A device for detecting aflatoxin in grain

Abstract

The utility model provides a kind of grain aflatoxin detection equipment, it is related to grain detection field, including support rod and baffle;The right side surface of baffle is equipped with conveying motor, and the motor shaft of conveying motor is equipped with threaded conveying rotating lever, and the left side surface of baffle is welded with guide rod, and the outer side surface of guide rod is slidably connected with conveying plate, and the right side surface of baffle is equipped with push-pull motor, and the motor shaft of push-pull motor is equipped with threaded rod, and the left side surface of baffle is welded with sliding rod, and the outer side surface of sliding rod is slidably connected with pressing plate;The outer side surface of support rod is slidably connected with push-pull plate;Through the setting of threaded conveying rotating lever, conveying plate, push column, push-pull plate and threaded rod, the continuous automation detection of multiple groups of samples is realized, the aflatoxin detection efficiency is improved, and the problem that multiple groups of sampling test paper cards are operated complicatedly and inconveniently by repeated taking and replacing mode due to the fact that traditional aflatoxin quantitative detector cannot uniformly send multiple groups of grain samples into sampling test paper cards for one-by-one detection is solved.

Description

Technical Field

[0001] This utility model belongs to the field of grain testing, and more specifically, it relates to a device for detecting aflatoxin in grain. Background Technology

[0002] Aflatoxin is a toxic metabolite produced by Aspergillus flavus and Aspergillus parasiticus. It is classified as a potent carcinogen and is commonly found in moldy grains, nuts, and edible oils. Currently, to effectively ensure food safety and consumer health, testing laboratories typically use aflatoxin quantitative detectors to perform fluorescence immunochromatographic analysis on sample test strips. However, in actual testing, traditional aflatoxin quantitative detectors only have one set of LED light source illumination channels. When testing multiple sets of grain sample test strips, operators must replace each strip sequentially in a single detection channel. After completing one set of samples, the strips must be manually removed and the next set inserted. Therefore, traditional aflatoxin quantitative detectors cannot uniformly feed multiple sets of grain sample test strips into the LED light source illumination area. The repeated handling of multiple grain sample test strips in a single LED light source illumination channel is cumbersome, complex, and inconvenient, significantly reducing aflatoxin detection efficiency. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a device for detecting aflatoxin in grains, thereby solving the problem that traditional aflatoxin quantitative detectors cannot uniformly feed multiple sets of grain sample test strips for individual testing, resulting in cumbersome and inconvenient operation of repeatedly taking and replacing multiple sets of sample test strips.

[0004] This utility model provides a device for detecting aflatoxin in grain, including a top plate; a touch screen is installed on the upper side of the top plate, a housing is bolted to the lower side of the top plate, a base plate is bolted to the lower side of the housing, and a report printer and a control unit are installed on the upper side of the base plate; it also includes a support rod and a partition; the front and rear ends of the partition are welded to housings, a power interface is installed on the rear side of the housing, a conveyor motor is installed on the right side of the partition, a threaded conveyor rod is installed on the motor shaft of the conveyor motor, a guide rod is welded to the left side of the partition, a housing is welded to the left end of the guide rod, a conveyor plate is slidably connected to the outer side of the guide rod, a detection frame is welded to the front side of the conveyor plate, a push-pull motor is installed on the right side of the partition, a threaded rod is installed on the motor shaft of the push-pull motor, a slide rod is welded to the left side of the partition, a housing is welded to the left end of the slide rod, and a pressure plate is slidably connected to the outer side of the slide rod; the front and rear ends of the support rod are welded to housings, a push-pull plate is slidably connected to the outer side of the support rod, and a placement plate is bolted to the front side of the push-pull plate.

[0005] Furthermore, the front side of the housing is provided with a rectangular through groove, and a placement plate is inserted into the rectangular through groove of the housing. A sealing plate is welded to the front side of the placement plate, and a silicone sealing gasket is adhered to the rear side of the sealing plate. When the placement plate is sent into the inner side of the housing, the upper side of the placement plate is provided with five sets of rectangular grooves, which are arranged equidistantly from left to right.

[0006] Furthermore, the testing frame has an L-shaped folded plate structure, with a through hole at the center of the upper side of the testing frame. A photoelectric sensor is installed in the through hole of the testing frame, and an LED ring light panel is installed on the lower side of the testing frame.

