Aflatoxin detection device based on fluorescence sensor

Abstract

The utility model discloses an aflatoxin detection device based on fluorescence sensor, which relates to the technical field of aflatoxin detection, and comprises a detection box, the upper end of the detection box is provided with a feeding mechanism, the feeding mechanism comprises: a power transmission assembly arranged on one side of the detection box and used for providing transmission force for the whole feeding mechanism; the grinding assembly is arranged at the upper end of the power transmission assembly and comprises an L-shaped connecting rod fixedly installed on the upper portion of the power transmission assembly, a grinding box is fixed to the top end of the L-shaped connecting rod, a sliding pressing plate is slidably installed on the inner wall of the grinding box, and a fixing plate matched with the sliding pressing plate to grind materials is fixed to the inner wall of the grinding box. Triangular grinding strips are integrally formed on the opposite surfaces of the sliding pressing plate and the fixed plate, so that the problem that aflatoxin components in materials to be detected cannot be more accurately tested during specific detection due to lack of a grinding structure for the materials to be detected in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of aflatoxin detection technology, specifically to an aflatoxin detection device based on a fluorescence sensor. Background Technology

[0002] Aflatoxin B1 (AFB1) is a toxic secondary metabolite produced by fungi such as Aspergillus flavus and Aspergillus parasiticus. It is highly toxic, carcinogenic, and teratogenic, and has been classified as a Group 1 carcinogen by the International Agency for Research on Cancer (IARC) of the World Health Organization. When humans and animals ingest AFB1 through food, it can lead to decreased bodily functions, various diseases, and even death. Therefore, rapid, accurate, and efficient detection of AFB1 in food is crucial for timely identification of potential food safety hazards and for ensuring food safety.

[0003] The reference patent, entitled "A Detection Device for Aflatoxin in Lotus Seeds" (Publication No. CN213148737U, Application Date 2020-08-12), describes a device that stacks lotus seeds on a detection plate and pushes the plate towards a channel. A pusher plate pushes some of the lotus seeds into a detection groove, while the rest is pushed towards the rear of the plate. At most 1-2 lotus seeds are placed in the detection groove. After being pushed flat by the pusher plate, the detection plate enters the detection chamber for testing. Powered by an external power source, a fluorescent lamp, a colorimeter, and an ultraviolet detection device are used to detect aflatoxin in the lotus seed sample. The flat arrangement of the lotus seeds greatly improves the accuracy of the detection, thus providing an accurate detection device for aflatoxin in lotus seeds.

[0004] Based on the aforementioned patent, the existing technology lacks a grinding structure for the material to be tested, which makes it impossible for the fluorescent sensor to accurately detect the aflatoxin component during specific testing. Therefore, this utility model provides an aflatoxin detection device based on a fluorescent sensor. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an aflatoxin detection device based on a fluorescence sensor, which solves the problem that existing technologies lack a grinding structure for the material to be tested, making it impossible for the fluorescence sensor to accurately detect the aflatoxin component during specific detection.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an aflatoxin detection device based on a fluorescence sensor, comprising a detection box, wherein a feeding mechanism is installed at the upper end of the detection box, and the feeding mechanism includes:

[0007] The power transmission component is located on one side of the detection box and is used to provide power transmission for the entire feeding mechanism;

[0008] The grinding assembly is located on the upper part of the power transmission assembly. It includes an L-shaped connecting rod fixedly installed on the upper part of the power transmission assembly. A grinding box is fixed at the top of the L-shaped connecting rod. A sliding pressure plate is slidably installed on the inner wall of the grinding box. A fixed plate that cooperates with the sliding pressure plate to grind the material is fixed on the inner wall of the grinding box. Triangular grinding strips are integrally formed on the opposite surfaces of the sliding pressure plate and the fixed plate.

[0009] A drive component is mounted on the power transmission component and is used to provide driving force to the power transmission component.

[0010] Preferably, the power transmission assembly includes a U-shaped seat fixedly installed on one side of the detection box, and a movable base block is slidably installed on the U-shaped seat.

[0011] Preferably, a rotating shaft is rotatably mounted on the upper end of the movable base block, and a gear is fixed on the rotating shaft. A rack that meshes with the gear is fixed on the U-shaped seat.

[0012] Preferably, a first rod is fixed to the top of the rotating shaft, a second rod is rotatably connected to the end of the first rod, a movable connecting block is rotatably connected to the end of the second rod, and a protective shell for protecting the gears and rack is fixed to the upper end of the movable base block.

[0013] Preferably, the drive assembly includes a motor fixedly mounted on the front end of the U-shaped base, and a transmission screw is rotatably mounted on the inner side of the U-shaped base. The power input end of the transmission screw is connected to the power output end of the motor, and the transmission screw is threadedly connected to the movable base block.

[0014] Preferably, a detection chamber is provided on one side of the detection box, and a fluorescent sensor for detecting aflatoxin is installed inside the detection chamber.

