Milk product microorganism content detection equipment

By designing an automated dairy microbial content detection device, the problems of low efficiency and low accuracy of traditional detection methods are solved, efficient and accurate microbial content detection is achieved, and data management and report generation are simplified.

CN119552734AInactive Publication Date: 2025-03-04HUNAN AGRI UNIV
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Patent Information

Application Number
CN202411811623.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-03-04
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Traditional dairy microbial content detection methods rely on manual operations, are inefficient, have low accuracy, and are difficult to achieve automated report generation and data management.

Method used

Design a dairy product microbial content detection equipment, including a detection sample packing mechanism, a culture dish conveying device, a detection sample injection mechanism and a detection device, adopts an automated detection sample packing, injection and culture process, combines microscopic detection and colony culture detection, and uses image recognition and environmental control technology to achieve automated detection and report generation.

Benefits of technology

Improve the efficiency and accuracy of detection, reduce human errors, realize sterile operation, expand the coverage of detection, ensure the accuracy of detection results, and simplify data management and report generation.

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Abstract

The invention discloses equipment for detecting the content of microorganisms in dairy products. The equipment comprises a detection sample subpackaging mechanism, a culture dish conveying device, a detection sample injection mechanism and a detection device, the detection device comprises a microscopic detection device and a bacterial colony culture detection device; the detection device is used for carrying out microorganism content detection on a detection sample; the number of the detection sample injection mechanisms is two, the detection sample subpackaging mechanism is used for conveying dairy product detection samples to the two detection sample injection mechanisms respectively, and one detection sample injection mechanism is used for injecting the detection samples into a bacterial colony culture dish on the culture dish conveying device; and the other detection sample injection mechanism is used for injecting a detection sample into the glass slide. The detection equipment for the microorganism content of the dairy product can efficiently and automatically detect the microorganism content of the dairy product.
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Description

Technical Field

[0001] The invention belongs to the technical field of dairy product detection, and specifically refers to a device for detecting the microbial content of dairy products. Background Art

[0002] In the traditional detection process of microbial content in dairy products, the commonly used detection methods have some obvious shortcomings, which greatly limit the efficiency and accuracy of the detection. The following are some of the main defects of the existing technology: Strong dependence on manual operation: Traditional detection methods often require a lot of manual operation, including steps such as sampling, preparation, inoculation and observation of samples. This not only increases the complexity of the operation, but also increases the possibility of human error, affecting the accuracy and consistency of the test results. Low detection efficiency: Due to the limitations of manual operation, traditional detection methods are inefficient when processing a large number of samples and cannot meet the needs of the modern dairy industry for rapid detection. Difficult environmental control: Detection conducted in a non-sterile environment is susceptible to contamination by external microorganisms, which may lead to inaccurate test results, especially in the colony culture stage. Image recognition and counting rely on manual labor: Traditional microscopic observation and colony counting often rely on manual recognition and counting, which is not only time-consuming and labor-intensive, but also easily affected by subjective judgment, resulting in instability of the results. Imperfect data management: In the traditional detection process, the recording and storage of data are often not systematic enough, making it difficult to achieve effective data tracking and management, which creates obstacles for subsequent data analysis and quality control. Lack of automated report generation: Traditional testing methods usually do not include automated report generation functions. Test results need to be manually collated and reported, which not only increases the workload but may also lead to omissions or errors in information. Summary of the invention

[0003] In order to overcome the problems of the prior art, the present invention designs a dairy product microbial content detection device, which can efficiently and automatically detect the dairy product microbial content.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a dairy product microbial content detection device, comprising a test sample packaging mechanism, a culture dish conveying device, a test sample injection mechanism, and a detection device; the detection device is arranged in a sterile laboratory, and the detection device comprises a microscopic detection device and a colony culture detection device; the detection device is used to perform microbial content detection on the test sample; the microscopic detection device is used to perform microscopic observation on a glass slide carrying the test sample and take images for counting, and the colony culture detection device is used to culture colonies using a colony culture dish containing the test sample; different colony culture dishes have different culture media, which is conducive to the growth of different microorganisms;

[0005] The culture dish conveying device is used to convey the bacterial colony culture dish. There are two test sample injection mechanisms. The test sample packaging mechanism is used to transport the dairy product test samples to the two test sample injection mechanisms respectively. The test sample packaging mechanism includes a fluid pump, a pipeline and an electric control valve. One of the test sample injection mechanisms is used to inject the test sample into the bacterial colony culture dish on the culture dish conveying device, and the other test sample injection mechanism is used to inject the test sample into the slide. The test sample injection mechanism includes an injection device.

