Food detection device convenient for microbial culture

By incorporating multiple detachable culture units and rotating racks into the food testing device, the problems of large space occupation and difficult observation in existing devices are solved, achieving convenient sample observation and reducing contamination by miscellaneous bacteria.

CN121320060APending Publication Date: 2026-01-13HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
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Patent Information

Application Number
CN202511470954.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-15
Publication Date
2026-01-13

AI Technical Summary

Technical Problem

Existing food testing equipment occupies a large area, is not easy to move, and is not convenient to observe and take out the middle layer samples, which can easily cause sample collisions and contamination by bacteria.

Method used

Multiple detachable culture units were designed, equipped with inlet and outlet pipes for temperature regulation, and a rotating rack was used for easy observation. The middle layer samples were observed by rotating the culture unit with a lever.

Benefits of technology

It saves space, facilitates installation and observation, reduces contamination by other microorganisms, and improves detection efficiency and accuracy.

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Abstract

The invention relates to the technical field of food detection, and discloses a food detection device convenient for microbial culture, the food detection device comprises a main body, a top cover arranged above the main body and a base arranged below the main body, a plurality of culture units are vertically arranged in the main body, and every two adjacent culture units are connected through a mounting assembly; a rotating shaft for rotating is arranged in the center of the culture unit; the surface of the top cover is provided with an observation window facilitating observation and an air inlet pipe used for air inlet. The side face of the base is provided with an air outlet pipe used for air outlet. The culture unit comprises a culture box for culture, and the culture box is arranged on the placing rack. According to the food detection device convenient for microorganism culture, the culture units are arranged, the temperature of the culture device is adjusted through the air inlet pipe and the air outlet pipe, microorganism culture is facilitated, in addition, the culture condition of microorganisms can be observed at any time through the rotary placement frame, and observation and recording are facilitated.
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Description

Technical Field

[0001] This invention relates to the field of food testing technology, and in particular to a food testing device that facilitates microbial culture. Background Technology

[0002] Food testing, also known as safety testing, involves conducting microbiological tests on processed food according to national standards to detect the presence of pathogenic bacteria or whether certain bacteria and microorganisms exceed the limits, such as heavy metals and aflatoxin.

[0003] Existing food testing methods typically involve placing the food sample to be tested inside an incubator on the testing table for microbial culture. However, these incubators occupy a large area, making them inconvenient to move. Furthermore, existing incubators make it difficult to observe and remove samples placed in the middle layer of the incubator, and the samples on top are easily damaged during handling. Therefore, this invention provides a food testing device that is easy to disassemble and install, and facilitates observation and removal of samples in the middle layer. Summary of the Invention

[0004] The purpose of this invention is to provide a food testing device that facilitates microbial culture. It is equipped with multiple culture units and the temperature of the culture device is regulated by an air inlet pipe and an air outlet pipe to facilitate microbial culture. In addition, the rotating rack allows for observation of the microbial culture at any time, which is convenient for observation and recording.

[0005] To achieve the above objectives, the present invention provides a food testing device for facilitating microbial culture, comprising a main body, a top cover disposed above the main body, and a base disposed below the main body. Several culture units are vertically arranged inside the main body, and adjacent culture units are connected by an installation component. A rotating shaft for rotation is disposed at the center of each culture unit. An observation window for easy observation and an air inlet pipe for air intake are provided on the surface of the top cover, and an air outlet pipe for air exhaust is provided on the side of the base. Each culture unit includes an incubator for culture, which is disposed on a shelf.

[0006] Furthermore, the main body surface is provided with a window, the window surface is provided with a handle for easy handling, and the air inlet pipe and air outlet pipe are provided with bacterial filter membranes.

[0007] Furthermore, the placement racks are arranged in pairs, with a sleeve between the two placement racks. The sleeve is fitted over the outside of the rotating shaft. The top of the rotating shaft is connected to the top cover via an upper mounting seat, and the bottom of the rotating shaft is connected to the base via a lower mounting seat.

[0008] Furthermore, the side of the placement rack is provided with a lever, and the outer surface of the main body is provided with a groove, in which the lever is disposed.

[0009] Furthermore, the mounting assembly includes a mounting groove and a mounting block, the mounting groove being disposed on the upper surface of the main body sidewall, and the mounting block being disposed on the upper surface of the main body sidewall.

[0010] Furthermore, an L-shaped plate is provided inside the side wall of the main body, and the L-shaped plate and the side wall form a slide rail. A slider is provided at the bottom of the placement rack, and the slider is adapted to the slide rail.

[0011] Furthermore, the inner bottom surface of the placement rack is provided with a positioning block, and the outer bottom surface of the incubator is provided with a positioning groove, the positioning block and the positioning groove being compatible.

[0012] Furthermore, the incubator is equipped with a partition that divides the incubator into a first incubation zone and a second incubation zone.

