CN204059338U - Novel strong power bidirectional stirring pile machine - Google Patents
Novel strong power bidirectional stirring pile machine Download PDFInfo
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- CN204059338U CN204059338U CN201420417480.7U CN201420417480U CN204059338U CN 204059338 U CN204059338 U CN 204059338U CN 201420417480 U CN201420417480 U CN 201420417480U CN 204059338 U CN204059338 U CN 204059338U
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Abstract
The utility model provides a kind of novel strong power bidirectional stirring pile machine.The novel strong power bidirectional stirring pile machine of described one comprises two-way stirring drilling tool, described two-way stirring drilling tool comprises motor or hydraulic motor, hanger, reducer, in the hollow of coaxial package, outer drilling rod, it is characterized in that: described two-way stirring drilling tool also comprises and gear-box, the interior drilling rod connecting axle of hollow form and the outer drilling rod connecting axle of hollow form, the power input gear of described gear-box is connected with the power output shaft of reducer, described outer drilling rod connecting axle is arranged on the bottom of gear-box, and be connected with outer drilling rod, described interior drilling rod connecting axle inserts in gear-box from the top of gear-box, and be connected with interior drilling rod with outer drilling rod connecting axle through the power output gear of gear-box, slip casting water tap is provided with on the top of interior drilling rod connecting axle.The utility model structure is simple, powerful, and shock-resistant ability is strong, and sealing performance is stablized, and directly changes wear-resistant sleeve and seal during maintenance, convenient succinct.
Description
Technical field
The utility model belongs to building foundation engineering and equipment, specifically a kind of novel strong power bidirectional stirring pile machine being applicable to the process of soft soil foundation.
Background technology
Soft Ground in building foundation engineering is the key link ensureing workmanship, and occupies larger proportion in engineering total price.A large amount of engineering practice shows, the method for mixing cement and soil into pile have construction simple, fast, vibrate the advantages such as little, effectively can improve the stability of soft foundation, reduce and control settlement amount.Cement mixing method has now developed into a kind of conventional Treatment Methods of Soft Ground, is mainly applicable to reinforce saturated soft clay foundation.It specifically utilizes the materials such as cement (or lime) as curing compound, by special Mixing Machine, in ground depths, on the spot by weak soil and curing compound action of forced stirring, by producing a series of physical and chemical reaction between curing compound and weak soil, weak soil is hardened into have the cement mixing method of globality, water stability and some strength, this cement mixing method forms composite foundation together with soil around pile, thus raising bearing capacity of foundation soil, reduce foundation settlement.
Along with the development application of powder spray piling (dry spray or wet shot), two-way cement injection pile technology is arisen at the historic moment, and the stirring vane rotated by coaxial both forward and reverse directions is stirred effectively, thus significantly improves the construction quality of powder spray piling, China application and the disclosed patent No. be the patent of invention of 200410065861.4, it discloses a kind of bidirectional stirring pile machine with inside and outside drilling rod, the weak point that this mixing pile machine exists is that its dynamical system is all arranged on the top of drilling rod, cause that whole set equipment center of gravity is high creeps into guidance quality difference, construction swings large, stake footpath is uneven, not only affects the quality of stake, also causes the unnecessary waste of cement, in addition, the patent No. is install interior drilling rod additional in a kind of square kelly of the unidirectional mixing pile machine commonly using disclosed in the Chinese patent of 200820032114.4, in interior drilling rod upper end, upper driving motor is set, and the rotation direction of drilling rod is contrary with the rotation direction of the square kelly that stake machine rotating disk drives in keeping, the weak point of this technology is that geological condition is complicated, creeping into impact force directly acts on driving motor, upload motor fragile, simultaneously due to the restriction by stake machine stand size, the installation dimension uploading motor is restricted, be unfavorable for improving the power of uploading motor and stirring construction ability is crept in enhancing, upload motor simultaneously, the entire length of the first-class device of the fire hose is oversize, have a strong impact on the effective depth of construction, the installation of drilling tool needs crane to assist, and obtain work high above the ground, install inconvenience very, and there is potential safety hazard.In addition, also there is following shortcoming in existing bidirectional stirring pile machine: in (1), the disturbance of drilling rod makes drill bit poor sealing performance; (2) sealing of existing water tap all adopts packing seal, make the sealing performance of cement grout unstable, and the replacing of seal neither be very convenient: the sealing effectiveness of (3) drill bit is not fine, easily there is the construction difficult problems such as drill bit water inlet mud.
