Device capable of quickly and uniformly mixing and cooling culture dish

Abstract

The utility model discloses a device capable of quickly and uniformly mixing and cooling a culture dish, which comprises a shell and a culture dish arranged in the shell, a rotating assembly and a cold air assembly are further arranged in the shell, and the rotating assembly and the cold air assembly are arranged side by side. The direct-current brushless motor is adopted to drive the rotating table to rotate, and the culture dishes on the rotating table are fixed by the telescopic fixing rod, so that sample liquid and culture liquid in the culture dishes are fully and uniformly mixed, and the problems that mixed liquid overflows or is unevenly mixed and the like due to the fact that shaking force and a shaking method are incorrect during manual mixing can be solved; the culture dish can be quickly cooled and solidified after being uniformly mixed, so that the time and space occupied by natural cooling are reduced.

Description

Technical Field

[0001] This utility model relates to a petri dish culture device, specifically a device that can quickly mix and cool petri dishes, belonging to the field of microbial detection technology. Background Technology

[0002] The number of microorganisms in food is an important indicator and scientific basis for measuring food hygiene quality. The pour method is commonly used in microbial testing. After the sample is appropriately diluted, culture medium is added using the pour method and mixed thoroughly with the sample solution. After cooling and solidification, the mixture is placed in an incubator for incubation.

[0003] In the prior art, such as the cell rapid cooling device disclosed in CN215983519U, there is a shell, a sealed cabinet door hinged to the front end of the shell, a baffle fixedly installed near the bottom of the sealed cabinet door at the front end of the shell, a fixing plate fixedly installed inside the shell, and fixing rods fixedly connected to the top two ends of the fixing plate. After the staff puts a large number of culture dishes containing cells into the cooling device for storage, when it is necessary to cool the cells in the culture dishes, the staff turns on the refrigerator. The refrigerator sends low-temperature gas through two pipes to the baffle plate, and then through the baffle plate sends the low-temperature gas into the shell. The pipes are arranged in an arc shape and are centrally symmetrical, which allows the low-temperature gas to circulate and cool the cells in the culture dishes rapidly within the shell, achieving a better cooling effect. Although the existing device can achieve the cooling of the culture dishes, it requires manual shaking of the culture dishes to mix them evenly. However, if the shaking is too strong, the mixture will overflow the culture dish; if the shaking is too weak, the sample solution cannot be evenly distributed, resulting in inaccurate detection of the culture solution. The cooling and solidification time after pouring is relatively long, which may take up a lot of time and space in batch operations. Therefore, it is crucial to mix the culture medium and sample solution evenly and cool them in microbial detection, which directly affects the accuracy and efficiency of the detection. To this end, a device that can quickly mix and cool the culture dish was designed. Utility Model Content

[0004] The purpose of this invention is to provide a device for rapidly mixing and cooling culture dishes in order to solve at least one of the above-mentioned technical problems. This device enables the culture solution and sample solution to be rapidly mixed and cooled, thereby saving the mixing and cooling time of the culture dishes and reducing the occupation of working space.

[0005] The present invention achieves the above objectives through the following technical solution: a device for rapidly mixing and cooling a culture dish, comprising a shell and a culture dish, the culture dish being disposed inside the shell; the shell also provides a rotating component and a cooling air component, the rotating component and the cooling air component being arranged side by side;

[0006] The rotating assembly includes a telescopic fixing rod, a rotating table, a connecting shaft, and a DC brushless motor. The rotating table is fixedly connected to the rotating shaft of the DC brushless motor via the connecting shaft. The telescopic fixing rod is connected to the top of the rotating table. The petri dishes are stacked on the rotating table, and the petri dishes are fixedly clipped between the telescopic fixing rod and the rotating table.

[0007] The air cooling assembly includes a water intake pipe, a water-absorbing fiber evaporator, a water delivery pipe, a water pump, a swivel blade, and a fan. The swivel blade is mounted on the rotating shaft of the fan. The water intake pipe is connected to the water inlet of the water pump, one end of the water delivery pipe is connected to the water outlet of the water pump, and the other end of the water delivery pipe is connected to the water-absorbing fiber evaporator. The water-absorbing fiber evaporator is installed at the rear of the fan.

