Automatic homogenizing device and system for food microorganism detection and use method of automatic homogenizing device and system

Abstract

The invention discloses an automatic homogenizing device and system for food microbiological detection and a using method of the automatic homogenizing device and system, and belongs to the technical field of food microbiological detection.The automatic homogenizing device comprises a liquid injection mechanism and a stirring mechanism which are installed on an installation base, and the liquid injection mechanism comprises a first lifting driving piece installed on the installation base; the executing end of the first lifting driving part is connected with a first rotating driving part, the executing end of the first rotating driving part is connected with a guide pipe, the end, away from the first rotating driving part, of the guide pipe is sleeved with a nozzle, and the guide pipe is connected with a liquid feeding assembly through a rotating connector; the stirring mechanism comprises a second lifting driving part mounted on the mounting base, the execution end of the second lifting driving part is connected with a second rotating driving part, the execution end of the second rotating driving part is provided with a connecting pipe, and the end, away from the second rotating driving part, of the connecting pipe is sleeved with a stirring part. According to the device, traditional discrete and variable operations such as uncovering, dumping, shaking and tool replacing depending on manual experience are integrated into a coherent and controlled automatic process.

Description

Technical Field

[0001] This invention relates to the field of food microbial detection technology, specifically to an automatic homogenizing device, system, and method of using food microbial detection. Background Technology

[0002] In import and export trade, customs bears the important responsibility of conducting statutory inspection and quarantine on imported and exported food to prevent harmful organisms and pathogenic microorganisms from entering or leaving the country through food. Currently, the initial homogenization step for microbial testing of food samples is generally performed manually: in a sterile room, the operator weighs the intercepted sample, manually opens the cap, pours out the diluent, closes the cap again, and finally completes homogenization by manually shaking.

[0003] However, in the specific application scenario of customs, traditional manual homogenization methods have revealed the following prominent contradictions that urgently need to be addressed:

[0004] The contradiction between high-throughput demand and low efficiency: Port clearance is time-sensitive, with numerous batches and diverse categories of goods, requiring rapid response in the testing process. The cumbersome and time-consuming manual homogenization process has become a bottleneck restricting overall testing efficiency, making it difficult to meet the dual requirements of rapid customs clearance and strict supervision at ports.

[0005] The contradiction between high-risk samples and insufficient protection: Intercepted food, especially products from epidemic areas, may carry unknown, highly pathogenic microorganisms. Manual opening and shaking can easily generate harmful aerosols, posing a threat to the biosafety of frontline inspection personnel. Current technology lacks effective physical isolation measures in this high-risk process.

[0006] The contradiction between aseptic requirements and open operation: The manual "open-pour-close" process completely exposes the sample container opening. Even under a clean bench, it is impossible to completely eliminate environmental aerosol contamination, which may lead to false positive results, erroneously delaying customs clearance, or false negative results, causing quarantine loopholes.

[0007] Existing technologies using ordinary shakers or agitators can only replace the "shaking" step, while the most critical and risky step of "adding diluent" still requires manual opening of the lid, which cannot meet the customs' requirements for efficiency, safety, and standardization.

[0008] Therefore, in response to the special needs of food microbial testing at customs ports, there is an urgent need for an integrated solution that can achieve "precise liquid injection without opening the cap and pouring" and "standardized mechanical homogenization". Summary of the Invention

[0009] The purpose of this invention is to address the problems existing in the prior art by providing an automatic homogenizing device, system, and method of using it for food microbial detection.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is: an automatic homogenizing device for food microbial detection, comprising a liquid injection mechanism and a stirring mechanism mounted on a mounting base. The liquid injection mechanism includes a first lifting drive component mounted on the mounting base, an execution end of the first lifting drive component connected to a first rotating drive component, an execution end of the first rotating drive component connected to a conduit, a nozzle sleeved at the end of the conduit away from the first rotating drive component, and a liquid delivery component connected to the conduit via a rotary joint.

