CN204579200U - A kind of stalk returning device - Google Patents
A kind of stalk returning device Download PDFInfo
- Publication number
- CN204579200U CN204579200U CN201520109071.5U CN201520109071U CN204579200U CN 204579200 U CN204579200 U CN 204579200U CN 201520109071 U CN201520109071 U CN 201520109071U CN 204579200 U CN204579200 U CN 204579200U
- Authority
- CN
- China
- Prior art keywords
- returning device
- outer cover
- blade
- crushing knife
- stalk
- 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.)
- Expired - Fee Related
Links
- 238000010298 pulverizing process Methods 0.000 claims abstract description 12
- 239000010902 straw Substances 0.000 abstract description 8
- 238000009434 installation Methods 0.000 description 5
- 244000025254 Cannabis sativa Species 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 244000046109 Sorghum vulgare var. nervosum Species 0.000 description 2
- 241000209140 Triticum Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
Landscapes
- Threshing Machine Elements (AREA)
Abstract
The utility model discloses a kind of stalk returning device, include outer cover, be arranged on pulverizing structure in described outer cover and exhaust structure, described pulverizing structure includes dwang and some crushing knife tools, described some crushing knife tools are located at the periphery of described dwang respectively, described exhaust structure is rotatably installed in described outer cover, and in described outer cover, form negative pressure when rotating, stalk to be drawn to the default working range of described some crushing knife tools, described dwang can rotate relative to described outer cover, to rotate described some crushing knife tools.In stalk returning device of the present utility model, exhaust structure forms negative pressure when rotating in outer cover; stalk is drawn to the working range of crushing knife tool by this negative pressure, and crushing knife tool with dwang High Rotation Speed crushing straw, thus removes burning from; protection of the environment, and this structure is simple, cost is low.
Description
Technical field
The utility model relates to a kind of farm machinery, particularly relates to a kind of stalk returning device.
Background technology
In traditional agricultural production, crops, as scattered on the ground in having a large amount of stalks after the harvestings such as corn, cotton, rape, Chinese sorghum, paddy rice, wheat, stalk is needed to shift out field, with the plantation of next of obstruction free crops, but the process that shifts out of agricultural crop straw wastes time and energy in season, and the stalk be removed often is dropped or burns, cause the wasting of resources and air pollution nearby.For this reason, there is the stalk returning device of a lot of automation.
Be disclose a kind of tillage machine for recycling stalk to farmland in the Patent Application Publication in August 20 in 2008 as be 200810024456.6 applyings date at application number being 2008.3.21 publication date, and specifically disclose and comprise hanging device, intermediate gearing, gear, chain gearing, peeling knife, tailstock, strickle manipulation device, strickle assembly, press careless axis adjustment device and grass pressing wheel, described intermediate gearing is connected with hanging device, hanging device is connected with dynamic power machine, gear drives peeling knife by chain gearing, strickle assembly is arranged on tailstock by strickle manipulation device, grass pressing wheel is arranged on hanging device by the careless axis adjustment device of pressure, but, above complex structure, cost is high, and it is low by machinery driving efficiency.
Summary of the invention
In view of above content, be necessary to provide a kind of structure simple stalk returning device.
A kind of stalk returning device, include outer cover, be arranged on pulverizing structure in described outer cover and exhaust structure, described pulverizing structure includes dwang and some crushing knife tools, described some crushing knife tools are located at the periphery of described dwang respectively, described exhaust structure is rotatably installed in described outer cover, and in described outer cover, form negative pressure when rotating, stalk to be drawn to the default working range of described some crushing knife tools, described dwang can rotate relative to described outer cover, to rotate described some crushing knife tools.
Preferably, described exhaust structure includes swingle and some exhausting blades, described some exhausting blades are located at the periphery of described swingle respectively, described swingle can rotate relative to described outer cover, to drive described some exhausting blade rotation, described some exhausting blades form negative pressure, stalk to be drawn to the default working range of described some crushing knife tools when rotating in described outer cover.
Preferably, described some exhausting blades are evenly distributed on the periphery of described swingle, and arrange along the direction of the central shaft of parallel described swingle respectively.
Preferably, each exhausting blade includes root and bend, and described root is located on described dwang, and described bend extends to form from described root, and and angle between described root be obtuse angle.
Preferably, the root of adjacent two exhausting blades is mutually vertical.
Preferably, periphery each crushing knife tool corresponding of described dwang is provided with tool rest, and each crushing knife tool is fixed on corresponding tool rest.
