An adjustable culture space microbial culture dish
Patent Information
- Application Number
- CN202522002048.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-09-17
AI Technical Summary
这种固定规格在实际使用中存在局限：当需要控制微生物生长空间时，大尺寸培养皿的多余底面积可能导致培养基分布过薄、营养浓度稀释，或因空间过大使微生物群落分布不均，影响生长状态与实验观测
[0014]本实用新型与现有技术相比优点在于：其培养皿主体上方螺纹连接的增高沿，能依据实验需求增加培养高度。这种连接方式不仅安装拆卸方便，稳固的螺纹结构还能防止增高沿在使用中松动脱落，保障培养空间稳定。同时，增高沿外侧壁的防滑槽，方便实验人员操作，即便手部潮湿或戴手套也不易滑落。内部的分隔板围绕中心等距分布，可划分不同培养区域，满足多种微生物同时培养需求。而分隔板与培养皿主体相接处的折断槽口，使得用户能根据实验规模，灵活拆除部分分隔板，扩大单一培养区域面积。无论是增加培养高度还是调整区域大小，都能快速实现，极大提升了培养皿的适用性与实验效率。
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Figure CN224812551U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of petri dish technology, specifically to a microbial petri dish with adjustable culture space. Background Technology
[0002] A petri dish is a laboratory vessel used for culturing microorganisms or cells. It is typically made of glass or plastic, and is flat and round, consisting of a base and a lid that fit together tightly to create a relatively sealed environment. Petri dishes come in various sizes, with common diameters including 50 mm and 90 mm. Their main function is to provide a clean and controlled growth space for samples, facilitating researchers' observation and study of the growth, reproduction, and metabolism of microorganisms and cells.
[0003] Currently, most petri dishes used in laboratories are of fixed specifications, with bottom areas such as 50 mm and 90 mm, which are predetermined during production. This fixed specification has limitations in practical use: when it is necessary to control the growth space for microorganisms, the excess bottom area of a large-sized petri dish may lead to an excessively thin distribution of the culture medium, diluted nutrient concentration, or uneven distribution of the microbial community due to excessive space, affecting growth status and experimental observation. Furthermore, traditional petri dishes cannot be adjusted in terms of bottom area to meet specific needs. Researchers can only choose dishes close to the required specifications or compensate for these deficiencies by partitioning the inoculation area and controlling the amount of culture medium. This not only increases the complexity of the operation but may also introduce errors due to human intervention. Utility Model Content
[0004] To solve the above-mentioned problems, this invention proposes a microbial culture dish with adjustable culture space, where the size of the culture dish can be adjusted and modified according to needs.
[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is: a microbial culture dish with adjustable culture space, comprising:
[0006] The petri dish body has a removable sealing cap at the top;
[0007] The raised edge and threaded sealing connection are located above the main body of the culture dish, with its sidewall flush with the main body of the culture dish, and can be adapted to the sealing cap;
[0008] A partition plate is fixedly installed on the bottom surface of the petri dish body and there are several of them. One end of the partition plate is fixedly connected to the same connecting column at the center of the petri dish body. The connecting column is fixedly installed on the bottom surface of the petri dish body. The other end of the partition plate is connected to the inner side wall of the petri dish body. A break-off groove is provided at the junction of the partition plate, the inner side wall of the petri dish body and the connecting column.
[0009] Furthermore, the lower end of the outer wall of the heightening device and the upper end of the inner wall of the culture dish body are provided with interlocking annular grooves, and the two annular grooves are provided with interlocking threads and thread grooves.
[0010] Furthermore, the height increase is provided with several anti-slip grooves along the outer side wall.
[0011] Furthermore, the separators are equidistantly distributed around the center of the culture dish body.
[0012] Furthermore, the partition plate is tightly fitted to the bottom surface, inner wall, and connecting column of the culture dish body.
[0013] Furthermore, the partition is made of plastic.
[0014] Compared with existing technologies, this invention has the following advantages: the threaded extension at the top of the petri dish body allows for increasing the culture height according to experimental needs. This connection method not only facilitates installation and disassembly, but the stable threaded structure also prevents the extension from loosening and falling off during use, ensuring a stable culture space. Simultaneously, the anti-slip grooves on the outer wall of the extension facilitate operation by laboratory personnel, preventing slippage even with wet hands or while wearing gloves. Internal partitions are evenly distributed around the center, allowing for the division of different culture areas to meet the simultaneous culture needs of multiple microorganisms. The break-out groove at the junction of the partitions and the petri dish body allows users to flexibly remove some partitions to expand the area of a single culture area according to the scale of the experiment. Whether increasing the culture height or adjusting the size of the area, it can be done quickly, greatly improving the applicability and experimental efficiency of the petri dish. Attached Figure Description
[0015] Figure 1 This is a perspective view of the present invention;
[0016] Figure 2 This is the front view of this utility model;
[0017] Figure 3 This is a structural schematic diagram of the present invention excluding the heightening edge portion;
[0018] Figure 4 This is a schematic diagram of the internal structure of the petri dish of this utility model.
