seven, the lower end of speed changer one, speed changer two, speed changer three, speed changer four, speed changer five, speed changer six, speed changer seven is respectively equipped with a drilling rod, and the lower end of each drilling rod is respectively equipped with a drill bit, a power transmission shaft one is respectively equipped with between speed changer one and speed changer two, between speed changer one and speed changer three, between speed changer two and speed changer four, between speed changer three and speed changer five, between speed changer two and speed changer six, between speed changer three and speed changer seven, a link arm is fixed on the middle both sides of each power transmission shaft one respectively, and the outer end of each link arm fixes a cursor respectively, the right back of speed changer five and right front export a power transmission shaft two respectively, and each power transmission shaft two right-hand member fixes a trapezoidal cutter one respectively, the left end of speed changer four exports a power transmission shaft three, and the left end of power transmission shaft three fixes a trapezoidal cutter two, the cross section of trapezoidal cutter one is trapezoidal, and the cross section of trapezoidal cutter two is trapezoidal.
The present invention has following feature:
The present invention can manufacture the piling wall of cement-soil π shape pile body and the mutual wedge shape fore shaft of concrete π shape pile body, for gear soil, the antiseepage of building foundation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated:
Fig. 1 is elevation of the present invention;
Fig. 2 is A-A direction view of Fig. 1;
Fig. 3 is B-B view of Fig. 1;
Fig. 4 is C-C direction view of Fig. 1;
Fig. 5 is the fore shaft figure of multiple π shape locking notch pile.
In figure: 1, press rods one, 2, press rods two, 3, speed changer one, 4, speed changer two, 5, speed changer three, 6, speed changer four, 7, speed changer five, 8, power transmission shaft one, 9, cursor, 10, column one, 11, motor, 12, drilling rod, 13, drill bit, 14, power transmission shaft two, 15, trapezoidal cutter one, 16, transverse arm one, 17, column two, 18, column three, 19, column four, 20, column five, 21, transverse arm two, 22, transverse arm three, 23, column six, 24, column seven, 25, speed changer six, 26, speed changer seven, 27, link arm, 28, power transmission shaft three, 29, trapezoidal cutter two.
Detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present invention, and the left part back of this embodiment transverse arm 1 is fixed with transverse arm 2 21, the right part back of transverse arm one is fixed with transverse arm 3 22, thus transverse arm one, transverse arm two, transverse arm three form a π shape framework, the front end of transverse arm two is fixed in the lower end of press rods 1, and the front end of transverse arm three is fixed in the lower end of press rods 22, the middle lower portion of transverse arm one is fixed with column 1, the lower end of column one is fixed with motor 11, the lower end of motor is fixed with speed changer 1, in the middle of the left part of transverse arm one, lower end is fixed with column 2 17, the lower end of column two is fixed with speed changer 24, the left end bottom of transverse arm one is fixed with column 4 19, the lower end of column four is fixed with speed changer 46, in the middle of the right part of transverse arm one, lower end is fixed with column 3 18, the lower end of column three is fixed with speed changer 35, the right-hand member bottom of transverse arm one is fixed with column 5 20, the lower end of column five is fixed with speed changer 57, the rear end lower of transverse arm two is fixed with column 6 23, the lower end of column six is fixed with speed changer 6 25, the rear end lower of transverse arm three is fixed with column 7 24, the lower end of column seven is fixed with speed changer 7 26, the lower end of speed changer one, speed changer two, speed changer three, speed changer four, speed changer five, speed changer six, speed changer seven is respectively equipped with a drilling rod 12, and the lower end of each drilling rod is respectively equipped with a drill bit 13, a power transmission shaft 1 is respectively equipped with between speed changer one and speed changer two, between speed changer one and speed changer three, between speed changer two and speed changer four, between speed changer three and speed changer five, between speed changer two and speed changer six, between speed changer three and speed changer seven, a link arm 27 is fixed on the middle both sides of each power transmission shaft one respectively, and the outer end of each link arm fixes a cursor 9 respectively, the right back of speed changer five and right front export a power transmission shaft 2 14 respectively, and each power transmission shaft two right-hand member fixes a trapezoidal cutter 1 respectively, the left end of speed changer four exports a power transmission shaft 3 28, and the left end of power transmission shaft three fixes a trapezoidal cutter 2 29, the cross section of trapezoidal cutter one is trapezoidal, and the cross section of trapezoidal cutter two is trapezoidal.
