Food safety detection equipment and detection method

Abstract

The food safety detection equipment disclosed by the invention comprises a sampling mechanism, a multi-station turntable device, a centrifugal device, a conveying mechanism, a detection device, a reagent adding device and an extraction mechanism. The sampling mechanism is provided with a sampling table; the multi-station turntable device is provided with a first containing part; the centrifugal device comprises a rotating frame and a first driving mechanism, and the rotating frame is provided with a second containing part; the first conveying mechanism is used for transferring the sample containers among the sampling mechanism, the multi-station turntable device and the centrifugal device; the detection device is provided with a third containing part, a fourth containing part, a first image acquisition device and a second image acquisition device; the reagent adding device is used for adding reagents to form a first sample and a second sample; the extraction mechanism comprises a manipulator and a pipette and is used for extracting the first sample and the second sample. The device has the advantages of high automation degree, good soaking and purifying effects, high detection precision and integration of multiple detection means.

Description

Technical Field

[0001] The present invention relates to the technical field of food safety detection, and in particular to a food safety detection device and a detection method. Background Art

[0002] With the acceleration of globalization and the continuous extension of the food production chain, food safety has become the focus of global attention, and its urgency and importance cannot be ignored. This issue is closely related to the life safety and health of every consumer. In this context, food testing, as a key link in ensuring food safety, has become increasingly prominent and has become a solid line of defense for safeguarding public health and social stability.

[0003] In the process of food safety testing, a large number of food samples need to be systematically and scientifically processed. The core step of this process is to fully mix the sample and the reagent in a special container. To ensure that the sample can be fully and evenly dissolved in the reagent, the tester will use a special stirring device to evenly stir the mixed system to promote the deep integration of the sample and the reagent, laying a solid and reliable foundation for subsequent testing work.

[0004] After a preset period of time for sufficient reaction and dissolution, the tester will use a pipette 72 to accurately extract a certain amount of sample from the mixed system and then drop it into a dedicated test container. In the test container, the extracted sample will be combined with chemical reagents, which can react specifically with specific components in the sample to form a test solution for final analysis. Subsequently, with the help of testing technology and instruments, the tester can monitor and accurately analyze the subtle chemical changes in the test solution in real time, thereby accurately evaluating the safety indicators of food samples and ensuring that each food meets strict safety standards.

[0005] like Fig.19As shown, the pipette 72 is a precise liquid handling tool with an exquisite design. It consists of a body 721, a piston rod 722 built into the body, and a suction head 723 that fits closely with the end of the body. The piston rod and the body work together to form an efficient piston system, and the liquid is sucked and discharged through the movement of the piston rod. When the top of the piston rod is pushed, the piston moves downward, exhausts the gas in the body, forms a negative pressure, and attracts external liquid into the suction head. After letting go, the piston rod returns to its original position under the action of the reset spring, and the liquid in the suction head is stably retained or discharged to other containers as needed. The significant advantage of the pipette is that it can achieve precise control of the amount of liquid absorbed by accurately controlling the stroke of the piston rod. This feature makes it widely used in scientific research, medicine, biological experiments and other fields, especially in occasions where it is necessary to accurately measure trace amounts of liquid. In addition, the pipette is also equipped with a convenient suction head replacement mechanism, that is, a pop-up button 724, so that users can easily and quickly replace the suction head without additional tools or laborious operation, which greatly improves work efficiency.

[0006] However, although current food safety testing equipment has made significant progress, it still faces some technical challenges that need to be overcome:

[0007] (1) The low efficiency of soaking and purification seriously restricts the improvement of detection accuracy. In the existing food safety testing process, soaking and purification are crucial links. Unfortunately, the current soaking method mostly relies on simple stirring to achieve the mixing of samples and reagents. This single mixing mode is difficult to ensure the effective and pure separation of target components. On the one hand, although stirring can promote the contact between samples and reagents, it is limited by the mixing efficiency and uniformity. Many target components may still be tightly wrapped inside the sample or tightly combined with other impurities, making it difficult to completely release and separate. On the other hand, the mixed liquid often contains insoluble components. These components may be extracted by the pipette together with the target components during the stirring process, thereby introducing additional impurity interference, which seriously affects the accuracy of subsequent detection.

[0008] (2) Single detection methods make it difficult to cope with the increasingly complex and ever-changing challenges of food safety. With the rapid development of the food industry and the increasing variety of food, food safety issues are becoming more complex and diverse. From traditional additives and pesticide residues to emerging heavy metal pollution and biological toxins, each harmful substance requires a specific detection method to be accurately identified and quantified. However, existing food safety testing equipment often has a single detection method and lacks sufficient flexibility and adaptability. In order to achieve comprehensive testing of different types of food, testing agencies have to be equipped with a variety of testing equipment, which not only greatly increases the testing cost, but also seriously reduces the testing efficiency, making the testing process cumbersome and lengthy. Summary of the invention

[0009] The technical problem to be solved by the present invention is to provide a food safety detection device and a detection method with high automation, good soaking and purification effects, high detection accuracy and integration of multiple detection means.

[0010] In order to solve the above technical problems, the present invention provides a technical solution, a food safety detection device, at least comprising:

[0011] A sampling mechanism, wherein the sampling mechanism is provided with a sampling table for accommodating a sample container and moving the sample container storing the sample to be tested to a detection area;

[0012] A multi-station turntable device, wherein the multi-station turntable device is provided with a plurality of first containing parts for containing sample containers;

[0013] A centrifugal device, comprising a rotating frame and a first driving mechanism for driving the rotating frame to rotate, wherein the rotating frame is provided with a plurality of second containing parts for containing sample containers at intervals around its rotation center axis;

[0014] a first transport mechanism, the first transport mechanism being used for transferring the sample container between the sampling mechanism, the multi-station turntable device and the centrifugal device, the sampling table of the sampling mechanism, the first containing part of the multi-station turntable device and the second containing part of the centrifugal device being located within the travel range of the free end of the first transport mechanism;

[0015] A detection device, wherein the detection device is provided with a plurality of third containing parts for containing detection containers, at least one fourth containing part for containing colloidal gold detection cards, at least one first image acquisition device matched with the third containing part for acquiring an image of the detection liquid in the detection container, and a second image acquisition device matched with the fourth containing part for acquiring an image of the colloidal gold detection card;

[0016] A reagent adding device arranged corresponding to the first holding part of the multi-station turntable device and the third holding part of the detection device, used to add reagents to a sample container located on the first holding part for storing a sample to be tested to form a first sample, and used to add reagents to a detection container located on the third holding part for storing an extract to form a second sample;

[0017] An extraction mechanism, the extraction mechanism comprising a manipulator and a liquid transfer gun installed at the free end of the manipulator, the manipulator is used to drive the liquid transfer gun to extract a first sample in a sample container of the first holding part, and transport the extraction liquid to a detection container in the third holding part or a colloidal gold detection card in the fourth holding part, and to extract a second sample in the third holding part, and transport the extraction liquid to the colloidal gold detection card in the fourth holding part, the first holding part, the third holding part and the fourth holding part are located within the travel range of the free end of the manipulator;

[0018] A control system is electrically connected to the sampling mechanism, the multi-station turntable device, the centrifugal device, the first transport mechanism, the detection device, the reagent adding device and the extraction mechanism, and is used to control the detection of the sample to be detected.

[0019] In a preferred embodiment, the multi-station turntable device is provided with at least one first weighing device adapted to the first containing part, for detecting the mass of the reagent added by the reagent adding device to the sample container located in the first containing part;

[0020] The detection device is provided with at least one second weighing device adapted to the third containing part, and used for detecting the mass of the reagent added by the reagent adding device to the detection container located in the third containing part.

[0021] In a preferred embodiment, the multi-station turntable device is provided with at least one first vibration device adapted to the first containing portion, for mixing the sample to be tested and the reagent in the sample container;

[0022] The detection device is provided with at least one second vibration device adapted to the third containing portion, and used for mixing the extract and the reagent in the detection container.

