All-steel ventilation cabinet convenient to clean

Abstract

The invention discloses an all-steel ventilation cabinet convenient to clean, and belongs to the technical direction of all-steel ventilation cabinets, the all-steel ventilation cabinet comprises an all-steel ventilation cabinet body, a sealing cover plate is detachably installed at one end of the interior of the all-steel ventilation cabinet body, a first cover plate is fixedly installed on one side of the all-steel ventilation cabinet body, and a plurality of sets of ventilation holes are further formed in the first cover plate; a first air quality sensor, a second air quality sensor and a third air quality sensor are installed on one side of the interior of the all-steel ventilation cabinet in an array mode, the air quality at different positions can be detected through cooperative use of the three sets of air quality sensors, pollution gas with different specific gravities is prevented from being accumulated in a certain area, and the safety of the whole ventilation cabinet is improved. And through cooperative use of the electric fan blades, the ventilation mode can be changed according to different air qualities, energy consumption during production is reduced, the effects of energy conservation and emission reduction are achieved, light pollution gas can be prevented from overflowing into a workshop to pollute the production environment, and the influence of the pollution gas on workers is relieved.

Description

Technical Field

[0001] The invention belongs to the technical direction of all-steel fume hoods, and specifically relates to an all-steel fume hood that is easy to clean. Background Art

[0002] All-steel fume hoods are the most commonly used local exhaust equipment in laboratories. There are many types of them. Due to their different structures and different conditions of use, their exhaust effects are also different. The performance of all-steel fume hoods is good or bad, mainly depending on the speed of air movement through the all-steel fume hoods. Among laboratory ventilation equipment, all-steel fume hoods are the most important equipment. Laboratory fume hoods are important equipment to protect laboratory operators from the hazards of hazardous chemicals. It is also necessary to protect and improve the environment of operators and to ensure product safety and environmental safety. Laboratory ventilation is an indispensable part of laboratory design. In order to prevent laboratory workers from inhaling or swallowing some toxic, pathogenic or unknown toxic chemicals and organisms, there should be good ventilation in the laboratory. In order to prevent the absorption of some vapors, gases and particles (smoke, soot, dust and aerosols), pollutants must be removed by all-steel fume hoods, ventilation hoods or local ventilation.

[0003] An all-steel fume hood is disclosed in the existing patent publication number CN214767680U, including a storage cabinet, a ventilation mechanism and a closing mechanism. The storage cabinet has two pairs of cabinet doors, and two first support plates and a second support plate are vertically fixedly connected at the edge of the top of the storage cabinet. The second support plate is located on the same side of the two first support plates, and the upper ends of the two first support plates are horizontally fixedly connected with a cover plate. One side of the cover plate is fixedly connected to the top of the second support plate, and the cover plate is vertically fixedly connected to a shielding box at the end away from the second support plate. The air outside the device will enter the device after being filtered by the air inlet sleeve, and it is impossible to quickly clean the sliding door back plate and the inside of the operating table, so some improvements are needed.

[0004] Therefore, it is necessary to design an all-steel fume hood that is practical and easy to clean. Summary of the invention

