A super-clean bench

Abstract

The application discloses a super-clean bench and belongs to the technical field of medical equipment. The super-clean bench mainly comprises a super-clean bench cabinet body, a sealed glass window which is arranged on one side of the sealed glass window, observation windows which are arranged on the left side and the right side of the super-clean bench cabinet body, and a filtering installation groove which is arranged on the top of the super-clean bench cabinet body; and a filtering unit which comprises a mounting plate which is bolted on the top of the super-clean bench cabinet body and a filtering assembly which is arranged at the bottom of the mounting plate. The super-clean bench is provided with the filtering assembly, the cross section of the fiber material in the filtering assembly is in a wave shape, the wave shape can increase the filtering area and reduce the airflow resistance, the folds are supported by the separating strips, the adhesion of the folds is avoided, the surface of the fiber material can be attached to an electrostatic coating, the electrostatic adsorption can enhance the capturing capacity of submicron particles, the activated carbon layer on the top of the fiber material can adsorb and filter peculiar smell in the air, and the indoor air is prevented from being polluted by the peculiar smell.

Description

Technical Field

[0001] This application relates to the field of biomedical technology, specifically to a clean bench. Background Technology

[0002] Clean benches, as a general-purpose local purification device, occupy an indispensable position in many industries with stringent requirements for environmental cleanliness. In the scientific research and pharmaceutical fields, drug development and microbiological testing cannot tolerate even the slightest impurity. Clean benches provide a stable and reliable clean space, ensuring drug quality and experimental accuracy. In the medical and health field, surgical instrument preparation and cell culture require a sterile environment. Clean benches greatly reduce the risk of infection and protect patient health. In the manufacturing of electronic and optical instruments, ultrafine dust can affect the performance of electronic products and the precision of optical instruments. The clean environment created by clean benches is the foundation for producing high-quality products. Early clean benches had relatively simple structures and functions, mainly relying on basic top-mounted filters and disinfection lamps to disinfect and expel the air inside the clean bench.

[0003] However, existing laminar flow filtration devices can only filter out particulate matter and odors from the air, but cannot collect and filter harmful gases. The discharged gases can affect indoor air quality and are harmful to the health of laboratory personnel. Furthermore, the waste generated during the disinfection and use of the laminar flow hood requires the operator to remove the waste from the laminar flow hood and then return to it to continue the experiment, which is cumbersome.

[0004] Therefore, it is necessary to provide a clean bench to solve the above problems.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a laminar flow hood that solves the problem that existing laminar flow hood filtration devices can only filter powdery particles and odors in the air, but cannot collect and filter harmful gaseous substances in the air. The discharged substances will affect the indoor air and be harmful to the health of the test personnel. Furthermore, the waste generated during the disinfection and use of the laminar flow hood requires the test personnel to throw the waste out of the laminar flow hood and then return to the laminar flow hood to continue the experiment, which is cumbersome.

[0007] The technical solution adopted by this application to solve its technical problem is as follows: a laminar flow hood, including a laminar flow hood cabinet, including a sealed glass window installed on one side of the sealed glass window, observation windows set on the left and right sides of the laminar flow hood cabinet, and a filter mounting groove set on the top of the laminar flow hood cabinet; a filter unit, including a mounting plate bolted to the top of the laminar flow hood cabinet, and a filter assembly located at the bottom of the mounting plate; an operation unit, including an operation table fixedly connected to the bottom of the laminar flow hood cabinet, a waste collection assembly set in the operation table, a disinfectant water tank located on the right side of the waste collection assembly, a disinfectant cotton tank set on the right side of the waste collection assembly, a sealing groove parallel to the waste collection assembly, and a support leg fixedly connected to the bottom of the operation table; a sealing plate is fixedly connected to the bottom of the sealed glass window.

[0008] Furthermore, the filter assembly includes a filter mounting plate bolted to the inner wall of the filter mounting groove, and a filter material fixedly connected to the inner wall of the filter mounting plate; the filter material includes a fiber material fixedly connected to the inner wall of the filter mounting plate, filter paper disposed at the bottom of the fiber material and fixedly connected to the inner wall of the filter mounting plate, an activated carbon layer disposed at the top of the fiber material and fixedly connected to the inner wall of the filter mounting plate, a composite filter element disposed at the top of the activated carbon layer and fixedly connected to the inner wall of the filter mounting plate, and meltblown fabric disposed at the top of the composite filter element and fixedly connected to the inner wall of the filter mounting plate.

