A bacterial culture device
By introducing multi-layer sliding rail culture racks and culture dish placement slots into the bacterial incubator, combined with a culture dish propulsion mechanism, the problems of culture dish stacking slippage and cross-contamination are solved, achieving efficient and safe bacterial culture operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN JINYU MEDICAL SCI INSPECTION CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-31
AI Technical Summary
Existing bacterial incubators are insufficient to meet the needs of modern high-throughput experiments in terms of space utilization, ease of operation, and safety. In particular, they pose problems such as slippage of stacked culture dishes, cross-contamination, and safety hazards.
The design incorporates a multi-layered sliding rail culture rack and a culture dish placement slot, combined with a culture dish propulsion mechanism, to achieve zoned isolation and automatic positioning of the culture dishes. The detachable pull-out design improves space utilization and operational efficiency.
This effectively avoids petri dish slippage and cross-contamination, reduces safety risks, and improves the accuracy of test results and the convenience of experimental operations.
Smart Images
Figure CN224578252U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biological culture equipment technology, and in particular to a bacterial culture device, which is applicable to fields such as microbiology laboratories and medical testing. Background Technology
[0002] With the rapid development of biotechnology and microbial research, bacterial incubators have become one of the core pieces of equipment in microbiology laboratories, medical testing institutions, and the biopharmaceutical industry. Their main function is to provide optimal growth conditions for bacteria, fungi, or cells by precisely controlling key parameters such as temperature, humidity, and gaseous environment (e.g., CO2 and O2 concentrations), thereby ensuring the accuracy and reproducibility of experimental data. Currently, common incubator types on the market include constant temperature incubators, CO2 incubators, anaerobic incubators, and constant temperature and humidity incubators, which are widely used in pathogen isolation, antibiotic sensitivity testing, genetically engineered bacteria culture, and cell biology research.
[0003] However, despite continuous advancements in incubator technology, particularly in terms of space utilization, ease of operation, and safety, it still falls short of meeting the demands of modern high-throughput experiments. Specific problems include:
[0004] 1. Limited space and cumbersome operation
[0005] Traditional incubators typically employ a multi-layer shelf structure, requiring petri dishes to be placed and removed layer by layer, resulting in a cumbersome operation process and low efficiency, especially when processing large batches of samples.
[0006] The petri dishes are stacked in the same space, lacking independent partitioning design, which makes it easy for the plates to interfere with each other and increases the risk of cross-contamination.
[0007] Without a fixed support structure around the petri dish, it is prone to slipping during movement or pulling, which may even cause the culture medium to spill, affecting not only the experimental results but also potentially contaminating the environment inside the chamber.
[0008] 2. Significant safety hazards
[0009] Multi-layer shelves lack stability when pulled out, and culture dishes may fall due to vibration or tilting, generating bacterial aerosols that pose a threat to the health of laboratory personnel (such as high-risk pathogens like Mycobacterium tuberculosis and drug-resistant bacteria).
[0010] Some incubators lack drop protection design. If the petri dish breaks, it may cause glass shards to fly or cause biological contamination, increasing laboratory safety risks.
[0011] While some improved incubators exist in the prior art, they still have certain limitations. For example, CN221421100U discloses a bacterial incubator including a body and an adjustment component. It features a limiting component to conveniently limit the placement of the culture dishes, a positioning component to conveniently limit the placement of the trays, and an adjustment component to facilitate adjustment of the spacing between the trays, thus achieving the purpose of accommodating culture dishes of various sizes. Another example is CN220246080U, which discloses a bacterial incubator where, during use, a first limiting component quickly fixes the placement plate without the need for slowly tightening bolts. A second limiting component quickly limits the first limiting component, making it easier to pull the placement plate out of the rod, avoiding the frictional force of the first limiting component affecting the speed of pulling out the placement plate. The bacterial culture dishes and slots can be movably fitted onto the T-shaped block, achieving quick fixation of the placement plate and bacterial culture dishes, effectively preventing the bacterial culture dishes from vibrating excessively.
[0012] While these improvements have enhanced the stability of individual culture dishes to some extent, in practical use, to improve space utilization and detection efficiency, culture dishes still need to be stacked. Therefore, the risk of each layer of culture dishes being stacked in a separate space, and the risk of the uppermost layer slipping off, remains. In other words, the core problems of insufficient space partitioning, easy scattering of culture dishes, and high risk of cross-contamination have not been completely solved. Therefore, there is an urgent need for a bacterial culture device that can both improve space utilization and prevent culture dishes from scattering. Utility Model Content
[0013] This invention aims to provide a bacterial culture device that solves the problems of partitioned culture and scattered culture dishes through a design with multiple culture dish placement slots. The culture dish propulsion mechanism enables stable storage and convenient handling of the culture dishes, effectively solving the problems of contamination and inconvenience in operation of traditional incubators. It is suitable for efficient and safe culture in microbial experiments.
