Multifunctional biological safety cabinet

Abstract

The utility model relates to the technical field of experiment cabinets, in particular to a multifunctional biological safety cabinet which comprises a biological experiment bin and an equipment cabinet installed at the top of the biological experiment bin, stand columns are installed at the four top corners of the bottom of the biological experiment bin, and a negative pressure fan is installed on the back of the equipment cabinet. According to the utility model, the top edge of the switch panel is connected with the transparent protective cover through the hinge, so that the switch panel can be effectively protected from being polluted and damaged in an experiment process on the premise of not influencing observation and operation of experimenters; under the action of the negative pressure fan, harmful suspended particles, aerosol and the like generated in the experiment process can be discharged in time, and a safe operation environment is provided for experimenters; an ultraviolet sterilization lamp tube can effectively sterilize and disinfect the interior of the biological experiment bin before and after an experiment, so that the cleanliness of an experiment environment is ensured; and the illuminating lamp tube provides sufficient illumination for experimental operation, so that an experimenter can observe and operate conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory cabinets, in particular to a multifunctional biological safety cabinet. Background Art

[0002] In the fields of life sciences, healthcare, biopharmaceuticals, etc., biological safety cabinets, as an important laboratory equipment, provide a safe and reliable operating environment for handling infectious experimental materials. With the continuous advancement of science and technology and the increasing demand for experiments, traditional biological safety cabinets have gradually exposed some shortcomings in terms of function and performance. Existing biological safety cabinets are not ideal in terms of exhausting harmful suspended particles and aerosols, which may cause potential harm to experimental personnel and the surrounding environment. The switch panels of traditional biological safety cabinets are usually directly exposed to the experimental environment and are easily contaminated by liquid splashes, aerosols, etc. during the experiment, affecting the normal use and life of the equipment. Utility Model Content

[0003] The purpose of the present invention is to provide a multifunctional biosafety cabinet to solve the problems in the above background technology that the traditional biosafety cabinet has poor ventilation and purification effects and the switch panel is easily contaminated.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A multifunctional biosafety cabinet, comprising a biological experiment chamber and an equipment cabinet installed on top of the biological experiment chamber, wherein columns are installed at the four top corners of the bottom of the biological experiment chamber, and a negative pressure fan is installed on the back of the equipment cabinet;

[0006] A biparting door is provided on one side of the biological experiment chamber, and switch panels are symmetrically provided on the inner walls on both sides of the biological experiment chamber. A transparent protective cover is connected to the top edge of the switch panel via a hinge. Negative pressure through holes are provided on the inner walls and bottom surface of both sides of the biological experiment chamber and are connected to the negative pressure fan.

[0007] Several groups of parallel ultraviolet sterilization lamps and lighting lamps are installed in the equipment cabinet.

[0008] Preferably, a hollow area for connecting the negative pressure through hole with the negative pressure fan is provided in the inner wall of the biological experiment chamber and the equipment cabinet.

[0009] Preferably, a ventilation hole is provided at the top center of the equipment cabinet, and a blower is installed in the ventilation hole.

[0010] Preferably, the equipment cabinet is externally connected to a power supply, and the switch panel is provided with switches and power sockets for controlling the negative pressure fan, blower, ultraviolet sterilization lamp and lighting lamp.

[0011] Preferably, the ventilation holes and the air outlet of the negative pressure fan are both equipped with ULPA filters.

[0012] Preferably, universal wheels are installed at the bottom of each group of columns.

[0013] Preferably, each set of the universal wheels is equipped with a fixed brake to prevent the vehicle from slipping.

[0014] Compared with the existing technology, the beneficial effects of the present invention are:

[0015] 1. This multifunctional biological safety cabinet features a biparting door on one side of the biological experiment chamber, which facilitates operator operation and can be quickly closed when needed to ensure a closed experimental environment. Symmetrically arranged switch panels on the inner walls of the chamber provide convenient control for experimental operations, allowing operators to adjust equipment status at any time. A transparent protective cover hinged to the top edge of the switch panel effectively protects the switch panel from contamination and damage during the experiment without affecting the operator's observation and operation. Negative pressure holes connected to the negative pressure fan on the inner walls and bottom of the chamber are provided. Under the action of the negative pressure fan, harmful suspended particulates and aerosols generated during the experiment can be promptly discharged, providing a safe operating environment for the operator and preventing contamination of the surrounding environment by harmful substances. Several sets of parallel ultraviolet germicidal lamps and lighting lamps are installed in the equipment cabinet. The ultraviolet germicidal lamps can effectively sterilize and disinfect the interior of the biological experiment chamber before and after experiments, ensuring the cleanliness of the experimental environment. The lighting lamps provide sufficient lighting for experimental operations, facilitating the operator's observation and operation.

