Negative pressure isolation cabin air filtering device

Abstract

The utility model discloses an air filtering device for a negative pressure isolation cabin, which relates to the field of negative pressure isolation cabins, and comprises an isolation cabin, one side of the isolation cabin is rotatably connected with a protective door, the other side of the isolation cabin is connected with a sealing plate, and breathable sterile gauze is arranged in the protective door and the sealing plate. The outer end of the sealing plate is connected with an exhaust pipe, an exhaust fan is arranged in the exhaust pipe, the side end of the exhaust pipe is connected with an air guide cover, and an air outlet in the side end of the air guide cover is connected with an air guide pipe. Through the arrangement of the disinfection filter box, when disinfection liquid medicine is injected into air, the liquid medicine makes full contact with bacteria and viruses in the air, then the disinfected air is filtered and disinfected by an activated carbon plate again through a waterproof film, and therefore the disinfection effect can be improved through liquid medicine disinfection, activated carbon disinfection and two times of filtration and disinfection; microorganisms are killed more thoroughly, and the risk of disease transmission is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of negative pressure isolation cabins, in particular to an air filtering device for a negative pressure isolation cabin. Background Art

[0002] The negative pressure isolation cabin, also known as the negative pressure stretcher or negative pressure isolation stretcher, is an integration of an emergency stretcher and an isolation cabin for infectious patients. Its main function is to create an air pressure environment inside that is lower than the outside to prevent foreign pollutants from entering the isolation cabin. At the same time, the polluted gases generated by the patients in the cabin need to be filtered through an air filter before they can be discharged into the air, which can provide medical personnel with a relatively safe working environment and effectively prevent the spread of the disease.

[0003] However, the existing air filtration devices for negative pressure isolation cabins generally only use activated carbon blocks for filtering and disinfection. However, the filtering and disinfection ability of activated carbon is relatively weak, and it is difficult for the activated carbon to fully contact the bacteria and viruses in the air. Therefore, its disinfection ability is relatively weak and it cannot kill bacteria and viruses well.

[0004] In order to solve this technical problem, the utility model proposes an air filtering device for a negative pressure isolation cabin. Utility Model Content

[0005] The main purpose of the utility model is to provide an air filtering device for a negative pressure isolation cabin, which can effectively solve the problems mentioned in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A negative pressure isolation cabin air filtration device comprises an isolation cabin, one side of the isolation cabin is rotatably connected to a protective door, and the other side is connected to a closing plate, breathable sterile gauze is arranged in the protective door and the closing plate, the outer end of the closing plate is connected to an exhaust pipe, an exhaust fan is arranged in the exhaust pipe, the side end of the exhaust pipe is connected to an air guide hood, the side end of the air guide hood is connected to the air guide duct at the air outlet, the side end of the air guide duct is connected to a disinfection filter box, telescopic cylinders are connected on both sides of the disinfection filter box, the driving end of the telescopic cylinder is connected to a moving frame, an activated carbon plate and a waterproof membrane are connected in the moving frame, and an exhaust port is opened at the side end of the disinfection filter box.

[0008] Preferably, the exhaust pipe is connected to the isolation cabin through breathable sterile gauze, the blowing end of the exhaust fan faces the air guide hood, a liquid filling port is provided at the upper end of the disinfection filter box, and disinfection liquid is contained in the disinfection filter box.

[0009] Preferably, the movable frame is slidably connected in the disinfection filter box, a sealing ring is provided between the movable frame and the disinfection filter box, the activated carbon plate is located at the upper end of the waterproof membrane, and the exhaust port is located on the movable frame.

[0010] Preferably, the side end of the closing plate is connected to a mounting frame, the mounting frame is connected to the side end of the disinfection filter box, the lower end of the disinfection filter box is funnel-shaped, the lower end of the disinfection filter box is connected to a drain port, and a gate is provided in the drain port.

[0011] Preferably, the outer end of the protective door is connected to an air inlet window, the air inlet window is connected to the isolation cabin through a breathable sterile gauze, and the side end of the air inlet window is connected to a protective mesh cover.

[0012] Preferably, an air intake fan is connected to the air intake window, a blowing end of the air intake fan faces the isolation cabin, and a filter plate is arranged in the air intake window.

[0013] Preferably, a temperature detector and an air pressure detector are connected to the inner side of the protective door, a handle is connected to the outer end of the protective door, and a sealing ring is provided between the protective door and the isolation cabin.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, by providing a disinfection filter box and starting the exhaust fan, the air in the isolation cabin can be drawn out through the breathable sterile gauze, and then injected into the disinfection filter box through the air guide cover and the air guide pipe. When the air is injected with disinfectant liquid, the liquid will be in full contact with the bacteria and viruses in the air, and then the disinfected air will be filtered and disinfected again by the activated carbon plate through the waterproof membrane. In this way, the device can improve the disinfection effect through liquid disinfection and activated carbon disinfection, and kill microorganisms more thoroughly, reducing the risk of disease transmission.

