CN105568968A - Wedge-shaped inserting-buckling T-shaped pile drilling and stirring machine - Google Patents
Wedge-shaped inserting-buckling T-shaped pile drilling and stirring machine Download PDFInfo
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- CN105568968A CN105568968A CN201511012124.2A CN201511012124A CN105568968A CN 105568968 A CN105568968 A CN 105568968A CN 201511012124 A CN201511012124 A CN 201511012124A CN 105568968 A CN105568968 A CN 105568968A
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- headstock
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- line shaft
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- 238000003756 stirring Methods 0.000 title claims abstract description 25
- 238000005553 drilling Methods 0.000 title claims abstract description 14
- 239000002689 soil Substances 0.000 claims abstract description 44
- 239000004568 cement Substances 0.000 claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000011440 grout Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
-
- 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
- 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
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/001—Drilling a non circular hole
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
Disclosed is a wedge-shaped inserting-buckling T-shaped pile drilling and stirring machine. A plurality of cement T-shaped inserting-buckling piles spaced by the distance of one T-shaped inserting-buckling pile are manufactured. When the cement strength of the T-shaped inserting-buckling piles on two sides reaches certain strength, a T-shaped hole is manufactured in the interval between every two cement T-shaped inserting-buckling piles according to the above mode of manufacturing the T-shaped holes with the drilling and stirring machine, and concrete is poured in the T-shaped holes, so that concrete T-shaped inserting-buckling piles are formed. A concave-wedge-shaped head of the concrete T-shaped inserting-buckling pile between every two cement T-shaped inserting-buckling piles is matched with convex-wedge-shaped heads of the cement T-shaped inserting-buckling piles, and a convex-wedge-shaped head of the concrete T-shaped inserting-buckling pile between every two cement T-shaped inserting-buckling piles is matched with concave-wedge-shaped heads of the cement T-shaped inserting-buckling piles. In this way, a pile wall in which the cement T-shaped inserting-buckling piles and the concrete T-shaped inserting-buckling piles are arranged at intervals and are in mutual inserting-buckling connection is formed and used for blocking soil and preventing leakage for a building foundation.
Description
Technical field
The present invention relates to a kind of boring and stir machine, the wedge shape eye-splice T-shaped stake particularly used in a kind of building foundation engineering is bored and is stirred machine.
Background technology
It is by the multiple drill bit rotational of power drive that cement earth boring auger stirs machine, the earth of drill bit bottom cuts and stirs into cement earth pile with cement paste by multiple drill bit in rotation process, at present, the cement earth boring auger of other pattern stirs the assembly that pile body formed by machine is all multiple cement-soil cylinder, is not the T-shaped cement-soil pile of mutual eye-splice.
Summary of the invention
The present invention compensate for above shortcoming, provides a kind of wedge shape eye-splice T-shaped stake that can manufacture cement-soil T-shaped pile body and the mutual wedge shape eye-splice of concrete T-shaped pile body and bores and stir machine.
The present invention is achieved through the following technical solutions:
The stake of a kind of wedge shape eye-splice T-shaped is bored and is stirred machine, and the front end of cross bar two is fixed on the centre of cross bar one, is formed a T steel structure thus, and the center of gravity of T steel structure is fixed in the lower end of support bar; The middle lower end of cross bar one is fixed with column three, the lower end of column three is fixed with motor, the lower end of motor is fixed with headstock three, the left end bottom of cross bar one is fixed with column one, the lower end of column one is fixed with headstock one, and the right-hand member bottom of cross bar one is fixed with column two, and the lower end of column two is fixed with headstock two, the rear end lower of cross bar two is fixed with column four, and the lower end of column four is fixed with headstock four; The lower end of headstock one, headstock two, headstock three, headstock four is respectively equipped with a drilling rod, and the lower end of each drilling rod is respectively equipped with a drill bit; A line shaft one is respectively equipped with between headstock three and headstock one, between headstock three and headstock two, between headstock three and headstock four, a linking arm is fixed on the middle both sides of every line shaft one respectively, and the outer end of each linking arm fixes a mixing arm respectively; The right back of headstock two and right front export a line shaft two respectively, and each line shaft two right-hand member fixes a trapezoidal cutter one respectively; The left end of headstock one exports a line shaft three, and the left end of line shaft three fixes a trapezoidal cutter two.
