A petri dish cleaning and drying apparatus
By designing a petri dish cleaning and drying device, a drying oven and a fan are used to accelerate the drying process of the petri dishes, solving the problem of slow natural drying speed and achieving a fast and uniform drying effect, which is suitable for petri dishes of different sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HOLLY NANJING BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-31
AI Technical Summary
In existing technologies, the natural drying speed of petri dishes is relatively slow and is easily affected by environmental humidity, which affects their efficiency.
A petri dish cleaning and drying device was designed, including a drying box, a support frame, a fan, a vent, and a support assembly. It provides a closed space to ensure stable temperature and humidity, uses the fan to generate airflow to accelerate moisture evaporation, and the support assembly is adaptable to petri dishes of different sizes.
It enables rapid and uniform drying of petri dishes, reduces waiting time, improves drying efficiency, prevents moisture accumulation, and is adaptable to petri dishes of different sizes.
Smart Images

Figure CN224580602U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of petri dish drying, specifically a petri dish cleaning and drying device. Background Technology
[0002] A petri dish is a round glass or plastic vessel used to hold liquid or solid agar culture media for cell culture. It consists of a flat, disc-shaped base and a lid. It is mainly used for experiments such as the culture of microorganisms or cells. After use, the petri dish needs to be cleaned in preparation for the next use. During the cleaning process, cleaning agents and neutralizing solutions are used to assist in cleaning. Therefore, after use, the surface of the petri dish needs to be dried to remove any residual moisture.
[0003] Natural air drying is a common method of drying. After cleaning, the petri dishes are placed upside down on a clean rack or a special drying rack and allowed to air dry naturally at room temperature. This method is simple and easy to implement, but the drying speed is relatively slow. Prolonged natural air drying may affect the use of the petri dishes and is easily affected by the ambient humidity, making it less practical.
[0004] In summary, this invention provides a petri dish cleaning and drying device to solve the above-mentioned problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] A petri dish cleaning and drying device, comprising,
[0007] The placement unit includes a drying oven, a door assembly disposed on the front of the drying oven, storage assemblies disposed on both sides of the drying oven, and a ventilation opening on the top of the drying oven;
[0008] The drying unit includes a support frame disposed in the inner cavity of the drying chamber, a fan disposed in the inner cavity of the support frame, a fixing plate fixedly connected to both sides of the bottom of the support frame, the bottom of the fixing plate being fixedly connected to the inner wall of the drying chamber, a support plate fixedly connected to both sides of the top of the support frame, and a support assembly disposed on the top of the support plate.
[0009] Furthermore, in this utility model, the drying oven includes a movable door hinged to the front of the drying oven, a handle fixedly connected to the front of the movable door, and a magnet fixedly connected to the left side of the drying oven and the movable door on the side closest to each other. The two magnets have opposite magnetic properties and are magnetically connected.
[0010] Furthermore, in this utility model, the storage assembly includes a storage box fixedly connected to both sides of the drying oven, a sealing plate disposed on the top of the storage box, the bottom of the sealing plate penetrating through the top of the storage box and slidably connected to the inner cavity of the storage box, and a push block fixedly connected to the front of the sealing plate.
[0011] Furthermore, in this utility model, the support assembly includes a fixed frame fixedly connected to the top of the support plate, support frames disposed on both sides of the fixed frame, and a threaded rod movably connected to the inner cavity of the fixed frame via bearings. The two ends of the threaded rod pass through the inner cavities of the two support frames and are threadedly connected to their inner cavities. The threads on both sides of the surface of the threaded rod are arranged in opposite directions.
[0012] Furthermore, in this utility model, the support assembly also includes a rotating block fixedly connected to the center of the threaded rod surface, and a limiting post fixedly connected to the front and rear ends of the two support frames on the same side. The end of the limiting post away from the support frame passes through the inner cavity of the fixed frame and is slidably connected to its inner cavity.
[0013] Beneficial effects: This utility model has the following beneficial effects:
[0014] This utility model drying oven provides a closed space for placing petri dishes to be dried, ensuring relatively stable temperature and humidity conditions during the drying process. The door assembly allows users to easily open and close the drying oven to put in and take out petri dishes while maintaining the oven's airtightness. Ventilation vents allow air to circulate within the drying oven, helping to accelerate the drying process and prevent moisture accumulation. The fan generates airflow to accelerate the evaporation of moisture from the surface of the petri dishes, thereby achieving rapid drying, increasing drying speed, reducing waiting time, and ensuring uniform drying. The support assembly, through adjusting the threaded rod, accommodates petri dishes of different sizes, ensuring they can be stably placed within the drying oven. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the drying oven and the movable door of this utility model in their separated state;
[0017] Figure 3 This is a schematic diagram of the connection structure of the support frame, fan and fixing plate of this utility model;
[0018] Figure 4 This is a schematic diagram of the main structure of the support component of this utility model.