[0023] In a preferred embodiment, the detection device comprises a first feeding mechanism for loading and supplying colloidal gold detection cards, wherein the first feeding mechanism comprises:

[0024] A first rotating disk, wherein the first rotating disk is provided with a plurality of first material boxes for accommodating colloidal gold detection cards at intervals along a circumferential direction, and slots 1 corresponding to the first material boxes and accommodating the colloidal gold detection cards to fall one by one;

[0025] A first fixing plate, the first fixing plate is located below the first rotating disk and is provided with a groove 1 extending inward from an edge and matching with the slot 1;

[0026] A second driving mechanism, wherein an output end of the second driving mechanism is fixedly connected to the first rotating disk, and is used for driving the first rotating disk to rotate relative to the first fixing plate.

[0027] In a preferred embodiment, the first feeding mechanism further comprises:

[0028] A movable plate, the movable plate being matched with the first groove, and a second slot hole for accommodating the colloidal gold test card passing through is arranged at one end of the movable plate away from the central axis of rotation of the first turntable;

[0029] A slide groove, the slide groove is installed below the movable plate, the fourth containing portion is arranged at one end of the slide groove away from the central axis of rotation of the first turntable, and a sliding portion matching the bottom of the second slot hole is arranged at the top of the other end;

[0030] The movable plate has a first state in which the second slot hole is located inside the first groove and communicates with the first slot hole, and a second state in which the second slot hole is located outside the groove and is misaligned with the first slot hole and communicates with the fourth containing portion;

[0031] a sixth driving mechanism, wherein an output end of the sixth driving mechanism is fixedly connected to the movable plate, and the sixth driving mechanism is used to drive the movable plate to switch between the first state and the second state;

[0032] The movable plate switches from the second state to the first state, and the sixth driving mechanism drives the movable plate to move along the fourth containing portion toward the first slot until the second slot is connected to the first slot, and the colloidal gold detection card passes through the first slot and enters the second slot, and the bottom of the colloidal gold detection card contacts the sliding portion;

[0033] The movable plate switches from the first state to the second state, and the sixth driving mechanism drives the movable plate to move along the slot hole 1 toward the fourth containing part, and drives the colloidal gold detection card to slide along the sliding part through the slot hole 2 until the slot hole 2 is connected with the fourth containing part, and the colloidal gold detection card passes through the slot hole 2 and enters the fourth containing part.

[0034] In a preferred embodiment, the slide groove includes a bottom wall and side walls formed by extending upward from the edges of both sides of the bottom, the tops of the side walls on both sides of the end of the slide groove away from the third containing part extend inward to form a gap groove and the sliding part, a second channel connected to the fourth containing part for accommodating the colloidal gold test card to pass through is formed between the sliding part and the bottom wall, and the bottom wall is provided with a drop opening at one end of the sliding part;

[0035] The movable plate protrudes downward from the edge of the second slot away from the rotation center axis of the first turntable to form a stopper matched with the gap slot;

[0036] The movable plate switches from the second state to the first state, and the sixth driving mechanism drives the movable plate to move along the fourth containing part toward the direction of the slot one, and drives the colloidal gold detection card located in the fourth containing part to slide along the second channel and pass through the drop opening through the block.

[0037] In a preferred embodiment, the detection device further includes an unsealing mechanism, which includes a mounting frame whose free end extends to above the third containing portion, an unsealing knife installed on the free end of the mounting frame, and a tenth driving mechanism, wherein the unsealing knife has a sixth state in which the tip of the knife is located above the third containing portion, and a seventh state in which the tip of the knife extends into the third containing portion and abuts against the colloidal gold detection card, and the tenth driving mechanism is used to drive the unsealing knife to switch between the sixth state and the seventh state.

[0038] The present invention also provides a food safety detection device detection method, which uses the food safety detection device to detect a sample to be detected, comprising the following steps:

[0039] Step S1, setting the parameters of the sample to be tested, wherein the parameters of the sample to be tested include the type and quality of the sample to be tested;

[0040] Step S2, setting the detection type, the detection type includes a first sample detection and a second sample detection, the second sample detection includes a reagent detection and a colloidal gold detection card detection;

[0041] Step S3, based on the sample parameters and the detection type, determining the reagent addition parameters and the type of colloidal gold detection card, wherein the reagent addition parameters include the type, temperature and addition amount of the reagent;

[0042] Step S4, based on the parameters of the sample to be tested preset in step S1, the state of the sample to be tested in the sample container of the sampling station is judged, if it meets the detection requirements, step S5 is performed, otherwise an early warning is issued;

[0043] Step S5, controlling the first transport mechanism to transport the sample container located at the sampling station to the first containing portion of the multi-station turntable device, and based on the reagent adding parameter, controlling the reagent adding device to add reagent to the sample to be tested in the sample container to form a first sample;

[0044] Step S6, controlling the extraction mechanism to extract the first sample in the sample container of the first containing portion, and transporting the extraction liquid to the detection device, and performing corresponding detection on the extraction liquid based on the detection type preset in step S2.

[0045] In a preferred embodiment, step S5 specifically includes the following steps:

[0046] Step S501, controlling the first transport mechanism to transport the sample container located on the sampling station to the first containing portion of the multi-station turntable device;

[0047] Step S502, controlling the multi-station turntable device to transport the sample container to the reagent adding station, and controlling the reagent adding device to add reagent to the sample container located at the reagent adding station based on the reagent adding parameter;

[0048] Step S503, controlling the reagent adding device to transport the sample container to the reagent mixing station, and controlling the first vibrating device to mix the sample to be tested in the sample container with the reagent to form a first sample.

[0049] In a preferred embodiment, step S6 specifically comprises the following steps:

[0050] Step S601, based on the sample parameters and the detection type, determine the transport position in the sample container. If centrifugation is performed, proceed to step S602; if not, proceed to step S604;

[0051] Step S602, controlling the first transport mechanism to transport the sample container located in the first containing part to the second containing part of the centrifugal device, and controlling the centrifugal device to perform a centrifugal operation on the sample container located in the second containing part;

[0052] Step S603, controlling the first transport mechanism to transport the sample container located in the second containing part to the first containing part of the multi-station turntable device;

[0053] Step S604, controlling the multi-station turntable device to transport the sample container to the extraction station;

[0054] Step S605, controlling the extraction mechanism to extract the first sample in the sample container, and transporting the extraction liquid to the detection device to perform corresponding detection on the extraction liquid.

[0055] In a preferred embodiment, step S605 specifically includes the following steps:

[0056] Step S6051, controlling the extraction mechanism to extract the first sample in the sample container of the first containing part through the liquid transfer gun;

[0057] Step S6052, controlling the extraction mechanism to transport the extraction liquid to the colloidal gold detection card located in the fourth containing part of the detection device through the liquid transfer gun;

[0058] Step S6053, control the second image acquisition device to acquire the image of the colloidal gold detection card, and the detection is completed.

[0059] In a preferred embodiment, step S605 specifically includes the following steps:

[0060] Step S6051, controlling the extraction mechanism to extract the first sample in the sample container of the first containing part through the liquid transfer gun;

[0061] Step S6052, controlling the extraction mechanism to transport the extraction liquid to the detection container located in the third containing part of the detection device through the liquid transfer gun;

[0062] Step S6053, controlling the reagent adding device to add a corresponding reagent into the detection container located in the third containing portion, and mixing the extracting liquid and the reagent to form a second sample through the second vibrating device;

[0063] Step S6054, controlling the first image acquisition device to acquire an image of a second sample in the detection container, and the detection is completed.

