Multifunctional microbial culture dish
By fixing the glass cover with a threaded meshing transmission mechanism and controlling the heating with an air temperature sensor, the problems of easy detachment of the cover and unstable temperature in traditional microbial culture dishes are solved, and stable cultivation of microorganisms in the culture dish is achieved.
Patent Information
- Application Number
- CN202522584648.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-05
AI Technical Summary
The transparent glass lid of traditional microbial culture dishes is prone to falling off, affecting the purity of bacteria inside the dish, and it cannot maintain a constant temperature heating function, resulting in unstable culture temperature.
A multifunctional microbial culture dish was designed, which uses a threaded engagement transmission mechanism to fix the glass lid and uses an air temperature sensor and a heating plate to achieve constant temperature control, ensuring the stability of the temperature inside the culture dish.
It effectively prevents the glass lid from falling off, maintains the purity of microorganisms in the petri dish, and ensures stable temperature inside the petri dish by automatically regulating the temperature, adapting to temperature fluctuations in the laboratory environment.
Smart Images
Figure CN224930550U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of microbial culture technology, specifically a multifunctional microbial culture dish. Background Technology
[0002] Petri dishes are basic experimental tools used in microbiology laboratories for isolating, culturing, and observing bacteria. Petri dishes are usually composed of sterile glass or plastic plates and solid culture media. Their core function is to provide a suitable growth environment for bacteria, facilitating researchers to purify, amplify, and analyze bacterial characteristics.
[0003] Currently, to avoid interference from external microorganisms in the culture medium, commercially available microbial culture dishes typically use transparent glass lids to cover the rim. However, these traditional glass lids rely solely on gravity to press the dish firmly against the rim; the dish itself lacks a secure grip. This makes the lid highly susceptible to detaching from the rim during the masked culture process, even with slight impacts. This allows external microorganisms to fall onto the culture medium, disrupting the normal bacterial culture. Furthermore, traditional culture dishes lack independent temperature control; the culture process depends entirely on the laboratory environment temperature. However, laboratory temperatures are easily affected by factors such as day-night cycles and fluctuations in air conditioning operation, making it difficult to maintain a stable culture temperature over extended periods. Utility Model Content
[0004] This utility model discloses a multifunctional microbial culture dish to solve the problems of traditional culture dishes being unable to stably fix the transparent glass cover, resulting in the cover easily falling off, and the culture dish itself not having an independent constant temperature heating function, thus failing to maintain a stable microbial culture temperature for a long time.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional microbial culture dish, comprising a base plate, a housing, a ring frame, and a culture dish tray; a heating seat is bolted to the upper side of the housing, a push cylinder is engaged with the outer side of the heating seat, the ring frame is bolted to the upper side of the heating seat, the base plate is bolted to the lower side of the housing, and a control main board is bolted to the upper end of the base plate; a control panel is installed on the outer side of the housing; the ring frame is located inside the push cylinder, a plurality of guide rods are arranged around the ring frame, and a gripper is slidably connected to the outer side of the guide rod; a return spring is nested on the outer wall of the guide rod, a gripper is welded to one end of the return spring, and the ring frame is welded to the other end of the return spring; a threaded structure is provided on the outer side of the culture dish tray near the bottom, and a culture dish cover is placed on the upper side of the culture dish tray.
[0006] Preferably, the upper side of the heating base is evenly and densely covered with a large number of ventilation holes, the ventilation holes of the heating base are opposite to the heating plate, and the outer side of the heating base is provided with a threaded structure.
[0007] Preferably, the pusher is a cylindrical structure that runs vertically through the top and bottom. The inner side of the cylindrical structure of the pusher is provided with a threaded structure, and the threaded structure of the pusher is engaged with the threaded structure on the outer side of the heating seat.
[0008] Preferably, a through hole is provided on the outer side of the housing near the right side, an air temperature sensor is installed in the through hole of the housing, an electric heating plate is installed on the upper side of the housing, the electric heating plate is connected to the control main board by a wire, and the air temperature sensor is connected to the control main board by a wire.
[0009] Preferably, the upper side of the ring frame is provided with six sets of rectangular through slots, which are arranged in a circular array around the vertical central axis of the ring frame. Guide rods are welded inside the rectangular through slots of the ring frame, and the inner side of the ring frame is provided with a threaded structure. The outer side of the culture dish is threadedly engaged with the threaded structure of the ring frame.
