CN203557541U - Full-hydraulic automatic loading movable lifting type forced stirring device - Google Patents
Full-hydraulic automatic loading movable lifting type forced stirring device Download PDFInfo
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- CN203557541U CN203557541U CN201320743859.2U CN201320743859U CN203557541U CN 203557541 U CN203557541 U CN 203557541U CN 201320743859 U CN201320743859 U CN 201320743859U CN 203557541 U CN203557541 U CN 203557541U
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- 238000003756 stirring Methods 0.000 title claims abstract description 80
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 230000003028 elevating effect Effects 0.000 claims description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 230000008531 maintenance mechanism Effects 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 8
- 239000002828 fuel tank Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 11
- 238000005086 pumping Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 38
- 239000010720 hydraulic oil Substances 0.000 description 5
- 241000272165 Charadriidae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a full-hydraulic automatic loading movable lifting type forced stirring device which is composed of a rack as well as a loading mechanism, a stirring mechanism, a lifting mechanism, a moving mechanism, a positioning mechanism and a power mechanism which are arranged on the rack, wherein the loading mechanism is used for conveying a dry material into the stirring mechanism; the stirring mechanism is used for mixing and stirring the dry material into concrete; the lifting mechanism is fixedly connected with the stirring mechanism and used for lifting and lowering the stirring mechanism; the moving mechanism is used for transferring the rack; the positioning mechanism is used for stably placing the rack in a construction position; the power mechanism is used for providing power to the loading mechanism, the stirring mechanism, the lifting mechanism and the positioning mechanism. The device disclosed by the utility model integrates movable and automatic loading, continuous forced stirring, automatic lifting, automatic adjustment of discharge height and automatic discharge, is driven by a motor, realizes full-hydraulic transmission and high automation degree, has the advantages of reasonable structure, small volume, small floor area and convenience in maintenance, greatly reduces the labor intensity, improves the efficiency, and can be applied to the loading height of various types of pumping equipment.
Description
Technical field
The utility model relates to a kind of all-hydraulic automatic charging movable up-down action of forced stirring device.
Background technology
At present, lid building in rural area more and more adopts concrete pump, Vehicle loaded pump and arm-pump carry out delivering concrete, and concrete stirring material loading, the one, adopt rotary mixer and forced stirrer to carry out ready-mixed concrete, then use artificial, crane or increase equipment and the concrete being stirred is placed in the hopper of said pump kind equipment, the 2nd, adopt agitator truck the concrete being stirred to be put in the hopper of pumping equipment, its major defect: first kind of way, the driving of rotary mixer and forced stirrer adopts reductor, chain drive, concrete siccative material loading adopts hoist engine, pulley, steel wire rope, balladeur train, hopper carrys out material loading, bulky, complex structure, and maintenance capacity is large, fault rate is high, and efficiency is low, operates very inconveniently, and the concrete material loading height being stirred can not regulate as required automatically, move inconvenience, can not be suitable for the needs of pumping equipment far away, the second way is due to rural area street, road is narrow, place is little, space is little, agitator truck is turned, reversing is inconvenient, and concrete use amount is few, and expense is large, and deficiency in economic performance is also inapplicable.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of all-hydraulic automatic charging movable up-down action of forced stirring device.
For achieving the above object, the all-hydraulic automatic charging movable up-down of one described in the utility model action of forced stirring device, by frame and the feed mechanism, rabbling mechanism, elevating mechanism, travel mechanism, maintenance mechanism and the actuating unit that are placed in this frame, formed, wherein
Described feed mechanism comprises elevating hopper, and described elevating hopper is connected with the charging aperture place of described rabbling mechanism by elevating hopper rotating shaft in the position of elevating hopper discharging opening; Described feed mechanism also comprises an elevating hopper oil cylinder, and one end of described elevating hopper oil cylinder is fixed on described rabbling mechanism, and the other end is fixed on the bottom of described elevating hopper; Described elevating hopper oil cylinder is connected with described actuating unit;
Described rabbling mechanism at least comprises mixing drum, and described mixing drum is fixed on described elevating mechanism;
Described elevating mechanism comprises stirring crane, is fixed on vertical rod and hoist cylinder in frame, described stirring crane is fixed with described mixing drum, both sides at described stirring crane are respectively provided with hoist cylinder, and each hoist cylinder is all connected with described actuating unit;
Shown in travel mechanism be placed in the bottom of described frame; Described maintenance mechanism is placed in the avris of described frame, and is connected with described actuating unit.