[0014] To achieve the above objectives, this utility model provides the following technical solution:
[0015] A bacterial culture device, comprising:
[0016] The housing has multiple sliding rails on both sides inside.
[0017] The culture rack, through its cooperation with the slide rail, allows for detachable and pull-out operation;
[0018] The petri dish placement slot is located inside the culture rack and is used to stack multiple petri dishes;
[0019] A petri dish pushing mechanism is located in the petri dish placement slot and is used to automatically push and position the petri dish upwards. The petri dish pushing mechanism includes a spring, a petri dish support plate, a spring box, and a limiting baffle. One end of the spring is fixed to the top side wall of the petri dish placement slot, and the other end of the spring is placed in the spring box at the bottom of the petri dish support plate. The limiting baffle is fixed to the top of the petri dish placement slot.
[0020] Furthermore, in the aforementioned bacterial culture device, each layer of the culture dish placement slots is configured with multiple slots.
[0021] Furthermore, in the aforementioned bacterial culture device, the depth of the culture dish placement tank is 10-20 cm and the diameter is 10-16 cm.
[0022] Furthermore, in the aforementioned bacterial culture device, a notch is formed on one side of the culture dish placement groove.
[0023] Furthermore, in the aforementioned bacterial culture device, the slide rail is a three-section slide rail, wherein the inner rail of the three-section slide rail is fixed to both sides of the culture rack, and the middle rail and outer rail of the three-section slide rail are fixed to the inner walls of both sides of the box.
[0024] Furthermore, in the aforementioned bacterial culture device, the spring is made of 301 stainless steel.
[0025] Furthermore, in the aforementioned bacterial culture device, the bottom of the culture rack has through holes.
[0026] Furthermore, in the aforementioned bacterial culture device, sliding blocks are fixedly connected to both sides of the culture dish tray via connecting rods, and the sliding blocks slide up and down within the sliding groove inside the culture dish placement slot.
[0027] Furthermore, in the above-mentioned bacterial culture device, the culture dish placement groove is set to be cylindrical or square.
[0028] Furthermore, in the aforementioned bacterial culture device, the spring coiler, spring coiler box, and limiting baffle are all provided in pairs, symmetrically distributed on both sides of a culture dish tray. The limiting baffles are symmetrically arranged on the two side walls at the top of the culture dish placement groove, and the spring coiler boxes are symmetrically arranged on both sides at the bottom of the culture dish tray.
[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0030] 1. The bacterial culture device provided by this utility model achieves physical isolation and zoned culture of culture dishes through a multi-layer pull-out culture rack and a culture dish placement slot. The culture dish placement slot is matched with the size of the culture dishes used in the experiment, which plays a role in separating and supporting multiple stacks of culture dishes. The culture spaces are relatively independent, avoiding the slippage and scattering of stacked culture dishes, reducing the risk of cross-contamination caused by aerosols, ensuring the accuracy of test results, avoiding environmental pollution, and reducing the safety risk of personnel infection.
[0031] 2. The bacterial culture device provided by this utility model automatically pushes each stack of culture dishes upwards to fill in the gaps through the culture dish pushing mechanism, further ensuring that the culture dishes are stable and do not fall off during the movement, and ensuring that the culture dishes are always at the top of the culture rack, which is convenient for picking up and putting down, saving labor and being efficient.
[0032] 3. The bacterial culture device provided by this utility model has a detachable push-pull culture rack design, which matches the slide rail of the culture box for insertion and removal, making it convenient for batch handling of culture dishes. At the same time, it can improve the flexibility of space utilization and adapt to different experimental scales. Attached Figure Description
[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0034] Figure 1 Schematic diagram of the bacterial culture device provided in the embodiments of this utility model Figure 1 .
[0035] Figure 2 Schematic diagram of the bacterial culture device provided in the embodiments of this utility model Figure 2 .
[0036] Figure 3 A schematic diagram of the structure of the culture rack provided in an embodiment of this utility model.
[0037] Figure 4 This is a side cross-sectional view of the culture rack provided in an embodiment of the present invention.
[0038] Figure 5 A top view of the culture dish tray provided in an embodiment of this utility model.
