Portable food safety comprehensive detection equipment

Abstract

The utility model discloses portable food safety comprehensive detection equipment which comprises an upper box body cover and a lower box body which are hinged, a display screen and a main control board are arranged in the upper box body cover, and a lower panel, a printer module, an interface circuit board, a battery and a plurality of detection modules are arranged in the lower box body; the main control board interacts with the detection module and the printer module through the interface circuit board, and the detection module at least comprises a colorimetric spectroscopic detection module, a colloidal gold photographing module and a fluorescence scanning module. The comprehensive food safety rapid detection equipment adopts a portable structure, integrates a plurality of detection modules such as the main control board, the large-size display screen, the printer, the colorimetric spectroscopic detection module, the colloidal gold photographing module and the fluorescence immunoassay scanning module through reasonable space distribution, has relatively comprehensive detection capability, and is convenient to use. And the unified management of various detection data is realized, the requirements of field detection can be met, and the portability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the field of food detection, in particular to a portable comprehensive food safety detection device. Background Art

[0002] Food inspection in a broad sense refers to a discipline that studies and evaluates food quality and its changes. It is based on some basic theories and various technologies of physics, chemistry, and biochemistry, and in accordance with the established technical standards, such as international and national food hygiene / safety standards, to inspect the quality of food raw materials, auxiliary materials, semi-finished products, finished products and by-products to ensure that the product quality is qualified. The content of food inspection includes sensory testing of food, testing of nutrients, additives, and harmful substances in food, etc. The development of analytical chemistry provides accurate and reliable analytical methods for food safety inspection. With the improvement of people's quality of life, more and more attention is paid to the safety of food ingredients and processed foods. Food safety issues are closely related to the development of social economy and social stability. With the rapid development of science and technology, food inspection technology has been able to achieve an accuracy of one millionth or even one billionth. The indicators of food inspection mainly include general component analysis of food, trace element analysis, pesticide residue analysis, veterinary drug residue analysis, mycotoxin analysis, food additive analysis, heavy metal element content and other harmful substances analysis.

[0003] In recent years, with the continuous development of food safety rapid detection technology, in the field of food safety rapid detection, more and more detection methods are applied to food safety rapid detection equipment, including: spectrophotometry, colloidal gold immunochromatography, dry chemical analysis, anodic stripping voltammetry, bioluminescence / chemiluminescence detection, thin layer chromatography, etc. Most detection equipment only contains a single detection method, so the detection indicators are limited.

[0004] With the rapid development of the food safety rapid testing system, users have more diversified demands for testing indicators, and need to purchase multiple testing equipment to meet the testing indicator needs of different testing methods. The resulting problems are that the equipment manufacturers are different, the execution standards and interpretation standards are not unified, and the test data cannot be uploaded through a unified interface. In addition, when testing on-site and in the circulation field, there are many test indicators and it is necessary to carry a variety of equipment and testing tools, which is of poor practicality and low efficiency. Utility Model Content

[0005] The utility model aims to provide a portable comprehensive food safety testing device to solve the above technical problems. The technical solution is as follows:

[0006] A portable comprehensive food safety detection device, comprising a hinged upper box cover and a lower box body. A display screen and a main control board are arranged inside the upper box cover, and a lower panel, a printer module, an interface circuit board, a battery and a plurality of detection modules are arranged inside the lower box body. The main control board interacts with the detection modules and the printer module through the interface circuit board. The detection modules at least include: a colorimetric spectrophotometric detection module, a colloidal gold photographing module and a fluorescence scanning module.

[0007] Further, the colorimetric spectrophotometric detection module includes: a multi-channel colorimetric cell, a first light source device and a photoelectric receiving device. The multi-channel colorimetric cell includes a plurality of colorimetric cells arranged in a single row. The first light source device and the photoelectric receiving device are respectively arranged on both sides of the multi-channel colorimetric cell. A plurality of high-brightness LED lamp beads are arranged on the first light source device, and a plurality of photoelectric sensors are arranged on the photoelectric receiving device. Each slot of the colorimetric cell corresponds to a high-brightness LED lamp bead and a photoelectric sensor respectively. A first slot is arranged on the lower panel, and the colorimetric spectrophotometric detection module is installed below the lower panel, and the multi-channel colorimetric cell is arranged at the first slot.

[0008] Further, the colorimetric spectrophotometric detection module further includes: a heating sheet and a channel indicator light. The heating sheet is fixed at the bottom of the multi-channel colorimetric cell. Each slot of the colorimetric cell is configured with a channel indicator light.