[0007] Furthermore, the conveying plate has a cuboid structure. The left side of the cuboid structure of the conveying plate near the rear end has a threaded through hole that runs from left to right. The left side of the cuboid structure of the conveying plate near the front end has a through hole that runs from left to right. The outer side of the threaded conveying rod is threadedly engaged with the threaded through hole of the conveying plate, and the guide rod is inserted into the through hole of the conveying plate.

[0008] Furthermore, the upper side of the push-pull plate is provided with a long, oblique through groove that runs vertically through the top and bottom, and the front side of the push-pull plate is provided with a circular through hole that runs from front to back near the left and right ends. Two sets of support rods are respectively inserted into the two sets of through holes of the push-pull plate.

[0009] Furthermore, the left side of the pressure plate near the rear end is provided with a threaded through hole that runs from left to right, and the left side of the pressure plate near the front end is provided with a through hole that runs from left to right. The outer side of the threaded rod is threadedly engaged with the threaded through hole of the pressure plate, and the sliding rod is inserted into the through hole of the pressure plate. A pushing column is welded to the upper side of the pressure plate. The pushing column has a cylindrical structure and is inserted into the long, oblique through groove of the push-pull plate.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. In this utility model, on the one hand, a conveyor motor drives a conveyor plate connected to the outer side of a threaded conveyor rod to move horizontally left and right along a guide rod, so that the photoelectric sensor on the detection frame sequentially completes fluorescence sensing detection on five sets of sampling test strips, realizing continuous automated detection of multiple sets of samples. On the other hand, a push-pull motor drives a push-press column welded to the upper side of the pressure plate through a threaded rod to push the inclined through groove structure of the push-pull plate, so that the push-pull plate drives the sampling test strips in the five rectangular grooves of the placement plate to automatically move in and out of the housing. This eliminates the repetitive pushing and picking operations of frequently replacing test strips in traditional single-channel detection equipment, thus improving the detection efficiency of aflatoxin. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2This is a schematic diagram of the rear side view of this utility model.

[0013] Figure 3 This is a front view structural diagram of this utility model.

[0014] Figure 4 This is a schematic diagram of the placement plate of this utility model in the open state.

[0015] Figure 5 This is a front side view sectional structural diagram of this utility model.

[0016] Figure 6 This is the utility model Figure 5 Enlarged structural diagram of part A in the middle.

[0017] Figure 7 This is a schematic diagram of the rear side sectional structure of this utility model.

[0018] Figure 8 This is the utility model Figure 7 Enlarged structural diagram of part B in the middle.

[0019] Figure 9 This is a top-view exploded structural diagram of this utility model.

[0020] Figure 10 This is a side view of the exploded structure of this utility model.

[0021] Figure 11 This is an electrical principle block diagram of this utility model.

[0022] Reference numerals: 1. Housing; 2. Sealing plate; 3. Silicone sealing gasket; 4. Top plate; 5. Touch screen display; 6. Control unit; 7. Report printer; 8. Conveyor plate; 9. Threaded conveyor rotating rod; 10. Pushing column; 11. Push-pull plate; 12. Guide rod; 13. Placement plate; 14. Support rod; 15. Partition plate; 16. Detection frame; 17. Photoelectric sensor; 18. LED ring light panel; 19. Push-pull motor; 20. Base plate; 21. Slide rod; 22. Pressure plate; 23. Threaded rod; 24. Power interface; 25. Conveyor motor. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] like Figures 1-11As shown, this utility model provides an aflatoxin detection device for grains, including a top plate 4; a touch display 5 is installed on the upper side of the top plate 4, and a housing 1 is bolted to the lower side of the top plate 4. A bottom plate 20 is bolted to the lower side of the housing 1, and a report printer 7 and a control unit 6 are installed on the upper side of the bottom plate 20; it also includes a support rod 14 and a partition 15; the housing 1 is welded to both the front and rear ends of the partition 15, a power interface 24 is installed on the rear side of the housing 1, a conveyor motor 25 is installed on the right side of the partition 15, a threaded conveyor rotating rod 9 is installed on the motor shaft of the conveyor motor 25, and the left side of the partition 15... A guide rod 12 is welded to the front side of the partition 15. A housing 1 is welded to the left end of the guide rod 12. A conveyor plate 8 is slidably connected to the outer side of the guide rod 12. A detection frame 16 is welded to the front side of the conveyor plate 8. A push-pull motor 19 is installed on the right side of the partition 15. A threaded rod 23 is installed on the motor shaft of the push-pull motor 19. A slide rod 21 is welded to the left side of the partition 15. A housing 1 is welded to the left end of the slide rod 21. A pressure plate 22 is slidably connected to the outer side of the slide rod 21. A housing 1 is welded to both the front and rear ends of the support rod 14. A push-pull plate 11 is slidably connected to the outer side of the support rod 14. A placement plate 13 is bolted to the front side of the push-pull plate 11.