Summary of the invention
The utility model according to the deficiencies in the prior art provide a kind of powerful, resistance to impact good, convenient, that work efficiency is high novel strong power bidirectional stirring pile machine is installed.
The technical scheme that the utility model provides: the novel strong power bidirectional stirring pile machine of described one comprises underframe, stand, strut, chain, rotary power system, hoist dynamical system, rotating disk and two-way stirring drilling tool, described two-way stirring drilling tool comprises motor or hydraulic motor, hanger, reducer, in the hollow of coaxial package, outer drilling rod and in being separately positioned on, in outer drilling rod lower end, outer drill bit, rotating disk is set on outer drilling rod, and rotary power system drives outer drilling rod to rotate by rotating disk, and in motor or hydraulic motor are driven by reducer, drilling rod rotates backward, and it is characterized in that: described two-way stirring drilling tool also comprises and gear-box, the interior drilling rod connecting axle of hollow form and the outer drilling rod connecting axle of hollow form, the power input gear of described gear-box is connected with the power output shaft of reducer, described outer drilling rod connecting axle is arranged on the bottom of gear-box, and be connected with outer drilling rod, described interior drilling rod connecting axle inserts in gear-box from the top of gear-box, and be connected with interior drilling rod with outer drilling rod connecting axle through the power output gear of gear-box, be provided with slip casting water tap on the top of interior drilling rod connecting axle.
The further technical scheme of the utility model: described outer drilling rod is connected by built-in outer tool joint by more piece hollow square drilling rod, described outer tool joint is square-outside and round-inside shape, its square face coordinates with the interior aspect of outer drilling rod and welds together, circular hole and interior drilling rod matched in clearance in it, and built-in sliding bearing between drill bit and interior drilling rod outside.
The further technical scheme of the utility model: described water tap is connected with interior drilling rod connecting axle by the core pipe of its inside, sealing shroud is set with outside core pipe, sealing shroud is fixed on gear-box, alternate layout sealing ring and spacer ring between sealing shroud and core pipe, oil storage tank is set in each spacer ring, and is provided with one for the regular lubricating cup injecting lubrication oil in oil storage tank in the position of the outer corresponding each oil storage tank of sealing shroud.
The utility model is technical scheme preferably: be provided with drill bit black box in described outer drill bit, and drilling rod is fixed with wear-resistant sleeve in corresponding with it.
The utility model is technical scheme preferably: the hanger on described two-way stirring drilling tool is fixed on the housing of gear-box, and the chain be connected with two closed loops by the hanging scroll on hanger is hinged, hanging scroll two ends are provided with guide runner, hanger is slidably connected by the slideway of guide runner and stand, and the dynamical system that hoists can make hanger move up and down along the slideway in stand by chain.
The utility model is technical scheme preferably: described power input gear and power output gear are arranged side by side in gear-box, and two gears are spur gear, and engage each other.
The utility model is technical scheme preferably: described outer drilling rod connecting axle is connected with gear-box by roller bearing, and outer drilling rod is connected with the outer shaft flange of outer drilling rod connecting axle lower end by the outer drilling rod adpting flange of upper end.
The utility model is technical scheme preferably: described interior drilling rod is connected with interior drilling rod connecting axle by interior drilling rod flange, and the core pipe of water tap communicates with the internal channel of interior drilling rod connecting axle and interior drilling rod.
The utility model is technical scheme preferably: described reducer is planetary reduction gear.
The utility model patented technology adopts the drilling tool installing inside and outside drilling rod on pile dusting machine additional, the driving rotating disk powered by conventional energy of pile dusting machine, thus the outer drilling rod of driving rotarily drives the outer bit stirring be attached thereto; Interior drilling rod is driven by the strong planetary reduction gear of overload capacity, a pair spur gear by the motor being arranged on drilling rod top, thus in driving, stirring is crept in drill bit opposite spin, realizes the object of pile dusting machine two-way stirring.
