Cell experiment ultra-clean workbench

Abstract

The utility model belongs to cell experiment technical field especially for a kind of cell experiment is with ultra-clean bench, including bearing platform, drainage bin is installed in the inner wall of bearing platform, the top of bearing platform is installed with shielding cover, shielding cover one side is installed with transparent baffle, the inner wall of shielding cover is installed with partition, shielding cover inside is provided with sample placement area and experimental operation area, several vertical air ducts are installed in the inside of shielding cover, and several vertical air ducts are all installed in the corresponding position of sample placement area;By the cooperation of vertical air duct and horizontal air duct and the like components, the airflow inside shielding cover always moves towards operation port area, and by the mutual cooperation between the airflow of multiple different positions, the possibility of dead angle is reduced, to avoid the pollution medium from operation port to reach sample placement area or the inside of experimental operation area, to ensure the cleanliness inside sample placement area and experimental operation area, reduce the risk of biological sample being contaminated.

Description

Technical Field

[0001] This utility model belongs to the field of cell experiment technology, specifically relating to an ultra-clean workbench for cell experiments. Background Technology

[0002] In fields such as cell biology, microbiology, and medical research, laminar flow hoods are key equipment for aseptic operations. They use fans to drive air through high-efficiency filters to form a vertical or horizontal unidirectional laminar flow, maintaining the required cleanliness level in the operating area and protecting biological samples from external environmental contamination.

[0003] In practical applications, operators inevitably need to place their arms, equipment, etc. into the work area. Such interventions will significantly disrupt the airflow field in front of the operating port, destroy the stability of laminar flow, and generate local eddies or turbulence. This will weaken the airflow barrier effect at the operating port, causing unfiltered air containing pollutants such as dust and microorganisms to be carried into the operating area, thereby increasing the risk of biological samples being contaminated. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide an ultra-clean workbench for cell experiments, which solves the problem that external contaminants can easily enter the operating area and contaminate biological samples during operation.

[0005] To achieve the above objectives, a clean bench for cell experiments includes a support platform, an inner wall of which is fitted with a drainage chamber, a shield at the top of which is fitted with a transparent baffle on one side, a partition on the inner wall of which is fitted with a divider, a sample placement area and an experimental operation area inside which are provided, a plurality of vertical air ducts installed inside which are installed at corresponding positions in the sample placement area, a horizontal air duct installed inside which is installed in the experimental operation area, and an annular air duct installed on one side of the transparent baffle.

[0006] Preferably, a filter chamber is installed at the bottom of the drainage chamber, and activated carbon is provided inside the filter chamber.

[0007] Preferably, the transparent baffle has an operating port inside, and the position of the operating port corresponds to the annular air duct.

[0008] Preferably, a slanted guide vane is installed at the bottom of each of the vertical air ducts.

[0009] Preferably, the horizontal air duct has several evenly distributed exhaust ports on the side facing the transparent baffle.

[0010] Preferably, a connecting pipe is installed at the top of the horizontal air duct, and the connecting pipe passes through the partition plate.

[0011] Preferably, a plurality of angled nozzles are installed on the side of the annular air duct away from the transparent baffle, and an air supply pipe is installed on the side wall of the annular air duct.

[0012] The utility model has the following beneficial effects:

[0013] By combining components such as vertical and horizontal air ducts, the airflow inside the shield always moves towards the operating port area. Through the mutual coordination between airflows at multiple different locations, the possibility of dead zones is reduced, preventing contaminants from entering the sample placement area or experimental operation area from the operating port. This ensures the cleanliness of the sample placement area and experimental operation area and reduces the risk of biological sample contamination. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional structural diagram of the transparent baffle in this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 This is a schematic diagram illustrating the use of this utility model.