[0005] The purpose of the present invention is to provide an all-steel fume hood that is easy to clean in view of the existing device, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an all-steel fume hood that is easy to clean, comprising an all-steel fume hood, an operating table is arranged inside the all-steel fume hood, a sealing cover plate is detachably installed at one end of the interior of the all-steel fume hood, a mounting hole is opened on the sealing cover plate, and a ventilation pipe is detachably installed at the position corresponding to the mounting hole, one end of the ventilation pipe extends into the interior of the all-steel fume hood, and the other end is connected to a waste treatment device in a workshop, a first cover plate is fixedly installed on one side of the all-steel fume hood, a transparent observation window is arranged on the first cover plate, and a plurality of ventilation holes are also arranged on the first cover plate, three groups of air quality sensors are arrayed on one side of the interior of the all-steel fume hood, namely a first air quality sensor, a second air quality sensor, and a third air quality sensor, a second cover plate is detachably installed on the top of the all-steel fume hood, and a mounting hole is also arranged on the second cover plate, corresponding to the position of the ventilation pipe; The sealing cover plate is also provided with a concave groove; The all-steel fume hood is also provided with an air volume control component and a sterilization component; The air volume control component includes a mounting base, a rotating shaft, electric fan blades, and a ventilation fan. Several groups of the mounting bases are fixedly installed at both ends of several groups of ventilation holes. Several groups of the electric fan blades are rotatably connected to several groups of mounting bases. Several groups of the rotating shafts are fixedly installed on several groups of electric fan blades. Several groups of the rotating shafts cooperate with several groups of mounting bases. The ventilation fan is fixedly installed on a sealing cover plate and connected to a ventilation pipe.

[0007] The present invention further illustrates that a first electric slide rail is fixedly installed on one side of the interior of the all-steel fume hood, and a second electric slide rail is fixedly installed on the other side; a movable observation window is slidably connected to one side of the all-steel fume hood; a first electric slider is fixedly installed on one side of the movable observation window, and a second electric slider is fixedly installed on the other side; two groups of the electric sliders cooperate with the two groups of the electric slide rails; a cleaning brush is detachably installed on one end of the movable observation window.

[0008] The present invention further describes that the sterilization component includes a cleaning water tank, a cleaning nozzle, a first ultraviolet sterilization lamp, a second ultraviolet sterilization lamp, a third ultraviolet sterilization lamp, and an electric valve. The cleaning water tank is fixedly installed on a sealing cover plate, and the cleaning nozzle is fixedly installed on one side of the inner part of the concave groove and is connected to the cleaning water tank.

[0009] The present invention further illustrates that the first ultraviolet sterilization lamp, the second ultraviolet sterilization lamp, and the third ultraviolet sterilization lamp are respectively installed at intervals on the other side of the inner part of the concave groove.

[0010] The present invention further describes that the electric valve is fixedly installed in a built-in pipeline of the cleaning water tank.

[0011] The present invention further describes that the interior of the all-steel fume hood is hollow.

[0012] The present invention further describes that a drainage pipe is detachably mounted on one side of the table top of the operating table.

[0013] The present invention further illustrates that the all-steel fume hood is placed on the floor inside the production workshop.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention can detect the air quality at different positions inside the all-steel fume hood through the coordinated use of three groups of air quality sensors and equipment programs, prevent polluted gases of different specific gravities from accumulating in a certain area inside the all-steel fume hood, and improve the safety factor during production; through the coordinated use of electric fan blades, ventilation fans and equipment programs, the ventilation mode can be changed according to the different air qualities; when the gas generated by the experimental drugs is pollution-free, the air in the workshop is used for circulating ventilation operations, which reduces the energy consumption during production and plays a role in energy conservation and emission reduction; while the exhaust gas inside the all-steel fume hood is treated, the air outside the all-steel fume hood is extracted at the same time, which can prevent light polluted gases from overflowing into the workshop to pollute the production environment, effectively improve the efficiency of exhaust gas treatment, and reduce the impact of polluted gases on workers; By using the cleaning nozzle, electric valve and equipment program in coordination, the residual drug droplets on the inner surface of the mobile observation window can be rinsed to avoid the residual drug droplets affecting the observation effect of the staff. By using three sets of ultraviolet sterilization lamps in coordination with the equipment program, the drugs can be quickly sterilized when they produce low-pollution gas, while improving the disinfection effect and avoiding the impact of long cleaning time on subsequent production efficiency. When the drugs produce highly polluted gas, they can be completely sterilized to avoid the residual drug liquid in the all-steel fume hood affecting subsequent production. At the same time, it can also increase the service life of the all-steel fume hood and reduce the cost expenditure of the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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 are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is another perspective overall structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the internal structure of the all-steel fume hood of the present invention; Figure 4 The present invention Figure 3 Schematic diagram of the internal structure of area A; Figure 5The present invention Figure 3 Schematic diagram of the internal structure of area B; Figure 6 The present invention Figure 3 Schematic diagram of the internal structure of area C; Figure 7 is a schematic diagram of a mobile observation window of the present invention; Figure 8 It is a schematic diagram of the position of the cleaning nozzle of the present invention; Fig. 9 It is a schematic diagram of the structure of the sterilization component of the present invention; Fig.10 This is a schematic diagram of the electric fan blade of the present invention in an open state; Fig.11 This is a schematic diagram of the electric fan blade of the present invention in a closed state; Fig.12 It is a schematic diagram of the internal structure of the concave groove of the present invention.