[0013] Furthermore, the lower surface of the top cover is provided with a mounting block that is adapted to the mounting groove.

[0014] Furthermore, the upper surface of the base is provided with a mounting groove that is compatible with the mounting block.

[0015] The advantages and positive effects of the food testing device for facilitating microbial culture described in this invention are as follows: 1. This invention is provided with multiple culture units, and the culture units are detachably connected. Several culture units can be selected according to the needs, which not only saves space but also facilitates installation.

[0016] 2. In this invention, the temperature of the culture device is regulated by the air inlet pipe and the air outlet pipe, which facilitates the culture of microorganisms.

[0017] 3. In this invention, the microbial culture can be observed at any time by rotating the placement rack, which is convenient for observation and recording. The culture unit can be rotated by turning the lever to observe the microbial culture inside the middle and bottom layers of the incubator. Compared with the prior art, it is not necessary to open the food detection device, which reduces the contamination of miscellaneous bacteria.

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a food testing device for facilitating microbial culture according to the present invention; Figure 2 This is an internal schematic diagram of an embodiment of a food testing device for facilitating microbial culture according to the present invention; Figure 3 This is a schematic diagram of the culture unit of an embodiment of a food testing device for facilitating microbial culture according to the present invention; Figure 4This is a schematic diagram of the placement rack of an embodiment of a food testing device for facilitating microbial culture according to the present invention; Figure 5 This is a top view of the culture unit in an embodiment of a food testing device for facilitating microbial culture according to the present invention; Figure 6 This is a schematic diagram of an incubator according to an embodiment of a food testing device for facilitating microbial culture of the present invention.

[0020] Figure Labels 1. Top cover; 2. Main body; 3. Base; 4. Air inlet pipe; 5. Air outlet pipe; 6. Upper mounting base; 7. Observation window; 8. Toggle block; 9. Slide groove; 10. Handle; 11. Window; 12. Side wall; 13. Mounting block; 14. Mounting groove; 15. L-shaped plate; 16. Slider; 17. Slide rail; 18. Rotating shaft; 19. Lower mounting base; 20. Sleeve; 21. Positioning groove; 22. Positioning block; 23. Placement rack; 24. Incubator; 25. Partition; 26. First culture zone; 27. Second culture zone. Detailed Implementation

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Example like Figure 1As shown, a food testing device for facilitating microbial culture includes a main body 2, a top cover 1 positioned above the main body 2, and a base 3 positioned below the main body 2. The top cover 1 has an observation window 7 for easy observation and an air inlet pipe 4 for air intake. The base 3 has an air outlet pipe 5 on its side for air exhaust. Bacterial filter membranes are installed on the air inlet pipe 4 and the air outlet pipe 5. Gas is introduced through the air inlet pipe 4. When the microorganisms are cultured aerobically, air is introduced, and the air temperature is set as needed to allow the microorganisms to multiply. When the microorganisms are cultured anaerobicly, inert gases such as nitrogen are introduced, and the temperature is set as needed to allow the microorganisms to multiply. Finally, the gas is discharged from the air outlet pipe 5. Simultaneously, the bacterial filter membrane prevents contamination by other microorganisms. The main body 2 has a window 11 on its surface, and the window 11 has a handle 10 for easy handling. After the microbial culture is completed, the window 11 is opened, and the incubator 24 is removed for testing.

[0024] like Figure 2 and Figure 3 As shown, the main body 2 includes several culture units, with adjacent culture units connected by mounting components. Each culture unit has a central rotating shaft. The mounting components include mounting grooves 14 and mounting blocks 13. The mounting grooves 14 and mounting blocks 13 are located on the upper surface of the side wall 12 of the main body 2. Simultaneously, the lower surface of the top cover 1 has mounting blocks 13 that mate with the mounting grooves 14. The upper surface of the base 3 has mounting grooves 14 that mate with the mounting blocks 13. The culture units are detachably connected via the mounting grooves 14 and mounting blocks 13, allowing for the selection of several culture units as needed, saving space and facilitating installation.

[0025] An L-shaped plate 15 is provided inside the side wall 12 of the main body 2, and the L-shaped plate 15 and the side wall 12 form a slide rail 17. A slider 16 is provided at the bottom of the placement rack 23, and the slider 16 is adapted to the slide rail 17. The placement rack 23 rotates along the slide rail 17 with the pivot 18 as the center and the slider 16 as the center.

[0026] like Figure 4 As shown, the culture unit includes an incubator 24 for cultivation, which is mounted on a placement rack 23. Two placement racks 23 are arranged opposite each other. A sleeve 20 is provided between the two placement racks 23, and the sleeve 20 is fitted over the outside of a rotating shaft 18. The top of the rotating shaft 18 is connected to the top cover 1 via an upper mounting seat 6, and the bottom of the rotating shaft 18 is connected to the base 3 via a lower mounting seat 19. A lever 8 is provided on the side of the placement rack 23, and a groove 9 is provided on the outer surface of the main body 2, with the lever 8 positioned within the groove 9. The lever 8 allows the placement rack 23 to rotate along the slide rail 17.