Preferably, in the bottom of described mixing drum, be provided with movably Dump gate, described Dump gate is connected with Dump gate oil cylinder, and described Dump gate oil cylinder is connected with described actuating unit; In the inside of described mixing drum, be provided with two single horizontal shaft type action of forced stirring axles, each action of forced stirring axle is provided with multiple action of forced stirring arms, on each described action of forced stirring arm, is fixed with action of forced stirring blade; Each action of forced stirring axle is all connected with action of forced stirring motor, and described action of forced stirring motor is connected with described actuating unit.
Preferably, at the two ends of described stirring crane, be provided with slider frame, on slider frame, be provided with slide block, in described vertical rod, be provided with the slideway sliding up and down for slide block.
Preferably, described maintenance mechanism comprises the multiple support oil cylinders that are fixed in frame, and the bottom of the expansion link of each support oil cylinder is provided with steady plate; Described support oil cylinder is connected with described actuating unit.
Preferably, in the bottom of described frame, be provided with multiple rubber tire framves, on each described rubber tire frame, be provided with glue shaft, on each glue shaft, be provided with rubber tire; Described rubber tire frame, glue shaft and rubber tire form travel mechanism jointly.
Preferably, on the aperture position of described mixing drum, be provided with sparge pipe, described sparge pipe is connected with water pump, and described water pump is connected with pump motor, and described pump motor is connected with described actuating unit.
Preferably, described actuating unit comprises motor, fuel tank, tie-plate, plunger displacement pump, the first gear pump, the second gear pump, Three gear pump, and be placed in Dump gate hand-operated direction valve, action of forced stirring hand-operated direction valve, elevating hopper hand-operated direction valve, down manual reversal valve, water pump hand-operated direction valve, the supporting leg multichannel hand-operated direction valve on vavle shelf, wherein
Described motor connects plunger displacement pump, the first gear pump, the second gear pump, Three gear pump successively by tie-plate;
Described motor is connected with action of forced stirring motor, pump motor respectively;
Described fuel tank is connected by pipeline with plunger displacement pump, the first gear pump, the second gear pump, Three gear pump respectively;
Described plunger displacement pump is connected with described action of forced stirring motor with pipeline by action of forced stirring hand-operated direction valve; Described plunger displacement pump is connected with Dump gate oil cylinder with pipeline by Dump gate hand-operated direction valve; Described the first gear pump is connected with hoist cylinder with pipeline by down manual reversal valve; Described the first gear pump is connected with elevating hopper oil cylinder with pipeline by elevating hopper hand-operated direction valve; Described the second gear pump is connected with support oil cylinder with pipeline by supporting leg multichannel hand-operated direction valve; Described Three gear pump is connected with pump motor with pipeline by water pump hand-operated direction valve.
The beneficial effects of the utility model are:
The utlity model has movement, automatic charging, action of forced stirring, automatic lifting regulate discharge height, self-emptying to be integrated automatically continuously, by a motor, driven, all-hydraulic transmission, automaticity is high, have rational in infrastructure, volume is little, floor space is little, easy to maintenance, greatly reduce labour intensity, improved efficiency, can be suitable for the material loading height of various pumping equipments.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is that the A of Fig. 1 is to view (removing elevating hopper);
Fig. 4 is for rising discharging duty;
Fig. 5 is the cutaway view along B-B line in Fig. 2;
Fig. 6 is the cutaway view along C-C line in Fig. 3;
Fig. 7 is hydraulic system principle figure of the present utility model.