[0016] In the figure: 1, all-steel fume hood; 11, operating table; 12, drain pipe; 13, ventilation pipe; 14, first cover plate; 141, ventilation hole; 15, first electric slide rail; 151, second electric slide rail; 16, first air quality sensor; 17, second air quality sensor; 18, third air quality sensor; 19, second cover plate; 191, sealing cover plate; 192, concave groove; 2. Mobile observation window; 21. First electric slider; 22. Second electric slider; 23. Cleaning brush; 3. Air volume control assembly; 31. Mounting seat; 32. Rotating shaft; 33. Electric fan blades; 34. Ventilating fan; 4. Sterilization component; 41. Cleaning water tank; 411. Electric valve; 42. Cleaning nozzle; 43. First ultraviolet sterilization lamp; 44. Second ultraviolet sterilization lamp; 45. Third ultraviolet sterilization lamp. DETAILED DESCRIPTION

[0017] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-12The present invention provides a technical solution: an all-steel fume hood that is easy to clean, comprising an all-steel fume hood 1, which is placed on the floor inside a production workshop. The interior of the all-steel fume hood 1 is hollow, and an operating table 11 is arranged inside the all-steel fume hood 1, which is convenient for the staff to perform production operations. A drain pipe 12 is detachably installed on one side of the table top of the operating table 11, which is used to discharge cleaning water. A sealing cover plate 191 is detachably installed at one end of the interior of the all-steel fume hood 1, which is used to form a closed space inside the all-steel fume hood 1 to prevent the exhaust gas generated during the production process from overflowing. A mounting hole is provided on the sealing cover plate 191, and a ventilation pipe 13 is detachably installed at the position corresponding to the mounting hole. One end of the ventilation pipe 13 extends into the interior of the all-steel fume hood 1, and the other end is connected to a waste treatment device in the workshop. A first cover plate 14 is fixedly installed on one side of the all-steel fume hood 1, and a transparent observation window is arranged on the first cover plate 14, which is convenient for the staff to observe. A plurality of ventilation holes 141 are also arranged on the first cover plate 14. The interior of the all-steel fume hood 1 A first electric slide rail 15 is fixedly installed on one side, and a second electric slide rail 151 is fixedly installed on the other side. The two sets of electric slide rails are used to cooperate in mobile operations. Three sets of air quality sensors are installed in an array on one side of the interior of the all-steel fume hood 1, namely, a first air quality sensor 16, a second air quality sensor 17, and a third air quality sensor 18. The three sets of air quality sensors are used to detect the air quality at different positions inside the all-steel fume hood 1 to avoid the accumulation of polluted gases with different specific gravities, which affects the operating safety of the staff. A second cover plate 19 is detachably installed on the top of the all-steel fume hood 1 to protect the internal components of the all-steel fume hood 1. The second cover plate 19 is also provided with mounting holes corresponding to the