[0006] Furthermore, the colony culture detection device includes a culture cabinet, a track, a first detection camera and an access robot arm. The culture cabinet is provided with a plurality of compartments, each of which is provided with a culture dish positioning groove at the bottom, and each of the compartments of the culture cabinet is provided with an electric-controlled switch door on the side, and each of the compartments is provided with an environmental control device; the environmental control device includes a temperature control device, a humidity control device and an oxygen control device, and the environmental parameters are adjusted according to the type of microorganisms cultured in the compartment, so that the environment is conducive to the growth of microorganisms, and a large detection error is avoided due to the poor growth environment of microorganisms affecting the growth of colonies;

[0007] The top of the culture cabinet is made of transparent material. The track is arranged above the culture cabinet. The track passes above each compartment. A mobile platform is installed on the track. The mobile platform can move along the track under the drive of a motor. The first detection camera is installed below the mobile platform. The access robot is installed above the mobile platform. The access robot is used to deliver the colony culture dish on the culture dish conveying device into the compartment. The first detection camera takes pictures of the colony culture dish in each compartment at a certain time interval to record the growth of microbial colonies for detection and identification of microbial species.

[0008] Furthermore, a laser receiver is installed under the mobile platform, a laser transmitter is provided on one side of the culture dish positioning groove, the laser transmitter receives the laser emitted by the laser receiver for locating the position of the mobile platform, and the laser receiver is electrically connected to the mobile platform.

[0009] Furthermore, the microscopic detection device includes a conveyor belt, a glass slide assembly, a glass slide stabilizing clamp, a dust cover, a microscope assembly and a second detection camera; the conveyor belt, the glass slide assembly, the glass slide stabilizing clamp, the microscope assembly and the second detection camera are all arranged in the dust cover; the conveyor belt adopts chain drive, and a plurality of mounting bases are evenly fixed on the surface of the conveyor belt, and the glass slide assembly is mounted on the mounting base. The detection sample injection mechanism is provided on one side of the conveyor belt, and the detection sample injection mechanism is used to inject the detection sample into the glass slide assembly. The second detection camera is provided above the conveyor belt, and the microscope assembly is connected below the second detection camera; the conveyor belt transports the glass slide assembly to the bottom of the microscope assembly.

[0010] Furthermore, there are two slide stabilizing clamps, which are respectively arranged at the test sample injection mechanism and the second test camera, and the slide stabilizing clamp includes two first electromagnetic push rods arranged on both sides of the conveyor belt, and the ends of the first electromagnetic push rods are provided with clamping blocks, and when the first electromagnetic push rods push the clamping blocks out, the clamping blocks press against both sides of the slide assembly, ensuring that the slide assembly is stable and the orientation remains unchanged, which is convenient for injecting test samples and conducting microscopic observations.

[0011] Furthermore, the slide assembly includes a frame, a transparent glass slide, a light board and a magnetic base, the light board is provided above the magnetic base, two parallel transparent glass slides are provided above the light board, there is a gap between the two transparent glass slides, the frames are provided on three sides of the magnetic base, the frames block the gaps on the three sides of the two transparent glass slides, and leave one side as an opening for injecting the test sample, and the light board has a built-in battery; the mounting base is magnetic, and the magnetic base is adsorbed on the mounting base; a replacement mechanism is provided on the other side of the conveyor belt away from the test sample injection mechanism, the replacement mechanism is used to replace the slide assembly on the conveyor belt, the replacement mechanism includes a rotating bracket and two second electromagnetic push rods, the rotating bracket rotates under the drive of the motor, and a second electromagnetic push rod is provided at each end of the rotating bracket, the second electromagnetic push rod is provided with a magnetic suction part, the material of the frame is metal that can be adsorbed by a magnet, the dust cover is provided with a replacement port, the replacement port is located at the replacement mechanism, and the staff can take out the slide assembly that has been microscopically inspected at the replacement port.

