CN112857931B - Food safety inspection is with system appearance device - Google Patents
Food safety inspection is with system appearance device Download PDFInfo
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- CN112857931B CN112857931B CN202110020705.XA CN202110020705A CN112857931B CN 112857931 B CN112857931 B CN 112857931B CN 202110020705 A CN202110020705 A CN 202110020705A CN 112857931 B CN112857931 B CN 112857931B
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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
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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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
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
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Abstract
The invention discloses a sample preparation device for food safety detection, and belongs to the technical field of food safety detection. A sample preparation device for food safety detection comprises a sample preparation box, wherein the inner wall of the sample preparation box is fixedly connected with a fixed plate, the outer wall of the sample preparation box is provided with an inlet, the inlet is arranged above the fixed plate, the inner wall of the sample preparation box is also rotatably connected with a lead screw and a rotating shaft, the outer wall of the lead screw is in threaded connection with a placing plate, the placing plate is slidably connected with the outer wall of the fixed plate, the outer wall of the rotating shaft is connected with a cutting mechanism, the cutting mechanism is arranged above the placing plate, the outer wall of the fixed plate is provided with a through hole, the outer wall of the placing plate is provided with three feed openings matched with the through hole in a chiseling mode, the outer wall of the sample preparation box is connected with a supporting seat, the outer wall of the supporting seat is connected with a motor, the output end of the motor is connected with a first rotating shaft, and the outer wall of the first rotating shaft is connected with a first gear; the food safety detection device is simple in structure, reduces the manufacturing cost of the device, further reduces the food safety detection cost, and is beneficial to meeting the actual use requirement.
Description
Technical Field
The invention relates to the technical field of food safety detection, in particular to a sample preparation device for food safety detection.
Background
The food safety detection is used for detecting harmful substances in food according to national indexes, mainly detecting harmful and toxic indexes such as heavy metal, aflatoxin and the like, and an important aspect of food science and engineering is to introduce and apply chemical engineering unit operation and develop and form food engineering unit operation, so that the development of the food industry to large-scale, continuous and automatic directions is promoted.
The Chinese invention with the patent number of CN201711281768.0 in the prior art discloses a sample preparation device for food safety detection, the lower end of a push rod is rotatably connected with the upper end of a blade, the blade is slidably connected with a sliding plate, a crankshaft is rotatably connected with the upper part of a transmission belt, the lower part of the transmission belt is rotatably connected with a lead screw, the left end of the lead screw is rotatably connected with a device body, the right part of the lead screw is in threaded connection with the left end of a movable plate, the upper end of the lead screw is provided with a travel switch, the surface of the movable plate is equidistantly provided with three grooves, a partition plate is fixedly connected with the device body, and the surface of the partition plate is equidistantly provided with three through holes; still have certain defect, the structure of the device is comparatively complicated, and it needs three rubbing crusher to carry out the breakage to respective sample to prepare the sample of three different positions, leads to the device cost of manufacture high, and then improves food safety inspection cost.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a sample preparation device for food safety detection.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a food safety inspection is with system appearance device, is including making the appearance case, the inner wall fixedly connected with fixed plate of system appearance case, system appearance case outer wall is dug there is the import, the top of fixed plate is arranged in the import, system appearance incasement wall still rotates and is connected with lead screw and axis of rotation, lead screw outer wall threaded connection has places the board, place board sliding connection at the outer wall of fixed plate, axis of rotation outer wall connection has cutting mechanism, cutting mechanism arranges the top of placing the board in, fixed plate outer wall is dug there is the through-hole, it has three and through-hole matched with feed opening to place board outer wall excavation, system appearance case outer wall connection has the supporting seat, supporting seat outer wall connection has the motor, the output of motor is connected with first pivot, first pivot outer wall connection has first gear, first gear outer wall meshing is connected with the second gear, second gear outer wall connection has the second pivot, the second pivot is rotated through the bearing and is connected in making the appearance incasement, first pivot and second pivot outer wall all cup jointed crushing roller, the bottom of fixed plate is connected with first curb plate and second curb plate, crushing roller arranges in between first curb plate and second curb plate, the outer wall of system appearance incasement wall is connected with the discharge gate, the even division mechanism that the sample case inner wall is connected with the discharge gate.
Preferably, the outer walls of the two sides of the placing plate are both connected with sliding blocks, and sliding grooves matched with the sliding blocks are formed in the outer wall of the fixing plate in a chiseled mode.
