CN114778207B - Food detection sampling device - Google Patents
Food detection sampling device Download PDFInfo
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- CN114778207B CN114778207B CN202210679462.5A CN202210679462A CN114778207B CN 114778207 B CN114778207 B CN 114778207B CN 202210679462 A CN202210679462 A CN 202210679462A CN 114778207 B CN114778207 B CN 114778207B
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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
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
- G01N2001/1427—Positive displacement, piston, peristaltic
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a food detection sampling device, which relates to the technical field of food detection and comprises a supporting plate, wherein a supporting frame is fixed on the supporting plate, an opening taper pipe is fixed at the bottom of a lifting cover, a sealing sleeve is hermetically and slidably arranged on the opening taper pipe, a liquid suction assembly is connected between a piston cylinder and a suction pipe, a pair of sliding guide assemblies is arranged on the side wall of the lifting cover, and each sliding guide assembly is connected with a clamping plate; according to the invention, the lifting cover is driven to move downwards by the lifting sleeve, so that the opening conical tube can open the opening of the tinplate can, after the hole is formed, the suction tube is inserted into the tinplate can under the action of the elastic guide assembly, and when the lifting sleeve moves upwards, the piston head is driven to slide by the transmission rod, so that the suction tube can instantly suck the soup in the tinplate can, the integrated operation of opening the tinplate can, inserting the pipe and taking the soup is realized, and the detection and sampling efficiency is greatly facilitated.
Description
Technical Field
The invention relates to the technical field of food detection, in particular to a food detection sampling device.
Background
Food detection is based on some basic theories of physics, chemistry and biology and various technologies, and according to established technical standards, such as international and national food sanitation standards, the quality of food raw materials, auxiliary materials, semi-finished products, finished products and byproducts is checked to ensure that the product quality is qualified. The food inspection contents comprise sensory detection of food, detection of nutrient components, additives and harmful substances in the food and the like.
Chinese patent No. CN 212483019U discloses a can soup sampling device, which comprises a horizontal support plate, a support frame mounted on the support plate, and a sampling tube telescopically arranged on the support frame, wherein the sampling tube is arranged on the horizontal part of the support frame; the sampling tube comprises a sleeve which is connected with the support frame in a sliding way and penetrates through the support frame up and down, a sampling head which is fixedly connected with the lower end of the sleeve and a connecting hose which is fixedly connected with the upper end of the sleeve; although the device can sample the can, to tin plate tin can head food, can not realize opening, the continuation of sampling action goes on, and hot water sampling operation in the tin plate can is very inconvenient, to the technical defect that above-mentioned prior art exists, provides a food detection sampling device now, solves above-mentioned problem.
Disclosure of Invention
The invention aims to provide a food detection sampling device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a food detection sampling device, includes the backup pad, is fixed with the support frame in the backup pad, be fixed with the spacing seat that is used for supporting tin plate can in the backup pad, vertical slidable mounting has a lifting sleeve on the support frame, the lift lid is installed to lifting sleeve bottom, lifting cover bottom is fixed with the opening taper pipe, sealed slidable mounting has seal tube on the opening taper pipe, seal tube and lift lid elastic connection, install the suction tube in the opening taper pipe, install the elastic guide subassembly between suction tube and the lifting sleeve, be fixed with a piston section of thick bamboo in the backup pad, a piston section of thick bamboo with be connected with the imbibition subassembly between the suction tube, sealed end cap is installed to the piston section of thick bamboo bottom, a pair of slide guide subassembly is installed to the lifting cover lateral wall, every all be connected with the grip block on the slide guide subassembly.
As a modified scheme of the invention: the lifting sleeve is fixed with the card strip on, card strip and the vertical sliding connection of support frame, the lifting sleeve lateral wall is fixed with the rack of vertical setting, rotate on the support frame and install the gear of being connected with rack toothing, install on the support frame and be used for the rotatory power component of drive gear.