[0039] Explanation of reference numerals in the attached figures:
[0040] 1. Box body, 2. Slide rail, 3. Culture rack, 4. Culture dish placement slot, 5. Culture dish, 6. Spring coil, 7. Culture dish tray, 8. Spring coil box, 9. Limiting baffle, 10. Notch, 11. Through hole, 12. Connecting rod, 13. Sliding block, 14. Sliding groove, 15. Door body, 16. Handle, 17. Sealing strip, 18. Buckle, 19. Viewing window. Detailed Implementation
[0041] To enable those skilled in the art to better understand the technical solutions of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the embodiments, or equivalent substitutions can be made to some of the technical features, but these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
[0042] Currently, existing bacterial incubators still require stacking culture dishes to improve space utilization and experimental efficiency. However, this results in each layer of culture dishes occupying a separate space, and the culture dishes on the upper layer are prone to slipping. This invention provides a bacterial culture device, such as... Figure 1-5 As shown, it includes a box body 1, a culture rack 3, a culture dish placement slot 4, and a culture dish pushing mechanism, wherein:
[0043] like Figure 1 and Figure 2 As shown, the chamber 1 has multiple sliding rails 2 on both sides inside; the chamber 1 can be a common type of incubator for culturing bacteria, such as a constant temperature incubator, CO2 incubator, anaerobic incubator, or constant temperature and humidity incubator. The chamber 1 is made of double-layer stainless steel plate with a polyurethane insulation layer (50mm thick) in between. A door 15 is opened on the front side of the chamber 1, and one side of the door 15 is hinged to the chamber. A 10mm thick tempered glass viewing window 19 can be embedded in the center of the door 15, or no viewing window can be provided. A handle 16 is provided on the outer edge of the door 15, and a magnetic sealing strip 17 (Shore hardness 60±5) can be provided on the inner edge of the door 15.
[0044] As the core improvement of this solution, the culture rack 3, in conjunction with the slide rail 2, enables a detachable and pull-out operation. For example, the slide rail 2 adopts a three-section slide rail, such as the commonly used three-section 304 stainless steel slide rail (load capacity ≥50kg / layer). The inner rail of the three-section slide rail is fixed to both sides of the culture rack 3 with M6 bolts, while the middle and outer rails are fixed to the inner walls of both sides of the box body 1 with pre-embedded nuts. When it is necessary to remove the culture rack 3 as a whole, the culture rack 3 can be pulled out, and the lever on the inner rail can be moved to separate the inner rail from the middle rail, thus allowing the culture rack to be disassembled as a whole. This facilitates the batch handling of culture dishes and the deep cleaning and sterilization of the culture rack. The culture rack 3 can adopt a stainless steel frame structure with guardrails, such as 304 stainless steel, which is sturdy and durable. Simultaneously, the bottom of the culture rack 2 has through holes 11 to facilitate airflow circulation.
[0045] A petri dish placement slot 4, located within the culture rack 3, is used to stack multiple petri dishes 5; specifically, as shown... Figure 3 As shown, each layer has multiple (e.g., four) culture dish placement slots. The depth of each culture dish placement slot 4 is 10-20cm (accommodating 6-10 culture dishes), and its diameter is 10-16cm (e.g., a 10cm diameter slot can accommodate a standard 90mm diameter culture dish, an 11cm diameter slot can accommodate a 100mm diameter standard culture dish, and a 16cm diameter slot can accommodate an extra-large 150mm diameter culture dish). The culture dish placement slot 4 can be cylindrical or square.
[0046] A petri dish propulsion mechanism, located within the petri dish placement slot 4, is used to automatically push and position the petri dish 5 upwards; specifically, as follows... Figure 4 and 5 As shown, the petri dish pushing mechanism includes a spring-loaded spring 6, a petri dish support plate 7, a spring-loaded spring box 8, and a limiting baffle 9. One end of the spring-loaded spring 6 is fixed to the top side wall of the petri dish placement slot 4, and the other end of the spring-loaded spring 6 is placed inside the spring-loaded spring box 8 at the bottom of the petri dish support plate 7. The limiting baffle 9 is fixed to the top of the petri dish placement slot 4 and is used to limit the position of the petri dish. By setting up the petri dish pushing mechanism, the petri dish can always be in the uppermost position, which is convenient for operators to quickly pick up and put down.
[0047] Furthermore, in a preferred embodiment, to facilitate placement and retrieval, a notch 10 is formed on one side of the culture dish placement slot 4, allowing a hand to be inserted from the side of the culture dish placement slot 4. The notch 10 may be U-shaped and have chamfered edges to prevent hand injuries.
[0048] In a preferred embodiment, the spring coil 6 is made of 301 stainless steel strip with a thickness of 0.3-0.5mm and a preload of 20-30N. It has a simple structure, is sturdy and durable, and has strong resilience.
[0049] In a preferred embodiment, the limiting baffle 9 is edged with silicone to improve the cushioning effect.