Cursor on left and right, rear three power transmission shafts one of speed changer two differs certain angle in rotation, is independent of each other mutually in rotation.
Cursor on left and right, rear three power transmission shafts one of speed changer three differs certain angle in rotation, is independent of each other mutually in rotation.
The present invention manufactures the working method of cement-soil π shape stake: during work, high-pressure pump injects cement paste respectively to each drill bit, motor drive speed transmission one operates, drive speed transmission two and speed changer three operate the on-stream rotation by two power transmission shafts one in left and right of speed changer one respectively, speed changer two is on-stream by left, drive speed transmission four and speed changer six operate respectively in the rotation of latter two power transmission shaft one, speed changer three is on-stream by right, drive speed transmission five and speed changer seven operate respectively in the rotation of latter two power transmission shaft one, speed changer five drives the relative synchronous axial system of power transmission shaft two of the power transmission shaft two of right back and right front respectively in operation process, the on-stream driving power transmission shaft three of speed changer four rotates, speed changer one, speed changer two, speed changer three, speed changer four, speed changer five, speed changer six, speed changer seven drive drill bit rotational respectively by the drilling rod of its lower end, and the earth of its lower end and cement paste stir by seven drill bits in rotation, six power transmission shafts one drive two link arms on each power transmission shaft one to drive cursor around power transmission shaft one rotation respectively in rotation, the part earth and cement paste that are less than bit diameter between every two drill bits stir by cursor in rotation process, become π shape cement earth pile thus, two power transmission shafts two drive trapezoidal cutter one rotation on power transmission shaft two respectively in rotation, the soil body of the termination of π shape stake right part and cement paste are stirred into recessed trapezoidal termination by trapezoidal cutter one in rotation, power transmission shaft three drives trapezoidal cutter two rotation of power transmission shaft three left end in rotation, the soil body of π shape stake left part termination and cement paste are stirred into convex trapezoidal termination by trapezoidal cutter two in rotation, the recessed trapezoidal termination of right part and the convex trapezoidal termination of left part match, press rods one, press rods two are compressed into process and are formed left end with convex trapezoidal termination, right-hand member with the π shape locking notch pile of recessed trapezoidal termination downwards.
The present invention manufactures the working method of concrete π shape stake: during work, high-pressure pump injects water under high pressure respectively to each drill bit, motor drive speed transmission one operates, drive speed transmission two and speed changer three operate the on-stream rotation by two power transmission shafts one in left and right of speed changer one respectively, speed changer two is on-stream by left, drive speed transmission four and speed changer six operate respectively in the rotation of latter two power transmission shaft one, speed changer three is on-stream by right, drive speed transmission five and speed changer seven operate respectively in the rotation of latter two power transmission shaft one, speed changer five drives the relative synchronous axial system of power transmission shaft two of the power transmission shaft two of right back and right front respectively in operation process, the on-stream driving power transmission shaft three of speed changer four rotates, speed changer one, speed changer two, speed changer three, speed changer four, speed changer five, speed changer six, speed changer seven drive drill bit rotational respectively by the drilling rod of its lower end, and the soil cutting of its lower end stirs by seven drill bits in rotation, six power transmission shafts one drive two link arms on each power transmission shaft one to drive cursor around power transmission shaft one rotation respectively in rotation, and the part soil cutting being less than bit diameter between every two drill bits stirs by cursor in rotation process, two power transmission shafts two drive trapezoidal cutter one rotation on power transmission shaft two respectively in rotation, trapezoidal cutter one in rotation by recessed for front lower for the soil body of the termination of right part one-tenth trapezoidal termination, power transmission shaft three drives trapezoidal cutter two rotation of power transmission shaft three left end in rotation, trapezoidal cutter two is by convex for front lower for the soil body of left part termination one-tenth trapezoidal termination in rotation, and the recessed trapezoidal termination of right part and the convex trapezoidal termination of left part match, the soil body cut is mixed in mud, and water under high pressure constantly injects, and mud constantly flows out from hole, and press rods one, press rods two are compressed into process and formed left end with convex trapezoidal termination, right-hand member with the π shape hole of recessed trapezoidal termination downwards.