[0008] As a further improvement of this utility model: a sample chamber door is provided on the front side of the shell, a hinge is connected between the sample chamber door and the shell, a sample chamber door handle is installed on the sample chamber door, and supports are installed at the four corners of the bottom of the shell.

[0009] As a further improvement of this utility model: an instrument status display, a rotation control module, a cold air control module, and a stop control module are also connected to the front side of the housing. The instrument status display, rotation control module, cold air control module, and stop control module are arranged side by side below the sample chamber door.

[0010] As a further improvement of this utility model: an air outlet is provided at the top of the shell, an air inlet is provided on the rear side of the shell, and an air inlet filter screen is fixedly connected to the air inlet and an air outlet filter screen is fixedly connected to the air outlet.

[0011] As a further embodiment of this utility model: a handle is fixedly connected to the upper end face of the horizontal body of the telescopic fixed rod, an upper threaded anti-slip pad is fixedly connected to the lower end face of the horizontal body of the telescopic fixed rod, and a lower threaded anti-slip pad is fixedly connected to the rotating platform.

[0012] As a further embodiment of this utility model, the cooling air assembly also includes a water tank, a water suction hose, and a drain pipe. One end of the water suction hose is inserted into the water tank, and the other end of the water suction hose is connected to the water suction pipe. One end of the drain pipe is connected to the bottom end of the water-absorbing fiber evaporator, and the other end of the drain pipe is connected to the water tank.

[0013] As a further improvement of this utility model: a water tank door is provided on the side of the water tank near the outer wall of the shell, and a water tank handle is installed on the water tank door.

[0014] As a further improvement of this utility model: a connecting rod is provided above the water tank, the top end of the connecting rod is fixedly connected to the top of the shell, the middle part of the connecting rod is fixedly connected to the fan, and several guide vanes are provided at the air outlet of the fan.

[0015] As a further embodiment of this utility model: a base plate is fixedly connected to the bottom of the shell, the water tank is slidably placed on the base plate, and the DC brushless motor is fixedly connected to the base plate.

[0016] The beneficial effects of this utility model are:

[0017] 1. A DC brushless motor drives the rotary table, and a telescopic fixing rod secures the petri dishes on the rotary table, ensuring thorough and uniform mixing of the sample solution and culture medium. This avoids problems such as spillage or uneven mixing caused by incorrect shaking force or method during manual mixing, while also reducing the risk of contamination. It also allows for the simultaneous processing of multiple petri dishes, improving detection efficiency. Furthermore, as mentioned above, both the rotary table and the telescopic fixing rod are equipped with threaded anti-slip pads to firmly hold the samples in place and prevent slippage.

[0018] 2. Equipped with a cooling air system, the culture dish can be rapidly cooled and solidified after mixing, reducing the time and space required for natural cooling. Through the configuration of air inlet, air outlet, fan, and water pump, the water pump draws water from the tank into the pump, and then transports the water to the absorbent fiber evaporator through a water pipe. The fan draws air in through the air inlet, filters dust, and the absorbent fiber evaporator evaporates some of the water. The air is then blown out through guide vanes, achieving a cooling effect inside the chamber, and is discharged through the air outlet, thus accelerating the cooling process. Ice cubes or ice crystal boxes can be added to the water tank for further temperature reduction. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present utility model;

[0020] Figure 2 This is a side cross-sectional view of the present invention.

[0021] Figure 3 This is a schematic diagram of the rear view structure of this utility model.