The specific embodiment
Below in conjunction with Figure of description, the utility model is further described.
A kind of all-hydraulic automatic charging movable up-down action of forced stirring device described in the utility model embodiment, consists of frame and the feed mechanism, rabbling mechanism, elevating mechanism, travel mechanism, maintenance mechanism and the actuating unit that are placed in this frame, wherein,
Feed mechanism, for being transported to siccative in rabbling mechanism;
Rabbling mechanism, for being mixed into concrete by siccative;
Elevating mechanism, is fixedly connected with rabbling mechanism, for rabbling mechanism being raise and reducing;
Travel mechanism, for the transfer of frame;
Maintenance mechanism, for firmly parking frame on construction location;
Actuating unit, for providing power to described feed mechanism, rabbling mechanism, elevating mechanism, maintenance mechanism.
The utlity model has movement, automatic charging, action of forced stirring, automatic lifting regulate discharge height, self-emptying to be integrated automatically continuously, by a motor, driven, all-hydraulic transmission, automaticity is high, have rational in infrastructure, volume is little, floor space is little, easy to maintenance, greatly reduce labour intensity, improved efficiency, can be suitable for the material loading height of various pumping equipments.
As of the present utility model, further explain:
As shown in Fig. 1-Fig. 6, at the front end of frame 5, be provided with traction bridge 6, the traction for power car to frame.In frame, be provided with operations chair 7, in operations chair 7 fronts, be provided with vavle shelf 8, operator can be sitting on operations chair 7 in face of Dump gate hand-operated direction valve 9, action of forced stirring hand-operated direction valve 38, elevating hopper hand-operated direction valve 40, down manual reversal valve 39, water pump hand-operated direction valve 41, supporting leg multichannel hand-operated direction valve 36 on vavle shelf 8 operate, easy to use.In the two bottom sides of frame 5, be respectively provided with two rubber tire framves 3, each rubber tire frame 3 is provided with glue shaft 1, and glue shaft 1 is provided with rubber tire 2.In frame 5, be also provided with fuel tank 37 and motor 5, described motor 5 is connected with Three gear pump 16 with tie-plate 12, plunger displacement pump 13, the first gear pump 14, the second gear pump 15 successively.
In frame 5, both sides are respectively provided with a hoist cylinder 34, and each hoist cylinder 34 is connected with stirring crane 23 by hoist cylinder bearing pin 19.In the both sides of stirring crane 23, be provided with vertical rod, in vertical rod, be provided with slideway, on stirring crane 23, be provided with four slider frames 11 and mixing drum 33.On each slider frame 11, be provided with four slide blocks 10, to slide up and down on vertical rod slideway.In mixing drum 33, be provided with two action of forced stirring axle 45A and 45B, in one end of two action of forced stirring axle 45A and 45B, be provided with reduction box 18, on reduction box 18, be provided with action of forced stirring motor 17.
A side at mixing drum 33 is also provided with elevating hopper 24, elevating hopper 24 tops are connected with mixing drum 33 by elevating hopper rotating shaft 25, the bottom of elevating hopper 24 is connected with elevating hopper oil cylinder 27 by the second elevating hopper oil cylinder bearing pin 28, and the other end of elevating hopper oil cylinder 27 is connected with mixing drum 33 by the first elevating hopper oil cylinder bearing pin 26.
At mixing drum, 33 upper opening places are provided with sparge pipe 22, sparge pipe 22 is connected with water pump 21, water pump 21 is connected with pump motor 20, in the bottom of mixing drum 33, be provided with Dump gate 31, Dump gate 31 is connected with one end of Dump gate oil cylinder 32 by the first Dump gate oil cylinder bearing pin 29, and the other end of Dump gate oil cylinder 32 is connected with mixing drum 33 by the second Dump gate oil cylinder bearing pin 35.
