Liquid strain inoculation box for microbiological experiment

Abstract

The invention relates to the technical field of microbial inoculation boxes, and discloses a liquid strain inoculation box for microbiological experiments, which comprises an inoculation box, a connecting base is fixedly connected in the inoculation box, a connecting seat is fixedly connected to the top of the connecting base, and a driving assembly is movably connected to the side surface of the connecting seat. A culture solution injection assembly and a supporting frame are fixedly connected to the other side face of the connecting base, an inoculation assembly is fixedly connected to the top of the connecting base, a conveying belt is arranged at the bottoms of the culture solution injection assembly and the inoculation assembly, a fixing assembly is movably connected to the conveying belt, and a connecting sliding plate is fixedly connected to the side face of the connecting base; the device is provided with the driving assembly and the culture solution injection assembly, culture solution extraction, precise injection and strain inoculation can be automatically completed, the manual operation time is greatly shortened, the device is further provided with the fixing assembly, the inclination angle of the test tube can be dynamically adjusted, and the experiment success rate and efficiency are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of microbial inoculation boxes, in particular to a liquid bacterial strain inoculation box for microbiology experiments. Background Art

[0002] Liquid bacterial strains are produced in liquid form using liquid culture media in bio-fermentation tanks through liquid fermentation technology. They are frequently cultivated and transferred in scientific fields such as microbiology, fermentation technology, pharmaceutical engineering, edible fungus cultivation, forest protection, antibiotics, pharmacy, and microbial genetics. Liquid bacterial strain inoculation boxes are sterile operation boxes, typically constructed of wood. These boxes require a tight, seamless closure to facilitate airtight fumigation and sterile operation.

[0003] Publication number CN219621161U discloses a liquid bacterial strain inoculation box for microbiological experiments, which relates to a device for microbiological experiments. This device aims to solve the technical problem that gloves used in existing liquid bacterial strain inoculation boxes are inconvenient to replace and easily fall off. The exterior of the sleeve in this device is fixedly composed of a truncated cone-shaped corrugated tube, a first cylindrical structure, and a second cylindrical structure. The diameter of the second cylindrical structure is smaller than that of the first cylindrical structure. The liquid bacterial strain inoculation box for microbiological experiments in this device has a simple structure and strong practicality. When replacing disposable gloves, insert them from the thinner end of the truncated cone-shaped corrugated tube, which is very convenient. Velcro secures the gloves to the thinner second cylindrical structure, acting as a limiter and preventing them from falling off. The corrugated tube is a soft structure, so the operator's forearm is not restricted when moving, allowing for greater freedom of movement.

[0004] Currently, traditional inoculation relies on manual work to add culture medium, position test tubes, and inoculate bacterial strains. This process requires manual operation, tube by tube, and is time-consuming (e.g., 5-10 minutes are required to inoculate 10 test tubes at a time). Furthermore, the test tubes usually need to be tilted during inoculation, and the inoculation loop must be shaken against the wall of the test tube to prevent contamination caused by contact between the other parts of the loop and the test tube. Manual operation requires a lot of physical effort, and fatigue can easily affect inoculation accuracy. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a liquid bacterial inoculation box for microbiological experiments to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical solution: a liquid strain inoculation box for microbiology experiments, comprising an inoculation box, wherein the interior of the inoculation box is fixedly connected to a connecting base, the top of the connecting base is fixedly connected to a connecting seat, the side of the connecting seat is movably connected to a driving component, and the other side of the connecting seat is fixedly connected to a culture fluid injection component and a support frame, the support frame is arranged at the top position of the culture fluid injection component, the top of the connecting base is fixedly connected to the inoculation component, the bottom of the culture fluid injection component and the inoculation component are provided with a conveyor belt, the conveyor belt is arranged at the top of the connecting base and is movably connected to the connecting base, the conveyor belt is movably connected to a fixed component, and the side of the connecting base is fixedly connected to a connecting slide, when in use, the culture bottle is placed on the support frame, and the movement is driven by the driving component to make the internal culture fluid enter the culture fluid injection component from the culture bottle, and is injected from the culture fluid injection component to the fixed component, and then the microorganisms are inoculated into the fixed component through the inoculation component, thereby realizing rapid inoculation of microorganisms.