The present invention has following feature:
The present invention can manufacture the piling wall of cement-soil T-shaped pile body and the mutual wedge shape eye-splice of concrete T-shaped pile body, for gear soil, the antiseep 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 view of Fig. 1;
Fig. 3 is B-B direction view of Fig. 1;
Fig. 4 is C-C direction view of Fig. 1;
Fig. 5 is the eye-splice figure of multiple T-shaped eye-splice stake.
In figure: 1, support bar, 2, motor, 3, headstock three, 4, headstock one, 5, headstock two, 6, cross bar one, 7, column three, 8, line shaft one, 9, mixing arm, 10, column one, 11, column two, 12, drilling rod, 13, drill bit, 14, line shaft two, 15, trapezoidal cutter one, 16, linking arm, 17, cross bar two, 18, column four, 19, headstock four, 20, line shaft three, 21, trapezoidal cutter two.
Detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present invention, and the front end of this embodiment cross bar 2 17 is fixed on the centre of cross bar 1, is formed a T steel structure thus, and the center of gravity of T steel structure is fixed in the lower end of support bar 1; The middle lower end of cross bar one is fixed with column 37, the lower end of column three is fixed with motor 2, the lower end of motor is fixed with headstock 33, the left end bottom of cross bar one is fixed with column 1, the lower end of column one is fixed with headstock 1, and the right-hand member bottom of cross bar one is fixed with column 2 11, and the lower end of column two is fixed with headstock 25, the rear end lower of cross bar two is fixed with column 4 18, and the lower end of column four is fixed with headstock 4 19; The lower end of headstock one, headstock two, headstock three, headstock four 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 line shaft 1 is respectively equipped with between headstock three and headstock one, between headstock three and headstock two, between headstock three and headstock four, a linking arm 16 is fixed on the middle both sides of every line shaft one respectively, and the outer end of each linking arm fixes a mixing arm 9 respectively; The right back of headstock two and right front export a line shaft 2 14 respectively, and each line shaft two right-hand member fixes a trapezoidal cutter 1 respectively; The left end of headstock one exports a line shaft 3 20, and the left end of line shaft three fixes a trapezoidal cutter 2 21; The cross section of trapezoidal cutter one is trapezoidal, and the cross section of trapezoidal cutter two is trapezoidal.
Mixing arm on three line shafts one differs certain angle in rotation, is independent of each other mutually in rotation.
The present invention manufactures the working method of cement-soil T-shaped stake: during work, grouting pump is to each drill bit grout injection respectively, motor drives headstock three to operate, headstock three operates respectively by the rotating drive headstock one of left and right, rear three line shafts one, headstock two, headstock four in operation process, headstock two drives the relative synchronous axial system of line shaft two of the line shaft two of right back and right front respectively in operation process, and headstock one drives line shaft three rotation of its left end in operation process, headstock one, headstock two, headstock three, headstock four 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 four drill bits in rotation, three line shafts one drive two linking arms on each line shaft one to drive the rotation of mixing arm moving mechanical axis one respectively in rotation, the part earth and cement paste that are less than bit diameter between every two drill bits stir by mixing arm in rotation process, become T-shaped cement earth pile thus, two line shafts two drive trapezoidal cutter one rotation on line shaft two respectively in rotation, the soil body of the termination of right part and cement paste are stirred into recessed sphenocephaly by trapezoidal cutter one in rotation, line shaft three drives trapezoidal cutter two rotation on line shaft three in rotation, the soil body of the termination of left part and cement paste are stirred into convex sphenocephaly by trapezoidal cutter two in rotation, the recessed sphenocephaly of right part and the convex sphenocephaly of left part match, support bar is compressed into process and is formed left end with convex sphenocephaly, right-hand member with the eye-splice stake of recessed sphenocephaly downwards.
