CN108521906B - Integration tea tree planting device - Google Patents
Integration tea tree planting device Download PDFInfo
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- CN108521906B CN108521906B CN201710115907.6A CN201710115907A CN108521906B CN 108521906 B CN108521906 B CN 108521906B CN 201710115907 A CN201710115907 A CN 201710115907A CN 108521906 B CN108521906 B CN 108521906B
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- rotating shaft
- nutrient
- device body
- pneumatic
- soil loosening
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
- A01B49/06—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising
- A01B49/065—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising the soil-working tools being actively driven
Abstract
The invention discloses an integrated tea tree planting device which comprises a device body, a pneumatic device, a control device, a first transmission device, a soil loosening device and a nutrient discharging device, wherein the pneumatic device is arranged on the device body; the nutrient discharging device is arranged at the rear side of the device body; the pneumatic device is arranged at the front end of the inner side of the device body, and the first transmission device is arranged at the lower end of the pneumatic device; the soil loosening device is connected with the first transmission device; the control device is arranged at the front end of the device body and is respectively connected with the first transmission device, the nutrient discharging device and the pneumatic device. The invention provides an integrated tea tree planting device, wherein discharging devices are arranged on two sides of the rear end of a device body and used for uniformly discharging nutrients; the front end of the device body is provided with the soil loosening device, and the upper end of the soil loosening device is provided with the pneumatic device, so that the soil loosening device can conveniently move up and down to loosen soil, and the integrated operation is facilitated; the device has simple structure and convenient use.
Description
Technical Field
The invention relates to the field of agricultural mechanical equipment, in particular to an integrated tea tree planting device.
Background
In the tea planting process, the soil needs to be turned over and base fertilizer is applied, and the soil needs to be deeply turned over, leveled and sufficiently applied with the base fertilizer before planting; thus, manual operation is required; in addition, people usually plough and loosen the soil mechanically in a large area, so that fertilizer is easily wasted; in the planting process, weeds in the soil are easy to grow; moreover, the planting process usually comprises gully planting and fixed-point pit digging planting, which all need to be carried out by manual steps.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an integrated tea tree planting device which can automatically loosen soil in gullies and plant tea trees at fixed points; the large-area soil loosening is reduced, the large-area rapid growth of weeds is prevented, and the manpower expenditure is reduced.
In order to solve the technical problems, the invention provides an integrated tea tree planting device for a body, which comprises a device body, a pneumatic device, a control device, a first transmission device, a soil loosening device and a nutrient discharging device; the nutrient discharging device is arranged on the rear side of the device body; the device body comprises a caster device, a positioning plate, a fixed box and a push handle; the caster device comprises a caster, a telescopic adjusting rod and a limit nut; the caster wheel is arranged at the lower end of the telescopic adjusting rod, and the limit nut is arranged at the upper end of the adjusting rod; the inner side of the fixed box is in a cavity shape, and the front end and the rear end of two sides of the lower end of the fixed box are provided with rectangular through grooves; the positioning plate is arranged in the rectangular through groove at the lower end of the fixed box, and the telescopic adjusting rods are respectively matched with the positioning plate; the nutrient discharging device is arranged at the front end of the fixed box and comprises a nutrient frame, a first coupler, a second sleeve, a second rotating shaft, a vibrator and a second servo motor; the second servo motor is arranged at the upper end of the inner side of the nutrient frame; the first coupler is connected with the second servo motor, and the second rotating shaft is connected with the first coupler; the second sleeve is arranged on the lower end plane of the device body, and the second rotating shaft is arranged in the second sleeve; the vibrators are arranged on the left side and the right side of the nutrient frame; the pneumatic device is arranged at the front end of the inner side of the device body, and the first transmission device is arranged at the lower end of the pneumatic device; the pneumatic device comprises a push plate, a push rod and a pneumatic pressure cylinder; the air pressure booster cylinder is arranged on the upper plane of the inner side of the device body, the push rods are arranged on the left side and the right side of the lower end of the air cylinder booster cylinder, and the push plates are arranged on the lower plane of the push rods; the first transmission device is arranged at the lower end of the push plate; the first transmission device comprises a power supply, a first servo motor, a second coupler and a first rotating shaft; the first servo motor is connected with the power supply, and the second coupling is connected with the first servo motor; the first rotating shaft is connected with the second coupler; the soil loosening device is connected with the first transmission device; the soil loosening device comprises a cutter rotating shaft and a rotary soil loosening cutter; the cutter rotating shaft is in a circular shaft shape, and the lower end of the cutter rotating shaft is in a trapezoid shape; the lower end of the cutter rotating shaft is provided with a fixed threaded hole, and the rotary scarification cutters are longitudinally arranged and transversely arranged to be matched with the fixed threaded hole on the outer side of the cutter rotating shaft; the front end of the cutter rotating shaft is in a cross drill shape; the upper end of the cutter rotating shaft is provided with an external thread; a circular groove is formed in the front plane of the cutter rotating shaft, and an internal thread is formed in the circular groove; the control device is arranged at the front end of the device body and is respectively connected with the first transmission device, the nutrient discharging device and the pneumatic device.