[0027] The inner bottom surface of the placement rack 23 is provided with a positioning block 22, and the outer bottom surface of the incubator 24 is provided with a positioning groove 21. The positioning block 22 and the positioning groove 21 are adapted to each other. The incubator 24 is placed on the placement rack 23 through the cooperation between the positioning block 22 and the positioning groove 21, which can prevent the incubator 24 from shifting due to shaking.

[0028] like Figure 5 As shown, when the placement rack 23 rotates along the slide rail 17, the microbial cultivation in the intermediate layer incubator 24 can be observed through the empty space where the placement rack 23 is not set. Compared with the prior art, it is not necessary to open the food detection device, which effectively reduces the contamination of miscellaneous bacteria.

[0029] like Figure 6 As shown, the incubator 24 is internally equipped with a partition 25, which divides the incubator 24 into a first culture zone 26 and a second culture zone 27. The first culture zone 26 and the second culture zone 27 can simultaneously culture the sample to be tested. Alternatively, a sample of known bacteria can be placed in either the first culture zone 26 or the second culture zone 27 as a reference sample. If the sample to be tested and the existing sample are compatible, the information of the sample to be tested can be obtained more quickly, reducing the testing time.

[0030] In use, select the number of layers of the culture unit according to actual needs, then put the sample to be tested into the incubator 24, and then place the incubator 24 on the placement rack 23. Assemble the base 3, culture unit and top cover 1. Select the aerobic or anaerobic environment according to the type of bacteria to be cultured, and introduce gas through the air inlet pipe 4. During the culture process, observe the culture status of the sample through the observation window 7. When it is necessary to observe the status of the middle layer sample, rotate the culture unit by the lever 8 so that the incubator 24 to be observed is located in the empty space next to the placement rack 23, and observe through the observation window 7.

[0031] Therefore, the present invention adopts the above-mentioned food testing device that facilitates microbial culture, which is equipped with multiple culture units and uses an air inlet pipe and an air outlet pipe to regulate the temperature of the culture device, which facilitates the culture of microorganisms. In addition, the rotating placement rack allows for observation of the microbial culture at any time, which is convenient for observation and recording.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A food testing device that facilitates microbial culture, characterized in that: The device includes a main body, a top cover located above the main body, and a base located below the main body. Several culture units are vertically arranged inside the main body, and adjacent culture units are connected by an installation component. A rotating shaft for rotation is located at the center of each culture unit. The surface of the top cover is provided with an observation window for easy observation and an air inlet pipe for air intake. An air outlet pipe for air exhaust is provided on the side of the base. Each culture unit includes an incubator for culture, which is placed on a shelf.

2. The food testing device for facilitating microbial culture according to claim 1, characterized in that: The main body surface is provided with a window, and the window surface is provided with a handle for easy handling. The air inlet pipe and air outlet pipe are provided with bacterial filter membranes.

3. The food testing device for facilitating microbial culture according to claim 1, characterized in that: The placement racks are arranged in two opposite positions, with a sleeve between the two placement racks. The sleeve is fitted over the outside of the rotating shaft. The top of the rotating shaft is connected to the top cover through an upper mounting seat, and the bottom of the rotating shaft is connected to the base through a lower mounting seat.

4. The food testing device for facilitating microbial culture according to claim 1, characterized in that: The side of the placement rack is provided with a lever, and the outer surface of the main body is provided with a sliding groove, in which the lever is placed.

5. The food testing device for facilitating microbial culture according to claim 1, characterized in that: The mounting assembly includes a mounting groove and a mounting block. The mounting groove is disposed on the upper surface of the main body sidewall, and the mounting block is disposed on the upper surface of the main body sidewall.

6. The food testing device for facilitating microbial culture according to claim 1, characterized in that: The main body has an L-shaped plate inside its side wall, which forms a slide rail with the side wall. The bottom of the placement rack has a slider that is adapted to the slide rail.

7. The food testing device for facilitating microbial culture according to claim 1, characterized in that: The inner bottom surface of the placement rack is provided with a positioning block, and the outer bottom surface of the incubator is provided with a positioning groove, with the positioning block and the positioning groove being compatible.

8. The food testing device for facilitating microbial culture according to claim 1, characterized in that: The incubator is equipped with a partition that divides the incubator into a first incubation zone and a second incubation zone.

9. A food testing device for facilitating microbial culture according to claim 1, characterized in that: The lower surface of the top cover is provided with a mounting block that is adapted to the mounting groove.

10. A food testing device for facilitating microbial culture according to claim 1, characterized in that: The upper surface of the base is provided with a mounting groove that is compatible with the mounting block.