position of the ventilation pipe 13. A mobile observation window 2 is slidably connected to one side of the all-steel fume hood 1. A first electric slider 21 is fixedly installed on one side of the mobile observation window 2, and a second electric slider 22 is fixedly installed on the other side. The two sets of electric sliders cooperate with the two sets of electric slide rails, and a cleaning brush 23 is detachably installed on one end of the mobile observation window 2; The sealing cover plate 191 is also provided with a concave groove 192 for cooperating with and placing corresponding components; The all-steel fume hood 1 is also provided with an air volume control component 3 and a sterilization component 4; The air volume control assembly 3 includes a mounting seat 31, a rotating shaft 32, an electric fan blade 33, and a ventilation fan 34. Several groups of mounting seats 31 are fixedly mounted at both ends of several groups of ventilation holes 141 for coordinated fixing. Several groups of electric fan blades 33 are rotatably connected to several groups of mounting seats 31. Several groups of rotating shafts 32 are fixedly mounted on several groups of electric fan blades 33. Several groups of rotating shafts 32 cooperate with several groups of mounting seats 31. The ventilation fan 34 is fixedly mounted on the sealing cover plate 191 and connected to the ventilation pipe 13 for coordinated ventilation operation. The sterilization assembly 4 includes a cleaning water tank 41, a cleaning nozzle 42, a first ultraviolet sterilization lamp 43, a second ultraviolet sterilization lamp 44, a third ultraviolet sterilization lamp 45, and an electric valve 411. The cleaning water tank 41 is fixedly mounted on the sealing cover plate 191, the cleaning nozzle 42 is fixedly mounted on one side of the inner part of the concave groove 192, and is connected to the cleaning water tank 41, and is used for sterilizing and cleaning the movable observation window 2. The first ultraviolet sterilization lamp 43, the second ultraviolet sterilization lamp 44, and the third ultraviolet sterilization lamp 45 are respectively installed at intervals on the other side of the inner part of the concave groove 192, and are used for sterilizing the operating table 11. The electric valve 411 is fixedly mounted in the built-in pipeline of the cleaning water tank 41; The all-steel fume hood 1 is powered by an external workshop power supply to drive the internal components to operate. The all-steel fume hood 1 is equipped with a motor (not shown in the figure) for driving two sets of electric slide rails; The all-steel fume hood 1 is also equipped with an equipment program, which can control the operation of two sets of electric slide rails, the start and stop of the ventilation fan 34, the operation of the electric fan blades 33, the operation of the cleaning water tank 41, the opening and closing of three sets of ultraviolet disinfection lamps, and the opening and closing of the electric valve 411; Two sets of electric slide rails, a built-in motor of the all-steel fume hood 1, a ventilation fan 34, electric fan blades 33, a cleaning water tank 41, three sets of ultraviolet disinfection lamps, and an electric valve 411 are all connected to the equipment program signal.