[0010] Preferably, the number of grippers is six sets, the grippers are embedded in the rectangular through groove of the ring frame, each set of grippers has a bevel structure, a rubber gasket is glued to the grippers, and a through hole is provided on the grippers, with the guide rod inserted into the through hole of the gripper.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. In this utility model, the threaded transmission mechanism formed by the inner side thread of the push cylinder and the outer side thread structure of the heating seat operates, so that the inner edge of the top cylinder mouth of the push cylinder simultaneously squeezes the inclined structure of the six sets of clamps, and the rubber gaskets bonded to the six sets of clamps simultaneously squeeze and contact the outer side of the culture dish cover. This realizes the clamping and fixing function of the culture dish cover at the mouth of the culture dish, avoiding the cover from falling off due to slight external collisions, accidental contact or shaking during handling, and preventing the culture dish cover from lifting off the mouth of the dish and causing external bacteria to fall into the culture medium with the air, thus ensuring the purity and stability of microbial culture.
[0013] 2. In this utility model, an air temperature sensor is used to sense the laboratory ambient temperature in real time and transmit the data to the control motherboard. After the control motherboard analyzes the data through the temperature detection module, the heating control module automatically controls the start and stop of the heating plate. The heat generated by the heating plate is evenly transferred to the culture dish through the densely distributed air vents on the side of the heating base. This achieves the function of constant temperature culture of microorganisms in the culture dish, avoiding the impact of laboratory ambient temperature changes during day and night and fluctuations in air conditioning operation on the culture dish, and providing stable growth temperature conditions for microorganisms for a long time. Attached Figure Description
[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0015] In the attached diagram:
[0016] Figure 1 This is a schematic diagram of the overall structure of the petri dish of this utility model;
[0017] Figure 2 This is a schematic diagram of the petri dish structure from a top to a side view.
[0018] Figure 3 This is a front view schematic diagram of the petri dish of this utility model;
[0019] Figure 4 This is a top view of the petri dish of this utility model;
[0020] Figure 5 This is a cross-sectional structural diagram of the petri dish of this utility model;
[0021] Figure 6 This is a utility model Figure 5 Enlarged structural diagram of part A in the middle;
[0022] Figure 7 This is an exploded structural diagram of the petri dish of this utility model;
[0023] The following are labeled in the diagram: 1. Petri dish cover; 2. Clamping claw; 3. Rubber pad; 4. Push cylinder; 5. Control panel; 6. Housing; 7. Heating base; 8. Base plate; 9. Ring frame; 10. Control main board; 11. Air temperature sensor; 12. Heating plate; 13. Return spring; 14. Guide rod; 15. Petri dish tray. Detailed Implementation
[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0025] Example: Figures 1-7As shown, this utility model provides a multifunctional microbial culture dish, including a base plate 8, a housing 6, a ring frame 9, and a culture dish tray 15; a heating seat 7 is bolted to the upper side of the housing 6, a push cylinder 4 is engaged with the outer side of the heating seat 7, the ring frame 9 is bolted to the upper side of the heating seat 7, the base plate 8 is bolted to the lower side of the housing 6, and a control main board 10 is bolted to the upper end of the base plate 8; a control panel 5 is installed on the outer side of the housing 6; the ring frame 9 is located inside the push cylinder 4, and several guide rods 14 are arranged around the ring frame 9, with a gripper 2 slidably connected to the outer side of the guide rod 14, and a return spring 13 is nested in the outer wall of the guide rod 14, with a gripper 2 welded to one end of the return spring 13 and the ring frame 9 welded to the other end of the return spring 13; a threaded structure is provided on the outer side of the culture dish tray 15 near the bottom, and a culture dish cover 1 is placed on the upper side of the culture dish tray 15.
[0026] In this embodiment of the invention, the upper side of the heating base 7 is evenly and densely covered with a large number of ventilation holes. The ventilation holes of the heating base 7 are vertically opposite to the heating plate 12. The hot air generated by the heating plate 12 is evenly transferred to the culture dish 15 through the ventilation holes of the heating base 7, so that the microorganisms in the culture dish 15 are kept in a uniform heating temperature environment, ensuring that the microorganisms grow and reproduce evenly in the culture dish 15. The outer side of the heating base 7 is provided with a threaded structure.