[0025] In this embodiment of the present invention, a rectangular through groove is provided on the front side of the housing 1, and a placement plate 13 is inserted into the rectangular through groove of the housing 1. A sealing plate 2 is welded to the front side of the placement plate 13, and a silicone sealing gasket 3 is adhered to the rear side of the sealing plate 2. When the placement plate 13 is inserted into the inner side of the housing 1, the sealing plate 2 pushes the silicone sealing gasket 3 to fit into the groove opening of the rectangular through groove of the housing 1, so as to avoid external impurities from contaminating the reaction area of ​​the test strip during the detection process, and to provide a sealed and stable detection environment for the detection of aflatoxin on the sampling test strip. The upper side of the placement plate 13 is provided with five sets of rectangular grooves, which are equidistant from left to right. The sampling test strip is placed in the five sets of rectangular grooves of the placement plate 13. The groove walls of the rectangular grooves of the placement plate 13 horizontally limit the sampling test strip, so as to prevent the sampling test strip from being horizontally offset by external vibration on the placement plate 13, and to ensure that the photoelectric sensor 17 can stably detect the fluorescence excited by the sampling test strip from the upper and lower sides.

[0026] In this embodiment of the present invention, the detection frame 16 is an L-shaped folded plate structure. A through hole is provided at the center of the upper side of the detection frame 16. A photoelectric sensor 17 is installed in the through hole of the detection frame 16. An LED ring light plate 18 is installed on the lower side of the detection frame 16. The LED ring light plate 18 provides circumferential shadowless illumination to the sampling test strip card, avoiding shadows. This ensures that the light from the LED ring light plate 18 fully excites the fluorescent material of the sampling test strip card to emit light, ensuring that the photoelectric sensor 17 accurately collects the fluorescent signal excited by the sampling test strip card, thereby improving the accuracy of the detection results.

[0027] In this embodiment of the utility model, the conveying plate 8 is a cuboid structure. The left side of the cuboid structure of the conveying plate 8 near the rear end has a threaded through hole that runs from left to right, and the left side of the cuboid structure of the conveying plate 8 near the front end has a through hole that runs from left to right. The outer side of the threaded conveying rod 9 is threadedly engaged with the threaded through hole of the conveying plate 8. The guide rod 12 is inserted into the through hole of the conveying plate 8. During the process of the conveying motor 25 driving the threaded conveying rod 9 to rotate, the threaded conveying rod 9 drives the conveying plate 8 to move from left to right along the guide rod 12, so that the conveying plate 8 drives the detection frame 16 welded to the front end to move synchronously. The detection frame 16 drives the photoelectric sensor 17 to perform fluorescence sensing detection on the sampling test strip cards placed in the five sets of rectangular grooves of the placement plate 13 in sequence. This eliminates the need for frequent manual replacement of the test strip cards and improves the detection efficiency.

[0028] In this embodiment of the utility model, the upper side of the push-pull plate 11 is provided with a long, oblique through groove that runs vertically through the top and bottom. The front side of the push-pull plate 11 is provided with a circular through hole that runs from front to back through the left and right ends. Two sets of support rods 14 are respectively inserted into the two sets of through holes of the push-pull plate 11. When the push-pressing column 10 pushes the groove wall structure of the long, oblique through groove, the two sets of support rods 14 support the placement plate 13, which is bolted to the front end of the push-pull plate 11, to move horizontally in a directional manner, preventing the placement plate 13 from deflecting horizontally to the left and right, and ensuring that the sampling test paper card placed in the rectangular groove of the placement plate 13 is stably transferred to the bottom side of the photoelectric sensor 17.