Preferably, the control device comprises a control button and a singlechip;
the control button is arranged at the front end of the device body, and the singlechip is arranged in the device body;
the control button is connected with the single chip microcomputer.
Preferably, the soil loosening device is arranged on the left side and the right side of the device body and corresponds to the nutrient discharging device.
Preferably, the lower end of the device body is provided with a limit screw and is matched with the caster device.
By adopting the technical scheme, the integrated tea tree planting device provided by the invention is characterized in that the nutrient discharging device is arranged at the rear side of the device body; the pneumatic device is arranged at the front end of the inner side of the device body, and the first transmission device is arranged at the lower end of the pneumatic device; the soil loosening device is connected with the first transmission device; the control device is arranged at the front end of the device body and is connected with the first transmission device, the nutrient discharging device and the pneumatic device respectively. The nutrient discharging planting device has the advantages that nutrient discharging planting is not needed to be used for discharging nutrients on the left side and the right side of the device body like a traditional integrated tea tree planting device in the using process; in the advancing process, the first transmission device is driven by the pneumatic device to move downwards to loosen the soil in the left and right ditches; the device is convenient to use, reduces the human cost.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural view of the ripping apparatus of the present invention.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention is further illustrated with reference to the figures and examples.
As shown in fig. 1 and 2, an integrated tea tree planting device comprises a device body 501, a pneumatic device 502, a control device 503, a first transmission device 504, a soil loosening device 505 and a nutrient discharging device 506;
the device body 501 comprises a caster device 301, a positioning plate 302, a fixed box 303 and a pushing handle 304;
the caster device 301 comprises a caster, a telescopic adjusting rod and a limit nut;
the trundle is arranged at the lower end of the telescopic adjusting rod, and the limit nut is arranged at the upper end of the adjusting rod;
the inner side of the fixed box 303 is in a cavity shape, and the front end and the rear end of two sides of the lower end of the fixed box are provided with rectangular through grooves;
the positioning plate 302 is arranged in a rectangular through groove at the lower end of the fixed box 303, and the telescopic adjusting rods are respectively matched with the positioning plate 302;
the lower plane of the fixed box 303 is provided with a limit screw and is communicated with rectangular through grooves at two sides of the lower end of the fixed box 303, so that the distance between the left and right positioning plates 302 can be conveniently adjusted;
the pushing handle 304 is arranged at the front end of the fixed box 303;
the lower end of the device body 501 is provided with a limit screw and is matched with the caster devices 301, so that the width of the caster devices on two sides can be conveniently adjusted;
the nutrient discharging device 506 is arranged at the rear side of the device body 501;
the nutrient discharging device 506 comprises a nutrient frame 401, a first coupler 402, a second sleeve 403, a second rotating shaft 404, a vibrator 405 and a second servo motor 406;
the nutrient frame 401 is of a trapezoidal structure, so that nutrients inside the nutrient frame 401 can be collected downwards conveniently;
the second servo motor 406 is arranged at the upper end of the inner side of the nutrient frame 401;
the first coupling 402 is connected with the second servo motor 406, and the second rotating shaft 404 is connected with the first coupling 402;
the first couplers 402 are arranged on the left side and the right side of the lower plane of the nutrient frame 401;
the second sleeve 403 is arranged on the lower end plane of the device body 501, and the second rotating shaft 404 is arranged in the second sleeve 403;
the vibrators 405 are arranged on the left side and the right side of the nutrient frame 401;
nutrients in the nutrient frame 401 can flow out conveniently through the second rotating shaft 404;
the pneumatic device 502 is arranged at the front end of the inner side of the device body 501, and the first transmission device 504 is arranged at the lower end of the pneumatic device 502;
the pneumatic device 502 is used for controlling the first transmission device 504 to move up and down, so that the soil loosening device 505 can loosen soil conveniently;
the pneumatic device 502 comprises a push plate 601, a push rod 602 and a pneumatic pressure cylinder 603;
the air pressure cylinder 603 is arranged on the upper plane of the inner side of the device body 501, the push rod 602 is arranged on the left side and the right side of the lower end of the air pressure cylinder 603, and the push plate 601 is arranged on the lower plane of the push rod 602;
the first transmission device 504 is arranged at the lower end of the push plate 601;
the first transmission 504 comprises a relay 801, a first servo motor 802, a second coupling 803 and a first rotating shaft 804;
the first servo motor 802 is connected with the relay 801, and the second coupling 803 is connected with the first servo motor 802;
the first rotating shaft 804 is connected with the second coupling 803;
the soil loosening device 505 is connected with the first transmission device 504;
the ripping device 505 includes a blade rotation shaft 101, a rotary ripping blade 102;
the cutter rotating shaft 101 is in a circular shaft shape, and the lower end thereof is in a trapezoidal shape;
the lower end of the cutter rotating shaft 101 is provided with a fixed threaded hole 203, and the cutter rotating shaft is arranged longitudinally and transversely;