[0015] Beneficial effects

[0016] This invention provides an aflatoxin detection device based on a fluorescence sensor. Compared with the prior art, it has the following advantages:

[0017] 1. This aflatoxin detection device based on a fluorescence sensor is designed with a grinding assembly. The triangular grinding strips on the opposite surfaces of the sliding pressure plate and the fixed plate work together to grind the material in the grinding box, making it finer and facilitating subsequent aflatoxin detection. As the moving base block advances horizontally, the ground material is sent into the detection chamber on one side of the detection box. The fluorescence sensor inside the detection chamber detects the aflatoxin component in the material. By rapidly grinding the material, the fluorescence sensor can more accurately detect the aflatoxin component during specific detection.

[0018] 2. This aflatoxin detection device based on a fluorescence sensor incorporates a power transmission component. Due to the threaded connection between the moving base block and the transmission screw, the rotation of the transmission screw is converted into linear movement of the moving base block on the U-shaped seat. As the moving base block moves, the rotating shaft at its upper end also moves. A gear fixed on the shaft meshes with a rack fixed on the U-shaped seat. This meshing ensures that the shaft maintains rotation while moving. The rotation of the shaft is transmitted through the first section rod, the second section rod, and the movable connecting block, ultimately driving the sliding pressure plate inside the grinding box to reciprocate. This results in high transmission efficiency and ease of use. Attached Figure Description

[0019] Figure 1 This is a first-person perspective view of the entire utility model;

[0020] Figure 2 This is a schematic diagram of the entire utility model from a second perspective;

[0021] Figure 3 This is a schematic diagram of the feeding mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the feeding mechanism transmission of this utility model.

[0023] In the diagram: 1-Detection box, 2-Detection chamber, 3-Feeding mechanism, 31-Power transmission assembly, 311-U-shaped seat, 312-Moving base block, 313-Rotating shaft, 314-Gear, 315-Rack, 316-First rod section, 317-Second rod section, 318-Modible connecting block, 319-Protective shell, 32-Grinding assembly, 321-L-shaped connecting rod, 322-Grinding box, 323-Sliding pressure plate, 324-Fixed plate, 325-Triangular grinding strip, 33-Drive assembly, 331-Transmission screw, 332-Motor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4This utility model provides a technical solution: an aflatoxin detection device based on a fluorescence sensor, including a detection box 1, a feeding mechanism 3 installed on the upper end of the detection box 1, the feeding mechanism 3 including: a power transmission component 31, disposed on one side of the detection box 1, and used to provide power transmission for the entire feeding mechanism 3; a grinding component 32, disposed on the upper end of the power transmission component 31, including an L-shaped connecting rod 321 fixedly installed on the upper part of the power transmission component 31, a grinding box 322 fixed at the top of the L-shaped connecting rod 321, a sliding pressure plate 323 slidably installed on the inner wall of the grinding box 322, and a fixed plate 324 fixed on the inner wall of the grinding box 322, which cooperates with the sliding pressure plate 323 to grind the material, and triangular grinding strips 325 integrally formed on the opposite surfaces of the sliding pressure plate 323 and the fixed plate 324; and a driving component 33, disposed on the power transmission component 31, and used to provide driving force for the power transmission component 31.

[0026] In this embodiment, the power transmission assembly 31 includes a U-shaped base 311 fixedly installed on one side of the detection box 1, and a movable base block 312 slidably installed on the U-shaped base 311. A rotating shaft 313 is rotatably installed on the upper end of the movable base block 312, and a gear 314 is fixed on the rotating shaft 313. A rack 315 that meshes with the gear 314 is fixed on the U-shaped base 311. A first section rod 316 is fixed at the top end of the rotating shaft 313. A second section rod 317 is rotatably connected to the end of the first section rod 316. A movable connecting block 318 is rotatably connected to the end of the second section rod 317. A protective device for the gear 314 is fixed at the upper end of the movable base block 312. The protective shell 319 of the rack 315; the rotation of the transmission screw 331 will be converted into the linear movement of the moving base block 312 on the U-shaped seat 311. As the moving base block 312 moves, the rotating shaft 313 at its upper end also moves. The gear 314 fixed on the rotating shaft 313 meshes with the rack 315 fixed on the U-shaped seat 311. This meshing relationship ensures that the rotating shaft 313 can maintain rotation while moving. The rotation of the rotating shaft 313 is transmitted through the first section rod 316, the second section rod 317 and the movable connecting block 318, and finally drives the sliding pressure plate 323 in the grinding box 322 to reciprocate.

[0027] In this embodiment, the drive assembly 33 includes a motor 332 fixedly installed at the front end of the U-shaped base 311, and a transmission screw 331 is rotatably installed inside the U-shaped base 311. The power input end of the transmission screw 331 is connected to the power output end of the motor 332, and the transmission screw 331 is threadedly connected to the moving base block 312. By starting the motor 332, the power output end of the motor 332 begins to rotate, driving the transmission screw 331 connected to it to rotate inside the U-shaped base 311. Specifically, the motor 332 is a reversible AM34HD0404-08 stepper motor.