The present invention manufactures the working method of concrete T-shaped pile: during work, grouting pump pours into water under high pressure respectively to each drill bit, motor drives headstock three to operate, headstock three operates respectively by the rotating drive headstock one of left and right, rear three line shafts one, headstock two, headstock four in operation process, headstock two drives the relative synchronous axial system of line shaft two of the line shaft two of right back and right front respectively in operation process, and headstock one drives line shaft three rotation of its left end in operation process; Headstock one, headstock two, headstock three, headstock four drive drill bit rotational respectively by the drilling rod of its lower end, and the soil cutting of its lower end stirs by four drill bits in rotation; Three line shafts one drive two linking arms on each line shaft one to drive the rotation of mixing arm moving mechanical axis one respectively in rotation, and the part soil cutting being less than bit diameter between every two drill bits stirs by mixing arm in rotation process; Two line shafts two drive trapezoidal cutter one rotation on line shaft two respectively in rotation, the soil cutting of the termination of right part is become recessed sphenocephaly by trapezoidal cutter one in rotation, line shaft three drives trapezoidal cutter two rotation on line shaft three in rotation, the soil cutting of the termination of left part is become convex sphenocephaly by trapezoidal cutter two in rotation, and the recessed sphenocephaly of right part and the convex sphenocephaly 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 support bar is compressed into process and formed left end with convex sphenocephaly, right-hand member with the T-shaped hole of recessed sphenocephaly downwards.
The working method that the present invention manufactures the piling wall of T-shaped cement earth pile and the mutual eye-splice of T-shaped concrete pile is as follows: first in the original position needing pile axis, stir machine according to above-mentioned brill and manufacture the working method of cement earth pile with boring the machine that stirs and manufacture a cement-soil T-shaped eye-splice stake, on the right side of this T-shaped eye-splice stake, the distance of the T-shaped eye-splice stake in interval manufactures second cement-soil T-shaped eye-splice stake again, so manufacture one, multiple interval T-shaped eye-splice pilespacing from multiple cement-soil T-shaped eye-splice stakes, when the soil cement intensity of the T-shaped eye-splice stake on both sides reaches some strength, stirring machine according to above-mentioned brill and manufacture the working method in T-shaped hole and manufacture a T-shaped hole respectively in the spacing again between every two cement-soil T-shaped eye-splice stakes, concreting in this T-shaped hole, form concrete T-shaped eye-splice stake, the recessed sphenocephaly of the concrete T-shaped eye-splice stake between every two cement-soil T-shaped eye-splice stakes is made to be fit to the convex sphenocephaly of cement-soil T-shaped eye-splice stake, the convex sphenocephaly of the concrete T-shaped eye-splice stake between every two cement-soil T-shaped eye-splice stakes is fit to the recessed sphenocephaly of cement-soil T-shaped eye-splice stake, formation cement-soil T-shaped like this eye-splice stake and concrete T-shaped eye-splice stake are spaced the piling wall of mutual eye-splice, for the gear soil of building foundation, antiseep.