[0012] Furthermore, it also includes a controller, and the culture dish conveying device, the test sample injection mechanism, the test sample packaging mechanism and the detection device are all electrically connected to the detection device; the controller is provided with a packaging control module, a culture dish conveying control module, a sample injection control module and a detection control module, and the packaging control module, the culture dish conveying control module, the sample injection control module and the detection control module are respectively used to control the test sample packaging mechanism, the culture dish conveying device, the test sample injection mechanism and the detection device.

[0013] Furthermore, the controller is provided with an image detection module and a storage module, and the image detection module includes a microorganism morphology recognition unit, a counting unit, a colony morphology recognition unit, an area recognition unit and a cloud database access unit; the microorganism morphology recognition unit is used to recognize the microorganisms in the image taken by the second detection camera through the microscope assembly, the counting unit is used to record the number of each microorganism, the colony morphology recognition unit is used to recognize the type of microorganisms of the colony captured by the first detection camera, and the area recognition unit is used to recognize the area of ​​the microorganism colony; the images taken by the first detection camera and the second detection camera are stored in the storage module; the cloud database access unit is used to access various microorganism microscopic images and images of various microorganism colonies stored in the cloud database, and the output end of the cloud database access unit is connected to the input end of the microorganism morphology recognition unit and the colony morphology recognition unit. After the colony morphology recognition unit recognizes the type of microorganism, it can evaluate the content of microorganisms in the sample according to the microorganism growth environment, growth time and colony growth.

[0014] Furthermore, the controller further comprises an environment information collection module and an environment control module, each of the compartments is provided with an environment detection sensor, the environment information collection module is used to obtain the environment monitoring data measured by each environment detection sensor, the environment control module is used to control the operation of the environment control device, and the output end of the environment information collection module is connected to the input end of the environment control module. The environment control module controls the operation of the environment control device according to the environment detection data fed back by the environment information collection module.

[0015] Furthermore, it also includes an interactive device, which includes a display. The controller also includes a report generation module. The output ends of the environmental information acquisition module and the image detection module are connected to the input end of the report generation module. The report generation module summarizes the detection results to generate a detection report, and sends it to the storage module. The staff can query it through the interactive device.

[0016] The beneficial effects of the microbial content detection equipment of dairy products of the present invention are as follows: high automation and accuracy, through the automated test sample packaging, injection and culture process, the accuracy and repeatability of the operation are improved, and human errors are reduced; the detection device can process multiple samples at the same time, which improves the detection efficiency and shortens the detection time; aseptic operation, the equipment is set in a sterile laboratory to avoid external microorganisms from contaminating the test samples, ensuring the accuracy of the test results; diversified culture, different bacterial colony culture dishes use different culture media, which is conducive to the growth of different microorganisms, and improves the coverage and accuracy of the detection, and through the coordinated use of the environmental information acquisition module and the environmental control module, the equipment can adjust the culture conditions according to the real-time environmental monitoring data to ensure the best growth environment for different types of microorganisms, avoiding the impact of poor microbial growth environment The colony growth conditions can cause large detection errors; the first detection camera takes pictures regularly to record the colony growth conditions, so the growth dynamics of microorganisms can be monitored in real time; the positioning system of the laser transmitter and receiver is used to ensure the precise position of the mobile platform, ensuring that the first detection camera can clearly take pictures of the colony culture dish; the image detection module is used to identify the microbial morphology and colony morphology, and the microbial species and quantity are automatically identified, which reduces the workload of manual analysis and improves accuracy; through the cloud database access unit, the equipment can access a large amount of microbial image data, improves the accuracy of identification, and facilitates data storage and management; after identifying the microbial species, it can also evaluate the content of microorganisms in the sample according to the growth environment, time and colony growth conditions of the microorganisms, providing important data support for the quality and safety of dairy products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a device for detecting microbial content in dairy products according to the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of a microscopic detection device for detecting the microbial content of dairy products according to the present invention. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the structure of a microscopic detection device for detecting the microbial content of dairy products according to the present invention. Figure 2 ;