[0009] Furthermore, the mounting plate includes multiple sets of ventilation holes disposed within the mounting plate, and a fan bolted to the bottom of the mounting plate.

[0010] Furthermore, the waste collection assembly includes a waste inlet in the operating table, a first sealing cover that engages with the top of the waste inlet, a mounting bracket located at the bottom of the waste inlet and fixedly connected to the bottom of the operating table, and a collection box that engages with the mounting bracket.

[0011] Furthermore, a fixing groove is provided at the bottom of the inner wall of the mounting bracket.

[0012] Furthermore, the collection box includes limiting blocks disposed at the front and rear ends of the collection box, and a handle disposed at one end of the collection box.

[0013] Furthermore, the depth of the disinfectant tank is greater than the thickness of the operating table, and the top of the disinfectant tank is sealed with a second sealing cover.

[0014] Furthermore, the depth of the disinfection cotton chamber is greater than the thickness of the operating table, and the top of the disinfection cotton chamber is sealed with a third sealing cover.

[0015] The beneficial effects of this application are as follows: The clean bench provided by this application, through the setting of the filter component, the cross-section of the fiber material in the filter component is wavy. The wavy setting can increase the filtration area and reduce airflow resistance. The pleats are supported by the separator strips to prevent the pleats from sticking together. The surface of the fiber material may be coated with an electrostatic coating, which enhances the capture ability of submicron particles through electrostatic adsorption. The activated carbon layer on the top of the fiber material can adsorb and filter odors in the air, preventing odorous gases from polluting the room. The density of the composite filter element is less than that of the activated carbon layer, further filtering the air. The meltblown cloth on the top of the composite filter element can effectively intercept and adsorb harmful substances such as tiny particles, bacteria and viruses in the air. The setting of the operating unit can prevent the laboratory personnel's hands from being removed from the clean bench cabinet and coming into contact with bacteria in the outside air. The operation is simple and safe.

[0016] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is an overall schematic diagram of a clean bench according to this application; Figure 2 This is an exploded view of the filtration unit of a laminar flow hood according to this application; Figure 3 This is a cross-sectional schematic diagram of a filter component of a laminar flow hood according to this application; Figure 4 This is a schematic diagram of the operating unit of a clean bench according to this application; The following are the labeling elements in the figure: 100. Clean bench cabinet; 200. Filter unit; 300. Operation unit; 101. Sealed glass window; 101a. Sealing plate; 102. Observation window; 103. Filter mounting slot; 201. Mounting plate; 201a. Vent hole; 201b. Fan; 202. Filter assembly; 202a. Filter mounting plate; 202b. Filter material; 202b-1. Fiber material; 202b-2. Filter paper; 202b-3. Activated carbon layer; 202b-4. 1. Composite filter element; 202b-5. Meltblown fabric; 301. Operating table; 302. Waste collection assembly; 302a. Waste outlet; 302b. First sealing cover; 302c. Mounting bracket; 302c-1. Fixing groove; 302d. Collection box; 302d-1. Limiting block; 302d-2. Handle; 303. Disinfectant water tank; 303a. Second sealing cover; 304. Disinfectant cotton tank; 304a. Third sealing cover; 305. Sealing groove; 306. Support leg. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] like Figure 1-4As shown, this application provides a laminar flow hood, including a laminar flow hood cabinet 100, including a sealed glass window 101 installed on one side of the sealed glass window 101, observation windows 102 disposed on the left and right sides of the laminar flow hood cabinet 100, and a filter mounting groove 103 disposed on the top of the laminar flow hood cabinet 100; a filter unit 200, including a mounting plate 201 bolted to the top of the laminar flow hood cabinet 100, and a filter assembly 202 located at the bottom of the mounting plate 201; and an operation unit 300, including... The laminar flow hood cabinet 100 is fixedly connected to the bottom of an operating table 301, a waste collection component 302 disposed within the operating table 301, a disinfectant water tank 303 located to the right of the waste collection component 302, a disinfectant cotton tank 304 located to the right of the waste collection component 302, a sealing groove 305 parallel to the waste collection component 302, and a support leg 306 fixedly connected to the bottom of the operating table 301; the bottom of the sealed glass window 101 is fixedly connected to a sealing plate 101a. A limiting ring is provided in the filter mounting groove 103, the length and width of which are smaller than the filter component 202, facilitating the placement of the filter component 202. A limiting screw is provided at the top of the limiting ring to facilitate the fixing of the filter component 202. A rubber strip is provided at the bottom of the sealing plate 101a, and the rubber strip engages with the sealing groove 305, thereby sealing the laminar flow hood cabinet 100.