The beneficial effects of the utility model:
(1) the utility model adopts the plug-in a pair straight-tooth transmission of planetary reduction gear, the moment of torsion transmitted when keeping power set monnolithic case size little is larger, the installation dimension of motor reducer, not by the restriction of stand size, avoids impact force when creeping into directly act on the application life of reducer reducing reducer simultaneously;
(2) sealing of the core pipe of water tap of the present utility model adopts seal and the alternate arrangement of support ring that can store lubrication oil, regular injection lubricant grease, seal and core pipe is made to keep good lubrication, seal life significantly improves, more stable to the sealing performance of cement grout, change seal more convenient simultaneously;
(3) interior drilling rod of the present utility model there is the interior axle of gear-box to connect, there is outer tool joint centre as support ring, under have the sliding bearing arranged in outer drill bit to support, avoid the Relative Perturbation that inside and outside drilling rod is excessive, improve the application life of drill bit black box;
(4) at interior drilling rod, the position of outer drill bit black box is provided with the wear-resistant sleeve through specially treated, drill bit sealing performance is better, and significantly improve the application life of drill bit, the replacing of black box and wear-resistant sleeve is more convenient.
The utility model structure is simple, powerful, shock-resistant ability is strong, and can be implemented in geological condition and comparatively complete bidirectional cement soil agitating pile construction efficiently under complicated situation, sealing performance is stablized simultaneously, wear-resistant sleeve and seal is directly changed during maintenance, convenient succinct.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2, Fig. 3 are the structural representations of two-way stirring drilling tool in the utility model;
Fig. 4 is the utility model water tap seal structural representation;
Fig. 5 is AA cross sectional representation in Fig. 3.
In figure: 1-motor or hydraulic motor, 2-hanger, 3-reducer, 4-water tap, 5-gear-box, 5-1-power input gear, 5-2-power output gear, 6-interior drilling rod connecting axle, 7-outer drilling rod connecting axle, 8-outer shaft flange, 9-sliding bearing, 10-outer drilling rod adpting flange, 11-outer drilling rod, 12-outer tool joint, 13-rotating disk, 14-outer drill bit, 15-black box, 15-1-wear-resistant sleeve, 16-interior drill bit attaching nut, 17-interior drill bit, 18-interior drilling rod, 19-interior drilling rod adpting flange, 20-drill bit sliding bearing, 21-core pipe, 22-sealing ring, 23-spacer ring, 24-oil storage tank, 25-sealing shroud, 26-lubricating cup, 27-gland, 28-guide runner, 29-slurry channel, 30-two-way stirring drilling tool, 31-hanging scroll, 32-underframe, 33-rotary power system, 34-strut, 35-hoist dynamical system, 36-stand, 37-chain.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further illustrated.As Fig. 1, shown in Fig. 2, the novel strong power bidirectional stirring pile machine of described one comprises underframe 32, stand 36, strut 34, chain 37, rotary power system 33, hoist dynamical system 35, rotating disk 13 and two-way stirring drilling tool 30, stand 36, rotary power system 33, the dynamical system that hoists 35 is all arranged on underframe 32, strut 34 connects underframe 32 and stand 36, play a supporting role, the chain 37 that two-way stirring drilling tool 30 is connected with two closed loops by the hanging scroll 31 on hanger 2 is hinged, hanging scroll two ends are provided with guide runner 28, hanger 2 is slidably connected by the slideway of guide runner 28 with stand 36, the dynamical system that hoists 35 can make hanger 2 move up and down along the slideway in stand 36 by chain 37, thus strong power two-way stirring drilling tool is provided creep into plus-pressure or lifting force.