[0020] Figure 4 This is a structural schematic diagram of a glass slide assembly of a device for detecting microbial content in dairy products according to the present invention;

[0021] Figure 5 This is a system architecture diagram of a controller of a device for detecting microbial content in dairy products according to the present invention;

[0022] Figure 6This is a system architecture diagram of an image detection module of a controller of a device for detecting microbial content in dairy products according to the present invention.

[0023] Among them, 1-test sample packaging mechanism, 2-culture dish conveying device, 3-test sample injection mechanism, 31-injection device, 4-detection device, 41-microscope detection device, 411-conveyor belt, 4111-mounting base, 412-slide assembly, 4121-frame, 4122-transparent glass slide, 4123-light board, 4124-magnetic base, 413-slide stabilizing clamp, 4131-first electromagnetic push rod, 4132-clamping block, 414-dust cover, 4141-replacement port, 415-microscope assembly, 416-second detection camera, 417-replacement mechanism, 4171-rotating bracket, 4172-second electromagnetic push rod, 42-colony culture detection device, 421-culture cabinet, 4211-compartment , 4212-electrically controlled switch door, 4213-environmental control device, 4214-environmental detection sensor, 422-track, 4221-mobile platform, 423-first detection camera, 424-storage and access robot arm, 425-culture dish positioning slot, 5-controller, 51-packaging control module, 52-culture dish conveying control module, 53-sample injection control module, 54-detection control module, 55-image detection module, 551-microorganism morphology recognition unit, 552-counting unit, 553-colony morphology recognition unit, 554-area recognition unit, 555-cloud database access unit, 56-storage module, 57-environmental information acquisition module, 58-environmental control module, 59-report generation module, 6-interactive device. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1 As shown, the present invention is a dairy product microbial content detection device, comprising a test sample packaging mechanism 1, a culture dish conveying device 2, a test sample injection mechanism 3, and a detection device 4; the detection device is arranged in a sterile laboratory, and the detection device 4 comprises a microscopic detection device 41 and a colony culture detection device 42; the detection device 4 is used to detect the microbial content of the test sample; the microscopic detection device 41 is used to perform microscopic observation on a glass slide carrying the test sample and take an image for counting, and the colony culture detection device 42 is used to culture colonies using a colony culture dish containing the test sample; different colony culture dishes have different culture media, which is conducive to the growth of different microorganisms;

[0026] The culture dish conveying device 2 is used to convey the bacterial colony culture dish. There are two test sample injection mechanisms 3. The test sample packaging mechanism 1 is used to transport the dairy product test samples to the two test sample injection mechanisms 3 respectively. The test sample packaging mechanism 1 includes a fluid pump, a pipeline and an electric control valve. One of the test sample injection mechanisms 3 is used to inject the test sample into the bacterial colony culture dish on the culture dish conveying device 2, and the other test sample injection mechanism 3 is used to inject the test sample into the slide. The test sample injection mechanism 3 includes an injection device 31.

[0027] Furthermore, the colony culture detection device 42 includes a culture cabinet 421, a track 422, a first detection camera 423 and an access robot 424. The culture cabinet 421 is provided with a plurality of compartments 4211, each of which is provided with a culture dish positioning groove 425 at the bottom. Each of the compartments 4211 of the culture cabinet 421 is provided with an electric switch door 4212 on the side, and each of the compartments 4211 is provided with an environment control device 4213; the environment control device 4213 includes a temperature control device, a humidity control device and an oxygen control device, and adjusts the environmental parameters according to the type of microorganisms cultured in the compartment, so that the environment is conducive to the growth of microorganisms, and avoids the occurrence of large detection errors due to the poor growth environment of microorganisms affecting the growth of colonies;

[0028] The top of the culture cabinet 421 is made of transparent material. The track 422 is arranged above the culture cabinet 421. The track 422 passes above each compartment 4211. A mobile platform 4221 is installed on the track 422. The mobile platform 4221 can move along the track 422 under the drive of a motor. The first detection camera 423 is installed below the mobile platform 4221. The access robot 424 is installed above the mobile platform 4221. The access robot 424 is used to deliver the colony culture dish on the culture dish conveying device 2 into the compartment 4211. The first detection camera 423 takes pictures of the colony culture dishes in each compartment 4211 at a certain time interval to record the growth of microbial colonies for detection and identification of microbial species.

