Intensive care unit air purification and germ killing device

By designing air purification and bacteria disinfection devices for air intake, purification, opening and closing components, the problems of uneven distribution of disinfectant and short contact time in traditional methods are solved, and efficient and uniform bacteria disinfection effect is achieved, reducing the risk of transmission of infectious diseases.

CN120385132AInactive Publication Date: 2025-07-29THE SECOND HOSPITAL OF HEBEI MEDICAL UNIV
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Patent Information

Application Number
CN202510733769.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-04
Publication Date
2025-07-29
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The traditional air purification and germ disinfection methods in intensive care units are difficult to ensure the uniform distribution of disinfectants in the air. The contact time between disinfectants and air is short, resulting in poor germ killing effects, which cannot meet the efficient, comprehensive and accurate needs of intensive care units for air purification and germ disinfection.

Method used

An air purification and germ disinfection device including an intake assembly, purification assembly, opening and closing assembly, agitating assembly and exhaust assembly is designed. Air is transported through the intake assembly, the purification assembly sprays disinfectant, the opening and closing assembly extends the contact time, the agitating assembly increases the mixing efficiency, and the exhaust assembly quickly discharges the purified gas.

Benefits of technology

The uniform distribution of disinfectant in the air is achieved, the contact time between disinfectant and bacteria is extended, the bacteria killing effect is improved, the air circulation is ensured, the risk of secondary pollution is reduced, and a healthier living and working environment is provided.

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Abstract

The invention provides an intensive care unit air purification and germ disinfection and killing device, and relates to the technical field of air purification in wards, the intensive care unit air purification and germ disinfection and killing device comprises a shell, and an air inlet assembly is arranged on the shell; a purification assembly is arranged on the shell, an opening and closing assembly is arranged in the shell, and a stirring assembly is arranged in the shell; by arranging the purifying assembly, air is purified and disinfected, various germs in the air are effectively killed, the spreading risk of infectious diseases is reduced, a healthier living and working environment is provided for people, meanwhile, by arranging the stirring assembly, the air is stirred so that disinfectant can be more evenly distributed in the disinfection chamber, and the disinfection effect is improved. In the air purification process, through the arranged opening and closing assembly, the contact time is prolonged, the disinfectant can fully react with germs in the air, more germs are acted by the disinfectant, and therefore the germs are killed more effectively.
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Description

Technical Field

[0001] The present invention relates to the technical field of ward air purification, and particularly to an air purification and germ disinfection device for intensive care units. Background Art

[0002] Intensive care units mainly admit patients with critical illnesses and low resistance. They have extremely high requirements for air quality. Various germs present in the air, such as bacteria, viruses, fungi, etc., are likely to cause serious problems such as respiratory infections and cross-infections in patients, significantly increasing the treatment difficulty and death risk of patients, and may even lead to the spread of infectious diseases within the ward.

[0003] However, traditional air purification and germ disinfection methods have many deficiencies. Currently, traditional air purification and germ disinfection methods for intensive care units mainly include ventilation, using air purifiers, and spraying disinfectants, etc. The existing method of using spraying disinfectants for air purification not only makes it difficult to ensure the uniform distribution of the disinfectant in the air, resulting in low mixing efficiency of air and disinfectant, but also the contact time between the disinfectant and the air is short, unable to allow germs to fully react with the disinfectant, thereby affecting the germ killing effect, making it difficult to effectively control the germs in the air, and at the same time unable to fully meet the requirements of intensive care units for the high efficiency, comprehensiveness, and accuracy of air purification and germ disinfection. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and propose an air purification and germ disinfection device for intensive care units to solve the problems of low efficiency and incomplete disinfection of air purification and disinfection inside intensive care units in the above technical solutions.