[0019] In the picture:
[0020] 1. Placement unit; 101. Drying oven; 102. Door assembly; 1021. Movable door; 103. Storage assembly; 1031. Storage box; 1032. Sealing plate; 104. Ventilation opening; 2. Drying unit; 201. Support frame; 202. Fan; 203. Fixing plate; 204. Support plate; 205. Support assembly; 2051. Fixing frame; 2052. Support frame; 2053. Threaded rod; 2054. Rotating block; 2055. Limiting post. Detailed Implementation
[0021] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.
[0022] Example 1
[0023] like Figure 1-4 The image shown is the first embodiment of this utility model, which provides a petri dish cleaning and drying device, comprising:
[0024] The placement unit 1 includes a drying oven 101, a door assembly 102 disposed on the front of the drying oven 101, storage assemblies 103 disposed on both sides of the drying oven 101, and a ventilation opening 104 opened on the top of the drying oven 101.
[0025] The drying unit 2 includes a support frame 201 disposed in the inner cavity of the drying chamber 101, a fan 202 disposed in the inner cavity of the support frame 201, a fixing plate 203 fixedly connected to both sides of the bottom of the support frame 201, the bottom of the fixing plate 203 being fixedly connected to the inner wall of the drying chamber 101, a support plate 204 fixedly connected to both sides of the top of the support frame 201, and a support assembly 205 disposed on the top of the support plate 204.
[0026] like Figure 1-4As shown, the drying chamber 101 provides a closed space for placing petri dishes to be dried, ensuring relatively stable temperature and humidity conditions during the drying process. The door assembly 102 allows users to easily open and close the drying chamber 101 to place and remove petri dishes while maintaining the airtightness of the drying chamber 101. The storage assembly 103 provides additional storage space for unused or dried petri dishes, as well as cleaning tools and reagents that may be needed. The vent 104 allows air to circulate within the drying chamber 101, helping to accelerate the drying speed and prevent moisture accumulation. The support frame 201 provides support for the fan 202 and other components, ensuring their stable operation within the drying chamber 101. The fan 202 generates airflow during operation, accelerating the evaporation of moisture from the surface of the petri dishes, thereby achieving rapid drying, increasing the drying speed, reducing waiting time, and ensuring uniform drying. The fixing plate 203 and the support plate 204 cooperate to provide support and enhance the structural strength of the equipment. The support assembly 205 adapts to petri dishes of different sizes by adjusting the threaded rod 2053, ensuring that they can be stably placed within the drying chamber 101.
[0027] Example 2
[0028] Reference Figure 2 This is the second embodiment of the present invention, which is based on the previous embodiment.
[0029] In this embodiment, the drying oven 101 includes a movable door 1021 hinged to the front of the drying oven 101, a handle fixedly connected to the front of the movable door 1021, and a magnet fixedly connected to the left side of the drying oven 101 and the movable door 1021 on the side closest to each other. The two magnets have opposite magnetic properties and are magnetically connected.
[0030] The storage assembly 103 includes a storage box 1031 fixedly connected to both sides of the drying oven 101, a sealing plate 1032 disposed on the top of the storage box 1031, the bottom of the sealing plate 1032 penetrating through the top of the storage box 1031 and slidingly connected to the inner cavity of the storage box 1031, and a push block fixedly connected to the front of the sealing plate 1032.
[0031] like Figure 2 As shown, the movable door 1021 and handle cooperate to allow users to easily open and close the door of the drying oven 101, improving the convenience of operation. The magnet ensures that the movable door 1021 can fit tightly against the drying oven 101 when closed, preventing air leakage and ensuring stable conditions during the drying process. The storage box 1031 and sealing plate 1032 cooperate to provide a sealed storage space for placing unused or dried petri dishes, protecting the petri dishes from external contamination. The pusher allows users to easily push the sealing plate 1032 to open or close the storage box 1031.
[0032] Example 3
[0033] Reference Figure 4 This is the third embodiment of the present invention, which is based on the first two embodiments.
[0034] In this embodiment, the support assembly 205 includes a fixed frame 2051 fixedly connected to the top of the support plate 204, support frames 2052 disposed on both sides of the fixed frame 2051, and a threaded rod 2053 movably connected to the inner cavity of the fixed frame 2051 via bearings. The two ends of the threaded rod 2053 respectively penetrate into the inner cavities of the two support frames 2052 and are threadedly connected to their inner cavities. The threads on both sides of the surface of the threaded rod 2053 are arranged in opposite directions.