[0064] In a preferred embodiment, step S605 specifically includes the following steps:

[0065] Step S6051, controlling the extraction mechanism to extract the first sample in the sample container of the first containing part through the liquid transfer gun;

[0066] Step S6052, controlling the extraction mechanism to transport the extraction liquid to the detection container located in the third containing part of the detection device through the liquid transfer gun;

[0067] Step S6053, controlling the reagent adding device to add the corresponding reagent into the detection container located in the third containing portion, and using the second vibrating device to make the extract and the reagent form a second sample;

[0068] Step S6054, controlling the extraction mechanism to extract the second sample through the pipette gun, and transporting the extraction liquid to the colloidal gold detection card in the fourth containing part of the detection device;

[0069] Step S6055, control the second image acquisition device to acquire the image of the colloidal gold detection card, and the detection is completed.

[0070] Compared with the prior art, the food safety detection equipment and detection method of the present invention have the following beneficial effects:

[0071] (1) The food safety testing equipment of the present invention comprises at least a sampling mechanism, a multi-station turntable device, a centrifugal device, a first transport mechanism, a testing device, a reagent adding device and an extraction mechanism. The sampling mechanism is used to judge the state of the sample to be tested to ensure that the type and quality of the sample to be tested meet the preset testing parameters; the multi-station turntable device is used to fully mix the sample to be tested with the reagent; the centrifugal device is used to centrifuge the mixed first sample to separate the solid residue and the supernatant containing the target analyte in preparation for the subsequent extraction and testing steps; the first transport mechanism is used to transport the sample to be tested between the sampling mechanism, the multi-station turntable device and the centrifugal device to ensure the smooth flow of the sample to be tested in the testing process while avoiding contamination and loss; the reagent adding device can accurately control the type, amount and timing of adding the reagent to ensure the accuracy of the test result; the extraction mechanism is responsible for extracting the target analyte from the first sample and the second sample for use by the testing device; the testing device is provided with a plurality of third containers for accommodating the testing containers The detection device comprises a first image acquisition device matched with the third holding part for acquiring the image of the detection liquid in the detection container, and a second image acquisition device matched with the fourth holding part for acquiring the image of the colloidal gold detection card. The detection device is equipped with a variety of holding parts. The second sample can be detected in a traditional detection container by the first image acquisition device, and the colloidal gold detection card to which the extract of the first sample or the extract of the second sample is added can be detected by the second image acquisition device in the colloidal gold detection card. The detection methods are diversified. By flexibly replacing different types of colloidal gold detection cards and reagents, accurate detection of various harmful substances can be achieved, thereby fully meeting various complex and changeable detection needs and significantly improving the flexibility and adaptability of food safety detection equipment. The food safety testing equipment of the present invention integrates multiple functional modules such as sampling of test samples, adding reagents, mixing reagents and test samples, centrifugal operation, extraction of extracts and testing, and realizes a fully automated process from processing test samples to output of test results. It integrates multiple steps that originally required manual intervention into an automated process, greatly improves detection efficiency, reduces human errors, and provides strong technical support for food safety monitoring.

[0072] (2) In a food safety testing device of the present invention, the multi-station turntable device is provided with at least one first weighing device adapted to the first holding part, which is used to detect the mass of the reagent added by the reagent adding device to the sample container located in the first holding part. The mass of the added reagent is accurately measured by the first weighing device to ensure that the mass of the reagent meets the testing requirements, thereby avoiding the testing error caused by insufficient or excessive mass of the added reagent. The testing device is provided with at least one second weighing device adapted to the third holding part, which is used to detect the mass of the reagent added by the reagent adding device 6 to the testing container located in the third holding part. The mass of the added reagent is accurately measured by the second weighing device to ensure that the mass of the reagent meets the testing requirements, thereby avoiding the testing error caused by insufficient or excessive mass of the added reagent.

[0073] (3) A food safety detection device of the present invention, the multi-station turntable device is provided with at least one first vibration device adapted to the first holding part for mixing the sample to be tested and the reagent in the sample container. Through the first vibration device, the sample to be tested and the reagent are fully mixed, replacing the original step of manual stirring and mixing. On the one hand, the efficiency is high, and on the other hand, the mixing effect is good. The detection device is provided with at least one second vibration device adapted to the third holding part for mixing the extract and the reagent. Through the second vibration device, the extraction liquid and the reagent are mixed, and the detection accuracy is improved. The food safety detection device of the present invention also includes a centrifugal device, which can further promote the uniform mixing of the sample and the reagent to form the first sample through the centrifugal force generated by high-speed rotation, and help to separate unnecessary impurities or precipitates. On the one hand, it helps the first sample to form a specific physical state and purity, and on the other hand, the centrifugal process also helps to improve the uniformity of the first sample, which is beneficial to improve the subsequent purification effect.

[0074] (4) A food safety detection device of the present invention, the first feeding mechanism of the detection device includes a first turntable, a first fixed plate, a first driving mechanism, a movable plate, a slide groove and a second driving mechanism. On the one hand, different colloidal gold detection cards, such as enrofloxacin detection cards, clothianidin detection cards and aflatoxin detection cards, can be loaded through different first material boxes on the first turntable, so as to achieve accurate detection of multiple harmful substances, greatly broaden its application scope and meet the complex and changeable food safety detection scenarios; on the other hand, the movable plate switches from the second state to the first state, and the second driving mechanism drives the movable plate to move along the third state. The holding part moves toward the direction of slot one until slot two is connected with slot one, and the colloidal gold detection card passes through slot one into slot two and the bottom contacts the sliding part; the movable plate switches from the first state to the second state, and the second driving mechanism drives the movable plate to move along slot one toward the direction of the third holding part, and drives the colloidal gold detection card to slide along the sliding part through slot two until slot two is connected with the third holding part, and the colloidal gold detection card passes through slot two into the third holding part, thereby realizing the one-by-one and orderly supply of the colloidal gold detection cards, which not only avoids the waste and confusion of the detection cards, but also greatly improves the detection efficiency and accuracy.

[0075] (5) A food safety detection device of the present invention, the detection device also includes an unsealing mechanism, the unsealing mechanism includes a mounting frame with a free end extending to the top of the third containing part, an unsealing knife installed on the free end of the mounting frame, and a tenth driving mechanism, the unsealing knife has a sixth state in which the tip of the knife is located above the third containing part, and a seventh state in which the tip of the knife extends into the third containing part and abuts against the colloidal gold detection card, and the tenth driving mechanism is used to drive the unsealing knife to switch between the sixth state and the seventh state. Considering that colloidal gold detection cards are usually packaged independently with thin films to maintain their sensitivity and accuracy. Therefore, it is particularly important to unseal each detection card efficiently and accurately during use. The unsealing mechanism of the utility model is designed to solve this problem. On the one hand, the unsealing knife is driven by the ninth driving mechanism to switch between the sixth state and the seventh state, thereby realizing automatic unsealing of the colloidal gold detection card and greatly improving the detection efficiency; on the other hand, through the automatic and accurate unsealing process, the integrity and cleanliness of the colloidal gold detection card before use are ensured, thereby ensuring the accuracy of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] Figure 1 It is a schematic diagram of the overall structure of a food safety detection device embodiment of the present invention without the box body;

[0077] Figure 2 It is a structural schematic diagram of another angle of the overall mechanism of a food safety detection device embodiment of the present invention without the box body;

[0078] Figure 3It is a schematic diagram of the overall structure of a food safety detection device embodiment of the present invention with part of the side panels removed;

[0079] Figure 4 It is a schematic diagram of the installation structure of a sample container supply mechanism and a box body of an embodiment of a food safety detection device of the present invention;

[0080] Figure 5 A schematic diagram of the structure of a sample container supply mechanism of an embodiment of a food safety detection device of the present invention;

[0081] Figure 6 A schematic diagram of the structure of a sampling mechanism of an embodiment of a food safety detection device of the present invention;

[0082] Figure 7 It is a structural schematic diagram of a multi-station turntable device of an embodiment of a food safety detection device of the present invention;