[0029] Furthermore, a laser receiver is installed under the mobile platform 4221, and a laser transmitter is provided on one side of the culture dish positioning groove 425. The laser transmitter receives the laser emitted by the laser receiver for locating the position of the mobile platform 4221, and the laser receiver is electrically connected to the mobile platform 4221.

[0030] Furthermore, the microscopic detection device 41 includes a conveyor belt 411, a glass slide assembly 412, a glass slide stabilizing fixture 413, a dust cover 414, a microscope assembly 415 and a second detection camera 416; the conveyor belt 411, the glass slide assembly 412, the glass slide stabilizing fixture 413, the microscope assembly 415 and the second detection camera 416 are all arranged in the dust cover 414; the conveyor belt 411 adopts a chain drive, and a plurality of mounting bases are evenly fixed on the surface of the conveyor belt 411 4111, the glass slide assembly 412 is installed on the mounting base 4111, the detection sample injection mechanism 3 is provided on one side of the conveyor belt 411, and the detection sample injection mechanism 3 is used to inject the detection sample into the glass slide assembly 412, the second detection camera 416 is provided above the conveyor belt 411, and the microscope assembly 415 is connected below the second detection camera 416; the conveyor belt 411 transports the glass slide assembly 412 to the bottom of the microscope assembly 415.

[0031] Furthermore, there are two slide stabilizing clamps 413, which are respectively arranged at the test sample injection mechanism 3 and the second test camera 416. The slide stabilizing clamps 413 include two first electromagnetic push rods 4131 arranged on both sides of the conveyor belt 411. The ends of the first electromagnetic push rods 4131 are provided with clamping blocks 4132. When the first electromagnetic push rods 4131 push the clamping blocks 4132 out, the clamping blocks 4132 press against both sides of the slide assembly 412. Ensure that the slide assembly 412 is stable and its orientation remains unchanged, which is convenient for injecting test samples and conducting microscopic observations.

[0032] Furthermore, the slide assembly 412 includes a frame 4121, a transparent glass slide 4122, a light board 4123 and a magnetic base 4124, the light board 4123 is arranged above the magnetic base 4124, two parallel transparent glass slides 4122 are arranged above the light board 4123, there is a gap between the two transparent glass slides 4122, the frame 4121 is arranged on three sides of the magnetic base 4124, the frame 4121 blocks the gap on three sides of the two transparent glass slides 4122, and leaves one side as an opening for injecting the test sample, the light board 4123 has a built-in battery; the mounting base 4111 is magnetic, and the magnetic base 4124 is adsorbed on the mounting base 4111; the conveyor belt 411 is away from the A replacement mechanism 417 is provided on the other side of the detection sample injection mechanism 3, and the replacement mechanism 417 is used to replace the slide assembly 412 on the conveyor belt 411. The replacement mechanism 417 includes a rotating bracket 4171 and two second electromagnetic push rods 4172. The rotating bracket 4171 rotates under the drive of a motor, and a second electromagnetic push rod 4172 is provided at each end of the rotating bracket 4171. The second electromagnetic push rod 4172 is provided with a magnetic attraction part, and the material of the frame 4121 is metal that can be attracted by a magnet. The dust cover 414 is provided with a replacement port 4141, and the replacement port 4141 is located at the replacement mechanism 417. The staff can take out the slide assembly 412 that has been microscopically inspected at the replacement port 4141.