As shown in Figure 3, described two-way stirring drilling tool 30 comprises motor or hydraulic motor 1, hanger 2, planetary reduction gear 3, gear-box 5, the interior drilling rod connecting axle 6 of hollow form, the outer drilling rod connecting axle 7 of hollow form, in the hollow of coaxial package, outer drilling rod 18, 11 and in being separately positioned on, in outer drilling rod lower end, outer drill bit 17, 14, described rotating disk 13 is set on outer drilling rod 11, rotary power system 33 drives outer drilling rod 11 to rotate forward by rotating disk 13, interior, in the lower end of outer drilling rod connects respectively, outer drill bit 17, 14, described hanger 2 is fixed on the housing of gear-box 5, be arranged side by side in gear-box 5 and engaged each other power input gear 5-1 and power output gear 5-2, two gears are spur gear, described outer drilling rod connecting axle 7 is arranged on the position of the corresponding power output gear 5-2 in bottom of gear-box 5, and be connected with gear-box 5 by roller bearing, outer drilling rod 11 is connected with the outer shaft flange 8 of outer drilling rod connecting axle 7 lower end by the outer drilling rod adpting flange 10 of upper end, described interior drilling rod connecting axle 6 inserts in gear-box 5 from the top of gear-box 5, and be connected with interior drilling rod 18 by interior drilling rod adpting flange 19 with outer drilling rod connecting axle 7 through the power output gear 5-2 of gear-box, drive interior drilling rod 18 counter-rotation by motor or hydraulic motor 1, reducer 3 and gear-box 5, thus achieve the two-way stirring of drill bit.
Slip casting water tap 4 is provided with on the top of interior drilling rod connecting axle 6, the core pipe 22 of water tap 4 communicates with the internal channel of interior drilling rod connecting axle 6 and interior drilling rod 18, cement grout or cement powder to be delivered in the soil that inside and outside drill bit 17,14 stirs by the heart portion passage of interior drilling rod 18 stir by the grouting port of water tap 4.Be provided with drill bit black box 15 in described outer drill bit 14, and drilling rod 18 be fixed with wear-resistant sleeve in corresponding with it, improve the shock-resistant ability of drill bit and sealing.
As shown in Figure 5, described outer drilling rod is connected by built-in outer tool joint 12 by more piece hollow square drilling rod, described outer tool joint 12 is square-outside and round-inside shape, its square face coordinates with the interior aspect of outer drilling rod and welds together, circular hole and interior drilling rod 18 matched in clearance in it, and built-in sliding bearing 20 between drill bit 14 and interior drilling rod 11 outside.The outer tool joint 12 arranged, both as the jointing of outer drilling rod, again as the support ring of interior drilling rod, can avoid interior drilling rod to have excessive disturbance.
As shown in Figure 4, described water tap 4 is connected with interior drilling rod connecting axle 6 by the core pipe 21 of its inside, sealing shroud 25 is set with outside core pipe 21, sealing shroud 25 is fixed on gear-box 5, alternate layout sealing ring 22 and spacer ring 23 between sealing shroud 25 and core pipe 21, oil storage tank 24 is set in each spacer ring 23, and is provided with one for the regular lubricating cup 26 injecting lubrication oil in oil storage tank in the position of the outer corresponding each oil storage tank of sealing shroud 25.Stock inlet adopts seal to combine with the support ring that can store lubrication oil, regularly injects lubricant grease, makes the sealing performance of cement grout more stable, changes seal more convenient.