the rotary scarification blade 102 is matched with a fixed threaded hole on the outer side of the cutter rotating shaft 101;
the front end of the cutter rotating shaft 101 is in a cross drill 202 shape;
the upper end of the cutter rotating shaft 101 is provided with an external thread 201;
a circular groove is formed in the front plane of the cutter rotating shaft 101, and an internal thread 204 is formed in the circular groove;
the left side and the right side of the two sides of the rotary scarification blade 102 are blade-shaped, and the front end of the rotary scarification blade is triangular;
the control device 503 is arranged at the front end of the device body 501, and is respectively connected with the first transmission device 504, the nutrient discharging device 506 and the pneumatic device 502 together with the control device 503;
the control device 503 comprises a control button 701 and a singlechip 702;
the control button 701 is provided at the front end of the apparatus body 501, and the singlechip 702 is provided in the apparatus body 501;
the control button 701 is connected with the singlechip 702;
the control button 701 is used for controlling the connection of the first transmission device 504, the nutrient discharging device 506 and the pneumatic device 502;
through the automatic linear ejection of compact of control nutrient discharging device to move its first transmission downwards through device body front end pneumatic means, and loosen the soil through the nutrient discharging line shape.
Preferably, the control device 503 comprises a control button 701 and a single chip microcomputer 702;
the control button 701 is provided at the front end of the apparatus body 501, and the singlechip 702 is provided in the apparatus body 501;
the control button 701 is connected with the singlechip 702;
the control button 701 is used for controlling the connection of the first transmission device 504, the nutrient discharging device 506 and the pneumatic device 502;
through the automatic linear ejection of compact of control nutrient discharging device to move its first transmission downwards through device body front end pneumatic means, and loosen the soil through the nutrient discharging line shape.
Preferably, the soil loosening devices 505 are arranged on the left side and the right side of the device body 501 and correspond to the nutrient discharging devices 506, so that linear soil loosening on the two sides is facilitated; the total soil loosening is solved, the growth of the weeds is controlled, and the nutrients are absorbed.
Preferably, the lower end of the device body 501 is provided with a limit screw, and the limit screw is matched with the caster device 301, so that the width of the caster devices on two sides can be conveniently adjusted.
When in use: the control device is used for controlling the nutrient discharging device, and a second servo motor on the inner side of the nutrient discharging device drives the second rotating shaft to rotate and downwards flow out through the inner wall of the second sleeve; the device body is pushed by hands, and the control device controls the pneumatic device to operate downwards to enable the first transmission device to move downwards, loosen the soil and uniformly mix the discharged nutrients on the two sides of the nutrient discharging device at the front end with the soil, so that the growth of tea trees is facilitated; the control button is arranged in the middle of the push handle, so that the operation is convenient; the caster wheel device can freely adjust the telescopic adjusting rod; the device body comprises a caster device, a positioning plate, a fixed box and a push handle; the caster device comprises a caster, a telescopic adjusting rod and a limit nut; the trundle is arranged at the lower end of the telescopic adjusting rod, and the limit nut is arranged at the upper end of the adjusting rod; the inner side of the fixed box is in a cavity shape, and the front end and the rear end of two sides of the lower end of the fixed box are provided with rectangular through grooves; the positioning plate is arranged in the rectangular through groove at the lower end of the fixed box, and the telescopic adjusting rods are respectively matched with the positioning plate; the lower plane of the fixed box is provided with a limit screw and is communicated with the rectangular through grooves at the two sides of the lower end of the fixed box, so that the distance between the left and right positioning plates can be conveniently adjusted; the push handle is arranged at the front end of the fixed box; the nutrient discharging device is arranged at the rear side of the device body; the nutrient discharging device comprises a nutrient frame, a first coupler, a second sleeve, a second rotating shaft, a vibrator and a second servo motor; the nutrient frame is in a trapezoidal structure, so that nutrients inside the nutrient frame can be collected downwards conveniently; the second servo motor is arranged at the upper end of the inner side of the nutrient frame; the first coupler is connected with the second servo motor, and the second rotating shaft is connected with the first coupler; the first couplings are arranged on the left side and the right side of the lower plane of the nutrient frame; the second sleeve is arranged on the lower end plane of the device body, and the second rotating shaft is arranged in the second sleeve; the vibrators are arranged on the left side and the right side of the nutrient frame; nutrients in the nutrient frame can flow out conveniently through the second rotating shaft; the pneumatic device is arranged at the front end of the inner side of the device body, and the first transmission device is arranged at the lower end of the pneumatic device; the pneumatic device is used for controlling the first transmission device to move up and down, so that the soil loosening device can loosen soil conveniently; the pneumatic device comprises a push plate, a push rod and a pneumatic pressure cylinder; the air