As described in Figure 7, motor 4 successively with plunger displacement pump 13, the first gear pump 14, the second gear pump 16, Three gear pump is connected, plunger displacement pump 13, the first gear pump 14, the second gear pump 15 and Three gear pump 16 are connected with fuel tank 37 by oil absorption filter 53, plunger displacement pump 13 is by pipeline I56 and action of forced stirring hand-operated direction valve 38, Dump gate hand-operated direction valve 9 is connected, action of forced stirring hand-operated direction valve 38 is connected with action of forced stirring motor 17, Dump gate hand-operated direction valve 9 is connected with Dump gate oil cylinder 32, action of forced stirring hand-operated direction valve 38, the oil return of Dump gate hand-operated direction valve 9 and overflow valve I46 is all by cooler 54, return filter 55 oil return casees 37.The first gear pump 14 is by pipeline II 57 and down manual reversal valve 39, elevating hopper hand-operated direction valve 40 is connected, down manual reversal valve 39 is connected with two hoist cylinders 34, elevating hopper hand-operated direction valve 40 is connected with two elevating hopper oil cylinders 27, down manual reversal valve 39, the oil return of elevating hopper hand-operated direction valve 40 and overflow valve II 47 is all by cooler 54, return filter 55 oil return casees 37.The second gear pump 15 is connected with supporting leg multichannel hand-operated direction valve 36 by pipeline III 58, and supporting leg multichannel hand-operated direction valve 36 is connected with support oil cylinder 30, and the oil return of supporting leg multichannel hand-operated direction valve 36 is by cooler 54, return filter 55 oil return casees 37.Three gear pump 16 is connected with water pump hand-operated direction valve 41 by pipeline IV 59, and water pump hand-operated direction valve 41 is connected with pump motor 20, and water pump hand-operated direction valve 41 passes through cooler 54, return filter 55 oil return casees 37 with the oil return of overflow valve III 48.
The course of work of the present utility model is:
First by equipment by traction bridge 6, rubber tire 2 moves to needs position, starter motor 4, actuation plunger pump 13, the first gear pump 14, the second gear pump 15 and Three gear pump 16 fuel feeding, now operate supporting leg multichannel hand-operated direction valve 36, makes the hydraulic oil of the second gear pump 15 confessions drive four support oil cylinders 30 that complete machine is risen by pipeline III 58, make rubber tire 2 built on stilts, by four support oil cylinders, 30 frames 5.Then concrete drier is poured in elevating hopper 24, operation elevating hopper hand-operated direction valve 40, make the hydraulic oil of the first gear pump 14 confessions drive two elevating hopper oil cylinders 27 to rise by pipeline II 57, concrete drier is poured in mixing drum 33, simultaneously, operation action of forced stirring hand-operated direction valve 38, make the hydraulic oil of plunger displacement pump 13 confessions drive action of forced stirring motor 17 to rotate by pipeline I56, action of forced stirring motor 17 is by two action of forced stirring axle 45A of drive and the 45B reverse rotation of reduction box 18, by the action of forced stirring arm 43 and the action of forced stirring blade 44 that are fixed on action of forced stirring axle 45A and 45B, concrete is carried out to action of forced stirring, operate water pump hand-operated direction valve 41 simultaneously, make the hydraulic pressure of Three gear pump 16 confessions drive pump motor 20 by pipeline IV 59, pump motor 20 drives water pump 21 to rotate and in mixing drum 33, adds water by sparge pipe 22.Because action of forced stirring blade 44 is on action of forced stirring axle 45A and 45B, by certain angle, arrange, can stir fully concrete.Now operate down manual reversal valve 39, make the hydraulic oil of the first gear pump 14 confessions drive two hoist cylinders 34 to rise by pipeline II 57, by stirring crane 23, four slider frames 11, slide block 10 drives mixing drum 33, elevating hopper 24 rises, when mixing drum 33 is raised to the height needing, operation down manual reversal valve 39 stops two hoist cylinders 34, now operate Dump gate hand-operated direction valve 9, make the hydraulic oil of plunger displacement pump 13 confessions drive Dump gate oil cylinder 32 by pipeline I56, Dump gate oil cylinder 32 drives Dump gate 31 to open discharge port and the concrete material being stirred is put in the pumping equipment hopper needing, discharge after material, operation Dump gate hand-operated direction valve 9, drive Dump gate oil cylinder 32, close Dump gate 31, operate down manual reversal valve 39 simultaneously, drive two hoist cylinders 34 to drop to reset condition, operate again elevating hopper hand-operated direction valve 40, drive two elevating hopper oil cylinders 27 that elevating hopper 24 is put down, again material loading.Above-mentioned circulation goes on again and again, until all hand-operated direction valves are stopped to centre position.