Preferably, each crushing knife tool includes the first blade and second blade fixing with described first blade, described first blade and described second blade include tool arm and the cutter head with described tool arm one respectively, the tool arm of described first blade and the tool arm of described second blade are fitted, and be fixed on corresponding tool rest, the cutter head of described first blade extends along contrary direction with the cutter head of described second blade.
Preferably, the central shaft of described dwang and the central shaft of described swingle are parallel to each other.
Preferably, described stalk returning device also includes actuator, driving wheel, drive, the first driven pulley and the second driven pulley, and described actuator connects described driving wheel, and drives described driving wheel to rotate; Described driving wheel, described drive, described first driven pulley and described second driven pulley are arranged in order, and engage each other, and described first driven pulley connects described dwang, and described second driven pulley connects described swingle.
Preferably, described stalk returning device also includes and strikes off bar, described in strike off bar and be arranged on described outer cover.
Compared with prior art; in above-mentioned stalk returning device; exhaust structure forms negative pressure when rotating in outer cover; stalk is drawn to the working range of crushing knife tool by this negative pressure; crushing knife tool is with dwang High Rotation Speed crushing straw; thus remove burning from, protection of the environment, and this structure is simple, cost is low.
Accompanying drawing explanation
Fig. 1 is a three-dimensional assembly diagram of a better embodiment of the utility model stalk returning device.
Fig. 2 is another visual angle figure of stalk returning device in Fig. 1.
Fig. 3 is a cutaway view of stalk returning device in Fig. 1.
Fig. 4 is a three-dimensional exploded view of stalk returning device in Fig. 1.
Fig. 5 is an enlarged drawing of V part in Fig. 4.
Main element symbol description
| Stalk returning device | 100 |
| Outer cover | 10 |
| Drives structure | 20 |
| Exhaust structure | 30 |
| Pulverize structure | 60 |
| Strike off bar | 70 |
| Dwang | 40 |
| Crushing knife tool | 50 |
| Top board | 11 |
| First cover plate | 12 |
| Second cover plate | 13 |
| Header board | 14 |
| Rear plate | 15 |
| Side plate | 16 |
| Receiving space | 17 |
| Installing plate | 121 |
| Rotating hole | 161 |
| Rotation hole | 162 |
| Installation sheet | 163 |
| Pivoting hole | 1631 |
| Mounting shell | 21 |
| Actuator | 22 |
| Driving wheel | 23 |
| Drive | 24 |
| First driven pulley | 25 |
| Second driven pulley | 26 |
| Swingle | 31 |
| Exhausting blade | 32 |
| Column spinner | 311 |
| Root | 321 |
| Bend | 322 |
| Rotational Cylindrical | 41 |
| Tool rest | 43 |
| Locking plate | 431 |
| Installing plate | 51 |
| Blade | 52 |
| Tool arm | 511 |
| Cutter head | 512 |
| Pivot post | 71 |
Following embodiment will further illustrate the utility model in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1 to Fig. 3, in a better embodiment of the present utility model, a stalk returning device 100 includes an outer cover 10, and is arranged on drives structure 20, exhaust structure 30, on described outer cover 10 and pulverizes structure 60 and and strike off bar 70.Described pulverizing structure 60 includes a dwang 40 and some crushing knife tools 50.In the present embodiment, bar 70 is struck off described in for cylinder.Described stalk returning device 100, in order to pulverize various crops, as the stalk of corn, cotton, rape, Chinese sorghum, wheat, rice, weeds etc., and is arranged on a travelling platform, as tractor or Athey wheel etc.
Described outer cover 10 includes the rear plate 15 of top board 11,1 first cover plate 12,1 second cover plate 13, header board 14, one and biside plate 16.Described top board 11, described first cover plate 12, described second cover plate 13, described header board 14, described rear plate 15 and described biside plate 16 surround a receiving space 17 (see Fig. 3) jointly, and described receiving space 17 is in order to accommodate described exhaust structure 40, described pulverizing structure 60 and stalk.Described top board 11 is roughly parallel to the soil of planting various crops.Described first cover plate 12 and described second cover plate 13 are respectively from the downward-sloping extension in both sides relatively of described top board 11.Described header board 14 and described rear plate 15 extend to form downwards from described first cover plate 12 and described second cover plate 13 respectively.Described biside plate 16 lays respectively at the other both sides of described top board 11, and connects described first cover plate 12, described second cover plate 13, described header board 14 and described rear plate 15 respectively.In one embodiment, described first cover plate 12 and the angle of described second cover plate 13 respectively and between described top board 11 are obtuse angle, angle between described header board 14 and described first cover plate 12 is obtuse angle, and it is substantially vertical with described top board 11, angle between described rear plate 15 and described second cover plate 13 is obtuse angle, and substantially vertical with described top board 11, described both sides 16 are roughly parallel to each other.In addition, be also provided with stationary knife (not shown) in described outer cover 10, described stationary knife can cut off soft weeds.