[0028] In this embodiment, a detection chamber 2 is provided on one side of the detection box 1, and a fluorescent sensor for detecting aflatoxin is installed inside the detection chamber 2; the milled material is fed into the detection chamber 2 on one side of the detection box 1, and the fluorescent sensor inside the detection chamber 2 detects the aflatoxin in the material.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] During operation, the food sample to be tested is placed into the grinding assembly 32 of the feeding mechanism 3, i.e., the grinding box 322. Ensure that the fluorescence sensor in the detection chamber 2 of the detection box 1 is correctly installed and in working condition. Check that the motor 332 of the drive assembly 33 is connected to the power supply and confirm that it is in standby mode. Then, start the motor 332. The power output end of the motor 332 begins to rotate, driving the connected transmission screw 331 to rotate inside the U-shaped seat 311. Due to the interaction between the moving base block 312 and the transmission screw 3... The screws 31 and 31 are connected by threads, so the rotation of the transmission screw 331 is converted into linear movement of the moving base block 312 on the U-shaped seat 311. As the moving base block 312 moves, the rotating shaft 313 at its upper end also moves. The gear 314 fixed on the rotating shaft 313 meshes with the rack 315 fixed on the U-shaped seat 311. This meshing relationship ensures that the rotating shaft 313 can maintain rotation while moving. The rotation of the rotating shaft 313 is transmitted through the first section rod 316, the second section rod 317, and the movable connecting block 318. The transmission ultimately drives the sliding pressure plate 323 inside the grinding box 322 to reciprocate. The triangular grinding strips 325 on the opposite surface of the sliding pressure plate 323 and the fixed plate 324 cooperate to grind the material inside the grinding box 322, making it finer and facilitating subsequent aflatoxin detection. As the moving base block 312 advances horizontally, the ground material is sent into the detection chamber 2 on one side of the detection box 1. The fluorescence sensor inside the detection chamber 2 detects the aflatoxin component in the material. The working principle of the fluorescence sensor is usually based on the intensity of the fluorescence signal generated after aflatoxin reacts with a specific fluorescent substance to determine the aflatoxin content. The fluorescence sensor converts the detected signal into an electrical signal and transmits it to the external data processing equipment through a data line for data analysis and result display. After the fluorescence sensor completes the detection, the data processing equipment processes and analyzes the received signal to determine the aflatoxin content in the material. The operator can determine whether the material meets the safety standards based on the analysis results and take corresponding measures.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fluorescence sensor-based aflatoxin detection device comprising a detection box (1), characterized in that: The detection box (1) upper end is provided with a feeding mechanism (3), the feeding mechanism (3) includes: Power transmission assembly (31) is arranged on one side of detection box (1), and is used for providing transmission power for the whole feeding mechanism (3); The grinding assembly (32) is arranged on the upper end of the power transmission assembly (31), including the L-shaped connecting rod (321) fixedly installed on the upper part of the power transmission assembly (31), the top end of the L-shaped connecting rod (321) is fixed with the grinding box (322), the inner wall of the grinding box (322) is slidably installed with the sliding pressing plate (323), and the inner wall of the grinding box (322) is fixed with the fixed plate (324) matched with the sliding pressing plate (323) for grinding the material, the opposite surfaces of the sliding pressing plate (323) and the fixed plate (324) are integrally formed with the triangular grinding strip (325); Driving assembly (33) is arranged on the power transmission assembly (31) and is used for providing driving force for the power transmission assembly (31).

2. The aflatoxin detection device based on fluorescent sensor according to claim 1, characterized in that: The power transmission assembly (31) includes a U-shaped seat (311) fixedly installed on one side of the detection box (1), and a moving base block (312) is slidably installed on the U-shaped seat (311).

3. The aflatoxin detection device based on fluorescent sensor according to claim 2, characterized in that: The rotating shaft (313) is rotatably installed on the upper end of the moving base block (312), and the gear (314) is fixed on the rotating shaft (313), the U-shaped seat (311) is fixed with the rack (315) engaged with the gear (314).

4. The aflatoxin detection device based on fluorescent sensor according to claim 3, characterized in that: The first joint lever (316) is fixed on the top end of the rotating shaft (313), the second joint lever (317) is rotatably connected to the end of the first joint lever (316), the movable connecting block (318) is rotatably connected to the end of the second joint lever (317), and the protection shell (319) for protecting the gear (314) and the rack (315) is fixed on the upper end of the moving base block (312).

5. The aflatoxin detection device based on fluorescent sensor according to claim 2, characterized in that: The driving assembly (33) includes a motor (332) fixedly installed on the front end of the U-shaped seat (311), and a transmission screw (331) is rotatably installed on the inner side of the U-shaped seat (311), the power input end of the transmission screw (331) is connected with the power output end of the motor (332), and the transmission screw (331) and the moving base block (312) are threadedly connected.

6. The aflatoxin detection device based on fluorescent sensor according to claim 1, characterized in that: One side of the detection box (1) is provided with a detection cavity (2), and a fluorescence sensor for detecting aflatoxin components is installed in the detection cavity (2).

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