[0009] Further, the colloidal gold photographing module is installed below the lower panel. The colloidal gold photographing module includes: a second light source device, an image acquisition device and a detection card loading device. The second light source device includes an annular LED lamp group and a light homogenizing plate. The detection card loading device includes a photographing module card slot and a photographing module card holder. The photographing module card holder is used to carry the detection card and insert it into the photographing module card slot through the slot arranged on the lower panel. The image acquisition device acquires the image of the detection card and sends it to the main control board.

[0010] Further, the fluorescence scanning module includes a sample loading slot and a scanning device. The sample loading slot is used to load the detection card, and the sample loading slot extends out of or is retracted into the lower box body through the slot arranged on the side of the lower box body. The scanning device adopts a V-shaped optical path system, with an excitation light source and an excitation filter at one end, and a receiving filter and a photoelectric sensor at the other end. A slit is arranged at the lower end to control the spot size and the fluorescence receiving range.

[0011] Further, an electric motion mechanism is arranged on the sample loading slot to control the extension and retraction actions of the sample loading slot.

[0012] Further, the display screen is a true color screen with a size greater than or equal to 12.1 inches, and the display resolution is greater than or equal to 1024×600.

[0013] Further, the printer module is an embedded thermal printer module.

[0014] Further, a support structure is also provided between the upper box cover and the lower box body. Through the support structure, the included angle between the upper box cover and the lower box body is fixed between 90° and 115°.

[0015] Further, the support structure includes a support rod seat disposed on one side of the upper box cover, a support rod axially connected to the support rod seat, and a limiting groove disposed on the lower box body; when the movable end of the support rod is inserted into the limiting groove, a support is formed.

[0016] The present invention provides a comprehensive detection device integrating multiple detection methods. The signal acquisition units of multiple detection methods are controlled by a unified central processing system, meeting the on-site detection needs while ensuring the device functions, improving the portability of the device, and realizing the compatibility of multiple detection modules.

[0017] The following technical effects are achieved by the present utility model:

[0018] This comprehensive food safety rapid detection device adopts a portable structure. By reasonably allocating space, it integrates a main control board, a large-size display screen, a printer, a colorimetric spectrophotometry detection module, a colloidal gold photographing module, a fluorescence immunoassay scanning module, and other multiple detection modules. It already has relatively comprehensive detection capabilities and realizes the unified management of various detection data, meeting the on-site detection needs and improving the portability of the device. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the comprehensive food safety rapid detection device of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the comprehensive food safety rapid detection device of the present utility model (removing the lower panel);

[0021] Figure 3 is an exploded view of the structure of the upper box cover part;

[0022] Figure 4 is a schematic structural diagram of the colorimetric spectrophotometry detection module;

[0023] Figure 5 is an exploded view of the structure of the colorimetric spectrophotometry detection module;

[0024] Figure 6 is a schematic structural diagram of the colloidal gold photographing module;

[0025] Figure 7 is an exploded view of the structure of the colloidal gold photographing module;

[0026] Figure 8 It is a schematic structural diagram of the fluorescence scanning module;

[0027] Figure 9 It is an exploded view of the structure of the fluorescence scanning module;

[0028] Figure 10 It is a system block diagram of the comprehensive food safety rapid detection device. Detailed implementation manners

[0029] To further illustrate each embodiment, the present utility model provides drawings. These drawings are a part of the disclosure of the present utility model, which are mainly used to illustrate the embodiments and can be combined with the relevant descriptions in the specification to explain the operation principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0030] Now, the present utility model will be further described in combination with the drawings and specific implementation manners.

[0031] As Figures 1 to 10 shown, the present utility model provides a comprehensive food safety rapid detection device, including a portable box body 1, which is composed of a hinged upper box cover 101 and a lower box body 102. Components such as an upper panel 605, a backlight panel 603, a display screen 604, and a main control board 602 are arranged in the upper box cover 101; a lower panel 302, a printer module 301, an interface circuit board 306, a lithium battery 309, and detection modules such as a colorimetric and spectrophotometric detection module 7, a colloidal gold photographing module 4, and a fluorescence immuno-scanning module 5 which are designed modularly are arranged in the lower box body 102.

[0032] Among them: The main control board 602 is a microcomputer main board, which is arranged behind the display screen 604. This device does not need to be externally connected to a computer and realizes functions such as processing, collecting, and uploading (optional) of detection data, which is convenient for unified management and analysis of data. Preferably, a low-power processor is adopted, with a main frequency ≥1.5 GHz and an energy consumption ≤20 W; the memory capacity ≥2 GB to ensure the smooth operation of the entire system, and the storage capacity ≥32 GB to provide sufficient data storage capacity and have good anti-seismic and anti-drop capabilities. Arranging the main control board 602 in the upper box cover 101 helps to simplify the connection between the main control board 602 and the display screen 604, and at the same time provides more space in the lower box body 102 to integrate more detection modules.

