A microbiological processing workstation

Abstract

The present application relates to the field of microorganism detection, and specifically to a microorganism processing workstation, comprising a work platform and functional modules arranged on the work platform. The functional modules comprise a plate loading module for storing plates, a sample tube loading module for loading samples, a first mechanical arm for transferring plates and sample tubes from the plate loading module and the sample tube loading module to a streaking station and a cap opening station, a sample pretreatment module comprising a second mechanical arm connected with an inoculation assembly, and under the drive of the second mechanical arm, the inoculation assembly sticks and inoculates bacteria liquid in a sample tube at the cap opening station into a plate at the streaking station, and a plate unloading module for receiving and storing plates transferred from the streaking station. The workstation adopts a framework of mechanical arms and standardized functional modules, and different users can freely add or subtract or combine functional modules according to actual sample processing needs, thereby expanding the application scenarios.

Description

Technical Field

[0001] This invention relates to the field of microbial detection technology, and in particular to a microbial processing workstation. Background Technology

[0002] Microbiological testing is a core component in fields such as food safety, clinical diagnosis, drug quality control, environmental monitoring, and bioscience research. Traditional microbiological testing procedures (such as enrichment, isolation, purification, identification, and counting) heavily rely on manual operation. Laboratory personnel must repeatedly perform tedious steps such as sample dilution, culture medium pouring, plating, streaking, and reagent addition. This traditional manual operation mode has many drawbacks, including the risk of cross-contamination, low efficiency, and poor result reproducibility. While laboratory automation technology is gradually being introduced into the field of microbiological testing, integrating multiple single-function devices into a single testing platform still presents the following significant shortcomings:

[0003] 1. Risk of cross-contamination: Although disposable pipette tips are used, cross-contamination between samples may still occur during high-speed, high-density operations due to sample aerosols, droplet splashes, or accidental contamination on the outer surface of the robotic arm / pipette.

[0004] 2. Insufficient flexibility: Most systems are designed with fixed workflows, making it difficult to quickly adapt to non-standard or innovative experimental procedures.

[0005] 3. High footprint and cost: The high purchase and maintenance costs of highly integrated and complex systems make them unsuitable for small and medium-sized laboratories.

[0006] 4. Low intelligence of core tools: The existing inoculation loop has a single function (only heat sterilization), which cannot objectively monitor and quantify the key "touch" action, and still relies on the operator's experience or expensive vision systems.

[0007] Therefore, how to solve the above problems in automated microbial detection and processing equipment or systems is a question that needs to be considered by those skilled in the art. Summary of the Invention

[0008] The purpose of this invention is to provide a microbial processing workstation that integrates an intelligent inoculation loop capable of automatically detecting impedance changes with a modular hardware platform, enabling high-precision, pollution-free, and flexible fully automated pretreatment of various samples, thereby solving the problems in the existing technology.

[0009] The technical solution of the present invention is: a microbial processing workstation, comprising:

[0010] A working platform on which multiple functional modules can be installed; the multiple functional modules include:

[0011] The plate feeding module is used to store plates;

[0012] The sample tube loading module is used for loading samples.

[0013] The first robotic arm can transfer the petri dishes and sample tubes from the petri dish loading module and the sample loading module to the scribing station and the cap opening station.

[0014] The sample pretreatment module includes a second robotic arm connected to an inoculation component. Driven by the second robotic arm, the inoculation component picks up the bacterial solution from the sample tube at the cap opening station and inoculates it into a petri dish at the streaking station.

[0015] The plate feeding module, driven by the second robotic arm, receives and stores the plate transferred from the marking station;

[0016] The inoculation assembly includes a metal ring and a buffer device connecting the metal ring. The metal ring is connected to the second robotic arm through the buffer device. Control circuits are connected to both ends of the metal ring. The control circuits include a power drive module, an impedance detection module, and a switching switch controlled by the main control unit for switching between heating mode and detection mode.

[0017] Preferably, in the heating mode, an electric current is applied to the metal ring to achieve sterilization by generating high temperature;

[0018] In the detection mode, an electric current is applied to the metal ring, and the change in resistance is measured by a high-frequency AC signal to determine whether the bacterial solution has been successfully collected.

[0019] Preferably, the detection method of the impedance detection module includes the following steps:

[0020] In detection mode, a high-frequency AC detection signal is applied to the dry metal ring, and its initial impedance is measured as the original impedance signal.

