CN111413151B - Food detection sampling device - Google Patents
Food detection sampling device Download PDFInfo
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- CN111413151B CN111413151B CN202010372125.2A CN202010372125A CN111413151B CN 111413151 B CN111413151 B CN 111413151B CN 202010372125 A CN202010372125 A CN 202010372125A CN 111413151 B CN111413151 B CN 111413151B
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- sampling
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- disc
- storehouse
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/16—Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Abstract
The invention relates to the technical field of food detection, and discloses a food detection sampling device, which comprises a cylinder body, wherein three sampling bins with different heights are sequentially arranged in the wall surface of the cylinder body from left to right, and a sampling mechanism is arranged above the cylinder body. This food detection sampling device, set up the sampling storehouse, first pull rod and sampling dish, go deep into liquid food with the barrel bottom, drag the sampling dish and drive first pull rod and rise, realized the sampling to liquid food, compare with traditional liquid food sampling device, need not manual ladling food and pack into again, work efficiency is improved, convenient sampling, through setting up three highly different sampling storehouse A, sampling storehouse B and sampling storehouse C, realized that once only can sample three different degree of depth positions in the liquid food, avoid many times of repeated sampling, through setting up second pull rod and appearance pipe, realized pouring into the liquid food of sampling into corresponding sampling dish intracavity at once and save, avoid food to cause the pollution.
Description
Technical Field
The invention relates to the technical field of food detection, in particular to a food detection sampling device.
Background
The food detection takes a product as a main line, and physical and chemical index detection as a teaching item, and comprises food sensory detection, milk and dairy product quality detection, beverage product quality detection, wine product quality detection, vegetable oil quality detection and meat and egg product quality detection, wherein the food safety detection is an important basis for guaranteeing the food safety and the like. The existing common food detection sampling devices are also divided into a plurality of types due to different food types and different inspection occasions.
When carrying out the sample detection to liquid food like the hot water juice, perhaps the water that contains the additive etc. time measuring, prior art's sampling device often needs the manual certain weight of scooping up liquid food, it packs into the sampling bottle to say food after the scooping again, seal up the sampling bottle again at last, and when sampling to same liquid food, need carry out the sampling of the different degree of depth to same liquid food, current technique not only the operating procedure is loaded down with trivial details, transport the food of sampling many times moreover, the pollution degree to food has been increased. Therefore, in order to solve the above problems, it is necessary to provide a food detection sampling device.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the food detection sampling device, which is free from manually scooping and then loading food, improves the working efficiency, is convenient to sample, can sample three positions with different depths in the liquid food at one time, improves the sampling efficiency, avoids repeated sampling for many times, injects the sampled liquid food into the corresponding sampling disc cavity for storage at once, avoids the direct contact between the sampled food and air, causes pollution to the sampling, is more convenient for a user to use, and the like, and solves the problems that the traditional sampling device has simple result, is complex to operate, and can store the liquid food by manually scooping the liquid food sample and injecting the liquid food sample into the device again after scooping.
(II) technical scheme
In order to realize the purpose that the food does not need to be scooped manually and then is filled, the working efficiency is improved, the sampling is convenient, three positions with different depths in the liquid food can be sampled at one time, the sampling efficiency is improved, repeated sampling for many times is avoided, the sampled liquid food is injected into the corresponding sampling disc cavity for storage at once, the sampled food is prevented from being in direct contact with air, the sampling is prevented from causing pollution, and the use of a user is more convenient, the invention provides the following technical scheme: a food detection sampling device comprises a cylinder body, three sampling bins with different heights are sequentially arranged in the wall surface of the cylinder body from left to right, sample inlets are arranged at the bottoms of the three sampling bins, rubber stoppers are clamped on the three sample inlets, a sampling mechanism is arranged above the cylinder body and consists of a sampling disc, a piston, a first pull rod and a second pull rod, the sampling disc is a hollow cylinder, three partition plates are fixedly arranged in the cavity of the sampling disc and are uniformly distributed, three sample outlet pipes are fixedly arranged on the outer wall of the cylinder of the sampling disc and are respectively communicated with the cavity among the three partition plates in the cavity of the sampling disc, valves are arranged on the three sample outlet pipes, pull rings are movably arranged on the wall surface of the cylinder of the sampling disc through two rotating rods, the two rotating rods are cylinder rods and are movably arranged in the wall surface of the cylinder of the sampling disc through bearings, the pull rings are provided with finger grooves which are mutually clamped with fingers, the pull rings are crescent, flow isolating plates are fixedly arranged among three clapboards, the number of pistons, first pull rods and second pull rods is three, the three first pull rods are fixedly arranged at the bottom of the sampling disc, the lengths of the three first pull rods are mutually matched with the heights of three sampling bins, the three pistons are respectively fixedly arranged at the bottoms of the three first pull rods and are respectively positioned in corresponding sampling bin cavities, the three second pull rods are respectively movably arranged in corresponding cylindrical wall surfaces of the three first pull rods, the bottoms of the three second pull rods are respectively fixedly provided with sealing plugs and are respectively positioned at the bottoms of the three corresponding pistons, the three second pull rods respectively penetrate through the bottom and the top wall surfaces of the sampling disc through sleeving two sealing rings, the tops of the three second pull rods are respectively arranged on the wall surfaces of the sampling disc, and the top ends of the three second pull rods are respectively fixedly provided with round limiting pieces, the spacing groove with the mutual block of three spacing piece is seted up at sampling dish top, and the top of three spacing piece all has the ring through two dwang movable mounting, and the sampling storehouse comprises sampling storehouse A, sampling storehouse B and sampling storehouse C.