[0007] Furthermore, a monitor is fixedly connected to the inoculation box, a disinfection lamp is provided inside the inoculation box, the monitor is used to monitor and adjust the temperature and humidity inside the inoculation box, the side of the inoculation box is movably connected to a box cover for taking and placing containers, and rubber gloves are fixedly connected to the inoculation box.

[0008] Furthermore, the culture fluid injection assembly includes a support plate, which is fixedly connected to the side of the connecting seat, and a slide is movably connected to the support plate, and a motor is fixedly connected to the slide plate. A No. 3 gear is fixedly connected to the output shaft at the middle position of the bottom of the motor, and the side of the No. 3 gear is meshed with the No. 1 gear, and the side of the No. 1 gear is fixedly connected to the No. 2 gear. A fixing ring is provided between the No. 1 gear and the No. 2 gear, and the No. 1 gear and the No. 2 gear are both rotatably connected to the fixing ring. The bottom of the No. 2 gear is meshed with a rack, and the rack is fixedly connected to the support plate. The bottom of the fixing ring is fixedly connected to the syringe, and the slide plate is fixedly connected to the fixing ring.

[0009] The motor drives gear number 3 to rotate, which in turn drives gear number 1, which in turn drives gear number 2 to rotate on the rack. This allows the syringes to be aligned with each test tube on the fixed assembly during use, speeding up the injection of culture fluid and improving work efficiency.

[0010] Furthermore, the driving assembly includes a turntable, the top of the turntable is rotatably connected to a No. 1 connecting plate, the top of the No. 1 connecting plate is rotatably connected to a connecting frame, the top of the connecting seat is fixedly connected to a storage box body, the other end of the connecting frame is fixedly connected to a piston rod, the piston rod is arranged inside the storage box body and is movably connected to the storage box body, the side and bottom of the storage box body are fixedly connected to connecting pipes, the connection between the storage box body and the connecting pipe is fixedly connected to an adjustment assembly, the connecting pipe on the side is used to connect to a culture bottle, and the connecting pipe at the bottom is fixedly connected to a syringe.

[0011] When in use, the turntable is driven to rotate by a motor, the turntable drives the No. 1 connecting plate to move, the No. 1 connecting plate drives the connecting frame to move, and the connecting frame drives the piston rod fixed at the bottom to reciprocate on the storage box. The connecting frame, the storage box and the piston rod cooperate to extract the culture fluid inside the culture bottle installed on the support frame, and then send the culture fluid to the culture fluid injection assembly through the connecting pipe at the bottom, and inject the culture fluid into a new test tube through the culture fluid injection assembly, thereby improving work efficiency.

[0012] Furthermore, the fixing assembly includes a device shell, and an upper fixing rod and a lower fixing rod are movably connected inside the device shell. The upper fixing rod and the lower fixing rod can move horizontally inside the device shell, and the side of the upper fixing rod is rotatably connected to the third connecting plate, and the side of the lower fixing rod is rotatably connected to the second connecting plate. The top side of the device shell is fixedly connected to a spring damper, and the top of the spring damper is fixedly connected to a connecting platform. The second connecting plate, the third connecting plate and the connecting platform are rotatably connected together.

[0013] Furthermore, a limiting groove is provided at the bottom of the device housing, and a clamping plate is fixedly connected to the conveyor belt. During installation, the limiting groove is clamped on the clamping plate for fixation, and test tubes are movably connected to the upper and lower fixed rods.

[0014] When in use, the connecting platform is pressed downward by the downward movement of the fixed plate, and the connecting platform drives the spring damper to move downward, and the No. 2 connecting plate and the No. 3 connecting plate that are connected by rotating on the side of the connecting platform are also driven to move obliquely downward, so that the No. 3 connecting plate drives the upper fixed rod to move toward the connecting platform, and the No. 2 connecting plate drives the lower fixed rod to move in the opposite direction. The test tube is placed at an angle through the movement of the upper and lower fixed rods, which can increase the contact area between the inoculation loop or inoculation needle and the surface of the culture medium during inoculation, making the distribution of microorganisms more uniform, thereby improving the inoculation efficiency.

[0015] Furthermore, the adjustment component includes a shell, a through slot is opened inside the shell, a fixed block is fixedly connected to the inside of the shell, a spring is fixedly connected to the side of the fixed block, a stopper is fixedly connected to the side of the spring, and the stopper is movably connected to the shell.

