Microorganism culture dish
By introducing a regulating mechanism and a vacuum system into the microbial culture dish, the problems of difficult regulation and contamination of the culture area are solved, achieving flexible regional regulation and efficient anti-contamination effect, and improving space utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI WEILV ENVIRONMENTAL PROTECTION CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-28
AI Technical Summary
Existing microbial culture dishes are difficult to regulate the culture area and pose a risk of microbial contamination.
A microbial culture dish with an adjustment mechanism and a vacuum mechanism was designed. The distance between the partitions is adjusted by a worm gear drive, and a one-way valve and a vacuum system are used to prevent external impurities from entering, thus achieving adjustable partitions and preventing contamination.
It enables flexible adjustment of the microbial culture area and effective prevention of contamination, thereby improving space utilization.
Smart Images

Figure CN224172746U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biological equipment technology, specifically a microbial culture dish. Background Technology
[0002] A petri dish is a vessel used for culturing microorganisms or cells. It consists of a flat, disc-shaped base and a lid, and is generally made of glass or plastic. Petri dishes are basically divided into two categories: plastic and glass. Glass dishes can be used for the culture of plant materials, microorganisms, and adherent culture of animal cells. Plastic dishes, often made of polyethylene, are available in disposable and reusable versions, suitable for laboratory inoculation, streaking, and bacterial isolation procedures, and can be used for the culture of plant materials.
[0003] For example, Chinese patent CN219972286U discloses a microbial culture dish, which relates to the field of biological equipment. The microbial culture dish includes a cylindrical dish body with an open top, a partition sealed inside the dish body, a connecting tube sealed at the top opening of the dish body, a dish cap fitted on the connecting tube, two support sleeves vertically provided at the bottom of the dish body, and two connecting posts vertically provided at the corresponding positions on the top of the dish cap. The diameter and height of the connecting posts are equal to the inner diameter and depth of the corresponding support sleeves.
[0004] The aforementioned microbial culture dish still has certain shortcomings. While it can be stacked and stored stably and reliably, and the dishes are sufficiently isolated from each other to avoid mutual interference, the fixed separation area makes it difficult to meet the problem of adjusting the microbial culture area. Therefore, this application proposes a microbial culture dish to solve the above problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, this invention provides a microbial culture dish with advantages such as adjustable microbial culture area, thus solving the problem of difficulty in adjusting the microbial culture area.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a microbial culture dish, comprising a culture dish body, wherein two partitions are disposed inside the culture dish body, and an adjustment mechanism for adjusting the distance between the two partitions is provided inside the culture dish body, and a vacuum mechanism for drawing a vacuum inside the culture dish body is provided on the left side of the culture dish body.
[0007] Furthermore, positioning seats are provided on both the left and right sides of the main body of the culture dish and near its front end. Two viewing mirrors are provided on the front side of the main body of the culture dish. One-way valves are connected to both the upper and lower sides of the main body of the culture dish and at its center. Sealing rings are glued to the joints between the two partitions and the main body of the culture dish.
[0008] Furthermore, the adjustment mechanism includes a connecting rod rotatably connected between the front and rear side walls of the inner cavity of the culture dish body via bearings. A connecting plate is welded to the outer side of the connecting rod. Two fixing plates are fixed to the front side of the connecting plate and near its upper and lower ends. The interior of each of the two fixing plates is hinged to a hinge plate via a hinge shaft. A first gear is welded to the outer side of the connecting rod. A second gear meshes with the outer side of the first gear. A connecting rod is welded to the interior of the second gear. A worm gear is welded to the outer side of the connecting rod. A worm is driven by the outer side of the worm gear. An installation rod is welded to the front end of the worm.
[0009] Furthermore, the two hinge plates are respectively hinged to the opposite side of the two partitions via hinge shafts, and the left and right side walls of the inner cavity of the culture dish body are provided with multiple positioning grooves to allow the two partitions to move perpendicularly towards each other or away from each other.
[0010] Furthermore, the adjustment mechanism also includes a handle fixed to the front end of the mounting rod. The front end of the mounting rod penetrates the front side wall of the inner cavity of the culture dish body and extends to the front side of the culture dish body. The culture dish body and the mounting rod are rotatably connected by a sealed bearing.
[0011] Furthermore, a connecting block is fixed to the front side wall of the inner cavity of the culture dish body, and the connecting rod is rotatably connected to the inside of the connecting block through a bearing.
[0012] Furthermore, the vacuum mechanism includes a U-shaped tube connected to the left side of the culture dish body, with air valves installed at both the upper and lower ends of the U-shaped tube, and a connecting tube connected to the left end of the U-shaped tube at its center.