[0021] The filter assembly 202 includes a filter mounting plate 202a bolted to the inner wall of the filter mounting groove 103, and a filter material 202b fixedly connected to the inner wall of the filter mounting plate 202a. The filter material 202b includes a fiber material 202b-1 fixedly connected to the inner wall of the filter mounting plate 202a, a filter paper 202b-2 disposed at the bottom of the fiber material 202b-1 and fixedly connected to the inner wall of the filter mounting plate 202a, an activated carbon layer 202b-3 disposed at the top of the fiber material 202b-1 and fixedly connected to the inner wall of the filter mounting plate 202a, a composite filter element 202b-4 disposed at the top of the activated carbon layer 202b-3 and fixedly connected to the inner wall of the filter mounting plate 202a, and a meltblown fabric 202b-5 disposed at the top of the composite filter element 202b-4 and fixedly connected to the inner wall of the filter mounting plate 202a. The cross-section of fiber material 202b-1 is wavy, which can increase the filtration area and reduce airflow resistance. The pleats are supported by separators to prevent them from sticking together. The surface of fiber material 202b-1 may be coated with an electrostatic coating, which enhances the ability to capture submicron particles through electrostatic adsorption.

[0022] The mounting plate 201 includes multiple sets of ventilation holes 201a disposed within the mounting plate 201, and a fan 201b bolted to the bottom of the mounting plate 201.

[0023] The waste collection assembly 302 includes a waste outlet 302a opened in the operating table 301, a first sealing cover 302b that engages with the top of the waste outlet 302a, a mounting frame 302c located at the bottom of the waste outlet 302a and fixedly connected to the bottom of the operating table 301, and a collection box 302d that engages with the mounting frame 302c. The waste outlet 302a penetrates the operating table 301, and the mounting frame 302c is located directly below the waste outlet 302a.

[0024] The mounting bracket 302c has a fixing groove 302c-1 at the bottom of its inner wall.

[0025] The collection box 302d includes a limiting block 302d-1 disposed at the front and rear ends of the collection box 302d, and a handle 302d-2 disposed at one end of the collection box 302d. The limiting block 302d-1 is engaged with the fixing groove 302c-1.

[0026] The depth of the disinfection water tank 303 is greater than the thickness of the operating table 301, and the top of the disinfection water tank 303 is sealed with a second sealing cover 303a.

[0027] The depth of the disinfection cotton chamber 304 is greater than the thickness of the operating table 301, and the top of the disinfection cotton chamber 304 is sealed with a third sealing cover 304a.

[0028] Working principle: During use, the operator holds the sealed glass window 101 and pushes it upward to open the laminar flow hood cabinet 100. Then, they open the disinfectant water chamber 303 and the disinfectant cotton chamber 304. Using tweezers, they take a cotton ball from the disinfectant cotton chamber 304, dip it in the disinfectant water from the disinfectant water chamber 303, and wipe the surface of the workbench 301 for disinfection. After disinfection, they open the first sealing cover 302b and discard the waste into the collection box 302d through the waste outlet 302a. Then, they seal the waste outlet 302a again with the first sealing cover 302b. This operation prevents the operator's hands from coming into contact with bacteria in the outside air when they leave the laminar flow hood cabinet 100. The operation is simple and highly safe. Furthermore, the fan 201b, which is activated during use, draws air from inside the laminar flow hood cabinet 100 upwards. As the air passes through the filter assembly 202, the filter paper 202b-2 effectively cleans the laminar flow hood cabinet 100. Large particles in the air are filtered and adsorbed. The cross-section of the fiber material 202b-1 is wavy, which increases the filtration area and reduces airflow resistance. The pleats are supported by separators to prevent them from sticking together. The surface of the fiber material 202b-1 may be coated with an electrostatic coating, which enhances the capture ability of submicron particles through electrostatic adsorption. The activated carbon layer 202b-3 on top of the fiber material 202b-1 can adsorb and filter odors in the air, preventing odorous gases from polluting the indoor environment. The composite filter element 202b-4 has a lower density than the activated carbon layer 202b-3, further filtering the air. The meltblown cloth 202b-5 on top of the composite filter element 202b-4 can effectively intercept and adsorb harmful substances such as tiny particles, bacteria, and viruses in the air. The filtered air is discharged through the vent 201a.