[0083] Figure 8 A schematic diagram of the structure of a second turntable of a multi-station turntable device of an embodiment of a food safety detection device of the present invention;

[0084] Fig. 9 It is a schematic diagram of the installation structure of the first feeding mechanism and the second installation plate of an embodiment of a food safety detection device of the present invention;

[0085] Fig.10 It is a schematic diagram of the structure of a first turntable of an embodiment of a food safety detection device of the present invention;

[0086] Fig.11 It is a schematic structural diagram of a first fixing plate of an embodiment of a food safety detection device of the present invention;

[0087] Fig.12 It is a schematic diagram of the installation structure of a moving plate, a slide slot and an unsealing mechanism of an embodiment of a food safety detection device of the present invention;

[0088] Fig.13 A schematic diagram of a chute structure of a food safety detection device embodiment of the present invention;

[0089] Fig.14 A schematic diagram of the structure of a moving plate of an embodiment of a food safety detection device of the present invention;

[0090] Fig.15 It is a schematic diagram of the installation structure of the second installation plate and the third rotating disk of an embodiment of a food safety detection device of the present invention;

[0091] Fig.16 It is a structural schematic diagram of an extraction mechanism of an embodiment of a food safety detection device of the present invention;

[0092] Fig.17 A schematic diagram of the installation structure of a manipulator and a pipette gun of an embodiment of a food safety detection device of the present invention;

[0093] Fig.18 It is a structural schematic diagram of a clamping claw of an embodiment of a food safety detection device of the present invention;

[0094] Fig.19 It is a schematic diagram of the structure of a pipette in the prior art.

[0095] Description of reference numerals:

[0096] 1-sampling mechanism; 11-sampling platform; 12-fourth driving mechanism;

[0097] 2-multi-station turntable device; 21-first containing part; 211-slot hole four; 22-first weighing device; 23-first vibration device; 24-second turntable; 25-fifth driving mechanism;

[0098] 3-centrifugal device; 31-rotating frame; 311-second containing part; 32-first driving mechanism;

[0099] 4- The first transport mechanism;

[0100] 5-detection device; 51-first image acquisition device; 52-second image acquisition device; 53-first feeding mechanism; 531-first turntable; 5311-first material box; 5312-slot hole 1; 532-first fixed plate; 5321-groove 1; 5322-bracket; 533-second driving mechanism; 534-movable plate; 5341-slot hole 2; 5342-block; 535-slide; 5351-fourth containing part; 53511-give way slot; 5352-sliding part; 5353-bottom wall; 5354-side wall; 5355-gap slot; 5356-second channel; 5357-dropping port; 536-sixth driving mechanism; 54-unsealing mechanism; 541-mounting frame; 542-unsealing knife; 543-tenth driving mechanism; 55-third rotating disk; 551-slot hole five; 552-third containing part; 553-second weighing device; 554-second vibration device; 56-seventh driving mechanism;

[0101] 6-reagent adding device; 61-reagent kit; 62-metering pump;

[0102] 7-extracting mechanism; 71-manipulator; 711-mounting seat; 712-sliding plate; 7121-second positioning sensor; 713-eighth driving mechanism; 714-claw; 7141-mounting part; 7142-positioning part; 7143-first pressing part; 7144-second pressing part; 715-ninth driving mechanism; 72-pipette gun; 73-second feeding mechanism; 74-second transporting mechanism;

[0103] 8-box; 81-frame; 82-side plate; 83-first mounting plate; 84-second mounting plate; 841-slot six; 85-third mounting plate; 86-container window; 87-sampling window;

[0104] 9-sample container supply mechanism; 91-material box; 911-first channel; 912-slot hole three; 913-baffle; 92-third driving mechanism; 93-first positioning sensor;

[0105] 101-Colloidal gold test card;

[0106] 102-Sample container. DETAILED DESCRIPTION

[0107] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0108] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0109] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0110] Embodiment 1

[0111] A food safety detection device of this embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, it at least includes a sampling mechanism 1, a multi-station turntable device 2, a centrifugal device 3, a first transport mechanism 4, a detection device 5, a reagent adding device 6, an extraction mechanism 7, a box 8, a sample container supply mechanism 9 and a control system. The control system is electrically connected to the sampling mechanism, the multi-station turntable device, the centrifugal device, the first transport mechanism, the detection device, the reagent adding device, the extraction mechanism, the box and the sample container supply mechanism, and is used to control the detection of the sample to be tested.

[0112] In this embodiment, Figure 3 As shown, the box body 8 includes a frame 81, a plurality of side plates 82 mounted on the frame, and a first mounting plate 83, a second mounting plate 84 and a third mounting plate 85 mounted in the box body. The side plates 82 enclose a detection area, and the box body is provided with a container window 86 corresponding to the sample container supply mechanism 9 and a sampling window 87 corresponding to the sampling mechanism 1.

[0113] like Figure 4 As shown, the sample container supply mechanism 9 includes a material box 91 fixedly connected to the third mounting plate 85, and a third driving mechanism 92. The material box is provided with a first channel 911 for accommodating the sample containers 102 to pass through in sequence and communicating with the container window 86. Figure 5 As shown, a slot hole 3 912 and a baffle 913 matched with the slot hole 3 are provided in the second channel. The output end of the third driving element 92 is fixedly connected to the baffle 913, and is used to drive the baffle to move relative to the slot hole 3. In this embodiment, the sample container supply mechanism 9 is provided with a first positioning sensor 93 along the moving direction of the baffle 913. Through the first positioning sensor, the third driving mechanism 92 drives the baffle to move relative to the slot hole 3, thereby realizing the connection and closing of the first channel, so that the sample containers 102 fall into the container window 86 one by one.

[0114] Through the precise control of the baffle, the contamination of the sample container by external dust or impurities is effectively avoided, ensuring the cleanliness of the sample before detection, laying a solid foundation for subsequent accurate detection. The tacit cooperation between the third driving mechanism and the baffle realizes the sequential and orderly dropping of the sample container, avoiding the detection error caused by the accumulation or confusion of the sample container 102, and improving the accuracy and reliability of the detection.

[0115] like Figure 6 As shown, the sampling mechanism 1 includes a sampling platform 11 adapted to the sampling window 87 of the box 8 for accommodating a sample container 102, and a fourth driving mechanism 12 for driving the sampling platform to move relative to the sampling window. A third weighing device adapted to the bottom of the sample container 102 is provided at the bottom of the sampling platform for detecting the mass of the sample to be tested in the sample container. After the operator obtains the sample container 102 at the container window 86, the sample to be tested is placed in the sample container, and the sample container is placed on the sampling platform, and the quality is tested by the third weighing device, and the test result is sent to the control system. If the mass of the sample to be tested is within the preset sample parameter range, the test requirements are met, and the control system controls the fourth driving mechanism to drive the sampling platform 11 to transport the sample container storing the sample to be tested to the test area, otherwise an early warning is issued. The mass of the sample to be tested is accurately measured by the third weighing device to ensure that the amount of the sample to be tested meets the test requirements, thereby avoiding the detection error caused by insufficient or excessive amount of the sample to be tested.

[0116] like Figure 7 and Figure 8 As shown, the multi-station turntable device 2 at least includes a second turntable 24 rotatably connected to the third mounting plate 83, and a fifth driving mechanism 25 for driving the second turntable to rotate relative to the third mounting plate. The second turntable is provided with a plurality of first holding parts 21 for accommodating sample containers at intervals around its rotation center axis, and a slot hole 211 is provided at the bottom of the first holding part; at least one first weighing device 22 adapted to the slot hole 211 and fixedly connected to the third mounting plate is provided at the bottom of the first holding part, which is used to detect the mass of the reagent added by the reagent adding device to the sample container located in the first holding part. The mass of the added reagent is accurately measured by the first weighing device to ensure that the mass of the reagent meets the detection requirements, and the detection error caused by insufficient or excessive mass of the added reagent is avoided. At least one first vibration device 23 adapted to the slot hole 211 and fixedly connected to the third mounting plate is provided at the bottom of the first holding part, which is used to mix the sample to be tested and the reagent in the sample container. The station where the first vibration device is provided in the multi-station turntable device 2 is a mixing station. The first vibration device can effectively promote the full mixing of the sample to be tested and the reagent in the sample container, thereby achieving uniform distribution among the components, completely abandoning the tedious steps of traditional manual stirring. The adoption of such a structural design not only significantly improves work efficiency, but also ensures the excellence of the mixing effect, laying a solid foundation for accurate detection.