[0019] As shown in the figure: 1. Petri dish body; 2. Sealing cap; 3. Heightening edge; 4. Divider plate; 5. Connecting column; 6. Break-off groove. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings.
[0021] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 3A microbial culture dish with adjustable culture space includes: a culture dish body 1 with a detachable sealing cap 2 on top; and a riser 3, threadedly sealed above the culture dish body 1, with its sidewall flush with the body 1 and adaptable to the sealing cap 2. The lower end of the outer wall of the riser 3 and the upper end of the inner wall of the culture dish body 1 have interlocking annular grooves. The two annular grooves have mating threads and threaded grooves, facilitating easy installation and disassembly while ensuring a stable and neat connection, preventing the riser 3 from loosening or falling off during use, ensuring a stable culture space, and facilitating a seal with the sealing cap 2. The outer wall of the riser 3 has several anti-slip grooves to increase the friction between the hand and the riser 3, making it easier for researchers to screw on the riser 3, especially when hands are wet or gloves are worn, reducing the risk of slippage.
[0022] Combined with appendix Figure 4 A partition plate 4 is fixedly installed on the inner bottom surface of the culture dish body 1, and several partition plates are provided. One end of the partition plate 4 is fixedly connected to the same connecting post 5 at the center of the culture dish body 1. The connecting post 5 is fixedly installed on the inner bottom surface of the culture dish body 1. The other end of the partition plate 4 is connected to the inner side wall of the culture dish body 1. A break groove 6 is provided at the junction of the partition plate 4 with the inner side wall of the culture dish body 1 and the connecting post 5. The partition plates 4 are evenly distributed around the center of the culture dish body 1, which can evenly divide the culture area, making the microbial culture environment of each area more consistent and facilitating comparative experiments and observations. The partition plates 4 are tightly fitted to the bottom surface, inner side wall and connecting post 5 of the culture dish body 1, effectively preventing leakage and mixing of microbial culture solutions in different areas, ensuring the independence and accuracy of the culture experiment. The partition plates 4 are made of plastic, which is lightweight and low in cost, easy to process and mold, and has a certain strength and corrosion resistance, meeting the needs of microbial culture experiments. Moreover, it can avoid fragmentation and cleaning when broken along the break groove.
[0023] The specific implementation method of this utility model is as follows: When using a microbial culture dish, if it is necessary to increase the culture height, the experimenter can first remove the sealing cap 2 from the main body 1 of the culture dish, and then hold the anti-slip groove on the outer wall of the raising edge 3 by hand, and screw the thread at the lower end of the raising edge 3 into the threaded groove at the upper end of the inner wall of the culture dish 1 to ensure a tight connection. Then, the sealing cap 2 is placed on top of the raising edge 3 to complete the seal. If it is necessary to divide the culture area, culture can be carried out in the space evenly divided by multiple partition plates 4 within the main body 1 of the culture dish; if it is necessary to expand the culture area, the unnecessary partition plates 4 can be carefully broken off along the break groove 6 at the junction of the partition plate 4 and the inner wall of the main body 1 and the connecting column 5. In this way, the culture space of the culture dish can be flexibly adjusted according to the specific needs of the microbial culture experiment, which is convenient and practical.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; for those skilled in the art, the specific meaning of the above term in this utility model can be understood according to the specific circumstances.
[0025] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A microbial culture dish with adjustable culture space, characterized in that, include: The petri dish body (1) has a detachable sealing cap (2) on top; The raised edge (3) and the threaded sealing connection are located above the main body (1) of the culture dish. Its side wall is flush with the main body (1) of the culture dish and can be adapted to the sealing cap (2). A partition plate (4) is fixedly installed on the bottom surface of the petri dish body (1) and several of them are provided. One end of the partition plate (4) is fixedly provided with the same connecting column (5) at the center of the petri dish body (1). The connecting column (5) is fixedly installed on the bottom surface of the petri dish body (1). The other end of the partition plate (4) is connected to the inner side wall of the petri dish body (1). A break groove (6) is provided at the junction of the partition plate (4) with the inner side wall of the petri dish body (1) and the connecting column (5).
2. The microbial culture dish with adjustable culture space according to claim 1, characterized in that: The lower end of the outer wall of the heightening edge (3) and the upper end of the inner wall of the culture dish body (1) are provided with interlocking annular grooves, and the two annular grooves are provided with interlocking threads and thread grooves.
3. A microbial culture dish with adjustable culture space according to claim 1, characterized in that: The heightening edge (3) has several anti-slip grooves on its outer side wall.
4. A microbial culture dish with adjustable culture space according to claim 1, characterized in that: The separators (4) are equidistantly distributed around the center of the culture dish body (1).
5. A microbial culture dish with adjustable culture space according to claim 1, characterized in that: The partition plate (4) is in close contact with the bottom surface, inner wall and connecting column (5) of the culture dish body (1).
6. A microbial culture dish with adjustable culture space according to claim 1, characterized in that: The partition plate (4) is made of plastic.