[0022] In the diagram: 1. Shell, 2. Sample chamber door, 3. Hinge, 4. Instrument status display, 5. Rotation control module, 6. Cold air control module, 7. Stop control module, 8. Support, 9. Sample chamber door handle, 10. Air outlet, 11. Air outlet dust filter, 12. Handle, 13. Upper threaded anti-slip pad, 14. Telescopic fixing rod, 15. Petri dish, 16. Lower threaded anti-slip pad, 17. Rotary table, 18. Connecting shaft, 19. DC brushless motor, 20. Water tank, 21. Water tank handle, 22. Water tank door, 23. Water suction hose, 24. Drain pipe, 25. Air inlet, 26. Air inlet dust filter, 27. Water suction pipe, 28. Water-absorbing fiber evaporator, 29. Water supply pipe, 30. Water pump, 31. Oscillating blade, 32. Connecting rod, 33. Guide vane, 34. Fan, 35. Base plate. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] like Figures 1 to 3 As shown, an apparatus for rapidly mixing and cooling a culture dish includes a housing 1 and a culture dish 15, the culture dish 15 being disposed inside the housing 1; the housing 1 also includes a rotating assembly and a cooling assembly, the rotating assembly and the cooling assembly being arranged side by side;

[0026] The rotating assembly includes a telescopic fixing rod 14, a rotating platform 17, a connecting shaft 18, and a DC brushless motor 19. The rotating platform 17 is fixedly connected to the rotating shaft of the DC brushless motor 19 via the connecting shaft 18. The telescopic fixing rod 14 is connected to the top of the rotating platform 17. The culture dishes 15 are stacked on the rotating platform 17, and the culture dishes 15 are fixedly clipped between the telescopic fixing rod 14 and the rotating platform 17. The DC brushless motor 19 drives the rotating platform 17 to rotate, and the telescopic fixing rod 14 is used to fix the culture dishes on the rotating platform 17, so that the sample solution and culture medium in the culture dishes 15 are fully and evenly mixed. This can avoid problems such as overflow or uneven mixing caused by incorrect shaking force and method when manually mixing, while reducing the risk of bacterial contamination. It can also process multiple culture dishes at the same time, improving detection efficiency.

[0027] The cooling air assembly includes a water extraction pipe 27, a water-absorbing fiber evaporator 28, a water supply pipe 29, a water pump 30, a swivel blade 31, and a fan 34. The swivel blade 31 is mounted on the rotating shaft of the fan 34. The water extraction pipe 27 is connected to the water inlet of the water pump 30. One end of the water supply pipe 29 is connected to the water outlet of the water pump 30, and the other end of the water supply pipe 29 is connected to the water-absorbing fiber evaporator 28. The water-absorbing fiber evaporator 28 is installed behind the fan 34. The fan 34 drives the swivel blade 31 to rotate, causing the gas inside the shell 1 to flow. Some water is evaporated by the water-absorbing fiber evaporator 28, and the airflow blown out achieves a cooling effect inside the chamber, allowing the culture dish 15 to cool down and solidify quickly after mixing, reducing the time and space occupied by natural cooling.

[0028] Example 2

[0029] In addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0030] A sample chamber door 2 is provided on the front side of the shell 1. A hinge 3 connects the sample chamber door 2 to the shell 1. A sample chamber door handle 9 is installed on the sample chamber door 2. Supports 8 are installed at the four corners of the bottom of the shell 1 to facilitate opening and closing of the sample chamber door 2 to take out and put in the culture dish 15. The supports 8 can provide stable support for the device.

[0031] The front side of the housing 1 is also connected to the instrument status display 4, the rotation control module 5, the cold air control module 6, and the stop control module 7. The instrument status display 4, the rotation control module 5, the cold air control module 6, and the stop control module 7 are arranged side by side below the sample chamber door 2, which facilitates the control of the device by corresponding commands through each module, and can display the status inside the device in real time through the instrument status display 4.

[0032] An air outlet 10 is provided on the top of the housing 1, and an air inlet 25 is provided on the rear side of the housing 1. An air inlet filter 26 is fixedly connected to the air inlet 25, and an air outlet filter 11 is fixedly connected to the air outlet 10. The fan 34 draws air in from the air inlet 25, so that the air forms an airflow that enters the housing 1. The airflow can be filtered by the air inlet filter 26 and the air outlet filter 11 to prevent foreign objects from being brought into the housing 1. The airflow with heat can be discharged through the air outlet 10, so that the inside of the housing 1 achieves a cooling effect.