Above; it is only preferred embodiment of the present utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim was defined.
Claims (7)
1. an all-hydraulic automatic charging movable up-down action of forced stirring device, is characterized in that, by frame and the feed mechanism, rabbling mechanism, elevating mechanism, travel mechanism, maintenance mechanism and the actuating unit that are placed in this frame, formed, wherein,
Described feed mechanism comprises elevating hopper, and described elevating hopper is connected with the charging aperture place of described rabbling mechanism by elevating hopper rotating shaft in the position of elevating hopper discharging opening; Described feed mechanism also comprises an elevating hopper oil cylinder, and one end of described elevating hopper oil cylinder is fixed on described rabbling mechanism, and the other end is fixed on the bottom of described elevating hopper; Described elevating hopper oil cylinder is connected with described actuating unit;
Described rabbling mechanism at least comprises mixing drum, and described mixing drum is fixed on described elevating mechanism;
Described elevating mechanism comprises stirring crane, is fixed on vertical rod and hoist cylinder in frame, described stirring crane is fixed with described mixing drum, both sides at described stirring crane are respectively provided with hoist cylinder, and each hoist cylinder is all connected with described actuating unit;
Shown in travel mechanism be placed in the bottom of described frame; Described maintenance mechanism is placed in the avris of described frame, and is connected with described actuating unit.
2. all-hydraulic automatic charging movable up-down action of forced stirring device according to claim 1, it is characterized in that, in the bottom of described mixing drum, be provided with movably Dump gate, described Dump gate is connected with Dump gate oil cylinder, and described Dump gate oil cylinder is connected with described actuating unit; In the inside of described mixing drum, be provided with two single horizontal shaft type action of forced stirring axles, each action of forced stirring axle is provided with multiple action of forced stirring arms, on each described action of forced stirring arm, is fixed with action of forced stirring blade; Each action of forced stirring axle is all connected with action of forced stirring motor, and described action of forced stirring motor is connected with described actuating unit.
3. all-hydraulic automatic charging movable up-down action of forced stirring device according to claim 1, it is characterized in that, two ends at described stirring crane are provided with slider frame, are provided with slide block on slider frame, are provided with the slideway sliding up and down for slide block in described vertical rod.
4. all-hydraulic automatic charging movable up-down action of forced stirring device according to claim 1, is characterized in that, described maintenance mechanism comprises the multiple support oil cylinders that are fixed in frame, and the bottom of the expansion link of each support oil cylinder is provided with steady plate; Described support oil cylinder is connected with described actuating unit.
5. all-hydraulic automatic charging movable up-down action of forced stirring device according to claim 1, is characterized in that, is provided with multiple rubber tire framves in the bottom of described frame, on each described rubber tire frame, is provided with glue shaft, on each glue shaft, is provided with rubber tire; Described rubber tire frame, glue shaft and rubber tire form travel mechanism jointly.
6. all-hydraulic automatic charging movable up-down action of forced stirring device according to claim 1, it is characterized in that, on the aperture position of described mixing drum, be provided with sparge pipe, described sparge pipe is connected with water pump, described water pump is connected with pump motor, and described pump motor is connected with described actuating unit.