[0117] like Figure 1 and Figure 2 As shown, the centrifugal device 3 includes a rotating frame 31 and a first driving mechanism 32 for driving the rotating frame to rotate. The rotating frame is provided with a plurality of second holding parts 311 for accommodating sample containers at intervals around its central axis of rotation. The centrifugal force generated by high-speed rotation can further promote the uniform mixing of the sample to be tested and the reagent, and help to separate unnecessary impurities or sediments. On the one hand, it helps the first sample to form a specific physical state and purity. On the other hand, the centrifugal process also helps to improve the uniformity of the first sample, which is beneficial to improve the subsequent purification effect.

[0118] like Figure 1 and Figure 2As shown, the first transport mechanism 4 is used for transferring the sample container 102 between the sampling mechanism 1, the multi-station turntable device 2 and the centrifugal device. The sampling table 11 of the sampling mechanism, the first holding part 21 of the multi-station turntable device and the second holding part 311 of the centrifugal device are located within the travel range of the free end of the first transport mechanism. Through the first transport mechanism, the smooth flow of the sample to be tested in the detection process is ensured, the intervention of manual operation is reduced, and the automation degree of the entire detection process is improved. This automation not only improves work efficiency, but also reduces the possibility of human error, and ensures the accuracy and consistency of the detection results. In this embodiment, the first transport mechanism includes a manipulator for grabbing the sample container 102 and a driving mechanism for driving the manipulator to move. This is a prior art and will not be repeated here. The intervention of manual operation is reduced, and the automation degree of the entire detection process is improved. This automation not only improves work efficiency, but also reduces the possibility of human error, and ensures the accuracy and consistency of the detection results.

[0119] The detection device 5 is provided with a plurality of third containing parts 51 for containing detection containers, at least one fourth containing part 5351 for containing colloidal gold detection cards, at least one first image acquisition device 51 matched with the third containing part for acquiring the image of the detection liquid in the detection container, and a second image acquisition device 52 matched with the fourth containing part for acquiring the image of the colloidal gold detection card. The detection device is equipped with a variety of containing parts, and can detect the detection liquid in a traditional detection container through the first image acquisition device, and can also detect the colloidal gold detection card with the added extraction liquid in the colloidal gold detection card through the second image acquisition device. The detection methods are diversified, and the accurate detection of various harmful substances can be achieved by flexibly replacing different types of colloidal gold detection cards and reagents, thereby fully meeting various complex and changeable detection requirements, and significantly improving the flexibility and adaptability of food safety detection equipment.

[0120] like Fig. 9 As shown, the detection device 5 includes a first feeding mechanism 53 for loading and supplying the colloidal gold detection card 101, and the first feeding mechanism includes a first turntable 531, a first fixed plate 532, a second driving mechanism 533, a moving plate 534, a slide slot 535 and a sixth driving mechanism 536.

[0121] like Fig.10As shown, the first turntable 531 is provided with a plurality of first material boxes 5311 for accommodating colloidal gold detection cards at intervals along the circumferential direction, and slots 5312 corresponding to the first material boxes for accommodating the colloidal gold detection cards to fall one by one. Different colloidal gold detection cards, such as enrofloxacin detection cards, clothianidin detection cards, and aflatoxin detection cards, can be loaded through different first material boxes on the first turntable, so as to achieve accurate detection of multiple harmful substances, greatly broaden its application scope, and meet the complex and changeable food safety detection scenarios.

[0122] like Fig.11 As shown, the first fixing plate 532 is located below the first rotating disk 531 and is provided with a groove 1 5321 extending inward from the edge and matching the slot 1. A plurality of brackets 5322 for installation are provided at the bottom of the first fixing plate.

[0123] In this embodiment, the first fixing plate 532 is fixedly connected to the second mounting plate 84 via a bracket 5322 .

[0124] The output end of the second driving mechanism 533 is fixedly connected to the first rotating disk, and is used to drive the first rotating disk to rotate relative to the first fixed plate.

[0125] like Fig. 9 , Fig.12 and Fig.14 As shown, the movable plate 534 is matched with the groove 1 5321 , and a slot 2 5341 for accommodating the colloidal gold test card 101 to pass through is provided at one end away from the rotation center axis of the first turntable 531 .

[0126] like Fig.13 As shown, the slide 535 is installed below the moving plate, and a fourth containing portion 5351 is provided at one end of the slide away from the central axis of rotation of the first turntable, and a sliding portion 5352 matching the bottom of slot hole 2 is provided at the top of the other end. The moving plate has a first state in which slot hole 2 is located inside groove 1 and is connected to slot hole 1, and a second state in which slot hole 2 is located outside groove 1 and is misaligned with slot hole 1 and is connected to the fourth containing portion. The output end of the sixth driving mechanism 536 is fixedly connected to the moving plate, and the sixth driving mechanism is used to drive the moving plate to switch between the first state and the second state.

[0127] When the movable plate switches from the second state to the first state, the sixth driving mechanism drives the movable plate to move along the fourth containing part toward slot one until slot two is connected with slot one, and the colloidal gold detection card passes through slot one into slot two and the bottom contacts the sliding part.

[0128] When the movable plate switches from the first state to the second state, the sixth driving mechanism drives the movable plate to move along the slot 1 toward the fourth containing part, and drives the colloidal gold detection card to slide along the sliding part through the slot 2 until the slot 2 is connected with the fourth containing part, and the colloidal gold detection card passes through the slot 2 and enters the fourth containing part. The colloidal gold detection cards are supplied one by one and in an orderly manner, which not only avoids the waste and confusion of the detection cards, but also greatly improves the detection efficiency and accuracy.

[0129] like Fig.13 As shown, in this embodiment, the slide groove 535 includes a bottom wall 5353 and side walls 5354 formed by extending upward from the two side edges of the bottom, and the tops of the side walls on both sides of the end of the slide groove away from the fourth containing part extend inward to form a gap groove 5355 and a sliding part 5352. A second channel 5356 connected to the fourth containing part for accommodating the colloidal gold test card is formed between the sliding part and the bottom wall, and a drop opening 5357 is provided on the bottom wall at one end of the sliding part.

[0130] like Fig.14 As shown, in this embodiment, the moving plate 534 protrudes downward at the edge of the second slot hole 5341 away from the rotation center axis of the first turntable to form a stopper 5342 that is compatible with the gap slot 5355.

[0131] When the movable plate switches from the second state to the first state, the sixth driving mechanism drives the movable plate to move along the fourth containing part toward the direction of slot one, and drives the colloidal gold detection card 101 located in the fourth containing part to slide along the second channel and pass through the drop opening through the block.