Preferably, a third rotating shaft is rotatably connected in the sample preparation box, first synchronizing wheels matched with the second rotating shaft and the third rotating shaft are connected to the outer walls of the second rotating shaft and the third rotating shaft, a first synchronizing belt is connected between the two first synchronizing wheels, a first bevel gear is connected to the outer wall of the third rotating shaft, and a second bevel gear matched with the first bevel gear is connected to the outer wall of the rotating shaft.
Preferably, the outer walls of the rotating shaft and the screw rod are connected with second synchronous wheels which are matched with each other, and a second synchronous belt is connected between the two second synchronous wheels.
Preferably, the cutting mechanism includes first connecting rod, first connecting rod fixed connection is at the outer wall of axis of rotation, first connecting rod outer wall rotates and is connected with the second connecting rod, the one end that first connecting rod was kept away from to the second connecting rod is connected with cutting tool, cutting tool offsets with placing the board outer wall activity.
Preferably, the inner wall of the sample preparation box is fixedly connected with a fixing rod, and the outer wall of the cutting tool is provided with a guide groove matched with the fixing rod in a chiseling mode.
Preferably, feed mechanism includes the swash plate, swash plate fixed connection is at the inner wall of system appearance case, the swash plate internal rotation is connected with the dwang, dwang and swash plate interference fit, dwang outer wall fixedly connected with swinging plate, there is frictional force between swinging plate and the swash plate, just swinging plate offsets with the riser activity.
Preferably, system appearance case outer wall sliding connection has the slide, the slide outer wall is dug flutedly, recess inner wall is connected with the first rack board with second gear intermeshing, the slide outer wall still is connected with the second rack board, dwang outer wall connection has the third gear with second rack board intermeshing.
Preferably, the outer walls of the two sides of the swinging plate are respectively connected with a first baffle and a second baffle, and the outer wall of the inclined plate is connected with a coaming.
Preferably, the bottom of the sample preparation box is provided with a waste port.
Compared with the prior art, the invention provides a sample preparation device for food safety detection, which has the following beneficial effects:
1. this food safety inspection is with system appearance device, through making the sample along with placing the board and remove and get into system appearance incasement portion gradually in the lead screw outside, cutting mechanism cuts the sample, the sample after the cutting loops through different feed openings and gets into the through-hole, and smash three batches of different positions's sample through only a pair of crushing roller, detect respectively through feed mechanism to the sample after the breakage afterwards, and then improve the accuracy of detected data, be favorable to protecting consumers' rights and benefits, the invention is simple in structure, the cost of manufacture of crushing roller has been greatly reduced, and then reduce food safety inspection cost, be favorable to satisfying actual user demand.
2. This food safety inspection is with system appearance device, the second pivot pivoted simultaneously, under the effect of first synchronous belt and first synchronizing wheel, the third pivot rotates along with the second pivot, and the first bevel gear in the third pivot outside and the second bevel gear intermeshing in the axis of rotation outside make the axis of rotation rotate, and then make cutting tool reciprocating motion from top to bottom, realize cutting food.
3. This food safety inspection is with system appearance device, second gear and first rack board intermeshing through the second pivot outside make first rack board drive the slide and remove, and then make the slide drive the third gear intermeshing in second rack board and the dwang outside, make the dwang drive swing board use the dwang to rotate as the centre of a circle, make the sample after crushing roller is broken get into the swash plate by swing board to reach the discharge gate through the swash plate, realize making the appearance to the collection of food.
4. This food safety inspection is with system appearance device sets up first baffle and second baffle through the both sides at the swing board, and the broken sample of the landing from the swing board of being convenient for can not drop in the space of being connected of swing board and swash plate, influences the rotation of swing board.
5. This food safety inspection is with system appearance device, through a sharing power supply promptly the motor, make full use of the kinetic energy of motor, reduced electric motor's the quantity that sets up, the detection and the maintenance of the device of being convenient for have further reduced equipment manufacturing cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of portion A of FIG. 1 according to the present invention;
FIG. 3 is a schematic cross-sectional view of a sample preparation box according to the present invention;
FIG. 4 is a schematic structural diagram of portion B of FIG. 3 according to the present invention;
FIG. 5 is a schematic cross-sectional view of a sample preparation box according to the present invention;
FIG. 6 is a schematic structural diagram of the portion C in FIG. 5 according to the present invention;
fig. 7 is a schematic structural diagram of the material distributing mechanism of the present invention.