[0011] The stirring mechanism includes a second lifting drive component mounted on a mounting base. The execution end of the second lifting drive component is connected to a second rotating drive component. The execution end of the second rotating drive component is provided with a connecting pipe. The end of the connecting pipe away from the second rotating drive component is sleeved with a stirring component.

[0012] Preferably, the first lifting drive component's actuating end is further provided with a first jacking drive component, and the actuating end of the first jacking drive component is connected to a first jacking ring via a first connecting rod, the first jacking ring being sleeved on the outer periphery of the conduit.

[0013] Preferably, a nozzle is sleeved at the end of the conduit away from the first rotary drive member, and a first ejector is provided on the outer periphery of the nozzle.

[0014] Preferably, the second lifting drive component is further provided with a second jacking drive component on its actuating end. The actuating end of the second jacking drive component is connected to a second jacking ring via a second connecting rod. The second jacking ring is sleeved on the outer periphery of the connecting pipe.

[0015] Preferably, the outer periphery of the agitator is provided with a second ejector.

[0016] Preferably, the end of the conduit away from the first rotary drive is provided with a first guide, the first guide having a channel communicating with the conduit inside, and the diameter of the first guide gradually increasing along the direction closer to the first rotary drive.

[0017] Preferably, a second guide is provided at the end of the connecting pipe away from the second rotary drive member, and the diameter of the second guide gradually increases along the direction close to the second rotary drive member.

[0018] Preferably, it further includes a waste collection assembly mounted on the mounting base. The waste collection assembly includes two first connecting plates mounted on the mounting base. Each first connecting plate is equipped with a horizontal drive component. The actuating end of the horizontal drive component is connected to a collection plate. A waste bin is detachably connected to the end of the first connecting plate away from the mounting base. A sliding groove is provided on the first connecting plate for the collection plate to slide.

[0019] The present invention also provides an automatic homogenization system for food microbial detection, which adopts any of the above-mentioned automatic homogenization devices for food microbial detection, including a controller and a conveying component. The controller is electrically connected to the first lifting drive, the first rotating drive, the first detaching drive, the second lifting drive, the second rotating drive, the second detaching drive, the liquid delivery component, the conveying component, and the horizontal drive.

[0020] This invention also provides an automated homogenization method for food microbial detection, using the aforementioned automated homogenization system for food microbial detection, comprising the following steps:

[0021] Sample preparation: Add the test sample to the sample container, place the sample container on the conveyor assembly, and the controller controls the sample container to move under the nozzle;

[0022] Liquid injection: The controller controls the first lifting drive to lower the tubing and nozzle into the sample container, controls the first rotating drive to rotate the nozzle, and controls the liquid delivery assembly to deliver liquid to the nozzle.

[0023] Sample transfer: The controller controls the transfer assembly to move the sample container below the stirrer;

[0024] Stirring: The controller controls the second lifting drive to lower the stirring piece into the sample container, and controls the second rotating drive to rotate the stirring piece.

[0025] Reset: The controller controls the first and second lifting drive components to drive the nozzle and stirring component to reset;

[0026] Waste removal: The controller controls two horizontal drive components to move two collection plates to below the nozzle and the agitator, respectively. It controls the first removal drive component to drive the first removal ring to remove the nozzle, and controls the second removal drive component to drive the second removal ring to remove the agitator.

[0027] Waste collection: The controller controls two horizontal drive components to drive two collection plates to reset. During the reset process of the collection plates, the nozzles and agitators are scraped off into the waste bin by the first connecting plate.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. This automated homogenizing device for food microbial testing integrates traditionally discrete and variable operations such as opening lids, pouring, shaking, and changing tools—which rely on manual experience—into a continuous and controlled automated process by adding diluent via an injection mechanism and stirring via a stirring mechanism. This reduces human intervention, eliminates fluctuations in homogenization results caused by differences in operator skill, and ensures the consistency and repeatability of test results. Each step is executed automatically by the device, enabling fast and continuous operation. It is particularly suitable for customs, quality inspection centers, and other applications requiring large-scale, rapid screening, effectively overcoming the efficiency bottleneck of manual operation.