Preferably, the three sample outlet pipes are provided with valves.
Preferably, three of the baffles are uniformly distributed in the sampling disc cavity.
Preferably, the pull ring is provided with a finger groove which is mutually clamped with fingers.
Preferably, the lengths of the three first pull rods are matched with the heights of the three sampling bins.
Preferably, the height of the sampling bin A is half of the height of the cylinder body, the height of the sampling bin B is the same as the height of the cylinder body, and the height of the sampling bin C is two thirds of the height of the cylinder body.
(III) advantageous effects
Compared with the prior art, the invention provides a food detection sampling device, which has the following beneficial effects:
1. this food detects sampling device sets up barrel, sampling storehouse, first pull rod and sampling dish, and the barrel bottom is deepened in liquid food, drags the sampling dish and drives first pull rod and rise, has realized the sampling to liquid food, compares with traditional liquid food sampling device, need not manually to ladle out food and pack into again, has improved work efficiency, the convenient sampling.
2. This food detects sampling device through setting up three different high sampling storehouse A, sampling storehouse B and sampling storehouse C, has realized once only can sample three different degree of depth positions in the liquid food, has improved sampling efficiency, avoids repetitious sampling many times.
3. This food detects sampling device through setting up sampling dish, second pull rod, play appearance pipe and sealing plug, stimulates three second pull rod, has realized injecting the liquid food of sampling into the sampling dish intracavity that corresponds at once and has saved, avoids the food and the air direct contact of sampling, causes the problem of pollution to the sampling.
4. This food detection sampling device, through setting up pull ring, finger groove and ring, when dragging the sampling dish, the finger is held at the finger inslot, has realized conveniently pulling the sampling dish, and during the pulling second pull rod, the finger inserts and indicates the intra-annular again, realizes conveniently pulling the second pull rod, and is more laborsaving and convenient.
5. This food detects sampling device, through the filter screen, when extracting liquid food, played and prevented that sediment or filth among the liquid food from inhaling the sampling storehouse intracavity.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention;
FIG. 2 is a sectional view of the main body of the present invention;
FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of the invention at B in FIG. 2.