In the figure: 1. preparing a sample box; 101. an inlet; 102. a supporting seat; 2. a fixing plate; 201. a through hole; 202. a chute; 3. placing the plate; 301. a feeding port; 302. a slider; 4. a motor; 401. a first rotating shaft; 4011. a first gear; 402. a second rotating shaft; 4021. a second gear; 5. a crushing roller; 6. a first side plate; 601. a second side plate; 602. a vertical plate; 7. a cover plate; 8. a screw rod; 9. a rotating shaft; 10. a third rotating shaft; 11. a first synchronization wheel; 111. a first synchronization belt; 12. a first bevel gear; 13. a second bevel gear; 14. a second synchronizing wheel; 141. a second synchronous belt; 15. a first link; 151. a second link; 152. cutting a cutter; 1521. a guide groove; 16. fixing the rod; 17. a sloping plate; 171. rotating the rod; 1711. a third gear; 172. a swing plate; 1721. a first baffle plate; 1722. a second baffle; 173. enclosing plates; 18. a slide plate; 181. a groove; 1811. a first rack plate; 182. a second rack plate; 19. a waste port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "fitted/connected", "connected", and the like, are to be interpreted broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other; the specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Example 1:
referring to fig. 1-7, a food safety inspection is with system appearance device, including system appearance case 1, the inner wall fixedly connected with fixed plate 2 of system appearance case 1, system appearance case 1 outer wall is excavated there is import 101, the top of fixed plate 2 is arranged in to import 101, system appearance case 1 inner wall still rotates and is connected with lead screw 8 and axis of rotation 9, lead screw 8 outer wall threaded connection has places board 3, place board 3 sliding connection at the outer wall of fixed plate 2, axis of rotation 9 outer wall connection has cutting mechanism, cutting mechanism arranges the top of placing board 3 in, fixed plate 2 outer wall is opened has through-hole 201, it has three feed opening 301 with through-hole 201 matched with to place board 3 outer wall, system appearance case 1 outer wall connection has supporting seat 102, supporting seat 102 outer wall connection has motor 4, motor 4's output is connected with first pivot 401, first pivot 401 outer wall connection has first gear 4011, first gear 4011 outer wall meshing is connected with second gear 4021, second gear 4021 outer wall connection has second pivot 402, second pivot 402 rotates through the bearing and is connected in system appearance case 1, first pivot 402 outer wall cup joints and second pivot 402 outer wall, the bottom of crushing roller apron 5 and crushing roller cover plate 601 are connected with crushing roller and crushing roller 2, and crushing roller 601, and crushing mechanism inner wall are connected with discharge gate 601 and crushing side board 601, and crushing mechanism are connected with crushing roller.
A third rotating shaft 10 is rotatably connected in the sample preparation box 1, first synchronizing wheels 11 matched with each other are connected to the outer walls of the second rotating shaft 402 and the third rotating shaft 10, a first synchronizing belt 111 is connected between the two first synchronizing wheels 11, a first bevel gear 12 is connected to the outer wall of the third rotating shaft 10, and a second bevel gear 13 matched with the first bevel gear 12 is connected to the outer wall of the rotating shaft 9.
The rotating shaft 9 and the outer wall of the screw rod 8 are connected with second synchronous wheels 14 which are matched with each other, and a second synchronous belt 141 is connected between the two second synchronous wheels 14.
Cutting mechanism includes first connecting rod 15, and first connecting rod 15 fixed connection is connected with second connecting rod 151 at the outer wall of axis of rotation 9, and the one end that first connecting rod 15 was kept away from to second connecting rod 151 is connected with cutting tool 152, and cutting tool 152 offsets with placing 3 outer wall activities of board.
The inner wall of the sample preparation box 1 is fixedly connected with a fixing rod 16, and the outer wall of the cutting tool 152 is provided with a guide groove 1521 matched with the fixing rod 16 in a chiseling mode.
The material distributing mechanism comprises an inclined plate 17, the inclined plate 17 is fixedly connected to the inner wall of the sample preparation box 1, a rotating rod 171 is rotatably connected to the inclined plate 17, the rotating rod 171 is in interference fit with the inclined plate 17, a swinging plate 172 is fixedly connected to the outer wall of the rotating rod 171, friction force exists between the swinging plate 172 and the inclined plate 17, and the swinging plate 172 movably abuts against the vertical plate 602.
The outer wall of the sample preparation box 1 is connected with a sliding plate 18 in a sliding mode, a groove 181 is formed in the outer wall of the sliding plate 18, a first rack plate 1811 meshed with the second gear 4021 is connected to the inner wall of the groove 181, a second rack plate 182 is further connected to the outer wall of the sliding plate 18, and a third gear 1711 meshed with the second rack plate 182 is connected to the outer wall of the rotating rod 171.