[0030] 2. In this automatic homogenizing device for food microbial testing, the first detachment drive is used to drive the first connecting rod to slide the first detachment ring on the outer periphery of the conduit. When it is necessary to detach the nozzle sleeved on the conduit, the first detachment ring moves downward by pressing against the top of the conduit, causing the nozzle to fall off the conduit without the need for the operator to manually remove the nozzle.

[0031] 3. In this automatic homogenizing device for food microbial testing, the first ejector is used to cooperate with the first ejector ring, so that the first ejector ring can easily eject the first ejector and nozzle together from the guide tube. After setting the first ejector, the nozzle only needs to be set to the normal thickness. The second ejector is used to cooperate with the second ejector ring, so that the second ejector ring can easily eject the agitator. After setting the second ejector, the agitator only needs to be set to the normal thickness.

[0032] 4. In this automatic homogenizing device for food microbial testing, when the nozzle and agitator are detached, the collection plate can collect the detached nozzle and agitator, thereby preventing the nozzle and agitator from scattering everywhere and preventing contamination from substances on the nozzle and agitator. When the collection plate is resetting, the first connecting plate can scrape the nozzle and agitator on the collection plate into the waste bin. Attached Figure Description

[0033] Figure 1 This is a front view structural diagram of the present invention.

[0034] Figure 2 This is a side view of the structure of the present invention.

[0035] Figure 3 This is a schematic diagram of the liquid injection mechanism of the present invention.

[0036] Figure 4 This is a schematic diagram of the stirring mechanism of the present invention.

[0037] Figure 5 This is a schematic diagram of the connection structure between the first ejected component and the nozzle of the present invention.

[0038] Figure 6 This is a schematic diagram of the connection structure between the guide and the conduit of the present invention.

[0039] Figure 7 This is a schematic diagram of the nozzle structure of the present invention.

[0040] In the diagram: 1. Mounting base; 2. Liquid injection mechanism; 21. First lifting drive component; 22. First rotary drive component; 23. Conduit; 24. Nozzle; 241. First ejected component; 25. Liquid delivery assembly; 251. Liquid delivery pipe; 252. Pump body; 26. First ejection drive component; 27. First connecting rod; 28. First ejection ring; 29. ​​Rotary joint; 3. Stirring mechanism; 31. Second lifting drive component; 32. Second rotary drive component; 33. Connecting pipe; 34. Stirring component; 341. Second ejected component; 35. Second ejection drive component; 36. Second connecting rod; 37. Second ejection ring; 4. Guide component; 5. Waste collection assembly; 51. First connecting plate; 511. Slide groove; 52. Horizontal drive component; 53. Collection plate; 54. Waste bin; 55. Second connecting plate; 6. Sample container; 7. Conveying assembly. Detailed Implementation

[0041] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please refer to Figures 1 to 7 An automatic homogenizing device for food microbial detection in this solution includes a liquid injection mechanism 2 and a stirring mechanism 3 installed on a mounting base 1. The liquid injection mechanism 2 includes a first lifting drive 21 installed on the mounting base 1. The execution end of the first lifting drive 21 is connected to a first rotating drive 22. The execution end of the first rotating drive 22 is connected to a conduit 23. A nozzle 24 is sleeved on the end of the conduit 23 away from the first rotating drive 22. A liquid delivery assembly 25 is connected to the conduit 23 through a rotary joint 29.

[0043] The stirring mechanism 3 includes a second lifting drive 31 mounted on the mounting base 1. The execution end of the second lifting drive 31 is connected to a second rotating drive 32. The execution end of the second rotating drive 32 is provided with a connecting pipe 33. The end of the connecting pipe 33 away from the second rotating drive 32 is sleeved with a stirring element 34.