[0029] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A clean bench, comprising a clean bench cabinet (100), characterized in that: It includes a sealed glass window (101) installed on one side of the sealed glass window (101), observation windows (102) set on the left and right sides of the clean bench cabinet (100), and a filter mounting groove (103) set on the top of the clean bench cabinet (100). The filter unit (200) includes a mounting plate (201) bolted to the top of the clean bench cabinet (100) and a filter assembly (202) located at the bottom of the mounting plate (201). The operating unit (300) includes an operating table (301) fixedly connected to the bottom of the clean bench cabinet (100), a waste collection component (302) disposed in the operating table (301), a disinfectant water tank (303) located on the right side of the waste collection component (302), a disinfectant cotton tank (304) disposed on the right side of the waste collection component (302), a sealing groove (305) parallel to the waste collection component (302), and a support leg (306) fixedly connected to the bottom of the operating table (301). The sealing glass window (101) is fixedly connected to the bottom of the sealing plate (101a).

2. The clean bench according to claim 1, characterized in that: The filter assembly (202) includes a filter mounting plate (202a) bolted to the inner wall of the filter mounting groove (103), and filter material (202b) fixedly connected to the inner wall of the filter mounting plate (202a). The filter material (202b) includes a fiber material (202b-1) fixedly connected to the inner wall of the filter mounting plate (202a), a filter paper (202b-2) disposed at the bottom of the fiber material (202b-1) and fixedly connected to the inner wall of the filter mounting plate (202a), an activated carbon layer (202b-3) disposed at the top of the fiber material (202b-1) and fixedly connected to the inner wall of the filter mounting plate (202a), a composite filter element (202b-4) disposed at the top of the activated carbon layer (202b-3) and fixedly connected to the inner wall of the filter mounting plate (202a), and a meltblown cloth (202b-5) disposed at the top of the composite filter element (202b-4) and fixedly connected to the inner wall of the filter mounting plate (202a).

3. The clean bench according to claim 1, characterized in that: The mounting plate (201) includes multiple sets of ventilation holes (201a) disposed in the mounting plate (201) and a fan (201b) bolted to the bottom of the mounting plate (201).

4. The clean bench according to claim 1, characterized in that: The waste collection assembly (302) includes a waste inlet (302a) opened in the operating table (301), a first sealing cover (302b) that engages with the top of the waste inlet (302a), a mounting bracket (302c) located at the bottom of the waste inlet (302a) and fixedly connected to the bottom of the operating table (301), and a collection box (302d) that engages with the mounting bracket (302c).

5. A clean bench according to claim 4, characterized in that: The mounting bracket (302c) has a fixing groove (302c-1) at the bottom of its inner wall.

6. A clean bench according to claim 4, characterized in that: The collection box (302d) includes a limiting block (302d-1) disposed at the front and rear ends of the collection box (302d), and a handle (302d-2) disposed at one end of the collection box (302d).

7. A clean bench according to claim 1, characterized in that: The depth of the disinfection tank (303) is greater than the thickness of the operating table (301), and the top of the disinfection tank (303) is sealed with a second sealing cover (303a).

8. A clean bench according to claim 1, characterized in that: The depth of the disinfection cotton chamber (304) is greater than the thickness of the operating table (301), and the top of the disinfection cotton chamber (304) is sealed with a third sealing cover (304a).

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