In the figure: the sampling device comprises a barrel body 1, a sampling bin 2, a sampling bin 201A, a sampling bin 202B, a sampling bin 203C, a sampling port 3, a rubber plug 4, a sampling mechanism 5, a sampling disc 501, a piston 502, a first pull rod 503, a second pull rod 504, a partition plate 6, a sample outlet pipe 7, a sealing plug 8, a flow partition plate 9, a pull ring 10, a finger groove 11, a limiting piece 12, a limiting groove 13, a ring 14 and a filter screen 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a food detection sampling device comprises a cylinder body 1, three sampling bins 2 with different heights are sequentially arranged in the wall surface of the cylinder body 1 from left to right, sample inlets 3 are arranged at the bottoms of the three sampling bins 2, rubber plugs 4 are clamped on the three sample inlets 3, a sampling mechanism 5 is arranged above the cylinder body 1, the sampling mechanism 5 consists of a sampling disc 501, a piston 502, a first pull rod 503 and a second pull rod 504, the sampling disc 501 is a hollow cylinder, three partition plates 6 are fixedly arranged in the cavity of the sampling disc 501, the three partition plates 6 are uniformly distributed, three sample outlet pipes 7 are fixedly arranged on the outer wall of the cylinder of the sampling disc 501, the three sample outlet pipes 7 are respectively communicated with the cavity between the three partition plates 6 in the cavity of the sampling disc 501, valves are arranged on the three sample outlet pipes 7, pull rings 10 are movably arranged on the wall surface of the cylinder of the sampling disc 501 through two rotating rods, the two rotating rods are cylinder rods, and the two rotating rods are movably arranged in the wall surface of the cylinder of the sampling disc 501 through bearings, the pull ring 10 is provided with finger grooves 11 which are mutually clamped with fingers, the pull ring 10 is crescent-shaped, the specific shape of the pull ring 10 is shown in figure 1, flow separation plates 9 are fixedly arranged among three partition plates 6, the number of the pistons 502, the number of the first pull rods 503 and the number of the second pull rods 504 are three, the three first pull rods 503 are fixedly arranged at the bottom of the sampling disc 501, the lengths of the three first pull rods 503 are matched with the heights of the three sampling chambers 2, the three pistons 502 are respectively fixedly arranged at the bottoms of the three first pull rods 503 and are respectively positioned in the cavities of the corresponding sampling chambers 2, the three second pull rods 504 are respectively movably arranged in the cylindrical walls of the corresponding three first pull rods 503, the bottoms of the three second pull rods 504 are respectively fixedly provided with sealing plugs 8, the three sealing plugs 8 are respectively positioned at the bottoms of the three corresponding pistons 502, the three second pull rods 504 respectively penetrate through the bottom and the top wall of the sampling disc 501 by sleeving two sealing rings, the top of three second pull rod 504 all sets up on sampling disc 501's wall, it is three the equal fixed mounting in top of second pull rod 504 has circular shape spacing piece 12, sampling disc 501 top is seted up with the spacing groove 13 of the mutual block of three spacing piece 12, the top of three spacing piece 12 all has ring 14 through two dwang movable mounting, sampling storehouse 2 is by sampling storehouse A201, sampling storehouse B202 and sampling storehouse C203 are constituteed, sampling storehouse A201 highly is half of barrel 1 height, sampling storehouse B202 highly is the same with barrel 1 height, sampling storehouse C203 highly is two-thirds of barrel 1 height, under the normal condition, the spacing piece 12 at three second pull rod 504 top all is located the spacing groove 13 intracavity that corresponds, the sealing plug 8 bottom three second pull rod 504 all is located the bottom of rubber stopper 4.
When in use, the bottom of the cylinder body 1 is deeply inserted into liquid food by arranging the cylinder body 1, the sampling bin 2, the first pull rod 503 and the sampling disc 501, the sampling disc 501 is dragged to drive the first pull rod 503 to ascend, so that the sampling of the liquid food is realized, compared with the traditional liquid food sampling device, the sampling device does not need to manually scoop the food and then load the food, the working efficiency is improved, the sampling is convenient, the sampling device can sample three different depth positions in the liquid food at one time by arranging the sampling bin A201, the sampling bin B202 and the sampling bin C203 which are different in height, the sampling efficiency is improved, repeated sampling is avoided, after the liquid food enters the sampling bin A201, the sampling bin B202 and the sampling bin C203, the top ends of the three second pull rods 504 are pulled, so that the corresponding sealing plugs 8 are dragged by the three second pull rods 504, liquid food entering the cavity of the sampling bin 2 is extracted into the corresponding cavity of the first pull rod 503, the liquid food flows into the cavity of the sampling disc 501 through the flow partition plate 9, and the sampled food is stored, therefore, by arranging the sampling disc 501, the second pull rod 504, the sample outlet pipe 7 and the sealing plug 8 and pulling the three second pull rods 504, the sampled liquid food is immediately injected into the corresponding cavity of the sampling disc 501 for storage, the problem that the sampled food is directly contacted with air and pollutes the sampling is avoided, when the sampling disc 501 is pulled, fingers are held in the finger grooves 11 by arranging the pull rings 10, the finger grooves 11 and the finger rings 14, the sampling disc 501 is conveniently pulled, when the second pull rod 504 is pulled, the fingers are inserted into the finger rings 14, the second pull rod 504 is conveniently pulled, labor is saved, and convenience is improved, by arranging the filter screen 15, when the liquid food is extracted, prevents sediment or dirt in the liquid food from being sucked into the cavity of the sampling bin 2. When the barrel body 1 is cleaned, the sampling disc 501 and the three first pull rods 503 are pulled, the three second pull rods 504 are pulled to the topmost end, water is injected into the cavity of the sampling disc 501 through the three sample inlet pipes, after the water is injected into the water, the three second pull rods 504 are pressed, the water in the cavity of the sampling disc 501 is injected into the cavity of the sampling bin 2 through the three first pull rods 503, then the three first pull rods 503 are pressed, the water is pressed out from the cavities of the sampling bin A201, the sampling bin B202 and the sampling bin C203 respectively, the cleaning of the sampling bin A201, the sampling bin B202 and the sampling bin C203 is realized, the result is simple, the cleaning and the sampling of liquid food are convenient, and compared with the traditional food sampling device, the sampling is convenient, and the sampling barrel body is convenient to transport.