7. according to the all-hydraulic automatic charging movable up-down action of forced stirring device described in claim 1,2,3,4,5 or 6, it is characterized in that, described actuating unit comprises motor, fuel tank, tie-plate, plunger displacement pump, the first gear pump, the second gear pump, Three gear pump, and be placed in Dump gate hand-operated direction valve, action of forced stirring hand-operated direction valve, elevating hopper hand-operated direction valve, down manual reversal valve, water pump hand-operated direction valve, the supporting leg multichannel hand-operated direction valve on vavle shelf, wherein
Described motor connects plunger displacement pump, the first gear pump, the second gear pump, Three gear pump successively by tie-plate;
Described motor is connected with action of forced stirring motor, pump motor respectively;
Described fuel tank is connected by pipeline with plunger displacement pump, the first gear pump, the second gear pump, Three gear pump respectively;
Described plunger displacement pump is connected with described action of forced stirring motor with pipeline by action of forced stirring hand-operated direction valve; Described plunger displacement pump is connected with Dump gate oil cylinder with pipeline by Dump gate hand-operated direction valve; Described the first gear pump is connected with hoist cylinder with pipeline by down manual reversal valve; Described the first gear pump is connected with elevating hopper oil cylinder with pipeline by elevating hopper hand-operated direction valve; Described the second gear pump is connected with support oil cylinder with pipeline by supporting leg multichannel hand-operated direction valve; Described Three gear pump is connected with pump motor with pipeline by water pump hand-operated direction valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743859.2U CN203557541U (en) | 2013-11-21 | 2013-11-21 | Full-hydraulic automatic loading movable lifting type forced stirring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743859.2U CN203557541U (en) | 2013-11-21 | 2013-11-21 | Full-hydraulic automatic loading movable lifting type forced stirring device |
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| CN203557541U true CN203557541U (en) | 2014-04-23 |
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| CN201320743859.2U Expired - Lifetime CN203557541U (en) | 2013-11-21 | 2013-11-21 | Full-hydraulic automatic loading movable lifting type forced stirring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978559A (en) * | 2014-06-09 | 2014-08-13 | 张明明 | Small traction type stabilized soil stirring machine |
| CN107253283A (en) * | 2017-08-14 | 2017-10-17 | 韩宝瑞 | Easy laborsaving moveable cement mixer of getting on or off the bus |
| CN111923231A (en) * | 2020-07-23 | 2020-11-13 | 马鞍山市金韩防水保温工程有限责任公司 | Uniform mixing device for building mortar processing and working method thereof |
-
2013
- 2013-11-21 CN CN201320743859.2U patent/CN203557541U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978559A (en) * | 2014-06-09 | 2014-08-13 | 张明明 | Small traction type stabilized soil stirring machine |
| CN107253283A (en) * | 2017-08-14 | 2017-10-17 | 韩宝瑞 | Easy laborsaving moveable cement mixer of getting on or off the bus |
| CN111923231A (en) * | 2020-07-23 | 2020-11-13 | 马鞍山市金韩防水保温工程有限责任公司 | Uniform mixing device for building mortar processing and working method thereof |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUNAN DINGFENG MACHINERY CO., LTD. Free format text: FORMER OWNER: HUNAN SANMIN HEAVY INDUSTRY CO., LTD. Effective date: 20150806 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150806 Address after: 411100 No. 003 Xiang Xiang Road, Xiangxiang Economic Development Zone, Hunan, Xiangtan Patentee after: HUNANN DING FENG MACHINERY CO.,LTD. Address before: 411100 Hunan city of Xiangtan province Xiangtan City Yuhu Guang Yun Lu Guangyuan garden 3 Building 2 unit 401 Patentee before: HUNAN SANMIN HEAVY INDUSTRY TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
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| CX01 | Expiry of patent term |