The bottom of the sample preparation box 1 is provided with a waste port 19.
When the device is used, food is placed on the placing plate 3, then the motor 4 is controlled to operate, the output end of the motor 4 drives the first rotating shaft 401 to rotate, the first rotating shaft 401 is meshed with the gear on the outer side of the second rotating shaft 402, the first rotating shaft 401 and the second rotating shaft 402 move relatively, and then the two crushing rollers 5 work, when the second rotating shaft 402 rotates, under the action of the first synchronous belt 111 and the first synchronous wheel 11, the third rotating shaft 10 rotates along with the second rotating shaft 402, the first bevel gear 12 on the outer side of the third rotating shaft 10 is meshed with the second bevel gear 13 on the outer side of the rotating shaft 9, so that the rotating shaft 9 rotates, the rotating shaft 9 drives the screw rod 8 to rotate through the second synchronous belt 141 and the second synchronous wheel 14, samples gradually enter the sample making box 1 along with the movement of the placing plate 3 on the outer side of the screw rod 8, and the first connecting rod 15 is driven to rotate when the rotating shaft 9 rotates, the first connecting rod 15 drives the second connecting rod 151 to move, the second connecting rod 151 drives the cutting tool 152 to move up and down, the fixing rod 16 limits the moving direction of the cutting tool 152, so that the cutting tool 152 gradually cuts and samples the food entering the sample preparation box 1 along with the placing plate 3 in the process of moving up and down, the food placed in the first discharging port 301 enters between the two crushing rollers 5 through the through hole 201 along with the movement of the placing plate 3, so as to be crushed by the working crushing rollers 5, the crushed food falls on the inclined plate 17 of the first material dividing mechanism, at this time, the first rack plate 1811 drives the sliding plate 18 to move along with the mutual engagement of the second gear 4021 outside the second rotating shaft 402 and the first rack plate 1811, the sliding plate 18 drives the second rack plate 182 to be mutually engaged with the third gear 1711 outside the rotating rod 171, so that the rotating rod 171 drives the rotating plate 172 to rotate around the center of the circle 171, the sample crushed by the crushing roller 5 slides from the swinging plate 172 to the inclined plate 17 and reaches the discharge hole along the inclined plate 17, so that the sample preparation of the first position of the food is realized, the food samples at other positions after being cut fall to the through hole 201 through the second feed opening 301 along with the rotation of the screw rod 8, the food sample preparation of the second position of the food is realized under the action of the second material distribution mechanism after being crushed by the crushing roller 5, and then the foods at different positions are respectively detected, so that the accuracy of the detection data is improved, the invention is beneficial to protecting the rights of consumers, has a simple structure, greatly reduces the manufacturing cost of the crushing roller 5, further reduces the food safety detection cost, and is beneficial to meeting the actual use requirements.
Example 2:
referring to fig. 5-7, a sample preparation device for food safety inspection, which is substantially the same as that in embodiment 1, further, the outer walls of both sides of the placing plate 3 are connected with sliding blocks 302, and the outer wall of the fixing plate 2 is chiseled with sliding grooves 202 matched with the sliding blocks 302; the stability of placing board 3 in the slip process is improved.