[0033] Furthermore, it also includes a controller 5, and the culture dish conveying device 2, the detection sample injection mechanism 3, the detection sample packaging mechanism 1 and the detection device 4 are all electrically connected to the detection device 4; the controller 5 is provided with a packaging control module 51, a culture dish conveying control module 52, a sample injection control module 53 and a detection control module 54, and the packaging control module 51, the culture dish conveying control module 52, the sample injection control module 53 and the detection control module 54 are respectively used to control the detection sample packaging mechanism 1, the culture dish conveying device 2, the detection sample injection mechanism 3 and the detection device 4.

[0034] Furthermore, the controller 5 is provided with an image detection module 55 and a storage module 56, and the image detection module 55 includes a microorganism morphology recognition unit 551, a counting unit 552, a colony morphology recognition unit 553, an area recognition unit 554 and a cloud database access unit 555; the microorganism morphology recognition unit 551 is used to identify the microorganisms in the image taken by the second detection camera 416 through the microscope component 415, the counting unit 552 is used to record the number of each microorganism, the colony morphology recognition unit 553 is used to identify the microorganism type of the colony photographed by the first detection camera 415, and the area recognition unit 554 is used to identify the area of ​​the microorganism colony; the images taken by the first detection camera 415 and the second detection camera 416 are stored in the storage module 56; the cloud database access unit 555 is used to access various microbial microscopic images and images of various microbial colonies stored in the cloud database, and the output end of the cloud database access unit 555 is connected to the input end of the microorganism morphology recognition unit 551 and the colony morphology recognition unit 553. After the colony morphology recognition unit 553 recognizes the type of microorganism, the content of microorganisms in the sample can be evaluated according to the growth environment, growth time and colony growth of the microorganisms.

[0035] Furthermore, the controller 5 further includes an environment information collection module 57 and an environment control module 58. Each of the compartments 4211 is provided with an environment detection sensor 4214. The environment information collection module 57 is used to obtain the environment monitoring data measured by each environment detection sensor 4214. The environment control module 58 is used to control the operation of the environment control device 4213. The output end of the environment information collection module 57 is connected to the input end of the environment control module 58. The environment control module 58 controls the operation of the environment control device 4213 according to the environment detection data fed back by the environment information collection module 57.

[0036] Furthermore, it also includes an interactive device 6, which includes a display. The controller 5 also includes a report generating module 59. The output ends of the environmental information acquisition module 57 and the image detection module 55 are connected to the input end of the report generating module 59. The report generating module 59 summarizes the detection results to generate a detection report, and sends it to the storage module 56. The staff can query it through the interactive device 6.

[0037] The beneficial effects of the microbial content detection equipment of dairy products of the present invention are as follows: high automation and accuracy, through the automated test sample packaging, injection and culture process, the accuracy and repeatability of the operation are improved, and human errors are reduced; the detection device can process multiple samples at the same time, which improves the detection efficiency and shortens the detection time; aseptic operation, the equipment is set in a sterile laboratory to avoid external microorganisms from contaminating the test samples, ensuring the accuracy of the test results; diversified culture, different bacterial colony culture dishes use different culture media, which is conducive to the growth of different microorganisms, and improves the coverage and accuracy of the detection, and through the coordinated use of the environmental information acquisition module and the environmental control module, the equipment can adjust the culture conditions according to the real-time environmental monitoring data to ensure the best growth environment for different types of microorganisms, avoiding the impact of poor microbial growth environment The colony growth conditions can cause large detection errors; the first detection camera takes pictures regularly to record the colony growth conditions, so the growth dynamics of microorganisms can be monitored in real time; the positioning system of the laser transmitter and receiver is used to ensure the precise position of the mobile platform, ensuring that the first detection camera can clearly take pictures of the colony culture dish; the image detection module is used to identify the microbial morphology and colony morphology, and the microbial species and quantity are automatically identified, which reduces the workload of manual analysis and improves accuracy; through the cloud database access unit, the equipment can access a large amount of microbial image data, improves the accuracy of identification, and facilitates data storage and management; after identifying the microbial species, it can also evaluate the content of microorganisms in the sample according to the growth environment, time and colony growth conditions of the microorganisms, providing important data support for the quality and safety of dairy products.