[0033] The display screen 604 occupies the main part of the inner surface of the entire upper box cover. It uses a true-color screen with a display resolution ≥ 1024×600 and a screen ≥ 12.1 inches, and supports the functions of playing experimental operation guidance videos and real-time displaying detection data. Setting the large-size display screen 604 in the upper box cover 601 facilitates detection operations and provides a better display effect.

[0034] In this embodiment, for convenient display, a support rod seat 606 is provided on one side of the upper panel 605 on the upper box cover 101, and a support rod 607 is movably arranged on the support rod seat 606. When the upper cover is turned up, support can be formed through the abutting cooperation between the support rod 607 and the limit groove 310 of the lower panel, so that the included angle between the upper box cover and the lower box is fixed between 90° and 115°.

[0035] The printer module 301 is embedded in the lower panel 302 and can directly output the detection and analysis results. Preferably, an embedded thermal printer module is used, which is small in size and easy to operate.

[0036] The interface circuit board 306 provides various input and output interfaces, such as function keys like power buttons and detection buttons, and data interfaces such as USB and RJ45. It provides power-on and power-off operations, power management, connects to the main control board 602 and each detection module, forwards the detection data of each detection module to the main control board 602, and forwards the data communication between the main control board 602 and external devices such as the host computer.

[0037] Optionally, a wireless communication module is also provided on the interface circuit board 306. Through the wireless communication module, wireless connection between this device and external devices can be supported, realizing remote transmission and sharing of data.

[0038] The colorimetric spectrophotometric detection module 7 is used to implement detection based on spectrophotometry. The colorimetric spectrophotometric detection module uses an array-type high-brightness LED lamp group as the light source and a photoelectric sensor as the receiver. Any wavelength light source can be selected for each channel to simultaneously detect multiple channels and multiple arbitrary detection indicators, improving the detection efficiency.

[0039] In this embodiment, the colorimetric spectrophotometric detection module 7 is an 8-channel colorimetric spectrophotometric detection module. It includes: an 8-channel colorimetric cell 705, a light source circuit board 707, and a photoelectric receiving board 704. The light source circuit board 707 and the photoelectric receiving board 704 are respectively arranged on both sides of the colorimetric cell 705. There are 8 high-brightness LED lamp beads on the light source circuit board 707, and 8 photoelectric sensors on the photoelectric receiving board 704. Each slot position of the colorimetric cell 705 corresponds to a high-brightness LED lamp bead and a photoelectric sensor respectively; there is a slot on the lower panel 302, and the colorimetric spectrophotometric detection module 7 is installed below the lower panel 302, and the colorimetric cell 705 is arranged at the first slot for convenient detection operations.

[0040] The spectral detection module 7 is also provided with a heating sheet 702 and a channel indicator light 706; the heating sheet 702 is fixed at the bottom of the colorimetric cell 705; each channel of the colorimetric cell 705 is configured with a channel indicator light 706.

[0041] The colloidal gold photographing module 4 is used to implement the detection based on the colloidal gold immunoassay. It includes a light source device, an image acquisition device, a test strip loading device, etc. In this embodiment, the colloidal gold photographing module 4 is installed below the lower panel 302. The light source device is an annular LED lamp group 405, and a light homogenizing plate 404 is provided to ensure stable and uniform light source. The test strip loading device includes a photographing module card slot 403 and a photographing module card holder 406; the photographing module card holder 406 carries the test strip and is inserted into the photographing module card slot 403 through the notch provided on the lower panel 302. The image acquisition device is a camera 401. The image of the test strip is acquired by the camera 401 and sent to the main control board, and the image processing is performed by relevant processing programs through algorithms such as wavelet filtering, gray stretching, edge recognition, and gray integration, so as to achieve qualitative and quantitative analysis.

[0042] The fluorescence scanning module 5 is used to implement the detection based on the fluorescence immunoassay. In this embodiment, the fluorescence scanning module 5 includes a sample loading slot 509 and a scanning device, etc. The scanning device adopts a V-shaped optical path system, with an excitation light source 505 and an excitation filter at one end, and a receiving filter and a photoelectric sensor 506 at the other end. A slit is provided at the lower end to control the spot size and the fluorescence receiving range. The scanning device is controlled by a motion mechanism to scan the fluorescence quantitative test strip on the sample loading slot, and the feedback fluorescence signal is acquired, so as to achieve quantitative analysis.