The outer walls of the two sides of the swinging plate 172 are respectively connected with a first baffle plate 1721 and a second baffle plate 1722, and the outer wall of the inclined plate 17 is connected with a surrounding plate 173; through set up first baffle 1721 and second baffle 1722 in the both sides of swinging plate 172, the broken sample of being convenient for to slide down from swinging plate 172 can not drop in swinging plate 172 and swash plate 17's joint space department, influences the rotation of swinging plate 172, and the setting of bounding wall 173 is convenient for make the sample discharge gate fast.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a food safety inspection is with system appearance device, includes system appearance case (1), its characterized in that, the inner wall fixedly connected with fixed plate (2) of system appearance case (1), system appearance case (1) outer wall is dug there is import (101), the top of fixed plate (2) is arranged in to import (101), system appearance case (1) inner wall still rotates and is connected with lead screw (8) and axis of rotation (9), lead screw (8) outer wall threaded connection has places board (3), place board (3) sliding connection at the outer wall of fixed plate (2), axis of rotation (9) outer wall connection has cutting mechanism, cutting mechanism arranges the top of placing board (3) in, fixed plate (2) outer wall is dug there is through-hole (201), place board (3) outer wall excavation have three and through-hole (201) matched with feed opening (301), system appearance case (1) outer wall connection has supporting seat (102), supporting seat (102) outer wall connection has motor (4), the output of motor (4) is connected with first pivot (401), first pivot (401) outer wall connection has second gear (4021), second gear (4011) outer wall (4021), the second rotating shaft (402) is rotatably connected in the sample preparation box (1) through a bearing, the outer walls of the first rotating shaft (401) and the second rotating shaft (402) are respectively sleeved with a crushing roller (5), the bottom of the fixed plate (2) is connected with a first side plate (6) and a second side plate (601), the two crushing rollers (5) are arranged between the first side plate (6) and the second side plate (601), the outer wall of the first side plate (6) is connected with a vertical plate (602), the inner wall of the sample preparation box (1) is also uniformly provided with a material distribution mechanism, the outer wall of the sample preparation box (1) is provided with a material outlet matched with the material distribution mechanism, and the inner wall of the material outlet is movably connected with a cover plate (7);
a third rotating shaft (10) is connected in the sample preparation box (1) in a rotating mode, the outer walls of the second rotating shaft (402) and the third rotating shaft (10) are connected with first synchronizing wheels (11) which are matched with each other, a first synchronizing belt (111) is connected between the two first synchronizing wheels (11), the outer wall of the third rotating shaft (10) is connected with a first bevel gear (12), and the outer wall of the rotating shaft (9) is connected with a second bevel gear (13) which is matched with the first bevel gear (12);
and the outer walls of the rotating shaft (9) and the screw rod (8) are connected with second synchronous wheels (14) matched with each other, and a second synchronous belt (141) is connected between the second synchronous wheels (14).
2. The sample preparation device for food safety detection according to claim 1, wherein sliding blocks (302) are connected to the outer walls of the two sides of the placing plate (3), and sliding grooves (202) matched with the sliding blocks (302) are formed in the outer wall of the fixing plate (2).
3. The sample preparation device for food safety detection according to claim 1, wherein the cutting mechanism comprises a first connecting rod (15), the first connecting rod (15) is fixedly connected to the outer wall of the rotating shaft (9), a second connecting rod (151) is rotatably connected to the outer wall of the first connecting rod (15), a cutting tool (152) is connected to one end, far away from the first connecting rod (15), of the second connecting rod (151), and the cutting tool (152) is movably abutted to the outer wall of the placing plate (3).
4. The sample preparation device for food safety inspection as claimed in claim 3, wherein a fixing rod (16) is fixedly connected to the inner wall of the sample preparation box (1), and a guide groove (1521) matched with the fixing rod (16) is chiseled on the outer wall of the cutting tool (152).
5. The food safety inspection sample preparation device according to claim 1, wherein the material distribution mechanism comprises an inclined plate (17), the inclined plate (17) is fixedly connected to the inner wall of the sample preparation box (1), a rotating rod (171) is rotatably connected to the inclined plate (17), the rotating rod (171) is in interference fit with the inclined plate (17), a swinging plate (172) is fixedly connected to the outer wall of the rotating rod (171), friction force exists between the swinging plate (172) and the inclined plate (17), and the swinging plate (172) is movably abutted to the vertical plate (602).
6. The food safety inspection sample preparation device according to claim 5, wherein a sliding plate (18) is slidably connected to the outer wall of the sample preparation box (1), a groove (181) is formed in the outer wall of the sliding plate (18), a first rack plate (1811) meshed with a second gear (4021) is connected to the inner wall of the groove (181), a second rack plate (182) is further connected to the outer wall of the sliding plate (18), and a third gear (1711) meshed with the second rack plate (182) is connected to the outer wall of the rotating rod (171).
7. The sample preparation device for food safety inspection according to claim 6, wherein the outer walls of the two sides of the swing plate (172) are respectively connected with a first baffle plate (1721) and a second baffle plate (1722), and the outer wall of the inclined plate (17) is connected with a baffle plate (173).
8. The sample preparation device for food safety inspection according to claim 1, wherein the bottom of the sample preparation box (1) is cut with a waste port (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110020705.XA CN112857931B (en) | 2021-01-08 | 2021-01-08 | Food safety inspection is with system appearance device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110020705.XA CN112857931B (en) | 2021-01-08 | 2021-01-08 | Food safety inspection is with system appearance device |
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| CN112857931A CN112857931A (en) | 2021-05-28 |
| CN112857931B true CN112857931B (en) | 2022-11-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116223113B (en) * | 2023-03-20 | 2023-09-08 | 泰安市食品药品检验检测研究院(泰安市纤维检验所) | Food and drug detection sampling equipment and sampling method thereof |
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