[0044] In the above technical solution, the first lifting drive 21 is used to drive the conduit 23 to lift and lower, the first rotating drive 22 is used to drive the conduit 23 to rotate, the liquid delivery assembly 25 is used to deliver the diluent into the conduit 23, the rotary joint 29 is used to ensure that the conduit 23 can remain connected to the liquid delivery assembly while rotating, and the nozzle 24 is used to inject the diluent into the sample container 6 during the rotation process. At the same time, the diluent sprayed from the nozzle 24 can flush the inner wall of the sample container 6, so that the sample adhering to the inner wall of the sample container 6 can be dissolved in the diluent.

[0045] The second lifting drive 31 is used to drive the connecting tube 33 and the stirring element 34 to move up and down, and the second rotation drive 32 is used to drive the connecting tube 33 and the stirring element 34 to rotate. The rotation of the stirring element 34 can mix and homogenize the diluent and the sample.

[0046] The first lifting drive component 21 and the second lifting drive component 31 can be telescopic cylinders such as hydraulic cylinders or pneumatic cylinders. The first rotary drive component 22 and the second rotary drive component 32 can be devices such as motors. The liquid delivery assembly 25 includes a liquid delivery pipe 251 connected to the rotary joint 29, a pump body 252 installed on the liquid delivery pipe 251, a liquid storage tank installed at the end of the liquid delivery pipe 251 away from the rotary joint 29, and a flow meter installed on the liquid delivery pipe 251. The liquid storage tank contains diluent. The pump body 252 can be a peristaltic pump or a gear pump. The flow meter is used to record the flow rate of the diluent, so that the sample container can automatically stop injecting after injecting the specified diluent.

[0047] Please refer to Figure 1 and Figure 3 Preferably, the first lifting drive 21 is further provided with a first top-release drive 26 at its execution end. The execution end of the first top-release drive 26 is connected to a first top-release ring 28 through a first connecting rod 27. The first top-release ring 28 is sleeved on the outer periphery of the guide tube 23.

[0048] In the above technical solution, the first detachment drive component 26 is used to drive the first connecting rod 27 to drive the first detachment ring 28 to slide on the outer periphery of the conduit 23. When it is necessary to detach the nozzle 24 sleeved on the conduit 23, the first detachment ring 28 moves downward by pressing against the top of the conduit 23 to make the nozzle 24 fall off the conduit 23, without the need for the staff to manually remove the nozzle 24. The first detachment drive component 26 can be a hydraulic cylinder or a pneumatic cylinder or other telescopic cylinder.

[0049] Please refer to Figure 6 Preferably, the outer periphery of the nozzle 24 is provided with a first ejector 241.

[0050] In the above technical solution, the first ejector 241 is used to cooperate with the first ejector ring 28, so that the first ejector ring 28 can push the first ejector 241 and the nozzle 24 together off the guide tube 23.

[0051] It should be noted that when the first ejector 241 is not set, a nozzle 24 with a larger thickness is required so that the first ejector ring 28 can push the nozzle 24 down. However, after the first ejector 241 is set, the nozzle 24 only needs to be set with a normal thickness.

[0052] Please refer to Figure 1 and Figure 3 Preferably, the second lifting drive 31 is further provided with a second top-release drive 35 on its execution end. The execution end of the second top-release drive 35 is connected to a second top-release ring 37 through a second connecting rod 36. The second top-release ring 37 is sleeved on the outer periphery of the connecting pipe 33.

[0053] In the above technical solution, the second jacking drive 35 is used to drive the second jacking ring 37 to jack the agitator 34 on the connecting pipe 33, thereby facilitating the replacement of the agitator 34 by the staff. The agitator 34 can be a stirring rod or other stirring equipment, and the second jacking drive 35 can be a hydraulic cylinder or a pneumatic cylinder or other telescopic cylinder.

[0054] Preferably, the agitator 34 is provided with a second ejector 341 on its outer periphery.

[0055] In the above technical solution, the second ejector 341 is used to cooperate with the second ejector ring 37 to facilitate the second ejector ring 37 to eject the agitator 34. When the second ejector 341 is not provided, the agitator 34 with a thicker thickness is required to facilitate the second ejector ring 37 to eject the nozzle 24. After the second ejector 341 is provided, the agitator 34 only needs to be set with a normal thickness.