[0027] In this embodiment of the invention, a through hole is provided on the outer side of the casing 6 near the right side. An air temperature sensor 11 is installed in the through hole of the casing 6. An electric heating plate 12 is installed on the upper side of the casing 6. The electric heating plate 12 is connected to the control main board 10 through a wire. The air temperature sensor 11 is also connected to the control main board 10 through a wire. The air temperature sensor 11 senses the laboratory temperature environment around the casing 6 in real time and transmits the temperature data signal to the temperature detection module of the control main board 10 for analysis and identification. When the laboratory temperature environment is lower than the temperature required for microbial culture, the heating control module of the control main board 10 controls the electric heating plate 12 to generate heat to heat the culture dish 15 through the wire. When the laboratory temperature environment meets the temperature required for microbial culture, the heating control module of the control main board 10 controls the electric heating plate 12 to turn off through the wire, thereby ensuring that the temperature environment of microorganisms in the culture dish 15 remains constant.
[0028] In this embodiment of the utility model, the upper side of the ring frame 9 is provided with six sets of rectangular through slots, which are arranged in a ring array around the vertical central axis of the ring frame 9. A guide rod 14 is welded in the rectangular through slot of the ring frame 9. The inner side of the ring frame 9 is provided with a threaded structure. The outer side of the culture dish 15 is threadedly engaged with the threaded structure of the ring frame 9. By twisting the culture dish 15, the culture dish 15 can be disassembled and separated from the inner side of the ring frame 9, which facilitates the individual sterilization and cleaning of the culture dish 15.
[0029] In this embodiment of the invention, there are six sets of grippers 2. The grippers 2 are embedded in the rectangular through slots of the ring frame 9. Each set of grippers 2 has a beveled structure and a rubber pad 3 is bonded to the gripper 2. The grippers 2 have through holes, and the guide rod 14 is inserted into the through holes of the grippers 2. When the pusher 4 pushes the six sets of grippers 2 to press the culture dish cover 1 inward along the six sets of rectangular through slots of the ring frame 9, the guide rod 14 cooperates with the rectangular through slots of the ring frame 9 to support the horizontal directional movement of the grippers 2, ensuring that the grippers 2 stably press and contact the culture dish cover 1. At this time, the rubber pad 3 bonded to the grippers 2 is in close contact with the outer side of the culture dish cover 1. The anti-slip properties of the rubber material increase the friction between the grippers 2 and the culture dish cover 1, improve the reliability of the six sets of grippers 2 in clamping and fixing the culture dish cover 1, and prevent the cover from sliding upward in the clamping state.
[0030] In this embodiment of the present invention, the pusher 4 is a cylindrical structure that runs vertically through the body. The inner side of the cylindrical structure of the pusher 4 is provided with a threaded structure. The threaded structure of the pusher 4 is engaged with the threaded structure on the outer side of the heating seat 7. During the rotation of the pusher 4 at the threaded structure on the outer side of the heating seat 7, the pusher 4 rotates up and down along the thread of the heating seat 7. When the pusher 4 moves upward, the inner edge of the top opening of the cylindrical structure of the pusher 4 pushes the inclined structure of the six sets of grippers 2 simultaneously, so that the six sets of grippers 2 move towards the center along the six sets of guide rods 14, ensuring that the six sets of grippers 2 simultaneously squeeze and hold the culture dish cover 1, so that the culture dish cover 1 is clamped and fixed at the opening of the culture dish plate 15, and the culture dish cover 1 is prevented from being dislodged from the opening of the culture dish plate 15 by external force collision.