The working method that the present invention manufactures the piling wall of π shape cement earth pile and the mutual fore shaft of π shape concrete pile is as follows: first in the original position needing pile axis, a cement-soil π shape locking notch pile is manufactured by the working method that agitation driller manufactures cement earth pile according to above-mentioned agitation driller, on the right side of this π shape locking notch pile, the distance of the π shape locking notch pile in interval manufactures second cement-soil π shape locking notch pile again, so manufactures multiple cement-soil π shape locking notch piles of the π shape locking notch pile distance in multiple interval, when the soil cement intensity of the π shape locking notch pile on both sides reaches some strength, the working method manufacturing π shape hole according to above-mentioned agitation driller in spacing again between every two cement-soil π shape locking notch piles manufactures a π shape hole respectively, concreting in this π shape hole, form concrete π shape locking notch pile, the recessed trapezoidal termination of the concrete π shape locking notch pile between every two cement-soil π shape locking notch piles is made to be fit to the convex trapezoidal termination of cement-soil π shape locking notch pile, the convex trapezoidal termination of the concrete π shape locking notch pile between every two cement-soil π shape locking notch piles is fit to the recessed trapezoidal termination of cement-soil π shape locking notch pile, formation cement-soil π shape locking notch pile like this and concrete π shape locking notch pile are spaced the piling wall of mutual fore shaft, for the gear soil of building foundation, antiseep.
Claims (1)
1. a wedge shape fore shaft π stake agitation driller, the left part back of transverse arm 1 is fixed with transverse arm 2 21, the right part back of transverse arm one is fixed with transverse arm 3 22, thus transverse arm one, transverse arm two, transverse arm three form a π shape framework, the front end of transverse arm two is fixed in the lower end of press rods 1, and the front end of transverse arm three is fixed in the lower end of press rods 22, the middle lower portion of transverse arm one is fixed with column 1, the lower end of column one is fixed with motor 11, the lower end of motor is fixed with speed changer 1, in the middle of the left part of transverse arm one, lower end is fixed with column 2 17, the lower end of column two is fixed with speed changer 24, the left end bottom of transverse arm one is fixed with column 4 19, the lower end of column four is fixed with speed changer 46, in the middle of the right part of transverse arm one, lower end is fixed with column 3 18, the lower end of column three is fixed with speed changer 35, the right-hand member bottom of transverse arm one is fixed with column 5 20, the lower end of column five is fixed with speed changer 57, the rear end lower of transverse arm two is fixed with column 6 23, the lower end of column six is fixed with speed changer 6 25, the rear end lower of transverse arm three is fixed with column 7 24, the lower end of column seven is fixed with speed changer 7 26, the lower end of speed changer one, speed changer two, speed changer three, speed changer four, speed changer five, speed changer six, speed changer seven is respectively equipped with a drilling rod 12, and the lower end of each drilling rod is respectively equipped with a drill bit 13, a power transmission shaft 1 is respectively equipped with between speed changer one and speed changer two, between speed changer one and speed changer three, between speed changer two and speed changer four, between speed changer three and speed changer five, between speed changer two and speed changer six, between speed changer three and speed changer seven, a link arm 27 is fixed on the middle both sides of each power transmission shaft one respectively, and the outer end of each link arm fixes a cursor 9 respectively, the right back of speed changer five and right front export a power transmission shaft 2 14 respectively, and each power transmission shaft two right-hand member fixes a trapezoidal cutter 1 respectively, the left end of speed changer four exports a power transmission shaft 3 28, and the left end of power transmission shaft three fixes a trapezoidal cutter 2 29, the cross section of trapezoidal cutter one is trapezoidal, and the cross section of trapezoidal cutter two is trapezoidal,