The working steps are as follows:
the first step is as follows: the finger is held in the finger groove 11, and the sampling disc 501 is dragged to drive the first pull rod 503 to ascend, so that the liquid food is sampled, the liquid food enters the cavities of the sampling bin A201, the sampling bin B202 and the sampling bin C203 through the sample inlet 3 respectively, and three different depth positions in the liquid food can be sampled at one time.
The second step is that: after the liquid food enters the sampling bin A201, the sampling bin B202 and the sampling bin C203, fingers are inserted into the finger ring 14, and the second pull rod 504 is pulled conveniently.
The third step: the corresponding sealing plugs 8 are dragged through the three second pull rods 504, the liquid food entering the cavity of the sampling bin 2 is extracted into the corresponding cavities of the first pull rods 503, and the liquid food flows into the cavities of the sampling trays 501 through the flow separation plates 9, so that the sampled food is stored, and the sampled food is prevented from directly contacting with air.
The fourth step: after the liquid food enters the corresponding sampling disc 501 cavity, the three second pull rods 504 and the third first pull rod 503 are pressed, redundant liquid food is extruded out, valves of the three sample outlet pipes 7 are closed, and meanwhile, the rubber plugs 4 are inserted into the corresponding sample inlet 3 cavities.
The fifth step: when the barrel body 1 is cleaned, the sampling disc 501 and the three first pull rods 503 are pulled, the three second pull rods 504 are pulled to the topmost end, a water body is injected into the cavity of the sampling disc 501 through the three sample inlet pipes, after the water body is injected, the three second pull rods 504 are pressed, the water body in the cavity of the sampling disc 501 is injected into the cavity of the sampling bin 2 through the three first pull rods 503, the three first pull rods 503 are pressed again, the water body is pressed out from the cavities of the sampling bin A201, the sampling bin B202 and the sampling bin C203 respectively, and the cleaning of the sampling bin A201, the sampling bin B202 and the sampling bin C203 is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. Food detection sampling device, including barrel (1), its characterized in that: the sampling device is characterized in that the cylinder body (1) is a cylinder, three sampling bins (2) with different heights are sequentially arranged in the wall surface of the cylinder body (1) from left to right, sample inlets (3) are formed in the bottom ends of the three sampling bins (2), rubber plugs (4) are clamped on the three sample inlets (3), a sampling mechanism (5) is arranged above the cylinder body (1), the sampling mechanism (5) consists of a sampling disc (501), a piston (502), first pull rods (503) and second pull rods (504), the sampling disc (501) is a hollow cylinder, three clapboards (6) are fixedly arranged in the cavity of the sampling disc (501), the three clapboards (6) are uniformly distributed, the number of the piston (502), the first pull rods (503) and the second pull rods (504) is three, the three first pull rods (503) are fixedly arranged at the bottom of the sampling disc (501), and the lengths of the three first pull rods (503) are matched with the heights of the three sampling bins (2), the three pistons (502) are fixedly arranged at the bottoms of the three first pull rods (503) respectively and are positioned in cavities of the corresponding sampling bins (2) respectively, the three second pull rods (504) are movably arranged in the cylindrical walls of the corresponding three first pull rods (503) respectively, the bottoms of the three second pull rods (504) are fixedly provided with sealing plugs (8), the three sealing plugs (8) are positioned at the bottoms of the three corresponding pistons (502) respectively, the three second pull rods (504) penetrate through the bottom and the top wall of the sampling disc (501) respectively by sleeving two sealing rings, and the tops of the three second pull rods (504) are arranged on the wall of the sampling disc (501);
flow isolating plates (9) are fixedly arranged among the three partition plates (6);
a pull ring (10) is movably arranged on the cylindrical wall surface of the sampling disc (501) through two rotating rods, and the pull ring (10) is crescent;
the top ends of the three second pull rods (504) are fixedly provided with circular limiting pieces (12), and the top of the sampling disc (501) is provided with limiting grooves (13) which are mutually clamped with the three limiting pieces (12);
the top of the three limiting pieces (12) is movably provided with finger rings (14) through two rotating rods.