[0033] A handle 12 is fixedly connected to the upper end of the horizontal rod of the telescopic fixing rod 14, and an upper threaded anti-slip pad 13 is fixedly connected to the lower end of the horizontal rod of the telescopic fixing rod 14. A lower threaded anti-slip pad 16 is fixedly connected to the rotating table 17. The telescopic fixing rod 14 can be easily pulled upward by the handle 12, which makes it easy to place multiple stacked culture dishes 15 on the rotating table 17. The upper threaded anti-slip pad 13 and the lower threaded anti-slip pad 16 can press the culture dishes 15 tightly to prevent them from sliding.

[0034] Example 3

[0035] In addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0036] The cooling air assembly also includes a water tank 20, a water suction hose 23, and a drain pipe 24. One end of the water suction hose 23 is inserted into the water tank 20, and the other end of the water suction hose 23 is connected to the water suction pipe 27. One end of the drain pipe 24 is connected to the bottom end of the water-absorbing fiber evaporator 28, and the other end of the drain pipe 24 is connected to the water tank 20. When in use, the water pump 30 draws water from the water tank 20 into the water pump 30 through the water suction hose 23 and the water suction pipe 27, and then transports the water to the water-absorbing fiber evaporator 28 through the water delivery pipe 29, which can evaporate some of the water. The water that is not evaporated can be transported back to the water tank 20 through the drain pipe 24, thus forming a water circulation in the water tank 20.

[0037] A water tank door 22 is provided on the side of the water tank 20 near the outer wall of the housing 1. A water tank handle 21 is installed on the water tank door 22, which makes it easy to pull the water tank 20 outward through the water tank handle 21, so as to make it easy to add ice cubes or ice crystal boxes into the water tank 20.

[0038] A connecting rod 32 is provided above the water tank 20. The top end of the connecting rod 32 is fixedly connected to the top of the housing 1, and the middle part of the connecting rod 32 is fixedly connected to the fan 34. Several guide vanes 33 are provided at the air outlet of the fan 34. The installation position of the fan 34 can be fixed by the connecting rod 32, and the airflow generated when the fan 34 rotates can be guided by the guide vanes 33 so that the airflow can be directed to the petri dish 15 to improve the efficiency of cooling and solidification of the culture medium and sample liquid in the petri dish 15.

[0039] A base plate 35 is fixedly connected to the bottom of the housing 1, a water tank 20 is slidably placed on the base plate 35, and a DC brushless motor 19 is fixedly connected to the base plate 35.

[0040] Working Principle: First, pull out the sliding water tank 20 and fill it with water. Adding an appropriate amount of ice crystals or ice cubes can lower the water temperature and further enhance the cooling effect. The dotted line indicates the minimum water level in the water tank 20. Then, place a stack of culture dishes 15 to be mixed and cooled on the threaded anti-slip pads 16 of the rotating platform 17. Lift the telescopic fixing rod 14 to a suitable height and then press it down to secure the samples. Threaded anti-slip pads are provided inside the telescopic rod and on the rotating platform to secure the samples and prevent slippage and spillage. The control module will rotate the rotating platform 17 according to the set parameters. The rotating platform 17 drives the samples to rotate at a uniform speed, ensuring uniform mixing of the culture medium and sample solution. This effectively solves the problems of uneven mixing and spillage caused by improper manual shaking force and method. Next, the control module performs a cooling operation. The water pump 30 extracts ice water and transports it through the water pipe 29 to the absorbent fiber evaporator 28. The remaining water is discharged back into the water tank 20, and this cycle continues. Air is drawn in through the air inlet 25 by the fan 34, and its temperature is reduced by the water-absorbing fiber evaporator 28. The cold air is then blown out through the guide vanes 33, achieving a cooling effect inside the chamber. This cools and solidifies the culture medium and sample solution in the petri dish 15, and the air is then discharged through the air outlet 10. The cold air blown onto the sample through the guide vanes 33 allows the sample to cool and solidify rapidly, facilitating its quick transfer to the incubator and saving the time and space required for natural cooling.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for rapid mixing and cooling of a petri dish, comprising a housing (1) and a petri dish (15), characterized in that: The culture dish (15) is arranged in the shell (1); the shell (1) is also provided with a rotating assembly and a cold air assembly, and the rotating assembly and the cold air assembly are arranged in a side-by-side manner; The rotating assembly comprises a telescopic fixed rod (14), a rotating table (17), a connecting shaft (18) and a DC brushless motor (19), the rotating table (17) is fixedly connected with the rotating shaft of the DC brushless motor (19) through the connecting shaft (18), the telescopic fixed rod (14) is connected at the top of the rotating table (17), the culture dishes (15) are arranged in a stacked manner on the rotating table (17), and the culture dishes (15) are fixedly clamped between the telescopic fixed rod (14) and the rotating table (17). The cold air assembly comprises a water suction pipe (27), a water absorption fiber evaporator (28), a water delivery pipe (29), a water pump (30), a swing leaf (31) and a fan (34), the swing leaf (31) is installed on the rotating shaft of the fan (34), the water suction pipe (27) is connected with the water inlet end of the water pump (30), one end of the water delivery pipe (29) is connected with the water outlet end of the water pump (30), the other end of the water delivery pipe (29) is communicated with the water absorption fiber evaporator (28), and the installation position of the water absorption fiber evaporator (28) is located at the rear side of the fan (34).