[0016] Furthermore, the inoculation assembly includes a No. 4 connecting plate, a hydraulic device is provided at the bottom of the No. 4 connecting plate, and a fixed plate and an inoculation head are fixedly connected to the side of the No. 4 connecting plate.

[0017] Furthermore, the culture fluid injection assembly and the inoculation assembly are fixedly connected with infrared sensors for detecting the position of the fixed assembly on the conveyor belt.

[0018] Beneficial effects: 0. This liquid bacterial inoculation box for microbiology experiments is equipped with a drive component and a culture fluid injection component, which can automatically complete culture fluid extraction, precise injection and bacterial inoculation. It cooperates with a conveyor belt to realize assembly line operation, greatly reducing manual operation time; it is also equipped with a fixed component that can dynamically adjust the inclination angle of the test tube, increase the contact area between the microorganism and the culture medium, ensure uniform inoculation, and effectively improve the success rate and efficiency of the experiment.

[0019] 1. This liquid bacterial inoculation box for microbiology experiments adopts a closed box design, with a built-in monitor to control temperature and humidity in real time. It is equipped with a disinfection lamp and rubber gloves to create a sterile environment and reduce the risk of external contamination. It also adopts a modular structure for easy maintenance. Key components can be disassembled and replaced independently to reduce the impact of equipment failure, providing stable and safe operating conditions for microbial inoculation experiments and ensuring the reliability of experimental results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall external structure of a liquid bacterial inoculation box for microbiology experiments proposed by the present invention; Figure 2 This is a schematic diagram of the internal structure of a liquid bacterial inoculation box for microbiology experiments proposed by the present invention; Figure 3 This is a partial cross-sectional view of a drive assembly of a liquid bacterial inoculation box for microbiology experiments proposed by the present invention; Figure 4 This is a schematic diagram of the fixed component structure of a liquid bacterial inoculation box for microbiology experiments proposed by the present invention; Figure 5 This is a schematic diagram of the internal structure of a liquid bacterial inoculation box for microbiology experiments proposed by the present invention; Figure 6 This is a cross-sectional view of an adjustment component of a liquid bacterial inoculation box for microbiology experiments proposed by the present invention; Figure 7 for Figure 5 Enlarged view of the structure at point A above.

[0021] Among them: 1. Inoculation box; 2. Monitor; 3. Rubber gloves; 4. Box cover; 5. Connecting base; 6. Drive assembly; 601. Turntable; 602. Connecting plate No. 1; 603. Connecting frame; 604. Storage box; 605. Piston rod; 606. Adjustment assembly; 6061. Housing; 6062. Stopper; 6063. Through slot; 6064. Spring; 6065. Fixing block; 7. Culture medium injection assembly; 701. Support plate; 702. Syringe; 703. Slide plate; 704. Gear No. 1; 705. Fixing ring ;706, rack;707, gear No. 2;708, gear No. 3;8, fixing assembly;801, device housing;802, upper fixing rod;803, test tube;804, connecting plate No. 2;805, limiting groove;806, lower fixing rod;807, connecting plate No. 3;808, spring damper;809, connecting table;9, inoculation assembly;901, connecting plate No. 4;902, fixing plate;903, inoculation head;10, conveyor belt;11, connecting seat;12, connecting slide;13, connecting pipe;14, support frame. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 3 、 Figure 5-Figure 7 , a liquid strain inoculation box for microbiology experiments, including an inoculation box 1, the interior of the inoculation box 1 is fixedly connected to a connecting base 5, the top of the connecting base 5 is fixedly connected to a connecting seat 11, the side of the connecting seat 11 is movably connected to a driving component 6, and the other side of the connecting seat 11 is fixedly connected to a culture fluid injection component 7 and a support frame 14, and the support frame 14 is arranged at the top position of the culture fluid injection component 7, the top of the connecting base 5 is fixedly connected to an inoculation component 9, and the bottom of the culture fluid injection component 7 and the inoculation component 9 are provided with a conveyor belt 10, which is arranged at the top of the connecting base 5 and movably connected to the connecting base 5, and a fixed component 8 is movably connected to the conveyor belt 10, and a connecting slide 12 is fixedly connected to the side of the connecting base 5. When in use, the culture bottle is placed on the support frame 14, and the movement is driven by the driving component 6 to make the internal culture fluid enter the culture fluid injection component 7 from the culture bottle, and is injected from the culture fluid injection component 7 to the fixed component 8, and then the microorganisms are inoculated into the fixed component 8 through the inoculation component 9, thereby realizing rapid inoculation of microorganisms.