One end of described first cover plate 12 is provided with an installing plate 121 near wherein side plate 16, and described installing plate 121 is in order to install described drives structure 20, and substantially vertical with described first cover plate 12.The corresponding described exhaust structure 40 of described biside plate 16 and described pulverizing structure 60 offer rotating hole 161 and a rotation hole 162 (see Fig. 4) respectively.Strike off bar 70 described in described biside plate 16 correspondence and be separately installed with an installation sheet 163, described installation sheet 163 near described header board 14, and offers a pivoting hole 1631 (see Fig. 4) respectively.Two installation sheets 163 are parallel to each other, and part exposes described header board 14.
Refer to Fig. 4, described drives structure 20 includes one and is arranged on mounting shell 21, actuator 22, driving wheel 23, drive 24,1 first driven pulley 25 on described outer cover 10 and one second driven pulley 26.Described actuator 22 is arranged on described installing plate 121, and is connected with described driving wheel 23, rotates in order to drive described driving wheel 23.Described driving wheel 23, described drive 24, described first driven pulley 25 and described second driven pulley 26 are arranged in order and are arranged in described mounting shell 21, and engage each other.Described first driven pulley 25 is connected with described dwang 40, and described second driven pulley 26 is connected with described exhaust structure 30.Described driving wheel 23 rotates and drives described drive 24 to rotate, and described drive 24 drives described first driven pulley 25 to rotate, thus rotates described dwang 40, and described second driven pulley 26 rotates with described first driven pulley 25, thus rotates described exhaust structure 40.In the present embodiment, described driving wheel 23, described drive 24, described first driven pulley 25 and described second driven pulley 26 are spur gear, and described actuator 22 is hydraulic motor.Described hydraulic motor is worked by hydraulic pump drive, further, hydraulic system is provided with between hydraulic pump and hydraulic motor, described hydraulic system comprises fuel tank, check valve, overflow valve and magnetic valve, under the effect of hydraulic pump, hydraulic oil flows to through fuel tank, check valve, overflow valve and magnetic valve and drives hydraulic motor work.
Please continue to refer to Fig. 4, described exhaust structure 30 includes a swingle 31 and some exhausting blades 32.Described swingle 31 roughly in cylinder, and is respectively equipped with a column spinner 311.Described column spinner 311 is rotatably installed in corresponding rotating hole 161, and wherein a column spinner 311 connects described second driven pulley 26.Described swingle 31 is roughly in cylinder, and distance between length and described biside plate 16 is roughly equal.Described some exhausting blades 32 are located at the periphery of described swingle 31 respectively, and are uniformly distributed.Preferably, described some exhausting blades 32 are arranged along the direction of the central shaft of parallel described swingle 31 respectively.Each exhausting blade 32 includes root 321 and a bend 322.Described bend 322 is bent to form from described root 321, and and angle between described root 321 be obtuse angle.In the present embodiment.The root 321 of adjacent two exhausting blades 32 is substantially vertical, and the length of each exhausting blade 32 is suitable with the length of described swingle 31.
Refer to Fig. 4 and Fig. 5, the two ends of described dwang 40 are respectively equipped with a Rotational Cylindrical 41, and described Rotational Cylindrical 41 is rotatably installed in corresponding rotation hole 162, and wherein a Rotational Cylindrical 41 connects described first driven pulley 25.In the present embodiment, described dwang 40 is in cylinder, and distance between length and described biside plate 16 is roughly equal.The periphery of described dwang 40 is provided with some tool rests 43, and the quantity of described some tool rests 43 is suitable with the quantity of described some crushing knife tools 50.Described some tool rests 43 are divided into four rows, and four row's tool rests 43 are located on the central axis direction of parallel described dwang 40 respectively.Each tool rest 43 includes two locking plates 431 be parallel to each other, and each locking plate 431 offers a lockhole (not shown).
