Floating sheet type culture dish
By designing a floating culture dish, the floating plate floats on the surface of the nutrient solution and is connected to the nutrient solution through through holes, which solves the problem of insufficient growth environment for black mold in existing culture dishes and achieves better strain cultivation results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2026-03-31
AI Technical Summary
When cultivating black mold in existing petri dishes, it is difficult to keep the inoculum at the surface of the liquid, which affects its growth environment.
Design a floating culture dish comprising a dish body, a lid, and a floating plate that floats on the surface of the nutrient solution. The floating plate has through holes and a biofilm, the through holes being connected to the nutrient solution inside the dish. The floating plate is easily controlled by a pick-and-place component.
It provides the optimal growth environment for microorganisms, especially for the cultivation of black mold, thus improving cultivation efficiency.
Smart Images

Figure CN224062774U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of petri dish equipment technology, and in particular to a floating plate type petri dish. Background Technology
[0002] A petri dish is a laboratory vessel used for the culture of microorganisms or cells. It consists of a flat, disc-shaped base and a lid, and is generally made of glass or plastic. The materials of petri dishes are basically divided into two categories: plastic and glass. Glass petri dishes can be used for the culture of plant materials, microorganisms, and may also be used for the adherent culture of animal cells. Plastic petri dishes are made of polyethylene and are available in disposable and reusable forms, suitable for laboratory inoculation, streaking, and bacterial isolation operations.
[0003] Although existing conventional petri dishes can cultivate microbial communities, they only cultivate microorganisms through the nutrient solution inside the dish. When it comes to fungi such as black mold, due to their growth characteristics, their optimal growth environment is at the surface of the nutrient solution inside the dish. However, there is no substrate to support the microorganisms, which will affect the cultivation of such fungi. Utility Model Content
[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a floating plate culture dish to solve the problems in the prior art, such as the difficulty in cultivating bacterial strains at the liquid surface and the difficulty in adapting to black mold and the like.
[0005] To achieve the above and other related objectives, this utility model provides a culture dish, including a dish body, a cover disposed on the dish body, and a float movably connected to the dish body and capable of floating on the surface of the nutrient solution. The float has a through hole communicating with the nutrient solution in the dish body and a biofilm disposed on the through hole for unidirectional transport of the nutrient solution.
[0006] By adopting the above technical solution, by setting a float in the dish, the float can float on the surface of the nutrient solution and connect to the nutrient solution below through the biofilm on the through hole, so that microorganisms can grow on the surface of the float, providing them with the best growth environment and making it easier to cultivate black mold species.
[0007] In one embodiment of this utility model, the shape of the float is adapted to the shape of the dish body, the cross-sectional shape of the float is set to U-shape, and the area of the float is smaller than the opening area of the dish body.
[0008] By adopting the above technical solution, the float can easily float to the surface of the nutrient solution, which is more conducive to the growth of microorganisms.
[0009] In one embodiment of the present invention, a plurality of through holes are provided and evenly distributed on the float, and a biofilm is provided in each of the through holes.
[0010] By adopting the above technical solution and using a multi-hole method, it is easier to deliver nutrient solution to the floating plate, which is more conducive to the growth of microorganisms.
[0011] In one embodiment of the present invention, the dish body is further provided with a pick-and-place assembly connected to the float and capable of picking up and placing the float. The pick-and-place assembly includes a sliding groove arranged vertically on the side wall of the dish body, a sliding rod slidably connected to the sliding groove, a connecting plate connecting the sliding rod and the float, and a pull ring arranged on the sliding rod for driving the sliding rod to move.
[0012] By adopting the above technical solution, the floating sheet inside the dish can be easily placed and removed through the pick-and-place component, which also facilitates the control of the floating sheet and its subsequent maintenance.
[0013] In one embodiment of the present invention, the slide rod is arranged in a horizontal direction, one end of the slide rod is slidably connected in a slide groove, and the slide rod and the connecting plate are detachably connected by fasteners.
[0014] By adopting the above technical solution, the sliding rod and the sliding groove can limit the movement of the float, so that the float can only move up and down in the vertical direction through the nutrient solution, which makes it easier to control the float. In addition, the sliding rod and the connecting plate can be detached, which facilitates the handling of the float.
[0015] In one embodiment of the present invention, the upper end of the slide groove is connected to the outside, and the opening of the slide groove is configured as an arc-shaped guide groove extending to both sides.
[0016] By adopting the above technical solution, it is easier to insert the slide rod into the slide groove.