[0005] To achieve the above purpose, the present invention adopts the following technical solution: An air purification and germ disinfection device for intensive care units, including a housing, an air intake component is provided on the housing; a purification component is provided on the housing, an opening and closing component is provided inside the housing, a stirring component is provided inside the housing, and an air extraction component is provided on the housing; The purification component includes a water inlet pipe, a water delivery pipe is fixedly connected to the housing, a connecting pipe is fixedly connected to the inner wall of the housing, the outer wall of the connecting pipe is fixedly communicated with the bottom of the water delivery pipe, a communicating pipe is fixedly communicated with the connecting pipe, a spray head is fixedly communicated with the outer wall of the communicating pipe, an air delivery pipe is fixedly connected to the side wall of the housing, an air outlet pipe is fixedly communicated with the bottom outer wall of the air delivery pipe, a partition plate is fixedly connected to the inner wall of the housing, and a water outlet pipe is fixedly communicated with the bottom of the housing.

[0006] As a preferred embodiment, the air intake assembly includes an air inlet pipe fixedly connected to the side wall of the housing. One end of the air inlet pipe is fixedly communicated with the top end of the air delivery pipe. An air intake fan is arranged on the inner wall of the air inlet pipe. An opening is formed in the air inlet pipe. A baffle is rotatably connected to the outer wall of the air inlet pipe. One end of the inner wall of the air inlet pipe away from the air intake fan is fixedly communicated with a gas collection frame.

[0007] The beneficial effect of adopting the above further scheme is that by arranging the air intake assembly, air is conveyed into the housing.

[0008] As a preferred embodiment, the opening and closing assembly includes a motor fixedly connected to the top of the housing. A reciprocating lead screw is fixedly connected to the rotating shaft of the motor. A sliding plate is threadedly connected to the outer wall of the bottom of the reciprocating lead screw. The sliding plate is slidably connected to the partition plate. A connecting plate is fixedly connected to the bottom of the sliding plate. A closing rod is fixedly connected to the top of the connecting plate. A closing ring is fixedly connected to the inner wall of the air delivery pipe. A sealing plate is fixedly connected to the top of the sliding plate.

[0009] The beneficial effect of adopting the above further scheme is that by arranging the opening and closing assembly, the contact time can be extended to enable the disinfectant to fully react with the germs in the air.

[0010] As a preferred embodiment, the stirring assembly includes a rack fixedly connected to the side wall of the sliding plate. A stirring plate is rotatably connected to the inner wall of the housing. A gear is fixedly connected to one end of the stirring plate close to the sliding plate. The gear and the rack are meshed through teeth.

[0011] The beneficial effect of adopting the above further scheme is that by arranging the stirring assembly, the air inside the housing is stirred.

[0012] As a preferred embodiment, the air extraction assembly includes an air extraction pipe fixedly communicated with the side wall of the housing. A first guide member is fixedly connected to the inner wall of the air extraction pipe. An air extraction fan is fixedly connected to the inner wall of the air extraction pipe. A through hole is formed in the air extraction pipe.

[0013] The beneficial effect of adopting the above further scheme is that by arranging the air extraction assembly, the disinfected gas inside the housing is quickly discharged.

[0014] As a preferred embodiment, a water storage bucket is fixedly connected to the top of the housing. The bottom end of the air inlet pipe is fixedly communicated with the top of the water storage bucket. The outer wall of the water storage bucket is fixedly communicated with the top end of the air delivery pipe.

[0015] The beneficial effect of adopting the above further scheme is that by arranging the water storage bucket, the disinfectant is stored and buffered briefly.

[0016] As a preferred embodiment, a second guiding member is fixedly connected to the inner wall of the air delivery pipe.

[0017] The beneficial effect of adopting the above further solution is that by arranging the second guiding member, the guiding of the gas is realized. As a preferred embodiment, a protective pipe is fixedly connected to the top of the sliding plate, and a sealing pipe is fixedly connected to the inner top wall of the outer shell, and the inner wall of the sealing pipe fits with the outer wall of the protective pipe.

[0018] The beneficial effect of adopting the above further solution is that by arranging the sealing pipe and the protective pipe, the protection of the reciprocating lead screw is realized.

[0019] As a preferred embodiment, a heating wire is arranged at one end of the air extraction pipe far from the first guiding member.