[0038] The present invention and its embodiments are described above, which is not restrictive. What is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual content is not limited to this. In short, if ordinary technicians in this field are inspired by it and do not deviate from the purpose of the invention, they can creatively design structural methods and embodiments similar to the technical scheme, which should all fall within the scope of protection of the present invention.

Claims

1. A device for detecting the microbial content of dairy products, characterized in that: The invention comprises a test sample packaging mechanism (1), a culture dish conveying device (2), a test sample injection mechanism (3), and a test device (4); the test equipment is arranged in a sterile laboratory, and the test device (4) comprises a microscopic test device (41) and a colony culture test device (42); the test device (4) is used to test the microbial content of the test sample; the microscopic test device (41) is used to perform microscopic observation on a glass slide carrying the test sample and take an image for counting, and the colony culture test device (42) is used to culture colonies using a colony culture dish containing the test sample; The culture dish conveying device (2) is used to convey the bacterial colony culture dish. There are two test sample injection mechanisms (3). The test sample packaging mechanism (1) is used to convey the dairy product test sample to the two test sample injection mechanisms (3) respectively. One of the test sample injection mechanisms (3) is used to inject the test sample into the bacterial colony culture dish on the culture dish conveying device (2), and the other test sample injection mechanism (3) is used to inject the test sample into the glass slide.

2. A dairy product microbial content detection device according to claim 1, characterized in that: The colony culture detection device (42) comprises a culture cabinet (421), a track (422), a first detection camera (423) and an access robot arm (424); the culture cabinet (421) is provided with a plurality of compartments (4211); a culture dish positioning groove (425) is provided at the bottom of each compartment (4211); an electric-controlled switch door (4212) is provided on the side of each compartment (4211) of the culture cabinet (421); and an environmental control device (4213) is provided in each compartment (4211); The top of the culture cabinet (421) is made of transparent material. The track (422) is arranged above the culture cabinet (421). The track (422) passes above each of the compartments (4211). A moving platform (4221) is installed on the track (422). The moving platform (4221) can move along the track (422) driven by a motor. The first detection camera (423) is installed below the moving platform (4221). The access robot arm (424) is installed above the moving platform (4221). The access robot arm (424) is used to deliver the colony culture dish on the culture dish conveying device (2) into the compartment (4211).

3. A dairy product microbial content detection device according to claim 2, characterized in that: A laser receiver is also installed below the mobile platform (4221), and a laser transmitter is provided on one side of the culture dish positioning groove (425). The laser transmitter receives the laser emitted by the laser receiver for locating the position of the mobile platform (4221), and the laser receiver is electrically connected to the mobile platform (4221).

4. A dairy product microbial content detection device according to claim 2, characterized in that: The microscopic detection device (41) comprises a conveyor belt (411), a glass slide assembly (412), a glass slide stabilizing fixture (413), a dust cover (414), a microscope assembly (415) and a second detection camera (416); the conveyor belt (411), the glass slide assembly (412), the glass slide stabilizing fixture (413), the microscope assembly (415) and the second detection camera (416) are all arranged in the dust cover (414); the conveyor belt (411) adopts chain drive, and a plurality of mounting bases (414) are evenly fixed on the surface of the conveyor belt (411). 111), the glass slide assembly (412) is mounted on the mounting base (4111), the detection sample injection mechanism (3) is provided on one side of the conveyor belt (411), and the detection sample injection mechanism (3) is used to inject the detection sample into the glass slide assembly (412), the second detection camera (416) is provided above the conveyor belt (411), and the microscope assembly (415) is connected below the second detection camera (416); the conveyor belt (411) transports the glass slide assembly (412) to the bottom of the microscope assembly (415).

5. A dairy product microbial content detection device according to claim 4, characterized in that: There are two glass slide stabilizing clamps (413), which are respectively arranged at the detection sample injection mechanism (3) and the second detection camera (416). The glass slide stabilizing clamps (413) include two first electromagnetic push rods (4131) arranged on both sides of the conveyor belt (411) relative to each other. The ends of the first electromagnetic push rods (4131) are provided with clamping blocks (4132). When the first electromagnetic push rods (4131) push the clamping blocks (4132) out, the clamping blocks (4132) abut against both sides of the glass slide assembly (412).