Claims (1)
1. the stake of wedge shape eye-splice T-shaped is bored and is stirred a machine, and the front end of cross bar 2 17 is fixed on the centre of cross bar 1, is formed a T steel structure thus, and the center of gravity of T steel structure is fixed in the lower end of support bar 1; The middle lower end of cross bar one is fixed with column 37, the lower end of column three is fixed with motor 2, the lower end of motor is fixed with headstock 33, the left end bottom of cross bar one is fixed with column 1, the lower end of column one is fixed with headstock 1, and the right-hand member bottom of cross bar one is fixed with column 2 11, and the lower end of column two is fixed with headstock 25, the rear end lower of cross bar two is fixed with column 4 18, and the lower end of column four is fixed with headstock 4 19; The lower end of headstock one, headstock two, headstock three, headstock four 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 line shaft 1 is respectively equipped with between headstock three and headstock one, between headstock three and headstock two, between headstock three and headstock four, a linking arm 16 is fixed on the middle both sides of every line shaft one respectively, and the outer end of each linking arm fixes a mixing arm 9 respectively; The right back of headstock two and right front export a line shaft 2 14 respectively, and each line shaft two right-hand member fixes a trapezoidal cutter 1 respectively; The left end of headstock one exports a line shaft 3 20, and the left end of line shaft three fixes a trapezoidal cutter 2 21; The cross section of trapezoidal cutter one is trapezoidal, and the cross section of trapezoidal cutter two is trapezoidal; It is characterized in that:
Bore the working method that the machine that stirs manufactures the stake of cement-soil T-shaped: during work, grouting pump is to each drill bit grout injection respectively, motor drives headstock three to operate, headstock three operates respectively by the rotating drive headstock one of left and right, rear three line shafts one, headstock two, headstock four in operation process, headstock two drives the relative synchronous axial system of line shaft two of the line shaft two of right back and right front respectively in operation process, and headstock one drives line shaft three rotation of its left end in operation process, headstock one, headstock two, headstock three, headstock four 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 four drill bits in rotation, three line shafts one drive two linking arms on each line shaft one to drive the rotation of mixing arm moving mechanical axis one respectively in rotation, the part earth and cement paste that are less than bit diameter between every two drill bits stir by mixing arm in rotation process, become T-shaped cement earth pile thus, two line shafts two drive trapezoidal cutter one rotation on line shaft two respectively in rotation, the soil body of the termination of right part and cement paste are stirred into recessed sphenocephaly by trapezoidal cutter one in rotation, line shaft three drives trapezoidal cutter two rotation on line shaft three in rotation, the soil body of the termination of left part and cement paste are stirred into convex sphenocephaly by trapezoidal cutter two in rotation, the recessed sphenocephaly of right part and the convex sphenocephaly of left part match, support bar is compressed into process and is formed left end with convex sphenocephaly, right-hand member with the eye-splice stake of recessed sphenocephaly downwards,
Bore the working method that the machine that stirs manufactures concrete T-shaped pile: during work, grouting pump pours into water under high pressure respectively to each drill bit, motor drives headstock three to operate, headstock three operates respectively by the rotating drive headstock one of left and right, rear three line shafts one, headstock two, headstock four in operation process, headstock two drives the relative synchronous axial system of line shaft two of the line shaft two of right back and right front respectively in operation process, and headstock one drives line shaft three rotation of its left end in operation process; Headstock one, headstock two, headstock three, headstock four drive drill bit rotational respectively by the drilling rod of its lower end, and the soil cutting of its lower end stirs by four drill bits in rotation; Three line shafts one drive two linking arms on each line shaft one to drive the rotation of mixing arm moving mechanical axis one respectively in rotation, and the part soil cutting being less than bit diameter between every two drill bits stirs by mixing arm in rotation process; Two line shafts two drive trapezoidal cutter one rotation on line shaft two respectively in rotation, the soil cutting of the termination of right part is become recessed sphenocephaly by trapezoidal cutter one in rotation, line shaft three drives trapezoidal cutter two rotation on line shaft three in rotation, the soil cutting of the termination of left part is become convex sphenocephaly by trapezoidal cutter two in rotation, and the recessed sphenocephaly of right part and the convex sphenocephaly 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 support bar is compressed into process and formed left end with convex sphenocephaly, right-hand member with the T-shaped hole of recessed sphenocephaly downwards;