Each crushing knife tool 50 includes one first blade 51 and one second blade 52.Described first blade 51 and described second blade 52 by weld or screw fixed form is fixed together, and include tool arm 511 and the cutter head 512 extended from described tool arm 511 respectively.The tool arm 511 of described first blade 51 fits together with the tool arm 511 of described second blade 52, and the central shaft of the vertical described dwang 40 of difference, the cutter head 512 of described first blade 51 extends in opposite direction with the cutter head 512 of described second blade 52.Described tool arm 511 offers a through hole (not shown) at the corresponding described lockhole in one end away from described cutter head 512.
Refer to Fig. 1-3, during assembling, described crushing knife tool 50 is between two locking plates 331 of a tool rest 33, and pass through locking part, lock corresponding lockhole and through hole as screw etc. and be arranged on corresponding tool rest 33, other crushing knife tool 50 is also fixed on corresponding tool rest 33 by identical mode.Described some crushing knife tools 50 are arranged on the periphery of described dwang 40 thus, and are arranged in four rows, and each crushing knife tool 50 arranged is arranged along the direction of the central shaft of parallel described dwang 40.In another embodiment, described some crushing knife tools 50 can arrange in the shape of a spiral.
The Rotational Cylindrical 41 at described dwang 40 two ends snaps in corresponding rotation hole 162 respectively, thus described dwang 40 rotation is fixed between described biside plate 16.At this moment, the central shaft of described dwang 40 is substantially vertical with described biside plate 16, and almost parallel with described top board 11.Described pulverizing structure 60 is fixed on described outer cover 10 thus, and with described top board 11, described first cover plate 12, described second cover plate 13, described header board 14 and described rear plate 15, there is default distance respectively, thus ensureing that described pulverizing structure 60 is in crushing straw process, described outer cover 10 has the space holding stalk.In addition, described crushing knife tool 50 part when turning to below described dwang 40 exposes described outer cover 10, thus kiss the earth, ensure effective crushing straw.
The column spinner 311 at described swingle 31 two ends inserts in the rotating hole 161 of described biside plate 16 respectively, thus is arranged on described outer cover 10 by described exhaust structure 30.At this moment, the central shaft of described swingle 31 is parallel with described top board 11, and substantially vertical with described biside plate 16.In addition, the central shaft of described swingle 31 is parallel with the central shaft of described dwang 40.
Described mounting shell 21 is arranged on side plate 16, and near described actuator 22.Described actuator 22 is arranged on the installing plate 121 of described outer cover 10, and is connected with described driving wheel 23.Described first driven pulley 25 is connected with a Rotational Cylindrical 41 of described dwang 40.Described second driven pulley 26 is connected with a column spinner 311 of described swingle 31.
The described pivot post 71 striking off bar 70 two ends snaps in the pivoting hole 1631 of two installation sheets 163 respectively, thus the described bar 70 that strikes off is rotated the front end being fixed on described header board 14.The described bar 70 that strikes off can rotate relative to described outer cover 10, can adjust the working depth of device 100 of returning crop stocks to the field on the one hand, can not quit work, the straw of pulverizing can be raked on the one hand in addition because crushing knife tool 50 buries too dark.In the present embodiment, described in strike off bar 70 for cylinder, and central shaft is parallel to the central shaft of described dwang 40, with the stalk pulverized of effectively raking.
During crushing straw, described travelling platform work drives described stalk returning device 100 to move, simultaneously, described actuator 22 drives described driving wheel 23 to rotate, described driving wheel 23 drives described drive 24 to rotate, described first driven pulley 25 rotates with described drive 24, and drives described second driven pulley 26 to rotate.Described in described second driven pulley 26 rotating drive, swingle 31 rotates, and described some exhausting blades 32 rotate with described swingle 31, and in described outer cover 10, forms negative pressure when rotating, stalk to be drawn to the default working range of described some crushing knife tools 50.Described dwang 40 drives described some crushing knife tools 50 High Rotation Speed, described some crushing knife tool 50 crushing straw also fields, thus exempts burning, protection of the environment, and this structure is simple, cost is low.
In addition, by the flow direction of energy regulator solution force feed, thus reach the object adjusting hydraulic motor and turn to, make the adjustability of hydraulic motor very good, like this, according to returning crop stocks to the field, device 100 is arranged on different positions, suitable adjustment hydraulic motor turns to, thus adjusting turning to of described dwang 40, and then adjustment the turning to of crushing knife tool 50, device 100 operating efficiency that makes to return crop stocks to the field is higher.