[0021] The metal ring is controlled to pick up the sample to be tested;

[0022] After collecting the sample, a high-frequency AC detection signal is applied to the metal ring again, and the impedance of the metal ring is measured.

[0023] The impedance change value is calculated and compared with the preset dynamic threshold of the classification. If the value exceeds the threshold, it is determined that the bacterial solution has been successfully collected.

[0024] Preferably, the flat plate feeding module includes a first transfer component, a first hopper component, and a first isolation cover, wherein the first transfer component can transfer flat plates from the first hopper component;

[0025] The first hopper assembly includes a first limiting chamber for placing a flat dish. The lower end of the first limiting chamber is provided with a U-shaped first opening. The first opening extends inward to form a first supporting part. The lower edge of the flat dish is connected to the first supporting part.

[0026] The first transfer assembly includes a first carrier plate, a first drive device for driving the first carrier plate to move away from and towards the first opening, and a first push block connected to the first carrier plate;

[0027] The first driving device drives the first pusher to move toward the opening of the first opening. The first pusher pushes the flat plate, causing the flat plate to slide on the first support part toward the opening end of the first opening and detach from the first support part onto the first carrier plate to complete the removal of the flat plate.

[0028] The first isolation cover is set on the workbench, and the first transfer component and the first hopper component are both set inside the first isolation cover; and a first disinfection device is set inside the first isolation cover.

[0029] Preferably, the petri dish loading module includes multiple sample holders of different sizes for placing sample tubes of different sizes.

[0030] Preferably, the first robotic arm is provided with at least two first clamping devices of different specifications, and the first clamping devices are used to clamp the petri dish on the first carrier plate and the sample tube on the sample holder respectively, and transfer them sequentially or simultaneously.

[0031] Preferably, a fixed gripper is provided at the opening station to hold the sample tube body so as to facilitate the opening of the sample tube cap.

[0032] A platform is provided at the marking station, and the flat dish is placed on the platform.

[0033] Preferably, multiple inoculation components are provided and are arranged in a rotationally symmetrical manner, and are simultaneously connected to the second robotic arm through the rotation drive device.

[0034] Preferably, the plate feeding module includes a second transfer component, a second hopper component, a lifting component, and a second isolation cover. The second transfer component transfers and receives the inoculated plate, and the lifting component lifts the plate into the second hopper component for storage.

[0035] The second transfer assembly includes a second carrier plate and a second drive device connected to the second carrier plate; under the drive of the second drive device, the second carrier plate carries the flat plate and is transferred to a position directly above the lifting assembly and directly below the second hopper assembly;

[0036] The second hopper assembly includes a second limiting hopper for storing a flat plate. Multiple limiting blocks are rotatably connected to the bottom of the second limiting hopper. The lifting assembly lifts the flat plate upward and pushes the limiting wheel to rotate and make way. Then the limiting blocks rotate in the opposite direction to form a limit, thereby restricting the downward movement of the flat plate.

[0037] The second isolation cover is set on the workbench, and the second transfer component, the second hopper component, and the lifting component are all set inside the second isolation cover. A second disinfection device is also set inside the second isolation cover.

[0038] Preferably, the functional module further includes a labeling device, and the first robotic arm applies the label at the labeling device before transferring the flat plate to the marking station.

[0039] Compared with the prior art, the advantages of the present invention are:

[0040] (1) Intelligent inoculation is set up. Under the drive of the intelligent control circuit, the metal ring has the dual functions of heating sterilization and detection, which effectively eliminates the detection error caused by insufficient sample adhesion and effectively improves the reliability and repeatability of the results.

[0041] (2) The workstation adopts a structure of robotic arm plus standardized functional modules. Different users can freely add, remove or combine functional modules according to their actual needs for processing samples, which reduces the entry cost of complex systems and expands the application scenarios.

[0042] (3) The workstation is equipped with multiple protections that combine physical isolation and active purification, providing a clean and safe physical environment for sample processing and minimizing the risk of cross-contamination. Attached Figure Description

[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0044] Figure 1 This is a schematic diagram of the structure of the microbial treatment workstation described in this invention. Figure 1 ;

[0045] Figure 2 This is a schematic diagram of the structure of the microbial treatment workstation described in this invention. Figure 2 ;

[0046] Figure 3 This is a top view of the microbial treatment workstation described in this invention.

