CN105619609A - Cement stirring and distributing device - Google Patents
Cement stirring and distributing device Download PDFInfo
- Publication number
- CN105619609A CN105619609A CN201610073737.5A CN201610073737A CN105619609A CN 105619609 A CN105619609 A CN 105619609A CN 201610073737 A CN201610073737 A CN 201610073737A CN 105619609 A CN105619609 A CN 105619609A
- Authority
- CN
- China
- Prior art keywords
- agitator
- drive link
- stirring
- flow arrangement
- part flow
- Prior art date
- 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.)
- Granted
Links
- 239000004568 cement Substances 0.000 title claims abstract description 37
- 238000003756 stirring Methods 0.000 title abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010516 chain-walking reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
- B28C7/162—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
- B28C7/162—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure
- B28C7/168—Discharging chutes for concrete mixers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Structural Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a cement stirring and distributing device which comprises a stirring barrel, a rotary disc mechanism, a stirring rod and an auxiliary discharging device. A feed inlet is formed in the side portion of the upper side of the stirring barrel, and a blocking plate is arranged on the upper portion of the feed inlet and fixedly arranged in the stirring barrel. A discharge outlet is formed in the lowermost end of the bottom of the stirring barrel and connected with a discharge pipe which is provided with a valve. Four supporting columns are evenly welded at the bottom of the stirring barrel. The rotary disc mechanism is arranged at the top of the stirring barrel and composed of a framework ring and a central plate, the central plate is downwards connected with the stirring rod, the stirring rod penetrates into the stirring barrel, and stirring blades are evenly arranged on the stirring rod. According to the cement stirring and distributing device, consumption of materials is reduced, cost is reduced, and the device has good popularization value and is long in service life, easy to maintain, reasonable in structure, high in production efficiency, small in occupied space, stable in operation and capable of mixing cement with high evenness.
Description
Technical field
The present invention relates to a kind of cement stirring device, specifically a kind of cement mixing part flow arrangement.
Background technology
Cement is a kind of powdery hydraulicity inorganic coagulation material, add water and after stirring, become slurry, can harden in atmosphere or better harden in water, and can the material such as sand, stone is cemented together securely, early stage Calx is much like with modern lime pozzolanic cement with pozzuolanic mixture, the concrete made with its cementing rubble, after hardening, not only intensity is higher, and the erosion of fresh water or brackish water can also be resisted, for a long time, it, as a kind of important Binder Materials, is widely used in the engineerings such as civil construction, water conservancy, national defence. Cement stirring device is divided into many kinds, there are forced action type cement stirring device, single horizontal axis cement stirring device, Double-horizontal-shaft cement stirring device etc., traditional cement stirring device is bigger due to the resistance of cement mixing, requirement torsion is big, the loss of motor is serious, building site workman is when accepting cement simultaneously, it is necessary to queues up at cement exit, has had a strong impact on the production capacity of work efficiency and enterprise.
Summary of the invention
It is an object of the invention to provide a kind of cement mixing part flow arrangement, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of cement mixing part flow arrangement, including agitator, rotate disc mechanism, puddler and auxiliary drawing mechanism, above described agitator, sidepiece is provided with charging aperture, charging aperture be arranged over striker plate, and striker plate is installed in inside agitator, and bottom agitator, least significant end is provided with discharging opening, discharging opening connects discharge nozzle, and discharge nozzle is provided with valve, bottom agitator, it is uniformly welded with support column, and support column is provided with four, described agitator top is provided with rotation disc mechanism, rotates disc mechanism and is made up of skeleton annulus and central plate, and skeleton annulus is divided into six parts, and skeleton annulus is connected to central plate by connecting rod, and skeleton annulus outboard array is provided with ring gear, it is provided with roller bearing between central plate and agitator top, rotating disc mechanism sidepiece and be provided with motor, motor is installed in agitator upper end, and motor-driven connects change speed gear box, the output gear case of change speed gear box engages with ring gear, and the tooth pitch of ring gear, tooth depth are consistent with change speed gear box output gear, central plate is connected to downwards puddler, and puddler penetrates inside agitator, and puddler is uniformly provided with paddle, discharge nozzle lower end is provided with part flow arrangement, and part flow arrangement includes circular kerve, and circular kerve surrounding array is provided with four blow tanks, and blow tank tilts upward setting, is equipped with bracing frame bottom circular kerve and blow tank, auxiliary drawing mechanism it is provided with in blow tank, auxiliary drawing mechanism includes two conveyings be arrangeding in parallel and the chain running in conveying, conveying is positioned at blow tank both sides and is obliquely installed, chain drives and is connected to some sprocket wheels, sprocket wheel has hole, location, auxiliary drawing mechanism also includes drive link and blade, drive link number is the half of sprocket wheel, drive link traverse conveying and drive link and conveying junction are provided with roller bearing, drive link two ends are sleeved in the hole, location of sprocket wheel to be fixed on by drive link on two chains, drive link axis and two hole centre line are on same level line, it is mounted on blade in the middle of each drive link.
Further, described agitator is stainless steel material and thickness is 9cm.
Further, described support column is circular thick walled steel tube.
Further, described blow tank top is provided with cover plate.
Compared with prior art, the invention enables the rotary torsion of puddler bigger, mixing effect is notable, reduce the loss of motor, split into from blow tank acceptance by originally cement can only be accepted from discharge nozzle simultaneously, effectively raise work efficiency, improve production capacity, no matter it is be very convenient in transport or use procedure, and decrease the use of material, decrease cost, there is good promotional value, long service life and easy care, rational in infrastructure, production efficiency is high, it is little to take up an area space, running steadily, mixing homogeneity high.
Accompanying drawing explanation
Fig. 1 is the structural representation of cement mixing part flow arrangement.
Fig. 2 is the top view rotating disc mechanism in cement mixing part flow arrangement.
Fig. 3 is the top view of part flow arrangement in cement mixing part flow arrangement.
Fig. 4 is the structural representation assisting drawing mechanism in cement mixing part flow arrangement.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.
Refer to Fig. 1-4, a kind of cement mixing part flow arrangement, including agitator 1, rotate disc mechanism 2, puddler 27 and auxiliary drawing mechanism 4, described agitator 1 is 9cm for stainless steel material and thickness, above agitator 1, sidepiece is provided with charging aperture 12, charging aperture 12 be arranged over striker plate 13, and striker plate 13 is installed in agitator 1 inside, bottom agitator 1, least significant end is provided with discharging opening 14, discharging opening 14 connects discharge nozzle 15, and discharge nozzle 15 is provided with valve 16, support column 17 it is uniformly welded with bottom agitator 1, and support column 17 is provided with four, support column 17 is circular thick walled steel tube, support column 17 plays fixing supporting role at work, described agitator 1 top is provided with rotation disc mechanism 2, rotate disc mechanism 2 to be made up of skeleton annulus 21 and central plate 22, skeleton annulus 21 is divided into six parts, skeleton annulus 21 is connected to central plate 22 by connecting rod 23, skeleton annulus 21 outboard array is provided with ring gear 24, and this structure rotating disc mechanism 2 has reached same transmission effect, reduces the weight rotating disc mechanism 2, thus alleviating overall weight, reduce mechanically operated loss, it is provided with roller bearing between central plate 22 and agitator 1 top, rotate disc mechanism 2 sidepiece and be provided with motor 25, motor 25 is installed in agitator 1 upper end, motor 25 drives and connects change speed gear box 26, motor 25 provides power for change speed gear box 26 work, the output gear case of change speed gear box 26 engages with ring gear 24, the tooth pitch of ring gear 24, tooth depth are consistent with change speed gear box 26 output gear, scribbling grease on ring gear 24 and change speed gear box 26 gear, grease can reduce the frictional resistance in rotary course, central plate 22 is connected to downwards puddler 27, and puddler 27 penetrates agitator 1 inside, puddler 27 being uniformly provided with paddle 28, the present invention used bigger disc mechanism 2 mechanism that rotates to reach bigger torque, the rotary torsion making puddler 27 is bigger, and mixing effect is notable, discharge nozzle 15 lower end is provided with part flow arrangement 3, part flow arrangement 3 includes circular kerve 31, and circular kerve 31 surrounding array is provided with four blow tanks 32, and blow tank 32 tilts upward setting, blow tank 32 top is provided with cover plate 33, is equipped with bracing frame 34 bottom circular kerve 31 and blow tank 32, auxiliary drawing mechanism 4 it is provided with in blow tank 32, auxiliary drawing mechanism 4 includes two conveyings be arrangeding in parallel 41 and the chain 42 run in conveying 41, conveying 41 is positioned at blow tank 32 both sides and is obliquely installed, chain 42 drives and is connected to some sprocket wheels 43, sprocket wheel 43 has hole, location, auxiliary drawing mechanism 4 also includes drive link 45 and blade 44, drive link 45 number is the half of sprocket wheel 43, drive link 45 is provided with roller bearing through conveying 41 and drive link 45 with conveying 41 junction, drive link 45 two ends are sleeved in the hole, location of sprocket wheel 43 to be fixed on by drive link 45 on two chains 42, drive link 45 axis and two hole centre line are on same level line, it is mounted on blade 44 in the middle of each drive link 45, auxiliary drawing mechanism 4 overall construction design is compact, rationally, effectively prevent the cement pollution to conveying 41 simultaneously, cement after stirred falls in the circular kerve 31 of part flow arrangement 3, along with constantly falling into of cement, the while that cement overflowing in blow tank 32 gradually, when in four blow tanks 32, the direction of therein needs cement, in corresponding blow tank 32, auxiliary drawing mechanism 4 starts, blade 44 rotates auxiliary cement and flows out from corresponding blow tank 32 end, structure arranges rationally, effectively prevent when building site workman accepts cement, the problem needing to queue up, split into accept originally cement can only be accepted from discharge nozzle 15 from blow tank 32, effectively raise work efficiency, improve production capacity.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, it is also possible under the premise without departing from this patent objective, make various change.