Claims (10)
1. a stalk returning device, include outer cover and be arranged on the pulverizing structure in described outer cover, it is characterized in that: described stalk returning device also includes exhaust structure, described pulverizing structure includes dwang and some crushing knife tools, described some crushing knife tools are located at the periphery of described dwang respectively, described exhaust structure is rotatably installed in described outer cover, and in described outer cover, form negative pressure when rotating, stalk to be drawn to the default working range of described some crushing knife tools, described dwang can rotate relative to described outer cover, to rotate described some crushing knife tools.
2. stalk returning device as claimed in claim 1, it is characterized in that: described exhaust structure includes swingle and some exhausting blades, described some exhausting blades are located at the periphery of described swingle respectively, described swingle can rotate relative to described outer cover, to drive described some exhausting blade rotation, described some exhausting blades form negative pressure, stalk to be drawn to the default working range of described some crushing knife tools when rotating in described outer cover.
3. stalk returning device as claimed in claim 2, is characterized in that: described some exhausting blades are evenly distributed on the periphery of described swingle, and arranges along the direction of the central shaft of parallel described swingle respectively.
4. stalk returning device as claimed in claim 2, it is characterized in that: each exhausting blade includes root and bend, described root is located on described dwang, and described bend extends to form from described root, and and angle between described root be obtuse angle.
5. stalk returning device as claimed in claim 4, is characterized in that: the root of adjacent two exhausting blades is mutually vertical.
6. stalk returning device as claimed in claim 1, is characterized in that: periphery each crushing knife tool corresponding of described dwang is provided with tool rest, and each crushing knife tool is fixed on corresponding tool rest.
7. stalk returning device as claimed in claim 6, it is characterized in that: each crushing knife tool includes the first blade and second blade fixing with described first blade, described first blade and described second blade include tool arm and the cutter head with described tool arm one respectively, the tool arm of described first blade and the tool arm of described second blade are fitted, and be fixed on corresponding tool rest, the cutter head of described first blade extends along contrary direction with the cutter head of described second blade.
8. stalk returning device as claimed in claim 2, is characterized in that: the central shaft of described dwang and the central shaft of described swingle are parallel to each other.
9. stalk returning device as claimed in claim 2, it is characterized in that: described stalk returning device also includes actuator, driving wheel, drive, the first driven pulley and the second driven pulley, described actuator connects described driving wheel, and drives described driving wheel to rotate; Described driving wheel, described drive, described first driven pulley and described second driven pulley are arranged in order, and engage each other, and described first driven pulley connects described dwang, and described second driven pulley connects described swingle.
10. stalk returning device as claimed in claim 1, is characterized in that: described stalk returning device also includes and strikes off bar, described in strike off bar and be arranged on described outer cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520109071.5U CN204579200U (en) | 2015-02-15 | 2015-02-15 | A kind of stalk returning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520109071.5U CN204579200U (en) | 2015-02-15 | 2015-02-15 | A kind of stalk returning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204579200U true CN204579200U (en) | 2015-08-26 |
Family
ID=53915422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520109071.5U Expired - Fee Related CN204579200U (en) | 2015-02-15 | 2015-02-15 | A kind of stalk returning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204579200U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104604449A (en) * | 2015-02-15 | 2015-05-13 | 李阳铭 | Straw returning device |
| CN113207430A (en) * | 2021-04-22 | 2021-08-06 | 广西壮族自治区农业科学院 | Sugarcane leaf processing machine for collecting, crushing and returning all-terrain fields |
-
2015
- 2015-02-15 CN CN201520109071.5U patent/CN204579200U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104604449A (en) * | 2015-02-15 | 2015-05-13 | 李阳铭 | Straw returning device |
| CN113207430A (en) * | 2021-04-22 | 2021-08-06 | 广西壮族自治区农业科学院 | Sugarcane leaf processing machine for collecting, crushing and returning all-terrain fields |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160429 Address after: 537522 Guangxi five Feng Machinery Co., Ltd. the Guangxi Zhuang Autonomous Region Rongxian County Economic Development Zone Patentee after: GUANGXI WUFENG MACHINERY CO., LTD. Address before: Yuzhou District People's road 537000 the Guangxi Zhuang Autonomous Region Yulin City No. 398 Patentee before: Li Yangming |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20210215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |