Biological safety cabinet with leak-proof sealing structure

Abstract

The utility model provides a biosafety cabinet with leakproof sealing structure, including cabinet body, sealing plate, adjusting component, placing table and cabinet door, cabinet body front side is equipped with second sealing frame, cabinet body inner bottom surface is symmetrically equipped with rectangular strip, sealing plate front side and sealing plate rear side are respectively equipped with second magnetic plate, sealing plate lower part is equipped with gas filter plate, and the cabinet door is equipped with the gas filter plate. A first sealing frame is mounted on the rear side of the cabinet door; a driving motor is mounted at the front end of the right side of the rectangular plate; a motor is mounted above the side plate; and a screw rod is mounted at the shaft part of the motor. The air filter device is reasonable in structure and good in practicability, the air filter plate can be conveniently and quickly taken out and cleaned, convenience is improved when the cabinet door is opened and closed, the air filter device is faster and more convenient, and time is saved.

Description

Technical Field

[0001] This utility model is a biosafety cabinet with a leak-proof sealing structure, belonging to the field of biosafety technology. Background Technology

[0002] Biosafety cabinets are box-shaped safety devices that prevent the release of hazardous or unknown biological particles during experimental operations. They are widely used in fields such as microbiology, biomedicine, genetic engineering, and biological products. However, most current biosafety cabinets are operated with the lid open, resulting in poor sealing and making them prone to contamination of test samples and diffusion of test materials during use, which is very unsafe.

[0003] Patent No. CN217248995U describes a biosafety cabinet with good sealing performance. By setting the workbench to a sliding opening method and using a multi-stage sealing and filtration structure, the internal sealing and safety of the cabinet are improved, thus enhancing the sealing performance of the biosafety cabinet and reducing the entry of harmful substances such as external bacteria. It also ensures that the test samples inside are in a completely closed space during experiments, which is safer. However, the process of opening and closing the sealing door of this device is complicated, time-consuming, and the gas filter plate is not easy to remove quickly, making cleaning inconvenient. There is an urgent need for a biosafety cabinet with a leak-proof sealing structure to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a biosafety cabinet with a leak-proof sealing structure to solve the problems mentioned in the background. This invention has a reasonable structure, good practicality, facilitates the quick removal of the gas filter plate for easy cleaning, and improves the convenience of opening and closing the cabinet door, making it faster, more convenient, and time-saving.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A biosafety cabinet with a leak-proof sealing structure includes a cabinet body, a sealing plate, an adjustment assembly, a placement platform, and a cabinet door. A second sealing frame is installed on the front side of the cabinet body. Rectangular strips are symmetrically installed on the bottom surface of the cabinet body. Second magnetic plates are installed on the front and rear sides of the sealing plate. A gas filter plate is installed below the sealing plate. U-shaped shells are symmetrically installed below the placement platform. A first sealing frame is installed on the rear side of the cabinet door. The adjustment assembly includes a side plate, a rack, and a rectangular plate. A drive motor is installed at the front right side of the rectangular plate. A motor is installed above the side plate. A lead screw is installed on the shaft of the motor. A gear is fixedly connected to the shaft of the drive motor. A docking shell is installed on the right side of the rectangular plate. An adjustment block is installed on the left side of the rectangular plate. The adjustment block is screwed to the lead screw. An L-shaped plate is installed at the front end of the rack. A protrusion on the left side of the rack is slidably connected to the docking shell.

[0006] Furthermore, a through slot is provided at the upper rear end of the cabinet, and a first magnetic plate is installed at the upper rear end of the cabinet. The magnetism of the two first magnetic plates is opposite to that of the two second magnetic plates.

[0007] Furthermore, U-shaped strips are installed on the left and right sides of the cabinet, and a double-through pipe is installed through the top of the cabinet, with mist nozzles installed at the two output ends of the double-through pipe.

[0008] Furthermore, a transparent panel is provided on the sloping front side of the cabinet, and an extension tube is connected to the rear side of the transparent panel. An operating glove is fixed to the end of the extension tube, and a sealing plug is inserted inside the extension tube.

[0009] Furthermore, the adjustment assembly is provided in two parts, with the two adjustment blocks slidably connected to the two U-shaped strips respectively, the two side plates respectively installed on the lower ends of the left and right sides of the cabinet, and the two L-shaped plates respectively connected to the cabinet doors.

[0010] Furthermore, two through pipes are symmetrically installed on the rear side of the cabinet, and the two through pipes are connected to the inside of the cabinet. Control valves are respectively connected to the top of the two through pipes.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a biosafety cabinet with a leak-proof sealing structure. Because this utility model adds a motor, drive motor, rack, gear, first magnetic plate, second magnetic plate, adjusting block and lead screw, our design improvements and actual use show that this device has a reasonable structure, good practicality, facilitates quick removal of the gas filter plate for easy cleaning, and improves the convenience of opening and closing the cabinet door, making it faster and more convenient, saving time. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a biosafety cabinet with a leak-proof sealing structure according to the present invention;

[0014] Figure 2 This is a three-dimensional cross-sectional view of a biosafety cabinet with a leak-proof sealing structure according to the present invention.