[0020] The beneficial effect of adopting the above further solution is that by arranging the heating wire, the drying of the air is realized.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. By arranging the purification component, the air is purified and disinfected, thereby effectively killing various germs in the air, reducing the transmission risk of infectious diseases, and providing a healthier living and working environment for people. At the same time, by arranging the stirring component, stirring the air can make the disinfectant liquid more evenly distributed in the disinfection chamber, thereby increasing the mixing efficiency of the air and the disinfectant liquid, allowing the two to react faster. And when purifying the air, by arranging the opening and closing component, extending the contact time can make the disinfectant liquid fully react with the germs in the air, enabling more germs to be affected by the disinfectant, so as to more effectively kill the germs.

[0022] 2. By arranging the air inlet component, the air is conveyed into the inner part of the outer shell. By continuously conveying the air into the inner part of the outer shell, the air in the ward is continuously circulated, forming a good cycle. During the air circulation process, not only can the air containing germs after disinfection be discharged in time, but also the harmful gases that may be generated can be removed more quickly.

[0023] 3. By arranging the air extraction component, the disinfected gas inside the outer shell can be quickly discharged, thereby avoiding the possible re - suspension of the germ residues and the like inside the outer shell in the air, or the possible adverse effects of the disinfectant residues on the indoor items and human health. Efficient exhaust can reduce the possibility of these substances accumulating indoors and reduce the risk of secondary pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an air purification and germ killing device for an intensive care unit according to the present invention. Figure 2Schematic diagram of the structure at the water inlet pipe of an air purification and germ disinfection device for an intensive care unit according to the present invention; Figure 3 Schematic diagram of the structure at the air delivery pipe of an air purification and germ disinfection device for an intensive care unit according to the present invention; Figure 4 Schematic diagram of the structure at the motor of an air purification and germ disinfection device for an intensive care unit according to the present invention; Figure 5 Schematic diagram of the structure at the closing rod of an air purification and germ disinfection device for an intensive care unit according to the present invention; Figure 6 Schematic diagram of the structure at the stirring plate outlet of an air purification and germ disinfection device for an intensive care unit according to the present invention; Figure 7 Schematic diagram of the structure at the air intake fan of an air purification and germ disinfection device for an intensive care unit according to the present invention; Figure 8 Schematic diagram of the structure at the air extraction pipe of an air purification and germ disinfection device for an intensive care unit according to the present invention.