[0016] 2. This multifunctional biosafety cabinet features a ventilation hole at the center of the top of the equipment cabinet. A blower is installed inside the ventilation hole to accelerate air circulation, promoting uniform distribution of temperature and humidity within the laboratory chamber, and rapidly dispersing and discharging hazardous substances. This is particularly important for experiments requiring strict control of the experimental environment.

[0017] 3. In this multifunctional biological safety cabinet, the ventilation holes and the air outlets of the negative pressure fan are installed with ULPA filters. The ULPA filters have extremely high filtration efficiency and can effectively prevent tiny particles, bacteria, viruses and other harmful substances in the air from entering the experimental chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they provide further detailed explanations, but do not constitute a limitation to the present invention.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a structural diagram of the utility model with the door opened;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the biological experiment chamber and equipment cabinet of the present utility model;

[0022] 10. Biological experiment chamber; 11. Chamber door; 12. Switch panel; 13. Transparent protective cover; 14. Negative pressure through hole; 15. Hollow area;

[0023] 20. Equipment cabinet; 21. Ventilation holes; 22. Blower; 23. ULPA filter; 24. UV germicidal lamp; 25. Lighting lamp;

[0024] 30. Column; 31. Universal wheel;

[0025] 40. Negative pressure fan. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the present invention and the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "vertical", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] Multifunctional biological safety cabinets, such as Figure 1-Figure 3As shown, it includes a biological experiment chamber 10 and an equipment cabinet 20 installed on the top of the biological experiment chamber 10. Columns 30 are installed at the four top corners of the bottom of the biological experiment chamber 10, and a negative pressure fan 40 is installed on the back of the equipment cabinet 20; a double-leaf door 11 is provided on one side of the biological experiment chamber 10, and switch panels 12 are symmetrically provided on the inner walls on both sides of the biological experiment chamber 10. The top edge of the switch panel 12 is connected to a transparent protective cover 13 by a hinge, and negative pressure through holes 14 connected to the negative pressure fan 40 are provided on the inner walls and bottom surfaces on both sides of the biological experiment chamber 10; several groups of parallel ultraviolet sterilization lamps 24 and lighting lamps 25 are installed in the equipment cabinet 20. The double-leaf door 11 provided on one side of the biological experiment chamber 10 is convenient for experimenters to operate, and can be quickly closed when needed to ensure the closedness of the experimental environment; the switch panels 12 symmetrically provided on the inner walls on both sides of the biological experiment chamber 10 provide convenient experimental operations. The control mode makes it convenient for the experimenter to adjust the equipment status at any time; the transparent protective cover 13 connected by a hinge to the top edge of the switch panel 12 can effectively protect the switch panel 12 from contamination and damage during the experiment without affecting the observation and operation of the experimenter; the negative pressure through holes 14 connected to the negative pressure fan 40 on both sides of the inner wall and the bottom surface of the biological experiment chamber 10 can discharge harmful suspended particles, aerosols, etc. generated during the experiment in time under the action of the negative pressure fan 40, providing a safe operating environment for the experimenter, while also avoiding the pollution of the surrounding environment by harmful substances; several groups of parallel ultraviolet sterilization lamps 24 and lighting lamps 25 are installed in the equipment cabinet 20. The ultraviolet sterilization lamps 24 can effectively sterilize and disinfect the interior of the biological experiment chamber 10 before and after the experiment to ensure the cleanliness of the experimental environment; the lighting lamps 25 provide sufficient lighting for the experimental operation, which is convenient for the experimenter to observe and operate.

[0029] Furthermore, a hollow area 15 is provided in the inner wall of the biological experiment chamber 10 and the equipment cabinet 20 for connecting the negative pressure through hole 14 with the negative pressure fan 40. By providing the hollow area 15, an effective connection between the negative pressure through hole 14 and the negative pressure fan 40 is ensured to form a smooth airflow channel.

[0030] Specifically, a ventilation hole 21 is provided at the center of the top of the equipment cabinet 20. A blower 22 is installed within the ventilation hole 21. The blower accelerates air circulation, promoting uniform distribution of temperature and humidity within the experimental chamber, and rapidly dispersing and discharging harmful substances. This is particularly important for experiments that require strict control of the experimental environment.

[0031] Among them, the equipment cabinet 20 is connected to an external power supply, and the switch panel 12 is provided with switches and power jacks for controlling the negative pressure fan 40, blower 22, ultraviolet sterilization lamp 24 and lighting lamp 25. The control switch integrated on the switch panel 12 allows the experimenter to easily control the switch status of each device.

[0032] It is worth noting that the ventilation holes 21 and the air outlet of the negative pressure fan 40 are both installed with ULPA filters 23. The ULPA filters 23 have extremely high filtering efficiency and can effectively prevent harmful substances such as tiny particles, bacteria, viruses, etc. in the air from entering the experimental chamber.