2. The device for rapid mixing and cooling of a culture dish according to claim 1, characterized in that: The front side of the shell (1) is provided with a sample chamber door (2), a hinge (3) is connected between the sample chamber door (2) and the shell (1), a sample chamber door handle (9) is installed on the sample chamber door (2), and supports (8) are installed at the bottom corners of the shell (1).

3. The device for rapidly mixing and cooling a culture dish of claim 2, wherein: The front side of the shell (1) is also connected with an instrument state display (4), a rotating control module (5), a cold air control module (6) and a stop control module (7), and the instrument state display (4), the rotating control module (5), the cold air control module (6) and the stop control module (7) are located below the sample chamber door (2) in a side-by-side manner.

4. The device for rapid mixing and cooling of a petri dish according to claim 1, characterized in that: An air outlet (10) is formed in the top of the shell (1), an air inlet (25) is formed in the rear side of the shell (1), an air inlet dust filter net (26) is fixedly connected at the air inlet (25), and an air outlet dust filter net (11) is fixedly connected at the air outlet (10).

5. The device for rapid mixing and cooling of a petri dish according to claim 1, characterized in that: The upper end surface of the horizontal rod body of the telescopic fixed rod (14) is fixedly connected with a handle (12), and the lower end surface of the horizontal rod body of the telescopic fixed rod (14) is fixedly connected with an upper threaded anti-skid pad (13); a lower threaded anti-skid pad (16) is fixedly connected on the rotating table (17).

6. The device for rapid mixing and cooling of a petri dish according to claim 1, characterized in that: The cold air assembly further comprises a water tank (20), a water suction hose (23) and a drain pipe (24), one end of the water suction hose (23) is inserted into the water tank (20), the other end of the water suction hose (23) is communicated with the water suction pipe (27), one end of the drain pipe (24) is communicated with the bottom end of the water absorption fiber evaporator (28), and the other end of the drain pipe (24) is communicated with the water tank (20).

7. The device for rapidly mixing and cooling a culture dish of claim 6, wherein: The sink (20) is provided with a sink door (22) near one side of the outer wall of the shell (1), and a sink handle (21) is installed on the sink door (22).

8. The device for rapid mixing and cooling of a petri dish according to claim 7, characterized in that: An upper portion of the sink (20) is provided with a connecting rod (32), a top end of the connecting rod (32) is fixedly connected with a top portion of the shell (1), a rod body middle portion of the connecting rod (32) is fixedly connected with a fan (34), and an air outlet end of the fan (34) is provided with a plurality of guide vanes (33).

9. The device for rapidly mixing and cooling a culture dish of claim 8, wherein: A bottom plate (35) is fixedly connected with an inner bottom portion of the shell (1), the sink (20) is slidingly arranged on the bottom plate (35), and the direct-current brushless motor (19) is fixedly connected on the bottom plate (35).

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