As a modified scheme of the invention: the power assembly comprises a motor arranged on the support frame, an output shaft of the motor is coaxially connected with a worm, and a worm wheel coaxially fixed with the gear is connected to the worm in a meshed mode.
As a modified scheme of the invention: the elastic guide assembly comprises a limiting frame fixed on the suction pipe, a guide frame is fixed on the inner wall of the lifting sleeve, the suction pipe is connected with the guide frame in a vertical sliding mode, and a spring ring is connected between the guide frame and the limiting frame.
As a modified scheme of the invention: the sealing sleeve is fixedly provided with a guide cylinder, a guide rod is vertically and slidably mounted on the guide cylinder, one end of the guide rod is fixedly connected with the lifting cover, and a vertical spring is connected between the other end of the guide rod and the guide cylinder.
As a modified scheme of the invention: the imbibition subassembly includes the piston head with piston cylinder inner wall sealing sliding connection, the piston head with it has the transfer line to articulate between the lift sleeve, install the bellows on the suction tube, install the check valve with the bellows intercommunication on the piston cylinder.
As a modified scheme of the invention: the sliding guide assembly comprises a sliding sleeve plate which is slidably mounted on the lifting cover, the clamping plate is vertically fixed at the bottom of the sliding sleeve plate, a sliding plate is slidably mounted on the sliding sleeve plate, a pushing spring is connected between the sliding plate and the sliding sleeve plate, a movable wedge block is fixed at the bottom of the sliding plate, and a fixed wedge block vertically corresponding to the movable wedge block is mounted on the supporting plate.
As a modified scheme of the invention: a plurality of supporting platforms are arranged in the limiting seat, each supporting platform is of an annular structure, and the inner diameter of each supporting platform is gradually reduced from top to bottom.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the lifting cover is driven to move downwards through the lifting sleeve, so that the opening treatment of the tinplate can head by the opening taper pipe is realized, after the hole is formed, the suction pipe is inserted into the tinplate can under the action of the elastic guide assembly, and when the lifting sleeve moves upwards, the piston head is driven to slide through the transmission rod, so that the suction pipe can realize instant suction of soup in the tinplate can, the integrated operation of the tinplate can head opening, pipe inserting and liquid taking actions is realized, and the detection and sampling efficiency is greatly facilitated.
In the process of downwards moving the lifting cover, the movable wedge block and the fixed wedge block are pushed in a sliding mode, so that the sliding plate drives the sliding sleeve plate to move towards the tinplate can, the clamping plate transversely clamps the tinplate can, the position stability of the tinplate can in the soup sampling process is effectively guaranteed, and the stable operation of the sampling process is guaranteed.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the sliding guide assembly of the present invention;
FIG. 3 is a partial schematic view of the present invention;
FIG. 4 is a schematic illustration of the partial explosion structure of FIG. 3 in accordance with the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 4 according to the present invention;
FIG. 6 is a schematic illustration of the partial explosion structure of FIG. 4 in accordance with the present invention;
FIG. 7 is a schematic view of the connection of the elevator shaft, rack, drive rod and piston head of the present invention;
FIG. 8 is a schematic view of the connection of the support plate, the limiting seat and the fixed wedge of the present invention.
In the figure: 1-support plate, 2-lifting cover, 3-piston cylinder, 4-one-way valve, 5-corrugated pipe, 6-transmission rod, 7-lifting sleeve, 8-suction pipe, 9-motor, 10-support frame, 11-sliding plate, 12-movable wedge block, 13-fixed wedge block, 14-clamping plate, 15-limit seat, 16-tinplate can, 17-sliding sleeve plate, 18-pushing spring, 19-clamping strip, 20-guide rod, 21-opening conical tube, 22-sealing sleeve, 23-guide cylinder, 24-guide frame, 25-spring ring, 26-limit frame, 27-vertical spring, 28-rack, 29-gear, 30-piston head, 31-worm wheel, 32-worm, 33-support table, 34-sealing plug.