[0033] In addition, universal wheels 31 are installed at the bottom of each set of columns 30, and each set of universal wheels 31 is equipped with fixed brakes to prevent slipping. The universal wheels 31 make the entire biosafety cabinet have good mobility and flexibility. The setting of the fixed brakes ensures that the safety cabinet can be firmly fixed to the ground when it does not need to be moved, preventing it from tipping over or damage due to accidental collisions or vibrations.

[0034] The working principle of this multifunctional biological safety cabinet:

[0035] 1. Preparation before the experiment

[0036] Check the overall condition of the biosafety cabinet to ensure that the columns 30 at the bottom of the biological experiment chamber 10 are stably supported without shaking or damage;

[0037] Open the equipment cabinet 20 and check whether the UV sterilizing lamp 24 and the lighting lamp 25 are working properly. If damaged, replace them in time.

[0038] 2. Turn on the device

[0039] Open the door 11 on one side of the biological experiment chamber 10 and place the items needed for the experiment into the biological experiment chamber 10;

[0040] Close the door 11 to ensure a good seal;

[0041] Turn on the ultraviolet germicidal lamp 24 in the equipment cabinet 20 to sterilize and disinfect the interior of the biological experiment chamber 10. The disinfection time is determined according to the actual situation.

[0042] 3. Experimental Operation

[0043] After the disinfection is completed, turn off the ultraviolet germicidal lamp 24 and turn on the lighting lamp 25 to provide sufficient lighting for the experimental operation;

[0044] The equipment and instruments required for the experiment are turned on through the switch panels 12 on both sides of the inner wall of the biological experiment chamber 10;

[0045] When performing the experiment, pay attention to the experimental process. If necessary, the transparent protective cover 13 on the top edge of the switch panel 12 can be used to protect the switch panel 12 to prevent liquid from splashing or contaminating the switch panel 12 during the experiment.

[0046] During the experiment, the negative pressure holes 14 on the inner walls and bottom of the biological experiment chamber 10 work in conjunction with the negative pressure fan 40 on the back to promptly discharge harmful suspended particles and aerosols generated during the experiment, ensuring the safety of the experimental environment.

[0047] 4. After the experiment

[0048] Turn off the experimental equipment and instruments, and turn off the lighting tube 25 through the switch panel 12;

[0049] Turn on the ultraviolet germicidal lamp 24 to sterilize the interior of the biological experiment chamber 10 again;

[0050] After the disinfection is completed, turn off the ultraviolet germicidal lamp 24, open the door 11, and take out the experimental items and waste;

[0051] Clean and maintain the biosafety cabinet to ensure that the equipment is in good condition when it is used next time.

[0052] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional biological safety cabinet, comprising a biological experiment chamber (10) and an equipment cabinet (20) mounted on top of the biological experiment chamber (10), characterized in that: The four corners of the bottom of the biological experiment chamber (10) are all equipped with columns (30), and the back of the equipment cabinet (20) is equipped with a negative pressure fan (40); A biparting door (11) is provided on one side of the biological experiment chamber (10), switch panels (12) are symmetrically provided on the inner walls on both sides of the biological experiment chamber (10), and a transparent protective cover (13) is connected to the top edge of the switch panel (12) via a hinge. Negative pressure through holes (14) connected to the negative pressure fan (40) are provided on the inner walls and bottom surface on both sides of the biological experiment chamber (10); Several groups of ultraviolet sterilization lamps (24) and lighting lamps (25) arranged in parallel are installed in the equipment cabinet (20).

2. The multifunctional biosafety cabinet according to claim 1, characterized in that: A hollow area (15) for connecting the negative pressure through hole (14) with the negative pressure fan (40) is provided in the inner wall of the biological experiment chamber (10) and the equipment cabinet (20).

3. The multifunctional biosafety cabinet according to claim 1, characterized in that: A ventilation hole (21) is provided at the center of the top of the equipment cabinet (20), and a blower (22) is installed in the ventilation hole (21).

4. The multifunctional biosafety cabinet according to claim 3, characterized in that: The equipment cabinet (20) is externally connected to a power source, and the switch panel (12) is provided with switches and power sockets for controlling the negative pressure fan (40), the blower (22), the ultraviolet sterilization lamp (24) and the lighting lamp (25).

5. The multifunctional biosafety cabinet according to claim 3, characterized in that: The ventilation hole (21) and the air outlet of the negative pressure fan (40) are both installed with a ULPA filter (23).

6. The multifunctional biosafety cabinet according to claim 1, characterized in that: Universal wheels (31) are installed at the bottom of each group of columns (30).

7. The multifunctional biosafety cabinet according to claim 6, characterized in that: Each set of universal wheels (31) is equipped with a fixed brake to prevent the vehicle from slipping.

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