[0015] Figure 3 This is a three-dimensional schematic diagram of the internal structure of a biosafety cabinet with a leak-proof sealing structure according to the present invention.

[0016] Figure 4 This is a three-dimensional schematic diagram of the gas filter plate structure of a biosafety cabinet with a leak-proof sealing structure according to the present invention.

[0017] Figure 5 This is a three-dimensional schematic diagram of the adjustment component structure of a biosafety cabinet with a leak-proof sealing structure according to the present invention;

[0018] Figure 6 This is a three-dimensional structural diagram of the adjustment component of a biosafety cabinet with a leak-proof sealing structure according to this utility model from another angle.

[0019] In the diagram: 1-Cabinet body, 2-Cabinet door, 3-Adjusting component, 4-First sealing frame, 5-Transparent plate, 6-Double pipe, 7-First magnetic plate, 8-Sealing plate, 9-Second magnetic plate, 10-Control valve, 11-Pass pipe, 12-Second sealing frame, 13-U-shaped strip, 14-Placement platform, 15-U-shaped shell, 16-Rectangular strip, 17-Pass groove, 18-Gas filter plate, 19-Sealing plug, 20-Extension tube, 21-Operating gloves, 22-Mist nozzle, 30-Side plate, 31-Motor, 32-Gear, 33-Drive motor, 34-Rectangular plate, 35-L-shaped plate, 36-Rack and pinion, 37-Lead screw, 38-Adjusting block, 39-Connecting shell. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figures 1-6 This utility model provides a technical solution: a biosafety cabinet with a leak-proof sealing structure, including a cabinet body 1, a sealing plate 8, an adjustment assembly 3, a placement platform 14, and a cabinet door 2. A second sealing frame 12 is installed on the front side of the cabinet body 1, and rectangular strips 16 are symmetrically installed on the inner bottom surface of the cabinet body 1. Second magnetic plates 9 are installed on the front and rear sides of the sealing plate 8, and a gas filter plate 18 is installed below the sealing plate 8. U-shaped shells 15 are symmetrically installed below the placement platform 14. A first sealing frame 4 is installed on the rear side of the cabinet door 2. The adjustment assembly 3 includes a side plate 30, a rack 36, and a rectangular plate 34. The rectangular plate 34 has a right front end... A drive motor 33 is installed, a motor 31 is installed above the side plate 30, a lead screw 37 is installed on the shaft of the motor 31, a gear 32 is fixedly connected to the shaft of the drive motor 33, a docking shell 39 is installed on the right side of the rectangular plate 34, an adjusting block 38 is installed on the left side of the rectangular plate 34, the adjusting block 38 is screwed to the lead screw 37, an L-shaped plate 35 is installed at the front end of the rack 36, and the protrusion on the left side of the rack 36 is slidably connected to the docking shell 39. This design solves the problems of the original device having many steps in the process of opening and closing the sealing door, which is troublesome and time-consuming, and the gas filter plate is not easy to remove quickly, resulting in inconvenient cleaning.

[0022] As the first embodiment of this utility model: A through groove 17 is provided at the upper rear end of the cabinet body 1, and a first magnetic plate 7 is installed at the upper rear end of the cabinet body 1. The magnetism of the two first magnetic plates 7 is opposite to that of the two second magnetic plates 9. The through groove 17 facilitates the insertion of the gas filter plate 18, and the first magnetic plate 7 and the second magnetic plate 9 improve the stability of the sealing plate 8. U-shaped strips 13 are installed on the left and right sides of the cabinet body 1, and a double-through pipe 6 is installed through the top of the cabinet body 1. A mist nozzle 22 is installed at each of the two output ends of the double-through pipe 6. The cooperation between the double-through pipe 6 and the mist nozzle 22 facilitates the spraying of disinfectant. A transparent plate 5 is provided on the inclined surface of the front side of the cabinet body 1. An extension tube 20 is connected to the rear side of the transparent plate 5. An operating glove 21 is fixed to the end of the extension tube 20, and a sealing plug 19 is inserted into the inside of the extension tube 20. The operating glove 21 facilitates the operation of the inside of the cabinet body 1. Two adjustment components 3 are provided. Two adjustment blocks 38 are slidably connected to two U-shaped bars 13 respectively. Two side plates 30 are installed on the lower ends of the left and right sides of the cabinet 1 respectively. Two L-shaped plates 35 are connected to the cabinet door 2 respectively. Two through pipes 11 are symmetrically installed on the rear side of the cabinet 1. The two through pipes 11 are connected to the inside of the cabinet 1. Control valves 10 are respectively connected to the top of the two through pipes 11. The through pipes 11 facilitate the exhaust or gas supply work inside the cabinet 1.