Detailed Description
The technical scheme of the patent is further described in detail by combining the following specific embodiments:
example 1
Referring to fig. 1-8, a food detection sampling device includes a supporting plate 1, a supporting frame 10 is fixed on the supporting plate 1, a limiting seat 15 for supporting tinplate cans is fixed on the supporting plate 1, a lifting sleeve 7 is vertically slidably mounted on the supporting frame 10, a lifting cover 2 is mounted at the bottom of the lifting sleeve 7, an opening taper pipe 21 is fixed at the bottom of the lifting cover 2, a sealing sleeve 22 is slidably mounted on the opening taper pipe 21 in a sealing manner, the sealing sleeve 22 is elastically connected with the lifting cover 2, a suction pipe 8 is mounted in the opening taper pipe 21, an elastic guide assembly is mounted between the suction pipe 8 and the lifting sleeve 7, a piston cylinder 3 is fixed on the supporting plate 1, a liquid suction assembly is connected between the piston cylinder 3 and the suction pipe 8, a sealing plug 34 is mounted at the bottom of the piston cylinder 3, a pair of sliding guide assemblies is mounted on the side wall of the lifting cover 2, and a clamping plate 14 is connected on each sliding guide assembly.
Wherein, elasticity direction subassembly is including fixing spacing 26 on the suction tube 8, and lifting sleeve 7 inner wall is fixed with leading truck 24, and suction tube 8 and the vertical sliding connection of leading truck 24 are connected with spring ring 25 between leading truck 24 and the spacing 26.
When the soup inside the tinplate can 16 is sampled, the tinplate can 16 is placed on the limiting seat 15 upside down, the lifting cover 2 is driven by the lifting sleeve 7 to move downwards, the opening taper pipe 21 moves downwards and holes are formed in the tinplate can 16, the lower end of the suction pipe 8 is lower than the lower end of the opening taper pipe 21 in the initial state, in the process, the suction pipe 8 is firstly abutted to the tinplate can 16, the suction pipe 8 vertically slides upwards, the spring ring 25 is elastically compressed, when the tinplate can 16 is punched, the spring ring 25 is elastically reset and abuts to the limiting frame 26, at the moment, the limiting frame 26 drives the suction pipe 8 to be inserted into the tinplate can 16 along the hole in the tinplate can 16, the synchronous punching and inserting of the tinplate can 16 are realized, and the operation of sampling the soup inside the tinplate can 16 is greatly facilitated.
Furthermore, a clamping strip 19 is fixed on the lifting sleeve 7, the clamping strip 19 is vertically and slidably connected with the support frame 10, a vertically arranged rack 28 is fixed on the side wall of the lifting sleeve 7, a gear 29 meshed and connected with the rack 28 is rotatably mounted on the support frame 10, and a power assembly for driving the gear 29 to rotate is mounted on the support frame 10. The power assembly comprises a motor 9 arranged on the support frame 10, an output shaft of the motor 9 is coaxially connected with a worm 32, and the worm 32 is engaged with a worm wheel 31 coaxially fixed with the gear 29.
Through the arrangement, the motor 9 can drive the worm 32 to rotate, the worm 32 drives the worm wheel 31 to rotate, the worm wheel 31 drives the gear 29 to rotate at the moment, the gear 29 is meshed with the rack 28, and the lifting sleeve 7 moves downwards and performs hole opening and pipe inserting on the tinplate can 16.
The liquid suction assembly comprises a piston head 30 connected with the inner wall of the piston cylinder 3 in a sealing and sliding mode, a transmission rod 6 is hinged between the piston head 30 and the lifting sleeve 7, a corrugated pipe 5 is installed on the suction pipe 8, and a check valve 4 communicated with the corrugated pipe 5 is installed on the piston cylinder 3.