Claims (4)
1. a cement mixing part flow arrangement, including agitator, rotate disc mechanism, puddler and auxiliary drawing mechanism, it is characterized in that, above described agitator, sidepiece is provided with charging aperture, charging aperture be arranged over striker plate, and striker plate is installed in inside agitator, bottom agitator, least significant end is provided with discharging opening, and discharging opening connects discharge nozzle, and discharge nozzle is provided with valve, it is uniformly welded with support column bottom agitator, and support column is provided with four, described agitator top is provided with rotation disc mechanism, rotates disc mechanism and is made up of skeleton annulus and central plate, and skeleton annulus is divided into six parts, and skeleton annulus is connected to central plate by connecting rod, and skeleton annulus outboard array is provided with ring gear, it is provided with roller bearing between central plate and agitator top, rotating disc mechanism sidepiece and be provided with motor, motor is installed in agitator upper end, and motor-driven connects change speed gear box, the output gear case of change speed gear box engages with ring gear, and the tooth pitch of ring gear, tooth depth are consistent with change speed gear box output gear, central plate is connected to downwards puddler, and puddler penetrates inside agitator, and puddler is uniformly provided with paddle, discharge nozzle lower end is provided with part flow arrangement, and part flow arrangement includes circular kerve, and circular kerve surrounding array is provided with four blow tanks, and blow tank tilts upward setting, is equipped with bracing frame bottom circular kerve and blow tank, auxiliary drawing mechanism it is provided with in blow tank, auxiliary drawing mechanism includes two conveyings be arrangeding in parallel and the chain running in conveying, conveying is positioned at blow tank both sides and is obliquely installed, chain drives and is connected to some sprocket wheels, sprocket wheel has hole, location, auxiliary drawing mechanism also includes drive link and blade, drive link number is the half of sprocket wheel, drive link traverse conveying and drive link and conveying junction are provided with roller bearing, drive link two ends are sleeved in the hole, location of sprocket wheel to be fixed on by drive link on two chains, drive link axis and two hole centre line are on same level line, it is mounted on blade in the middle of each drive link.
2. cement mixing part flow arrangement according to claim 1, it is characterised in that described agitator is stainless steel material and thickness is 9cm.
3. cement mixing part flow arrangement according to claim 1, it is characterised in that described support column is circular thick walled steel tube.