[0132] Considering that the colloidal gold test card 101 is usually packaged in a film to maintain its sensitivity and accuracy, it is particularly important to unpack each test card efficiently and accurately during use. Fig. 9 and Fig.12As shown, the detection device 5 also includes an unsealing mechanism 54, which includes a mounting frame 541 whose free end extends to the top of the fourth containing part, an unsealing knife 542 installed on the free end of the mounting frame, and a tenth driving mechanism 543; the unsealing knife has a sixth state in which the tip of the knife is located above the third containing part, and a seventh state in which the tip of the knife extends into the third containing part and abuts against the colloidal gold detection card, and the tenth driving mechanism is used to drive the unsealing knife to switch between the sixth state and the seventh state. The embodiment shown in the present invention fully considers the characteristics that the colloidal gold detection card is usually sealed and packaged independently using a film in order to maintain its sensitivity and accuracy. Therefore, it is particularly important to unseal each detection card efficiently and accurately during use. The unsealing mechanism of this embodiment is designed to solve this problem. On the one hand, the unsealing knife is driven by the tenth driving mechanism to switch between the sixth state and the seventh state, so as to realize the automatic unsealing of the colloidal gold detection card and greatly improve the detection efficiency; on the other hand, through the automatic and accurate unsealing process, the integrity and cleanliness of the colloidal gold detection card before use are ensured, thereby ensuring the accuracy of the detection result.

[0133] In this embodiment, the second image acquisition device 52 of the detection device 5 is installed on the mounting frame 541 .

[0134] like Figure 1 and Fig.15 As shown, the detection device 5 also includes a third turntable 55 located above the second mounting plate 84, and a seventh driving mechanism 56 for driving the third turntable to rotate relative to the second mounting plate. The third turntable is provided with a plurality of slot holes 551 spaced around its rotation center axis, and the slot holes 5 and the second mounting plate form a third holding portion 552. The seventh driving mechanism is installed below the second mounting plate, and the output end passes through the second mounting plate and is fixedly connected to the third turntable. At least one second weighing device 553 adapted to the slot hole 551 and fixedly connected to the second mounting plate is provided at the bottom of the third holding portion, which is used to detect the mass of the reagent added by the reagent adding device 6 to the detection container located in the third holding portion. The mass of the added reagent is accurately measured by the second weighing device to ensure that the mass of the reagent meets the detection requirements, and the detection error caused by insufficient or excessive mass of the added reagent is avoided. At least one second vibration device 554 adapted to the slot hole 551 and fixedly connected to the second mounting plate is provided at the bottom of the third holding portion, which is used to mix the extract and the reagent in the detection container. The second vibration device can effectively promote the full mixing of the extract and reagent in the detection container, thereby achieving uniform distribution among the components, completely eliminating the tedious steps of traditional manual stirring. The adoption of such a structural design not only significantly improves work efficiency, but also ensures the excellence of the mixing effect, laying a solid foundation for accurate detection.

[0135] like Figure 1 and Figure 2As shown, the food safety testing equipment of this embodiment also includes a reagent adding device 6 arranged corresponding to the first holding part 21 of the multi-station turntable device 2 and the third holding part 552 of the testing device 5, which is used to add reagents to the sample container located on the first holding part for storing the sample to be tested to form a first sample, and to add reagents to the testing container located on the third holding part for storing the extract to form a second sample.

[0136] In this embodiment, the reagent adding device 6 includes a plurality of reagent kits 61 for storing reagents and metering pumps 62 connected to the reagent kits one by one for transporting reagents. The first output end of the metering pump is located above the first weighing device 22, and is used for adding reagents to the sample container located in the first containing part. The second output end of the metering pump is located above the second weighing device 553, and is used for adding reagents to the detection container located in the third containing part.

[0137] like Fig.16 and Fig.17 As shown, the extraction mechanism 7 includes a manipulator 71 and a pipette 72 installed at the free end of the manipulator. The manipulator is used to drive the pipette to extract the first sample in the sample container located in the first holding part 21, and transport the extract to the detection container located in the third holding part 552 or the colloidal gold detection card located in the fourth holding part 5351, and to extract the second sample located in the third holding part, and transport the extract to the colloidal gold detection card located in the fourth holding part. The first holding part 21, the third holding part 552 and the fourth holding part 5351 are located within the travel range of the free end of the manipulator 71.

[0138] The manipulator 71 of the extraction mechanism 7 comprises:

[0139] A mounting seat 711, which is located above the fourth containing portion 5351;

[0140] A sliding plate 712, which is fixedly connected to the pipette gun 72 and is slidably connected to the mounting seat along the moving direction of the piston rod of the pipette gun. The sliding plate is provided with a plurality of second positioning sensors 7121 at intervals along the sliding direction thereof;

[0141] An eighth driving mechanism 713, the output end of which is fixedly connected to the sliding plate, and is used to drive the sliding plate to slide relative to the mounting seat, thereby driving the liquid transfer gun to move toward the fourth containing portion;

[0142] Claw 714, such as Fig.18As shown, the claw includes a mounting portion 7141 slidably connected to the sliding plate, the sliding direction of the mounting portion is arranged parallel to the sliding direction of the sliding plate, one side of the mounting portion extends outward to form a positioning portion 7142 adapted to the second positioning sensor, and the other side is provided with a first pressing portion 7143 matching the top end of the piston rod of the pipette gun 72, and a second pressing portion 7144 matching the ejection button of the pipette gun;

[0143] The jaws have:

[0144] A third state in which the first pressing portion releases the top end of the pipette piston rod and the second pressing portion releases the ejection button of the pipette;

[0145] A fourth state in which the first pressing portion abuts against the top end of the pipette piston rod and the second pressing portion releases the pipette ejection button;

[0146] A fifth state in which the first pressing portion abuts against the top end of the piston rod of the pipette and the second pressing portion abuts against the ejection button of the pipette;

[0147] The ninth driving mechanism 715, the output end of the ninth driving mechanism is fixedly connected to the claw, and is used to drive the claw to slide relative to the sliding plate, so that the claw switches between the third state, the fourth state and the fifth state.

[0148] like Fig. 9 and Fig.15 As shown, in this embodiment, the fourth containing portion 5351 is located above the third rotating disk 55 and matches the position of the third containing portion 552 . The fourth containing portion is provided with a clearance groove 53511 matching the suction head of the pipette gun 72 .

[0149] like Fig.16 As shown, the extraction mechanism 7 also includes a second feeding mechanism 73 for loading the tips of the pipette 72 and a second transporting mechanism 74 for transferring the tips from the second feeding mechanism to the pipette. The discharge port of the second feeding mechanism 73 and the end of the body of the pipette 72 are located within the travel range of the free end of the second transporting mechanism.

[0150] like Fig.15 As shown, a slot hole six 841 matched with the third holding part 552 is provided at a position of the second mounting plate 84 corresponding to the tip of the pipette gun 72. The tip of the pipette gun 72 can pass through the slot hole six 841 and extend into the first holding part of the multi-station turntable device, thereby extracting the first sample located in the sample container of the first holding part, which is the extraction station of the multi-station turntable device.

[0151] The food safety testing equipment in the embodiment shown in the present invention integrates multiple functional modules for sampling of test samples, adding reagents, mixing reagents and test samples, centrifugal operation, extraction of extracts and testing, realizing a fully automated process from processing test samples to outputting test results, integrating multiple steps that originally required manual intervention into an automated process, greatly improving detection efficiency, reducing human errors, and providing strong technical support for food safety monitoring.

[0152] Embodiment 2

[0153] This embodiment also provides a detection method using the above-mentioned food safety detection device, which specifically includes the following steps:

[0154] Step S1, setting the parameters of the sample to be tested, the parameters of the sample to be tested include the type and quality of the sample to be tested;

[0155] Step S2, setting the detection type, the detection type includes a first sample detection and a second sample detection, the second sample detection includes a reagent detection and a colloidal gold detection card detection;

[0156] Step S3, based on the parameters of the sample to be tested and the detection type, determining the reagent addition parameters and the type of colloidal gold detection card, the reagent addition parameters including the type, temperature and addition amount of the reagent;

[0157] Step S4, based on the parameters of the sample to be tested preset in step S1, the state of the sample to be tested in the sample container of the sampling station 11 is judged, if it meets the detection requirements, step S5 is performed, otherwise an early warning is issued;

[0158] Step S5, controlling the first transport mechanism 4 to transport the sample container located at the sampling station 11 to the first containing portion 21 of the multi-station turntable device 2, and controlling the reagent adding device 6 to add reagent to the sample to be tested in the sample container to form a first sample based on the reagent adding parameter;

[0159] Step S5 specifically includes the following steps:

[0160] Step S501, controlling the first transport mechanism 4 to transport the sample container located at the sampling station 11 to the first containing portion 21 of the multi-station turntable device 2;

[0161] Step S502, controlling the multi-station turntable device 3 to transport the sample container to the reagent adding station, and controlling the reagent adding device 6 to add reagent to the sample container located at the reagent adding station based on the reagent adding parameter;

[0162] Step S503 , controlling the reagent adding device 6 to transport the sample container to the reagent mixing station, and controlling the first vibrating device to mix the sample to be tested in the sample container with the reagent to form a first sample.