[0024] The culture fluid injection assembly 7 includes a support plate 701, which is fixedly connected to the side of the connecting seat 11. A slide plate 703 is movably connected to the support plate 701, and a motor is fixedly connected to the slide plate 703. A third gear 708 is fixedly connected to the output shaft at the middle position of the bottom of the motor. The side of the third gear 708 is meshed with the first gear 704, and the side of the first gear 704 is fixedly connected with the second gear 707. A fixing ring 705 is provided between the first gear 704 and the second gear 707. The first gear 704 and the second gear 707 are both rotatably connected to the fixing ring 705. The bottom of the second gear 707 is meshed with a rack 706, and the rack 706 is fixedly connected to the support plate 701. The bottom of the fixing ring 705 is fixedly connected to the syringe 702, and the slide plate 703 is fixedly connected to the fixing ring 705.

[0025] The motor drives the No. 3 gear 708 to rotate, the No. 3 gear 708 drives the No. 1 gear 704 meshed with it to rotate, and the No. 1 gear 704 drives the No. 2 gear 707 to rotate on the rack 706, so that when the device is in use, the syringe 702 can be aligned with each test tube 803 on the fixed component 8 respectively, speeding up the injection of culture fluid and thus improving work efficiency.

[0026] The driving assembly 6 includes a turntable 601, the top of the turntable 601 is rotatably connected to a connecting plate No. 1 602, the top of the connecting plate No. 1 602 is rotatably connected to a connecting frame 603, the top of the connecting seat 11 is fixedly connected to a storage box 604, the other end of the connecting frame 603 is fixedly connected to a piston rod 605, the piston rod 605 is arranged inside the storage box 604 and is movably connected to the storage box 604, the side and bottom of the storage box 604 are fixedly connected to a connecting pipe 13, the connection between the storage box 604 and the connecting pipe 13 is fixedly connected to an adjustment assembly 606, the side connecting pipe 13 is used to connect to a culture bottle, and the bottom connecting pipe 13 is fixedly connected to the syringe 702.

[0027] When in use, the turntable 601 is driven to rotate by the motor, the turntable 601 drives the No. 1 connecting plate 602 to move, the No. 1 connecting plate 602 drives the connecting frame 603 to move, and the connecting frame 603 drives the piston rod 605 fixed at the bottom to reciprocate on the storage box 604. The connecting frame 603, the storage box 604 and the piston rod 605 cooperate to extract the culture fluid inside the culture bottle installed on the support frame 14, and then send the culture fluid to the culture fluid injection component 7 through the connecting pipe 13 at the bottom, and inject the culture fluid into the new test tube through the culture fluid injection component 7, thereby improving work efficiency.

[0028] The adjustment component 606 includes a shell 6061, a through groove 6063 is opened inside the shell 6061, a fixed block 6065 is fixedly connected to the inside of the shell 6061, a spring 6064 is fixedly connected to the side of the fixed block 6065, and a stop block 6062 is fixedly connected to the side of the spring 6064. The stop block 6062 is movably connected to the shell 6061. The adjustment component 606 acts as a one-way control valve to control the flow direction of the liquid inside the storage box 604.

[0029] What needs to be specifically explained in this embodiment is that the motor drives the turntable 601 to rotate, driving the piston rod 605 to reciprocate in the storage box 604, which can automatically extract the culture medium in the culture bottle and deliver it to the syringe 702 through the connecting pipe 13. At the same time, the syringe 702 is driven by a gear rack (gear No. 3 708, gear No. 1 704, gear No. 2 707 and rack 706 cooperate) to achieve lateral movement, accurately aligning with the multiple test tubes 803 of the fixed component 8, eliminating the need for manual addition of culture medium tube by tube, greatly reducing operation time.

[0030] See also Figure 4 The fixing assembly 8 includes a device housing 801, and an upper fixing rod 802 and a lower fixing rod 806 are movably connected inside the device housing 801. The upper fixing rod 802 and the lower fixing rod 806 can move horizontally inside the device housing 801. The side of the upper fixing rod 802 is rotatably connected to the third connecting plate 807, and the side of the lower fixing rod 806 is rotatably connected to the second connecting plate 804. The top side of the device housing 801 is fixedly connected to a spring damper 808, and the top of the spring damper 808 is fixedly connected to a connecting platform 809. The second connecting plate 804, the third connecting plate 807 and the connecting platform 809 are rotatably connected together.