It is characterized in that: agitation driller manufactures the working method of cement-soil π shape stake: during work, high-pressure pump injects cement paste respectively to each drill bit, motor drive speed transmission one operates, drive speed transmission two and speed changer three operate the on-stream rotation by two power transmission shafts one in left and right of speed changer one respectively, speed changer two is on-stream by left, drive speed transmission four and speed changer six operate respectively in the rotation of latter two power transmission shaft one, speed changer three is on-stream by right, drive speed transmission five and speed changer seven operate respectively in the rotation of latter two power transmission shaft one, speed changer five drives the relative synchronous axial system of power transmission shaft two of the power transmission shaft two of right back and right front respectively in operation process, the on-stream driving power transmission shaft three of speed changer four rotates, speed changer one, speed changer two, speed changer three, speed changer four, speed changer five, speed changer six, speed changer seven drive drill bit rotational respectively by the drilling rod of its lower end, and the earth of its lower end and cement paste stir by seven drill bits in rotation, six power transmission shafts one drive two link arms on each power transmission shaft one to drive cursor around power transmission shaft one rotation respectively in rotation, the part earth and cement paste that are less than bit diameter between every two drill bits stir by cursor in rotation process, become π shape cement earth pile thus, two power transmission shafts two drive trapezoidal cutter one rotation on power transmission shaft two respectively in rotation, the soil body of the termination of π shape stake right part and cement paste are stirred into recessed trapezoidal termination by trapezoidal cutter one in rotation, power transmission shaft three drives trapezoidal cutter two rotation of power transmission shaft three left end in rotation, the soil body of π shape stake left part termination and cement paste are stirred into convex trapezoidal termination by trapezoidal cutter two in rotation, the recessed trapezoidal termination of right part and the convex trapezoidal termination of left part match, press rods one, press rods two are compressed into process and are formed left end with convex trapezoidal termination, right-hand member with the π shape locking notch pile of recessed trapezoidal termination downwards,
Agitation driller manufactures the working method of concrete π shape stake: during work, high-pressure pump injects water under high pressure respectively to each drill bit, motor drive speed transmission one operates, drive speed transmission two and speed changer three operate the on-stream rotation by two power transmission shafts one in left and right of speed changer one respectively, speed changer two is on-stream by left, drive speed transmission four and speed changer six operate respectively in the rotation of latter two power transmission shaft one, speed changer three is on-stream by right, drive speed transmission five and speed changer seven operate respectively in the rotation of latter two power transmission shaft one, speed changer five drives the relative synchronous axial system of power transmission shaft two of the power transmission shaft two of right back and right front respectively in operation process, the on-stream driving power transmission shaft three of speed changer four rotates, speed changer one, speed changer two, speed changer three, speed changer four, speed changer five, speed changer six, speed changer seven drive drill bit rotational respectively by the drilling rod of its lower end, and the soil cutting of its lower end stirs by seven drill bits in rotation, six power transmission shafts one drive two link arms on each power transmission shaft one to drive cursor around power transmission shaft one rotation respectively in rotation, and the part soil cutting being less than bit diameter between every two drill bits stirs by cursor in rotation process, two power transmission shafts two drive trapezoidal cutter one rotation on power transmission shaft two respectively in rotation, trapezoidal cutter one in rotation by recessed for front lower for the soil body of the termination of right part one-tenth trapezoidal termination, power transmission shaft three drives trapezoidal cutter two rotation of power transmission shaft three left end in rotation, trapezoidal cutter two is by convex for front lower for the soil body of left part termination one-tenth trapezoidal termination in rotation, and the recessed trapezoidal termination of right part and the convex trapezoidal termination of left part match, the soil body cut is mixed in mud, and water under high pressure constantly injects, and mud constantly flows out from hole, and press rods one, press rods two are compressed into process and formed left end with convex trapezoidal termination, right-hand member with the π shape hole of recessed trapezoidal termination downwards,