[0029] In this embodiment of the utility model, a threaded through hole is provided on the left side of the pressure plate 22 near the rear end, and a threaded through hole is provided on the left side of the pressure plate 22 near the front end. The outer side of the threaded rod 23 is threadedly engaged with the threaded through hole of the pressure plate 22. The sliding rod 21 is inserted into the through hole of the pressure plate 22. A pushing column 10 is welded to the upper side of the pressure plate 22. The pushing column 10 has a cylindrical structure and is inserted into the elongated oblique through groove of the push-pull plate 11. The push-pull motor 19 drives the threaded rod 23 to pass through the threaded through hole of the pressure plate 22. During the rotation of the threaded rod 23, the threaded rod 23 drives the pressure plate 22, which is engaged with the outer side, to move left and right along the slide rod 21. This causes the pusher column 10 welded to the upper side of the pressure plate 22 to push the groove wall of the long, oblique through groove of the push-pull plate 11. The push-pull plate 11 then drives the placement plate 13 to move horizontally back and forth in the rectangular through groove of the housing 1, completing the automatic transfer of the placement plate 13. This avoids the need for manual pushing of the sampling test strip into the testing area, reducing the labor intensity of picking up and taking the sampling test strip.

[0030] Specific usage and function of this utility model embodiment: In this invention, when detecting aflatoxin in grains, an external power cord is connected to power interface 24. Power interface 24 supplies power to the power supply module of the control unit 6 via a wire. Then, five sets of sampling test strips are placed in the five rectangular grooves of the placement plate 13. The touch display 5 inputs the sample type information of the five sets of sampling test strips and confirms the start. The touch display 5 transmits the control signal to the control unit 6 via a wire. At this time, the motor control module of the control unit 6 controls the push-pull motor 19 to start via a wire. The push-pull motor 19 drives the threaded rod 23 to rotate. Since the outer thread of the threaded rod 23 is engaged with the threaded through hole of the pressure plate 22, the threaded rod 23 drives the pressure plate 22 to rotate. 2. Moving from right to left along the guide rod 12, the pressure plate 22 drives the pusher column 10 to push the inclined structure of the push-pull plate 11. The push-pull plate 11 then drives the placement plate 13 to move backward along the support rod 14 until the sealing plate 2 welded to the front side of the placement plate 13 drives the silicone sealing gasket 3 to adhere to the front side of the housing 1. Then, the motor control module of the control machine 6 controls the start of the conveyor motor 25 through the wire. The conveyor motor 25 drives the threaded conveyor rotor 9 to rotate. Since the threaded connection of the outer side of the threaded conveyor rotor 9 is engaged in the threaded through hole of the conveyor plate 8, the threaded conveyor rotor 9 drives the conveyor plate 8 to move from left to right along the guide rod 12. When the conveyor plate 8 drives the photoelectric sensor 17 installed at the through hole of the detection frame 16 to move to the right to the placement... When the first set of sampling test strips is placed in the rectangular groove at the far right of plate 13, the motor control module of control unit 6 stops the conveyor motor 25 via wires. The lighting control module of control unit 6 controls the LED ring light panel 18 to provide shadowless illumination to the sampling test strips via wires. After receiving the light, the sampling test strips emit a fluorescent signal. The photoelectric sensor 17 collects and detects the fluorescence intensity emitted by the sampling test strips. The photoelectric sensor 17 converts the fluorescence signal into a fluorescence intensity data signal, which is transmitted to the aflatoxin detection control module of control unit 6 via wires. The aflatoxin detection control module of control unit 6 calculates the toxin content of the sample on the sampling test strips. Then, the motor control module of control unit 6 controls the LED ring light panel 18 to provide shadowless illumination to the sampling test strips via wires. The conveyor motor 25 is restarted, and the photoelectric sensor 17 sequentially tests the remaining four sets of sampling test strips. After the five sets of sampling test strips are tested, the motor control module of the control unit 6 controls the conveyor motor 25 to drive the conveyor plate 8, which is engaged with the outer side of the threaded conveyor rod 9, to move to the left to the initial position via the wire. The aflatoxin detection control module of the control unit 6 sends the toxin content detection results of the five sets of sampling test strips to the report printer 7 via the wire. The display control module of the control unit 6 sends the toxin content detection results to the touch screen 5 via the wire for display. The report printer 7 then prints out the toxin content of the five sets of sampling test strips, thus completing the aflatoxin detection work in grain.