[0019] Cabinet ventilation operation: When it is necessary to perform a production experiment, the staff first turns on the power of the workshop. At this time, the all-steel fume hood 1 starts, the equipment program starts, and the equipment program controls the built-in motor of the all-steel fume hood 1 to start. The two sets of electric slide rails drive the two sets of electric sliders to move upward, so that the mobile observation window 2 rises upward. When the mobile observation window 2 is opened, the equipment program controls the built-in motor of the all-steel fume hood 1 to turn off, and then the staff puts the experimental drugs on the operating table 11. At this time, the staff controls the built-in motor of the all-steel fume hood 1 to start through the equipment program, and the two sets of electric slide rails drive the two sets of electric sliders to move downward, so that the mobile observation window 2 is lowered, and then the equipment program continues to check. The values ​​of the three groups of air quality sensors are measured and compared with the set values. The equipment program sets the air quality values ​​to M1, M2, and M3, where M1 is the minimum value and M3 is the maximum value, which can be adjusted according to specific needs. The opening values ​​of the electric fan blades 33 are N1, N2, and N3, where N1 is the minimum value and N3 is the maximum value, which can be adjusted according to specific needs. The speed of the ventilation fan 34 is V1, V2, and V3, where V1 is the minimum value and V3 is the maximum value, which can be adjusted according to specific needs. When the equipment program detects that the values ​​of the three groups of air quality sensors are all M1, the equipment program determines that the gas generated by the experimental drugs at this time is pollution-free, and the equipment program controls several groups of electric fan blades 33 is turned on, and the opening value is N3. The electric fan blades 33 are fully opened to circulate the air in the workshop to the inside of the all-steel fume hood 1 for ventilation. When the equipment program detects that only the value of the second air quality sensor 17 is M2, the equipment program determines that the gas generated by the experimental drugs is light and polluted at this time. The equipment program controls the opening values ​​of several groups of electric fan blades 33 to be adjusted to N2, reduces the opening degree of the electric fan blades 33 and controls the ventilation fan 34 to be turned on, with a speed of V1. The ventilation fan 34 rotates slowly to draw the waste gas generated by the experimental drugs to the subsequent waste gas treatment device, and at the same time extracts the waste gas from the outside of the all-steel fume hood 1 through several groups of ventilation holes 141. The air is ventilated and circulated to prevent the polluted gas generated by the experimental drugs from overflowing into the production workshop and affecting the staff. When the equipment program detects that only the value of the third air quality sensor 18 is M2, the equipment program determines that the gas generated by the experimental drugs is light and polluted at this time. The equipment program controls the opening value of several groups of electric fan blades 33 to be adjusted to N1 and controls the ventilation fan 34 to be turned on with a speed of V2, so that the electric fan blades 33 are completely closed to prevent the polluted gas from overflowing into the workshop. At the same time, the ventilation fan 34 increases the speed to draw the waste gas generated by the experimental drugs to the subsequent waste gas treatment device to prevent the polluted gas from accumulating inside the all-steel fume hood 1; When the equipment program detects that the value of any group of air quality sensors is M3, the equipment program determines that the gas generated by the experimental drugs at this time is a highly polluted gas, and the equipment program controls the opening value of several groups of electric fan blades 33 to be adjusted to N1 and controls the ventilation fan 34 to be turned on, with a speed of V3, so that the electric fan blades 33 are completely closed to prevent the polluted gas from overflowing into the workshop. At the same time, the ventilation fan 34 is adjusted to the highest speed to extract the waste gas generated by the experimental drugs to the subsequent waste gas treatment device to avoid the accumulation of polluted gas inside the all-steel fume hood 1; After the experimental drug production is completed, the staff controls the built-in motor of the all-steel fume hood 1 through the equipment program to start, and the two sets of electric slide rails drive the two sets of electric slide blocks to move upward, so that the movable observation window 2 rises upward, and the staff can take out the drugs at this time; Through the coordinated use of three sets of air quality sensors and equipment programs, the air quality at different positions inside the all-steel fume hood 1 can be detected to prevent polluted gases of different specific gravities from accumulating in a certain area inside the all-steel fume hood 1, thereby improving the safety factor during production. Through the coordinated use of electric fan blades 33, ventilation fans 34 and equipment programs, the ventilation mode can be changed according to the different air qualities. When the gas generated by the experimental drugs is pollution-free, the air in the workshop is used for circulating ventilation operations to reduce energy consumption during production, thereby playing a role in energy conservation and emission reduction. While the exhaust gas inside the all-steel fume hood 1 is being treated, the air outside the all-steel fume hood 1 is also extracted, thereby preventing light polluted gases from overflowing into the workshop to pollute the production environment, effectively improving the efficiency of exhaust gas treatment, and reducing the impact of polluted gases on workers.