As shown in fig. 1 and 7, when the lifting sleeve 7 moves downwards, the lifting sleeve 7 drives the piston head 30 to move leftwards relative to the piston cylinder 3 through the transmission rod 6, in the process, the opening of the tinplate can 16 is completed, the suction pipe 8 extends into the tinplate can 16, the output shaft of the motor 9 is controlled to rotate reversely, so that the lifting sleeve 7 moves upwards, at the moment, the piston head 30 moves rightwards relative to the piston cylinder 3, in the process, the suction pipe 8 is kept in the tinplate can 16, soup in the tinplate can 16 enters the piston cylinder 3 along the suction pipe 8, the corrugated pipe 5 and the one-way valve 4, the sampling operation is completed, and the process of moving upwards after the lifting sleeve 7 moves vertically downwards is that the integrated operation of opening, inserting and liquid taking of the tinplate can 16 is realized, and the sampling process is convenient and efficient.
Example 2
Referring to fig. 1-8, on the basis of embodiment 1, in addition, a guide cylinder 23 is fixed on the sealing sleeve 22, a guide rod 20 is vertically slidably installed on the guide cylinder 23, one end of the guide rod 20 is fixedly connected with the lifting cover 2, and a vertical spring 27 is connected between the other end of the guide rod 20 and the guide cylinder 23.
Under initial condition, sealing sleeve 22 lower extreme is less than opening taper pipe 21 lower extreme, before opening taper pipe 21 trompil to tinplate can 16, sealing sleeve 22 lower extreme and tinplate can 16 butt, at the in-process that opening taper pipe 21 moved down gradually, guide bar 20 moves down, vertical spring 27 elastic compression for guide cylinder 23 drives the laminating of sealing sleeve 22 lower extreme on tinplate can 16, guarantee the effectual sealing effect of 16 trompil processes of tinplate can, play the effect that prevents hot water and splash.
In addition, the sliding guide assembly of the device comprises a sliding sleeve plate 17 which is slidably mounted on the lifting cover 2, a clamping plate 14 is vertically fixed at the bottom of the sliding sleeve plate 17, a sliding plate 11 is slidably mounted on the sliding sleeve plate 17, a pushing spring 18 is connected between the sliding plate 11 and the sliding sleeve plate 17, a movable wedge block 12 is fixed at the bottom of the sliding plate 11, and a fixed wedge block 13 vertically corresponding to the movable wedge block 12 is mounted on the support plate 1.
When the lifting cover 2 moves downwards, the movable wedge block 12 moves downwards, the wedge surface of the movable wedge block 12 is abutted against the wedge surface of the fixed wedge block 13, the movable wedge block 12 drives the sliding plate 11 to slide towards the tinplate can 16, the sliding plate 11 drives the sliding sleeve plate 17 to slide through the abutting spring 18, the abutting spring 18 is elastically compressed to generate abutting force, the sliding sleeve plate 17 drives the clamping plate 14 to stably clamp the tinplate can 16, the stability in the opening process of the tinplate can 16 is effectively ensured, the device does not need to clamp the tinplate can 16 manually, the automatic clamping and limiting effect on the tinplate can 16 is realized in the opening and inserting processes of the tinplate can 16, and the operation process is simple, convenient and stable.
In addition, be provided with a plurality of brace tables 33 in spacing seat 15, brace table 33 is the loop configuration, and the internal diameter of brace table 33 reduces gradually from top to bottom, through setting up the brace table 33 of equidimension internal diameter not, can stably place the tinplate can 16 of different diameters, has further made things convenient for placing of tinplate can 16.
In summary, in the invention, the lifting sleeve 7 drives the lifting cover 2 to move downwards, so that the opening conical tube 21 performs opening processing on the tinplate can 16, after the hole is formed, the suction tube 8 is inserted into the tinplate can 16 under the action of the elastic guide assembly, and when the lifting sleeve 7 moves upwards, the piston head 30 is driven to slide through the transmission rod 6, so that the suction tube 8 can instantly suck the soup in the tinplate can 16, the integrated operation of opening the tinplate can 16, inserting the tinplate and taking the soup is realized, and the detection and sampling efficiency is greatly facilitated. In the process of moving the lifting cover 2 downwards, the movable wedge block 12 and the fixed wedge block 13 are pushed in a sliding mode, so that the sliding plate 11 drives the sliding sleeve plate 17 to move towards the tinplate can 16, the clamping plate 14 transversely clamps the tinplate can 16, the stable position of the tinplate can 16 in the soup sampling process is effectively guaranteed, and the stable sampling process is guaranteed.