[0018] In the diagram: 1. Support platform; 11. Drainage chamber; 12. Filter chamber; 13. Activated carbon; 2. Shielding cover; 21. Transparent baffle; 211. Operation port; 22. Divider plate; 23. Sample placement area; 24. Experimental operation area; 3. Vertical air duct; 31. Angled guide plate; 4. Horizontal air duct; 41. Exhaust port; 42. Connecting pipe; 5. Annular air duct; 51. Angled nozzle; 52. Gas delivery pipe. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0020] Example:

[0021] like Figure 1As shown in Figure 4: A clean bench for cell experiments includes a support platform 1, a drainage chamber 11 installed on the inner wall of the support platform 1, a shield 2 installed at the top of the support platform 1, a transparent baffle 21 installed on one side of the shield 2, a partition plate 22 installed on the inner wall of the shield 2, a sample placement area 23 and an experimental operation area 24 set inside the shield 2, a number of vertical air ducts 3 installed inside the shield 2, all of which are installed at the corresponding positions of the sample placement area 23, a horizontal air duct 4 installed inside the shield 2, the horizontal air duct 4 installed inside the experimental operation area 24, and an annular air duct 5 installed on one side of the transparent baffle 21.

[0022] The support platform 1 supports all components, providing an operating platform for personnel conducting cell experiments. A shield 2 is installed at the top of the support platform 1, protecting the top area of ​​the platform. A transparent baffle 21 is installed on one side of the shield 2. The shield 2 and the transparent baffle 21 cover the top area of ​​the platform 1 internally, allowing medical personnel to operate within the shield 2 and the transparent baffle 21 to prevent external contaminants from contaminating biological samples. A partition 22 is installed inside the shield 2, dividing the inner space into a sample placement area 23 and an experimental operation area 24. The sample placement area 23 is located above the partition 22, allowing researchers to place clean samples within the sample placement area. Biological samples requiring high purity are placed above the separator 22, positioning them inside the sample placement area 23 and away from the operator's arm or equipment entry point. The experimental operation area 24 is used for cell experiments. The shield 2 contains several vertical air ducts 3, positioned at the top of the sample placement area 23. A fan and filter are installed on the inner top of the shield 2. The fan's output is connected to the vertical air ducts 3, allowing for a continuous downward flow of clean air. This airflow enters the shield from the corresponding position in the sample placement area 23, directed towards the operator's arm or equipment. The airflow inside the shield 2 always moves from the clean area towards the area prone to contamination, thus reducing the possibility of contaminants entering from the outside and rising upwards. This keeps the sample placement area 23 clean. The airflow output downwards from the vertical air duct 3 eventually enters the drainage chamber 11 and exits from the inside of the shield 2. Since there are several vertical air ducts 3 arranged sequentially, they form laminar flow, further reducing the upward movement of contaminants into the sample placement area 23, thus ensuring the cleanliness of the biological sample location. The horizontal air duct 4 installed on the inner wall of the shield 2 continuously outputs horizontal airflow. The horizontal air duct 4 is installed inside the experimental operation area 24. The airflow will blow towards the transparent baffle 21, causing the airflow output from the horizontal air duct 4 to blow towards the position where personnel's arms or equipment enter. This prevents personnel from blocking the airflow from the vertical air duct 3 during operation, thus preventing contaminants from reaching the experimental operation area 24 and ensuring the cleanliness of the experimental operation area 24. The airflow output from the horizontal air duct 4 will be guided into the drainage chamber 11 through the airflow from the vertical air duct 3 and finally discharged through the drainage chamber 11. The annular air duct 5 set on the outside of the transparent baffle 21 will continuously output airflow away from the transparent baffle 21, thereby forming an air curtain and reducing the possibility of external contaminants entering the inner side of the shield 2 when personnel's arms or equipment enter the transparent baffle 21.