[0016] In the utility model, a waterproof membrane is provided which allows air to pass but prevents liquid from passing, thereby preventing the disinfectant liquid from spilling when the device is moved; an exhaust port is provided at the side end of the disinfection filter box, thereby effectively reducing the amount of dust in the air entering the disinfection filter box; and a filter plate is provided in the air inlet window, thereby filtering the air injected into the isolation cabin, thereby preventing dust from entering the isolation cabin and causing discomfort to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a negative pressure isolation cabin air filtration device of the utility model;

[0018] Figure 2 This is a front view structural diagram of a negative pressure isolation cabin air filtering device of the utility model;

[0019] Figure 3 This is a schematic cross-sectional structure diagram of a negative pressure isolation cabin air filtering device of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of a disinfection filter box of a negative pressure isolation cabin air filtration device of the utility model;

[0021] Figure 5 The utility model is a schematic diagram of the breathable sterile gauze structure of a negative pressure isolation cabin air filter device.

[0022] In the figure: 1. Isolation cabin; 2. Protection door; 3. Closing plate; 4. Breathable sterile gauze; 5. Exhaust pipe; 6. Exhaust fan; 7. Air guide hood; 8. Air guide duct; 9. Disinfection filter box; 10. Telescopic cylinder; 11. Moving frame; 12. Activated carbon plate; 13. Waterproof membrane; 14. Exhaust port; 15. Mounting frame; 16. Drain port; 17. Air inlet window; 18. Intake fan; 19. Filter plate. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-5 As shown, a negative pressure isolation cabin air filtration device includes an isolation cabin 1. The isolation cabin 1 is fully enclosed. The gas exhaled by the patient lying therein will not be directly discharged into the air, so as to avoid the spread of the virus. A protective door 2 is rotatably connected to one side of the isolation cabin 1, and a closing plate 3 is connected to the other side. A handle is connected to the outer end of the protective door 2, so that the protective door 2 can be easily closed. A sealing ring is arranged between the protective door 2 and the isolation cabin 1, and the sealing ring is used to make the protective door 2 and the isolation cabin 1 tightly connected to avoid the air in the isolation cabin 1 from overflowing from the gap. Breathable sterile gauze 4 is arranged in the protective door 2 and the closing plate 3. The breathable sterile gauze 4 is breathable and can block a certain wind speed, so that the patient in the isolation cabin 1 will not feel uncomfortable due to direct wind.

[0025] An exhaust pipe 5 is connected to the outer end of the closing plate 3, and the exhaust pipe 5 is connected to the isolation cabin 1 through a breathable sterile gauze 4, so that the air in the isolation cabin 1 can enter the exhaust pipe 5, and an exhaust fan 6 is arranged in the exhaust pipe 5, and an air guide hood 7 is connected to the side end of the exhaust pipe 5, and the blowing end of the exhaust fan 6 faces the air guide hood 7, so that the exhaust fan 6 is started to draw the air in the isolation cabin 1 and guide the air to the air guide hood 7 side by side, and an air outlet at the side end of the air guide hood 7 is connected to an air guide pipe 8, and a disinfection filter box 9 is connected to the side end of the air guide pipe 8, so that the air exhaled by the patient will be discharged into the disinfection filter box 9 through the air guide pipe 8, and the disinfection filter box 9 contains disinfectant liquid, which is configured according to the virus carried by the patient, and a liquid filling port is provided at the upper end of the disinfection filter box 9 for adding disinfectant liquid to the disinfection filter box 9, and a mounting frame 15 is connected to the side end of the closing plate 3, and the mounting frame 15 is connected to the side end of the disinfection filter box 9, and the mounting frame 15 is used to support and fix the disinfection filter box 9.

[0026] The two sides of the disinfection filter box 9 are connected with telescopic cylinders 10, and the driving end of the telescopic cylinder 10 is connected with a moving frame 11. The telescopic cylinder 10 can drive the moving frame 11 to move so that it can be drawn out of the disinfection filter box 9. The moving frame 11 is slidably connected in the disinfection filter box 9. A sealing ring is provided between the moving frame 11 and the disinfection filter box 9. The sealing ring is used to make the moving frame 11 and the disinfection filter box 9 tightly connected. An activated carbon plate 12 and a waterproof membrane 13 are connected in the moving frame 11. The activated carbon plate 12 is located at the upper end of the waterproof membrane 13. The activated carbon plate 12 can re-discharge the gas discharged from the disinfectant solution. The disinfection filter box 9 is filtered and disinfected for the second time. The waterproof membrane 13 allows gas to pass through, but liquid cannot pass through, thereby preventing the disinfectant liquid from overflowing from the disinfection filter box 9. An exhaust port 14 is provided at the side end of the disinfection filter box 9. The exhaust port 14 is located at the upper end of the movable frame 11. The exhaust port 14 is used to discharge the gas filtered and disinfected by the activated carbon plate 12. The lower end of the disinfection filter box 9 is funnel-shaped, so that there will be no dead corner of liquid accumulation at the lower end of the disinfection filter box 9. The lower end of the disinfection filter box 9 is connected to a drain port 16, and a gate is provided in the drain port 16. The drain port 16 can completely discharge the disinfectant liquid from the disinfection filter box 9.