[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0014] This microbial culture dish, by turning the handle, causes the worm gear to rotate, which in turn drives the connecting plate to rotate. This causes two fixed plates to drive two hinged plates, making the two partitions move relative to each other or away from each other, adjusting the culture area between the upper and lower parts of the microorganisms. The one-way valve effectively prevents microorganisms, dust, and other impurities in the outside air from entering the culture dish, thus avoiding contamination of the cultured microorganisms. The two inwardly recessed positioning seats in the center allow multiple culture dish bodies to be stacked, improving space utilization. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model;
[0018] Figure 4 This is a schematic diagram of the vacuum mechanism of this utility model.
[0019] In the figure: 1. Petri dish body, 2. Adjustment mechanism, 201. Connecting rod, 202. Connecting plate, 203. Fixing plate, 204. Hinge plate, 205. First gear, 206. Second gear, 207. Connecting rod, 208. Worm gear, 209. Worm, 210. Mounting rod, 3. Positioning seat, 4. Vacuum mechanism, 401. U-tube, 402. Gas valve, 403. Connecting pipe, 5. Partition. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1 to 2 In this embodiment, a microbial culture dish includes a culture dish body 1, with two partitions 5 inside the culture dish body 1. The culture dish body 1 is provided with an adjustment mechanism 2 for adjusting the distance between the two partitions 5, and a vacuum mechanism 4 for drawing a vacuum inside the culture dish body 1 is provided on the left side of the culture dish body 1.
[0022] Positioning seats 3 are provided on both the left and right sides of the main body 1 near its front end. Two viewing mirrors are provided on the front side of the main body 1. One-way valves are connected to both the upper and lower sides of the main body 1 at its center. Sealing rings are glued to the joints between the two partitions 5 and the main body 1.
[0023] It is understandable that the center of the front side of the two positioning seats 3 is recessed into an equilateral trapezoidal space, allowing the positioning seats 3 on both sides of the body of another culture dish 1 to be stacked on their back sides, thereby improving space utilization. Through the one-way valves at the top and bottom ends, the external delivery pipes can be connected to transport microorganisms into the body of the culture dish 1, which are located on opposite sides of the two partitions 5. By setting the one-way valves, it is possible to effectively prevent microorganisms, dust and other impurities in the outside air from entering the culture dish, thereby avoiding contamination of the cultured microorganisms.
[0024] Please see Figure 3In this embodiment, the adjustment mechanism 2 includes a connecting rod 201 rotatably connected between the front and rear side walls of the inner cavity of the petri dish body 1 via bearings. A connecting plate 202 is welded to the outside of the connecting rod 201. Two fixing plates 203 are fixed to the front side of the connecting plate 202 and near its upper and lower ends. The interior of each fixing plate 203 is hinged to a hinge plate 204 via a hinge shaft. A first gear 205 is welded to the outside of the connecting rod 201. A second gear 206 meshes with the outside of the first gear 205. A connecting rod 207 is welded to the interior of the second gear 206. A worm gear 208 is welded to the outside of the connecting rod 207. A worm 209 drives the worm gear 208. An installation rod 210 is welded to the front end of the worm 209.
[0025] Two hinge plates 204 are respectively hinged to the opposite sides of the two partitions 5 via hinge shafts. The left and right side walls of the inner cavity of the culture dish body 1 are provided with multiple positioning grooves that allow the two partitions 5 to move perpendicularly towards each other or away from each other. The adjustment mechanism 2 also includes a handle fixed to the front end of the mounting rod 210. By rotating the handle, the worm gear 208 and worm 209 rotate and drive the connecting plate 202 to rotate, so that the two fixed plates 203 drive the two hinge plates 204 to move the two partitions 5 towards each other or away from each other, thereby adjusting the culture area between the upper and lower microorganisms. The front end of the mounting rod 210 penetrates the front side wall of the inner cavity of the culture dish body 1 and extends to the front side of the culture dish body 1. The culture dish body 1 and the mounting rod 210 are rotatably connected by a sealed bearing. A connecting block is fixed to the front side wall of the inner cavity of the culture dish body 1, and the connecting rod 207 is rotatably connected to the inside of the connecting block by a bearing.
[0026] Understandable,
[0027] Please see Figure 4 In this embodiment, the vacuum mechanism 4 includes a U-shaped tube connected to the left side of the culture dish body 1. Gas valves 402 are installed at both the upper and lower ends of the U-shaped tube, and a connecting tube 403 is connected to the left end of the U-shaped tube and located at its center.