[0047] Figure 4 This is a schematic diagram of the structure of the plate feeding module described in this invention;

[0048] Figure 5 This is a schematic diagram of the structure of the first transfer component of the present invention;

[0049] Figure 6 This is a schematic diagram of the structure of the first limiting chamber of the present invention;

[0050] Figure 7 This is a schematic diagram of the structure of the first robotic arm of the present invention;

[0051] Figure 8 This is a schematic diagram of the structure of the second robotic arm of the present invention;

[0052] Figure 9 This is a schematic diagram of the inoculation assembly described in this invention;

[0053] Figure 10 This is a schematic diagram of the structure of the flat plate feeding module described in this invention;

[0054] Figure 11 This is a schematic diagram of the structure of the second transfer component of the present invention;

[0055] Figure 12 This is a schematic diagram of the structure of the second limiting chamber of the present invention.

[0056] Among them: Work platform 1;

[0057] Flat plate feeding module 2, first transfer component 21, first push block 211, third drive device 212, first carrier plate 213, first drive device 214, first hopper component 22, first turntable 221, notch 2211, first limiting chamber 222, first bottom plate 223, clamping claw 224, first opening 2231, first support part 2232, first isolation cover 23, first disinfection device 231;

[0058] Sample tube loading module 3, sample holder 31;

[0059] First robotic arm 4, first gripping device 41;

[0060] Sample pretreatment module 5, opening station 5a, marking station 5b, fixing gripper 51, platform 52, second robotic arm 53, inoculation assembly 54, metal ring 541, buffer device 542, rotation drive device 543, second clamping device 55.

[0061] The components include: a flat plate feeding module 6, a second transfer assembly 61, a second carrier plate 611, a second drive device 612, a second hopper assembly 62, a second turntable 621, a through hole 6211, a second limiting hopper 622, a limiting block 623, a lifting assembly 63, a top plate 631, a fourth drive device 632, a second isolation cover 64, and a second disinfection device 641.

[0062] Labeling device 7. Detailed Implementation

[0063] The present invention will be further described in detail below with reference to specific embodiments:

[0064] like Figures 1-12 As shown, the microbial processing workstation of this invention is used for pretreatment of microorganisms for detection, that is, inoculating microbial samples from sample tubes into petri dishes to prepare for subsequent microbial culture and detection. This workstation adopts a modular design, with its core consisting of two multi-degree-of-freedom robotic arms and multiple standardized functional modules working collaboratively, and scheduled by intelligent control software to achieve high-precision, pollution-free, flexible, and fully automated pretreatment of various types of samples. Specifically:

[0065] like Figures 1-3 As shown, the system includes a work platform 1, and on the work platform 1 installed a petri dish loading module 2, a sample tube loading module 3, a first robotic arm 4, a sample pretreatment module 5, and a petri dish unloading module 6. The work platform 1 is equipped with an overall protective shell (not shown in the figure), and all functional modules are housed within the protective shell. A high-efficiency air filtration negative pressure unit (not shown in the figure) covering all functional modules can be installed on the top of the protective shell, forming a vertical laminar flow clean air barrier that continuously supplies clean air to the work surface, preventing external contaminants from falling in.

[0066] like Figures 4-6 As shown, the plate feeding module 2 is responsible for the storage and supply of plates. This module includes a first transfer component 21, a first hopper component 22, and a first isolation cover 23.

[0067] The first hopper assembly 22 includes a first turntable 221, which has multiple radially outwardly opening notches 2211 along its circumference. A first limiting chamber 222 for placing a flat dish is provided at each notch 2211. A first base plate 223 is provided at the bottom of the first limiting chamber 222, and the first base plate 223 has a U-shaped first opening 2231 and an inwardly extending first support portion 2232. The first opening 2231 corresponds to the notch 2211, and its width is slightly larger than the diameter of the flat dish. The first support portion 2232 is also U-shaped, and its width is slightly smaller than the diameter of the flat dish, so that when the flat dish is placed in the first limiting chamber 222, the lower edge of the flat dish overlaps the first support portion 2232.

[0068] The first transfer assembly 21 moves in the radial direction of the first turntable 221. The first pusher 211 is connected to the first carrier plate 213 via a third drive device 212 that can drive it to move in the vertical direction.