2. The food detection sampling device of claim 1, wherein: sampling storehouse (2) comprises sampling storehouse A (201), sampling storehouse B (202) and sampling storehouse C (203), and the height of sampling storehouse A (201) is the half of barrel (1) height, and the height of sampling storehouse B (202) is the same with barrel (1) height, and sampling storehouse C (203) height is two-thirds of barrel (1) height.
3. The food detection sampling device of claim 1, wherein: sampling dish (501) cylinder outer wall fixed mounting have three groups go out appearance pipe (7) and three groups go out appearance pipe (7) respectively with sampling dish (501) intracavity between three baffle (6) communicate each other.
4. The food detection sampling device of claim 1, wherein: the pull ring (10) is provided with a finger groove (11) which is mutually clamped with fingers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010372125.2A CN111413151B (en) | 2020-05-06 | 2020-05-06 | Food detection sampling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010372125.2A CN111413151B (en) | 2020-05-06 | 2020-05-06 | Food detection sampling device |
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| CN111413151A CN111413151A (en) | 2020-07-14 |
| CN111413151B true CN111413151B (en) | 2022-09-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112857900B (en) * | 2021-01-12 | 2022-05-24 | 仲恺农业工程学院 | Underwater robot liquid sampling device |
| CN116577152A (en) * | 2023-07-12 | 2023-08-11 | 自然资源部第一海洋研究所 | Unmanned aerial vehicle silt sand mud flat drills into extraction device with different degree of depth drills |
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| SU1081464A1 (en) * | 1983-01-07 | 1984-03-23 | Livshits David | Device for cleaning and cooling samples of hot explosive media gas |
| US8051727B1 (en) * | 2008-04-22 | 2011-11-08 | The United States Of America As Represented By The Secretary Of The Interior | Pore-water profiler |
| CN110455585A (en) * | 2019-08-27 | 2019-11-15 | 新乡市食品药品检验所 | A kind of food sampling verifying attachment |
| CN110553879A (en) * | 2019-09-30 | 2019-12-10 | 浙江海洋大学 | Water sampling device |
| CN110954370A (en) * | 2019-12-04 | 2020-04-03 | 杨浩毅 | Adaptable inhomogeneous liquid food detects uses sampler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398391B (en) * | 2018-04-24 | 2020-05-08 | 水利部交通运输部国家能源局南京水利科学研究院 | High dam deep reservoir layering water sample and sediment column sample integrated artificial intelligence sampling device |
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2020
- 2020-05-06 CN CN202010372125.2A patent/CN111413151B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1081464A1 (en) * | 1983-01-07 | 1984-03-23 | Livshits David | Device for cleaning and cooling samples of hot explosive media gas |
| US8051727B1 (en) * | 2008-04-22 | 2011-11-08 | The United States Of America As Represented By The Secretary Of The Interior | Pore-water profiler |
| CN110455585A (en) * | 2019-08-27 | 2019-11-15 | 新乡市食品药品检验所 | A kind of food sampling verifying attachment |
| CN110553879A (en) * | 2019-09-30 | 2019-12-10 | 浙江海洋大学 | Water sampling device |
| CN110954370A (en) * | 2019-12-04 | 2020-04-03 | 杨浩毅 | Adaptable inhomogeneous liquid food detects uses sampler |
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Address after: 225600 No. 66, Dongtinghu Road, Gaoyou Economic Development Zone, Gaoyou City, Yangzhou City, Jiangsu Province Applicant after: Zhongnong Kangzheng Technology Service Co.,Ltd. Address before: 225600 Dongting Lake Road, Gaoyou Economic Development Zone, Yangzhou, Jiangsu 66 Applicant before: JIANGSU KANGZHENG BIOTECHNOLOGY CO.,LTD. |
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Effective date of registration: 20221031 Address after: No. 288, Chuangyuan East Road, Agricultural Products Processing Park, Taixing City, Taizhou City, Jiangsu Province, 225400 Patentee after: Zhongnong Kangzheng Technical Service (Taizhou) Co.,Ltd. Address before: 225600 No. 66, Dongtinghu Road, Gaoyou Economic Development Zone, Gaoyou City, Yangzhou City, Jiangsu Province Patentee before: Zhongnong Kangzheng Technology Service Co.,Ltd. |