pressure cylinder is arranged on the upper plane of the inner side of the device body, the push rods are arranged on the left side and the right side of the lower end of the air cylinder pressure cylinder, and the push plates are arranged on the lower plane of the push rods; the first transmission device is arranged at the lower end of the push plate; the first transmission device comprises a power supply, a first servo motor, a second coupler and a first rotating shaft; the first servo motor is connected with the power supply, and the second coupling is connected with the first servo motor; the first rotating shaft is connected with the second coupler; the soil loosening device is connected with the first transmission device; the soil loosening device comprises a cutter rotating shaft and a rotary soil loosening cutter; the cutter rotating shaft is in a circular shaft shape, and the lower end of the cutter rotating shaft is in a trapezoid shape; the lower end of the cutter rotating shaft is provided with a fixed threaded hole, and the cutter rotating shaft is longitudinally arranged and transversely arranged; the rotary scarification knife is matched with a fixed threaded hole on the outer side of the rotary shaft of the cutter; the front end of the cutter rotating shaft is in a cross drill shape; the upper end of the cutter rotating shaft is provided with an external thread; a circular groove is formed in the front plane of the cutter rotating shaft, and internal threads are formed in the circular groove; the left side and the right side of the two sides of the rotary scarification blade are blade-shaped, and the front end of the rotary scarification blade is triangular; the control device is arranged at the front end of the device body and is respectively connected with the first transmission device, the nutrient discharging device and the pneumatic device.
The invention provides an integrated tea tree planting device, wherein discharging devices are arranged on two sides of the rear end of a device body and used for uniformly discharging nutrients; the front end of the device body is provided with the soil loosening device, and the upper end of the soil loosening device is provided with the pneumatic device, so that the soil loosening device can conveniently move up and down to loosen soil, and the integrated operation is facilitated; the device has simple structure and convenient use.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (4)
1. An integrated tea tree planting device is characterized by comprising a device body, a pneumatic device, a control device, a first transmission device, a soil loosening device and a nutrient discharging device;
the nutrient discharging device is arranged on the rear side of the device body;
the device body comprises a caster device, a positioning plate, a fixed box and a push handle;
the caster device comprises a caster, a telescopic adjusting rod and a limit nut;
the caster wheel is arranged at the lower end of the telescopic adjusting rod, and the limit nut is arranged at the upper end of the adjusting rod;
the inner side of the fixed box is in a cavity shape, and the front end and the rear end of two sides of the lower end of the fixed box are provided with rectangular through grooves;
the positioning plate is arranged in the rectangular through groove at the lower end of the fixed box, and the telescopic adjusting rods are respectively matched with the positioning plate;
the push handle is arranged at the front end of the fixed box;
the nutrient discharging device comprises a nutrient frame, a first coupler, a second sleeve, a second rotating shaft, a vibrator and a second servo motor;
the second servo motor is arranged at the upper end of the inner side of the nutrient frame;
the first coupler is connected with the second servo motor, and the second rotating shaft is connected with the first coupler;
the second sleeve is arranged on the lower end plane of the device body, and the second rotating shaft is arranged in the second sleeve;
the vibrators are arranged on the left side and the right side of the nutrient frame;
the pneumatic device is arranged at the front end of the inner side of the device body, and the first transmission device is arranged at the lower end of the pneumatic device;
the pneumatic device comprises a push plate, a push rod and a pneumatic pressure cylinder;
the air pressure booster cylinder is arranged on the upper plane of the inner side of the device body, the push rods are arranged on the left side and the right side of the lower end of the air cylinder booster cylinder, and the push plates are arranged on the lower plane of the push rods;
the first transmission device is arranged at the lower end of the push plate;
the first transmission device comprises a power supply, a first servo motor, a second coupler and a first rotating shaft;
the first servo motor is connected with the power supply, and the second coupling is connected with the first servo motor;
the first rotating shaft is connected with the second coupler;
the soil loosening device is connected with the first transmission device;
the soil loosening device comprises a cutter rotating shaft and a rotary soil loosening cutter;
the cutter rotating shaft is in a circular shaft shape, and the lower end of the cutter rotating shaft is in a trapezoid shape;
the lower end of the cutter rotating shaft is provided with a fixed threaded hole, and the cutter rotating shaft is longitudinally arranged and transversely arranged;
the rotary scarification knife is matched with a fixed threaded hole on the outer side of the rotary shaft of the cutter;
the front end of the cutter rotating shaft is in a cross drill shape;
the upper end of the cutter rotating shaft is provided with an external thread;
a circular groove is formed in the front plane of the cutter rotating shaft, and an internal thread is formed in the circular groove;
the control device is arranged at the front end of the device body and is respectively connected with the first transmission device, the nutrient discharging device and the pneumatic device.