[0028] The on / off state of the two ends of the U-tube can be controlled by the air valve 402 on the left side, which can set the vacuum environment of the two areas separately, thus improving practicality.
[0029] It is understandable that by turning the handle, the worm gear 208 and worm 209 rotate and drive the connecting plate 202 to rotate, so that the two fixed plates 203 drive the two hinge plates 204 to make the two partitions 5 move relative to each other or away from each other, adjusting the culture area between the upper and lower microorganisms. By setting a one-way valve, it can effectively prevent microorganisms, dust and other impurities in the outside air from entering the culture dish, thereby avoiding contamination of the cultured microorganisms. By setting two positioning seats 3 with the center recessed inward, multiple culture dish bodies 1 can be stacked to improve space utilization.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, any aspects not detailed in this utility model are well-known technologies to those skilled in the art.
[0031] The working principle of the above embodiments is as follows:
[0032] When microorganisms need to be cultured, the microorganisms can be transported to the culture dish body 1 by connecting the external delivery pipe through the one-way valves at both ends. The microorganisms are located on opposite sides of the two partitions 5. Before placement, the handle can be turned to rotate the worm gear 208 and worm 209, which will drive the connecting plate 202 to rotate. This will cause the two fixed plates 203 to drive the two hinged plates 204 to move the two partitions 5 relative to each other or opposite to each other, adjusting the culture area between the upper and lower microorganisms. The one-way valve can effectively prevent microorganisms, dust and other impurities in the outside air from entering the culture dish, thereby avoiding contamination of the cultured microorganisms. The air valve 402 on the left side can control the opening and closing of the upper and lower ends of the U-shaped tube, and can set the vacuum environment of the two areas separately, improving practicality. The positioning seat 3 can be set to stack multiple culture dish bodies 1 to improve space utilization.
[0033] 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.
[0034] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A microbial culture dish, comprising a culture dish body (1), characterized in that: The culture dish body (1) has two partitions (5) inside. The culture dish body (1) has an adjustment mechanism (2) for adjusting the distance between the two partitions (5) inside. The culture dish body (1) has a vacuum mechanism (4) for drawing vacuum inside the culture dish body (1) on the left side.
2. A microbial culture dish according to claim 1, characterized in that: Positioning seats (3) are provided on both the left and right sides of the culture dish body (1) and near its front end. Two viewing mirrors are provided on the front side of the culture dish body (1). One-way valves are connected to both the upper and lower sides of the culture dish body (1) and at its center. Sealing rings are glued to the joints between the two partitions (5) and the culture dish body (1).
3. A microbial culture dish according to claim 1, characterized in that: The adjustment mechanism (2) includes a connecting rod (201) rotatably connected between the front and rear side walls of the inner cavity of the petri dish body (1) via bearings. A connecting plate (202) is welded to the outside of the connecting rod (201). Two fixing plates (203) are fixed to the front side of the connecting plate (202) and near its upper and lower ends. The two fixing plates (203) are hinged to the interior of each of the two fixing plates (204) via hinge shafts. A first gear (205) is welded to the outside of the connecting rod (201). A second gear (206) meshes with the outside of the first gear (205). A connecting rod (207) is welded to the interior of the second gear (206). A worm gear (208) is welded to the outside of the connecting rod (207). A worm (209) drives the worm gear (208). An installation rod (210) is welded to the front end of the worm (209).
4. A microbial culture dish according to claim 3, characterized in that: The two hinge plates (204) are respectively hinged to the opposite side of the two partitions (5) by hinge shafts. The left and right side walls of the inner cavity of the culture dish body (1) are provided with multiple positioning grooves that allow the two partitions (5) to move perpendicularly towards each other or away from each other.
5. A microbial culture dish according to claim 3, characterized in that: The adjustment mechanism (2) also includes a handle fixed to the front end of the mounting rod (210). The front end of the mounting rod (210) passes through the front side wall of the inner cavity of the culture dish body (1) and extends to the front side of the culture dish body (1). The culture dish body (1) and the mounting rod (210) are rotatably connected by a sealed bearing.
6. A microbial culture dish according to claim 3, characterized in that: A connecting block is fixed to the front side wall of the inner cavity of the culture dish body (1), and the connecting rod (207) is rotatably connected to the inside of the connecting block through a bearing.
7. A microbial culture dish according to claim 1, characterized in that: The vacuum mechanism (4) includes a U-shaped tube connected to the left side of the culture dish body (1), with air valves (402) installed at both the upper and lower ends of the U-shaped tube, and a connecting tube (403) connected to the left end of the U-shaped tube and at its center.
Citation Information
Patent Citations
Microorganism culture dish
CN219972286U