[0056] It should be noted that the first ejector 241 and the second ejector 341 can be flanges or connecting ears provided on the outer periphery of the top of the nozzle 24.

[0057] Please refer to Figure 7 Preferably, the end of the conduit 23 away from the first rotary drive member 22 is provided with a first guide member 4, the diameter of the first guide member 4 gradually increases in the direction close to the first rotary drive member 22, and the end of the connecting pipe 33 away from the second rotary drive member 32 is provided with a second guide member, the diameter of the second guide member gradually increases in the direction close to the second rotary drive member 32.

[0058] In the above technical solution, since the nozzle 24 and the stirring element 34 are sleeved on the conduit 23 and the connecting pipe 33, and they adopt an interference fit, it is difficult to directly install the nozzle 24 and the stirring element 34 on the conduit 23 or the connecting pipe 33. The first guide 4 and the second guide 4 can guide them when installing the nozzle 24 or the stirring element 34. The first guide 4 has a channel inside that communicates with the conduit 23, so that the diluent in the conduit 23 can flow into the nozzle. The second guide does not need to have a channel inside.

[0059] Please refer to Figure 1 , Figure 2 and Figure 5 Preferably, it also includes a waste collection assembly 5 installed on the mounting base 1. The waste collection assembly 5 includes two first connecting plates 51 installed on the mounting base 1. Each first connecting plate 51 is equipped with a horizontal drive member 52. The execution end of the horizontal drive member 52 is connected to a collection plate 53. A waste bin 54 is detachably connected to the end of the first connecting plate 51 away from the mounting base 1. A sliding groove 511 is provided on the first connecting plate 51 for the collection plate 53 to slide. The waste bin 54 is connected to the first connecting plate 51 through a second connecting plate 55. The waste bin 54 is connected to the first connecting plate by magnetic attraction or snap-fit.

[0060] In the above technical solution, the horizontal drive component 52 is used to control the collection plate 53 to move below the conduit 23 and the connecting pipe 33. When the nozzle 24 and the agitator 34 are detached, the collection plate 53 can collect the detached nozzle 24 and agitator 34, thereby preventing the nozzle 24 and agitator 34 from scattering everywhere. At the same time, it can also prevent the substances on the nozzle 24 and agitator 34 from causing pollution. When the collection plate 53 is resetting, the first connecting plate 51 can scrape the nozzle 24 and agitator 34 on the collection plate 53 into the waste bin 54.

[0061] The present invention also provides an automatic homogenization system for food microbial detection, comprising an automatic homogenization device for food microbial detection as described above, a controller, and a conveying assembly 7. The controller is electrically connected to the first lifting drive 21, the first rotating drive 22, the first detaching drive 26, the second lifting drive 31, the second rotating drive 32, the second detaching drive 35, the liquid delivery assembly 25, the conveying assembly 7, and the horizontal drive 52.

[0062] In the above technical solution, the controller enables the injection mechanism 2, stirring mechanism 3, waste collection mechanism 5 and conveying component 7 to work together, so that there is no need for manual transfer of sample containers. The staff only needs to add test samples, install nozzles and stirrers. The conveying component 7 can be a conveyor belt or other conveying equipment. The controller is electrically connected to the pump body 252 and flow meter of the liquid delivery component 25 respectively. During the injection process, the flow meter on the liquid delivery pipe 251 transmits flow data to the controller in real time. When the cumulative flow reaches the preset threshold, the controller automatically controls the pump body 252 to stop running, thus completing the precise injection.

[0063] This invention also provides an automated homogenization method for food microbial detection, using the aforementioned automated homogenization system for food microbial detection, comprising the following steps:

[0064] Sample preparation: Add the test sample to the sample container 6, place the sample container 6 on the conveying assembly 7, and the controller controls the sample container 6 to move below the nozzle 24;

[0065] Liquid injection: The controller controls the first lifting drive 21 to drive the conduit 23 and nozzle 24 to descend into the sample container 6, controls the first rotating drive 22 to drive the nozzle 24 to rotate, and controls the liquid delivery assembly 25 to deliver liquid to the nozzle 24.