[0163] In step S6, the extraction mechanism 7 is controlled to extract the first sample in the sample container of the first containing portion 21, and the extraction liquid is transported to the detection device 5, and the extraction liquid is tested accordingly based on the detection type preset in step S2.

[0164] Step S6 specifically includes the following steps:

[0165] Step S601, based on the parameters of the sample to be tested and the test type, the transport position in the sample container is determined. If a centrifugal operation is performed, step S602 is performed; if a centrifugal operation is not performed, step S604 is performed;

[0166] Step S602, controlling the first transport mechanism 4 to transport the sample container located in the first containing part 21 to the second containing part 311 of the centrifugal device, and controlling the centrifugal device 3 to perform centrifugal operation on the sample container located in the second containing part;

[0167] Step S603, controlling the first transport mechanism to transport the sample container located in the second containing portion to the first containing portion 21 of the multi-station turntable device 2;

[0168] Step S604, controlling the multi-station turntable device 2 to transport the sample container to the extraction station;

[0169] Step S605, controlling the extraction mechanism to extract the first sample in the sample container, and transporting the extraction liquid to the detection device to perform corresponding detection on the extraction liquid.

[0170] There are three detection methods in this embodiment. The first detection method, step S605, specifically includes the following steps:

[0171] Step S6051, controlling the extraction mechanism to extract the first sample in the sample container of the first containing part through the pipette gun;

[0172] Step S6052, controlling the extraction mechanism to transport the extraction liquid to the colloidal gold detection card located in the fourth containing part of the detection device through the liquid transfer gun;

[0173] Step S6053, control the second image acquisition device 52 to acquire the image of the colloidal gold detection card, and the detection is completed.

[0174] The second detection method, step S605, specifically includes the following steps:

[0175] Step S6051, controlling the extraction mechanism to extract the first sample in the sample container of the first containing part through the pipette gun;

[0176] Step S6052, controlling the extraction mechanism to transport the extraction liquid to the detection container located in the third containing part of the detection device through the liquid transfer gun;

[0177] Step S6053, controlling the reagent adding device to add the corresponding reagent into the detection container located in the third containing portion, and using the second vibrating device to make the extract and the reagent form a second sample;

[0178] Step S6054, controlling the first image acquisition device 51 to acquire the second sample image in the detection container, and the detection is completed.

[0179] The third detection method, step S605, specifically includes the following steps:

[0180] Step S6051, controlling the extraction mechanism to extract the first sample in the sample container of the first containing part through the pipette gun;

[0181] Step S6052, controlling the extraction mechanism to transport the extraction liquid to the detection container located in the third containing part of the detection device through the liquid transfer gun;

[0182] Step S6053, controlling the reagent adding device to add the corresponding reagent into the detection container located in the third containing portion, and using the second vibrating device to make the extract and the reagent form a second sample;

[0183] Step S6054, controlling the extraction mechanism to extract the second sample through a pipette, and transporting the extraction liquid to the colloidal gold detection card in the fourth containing part of the detection device;

[0184] Step S6055, control the second image acquisition device 52 to acquire the colloidal gold detection card image, and the detection is completed.

[0185] In short, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A food safety testing device, characterized in that: At least: A sampling mechanism (1), wherein the sampling mechanism is provided with a sampling table (11) for accommodating a sample container and moving the sample container storing the sample to be tested to a detection area; A multi-station turntable device (2), wherein the multi-station turntable device is provided with a plurality of first containing parts (21) for containing sample containers; A centrifugal device (3), comprising a rotating frame (31) and a first driving mechanism (32) for driving the rotating frame to rotate, wherein the rotating frame is provided with a plurality of second containing portions (311) for containing sample containers at intervals around its rotation center axis; A first transport mechanism (4), the first transport mechanism being used for transferring the sample container between the sampling mechanism (1), the multi-station turntable device (2) and the centrifugal device (3), the sampling table (11) of the sampling mechanism, the first containing part (21) of the multi-station turntable device and the second containing part (311) of the centrifugal device being located within the travel range of the free end of the first transport mechanism; A detection device (5), the detection device being provided with a plurality of third containing parts (552) for containing detection containers, at least one fourth containing part (5351) for containing colloidal gold detection cards, at least one first image acquisition device (51) matched with the third containing part for acquiring an image of a detection liquid in the detection container, and a second image acquisition device (52) matched with the fourth containing part for acquiring an image of a colloidal gold detection card; a reagent adding device (6) arranged corresponding to the first containing part (21) of the multi-station turntable device (2) and the third containing part (552) of the detection device (5), used for adding reagents to a sample container located on the first containing part for storing a sample to be detected to form a first sample, and for adding reagents to a detection container located on the third containing part for storing an extract to form a second sample; An extraction mechanism (7), the extraction mechanism comprising a manipulator (71) and a pipette (72) mounted on the free end of the manipulator, the manipulator being used to drive the pipette to extract a first sample in a sample container located in the first holding portion (21), and to transport the extraction liquid to a detection container located in the third holding portion or to a colloidal gold detection card located in the fourth holding portion, and to extract a second sample located in the third holding portion, and to transport the extraction liquid to a colloidal gold detection card located in the fourth holding portion, the first holding portion (21), the third holding portion (552) and the fourth holding portion (5351) being located within the travel range of the free end of the manipulator (71); A control system, wherein the control system is electrically connected to the sampling mechanism (1), the multi-station turntable device (2), the centrifugal device (3), the first transport mechanism (4), the detection device (5), the reagent adding device (6) and the extraction mechanism (7), and is used to control the detection of the sample to be detected.

2. A food safety testing device according to claim 1, characterized in that: The multi-station turntable device (2) is provided with at least one first weighing device (22) adapted to the first containing part, and used for detecting the mass of the reagent added by the reagent adding device (6) to the sample container located in the first containing part; The detection device (5) is provided with at least one second weighing device (553) adapted to the third containing portion, and used for detecting the mass of the reagent added by the reagent adding device (6) to the detection container located in the third containing portion.

3. A food safety testing device according to claim 1 or 2, characterized in that: The multi-station turntable device (2) is provided with at least one first vibration device (23) adapted to the first containing portion, and used for mixing the sample to be tested and the reagent in the sample container; The detection device (5) is provided with at least one second vibration device (554) adapted to the third containing portion and used for mixing the extract and the reagent in the detection container.

4. A food safety testing device according to claim 3, characterized in that: The detection device (5) comprises a first feeding mechanism (53) for loading and supplying colloidal gold detection cards, wherein the first feeding mechanism comprises: A first rotating disk (531), wherein the first rotating disk is provided with a plurality of first material boxes (5311) for accommodating colloidal gold detection cards at intervals along a circumferential direction, and slots (5312) corresponding one by one to the first material boxes for accommodating the colloidal gold detection cards to fall one by one; A first fixing plate (532), the first fixing plate is located below the first rotating disk and is provided with a groove 1 (5321) extending inward from an edge and matching the slot 1; A second driving mechanism (533), wherein an output end of the second driving mechanism is fixedly connected to the first rotating disk and is used to drive the first rotating disk to rotate relative to the first fixed plate.