4. cement mixing part flow arrangement according to claim 1, it is characterised in that described blow tank top is provided with cover plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710656741.9A CN107415050B (en) | 2016-02-03 | 2016-02-03 | A kind of cement mixing part flow arrangement |
| CN201610073737.5A CN105619609B (en) | 2016-02-03 | 2016-02-03 | A kind of cement mixing part flow arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610073737.5A CN105619609B (en) | 2016-02-03 | 2016-02-03 | A kind of cement mixing part flow arrangement |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710656741.9A Division CN107415050B (en) | 2016-02-03 | 2016-02-03 | A kind of cement mixing part flow arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105619609A true CN105619609A (en) | 2016-06-01 |
| CN105619609B CN105619609B (en) | 2018-01-12 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610073737.5A Active CN105619609B (en) | 2016-02-03 | 2016-02-03 | A kind of cement mixing part flow arrangement |
| CN201710656741.9A Active CN107415050B (en) | 2016-02-03 | 2016-02-03 | A kind of cement mixing part flow arrangement |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710656741.9A Active CN107415050B (en) | 2016-02-03 | 2016-02-03 | A kind of cement mixing part flow arrangement |
Country Status (1)
| Country | Link |
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| CN (2) | CN105619609B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108214899A (en) * | 2017-12-29 | 2018-06-29 | 梅庆波 | A kind of cement mixing drawing mechanism |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109331692A (en) * | 2018-10-19 | 2019-02-15 | 黄鑫泉 | A kind of metallurgical processing powder mixing charging integration apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3337442A1 (en) * | 1982-11-08 | 1984-05-10 | Sipe S.r.l., Montichiari, Brescia | Conveying apparatus for the reception and further conveying of inert substances such as sand, pebbles, cement etc. |
| CN2843801Y (en) * | 2005-03-03 | 2006-12-06 | 韶关新宇建设机械有限公司 | Dual horizontal axle forced action type roller compacted concrete stirring host |
| CN201295986Y (en) * | 2008-10-24 | 2009-08-26 | 秦皇岛通联重工有限公司 | Bitumen cement mortar mixer |
| CN103817798A (en) * | 2014-03-20 | 2014-05-28 | 河南科技大学 | Concrete stirring device |
| CN204585554U (en) * | 2015-04-26 | 2015-08-26 | 安阳工学院 | A kind of construction site mixer |
| CN204658691U (en) * | 2015-05-15 | 2015-09-23 | 方正 | A kind of concrete mixer being convenient to blanking |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0789645A4 (en) * | 1995-03-14 | 1999-08-25 | Melvin L Black | Method and apparatus for mixing concrete |
| CN202642882U (en) * | 2012-06-11 | 2013-01-02 | 中联重科物料输送设备有限公司 | Rotary distribution device |
| CN203650690U (en) * | 2013-11-22 | 2014-06-18 | 丽水市驱创机电有限公司 | Stirring device |
| CN203680535U (en) * | 2013-12-08 | 2014-07-02 | 重庆思贝肯节能技术开发有限公司 | Foam cement stirring drum with dust collection device and double discharge holes |
| CN203818337U (en) * | 2014-05-05 | 2014-09-10 | 任丘市永基建筑安装工程有限公司 | Concrete conveying and discharging device |
| CN204369155U (en) * | 2014-11-28 | 2015-06-03 | 大连海鑫化工有限公司 | Efficient automatic material distributing device |
| CN204914214U (en) * | 2015-07-31 | 2015-12-30 | 刘金水 | No layering concrete mixing device |
-
2016
- 2016-02-03 CN CN201610073737.5A patent/CN105619609B/en active Active
- 2016-02-03 CN CN201710656741.9A patent/CN107415050B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3337442A1 (en) * | 1982-11-08 | 1984-05-10 | Sipe S.r.l., Montichiari, Brescia | Conveying apparatus for the reception and further conveying of inert substances such as sand, pebbles, cement etc. |
| CN2843801Y (en) * | 2005-03-03 | 2006-12-06 | 韶关新宇建设机械有限公司 | Dual horizontal axle forced action type roller compacted concrete stirring host |
| CN201295986Y (en) * | 2008-10-24 | 2009-08-26 | 秦皇岛通联重工有限公司 | Bitumen cement mortar mixer |
| CN103817798A (en) * | 2014-03-20 | 2014-05-28 | 河南科技大学 | Concrete stirring device |
| CN204585554U (en) * | 2015-04-26 | 2015-08-26 | 安阳工学院 | A kind of construction site mixer |
| CN204658691U (en) * | 2015-05-15 | 2015-09-23 | 方正 | A kind of concrete mixer being convenient to blanking |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108214899A (en) * | 2017-12-29 | 2018-06-29 | 梅庆波 | A kind of cement mixing drawing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105619609B (en) | 2018-01-12 |
| CN107415050A (en) | 2017-12-01 |
| CN107415050B (en) | 2019-05-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Jincheng Inventor after: Wu Shanhua Inventor after: Wang Huijun Inventor before: Liang Xiaoli |
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| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171218 Address after: Road and street 404600 Chongqing city Fengjie County Yongan Street No. 153 Applicant after: Chongqing Joint Construction Engineering (Group) Co., Ltd. Address before: 236646 Fuyang Province Taihe County, Miao old town Liu Liu Village Old Village No. 26 Applicant before: Liang Xiaoli |
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| GR01 | Patent grant |