Agitation driller manufactures the working method of the piling wall of π shape cement earth pile and the mutual fore shaft of π shape concrete pile: first in the original position needing pile axis, a cement-soil π shape locking notch pile is manufactured by the working method that agitation driller manufactures cement earth pile according to above-mentioned agitation driller, on the right side of this π shape locking notch pile, the distance of the π shape locking notch pile in interval manufactures second cement-soil π shape locking notch pile again, so manufactures multiple cement-soil π shape locking notch piles of the π shape locking notch pile distance in multiple interval, when the soil cement intensity of the π shape locking notch pile on both sides reaches some strength, the working method manufacturing π shape hole according to above-mentioned agitation driller in spacing again between every two cement-soil π shape locking notch piles manufactures a π shape hole respectively, concreting in this π shape hole, form concrete π shape locking notch pile, the recessed trapezoidal termination of the concrete π shape locking notch pile between every two cement-soil π shape locking notch piles is made to be fit to the convex trapezoidal termination of cement-soil π shape locking notch pile, the convex trapezoidal termination of the concrete π shape locking notch pile between every two cement-soil π shape locking notch piles is fit to the recessed trapezoidal termination of cement-soil π shape locking notch pile, formation cement-soil π shape locking notch pile like this and concrete π shape locking notch pile are spaced the piling wall of mutual fore shaft, for the gear soil of building foundation, antiseep.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511012135.0A CN105421359A (en) | 2015-12-31 | 2015-12-31 | Wedged locking port pi-shaped pile stirring and drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511012135.0A CN105421359A (en) | 2015-12-31 | 2015-12-31 | Wedged locking port pi-shaped pile stirring and drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105421359A true CN105421359A (en) | 2016-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511012135.0A Withdrawn CN105421359A (en) | 2015-12-31 | 2015-12-31 | Wedged locking port pi-shaped pile stirring and drilling machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN105421359A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5007770A (en) * | 1989-12-04 | 1991-04-16 | Simmons Robert J | Method and apparatus for constructing a subsurface retaining wall |
| CN104831710A (en) * | 2015-06-05 | 2015-08-12 | 刘玉燕 | Wedge-shaped fore-shaft pile forming device |
| CN105113494A (en) * | 2015-08-09 | 2015-12-02 | 刘玉秋 | N-shaped retaining pile forming machine |
| CN105133583A (en) * | 2015-08-09 | 2015-12-09 | 刘玉燕 | Using method for socket pile molding device |
| CN105421433A (en) * | 2015-12-31 | 2016-03-23 | 刘玉秋 | Mixing rig for n-shaped locking piles in wedge-shaped locking |
| CN105507299A (en) * | 2015-12-31 | 2016-04-20 | 刘玉秋 | Wedge-shaped locking notch Pi (pi) pile mixing drilling machine |
-
2015
- 2015-12-31 CN CN201511012135.0A patent/CN105421359A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5007770A (en) * | 1989-12-04 | 1991-04-16 | Simmons Robert J | Method and apparatus for constructing a subsurface retaining wall |
| CN104831710A (en) * | 2015-06-05 | 2015-08-12 | 刘玉燕 | Wedge-shaped fore-shaft pile forming device |
| CN105113494A (en) * | 2015-08-09 | 2015-12-02 | 刘玉秋 | N-shaped retaining pile forming machine |
| CN105133583A (en) * | 2015-08-09 | 2015-12-09 | 刘玉燕 | Using method for socket pile molding device |
| CN105421433A (en) * | 2015-12-31 | 2016-03-23 | 刘玉秋 | Mixing rig for n-shaped locking piles in wedge-shaped locking |
| CN105507299A (en) * | 2015-12-31 | 2016-04-20 | 刘玉秋 | Wedge-shaped locking notch Pi (pi) pile mixing drilling machine |
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Application publication date: 20160323 |