[0050] To improve the stability of the petri dish tray 7 during vertical movement, in a preferred embodiment, sliding blocks 13 are fixedly connected to both sides of the petri dish tray 7 via connecting rods 12. The sliding blocks 13 slide vertically within the sliding groove 14 inside the petri dish placement slot 4 (with a clearance of, for example, 0.5 mm). The sliding groove 14 can be a T-shaped groove. A spring coil 6 can pass through the gap in the middle of the connecting rod 12.
[0051] To improve the pushing force of the petri dish propulsion mechanism and further ensure the stability of the petri dish tray 7 during its up-and-down movement, in a preferred embodiment, the spring coil 6, the spring coil box 8, and the limiting baffle 9 are all provided in pairs and symmetrically distributed on both sides of one petri dish tray 7. The limiting baffle 9 is symmetrically arranged on the two side walls of the top of the petri dish placement groove 4, and the spring coil box 8 is symmetrically arranged on both sides of the bottom of the petri dish tray 7.
[0052] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0053] 1. The bacterial culture device provided by this utility model achieves physical isolation and zoned culture of culture dishes through a multi-layer pull-out culture rack and a culture dish placement slot. The culture dish placement slot is matched with the size of the culture dishes used in the experiment, which plays a role in separating and supporting multiple stacks of culture dishes. The culture spaces are relatively independent, avoiding the slippage and scattering of stacked culture dishes, reducing the risk of cross-contamination caused by aerosols, ensuring the accuracy of test results, avoiding environmental pollution, and reducing the safety risk of personnel infection.
[0054] 2. The bacterial culture device provided by this utility model automatically pushes each stack of culture dishes upwards to fill in the gaps through the culture dish pushing mechanism, further ensuring that the culture dishes are stable and do not fall off during the movement, and ensuring that the culture dishes are always at the top of the culture rack, which is convenient for picking up and putting down, saving labor and being efficient.
[0055] 3. The bacterial culture device provided by this utility model has a detachable push-pull culture rack design, which matches the slide rail of the culture box for insertion and removal, making it convenient for batch handling of culture dishes. At the same time, it can improve the flexibility of space utilization and adapt to different experimental scales.
[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0057] The embodiments described above are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the scope of the technology disclosed in this application, or make equivalent substitutions for some of the specific technologies; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application. All should be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.
Claims
1. A bacterial culture device, characterized in that, include: The box body (1) has multiple sliding rails (2) on both sides inside. The culture rack (3) can be detached and pulled out by cooperating with the slide rail (2); The petri dish placement slot (4) is set inside the culture rack (3) and is used to stack multiple petri dishes (5). The culture dish pushing mechanism is located in the culture dish placement slot (4) and is used to automatically push and position the culture dish (5) upwards. The culture dish pushing mechanism includes a spring coil (6), a culture dish support plate (7), a spring coil box (8), and a limiting baffle (9). One end of the spring coil (6) is fixed to the top side wall of the culture dish placement slot (4), and the other end of the spring coil (6) is placed in the spring coil box (8) at the bottom of the culture dish support plate (7). The limiting baffle (9) is fixed to the top of the culture dish placement slot (4).
2. The bacterial culture apparatus according to claim 1, characterized in that, Each layer of the culture dish placement slots (4) is configured to have multiple slots.
3. The bacterial culture apparatus according to claim 1, characterized in that, The depth of the culture dish placement groove (4) is 10-20cm and the diameter is 10-16cm.
4. The bacterial culture apparatus according to claim 1, characterized in that, A notch (10) is formed on one side of the culture dish placement groove (4).
5. The bacterial culture apparatus according to claim 1, characterized in that, The slide rail (2) is a three-section slide rail, wherein the inner rail of the three-section slide rail is fixed on both sides of the culture rack (3), and the middle rail and outer rail of the three-section slide rail are fixed on the inner walls of both sides of the box (1).
6. The bacterial culture apparatus according to claim 1, characterized in that, The coil spring (6) is made of 301 stainless steel.
7. The bacterial culture apparatus according to claim 1, characterized in that, The bottom of the culture rack (3) has a through hole (11).
8. The bacterial culture apparatus according to claim 1, characterized in that, The two sides of the petri dish tray (7) are fixedly connected to sliding blocks (13) by connecting rods (12). The sliding blocks (13) slide up and down in the sliding groove (14) inside the petri dish placement groove (4).
9. The bacterial culture apparatus according to claim 1, characterized in that, The culture dish placement groove (4) is set to be cylindrical or square.
10. The bacterial culture apparatus according to claim 1, characterized in that, The spring coil (6), spring coil box (8) and limiting baffle (9) are all set in pairs and are symmetrically distributed on both sides of a culture dish tray (7). The limiting baffle (9) is symmetrically set on the two side walls of the top of the culture dish placement groove (4), and the spring coil box (8) is symmetrically set on both sides of the bottom of the culture dish tray (7).