[0017] As described above, the floating plate type culture dish of this utility model has the following beneficial effects: by setting floating plates in the dish, the floating plates can float on the surface of the nutrient solution and connect to the nutrient solution below through the biofilm on the through holes, so that microorganisms can grow on the surface of the floating plates, providing them with the best growth environment and making it easier to cultivate strains such as black mold. Attached Figure Description
[0018] Figure 1 The diagram shown is a schematic representation of the overall structure disclosed in the embodiments of this utility model.
[0019] Component designation explanation
[0020] 1. Dish body; 2. Top cover; 3. Float plate; 4. Through hole; 5. Pick-up and drop assembly; 6. Slide groove; 7. Slide rod; 8. Connecting plate; 9. Pull ring; 10. Fastener. Detailed Implementation
[0021] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0022] Please see Figure 1 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0023] like Figure 1 As shown, this utility model provides a floating culture dish, including a dish body 1, a cover body disposed on the dish body 1, and a floating plate 3 movably connected to the inside of the dish body 1 and capable of floating on the surface of the nutrient solution. The floating plate 3 has a through hole 4 communicating with the nutrient solution inside the dish body 1 and a biofilm disposed on the through hole 4 for unidirectional transport of the nutrient solution.
[0024] The shape of the float 3 is adapted to the shape of the dish 1. The cross-sectional shape of the float 3 is set to U-shape, and the area of the float 3 is smaller than the opening area of the dish 1. Multiple through holes 4 are provided and evenly distributed on the float 3. Each through hole 4 is provided with a biofilm.
[0025] The dish body 1 is also provided with a pick-and-place assembly 5 that is connected to the float 3 and can pick up and place the float 3. The pick-and-place assembly 5 includes a sliding groove 6 arranged vertically on the side wall of the dish body 1, a sliding rod 7 slidably connected to the sliding groove 6, a connecting plate 8 connecting the sliding rod 7 and the float 3, and a pull ring 9 arranged on the sliding rod 7 for driving the sliding rod 7 to move. The pull ring 9 is arranged on the upper side of the sliding rod 7.
[0026] The slide rod 7 is located on the upper side of the float 3, and the connecting plate 8 is located on one side of the float 3. The slide rod 7 and the connecting plate 8 are connected by fasteners 10, which can be fastening bolts, so that the slide rod 7 and the connecting plate 8 can be detachably connected.
[0027] The slide rod 7 is set in the horizontal direction. One end of the slide rod 7 is slidably connected to the slide groove 6. The upper end of the slide groove 6 is connected to the outside. The opening of the slide groove 6 is set as an arc-shaped guide groove extending to both sides.
[0028] In summary, this invention provides a floating plate 3 inside the dish body 1, allowing the floating plate 3 to float on the surface of the nutrient solution and connect to the nutrient solution below through the biofilm on the through hole 4. This enables microorganisms to grow on the surface of the floating plate 3, providing them with an optimal growth environment and making it easier to cultivate strains such as black mold.
[0029] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.
[0030] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A floating petri dish, characterized by, The device comprises a dish body, a cover body arranged on the dish body, and a floating piece movably connected in the dish body and capable of floating on the surface of nutrient solution, wherein the floating piece is provided with through holes communicating with the nutrient solution in the dish body and biological membranes arranged on the through holes for one-way delivery of the nutrient solution.
2. The floating patch culture dish of claim 1, wherein: The shape of the floating piece is adapted to the shape of the dish body, the cross-sectional shape of the floating piece is arranged as a U shape, and the area of the floating piece is smaller than the opening area of the dish body.
3. The floating patch culture dish of claim 1, wherein: The through holes are arranged in multiple and uniformly distributed on the bottom of the floating piece, and each of the through holes is provided with a biological membrane.
4. The floating patch culture dish of claim 1, wherein: The dish body is further provided with a taking and placing assembly connected with the floating piece and capable of taking and placing the floating piece, the taking and placing assembly comprises a sliding groove arranged on the side wall of the dish body in the vertical direction, a sliding rod slidably connected on the sliding groove, a connecting plate connecting the sliding rod and the floating piece, and a pull ring arranged on the sliding rod for driving the displacement of the sliding rod.
5. The floating patch culture dish of claim 4, wherein: The sliding rod is arranged in the horizontal direction, one end of the sliding rod is slidably connected in the sliding groove, and the sliding rod and the connecting plate are detachably connected through fasteners.
6. The floating patch culture dish of claim 4, wherein: The upper end of the sliding groove is communicated with the outside, and the opening of the sliding groove is arranged as an arc-shaped guide groove extending to both sides.