[0069] During material handling, the first drive device 214 drives the first carrier plate 213 and the first pusher block 211 to move radially inward along the first turntable 221 until the first pusher block 211 passes over the flat plate; the third drive device 212 drives the first pusher block 211 to move upward above the flat plate at the lowest point; then, the first drive device 214 drives the first carrier plate 213 and the first pusher block 211 to reset. During this process, the first pusher block 211 pushes the lowest flat plate, causing it to be pushed out from the first support portion 2232 and transferred to the first carrier plate 213, completing the material handling. To prevent multiple flat plates from being pushed out simultaneously, a locking gripper 224 is also provided at the first hopper assembly 22. While the first pusher block 211 pushes the lowest flat plate, the locking gripper 224 fixes the previous flat plate, ensuring that only the lowest flat plate is pushed out at a time.

[0070] In this embodiment, the entire flat plate feeding module 2 is placed inside the first isolation cover 23 and equipped with a first disinfection device 231 to maintain a clean environment. The first disinfection device 231 can be an ultraviolet lamp.

[0071] like Figures 1-3 As shown, the sample tube loading module 3 is responsible for sample supply. Its design is adaptable to various sample tube sizes, and it uses replaceable sample holders 31 to hold containers of different sizes, enhancing the system's flexibility. Each sample holder 31 can be connected to a drive mechanism at its bottom to move the sample holder 31 inside and outside the protective shell, avoiding direct contact between the sample tubes and other functional modules when manually handling them.

[0072] like Figure 7 As shown, the first robotic arm 4 is equipped with at least two first gripping devices 41 of different specifications, which can respectively grip the petri dishes delivered by the first carrier plate 213 and the sample tubes on the sample tube loading module 3. The first robotic arm 4 transfers these items to the subsequent workstation. Before transferring the petri dishes to the marking station, they can first pass through the labeling device 7, which automatically prints and affixes labels to the bottom of the petri dishes, and the barcode scanner behind can automatically scan the barcode information.

[0073] The samples are transported to the capping station 5a and the streaking station 5b. The capping station 5a is equipped with a fixed gripper 51 for holding the sample tube body and facilitating capping with the assistance of the first robotic arm 4. The streaking station 5b is equipped with a platform 52 for placing the petri dishes to be inoculated.

[0074] like Figures 8-9As shown, the core sample processing is completed by the sample pretreatment module 5. The sample pretreatment module 5 includes a second robotic arm 53 and an inoculation assembly 54 connected thereto. Multiple inoculation assemblies 54 can be provided, arranged in a rotationally symmetrical manner. Each inoculation assembly 54 includes a metal ring 541, which is connected to a rotation drive device 543 via a buffer device 542, and then to the second robotic arm 53. The rotation drive device 543 can drive the inoculation assembly 54 to rotate, allowing multiple inoculation assemblies 54 to be used in turn, ensuring sufficient time for the metal ring 541 to cool naturally after high-temperature sterilization. The buffer device 542 can be a spring or other device with elastic cushioning capabilities to prevent the metal ring 541 from making rigid contact with the petri dish surface during streaking, thus avoiding deformation of the metal ring 541 or damage to the petri dish surface. In other embodiments, the multiple inoculation assemblies 54 can be equipped with metal rings 541 of different specifications, and the corresponding metal ring 541 can be automatically selected by the rotation drive device 543 according to usage requirements.

[0075] The metal ring 541 is connected to two ends with an intelligent control circuit. This control circuit includes a power drive module, an impedance detection module, and a switching switch controlled by the main control unit, enabling the metal ring 541 to switch between heating and detection modes. In heating mode, a large current and voltage are applied to the metal ring 541 to generate high temperature and achieve sterilization. In detection mode, a high-frequency, low-current AC signal is applied, and the success of bacterial collection is determined by measuring the change in impedance of the metal ring 541. The specific impedance detection steps include: first, measuring the initial impedance of the metal ring 541 when it is dry as a baseline; then controlling the metal ring 541 to pick up the sample to be tested; measuring the impedance again after picking up; finally, calculating the impedance change value and comparing it with a preset dynamic threshold. If the threshold is exceeded, the bacterial collection is considered successful. The dynamic threshold is a threshold for classification, not a fixed value, but a pre-established standard library based on different samples. Within the standard library, a correspondence between impedance values ​​and concentrations is established according to different sample types. For example, for urine samples, the bacterial concentration is 1×10⁻⁶. 5 The impedance at a CFU / mL concentration of 10 μL is 30 Ω. Before sampling, the urine sample concentration should be diluted to 1 × 10⁻⁶. 5 The concentration is CFU / mL, the dynamic threshold is set to 30Ω, and the amount of metal ring applied is greater than 10μm to be considered acceptable. After application, the impedance change value is compared with the dynamic threshold. If it is greater than 30Ω, it indicates that the amount applied is greater than 10μm, which meets the requirements.