[0031] A limiting groove 805 is provided at the bottom of the device housing 801, and a clamping plate is fixedly connected to the conveyor belt 10. During installation, the limiting groove 805 is clamped on the clamping plate for fixation, and a test tube 803 is movably connected to the upper fixing rod 802 and the lower fixing rod 806.

[0032] When in use, the connecting platform 809 is pressed downward by the downward movement of the fixed plate 902, and the connecting platform 809 drives the spring damper 808 to move downward. The second connecting plate 804 and the third connecting plate 807 connected to the side of the connecting platform 809 are also driven to move diagonally downward, so that the third connecting plate 807 drives the upper fixed rod 802 to move toward the connecting platform 809, and the second connecting plate 804 drives the lower fixed rod 806 to move in the opposite direction. The movement of the upper fixed rod 802 and the lower fixed rod 806 makes the test tube 803 tilted, which can increase the contact area between the inoculation loop or inoculation needle and the surface of the culture medium during inoculation, making the distribution of microorganisms more uniform, thereby improving the inoculation efficiency.

[0033] Specifically, in this embodiment, the conveyor belt 10 engages the retaining grooves 805 of the fixed assembly 8 via a clamping plate to secure the test tubes during transport, preventing them from shaking or shifting. Combined with infrared sensor detection, this ensures the positional accuracy of culture fluid injection and inoculation operations, reducing experimental errors caused by positional deviations. The conveyor belt 10 can simultaneously carry multiple fixed assemblies 8, enabling a streamlined "culture fluid injection-inoculation-cultivation" process. Different experimental batches can be run simultaneously, improving equipment utilization and making it suitable for large-scale microbial inoculation.

[0034] Among them, the fixing component 8 tilts the test tube during inoculation through the linkage of the spring damper 808, the second connecting plate 804 and the third connecting plate 807, thereby increasing the contact area between the microorganisms and the surface of the culture medium, avoiding the local accumulation or uneven distribution problems caused by traditional upright inoculation, and improving the uniformity of inoculation.

[0035] See also Figure 5 The inoculation assembly 9 includes a No. 4 connecting plate 901 , a hydraulic device is provided at the bottom of the No. 4 connecting plate 901 , and a fixed plate 902 and an inoculation head 903 are fixedly connected to the side of the No. 4 connecting plate 901 .

[0036] During use, different amounts of microorganisms can be inoculated through different inoculation heads 903, which is more convenient for conducting control experiments in the laboratory. At the same time, the culture fluid injection component 7, inoculation component 9, drive component 6, etc. are all modularly designed and can be disassembled for maintenance or replacement separately. The syringe 702, piston rod 605 and other vulnerable parts can be quickly replaced, reducing equipment downtime and maintenance costs.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A liquid bacterial inoculation box for microbiological experiments, comprising an inoculation box (1), characterized in that: The inoculation box (1) is fixedly connected to a connecting base (5) on the inside, the connecting base (5) is fixedly connected to a connecting seat (11) on the top, the connecting seat (11) is movably connected to a driving assembly (6) on the side, the connecting seat (11) is fixedly connected to a culture fluid injection assembly (7) and a support frame (14) on the other side, the support frame (14) is arranged at the top position of the culture fluid injection assembly (7), the top of the connecting base (5) is fixedly connected to an inoculation assembly (9), the bottom of the culture fluid injection assembly (7) and the inoculation assembly (9) are provided with a conveyor belt (10), the The conveyor belt (10) is arranged on the top of the connecting base (5) and is movably connected to the connecting base (5). The conveyor belt (10) is movably connected to a fixed component (8). The side of the connecting base (5) is fixedly connected to a connecting slide (12). When in use, the culture bottle is placed on the support frame (14). The driving component (6) drives the movement so that the internal culture fluid enters the culture fluid injection component (7) from the culture bottle and is injected from the culture fluid injection component (7) to the fixed component (8). Then, the microorganisms are inoculated into the fixed component (8) through the inoculation component (9), thereby realizing rapid inoculation of microorganisms.