[0066] Sample transfer: The controller controls the conveying component 7 to move the sample container 6 below the stirring component 34;

[0067] Stirring: The controller controls the second lifting drive 31 to drive the stirring component 34 to descend into the sample container 6, and controls the second rotation drive 32 to drive the stirring component 34 to rotate;

[0068] Reset: The controller controls the first lifting drive component 21 and the second lifting drive component 31 to drive the nozzle 24 and the stirring component 34 to reset;

[0069] Waste removal: The controller controls two horizontal drive units 52 to move two collection plates 53 to below the nozzle 24 and the agitator 34 respectively, controls the first removal drive unit 26 to drive the first removal ring 28 to remove the nozzle 24, and controls the second removal drive unit 35 to drive the second removal ring 37 to remove the agitator 34.

[0070] Waste collection: The controller controls two horizontal drive components 52 to drive two collection plates 53 to reset. During the reset process of the collection plates 53, the edge of the first connecting plate 51 moves relative to the collection plates 53, and the nozzle 24 and the agitator 34 are scraped off by the first connecting plate 51 into the waste bin 54.

[0071] In the above technical solution, by adopting the aforementioned automated device and executing a complete and standardized process of sample preparation, liquid injection and stirring, component resetting, and waste collection, the discrete and variable operations that traditionally relied on manual experience, such as opening the lid, pouring, shaking, and changing tools, are integrated into a coherent and controlled automated process. This reduces human intervention, eliminates fluctuations in homogenization caused by differences in operator skills, and ensures the consistency and repeatability of test results. Each step is executed automatically by the device, which is fast and can operate continuously. It is particularly suitable for occasions such as customs and quality inspection centers that require large-scale and rapid screening, effectively overcoming the efficiency bottleneck of manual operation. By introducing a waste collection step, the disposal of used nozzles 24 and stirring components 34 is incorporated into the standardized process, avoiding the risk of secondary contamination caused by the random placement of waste consumables in traditional manual operations, and further improving the aseptic assurance system.

[0072] By activating the first rotary drive 22 to drive the conduit 23 to rotate for liquid injection, a vortex is generated during injection, allowing for preliminary and thorough pre-mixing with the sample. This not only reduces the burden on the subsequent stirring mechanism 3 but also makes the homogenization process faster and more thorough, improving the homogenization uniformity.

[0073] By cooperating with the detachment drive and detachment ring, the used nozzle 24 and agitator 34 are mechanically and automatically detached and discarded, completely avoiding contact between the operator's hands and the contaminated consumables. This solves the most challenging problem in microbial testing: human contact leading to contamination and cross-contamination between samples. At the same time, this method avoids direct exposure of personnel during the disposal of waste consumables, significantly reducing the biosafety risks to operators, and is particularly in line with the customs' biosafety protection requirements for handling high-risk quarantine samples.

[0074] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A food microorganism detection automatic homogenizing device, comprising a liquid injection mechanism (2) and a stirring mechanism (3) installed on a mounting base (1), characterized in that, The liquid injection mechanism (2) comprises a first lifting driving element (21) installed on the mounting base (1), the execution end of the first lifting driving element (21) is connected with a first rotary driving element (22), the execution end of the first rotary driving element (22) is connected with a guide pipe (23), one end of the guide pipe (23) away from the first rotary driving element (22) is sleeved with a nozzle (24), and the guide pipe (23) is connected with a liquid feeding assembly (25) through a rotary joint (29). The stirring mechanism (3) comprises a second lifting driving element (31) installed on the mounting base (1), the execution end of the second lifting driving element (31) is connected with a second rotary driving element (32), the execution end of the second rotary driving element (32) is provided with a connecting pipe (33), and one end of the connecting pipe (33) away from the second rotary driving element (32) is sleeved with a stirring element (34).