[0076] In other embodiments, the heating mode of the metal ring 541 can be omitted according to actual needs. The metal can then be sterilized at high temperature using a separate sterilizer. The specific structure of the sterilizer will not be described in detail in this embodiment.

[0077] The process of collecting bacterial solution is as follows: the second robotic arm 53 drives the metal ring to collect the bacterial solution in the sample tube at the opening station 5a and inoculate it into the petri dish at the streaking station 5b. Multiple streaking types can be set as needed.

[0078] The second robotic arm 53 is also connected to a second clamping device 55. When the petri dish is placed on the stage 52, the cover of the petri dish is removed by the second clamping device 55, and then covered again after the inoculation is completed. The petri dish is then clamped again and transferred to the second carrier plate of the petri dish unloading module 6.

[0079] like Figures 10-12 As shown, the petri dishes after inoculation are received and stored by the petri dish unloading module 6. The petri dish unloading module 6 includes a second transfer component 61, a second hopper component 62, a lifting component 63, and a second isolation cover 64.

[0080] The second hopper assembly 62 includes a second turntable 621 with multiple circumferentially evenly arranged through holes 6211. Multiple second limiting hoppers 622 are provided, each corresponding to one of the through holes 6211. Multiple limiting blocks 623 are rotatably mounted at the bottom of the second limiting hopper 622. These limiting blocks 623 are arranged circumferentially and are all connected to the second limiting hopper 622 via torsion springs (not shown in the figure). Under no external force, they are in a locked state, meaning the circumference diameter formed by the multiple limiting blocks 623 is smaller than the diameter of the dish, allowing the dish to be placed above the limiting blocks 623. Under external force, they are in an unlocked state, meaning the limiting blocks 623 rotate along their rotating connection points, and the resulting circumference diameter is larger than the diameter of the dish, allowing the dish to pass through.

[0081] The second transfer assembly 61 includes a second carrier plate 611 and a second drive device 612 for driving the second carrier plate 611 to move.

[0082] The lifting assembly 63 is located directly below the through hole 6211, and includes a top plate 631 and a fourth drive device 632 for driving the top plate 631 to move vertically.

[0083] When the flat dish is being collected, after the second carrier plate 611 receives the flat dish, it moves under the drive of the second drive device 612 to a position directly below the through hole 6211 and simultaneously directly above the top plate 631. The fourth drive device 632 drives the top plate 631 to move upward, passing through the second carrier plate 611 and supporting the flat dish as it continues to move upward through the through hole 6211. The flat dish then continues to move upward and abuts against the limiting block 623, causing the limiting block 623 to rotate and enter an unlocked state. After the flat dish has passed through, the limiting block 623 rotates in the opposite direction and resets under the action of the torsion spring, entering a locked state. Afterward, the top plate 631 resets, and the limiting block 623 supports the flat dish to prevent it from falling. The collection of the flat dish is then complete.

[0084] In this embodiment, the entire flat plate feeding module 6 is placed inside the second isolation cover 64 and equipped with a second disinfection device 641 to maintain a clean environment. The second disinfection device 641 can be an ultraviolet lamp.

[0085] In addition, it should be noted that, in order to deal with complex samples such as viscous and uneven samples, the system can also integrate functional modules such as ultrasonic stations in the sample pretreatment components to perform ultrasonic vibration treatment on the sample tubes to ensure the representativeness of the samples.

[0086] In this invention, a multi-layered protection system combining physical isolation and active purification is formed by a covered air filter negative pressure unit, as well as physical isolation covers and active disinfection devices for each module, which minimizes the risk of cross-contamination.

[0087] The entire system has a compact structure and a small footprint. Users can select appropriate formulas and freely add, remove, or combine functional modules in the software according to the type of samples being processed and the experimental procedures required. After the system is powered on, it can automatically identify the type and location of newly installed modules and complete the calibration without the need for complex programming and debugging, achieving high flexibility and ease of use.

[0088] The above embodiments are merely illustrative of the technical concept and features of the present invention, intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and should not be construed as limiting the scope of protection of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the present invention is defined by the appended claims rather than the foregoing description, and thus all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention.