[0020] Cleaning operation: After completing the above operations, the equipment program controls the cleaning operation. The equipment program first controls the built-in motor of the all-steel fume hood 1 to start, and the two sets of electric slide rails drive the two sets of electric sliders to move downward, so that the movable observation window 2 is closed downward. Then the equipment program controls different cleaning operations according to the values ​​detected by the three sets of air quality sensors. The equipment program sets the cleaning time to T1 and T2. T1 is the minimum value and T2 is the maximum value. It can be adjusted according to specific needs. When the value detected by the three sets of air quality sensors is M1, the equipment program first controls the opening degree of the electric fan blade 33 to be adjusted to N1. The speed of the ventilation fan 34 is adjusted to V3, and then the equipment program controls the electric valve 411 to open, and the cleaning liquid is sprayed obliquely downward from the cleaning nozzle 42 to the inner surface of the movable observation window 2, and the residual drug droplets on the inner surface of the movable observation window 2 are washed away to prevent the residual drug from affecting the observation of the staff. When the cleaning time T1 is reached, the equipment program controls the electric valve 411 to close, and the opening degree of the electric fan blade 33 is adjusted to N3, and the built-in motor of the all-steel fume hood 1 is started to open the movable observation window 2 upward, thereby improving the ventilation efficiency and preventing the accumulation of humid gas inside the all-steel fume hood 1 from affecting the subsequent production; When the value detected by the three groups of air quality sensors is M2, the equipment program first controls the opening degree of the electric fan blades 33 to be adjusted to N1, and the speed of the ventilation fan 34 is adjusted to V3, and then the equipment program controls the electric valve 411 to open, and the cleaning liquid is sprayed obliquely downward from the cleaning nozzle 42 to the inner surface of the movable observation window 2, and the residual drug droplets on the inner surface of the movable observation window 2 are washed away to prevent the residual drug liquid from affecting the observation of the staff. When the cleaning time T1 is reached, the equipment program controls the electric valve 411 to close, and the second ultraviolet sterilization lamp 44 is turned on for a time of T1. While discharging the humid gas, the interior of the all-steel fume hood 1 is quickly sterilized to prevent the polluted gas generated by the experimental medicine bottle from remaining on the internal surface of the all-steel fume hood 1. At the same time, it can improve production efficiency and reduce cleaning time. When the T1 time is reached, the equipment program controls the second ultraviolet sterilization lamp 44 to close, and the built-in motor of the all-steel fume hood 1 is started to open the movable observation window 2 upward; When the value detected by the three groups of air quality sensors is M3, the equipment program first controls the opening degree of the electric fan blades 33 to be adjusted to N1, and the speed of the ventilation fan 34 is adjusted to V3, and then the equipment program controls the electric valve 411 to open, and the cleaning liquid is sprayed obliquely downward from the cleaning nozzle 42 to the inner surface of the movable observation window 2, and the residual drug droplets on the inner surface of the movable observation window 2 are washed away to prevent the residual drug liquid from affecting the observation of the staff. The cleaning time is adjusted to T2. When the cleaning time T2 is reached, the equipment program controls the electric valve 411 to close, and the three groups of ultraviolet sterilization lamps are turned on for a time of T2. While discharging the humid gas, the interior of the all-steel fume hood 1 is disinfected and sterilized to prevent the polluted gas generated by the experimental medicine bottle from remaining on the internal table of the all-steel fume hood 1, and ensure that no experimental drugs remain in the all-steel fume hood 1; By using the cleaning nozzle 42, the electric valve 411 in conjunction with the equipment program, the residual drug droplets on the inner surface of the movable observation window 2 can be rinsed to prevent the residual drug droplets from affecting the observation effect of the staff. By using three sets of ultraviolet sterilization lamps in conjunction with the equipment program, the drug can be quickly sterilized when it produces low-pollution gas, while improving the disinfection effect and avoiding the impact of long cleaning time on subsequent production efficiency. When the drug produces highly polluted gas, it can be completely sterilized to prevent the drug liquid from remaining inside the all-steel fume hood 1 and affecting subsequent production. At the same time, it can also increase the service life of the all-steel fume hood 1 and reduce the cost expenditure of the factory.