[0027] An air inlet window 17 is connected to the outer end of the protective door 2, and the air inlet window 17 is connected to the isolation cabin 1 through a breathable sterile gauze 4. An air intake fan 18 is connected to the air inlet window 17, and a protective mesh cover is connected to the side end of the air inlet window 17. The protective mesh cover is used to prevent the air intake fan 18 from causing harm to medical staff. The blowing end of the air intake fan 18 faces the isolation cabin 1, so that the air intake fan 18 can be started to inject air into the isolation cabin 1. A filter plate 19 is arranged in the air inlet window 17, and the filter plate 19 is used to filter dust in the air, so as to prevent dust from entering the isolation cabin 1. A temperature detector and an air pressure detector are connected to the inner side of the protective door 2.

[0028] Start the air intake fan 18 to inject air into the isolation cabin 1, wherein the filter plate 19 filters the air entering the isolation cabin 1, start the exhaust fan 6 to draw the air in the isolation cabin 1 out, and inject it into the disinfection filter box 9 through the air guide hood 7 and the air guide duct 8. With the cooperation of the air intake fan 18 and the exhaust fan 6, the air in the isolation cabin 1 can circulate, thereby supplying oxygen to the patient. After the air is injected into the disinfection filter box 9, the disinfectant solution will fully contact with the bacteria and viruses in the air for disinfection treatment, and then the disinfected air will pass through the waterproof membrane 13 and be filtered and disinfected by the activated carbon plate 12 again, and finally be discharged from the disinfection filter box 9 through the exhaust port 14.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A negative pressure isolation cabin air filtration device, comprising an isolation cabin (1), characterized in that: The isolation cabin (1) is rotatably connected to a protective door (2) on one side and connected to a closing plate (3) on the other side. Breathable sterile gauze (4) is arranged inside the protective door (2) and the closing plate (3). The outer end of the closing plate (3) is connected to an exhaust pipe (5). An exhaust fan (6) is arranged inside the exhaust pipe (5). The side end of the exhaust pipe (5) is connected to an air guide cover (7). The air outlet of the side end of the air guide cover (7) is connected to an air guide pipe (8). The side end of the air guide pipe (8) is connected to a disinfection filter box (9). Both sides of the disinfection filter box (9) are connected to telescopic cylinders (10). The driving end of the telescopic cylinder (10) is connected to a moving frame (11). An activated carbon plate (12) and a waterproof membrane (13) are connected inside the moving frame (11). An exhaust port (14) is provided at the side end of the disinfection filter box (9).

2. A negative pressure isolation cabin air filtration device according to claim 1, characterized in that: The exhaust pipe (5) is connected to the isolation cabin (1) through a breathable sterile gauze (4); the blowing end of the exhaust fan (6) faces the wind guide cover (7); a liquid filling port is provided at the upper end of the disinfection filter box (9); and a disinfection liquid is contained in the disinfection filter box (9).

3. The negative pressure isolation cabin air filtration device according to claim 1, characterized in that: The movable frame (11) is slidably connected in the disinfection filter box (9), a sealing ring is provided between the movable frame (11) and the disinfection filter box (9), the activated carbon plate (12) is located at the upper end of the waterproof membrane (13), and the exhaust port (14) is located on the movable frame (11).

4. The negative pressure isolation cabin air filtration device according to claim 1, characterized in that: The side end of the closing plate (3) is connected to a mounting frame (15), and the mounting frame (15) is connected to the side end of the disinfection filter box (9). The lower end of the disinfection filter box (9) is funnel-shaped, and the lower end of the disinfection filter box (9) is connected to a drainage port (16), and a gate is arranged in the drainage port (16).

5. The negative pressure isolation cabin air filtration device according to claim 1, characterized in that: The outer end of the protective door (2) is connected to an air inlet window (17), the air inlet window (17) is connected to the interior of the isolation cabin (1) through a breathable sterile gauze (4), and the side end of the air inlet window (17) is connected to a protective mesh cover.

6. The negative pressure isolation cabin air filtration device according to claim 5, characterized in that: An air intake fan (18) is connected to the air intake window (17), the blowing end of the air intake fan (18) faces the interior of the isolation cabin (1), and a filter plate (19) is arranged in the air intake window (17).

7. The negative pressure isolation cabin air filtration device according to claim 1, characterized in that: The inner side of the protective door (2) is connected to a temperature detector and an air pressure detector, the outer end of the protective door (2) is connected to a handle, and a sealing ring is provided between the protective door (2) and the isolation cabin (1).

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