[0035] The support assembly 205 also includes a rotating block 2054 fixedly connected to the center of the surface of the threaded rod 2053, and a limiting post 2055 fixedly connected to the front and rear ends of the two support frames 2052 on the same side. The end of the limiting post 2055 away from the support frame 2052 passes through the inner cavity of the fixed frame 2051 and is slidably connected to its inner cavity.
[0036] like Figure 4 As shown, the fixed frame 2051 provides support for the threaded rod 2053 and ensures its stable operation. The threaded rod 2053 can be rotated to adjust the distance between the two support frames 2052, thereby adapting to petri dishes of different sizes and improving the flexibility and applicability of the equipment. The rotating block 2054 allows the user to easily rotate the threaded rod 2053 to adjust the distance between the support frames 2052. The limiting post 2055 can limit the range of movement of the support frame 2052 and prevent its angle from deflecting.
[0037] When using the product, first open the movable door 1021. Adjust the distance between the two support frames 2052 according to the size of the petri dish to be dried. When adjusting the distance, first rotate the rotating block 2054. The rotating block 2054 drives the threaded rod 2053 to rotate. As the threaded rod 2053 rotates, because the threads on both sides of its surface are set in opposite directions and are connected to the inner cavity of the two support frames 2052, the two support frames 2052 can be moved synchronously and in opposite directions during the rotation of the threaded rod 2053 until the distance between the two support frames 2052 matches the inner diameter of the petri dish. When drying the petri dish, first take out the cleaned petri dish, shake off the large water droplets on its surface, and then invert it on top of the two support frames 2052. Then, start the fan 202 through the external controller and close the movable door 1021. When the fan 202 is running, it can accelerate the air circulation speed, thereby accelerating the evaporation efficiency of moisture on the surface of the petri dish. After drying, the petri dish can be taken out and stored inside the storage box 1031.
[0038] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.
[0039] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.
Claims
1. A petri dish cleaning and drying apparatus, characterized by: include, The placement unit (1) includes a drying box (101), a door assembly (102) disposed on the front of the drying box (101), storage assemblies (103) disposed on both sides of the drying box (101), and a vent (104) opened on the top of the drying box (101). The drying unit (2) includes a support frame (201) disposed in the inner cavity of the drying chamber (101), a fan (202) disposed in the inner cavity of the support frame (201), a fixing plate (203) fixedly connected to both sides of the bottom of the support frame (201), the bottom of the fixing plate (203) being fixedly connected to the inner wall of the drying chamber (101), a support plate (204) fixedly connected to both sides of the top of the support frame (201), and a support assembly (205) disposed on the top of the support plate (204).
2. The culture dish washing and drying apparatus of claim 1, wherein: The drying oven (101) includes a movable door (1021) hinged to the front of the drying oven (101), a handle fixedly connected to the front of the movable door (1021), and a magnet fixedly connected to the left side of the drying oven (101) and the movable door (1021) on the side closest to each other. The two magnets have opposite magnetic properties and are magnetically connected.
3. The culture dish washing and drying apparatus of claim 1 wherein: The storage assembly (103) includes a storage box (1031) fixedly connected to both sides of the drying oven (101), a sealing plate (1032) disposed on the top of the storage box (1031), the bottom of the sealing plate (1032) penetrating through the top of the storage box (1031) and slidably connected to the inner cavity of the storage box (1031), and a push block fixedly connected to the front of the sealing plate (1032).
4. The culture dish washing and drying apparatus of claim 1 wherein: The support assembly (205) includes a fixed frame (2051) fixedly connected to the top of the support plate (204), support frames (2052) disposed on both sides of the fixed frame (2051), and a threaded rod (2053) movably connected to the inner cavity of the fixed frame (2051) via bearings. The two ends of the threaded rod (2053) respectively penetrate into the inner cavities of the two support frames (2052) and are threadedly connected to their inner cavities. The threads on both sides of the surface of the threaded rod (2053) are arranged in opposite directions.
5. The culture dish washing and drying apparatus of claim 4, wherein: The support assembly (205) further includes a rotating block (2054) fixedly connected to the center of the surface of the threaded rod (2053), and a limiting post (2055) fixedly connected to the front and rear ends of the two support frames (2052) on the same side. The end of the limiting post (2055) away from the support frame (2052) extends into the inner cavity of the fixed frame (2051) and is slidably connected to its inner cavity.