[0043] In this embodiment, the scanning device is fixed on the lower panel 302 through a fixed bracket 309, and a motion mechanism is composed of a motor, a limit module 501, a linear guiding slider 503, a linear slide rail 502, etc. The motion mechanism is connected to the sample loading slot 509. The sample loading slot 509 is extended or retracted into the lower box body 102 through the notch on the side of the lower box body 102 under the control of the electric motion mechanism. During this process, the scanning device simultaneously scans the fluorescence quantitative test strip on the sample loading slot 509. The fluorescence quantitative test strip includes a test strip upper shell 510, a test strip lower shell 512 and a test paper 511 encapsulated between the two.

[0044] This comprehensive food safety rapid detection device adopts a portable structure. By reasonably allocating space, it integrates a main control board, a large-size display screen, a printer, and multiple detection modules such as a colorimetric and spectral detection module, a colloidal gold photographing module, and a fluorescence immunoassay scanning module. It already has a relatively comprehensive detection ability, and realizes the unified management of various detection data, which can meet the needs of on-site detection and improve the portability of the device.

[0045] Although the present utility model has been specifically shown and described in connection with preferred embodiments, those skilled in the art should understand that various changes can be made to the present utility model in form and detail without departing from the spirit and scope of the present utility model as defined by the appended claims, and all such changes are within the protection scope of the present utility model.

Claims

1. A portable comprehensive food safety detection device, characterized in that: It includes a hinged upper box cover and a lower box body. A display screen and a main control board are arranged inside the upper box cover, and a lower panel, a printer module, an interface circuit board, a battery and multiple detection modules are arranged inside the lower box body; The main control board interacts with the detection modules and the printer module through the interface circuit board. The detection modules at least include: a colorimetric spectrophotometry detection module, a colloidal gold photographing module and a fluorescence scanning module; The colorimetric spectrophotometry detection module includes: a multi-channel colorimetric cell, a first light source device and a photoelectric receiving device. The multi-channel colorimetric cell includes a plurality of colorimetric cells arranged in a single row; the first light source device and the photoelectric receiving device are respectively arranged on both sides of the multi-channel colorimetric cell. A plurality of high-brightness LED lamp beads are arranged on the first light source device, and a plurality of photoelectric sensors are arranged on the photoelectric receiving device. Each slot of the colorimetric cell corresponds to a high-brightness LED lamp bead and a photoelectric sensor respectively; a first notch is arranged on the lower panel, and the colorimetric spectrophotometry detection module is installed below the lower panel, and the multi-channel colorimetric cell is arranged at the first notch; The colloidal gold photographing module is installed below the lower panel; the colloidal gold photographing module includes: a second light source device, an image acquisition device and a detection card loading device. The second light source device includes an annular LED lamp group and a light homogenizing plate; the detection card loading device includes a photographing module card slot and a photographing module card holder; the photographing module card holder is used to carry the detection card and insert it into the photographing module card slot through the notch arranged on the lower panel; the image acquisition device acquires the image of the detection card and sends it to the main control board; The fluorescence scanning module includes a sample loading slot and a scanning device; the sample loading slot is used to load the detection card, and the sample loading slot extends out of or is retracted into the lower box body through the notch arranged on the side of the lower box body; the scanning device adopts a V-shaped optical path system, with an excitation light source and an excitation filter at one end, and a receiving filter and a photoelectric sensor at the other end; a slit is arranged at the lower end to control the spot size and the fluorescence receiving range.

2. The portable comprehensive food safety detection device according to claim 1, wherein: The colorimetric spectrophotometry detection module further includes: a heating sheet and a channel indicator light; the heating sheet is fixed at the bottom of the multi-channel colorimetric cell; each slot of the colorimetric cell is configured with a channel indicator light.

3. The portable comprehensive food safety detection device according to claim 1, characterized in that: An electric motion mechanism is arranged on the sample loading slot, which is used to control the extension and retraction actions of the sample loading slot.

4. The portable comprehensive food safety detection device according to claim 1, wherein: The display screen is a true color screen with a size greater than or equal to 12.1 inches, and the display resolution is greater than or equal to 1024×600.

5. The portable comprehensive food safety detection device according to claim 1, wherein: The printer module is an embedded thermal printer module.

6. The portable comprehensive food safety detection device according to claim 1, characterized in that: A support structure is further arranged between the upper box cover and the lower box body. Through the support structure, the included angle between the upper box cover and the lower box body is fixed between 90° and 115°.

7. The portable comprehensive food safety detection device according to claim 6, characterized in that: The support structure includes a support rod seat arranged on one side of the upper box cover, a support rod axially connected to the support rod seat, and a limit groove arranged on the lower box body; when the movable end of the support rod is inserted into the limit groove, a support is formed.

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