[0021] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An all-steel fume hood that is easy to clean, comprising an all-steel fume hood (1), characterized in that: An operating table (11) is provided inside the all-steel fume hood (1). A sealing cover plate (191) is detachably mounted on one end of the interior of the all-steel fume hood (1). A mounting hole is provided on the sealing cover plate (191), and a ventilation pipe (13) is detachably mounted at a position corresponding to the mounting hole. One end of the ventilation pipe (13) extends into the interior of the all-steel fume hood (1), and the other end is connected to a waste treatment device in a workshop. A first cover plate (14) is fixedly mounted on one side of the all-steel fume hood (1). A transparent observation window is provided on the first cover plate (14). A plurality of ventilation holes (141) are also provided on the first cover plate (14). Three groups of air quality sensors are arrayed on one side of the interior of the all-steel fume hood (1), namely a first air quality sensor (16), a second air quality sensor (17), and a third air quality sensor (18). A second cover plate (19) is detachably mounted on the top of the all-steel fume hood (1). A mounting hole is also provided on the second cover plate (19), corresponding to the position of the ventilation pipe (13). The sealing cover plate (191) is also provided with a concave groove (192); The all-steel fume hood (1) is also provided with an air volume control component (3) and a sterilization component (4); The air volume control component (3) comprises a mounting seat (31), a rotating shaft (32), an electric fan blade (33), and a ventilation fan (34); a plurality of groups of the mounting seats (31) are fixedly mounted at both ends of a plurality of groups of ventilation holes (141); a plurality of groups of the electric fan blades (33) are rotatably connected to the plurality of groups of mounting seats (31); a plurality of groups of the rotating shafts (32) are fixedly mounted on the plurality of groups of electric fan blades (33); a plurality of groups of the rotating shafts (32) cooperate with the plurality of groups of mounting seats (31); and the ventilation fan (34) is fixedly mounted on a sealing cover plate (191) and connected to a ventilation pipe (13).

2. The all-steel fume hood that is easy to clean according to claim 1, characterized in that: A first electric slide rail (15) is fixedly installed on one side of the interior of the all-steel fume hood (1), and a second electric slide rail (151) is fixedly installed on the other side. A movable observation window (2) is slidably connected to one side of the all-steel fume hood (1). A first electric slider (21) is fixedly installed on one side of the movable observation window (2), and a second electric slider (22) is fixedly installed on the other side. Two groups of the electric sliders cooperate with the two groups of the electric slide rails. A cleaning brush (23) is detachably installed on one end of the movable observation window (2).

3. The all-steel fume hood that is easy to clean according to claim 2, characterized in that: The sterilization assembly (4) comprises a cleaning water tank (41), a cleaning nozzle (42), a first ultraviolet sterilization lamp (43), a second ultraviolet sterilization lamp (44), a third ultraviolet sterilization lamp (45), and an electric valve (411); the cleaning water tank (41) is fixedly mounted on the sealing cover plate (191); the cleaning nozzle (42) is fixedly mounted on one side of the inner portion of the concave groove (192) and is connected to the cleaning water tank (41).

4. The all-steel fume hood that is easy to clean according to claim 3, characterized in that: The first ultraviolet sterilization lamp (43), the second ultraviolet sterilization lamp (44), and the third ultraviolet sterilization lamp (45) are respectively installed at intervals on the other side of the interior of the concave groove (192).

5. The all-steel fume hood that is easy to clean according to claim 4, characterized in that: The electric valve (411) is fixedly installed in a built-in pipeline of the cleaning water tank (41).

6. The all-steel fume hood that is easy to clean according to claim 5, characterized in that: The interior of the all-steel fume hood (1) is hollow.

7. The all-steel fume hood that is easy to clean according to claim 6, characterized in that: A drainage pipe (12) is detachably mounted on one side of the tabletop of the operating table (11).

8. The all-steel fume hood that is easy to clean according to claim 7, characterized in that: The all-steel fume hood (1) is placed on the floor inside the production workshop.

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