2. The integrated tea tree planting device of claim 1, wherein the control device comprises a control button and a single chip microcomputer;
the control button is arranged at the front end of the device body, and the singlechip is arranged in the device body;
the control button is connected with the single chip microcomputer.
3. The integrated tea tree planting device according to claim 1, wherein the soil loosening devices are arranged on the left side and the right side of the device body and correspond to the nutrient discharging devices.
4. An integrated tea tree planting device as claimed in claim 1, wherein the lower end of the device body is provided with a limit screw and is matched with the caster device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710115907.6A CN108521906B (en) | 2017-03-01 | 2017-03-01 | Integration tea tree planting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710115907.6A CN108521906B (en) | 2017-03-01 | 2017-03-01 | Integration tea tree planting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108521906A CN108521906A (en) | 2018-09-14 |
| CN108521906B true CN108521906B (en) | 2020-12-11 |
Family
ID=63488629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710115907.6A Expired - Fee Related CN108521906B (en) | 2017-03-01 | 2017-03-01 | Integration tea tree planting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108521906B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3320938B2 (en) * | 1995-03-10 | 2002-09-03 | 落合刃物工業株式会社 | Riding work machine for tea garden |
| JP2004215592A (en) * | 2003-01-16 | 2004-08-05 | Terada Seisakusho Co Ltd | Traveling type tea garden tending machine |
| CN102405702B (en) * | 2011-09-22 | 2013-10-02 | 中国农业大学 | Vibration deep-scarification and fertilization precision drill |
| CN204482243U (en) * | 2015-01-29 | 2015-07-22 | 兖州市德来福机械制造有限公司 | A kind of vibrating deep-scarification fertilizer distributor |
| CN204579044U (en) * | 2015-05-05 | 2015-08-26 | 陈平 | One planting fruit-trees operation all-in-one |
| CN204741708U (en) * | 2015-06-29 | 2015-11-11 | 银川市海澜金沙生态观光园科技有限公司 | Chinese yam seeding and fertilizing machine |
| CN105248000B (en) * | 2015-10-29 | 2017-11-07 | 四川天本生物技术有限公司 | Automatic moving type soil subsoiling deep placement Operation Van |
| CN105940791B (en) * | 2016-06-20 | 2018-09-25 | 徐州农丰机械有限公司 | A kind of agricultural soil loosening machine drilling rod that loosens the soil |
-
2017
- 2017-03-01 CN CN201710115907.6A patent/CN108521906B/en not_active Expired - Fee Related
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| CN108521906A (en) | 2018-09-14 |
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Effective date of registration: 20210325 Address after: 102200 423, 4 / F, block a, Xinhua future city building, 175 Litang Road, Changping District, Beijing Patentee after: Li Qiannan Address before: 666100 a-2408a, Guanlan residential area, xishuangshiercheng, xindaqiao, Menghai Road, Jinghong City, Xishuangbanna Dai Autonomous Prefecture, Yunnan Province Patentee before: XISHUANGBANNA YUNPU AGRICULTURAL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20210508 Address after: 518028 1508, Zhongxin technology building, 31 Bagua Road, Yuanling street, Futian District, Shenzhen City, Guangdong Province Patentee after: Danuo (Shenzhen) Investment Co.,Ltd. Address before: 102200 423, 4 / F, block a, Xinhua future city building, 175 Litang Road, Changping District, Beijing Patentee before: Li Qiannan |
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Granted publication date: 20201211 |
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