2. The food microorganism detection automated homogenization device of claim 1, wherein, The execution end of the first lifting driving element (21) is further provided with a first ejection driving element (26), the execution end of the first ejection driving element (26) is connected with a first ejection ring (28) through a first connecting rod (27), and the first ejection ring (28) is sleeved on the outer periphery of the guide pipe (23).

3. The food microorganism detection automated homogenization device of claim 1, wherein, The outer periphery of the nozzle (24) is provided with a first ejection element (241).

4. The food microbe detection automated homogenization device of claim 1, wherein, The execution end of the second lifting driving element (31) is further provided with a second ejection driving element (35), the execution end of the second ejection driving element (35) is connected with a second ejection ring (37) through a second connecting rod (36), and the second ejection ring (37) is sleeved on the outer periphery of the connecting pipe (33).

5. The food microbe detection automated homogenization device of claim 1, wherein, The outer periphery of the stirring element (34) is provided with a second ejection element (341).

6. The food microbe detection automated homogenization device of claim 1, wherein, One end of the guide pipe (23) away from the first rotary driving element (22) is provided with a first guide element (4), the first guide element (4) is internally provided with a channel in communication with the guide pipe (23), and the diameter of the first guide element (4) gradually increases along the direction close to the first rotary driving element (22).

7. The food microorganism detection automated homogenization device of claim 1, wherein, One end of the connecting pipe (33) away from the second rotary driving element (32) is provided with a second guide element, and the diameter of the second guide element gradually increases along the direction close to the second rotary driving element (32).

8. The food microbe detection automated homogenization device of claim 1, wherein, Further comprising a waste collecting assembly (5) installed on the mounting base (1), the waste collecting assembly (5) comprises two first connecting plates (51) installed on the mounting base (1), a horizontal driving element (52) is installed on each first connecting plate (51), the execution end of the horizontal driving element (52) is connected with a collecting plate (53), one end of the first connecting plate (51) away from the mounting base (1) is detachably connected with a waste box (54), and a sliding groove (511) for sliding of the collecting plate (53) is formed in the first connecting plate (51).

9. A food microorganism detection automated homogenization system characterized by, The food microorganism detection automatic homogenizing device, the controller and the conveying assembly (7) according to any one of claims 1-8, the controller is electrically connected with the first lifting driving part (21), the first rotating driving part (22), the first ejection driving part (26), the second lifting driving part (31), the second rotating driving part (32), the second ejection driving part (35), the liquid feeding assembly (24), the conveying assembly (7) and the horizontal driving part (52) respectively.

10. A food microorganism detection automatic homogenization method using the food microorganism detection automatic homogenization system according to claim 9, characterized by, The method comprises the following steps: Sample preparation: add the detection sample into the sample container (6), place the sample container (6) on the conveying assembly (7), and control the controller to move the sample container (6) to below the nozzle (24); Liquid injection: control the first lifting driving part (21) to drive the catheter (23) and the nozzle (24) to descend into the sample container (6), control the first rotating driving part (22) to drive the nozzle (24) to rotate, and control the liquid feeding assembly (25) to feed liquid to the nozzle (24); Sample transfer: control the controller to drive the conveying assembly (7) to move the sample container (6) to below the stirring part (34); Stirring: control the second lifting driving part (31) to drive the stirring part (34) to descend into the sample container (6), and control the second rotating driving part (32) to drive the stirring part (34) to rotate; Reset: control the first lifting driving part (21) and the second lifting driving part (31) to drive the nozzle (24) and the stirring part (34) to reset; Waste ejection: control the two horizontal driving parts (52) to respectively drive the two collection plates (53) to move to below the nozzle (24) and the stirring part (34), control the first ejection driving part (26) to drive the first ejection ring (28) to eject the nozzle (24), and control the second ejection driving part (35) to drive the second ejection ring (37) to eject the stirring part (34); Waste collection: control the two horizontal driving parts (52) to drive the two collection plates (53) to reset, and the nozzle (24) and the stirring part (34) are scraped by the first connecting plate (51) into the waste tank (54) during the resetting of the collection plates (53).

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