[0023] A filter chamber 12 is installed at the bottom of the flow chamber 11, and activated carbon 13 is installed inside the filter chamber 12. The filter chamber 12 installed at the bottom of the flow chamber 11 is used to support the activated carbon 13. The airflow output from the vertical air duct 3 and the horizontal air duct 4 enters the flow chamber 11 and then enters the filter chamber 12 and comes into contact with the activated carbon 13. The activated carbon 13 can filter the pollutant in the airflow through its internal porous structure. The filtered airflow will be discharged through the holes opened at the bottom of the filter chamber 12. Since the airflow is continuously discharged through the holes at the bottom of the filter chamber 12, the possibility of external pollutants moving upward through the holes at the bottom of the filter chamber 12 is reduced. Even if the external airflow carries pollutants upward through the holes at the bottom of the filter chamber 12, the airflow will first come into contact with the activated carbon 13, and the activated carbon 13 will filter the pollutants, thereby avoiding pollution to the inside of the shield 2.

[0024] An operating port 211 is provided inside the transparent baffle 21, and the position of the operating port 211 corresponds to that of the annular air duct 5. The operating port 211 inside the transparent baffle 21 provides space for personnel's arms or equipment to enter the shield 2. When no operation is required, the experimenter can seal the operating port 211 with a plug of the same size and shape to prevent external pollutants from entering the transparent baffle 21. The position of the operating port 211 corresponds to that of the annular air duct 5, so that when personnel's arms or equipment enter the inside of the shield 2, the airflow output from the annular air duct 5 will form an air curtain to reduce the possibility of external pollutants entering the inside of the shield 2.

[0025] Several vertical air ducts 3 are equipped with inclined guide plates 31 at their bottom ends. The inclined guide plates 31 are set at an angle towards the flow chamber 11, so that the airflow output from the vertical air ducts 3 will be guided by the inclined guide plates 31 and move towards the flow chamber 11, thereby forming multiple layers of downward inclined airflow inside the shield 2, preventing the contaminant from floating upward and ensuring the cleanliness of the sample placement area 23.

[0026] Several evenly distributed exhaust ports 41 are provided on the side of the horizontal air duct 4 facing the transparent baffle 21. The exhaust ports 41 on the side of the horizontal air duct 4 facing the transparent baffle 21 are used to exhaust the airflow inside the horizontal air duct 4. Since the exhaust ports 41 face the transparent baffle 21, when the airflow inside the horizontal air duct 4 is discharged through the exhaust ports 41, the horizontally moving airflow will move towards the position where personnel arms or equipment enter, that is, the position corresponding to the operating port 211. This avoids the contaminating medium moving towards the experimental operation area 24 when personnel arms or equipment enter and block the output airflow of the vertical air duct 3, thereby ensuring the cleanliness of the experimental operation area 24.

[0027] A connecting pipe 42 is installed at the top of the horizontal air duct 4, and the connecting pipe 42 passes through the partition plate 22. The connecting pipe 42 installed at the top of the horizontal air duct 4 is connected to the output end of the fan installed inside the shield 2, so that clean airflow can be continuously input into the connecting pipe 42 and transported into the horizontal air duct 4 through the connecting pipe 42, and finally discharged through the exhaust port 41 to form a horizontal airflow. This allows the horizontal airflow output from the horizontal air duct 4 to continuously move towards the transparent baffle 21 when a person's arm obstructs the airflow output from the vertical air duct 3, preventing the contaminated medium from moving towards the sample placement area 23 or the experimental operation area 24, thereby reducing purification dead zones and reducing the risk of biological sample contamination.

[0028] Several angled nozzles 51 are installed on the side of the annular air duct 5 away from the transparent baffle 21, and an air supply pipe 52 is installed on the side wall of the annular air duct 5. The air supply pipe 52 installed on the side wall of the annular air duct 5 is connected to the output end of the fan installed inside the shield 2, so that clean airflow can be delivered to the annular air duct 5 through the air supply pipe 52. Several annularly distributed angled nozzles 51 are installed on the side of the annular air duct 5 away from the transparent baffle 21, and the angled nozzles 51 have a certain tilt angle, so that when a person's arm or equipment is inserted into the transparent baffle 21, when the airflow inside the annular air duct 5 is discharged through the angled nozzles 51, an annular air curtain will be formed on the outside of the person's arm or equipment, thereby reducing the possibility of polluting media entering the inside of the shield 2 through the operation port 211.