It should be noted that, although the present specification describes embodiments, each embodiment does not include only a single technical solution, and such description of the specification is only for clarity, and those skilled in the art should take the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art, and the above embodiments only express the preferred embodiments of the technical solutions, and the description thereof is more specific and detailed, but not construed as limiting the scope of the claims of the technical solutions. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these changes and substitutions belong to the protection scope of the present invention. The protection scope of this technical solution patent should be subject to the appended claims.
Claims (6)
1. The utility model provides a food detection sampling device, includes backup pad (1), is fixed with support frame (10) on backup pad (1), be fixed with spacing seat (15) that are used for supporting tin plate can (16) on backup pad (1), its characterized in that, vertical slidable mounting has lift sleeve (7) on support frame (10), lift lid (2) is installed to lift sleeve (7) bottom, lift lid (2) bottom is fixed with opening taper pipe (21), sealed slidable mounting has seal sleeve (22) on opening taper pipe (21), seal sleeve (22) and lift lid (2) elastic connection, install suction tube (8) in opening taper pipe (21), install the elastic guide subassembly between suction tube (8) and lift sleeve (7), be fixed with piston cylinder (3) on backup pad (1), piston cylinder (3) with be connected with the imbibition subassembly between suction tube (8), the bottom of the piston cylinder (3) is provided with a sealing plug (34), the side wall of the lifting cover (2) is provided with a pair of sliding guide components, each sliding guide component is connected with a clamping plate (14), the elastic guide component comprises a limiting frame (26) fixed on the suction pipe (8), a guide frame (24) is fixed on the inner wall of the lifting sleeve (7), the suction pipe (8) is vertically connected with the guide frame (24) in a sliding way, a spring ring (25) is connected between the guide frame (24) and the limiting frame (26), a guide cylinder (23) is fixed on the sealing sleeve (22), a guide rod (20) is vertically and slidably arranged on the guide cylinder (23), one end of the guide rod (20) is fixedly connected with the lifting cover (2), a vertical spring (27) is connected between the other end of the guide rod (20) and the guide cylinder (23).
2. The food detection and sampling device according to claim 1, characterized in that a clamping strip (19) is fixed on the lifting sleeve (7), the clamping strip (19) is vertically and slidably connected with the support frame (10), a vertically arranged rack (28) is fixed on the side wall of the lifting sleeve (7), a gear (29) meshed and connected with the rack (28) is rotatably mounted on the support frame (10), and a power assembly for driving the gear (29) to rotate is mounted on the support frame (10).
3. The food detection and sampling device according to claim 2, wherein the power assembly comprises a motor (9) mounted on the support frame (10), an output shaft of the motor (9) is coaxially connected with a worm (32), and a worm wheel (31) coaxially fixed with the gear (29) is engaged and connected on the worm (32).
4. The food detection and sampling device according to claim 1, wherein the liquid suction assembly comprises a piston head (30) in sealed sliding connection with the inner wall of the piston cylinder (3), a transmission rod (6) is hinged between the piston head (30) and the lifting sleeve (7), a corrugated pipe (5) is installed on the suction pipe (8), and a one-way valve (4) communicated with the corrugated pipe (5) is installed on the piston cylinder (3).
5. The food detection and sampling device according to claim 1, wherein the sliding guide assembly comprises a sliding sleeve plate (17) slidably mounted on the lifting cover (2), the clamping plate (14) is vertically fixed at the bottom of the sliding sleeve plate (17), a sliding plate (11) is slidably mounted on the sliding sleeve plate (17), a pushing spring (18) is connected between the sliding plate (11) and the sliding sleeve plate (17), a movable wedge block (12) is fixed at the bottom of the sliding plate (11), and a fixed wedge block (13) vertically corresponding to the movable wedge block (12) is mounted on the support plate (1).