6. The device for detecting microbial content of dairy products according to claim 4, characterized in that: The slide assembly (412) comprises a frame (4121), a transparent glass slide (4122), a light board (4123) and a magnetic base (4124); the light board (4123) is arranged above the magnetic base (4124); two parallel transparent glass slides (4122) are arranged above the light board (4123); a gap exists between the two transparent glass slides (4122); the frame (4121) is arranged on three sides of the magnetic base (4124); the frame (4121) blocks the gaps on three sides of the two transparent glass slides (4122) and leaves one side as an opening for injecting a test sample; the light board (4123) has a built-in battery; the mounting base (4111) is magnetic; the magnetic base (4124) is adsorbed on the mounting base (4111) 11); a replacement mechanism (417) is provided on the other side of the conveyor belt (411) away from the detection sample injection mechanism (3); the replacement mechanism (417) is used to replace the glass slide assembly (412) on the conveyor belt (411); the replacement mechanism (417) comprises a rotating bracket (4171) and two second electromagnetic push rods (4172); the rotating bracket (4171) rotates under the drive of a motor; two ends of the rotating bracket (4171) are respectively provided with a second electromagnetic push rod (4172); the second electromagnetic push rod (4172) is provided with a magnetic attraction part; the frame (4121) is made of metal that can be attracted by a magnet; the dust cover (414) is provided with a replacement port (4141), and the replacement port (4141) is located at the replacement mechanism (417).

7. The device for detecting microbial content in dairy products according to claim 4, characterized in that: The invention also comprises a controller (5), wherein the culture dish conveying device (2), the test sample injection mechanism (3), the test sample packaging mechanism (1) and the test device (4) are all electrically connected to the test device (4); the controller (5) is provided with a packaging control module (51), a culture dish conveying control module (52), a sample injection control module (53) and a test control module (54); the packaging control module (51), the culture dish conveying control module (52), the sample injection control module (53) and the test control module (54) are respectively used to control the test sample packaging mechanism (1), the culture dish conveying device (2), the test sample injection mechanism (3) and the test device (4).

8. The device for detecting microbial content in dairy products according to claim 7, characterized in that: The controller (5) is provided with an image detection module (55) and a storage module (56); the image detection module (55) comprises a microorganism morphology recognition unit (551), a counting unit (552), a colony morphology recognition unit (553), an area recognition unit (554) and a cloud database access unit (555); the microorganism morphology recognition unit (551) is used to recognize microorganisms in an image captured by the second detection camera (416) through the microscope assembly (415); the counting unit (552) is used to record the number of each microorganism; and the colony morphology recognition unit (553) is used to The area recognition unit (554) is used to identify the type of microorganisms of the colony photographed by the first detection camera (415); the images photographed by the first detection camera (415) and the second detection camera (416) are stored in the storage module (56); the cloud database access unit (555) is used to access various microbial microscopic images and various microbial colony images stored in the cloud database, and the output end of the cloud database access unit (555) is connected to the input ends of the microbial morphology recognition unit (551) and the colony morphology recognition unit (553).

9. The device for detecting microbial content of dairy products according to claim 8, characterized in that: The controller (5) further comprises an environment information acquisition module (57) and an environment control module (58); each of the compartments (4211) is provided with an environment detection sensor (4214); the environment information acquisition module (57) is used to obtain environment monitoring data measured by each environment detection sensor (4214); the environment control module (58) is used to control the operation of the environment control device (4213); and the output end of the environment information acquisition module (57) is connected to the input end of the environment control module (58).

10. The device for detecting microbial content of dairy products according to claim 9, characterized in that: The system further comprises an interactive device (6), wherein the interactive device (6) comprises a display. The controller (5) further comprises a report generating module (59). The output ends of the environmental information acquisition module (57) and the image detection module (55) are connected to the input end of the report generating module (59). The report generating module (59) generates a detection report by summarizing the detection results and sends it to the storage module (56). The staff can query the report through the interactive device (6).

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