[0031] All the above components are installed, connected, or set up using common mechanical methods, such as welding, threaded connections, and screw connections. Furthermore, the specific structure, model, and coefficient indicators of all components are based on their own technologies; any method that achieves the desired effect can be implemented. The touch display 5, control unit 6, report printer 7, photoelectric sensor 17, LED ring light board 18, push-pull motor 19, power interface 24, and conveyor motor 25 mentioned above are all common commercially available components. Upon purchase and use, simply connect them according to the instruction manual provided; therefore, further details are omitted here.

[0032] The technical solution of this utility model is not limited to the scope of the embodiments of this utility model. All technical contents not described in detail in this utility model are known technologies.

Claims

1. A device for detecting aflatoxin in grain, comprising a top plate (4); a touch screen display (5) is mounted on the upper side of the top plate (4), a housing (1) is bolted to the lower side of the top plate (4), a bottom plate (20) is bolted to the lower side of the housing (1), and a report printer (7) and a control unit (6) are mounted on the upper side of the bottom plate (20); characterized in that: It also includes a support rod (14) and a partition (15); the front and rear ends of the partition (15) are welded with a housing (1), a power interface (24) is installed on the rear side of the housing (1), a conveyor motor (25) is installed on the right side of the partition (15), a threaded conveyor rotating rod (9) is installed on the motor shaft of the conveyor motor (25), a guide rod (12) is welded on the left side of the partition (15), a housing (1) is welded to the left end of the guide rod (12), a conveyor plate (8) is slidably connected to the outer side of the guide rod (12), and a detection device is welded to the front side of the conveyor plate (8). The frame (16) has a push-pull motor (19) installed on the right side of the partition (15). A threaded rod (23) is installed on the motor shaft of the push-pull motor (19). A slide rod (21) is welded to the left side of the partition (15). A housing (1) is welded to the left end of the slide rod (21). A pressure plate (22) is slidably connected to the outer side of the slide rod (21). A housing (1) is welded to both the front and rear ends of the support rod (14). A push-pull plate (11) is slidably connected to the outer side of the support rod (14). A placement plate (13) is bolted to the front side of the push-pull plate (11).

2. The aflatoxin detection device in grain as described in claim 1, characterized in that: The front side of the housing (1) is provided with a rectangular through groove. A placement plate (13) is inserted in the rectangular through groove of the housing (1). A sealing plate (2) is welded to the front side of the placement plate (13). A silicone sealing gasket (3) is attached to the rear side of the sealing plate (2). When the placement plate (13) is sent into the inner side of the housing (1), five sets of rectangular grooves are provided on the upper side of the placement plate (13). The five sets of rectangular grooves are arranged equidistantly from left to right.

3. The aflatoxin detection device in grain as described in claim 1, characterized in that: The testing frame (16) is an L-shaped folded plate structure. A through hole is provided at the center of the upper side of the testing frame (16). A photoelectric sensor (17) is installed in the through hole of the testing frame (16). An LED ring light panel (18) is installed on the lower side of the testing frame (16).

4. The aflatoxin detection device in grain as described in claim 1, characterized in that: The conveying plate (8) is a cuboid structure. The left side of the cuboid structure of the conveying plate (8) near the rear end is provided with a threaded through hole that runs from left to right. The left side of the cuboid structure of the conveying plate (8) near the front end is provided with a through hole that runs from left to right. The outer side of the threaded conveying rod (9) is threadedly engaged in the threaded through hole of the conveying plate (8). The guide rod (12) is inserted into the through hole of the conveying plate (8).

5. The aflatoxin detection device in grain as described in claim 1, characterized in that: The upper side of the push-pull plate (11) is provided with a long, oblique through groove that runs vertically through the top and bottom. The front side of the push-pull plate (11) is provided with a circular through hole that runs from front to back near the left and right ends. Two sets of support rods (14) are respectively inserted into the two sets of through holes of the push-pull plate (11).

6. The aflatoxin detection device in grain as described in claim 1, characterized in that: The left side of the pressure plate (22) near the rear end is provided with a threaded through hole that runs from left to right. The left side of the pressure plate (22) near the front end is provided with a through hole that runs from left to right. The outer side of the threaded rod (23) is threadedly engaged with the threaded through hole of the pressure plate (22). The sliding rod (21) is inserted into the through hole of the pressure plate (22). The upper side of the pressure plate (22) is welded with a push column (10). The push column (10) is a cylindrical structure and is inserted into the long, oblique through groove of the push-pull plate (11).

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