5. A food safety testing device according to claim 4, characterized in that: The first feeding mechanism (53) further comprises: A movable plate (534), the movable plate being adapted to the first groove, and a second slot (5341) for accommodating a colloidal gold test card passing therethrough is provided at one end of the movable plate away from the central axis of rotation of the first turntable; A slide groove (535), the slide groove is installed below the movable plate, the fourth containing portion (5351) is arranged at one end of the slide groove away from the central axis of rotation of the first turntable, and a sliding portion (5352) matching the bottom of the second slot hole is arranged at the top of the other end; The movable plate has a first state in which the second slot hole is located inside the first groove and communicates with the first slot hole, and a second state in which the second slot hole is located outside the groove and is misaligned with the first slot hole and communicates with the fourth containing portion; a sixth driving mechanism (536), wherein an output end of the sixth driving mechanism is fixedly connected to the movable plate, and the sixth driving mechanism is used to drive the movable plate to switch between the first state and the second state; The movable plate switches from the second state to the first state, and the sixth driving mechanism drives the movable plate to move along the fourth containing portion toward the first slot until the second slot is connected to the first slot, and the colloidal gold detection card passes through the first slot and enters the second slot, and the bottom of the colloidal gold detection card contacts the sliding portion; The movable plate switches from the first state to the second state, and the sixth driving mechanism drives the movable plate to move along the slot hole 1 toward the fourth containing part, and drives the colloidal gold detection card to slide along the sliding part through the slot hole 2 until the slot hole 2 is connected with the fourth containing part, and the colloidal gold detection card passes through the slot hole 2 and enters the fourth containing part.

6. A food safety testing device according to claim 5, characterized in that: The slide groove (535) includes a bottom wall (5353) and side walls (5354) formed by extending upward from the edges of both sides of the bottom. The tops of the side walls on both sides of the end of the slide groove away from the third containing part extend inward to form a gap groove (5355) and the sliding part (5352). A second channel (5356) connected to the fourth containing part for accommodating the colloidal gold test card to pass through is formed between the sliding part and the bottom wall. The bottom wall is provided with a drop-off opening (5357) at one end of the sliding part. The movable plate protrudes downward at the edge of the second slot hole (5341) away from the rotation center axis of the first turntable to form a stopper (5342) adapted to the gap slot; The movable plate switches from the second state to the first state, and the sixth driving mechanism drives the movable plate to move along the fourth containing part toward the direction of the slot one, and drives the colloidal gold detection card located in the fourth containing part to slide along the second channel and pass through the drop opening through the block.

7. A food safety testing device according to claim 6, characterized in that: The detection device (5) also includes an unsealing mechanism (54), which includes a mounting frame (541) whose free end extends to above the third containing portion, an unsealing knife (542) installed on the free end of the mounting frame, and a tenth driving mechanism (543), wherein the unsealing knife has a sixth state in which the tip of the knife is located above the third containing portion, and a seventh state in which the tip of the knife extends into the third containing portion and abuts against the colloidal gold detection card, and the tenth driving mechanism is used to drive the unsealing knife to switch between the sixth state and the seventh state.

8. A detection method applied to the food safety detection device according to any one of claims 1 to 7, characterized in that: The steps include: Step S1, setting the parameters of the sample to be tested, wherein the parameters of the sample to be tested include the type and quality of the sample to be tested; Step S2, setting the detection type, the detection type includes a first sample detection and a second sample detection, the second sample detection includes a reagent detection and a colloidal gold detection card detection; Step S3, based on the sample parameters and the detection type, determining the reagent addition parameters and the type of colloidal gold detection card, wherein the reagent addition parameters include the type, temperature and addition amount of the reagent; Step S4, based on the parameters of the sample to be tested preset in step S1, the state of the sample to be tested in the sample container of the sampling station (11) is judged, and if it meets the detection requirements, step S5 is performed, otherwise an early warning is issued; Step S5, controlling the first transport mechanism (4) to transport the sample container located on the sampling station (11) to the first containing portion (21) of the multi-station turntable device (2), and based on the reagent adding parameter, controlling the reagent adding device (6) to add a reagent to the sample to be tested in the sample container to form a first sample; Step S6, controlling the extraction mechanism (7) to extract the first sample in the sample container of the first containing portion (21), and transporting the extraction liquid to the detection device, and performing corresponding detection on the extraction liquid based on the detection type preset in step S2.

9. A detection method for food safety detection equipment according to claim 8, characterized in that: The step S5 specifically includes the following steps: Step S501, controlling the first transport mechanism (4) to transport the sample container located on the sampling table (11) to the first containing portion (21) of the multi-station turntable device (2); Step S502, controlling the multi-station turntable device (3) to transport the sample container to the reagent adding station, and controlling the reagent adding device (6) to add reagent to the sample container located at the reagent adding station based on the reagent adding parameter; Step S503, controlling the reagent adding device (6) to transport the sample container to the reagent mixing station, and controlling the first vibrating device to mix the sample to be tested in the sample container with the reagent to form a first sample.

10. A detection method for food safety detection equipment according to claim 9, characterized in that: The step S6 specifically includes the following steps: Step S601, based on the sample parameters and the detection type, determine the transport position in the sample container. If centrifugation is performed, proceed to step S602; if not, proceed to step S604; Step S602, controlling the first transport mechanism to transport the sample container located in the first containing part to the second containing part of the centrifugal device, and controlling the centrifugal device to perform a centrifugal operation on the sample container located in the second containing part; Step S603, controlling the first transport mechanism to transport the sample container located in the second containing portion to the first containing portion of the multi-station turntable device (2); Step S604, controlling the multi-station turntable device (2) to transport the sample container to the extraction station; Step S605, controlling the extraction mechanism to extract the first sample in the sample container, and transporting the extraction liquid to the detection device to perform corresponding detection on the extraction liquid.

11. A detection method for food safety detection equipment according to claim 10, characterized in that: The step S605 specifically includes the following steps: Step S6051, controlling the extraction mechanism to extract the first sample in the sample container of the first containing part through the liquid transfer gun; Step S6052, controlling the extraction mechanism to transport the extraction liquid to the colloidal gold detection card located in the fourth containing part of the detection device through the liquid transfer gun; Step S6053, control the second image acquisition device (52) to acquire the image of the colloidal gold detection card, and the detection is completed.

12. A detection method for food safety detection equipment according to claim 10, characterized in that: The step S605 specifically includes the following steps: Step S6051, controlling the extraction mechanism to extract the first sample in the sample container of the first containing part through the liquid transfer gun; Step S6052, controlling the extraction mechanism to transport the extraction liquid to the detection container located in the third containing part of the detection device through the liquid transfer gun; Step S6053, controlling the reagent adding device to add a corresponding reagent into the detection container located in the third containing portion, and mixing the extracting liquid and the reagent to form a second sample through the second vibrating device; Step S6054, controlling the first image acquisition device (51) to acquire an image of the second sample in the detection container, and the detection is completed.

13. A detection method for food safety detection equipment according to claim 10, characterized in that: The step S605 specifically includes the following steps: Step S6051, controlling the extraction mechanism to extract the first sample in the sample container of the first containing part through the liquid transfer gun; Step S6052, controlling the extraction mechanism to transport the extraction liquid to the detection container located in the third containing part of the detection device through the liquid transfer gun; Step S6053, controlling the reagent adding device to add the corresponding reagent into the detection container located in the third containing portion, and using the second vibrating device to make the extract and the reagent form a second sample; Step S6054, controlling the extraction mechanism to extract the second sample through the pipette gun, and transporting the extraction liquid to the colloidal gold detection card in the fourth containing part of the detection device; Step S6055, control the second image acquisition device (52) to acquire the image of the colloidal gold detection card, and the detection is completed.

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