2. A liquid bacterial inoculation box for microbiological experiments according to claim 1, characterized in that: The inoculation box (1) is fixedly connected to a monitor (2), a disinfection lamp is provided inside the inoculation box (1), the monitor (2) is used to monitor and adjust the temperature and humidity inside the inoculation box (1), the side of the inoculation box (1) is movably connected to a box cover (4) for taking and placing containers, and the inoculation box (1) is fixedly connected to a rubber glove (3).

3. The liquid bacterial inoculation box for microbiological experiments according to claim 1, characterized in that: The culture fluid injection assembly (7) includes a support plate (701), the support plate (701) is fixedly connected to the side of the connecting seat (11), a slide plate (703) is movably connected to the support plate (701), a motor is fixedly connected to the slide plate (703), a third gear (708) is fixedly connected to the output shaft at the middle position of the bottom of the motor, the side of the third gear (708) is meshed with the first gear (704), and the side of the first gear (704) is fixedly connected to the second gear (70 7), a fixed ring (705) is provided between the No. 1 gear (704) and the No. 2 gear (707), the No. 1 gear (704) and the No. 2 gear (707) are both rotatably connected to the fixed ring (705), the bottom of the No. 2 gear (707) is meshedly connected with a rack (706), the rack (706) and the support plate (701) are fixedly connected, the bottom of the fixed ring (705) is fixedly connected with a syringe (702), and the slide plate (703) and the fixed ring (705) are fixedly connected.

4. The liquid bacterial inoculation box for microbiological experiments according to claim 3, characterized in that: The driving assembly (6) includes a turntable (601), the top of the turntable (601) is rotatably connected to a No. 1 connecting plate (602), the top of the No. 1 connecting plate (602) is rotatably connected to a connecting frame (603), the top of the connecting seat (11) is fixedly connected to a storage box (604), the other end of the connecting frame (603) is fixedly connected to a piston rod (605), the piston rod (605) is arranged inside the storage box (604) and is movably connected to the storage box (604), the side and bottom of the storage box (604) are fixedly connected to a connecting pipe (13), the connection between the storage box (604) and the connecting pipe (13) is fixedly connected to an adjusting assembly (606), the connecting pipe (13) on the side is used to connect to a culture bottle, and the connecting pipe (13) on the bottom is fixedly connected to a syringe (702).

5. The liquid bacterial inoculation box for microbiological experiments according to claim 1, characterized in that: The fixing assembly (8) comprises a device housing (801), wherein an upper fixing rod (802) and a lower fixing rod (806) are movably connected inside the device housing (801), and the upper fixing rod (802) and the lower fixing rod (806) are capable of horizontally moving inside the device housing (801); a side of the upper fixing rod (802) is rotatably connected to a third connecting plate (807); a side of the lower fixing rod (806) is rotatably connected to a second connecting plate (804); a side top of the device housing (801) is fixedly connected to a spring damper (808); a top of the spring damper (808) is fixedly connected to a connecting platform (809); and the second connecting plate (804), the third connecting plate (807) and the connecting platform (809) are rotatably connected together.

6. The liquid bacterial inoculation box for microbiological experiments according to claim 5, characterized in that: A limiting groove (805) is provided at the bottom of the device housing (801), and a clamping plate is fixedly connected to the conveyor belt (10). During installation, the limiting groove (805) is clamped on the clamping plate for fixation, and a test tube (803) is movably connected to the upper fixing rod (802) and the lower fixing rod (806).

7. The liquid bacterial inoculation box for microbiological experiments according to claim 4, characterized in that: The adjustment component (606) includes a shell (6061), a through slot (6063) is provided inside the shell (6061), a fixed block (6065) is fixedly connected to the inside of the shell (6061), a spring (6064) is fixedly connected to the side of the fixed block (6065), a stopper (6062) is fixedly connected to the side of the spring (6064), and the stopper (6062) is movably connected to the shell (6061).

8. The liquid bacterial inoculation box for microbiological experiments according to claim 1, characterized in that: The inoculation assembly (9) comprises a No. 4 connecting plate (901), a hydraulic device is provided at the bottom of the No. 4 connecting plate (901), and a fixing plate (902) and an inoculation head (903) are fixedly connected to the side of the No. 4 connecting plate (901).

9. The liquid bacterial inoculation box for microbiological experiments according to claim 1, characterized in that: The culture fluid injection assembly (7) and the inoculation assembly (9) are fixedly connected with infrared sensors for detecting the position of the fixed assembly (8) on the conveyor belt (10).

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