Claims

1. A microbiological processing workstation, characterized in that: The utility model relates to a kind of automatic inoculation device, including: Working platform, multiple functional modules can be installed on it; Multiple functional modules include: Flat dish loading module for storing flat dish, including first transfer assembly, first bin assembly and first isolation cover, the first transfer assembly can transfer flat dish in the first bin assembly; Sample tube loading module for sample loading; First mechanical arm, which can transfer flat dishes and sample tubes of the flat dish loading module and sample loading module to the scribe station and the cap opening station; Sample pretreatment module, including second mechanical arm, inoculation assembly is connected to the second mechanical arm, and under the drive of the second mechanical arm, the inoculation assembly sticks and inoculates bacteria liquid in sample tube at the cap opening station into flat dish at the scribe station; Flat dish unloading module, under the drive of the second mechanical arm, receiving and storing flat dish transferred at the scribe station, including second transfer assembly, second bin assembly, jacking assembly and second isolation cover, the second transfer assembly transfers receiving and inoculated flat dish, the jacking assembly jacks up the flat dish to store in the second bin assembly; Wherein, the inoculation assembly includes metal ring and the metal ring connects buffer device, the metal ring is connected with the second mechanical arm through the buffer device;Two ends of the metal ring are connected with control circuit, the control circuit includes power drive module, impedance detection module and switching switch controlled by main control unit, for switching between heating mode and detection mode two modes; In the heating mode, current is applied to the metal ring, and sterilization is realized by generating high temperature; In the detection mode, current is applied to the metal ring, and the change of resistance is measured by high-frequency alternating current signal to determine whether the bacteria liquid is successfully stuck; The detection method of the impedance detection module includes the following steps: In detection mode, apply high-frequency alternating current detection signal to the dry metal ring, and measure its initial impedance as the original impedance signal; Control the metal ring to dip the sample to be tested; After dipping the sample, high-frequency alternating current detection signal is applied to the metal ring again, and the impedance of the metal ring is measured; Calculate the impedance change value, and compare it with the preset dynamic threshold of different categories. If the threshold is exceeded, it is determined that the bacteria liquid is successfully dipped.

2. A microbiological processing station according to claim 1, characterised in that: The first bin assembly includes a first limiting bin for placing flat dishes, and a U-shaped first opening is provided at the lower end of the first limiting bin. The first opening extends inward to form a first supporting portion, and the lower end edge of the flat dish is connected to the first supporting portion. The first transfer assembly includes a first carrier plate, a first drive device for driving the first carrier plate to move away from and approach the first opening, and a first push block connected to the first carrier plate. The first drive device drives the first push block to move towards the opening of the first opening. The first push block pushes the flat dish so that the flat dish slides on the first supporting portion towards the opening end of the first opening and separates from the first supporting portion to the first carrier plate to complete the flat dish taking. The first isolation cover is arranged on the workbench, and the first transfer assembly and the first bin assembly are arranged in the first isolation cover. A first disinfection device is arranged in the first isolation cover.

3. A microbiological processing station according to claim 2, characterised in that: The plate loading module comprises a plurality of sample supports of different specifications for placing sample tubes of different specifications.

4. A microbiological processing station according to claim 3, characterised in that: The first mechanical arm is provided with at least two first clamping devices of different specifications, and the first mechanical arm clamps the plate on the first carrier plate and the sample tube on the sample support through the two first clamping devices respectively, and sequentially or simultaneously transfers.

5. A microbiological processing station according to claim 1, characterized in that: The uncapping station is provided with a fixed clamping jaw, which clamps the sample tube body to facilitate the uncapping of the sample tube cover. The scribing station is provided with a carrier, and the plate is placed on the carrier.

6. A microbiological processing station according to claim 1, characterized in that: The inoculation assembly is provided with a plurality of rotationally symmetrical assemblies and is connected to the second mechanical arm through a rotary driving device.

7. A microbiological processing station according to claim 1, characterized in that: The second transfer assembly comprises a second carrier plate and a second driving device connected to the second carrier plate. Under the driving of the second driving device, the second carrier plate carries the plate and is transferred to the top of the lifting assembly, and is located below the second storage assembly at the same time. The second storage assembly comprises a second limiting bin for storing the plate, and a plurality of limiting blocks are rotationally connected to the bottom of the second limiting bin. The second isolation cover is arranged on the workbench, and the second transfer assembly, the second storage assembly and the lifting assembly are arranged in the second isolation cover.

8. A microbiological processing station according to claim 1, characterized in that: The functional module further comprises a labeling device, and the first mechanical arm transfers the plate to the scribing station and labels at the labeling device.

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