Before the utility model uses, first on level land, weld interior drilling rod 18, be inserted in outer drilling rod 11, with interior drill steel support ring (i.e. outer tool joint 12) as weld well outer drilling rod, and weld the joint connecting drill bit, make the middle part of outer tool joint 12 drilling rod 11 outside during in-site installation welding as far as possible, sliding bearing 20 outside bottom in drill bit 14, black box 15, after wear-resistant sleeve installation, from outer drilling rod flange 10 toward inside and outside drilling rod 18, sludge (machine oil and French chalk etc. are mixed to form) is injected between 11, keep sludge because of the gravity pressure certain to drill bit seals place, balance is reached with the back-pressure of mud in soil to drill bit sealing place.After bidirectional stirring pile machine is installed, in place to stake, adjustment stake machine underframe 32, keeps stake machine stand 36 vertical, starts rotary power system 33, drive the outer drilling rod 11 of strong power two-way stirring drilling tool 30 and outer drill bit 14 to rotate forward by rotating disk 13, then starter motor or hydraulic motor 1, by motor or hydraulic motor 1, planetary reduction gear 3, power is input to the power input gear 5-1 of reduction box, and then by gear drive by power transmission to power output gear 5-2, transmit power to interior drilling rod connecting axle 6 by power output gear 5-2, thus in driving, drilling rod 18 and interior drill bit 1 rotate backward, meanwhile start cement paste pumping system or cement powder induction system, cement grout or dry powder is carried in strong power two-way stirring drilling tool 30, when there being the compressed air ejection of slurries or delivery of dry powder from interior drill bit 17 nozzle, start the dynamical system 35 that hoists, by chain 37, hanging scroll 31, hanger 2 is supplied to strong power two-way stirring drilling tool 30 plus-pressure, realize strong power two-way stirring drilling tool 30 by the guide runner 28 on hanging scroll 31 in the slip of stand sliding way and vertically creep into stirring, until projected depth stops hoisting dynamical system 35, continue the inside and outside drilling rod 18 keeping strong power two-way stirring drilling tool 30, Stirring half a minute of 11, then startup of reversing hoists dynamical system 35, by chain 37, hanging scroll 31, hanger 2 is supplied to strong power two-way stirring drilling tool 30 lifting force, until inside and outside drill bit 17, 14 arrive earth's surface or stop whitewashing after specifying absolute altitude or dust, repeat to creep into the dark rear lifting of stirring one meter to stir until inside and outside drill bit 17, 14 arrive earth's surface stops, mobile stake machine underframe, carry out the construction of next pile.In lubricating cup 26, lubricant grease is injected after per tour work.
The above; be only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; anyly belong to those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement; all should be encompassed within protection domain of the present utility model, the utility model can also be applied to diameter-variable pile machine, specifically only needs stirring vane to be replaced with the construction that reducing blade just can realize diameter-variable pile.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (9)
1. a novel strong power bidirectional stirring pile machine, comprise underframe (32), stand (36), strut (34), chain (37), rotary power system (33), the dynamical system that hoists (35), rotating disk (13) and two-way stirring drilling tool (30), described two-way stirring drilling tool (30) comprises motor or hydraulic motor (1), hanger (2), reducer (3), in the hollow of coaxial package, outer drilling rod (18, 11) and in being separately positioned on, in outer drilling rod lower end, outer drill bit (17, 14), rotating disk (13) is set on outer drilling rod (11), rotary power system (33) drives outer drilling rod (11) to rotate by rotating disk (13), in motor or hydraulic motor (1) are driven by reducer (3), drilling rod (18) rotates, it is characterized in that: described two-way stirring drilling tool (30) also comprises and gear-box (5), the interior drilling rod connecting axle (6) of hollow form and the outer drilling rod connecting axle (7) of hollow form, the power input gear (5-1) of described gear-box (5) is connected with the power output shaft of reducer (3), described outer drilling rod connecting axle (7) is arranged on the bottom of gear-box (5), and be connected with outer drilling rod (11), described interior drilling rod connecting axle (6) is inserted in gear-box (5) from the top of gear-box (5), and be connected with interior drilling rod (18) with outer drilling rod connecting axle (7) through the power output gear (5-2) of gear-box, slip casting water tap (4) is provided with on the top of interior drilling rod connecting axle (6).
2. the novel strong power bidirectional stirring pile machine of one according to claim 1, it is characterized in that: described outer drilling rod is connected by built-in outer tool joint (12) by more piece hollow square drilling rod, described outer tool joint (12) is square-outside and round-inside shape, its square face coordinates with the interior aspect of outer drilling rod and welds together, circular hole and interior drilling rod (18) matched in clearance in it, and built-in sliding bearing (20) between drill bit (14) and interior drilling rod (11) outside.
3. the novel strong power bidirectional stirring pile machine of one according to claim 1, it is characterized in that: described water tap (4) is connected with interior drilling rod connecting axle (6) by the core pipe (21) of its inside, sealing shroud (25) is set with outside core pipe (21), sealing shroud (25) is fixed on gear-box (5), alternate layout sealing ring (22) and spacer ring (23) between sealing shroud (25) and core pipe (21), oil storage tank (24) is set in each spacer ring (23), and be provided with one for the regular lubricating cup (26) injecting lubrication oil in oil storage tank in the position of sealing shroud (25) corresponding each oil storage tank outward.