The working method of boring the piling wall stirring machine manufacture T-shaped cement earth pile and the mutual eye-splice of T-shaped concrete pile is as follows: first in the original position needing pile axis, stir machine according to above-mentioned brill and manufacture the working method of cement earth pile with boring the machine that stirs and manufacture a cement-soil T-shaped eye-splice stake, on the right side of this T-shaped eye-splice stake, the distance of the T-shaped eye-splice stake in interval manufactures second cement-soil T-shaped eye-splice stake again, so manufacture one, multiple interval T-shaped eye-splice pilespacing from multiple cement-soil T-shaped eye-splice stakes, when the soil cement intensity of the T-shaped eye-splice stake on both sides reaches some strength, stirring machine according to above-mentioned brill and manufacture the working method in T-shaped hole and manufacture a T-shaped hole respectively in the spacing again between every two cement-soil T-shaped eye-splice stakes, concreting in this T-shaped hole, form concrete T-shaped eye-splice stake, the recessed sphenocephaly of the concrete T-shaped eye-splice stake between every two cement-soil T-shaped eye-splice stakes is made to be fit to the convex sphenocephaly of cement-soil T-shaped eye-splice stake, the convex sphenocephaly of the concrete T-shaped eye-splice stake between every two cement-soil T-shaped eye-splice stakes is fit to the recessed sphenocephaly of cement-soil T-shaped eye-splice stake, formation cement-soil T-shaped like this eye-splice stake and concrete T-shaped eye-splice stake are spaced the piling wall of mutual eye-splice, for the gear soil of building foundation, antiseep.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511012124.2A CN105568968A (en) | 2015-12-31 | 2015-12-31 | Wedge-shaped inserting-buckling T-shaped pile drilling and stirring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511012124.2A CN105568968A (en) | 2015-12-31 | 2015-12-31 | Wedge-shaped inserting-buckling T-shaped pile drilling and stirring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105568968A true CN105568968A (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511012124.2A Withdrawn CN105568968A (en) | 2015-12-31 | 2015-12-31 | Wedge-shaped inserting-buckling T-shaped pile drilling and stirring machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN105568968A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568966A (en) * | 2015-12-31 | 2016-05-11 | 卢兴耐 | Wedge-shaped inserting-buckling T-shaped pile drilling and stirring machine |
| CN105839632A (en) * | 2016-06-07 | 2016-08-10 | 李兰 | Double-rectangular-locking mixing pile machine |
| CN105839633A (en) * | 2016-06-07 | 2016-08-10 | 李兰 | Double-arc locking and buckling stirring pile machine |
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 |
| CN204225085U (en) * | 2014-09-02 | 2015-03-25 | 谈维汉 | A kind of T-shaped stake |
| CN104846815A (en) * | 2015-06-05 | 2015-08-19 | 赵子健 | Implementing method for T-shaped round-head pile manufacturing device |
| CN105019436A (en) * | 2015-06-05 | 2015-11-04 | 刘玉燕 | Molding device for wedge-shaped opening locking piles |
| CN105484235A (en) * | 2015-12-31 | 2016-04-13 | 刘玉燕 | Wedge-shaped insertion buckle T-shaped pile drilling and stirring machine |
| CN105568966A (en) * | 2015-12-31 | 2016-05-11 | 卢兴耐 | Wedge-shaped inserting-buckling T-shaped pile drilling and stirring machine |
-
2015
- 2015-12-31 CN CN201511012124.2A patent/CN105568968A/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 |
| CN204225085U (en) * | 2014-09-02 | 2015-03-25 | 谈维汉 | A kind of T-shaped stake |
| CN104846815A (en) * | 2015-06-05 | 2015-08-19 | 赵子健 | Implementing method for T-shaped round-head pile manufacturing device |
| CN105019436A (en) * | 2015-06-05 | 2015-11-04 | 刘玉燕 | Molding device for wedge-shaped opening locking piles |
| CN105484235A (en) * | 2015-12-31 | 2016-04-13 | 刘玉燕 | Wedge-shaped insertion buckle T-shaped pile drilling and stirring machine |
| CN105568966A (en) * | 2015-12-31 | 2016-05-11 | 卢兴耐 | Wedge-shaped inserting-buckling T-shaped pile drilling and stirring machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568966A (en) * | 2015-12-31 | 2016-05-11 | 卢兴耐 | Wedge-shaped inserting-buckling T-shaped pile drilling and stirring machine |
| CN105839632A (en) * | 2016-06-07 | 2016-08-10 | 李兰 | Double-rectangular-locking mixing pile machine |
| CN105839633A (en) * | 2016-06-07 | 2016-08-10 | 李兰 | Double-arc locking and buckling stirring pile machine |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20160511 |