6. The food detection and sampling device according to claim 1, wherein a plurality of supporting platforms (33) are arranged in the limiting seat (15), the supporting platforms (33) are of an annular structure, and the inner diameter of each supporting platform (33) is gradually reduced from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210679462.5A CN114778207B (en) | 2022-06-16 | 2022-06-16 | Food detection sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210679462.5A CN114778207B (en) | 2022-06-16 | 2022-06-16 | Food detection sampling device |
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| CN114778207A CN114778207A (en) | 2022-07-22 |
| CN114778207B true CN114778207B (en) | 2022-08-23 |
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| CN202210679462.5A Active CN114778207B (en) | 2022-06-16 | 2022-06-16 | Food detection sampling device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116478801B (en) * | 2023-06-21 | 2023-08-22 | 诸城市欣大生物科技有限公司 | Sample extraction device for lactobacillus fermentation |
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| EP0576762A1 (en) * | 1991-05-03 | 1994-01-05 | S.P.C. France | Device for delivering a predetermined quantity of liquid |
| CN101734589A (en) * | 2010-02-09 | 2010-06-16 | 胡海明 | Electric can opener |
| WO2016087782A1 (en) * | 2014-12-05 | 2016-06-09 | Commissariat à l'énergie atomique et aux énergies alternatives | Method and device for withdrawing a sample from a liquid |
| CN110065918A (en) * | 2019-05-05 | 2019-07-30 | 王大旗 | A kind of can plastic cover pressing device with automatic detection function |
| CN111150031A (en) * | 2020-01-17 | 2020-05-15 | 贵州山里宝农牧实业有限公司 | Chicken heart soup can and preparation method thereof |
| CN212432574U (en) * | 2020-05-06 | 2021-01-29 | 海通食品(宁海)有限公司 | Fruit sampler for processing can with few damaged fruits |
| CN112903355A (en) * | 2021-01-21 | 2021-06-04 | 王友玲 | Liquid food detects with sampler that can seal storage |
| CN213632814U (en) * | 2020-11-06 | 2021-07-06 | 重庆能院食品检测有限公司 | Liquid food detects with sampling device who is convenient for adjust sampling depth |
| CN114295412A (en) * | 2021-12-28 | 2022-04-08 | 黄蔚 | Food nutrition safety inspection device |
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2022
- 2022-06-16 CN CN202210679462.5A patent/CN114778207B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0576762A1 (en) * | 1991-05-03 | 1994-01-05 | S.P.C. France | Device for delivering a predetermined quantity of liquid |
| CN101734589A (en) * | 2010-02-09 | 2010-06-16 | 胡海明 | Electric can opener |
| WO2016087782A1 (en) * | 2014-12-05 | 2016-06-09 | Commissariat à l'énergie atomique et aux énergies alternatives | Method and device for withdrawing a sample from a liquid |
| CN110065918A (en) * | 2019-05-05 | 2019-07-30 | 王大旗 | A kind of can plastic cover pressing device with automatic detection function |
| CN111150031A (en) * | 2020-01-17 | 2020-05-15 | 贵州山里宝农牧实业有限公司 | Chicken heart soup can and preparation method thereof |
| CN212432574U (en) * | 2020-05-06 | 2021-01-29 | 海通食品(宁海)有限公司 | Fruit sampler for processing can with few damaged fruits |
| CN213632814U (en) * | 2020-11-06 | 2021-07-06 | 重庆能院食品检测有限公司 | Liquid food detects with sampling device who is convenient for adjust sampling depth |
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| CN114295412A (en) * | 2021-12-28 | 2022-04-08 | 黄蔚 | Food nutrition safety inspection device |
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