[0031] The specific usage and functions are as follows:
[0032] In this invention, when performing constant-temperature culture of microbial culture dishes in a covered and clamped state, the culture dish cover 1 is first pressed and placed on the upper side of the culture dish tray 15. Then, the pusher 4 is manually rotated. Since the inner thread of the pusher 4 is engaged with the outer thread structure of the heating base 7, the pusher 4 rotates upward along the outer thread structure of the heating base 7. Simultaneously, the inner edge of the upper side of the pusher 4 pushes the inclined structure of the six sets of clamps 2. The six sets of clamps 2 move horizontally and centripetally along the six sets of rectangular through slots of the ring frame 9 and the guide rod 14 until the rubber of the six sets of clamps 2 is adhered. The adhesive pad 3 is tightly fitted to the outer side of the petri dish cover 1, thus completing the clamping and fixing of the petri dish cover 1 by the six sets of grippers 2. Then, the external power supply is plugged into the power interface of the control panel 5. The power interface of the control panel 5 supplies power to the control motherboard 10 through wires. Then, the temperature data to be maintained is manually entered on the control panel 5 and transmitted to the temperature detection module of the control motherboard 10 through wires. Then, the air temperature sensor 11 monitors the air temperature in real time during the experiment. The air temperature sensor 11 transmits the temperature data signal to the temperature detection module of the control motherboard 10 through wires for comparison and analysis with the temperature data entered on the control panel 5. When the laboratory temperature is lower than the temperature required for microbial culture, the heating control module of the control motherboard 10 controls the heating plate 12 to generate heat through wires. The heat passes through the vent holes of the heating base 7 to uniformly heat the petri dish 15. When the laboratory temperature meets the temperature required for microbial culture, the heating control module of the control motherboard 10 controls the heating plate 12 to turn off through wires, thus keeping the temperature environment of the microorganisms in the petri dish 15 constant. After the constant temperature culture is completed... During sampling, manually rotate the pusher 4 in the reverse direction. The pusher 4 moves downward along the threaded structure on the outer side of the heating base 7. The inner edge of the upper side of the pusher 4 disengages from the inclined structure of the six sets of grippers 2. The return spring 13 drives the six sets of grippers 2 to move horizontally and centrifugally along the six rectangular through slots of the ring frame 9 and the guide rod 14 until the rubber pads 3 attached to the six sets of grippers 2 disengage from the outer side of the culture dish cover 1. This completes the release and release of the six sets of grippers 2 on the culture dish cover 1. Then, the mouth of the culture dish cover 1 type culture dish plate 15 can be removed.
[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A multifunctional microbial culture dish, characterized in that: Includes base plate (8), housing (6), ring frame (9) and culture dish (15); A heating seat (7) is bolted to the top of the housing (6), a pusher (4) is engaged with the outer side of the heating seat (7), a ring frame (9) is bolted to the upper side of the heating seat (7), a base plate (8) is bolted to the lower side of the housing (6), a control main board (10) is bolted to the upper end of the base plate (8), and a control panel (5) is installed on the outer side of the housing (6). The ring frame (9) is located inside the push cylinder (4). Several guide rods (14) are arranged around the ring frame (9). The outer side of the guide rod (14) is slidably connected to the gripper (2). The outer wall of the guide rod (14) is nested with a return spring (13). One end of the return spring (13) is welded to the gripper (2), and the other end of the return spring (13) is welded to the ring frame (9). The outer side of the culture dish (15) is provided with a threaded structure near the bottom, and a culture dish cover (1) is placed on the upper side of the culture dish (15).
2. The multifunctional microbial culture dish according to claim 1, characterized in that: The upper surface of the heating seat (7) is provided with several ventilation holes evenly distributed. The ventilation holes of the heating seat (7) are opposite to the electric heating plate (12) and the outer side of the heating seat (7) is provided with a threaded structure.
3. The multifunctional microbial culture dish according to claim 1, characterized in that: The push cylinder (4) is a cylindrical structure that runs vertically through the top and bottom. The inner side of the cylindrical structure of the push cylinder (4) is provided with a threaded structure, and the threaded structure of the push cylinder (4) is engaged with the threaded structure on the outer side of the heating seat (7).
4. The multifunctional microbial culture dish according to claim 1, characterized in that: The outer side of the housing (6) is provided with a through hole near the right side. An air temperature sensor (11) is installed in the through hole of the housing (6). An electric heating plate (12) is installed on the upper side of the housing (6). The electric heating plate (12) is connected to the control main board (10) by a wire. The air temperature sensor (11) is connected to the control main board (10) by a wire.
5. A multifunctional microbial culture dish according to claim 1, characterized in that: The upper side of the ring frame (9) is provided with six sets of rectangular through slots. The rectangular through slots are arranged in a ring array around the vertical central axis of the ring frame (9). A guide rod (14) is welded in the rectangular through slot of the ring frame (9). The inner side of the ring frame (9) is provided with a threaded structure. The outer side of the culture dish (15) is threadedly connected to the threaded structure of the ring frame (9).
6. A multifunctional microbial culture dish according to claim 1, characterized in that: The number of grippers (2) is six sets. The grippers (2) are embedded in the rectangular through slot of the ring frame (9). Each set of grippers (2) has a bevel structure. A rubber pad (3) is attached to the gripper (2). The gripper (2) has a through hole. The guide rod (14) is inserted into the through hole of the gripper (2).