4. the novel strong power bidirectional stirring pile machine of one according to claim 1 or 2 or 3, it is characterized in that: in described outer drill bit (14), be provided with drill bit black box (15), and drilling rod (18) is fixed with wear-resistant sleeve (15-1) in corresponding with it.
5. the novel strong power bidirectional stirring pile machine of one according to claim 1 or 2 or 3, it is characterized in that: the hanger (2) on described two-way stirring drilling tool (30) is fixed on the housing of gear-box (5), and the chain (37) be connected with two closed loops by the hanging scroll (38) on hanger (2) is hinged, hanging scroll two ends are provided with guide runner (28), hanger (2) is slidably connected by the slideway of guide runner (28) with stand (36), the dynamical system that hoists (35) can make hanger (2) move up and down along the slideway in stand (36) by chain (37).
6. the novel strong power bidirectional stirring pile machine of one according to claim 1 or 2 or 3, it is characterized in that: described power input gear (5-1) and power output gear (5-2) are arranged side by side in gear-box, two gears are spur gear, and engage each other.
7. the novel strong power bidirectional stirring pile machine of one according to claim 1 or 2 or 3, it is characterized in that: described outer drilling rod connecting axle (7) is connected with gear-box (5) by roller bearing, outer drilling rod (11) is connected with the outer shaft flange (8) of outer drilling rod connecting axle (7) lower end by the outer drilling rod adpting flange (10) of upper end.
8. the novel strong power bidirectional stirring pile machine of one according to claim 1 or 2 or 3, it is characterized in that: described interior drilling rod (18) is connected with interior drilling rod connecting axle (6) by interior drilling rod flange (19), and the core pipe (22) of water tap (4) communicates with the internal channel of interior drilling rod connecting axle (6) and interior drilling rod (18).
9. the novel strong power bidirectional stirring pile machine of one according to claim 1 and 2, is characterized in that: described reducer (3) is planetary reduction gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420417480.7U CN204059338U (en) | 2014-07-25 | 2014-07-25 | Novel strong power bidirectional stirring pile machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420417480.7U CN204059338U (en) | 2014-07-25 | 2014-07-25 | Novel strong power bidirectional stirring pile machine |
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| Publication Number | Publication Date |
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| CN204059338U true CN204059338U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420417480.7U Expired - Fee Related CN204059338U (en) | 2014-07-25 | 2014-07-25 | Novel strong power bidirectional stirring pile machine |
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| CN (1) | CN204059338U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631449A (en) * | 2015-02-28 | 2015-05-20 | 朱艳菊 | Parallelogram-shaped mixing-pile drilling machine |
| CN105019441A (en) * | 2015-07-15 | 2015-11-04 | 周兆弟 | Axial lifting driving structure for drill rods of pile driver for cement mixing piles |
| CN105221444A (en) * | 2015-10-31 | 2016-01-06 | 重庆渝牛食品有限公司 | For the pump of syrup delivery |
| CN111734312A (en) * | 2020-06-03 | 2020-10-02 | 陈腊根 | Double-wheel double-milling multi-stirring power head |
-
2014
- 2014-07-25 CN CN201420417480.7U patent/CN204059338U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631449A (en) * | 2015-02-28 | 2015-05-20 | 朱艳菊 | Parallelogram-shaped mixing-pile drilling machine |
| CN104631449B (en) * | 2015-02-28 | 2016-05-25 | 卢兴耐 | Parallelogram mixing pile rig |
| CN105019441A (en) * | 2015-07-15 | 2015-11-04 | 周兆弟 | Axial lifting driving structure for drill rods of pile driver for cement mixing piles |
| CN105221444A (en) * | 2015-10-31 | 2016-01-06 | 重庆渝牛食品有限公司 | For the pump of syrup delivery |
| CN111734312A (en) * | 2020-06-03 | 2020-10-02 | 陈腊根 | Double-wheel double-milling multi-stirring power head |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20210725 |
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| CF01 | Termination of patent right due to non-payment of annual fee |