[0029] The working principle of this invention is as follows: During use, the experimenter can activate the fan installed inside the shield 2. The airflow generated by the fan, after being purified by the filter assembly, forms a clean airflow that enters the interior of the vertical air duct 3, horizontal air duct 4, and annular air duct 5. During operation, the operator's arm or equipment needs to enter the inside of the shield 2 through the operating port 211. The airflow inside the annular air duct 5 is discharged through the inclined nozzle 51, thus forming an annular air curtain outside the operator's arm or equipment, thereby reducing the possibility of contaminants entering the inside of the shield 2. The experimenter needs to place biological samples with high cleanliness requirements above the partition plate 22 for preservation and conduct cell experiments in the experimental operation area 24. Because the vertical air duct 3 continuously outputs airflow, and the airflow passes through the inclined... The guide plate 31 tilts towards the drainage chamber 11, so that the contaminated medium entering the inner side of the shield 2 through the operation port 211 will first come into contact with the clean airflow output from the vertical air duct 3. The clean airflow output from the vertical air duct 3 will drive the contaminated medium towards the drainage chamber 11, thereby preventing the contaminated medium from moving towards the sample placement area 23 or the experimental operation area 24, thus ensuring the cleanliness of the sample placement area 23 and the experimental operation area 24. When personnel arms or equipment obstruct the airflow output from the vertical air duct 3, the horizontal airflow output from the horizontal air duct 4 can still prevent the contaminated medium from moving towards the sample placement area 23 or the experimental operation area 24, thereby ensuring the cleanliness of the sample placement area 23 and the experimental operation area 24 and reducing the risk of biological sample contamination.

[0030] It should be noted that, in this document, 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 process, method, article, or apparatus.

[0031] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A clean bench for cell experiments, comprising a support platform (1), characterized in that: The inner wall of the support platform (1) is equipped with a drainage chamber (11), the top of the support platform (1) is equipped with a shield (2), a transparent baffle (21) is installed on one side of the shield (2), a partition plate (22) is installed on the inner wall of the shield (2), a sample placement area (23) and an experimental operation area (24) are set inside the shield (2), a number of vertical air ducts (3) are installed inside the shield (2), and the number of vertical air ducts (3) are all installed at the corresponding positions of the sample placement area (23). A horizontal air duct (4) is installed inside the shield (2), and the horizontal air duct (4) is installed inside the experimental operation area (24). An annular air duct (5) is installed on one side of the transparent baffle (21).

2. The ultra-clean workbench for cell experiments according to claim 1, characterized in that: The bottom of the drainage chamber (11) is equipped with a filter chamber (12), and activated carbon (13) is installed inside the filter chamber (12).

3. The ultra-clean workbench for cell experiments according to claim 1, characterized in that: The transparent baffle (21) has an operating port (211) inside, and the position of the operating port (211) corresponds to the annular air duct (5).

4. The ultra-clean workbench for cell experiments according to claim 1, characterized in that: Several of the vertical air ducts (3) are equipped with inclined guide vanes (31) at their bottom ends.

5. The ultra-clean workbench for cell experiments according to claim 1, characterized in that: The horizontal air duct (4) has several evenly distributed exhaust ports (41) on the side facing the transparent baffle (21).

6. The ultra-clean workbench for cell experiments according to claim 1, characterized in that: A connecting pipe (42) is installed at the top of the horizontal air duct (4), and the connecting pipe (42) passes through the partition plate (22).

7. The ultra-clean workbench for cell experiments according to claim 1, characterized in that: A number of angled nozzles (51) are installed on the side of the annular air duct (5) away from the transparent baffle (21), and an air supply pipe (52) is installed on the side wall of the annular air duct (5).

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