[0023] As a second embodiment of this utility model: In use, first start the two drive motors 33, which drive the two racks 36 to move synchronously, thereby driving the two L-shaped plates 35 to move, thus driving the cabinet door 2 to move. Then start the two motors 31, which drive the two lead screws 37 to rotate, thereby driving the two adjusting blocks 38 to move upward along the U-shaped strip 13, thereby driving the two rectangular plates 34 to move upward, thus driving the cabinet door 2 to move upward. Then place the test items on the placement platform 14. Next, slide the two U-shaped shells 15 below the placement platform 14 to the two rectangular strips 16 to place the placement platform 14 inside the cabinet 1. Then insert the gas filter plate 18 into the through groove 17, so that the sealing plate 8 closes the through groove 17. At this time, the two second magnets Plate 9 is magnetically attracted to the two first magnetic plates 7. Then, the cabinet door 2 is reset so that the second sealing frame 12 abuts against the first sealing frame 4. Then, one of the control valves 10 is opened and connected to the pipe 11 through an external air extraction device to expel the gas inside the cabinet 1. Then, control valve 10 is closed, and the other control valve 10 is opened and connected to the pipe 11 through an external air supply device to expel the required gas into the cabinet 1. The dual-pipe 6 can be connected to external disinfectant to disinfect the inside of the cabinet 1. When introducing gas, the input end of the dual-pipe 6 can be blocked with an external sealing column. Then, the sealing plug 19 is pulled out. The operator can operate the test specimens on the placement table 14 through the operating gloves 21. The transparent plate 5 can observe the inside of the cabinet 1.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] 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 biosafety cabinet with a leak-proof sealing structure, comprising a cabinet body (1), a sealing plate (8), an adjustment assembly (3), a placement platform (14), and a cabinet door (2), characterized in that: A second sealing frame (12) is installed on the front side of the cabinet (1), a rectangular strip (16) is symmetrically installed on the bottom inner surface of the cabinet (1), a second magnetic plate (9) is installed on the front and rear sides of the sealing plate (8), a gas filter plate (18) is installed below the sealing plate (8), a U-shaped shell (15) is symmetrically installed below the placement platform (14), and a first sealing frame (4) is installed on the rear side of the cabinet door (2). The adjustment assembly (3) includes a side plate (30), a rack (36), and a rectangular plate (34). A drive motor (33) is installed on the front right side of the rectangular plate (34). A motor (31) is installed above the side plate (30). A lead screw (37) is installed on the shaft of the motor (31). A gear (32) is fixedly connected to the shaft of the drive motor (33). A docking shell (39) is installed on the right side of the rectangular plate (34). An adjustment block (38) is installed on the left side of the rectangular plate (34). The adjustment block (38) is screwed to the lead screw (37). An L-shaped plate (35) is installed at the front end of the rack (36). The protrusion on the left side of the rack (36) is slidably connected to the docking shell (39).

2. A biosafety cabinet with a leak-proof sealing structure according to claim 1, characterized in that: A through slot (17) is provided at the upper rear end of the cabinet (1), and a first magnetic plate (7) is installed at the upper rear end of the cabinet (1). The magnetism of the two first magnetic plates (7) is opposite to that of the two second magnetic plates (9).

3. A biosafety cabinet with a leak-proof sealing structure according to claim 1, characterized in that: The cabinet (1) is equipped with U-shaped strips (13) on the left and right sides respectively, and a double pipe (6) is installed through the top of the cabinet (1). The two output ends of the double pipe (6) are respectively equipped with mist nozzles (22).

4. A biosafety cabinet with a leak-proof sealing structure according to claim 1, characterized in that: The cabinet (1) has a transparent plate (5) on the front slope. An extension tube (20) is connected to the rear side of the transparent plate (5). An operating glove (21) is fixed to the end of the extension tube (20). A sealing plug (19) is inserted inside the extension tube (20).

5. A biosafety cabinet with a leak-proof sealing structure according to claim 1, characterized in that: The adjustment component (3) is provided in two parts. The two adjustment blocks (38) are slidably connected to the two U-shaped bars (13) respectively. The two side plates (30) are respectively installed on the lower ends of the left and right sides of the cabinet (1). The two L-shaped plates (35) are respectively connected to the cabinet door (2).

6. A biosafety cabinet with a leak-proof sealing structure according to claim 1, characterized in that: Two pipes (11) are symmetrically installed on the rear side of the cabinet (1). The two pipes (11) are connected to the inside of the cabinet (1). Control valves (10) are respectively connected to the top of the two pipes (11).

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