[0025] Legend description: 1. Outer shell; 2. Air intake assembly; 201. Air intake pipe; 202. Air intake fan; 203. Through hole; 204. Baffle; 205. Air collecting frame; 3. Purification assembly; 301. Water inlet pipe; 302. Water delivery pipe; 303. Connecting pipe; 304. Communicating pipe; 305. Sprinkler head; 306. Air delivery pipe; 307. Air outlet pipe; 4. Opening and closing assembly; 401. Motor; 402. Reciprocating lead screw; 403. Sliding plate; 404. Connecting plate; 405. Closing rod; 406. Closing ring; 407. Sealing plate; 5. Stirring assembly; 501. Rack; 502. Stirring plate; 503. Gear; 6. Air extraction assembly; 601. Air extraction pipe; 602. First guiding member; 603. Air extraction fan; 604. Through hole; 7. Partition plate; 8. Water outlet pipe; 9. Water storage bucket; 10. Second guiding member; 11. Sealing pipe; 12. Protective pipe; 13. Heating wire. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 shown, the present invention provides a technical solution: an air purification and germ disinfection device for an intensive care unit, including a housing 1, an air intake component 2 is provided on the housing 1; the air intake component 2 is used to intake air into the housing 1, a purification component 3 is provided on the housing 1, the purification component 3 is used to purify the incoming gas, an opening and closing component 4 is provided inside the housing 1, the opening and closing component 4 is used to release the gas and liquid inside the housing 1 at regular intervals, a stirring component 5 is provided inside the housing 1, the stirring component 5 is used to stir the disinfectant liquid and gas inside the housing 1, an air extraction component 6 is provided on the housing 1; the air extraction component 6 is used to facilitate the escape of the gas inside the housing 1, the purification component 3 includes a water inlet pipe 301, the water inlet pipe 301 is used to connect to an external pipeline, a water delivery pipe 302 is fixedly connected to the housing 1, a connecting pipe 303 is fixedly connected to the inner wall of the housing 1, the water delivery pipe 302 is used to transfer the disinfectant liquid inside the water inlet pipe 301 to the inside of the connecting pipe 303, the outer wall of the connecting pipe 303 is fixedly connected and communicated with the bottom of the water delivery pipe 302, a communicating pipe 304 is fixedly connected and communicated with the connecting pipe 303, the communicating pipe 304 is used to transport the liquid inside the connecting pipe 303, a spray head 305 is fixedly connected to the outer wall of the communicating pipe 304, the spray head 305 is used to spray the disinfectant liquid, so as to disinfect the liquid inside the housing 1, a gas delivery pipe 306 is fixedly connected to the side wall of the housing 1, the gas delivery pipe 306 is used to transmit the air inside the ward, an air outlet pipe 307 is fixedly connected and communicated with the bottom outer wall of the gas delivery pipe 306, the air outlet pipe 307 is used to release the air inside the gas delivery pipe 306, so as to facilitate disinfection, a partition plate 7 is fixedly connected to the inner wall of the housing 1, the partition plate 7 is used to divide the space inside the housing 1 into two parts, a water outlet pipe 8 is fixedly connected and communicated with the bottom of the housing 1, the water outlet pipe 8 is used to release the liquid inside the housing 1, so as to facilitate the subsequent treatment of the disinfectant liquid.

[0028] Referring to Figure 4 and Figure 7, the intake assembly 2 includes an intake pipe 201 fixedly connected to the side wall of the housing 1. One end of the intake pipe 201 is fixedly communicated with the top end of the air delivery pipe 306. The intake pipe 201 is used to introduce the air in the ward into the interior of the air delivery pipe 306. An intake fan 202 is arranged on the inner wall of the intake pipe 201, and the intake fan 202 is used to extract the air in the ward. An opening 203 is opened on the intake pipe 201, and a baffle 204 is rotatably connected to the outer wall of the intake pipe 201. The combined use of the opening 203 and the baffle 204 can prevent the intake fan 202 from being damaged due to continuous gas delivery when the air delivery pipe 306 is closed. A gas collection frame 205 is fixedly communicated with the end of the inner wall of the intake pipe 201 away from the intake fan 202, and the gas collection frame 205 is used to centrally deliver the air extracted by the intake fan 202.

[0029] Refer to Figure 1 and Figure 4 , the opening and closing assembly 4 includes a motor 401 fixedly connected to the top of the housing 1. A reciprocating lead screw 402 is fixedly connected to the rotating shaft of the motor 401, and the motor 401 is used to realize the rotation of the reciprocating lead screw 402. A sliding plate 403 is threadedly connected to the outer wall at the bottom of the reciprocating lead screw 402. The rotation of the reciprocating lead screw 402 will drive the sliding plate 403 to move up and down reciprocally. The sliding plate 403 is slidably connected to the partition plate 7. A connecting plate 404 is fixedly connected to the bottom of the sliding plate 403, and a closing rod 405 is fixedly connected to the top of the connecting plate 404. The connecting plate 404 is used to link the sliding plate 403 and the closing rod 405 together, so that the movement of the sliding plate 403 drives the closing rod 405 to move. A closing ring 406 is fixedly connected to the inner wall of the air delivery pipe 306. The combined use of the closing rod 405 and the closing ring 406 can close the air delivery pipe 306 to prevent gas leakage. A sealing plate 407 is fixedly connected to the top of the sliding plate 403, and a hole is opened on the sealing plate 407. By moving the sealing plate 407 up and down, the hole on the sealing plate 407 can be briefly communicated with the hole on the housing 1, so that the gas inside the housing 1 flows out.

[0030] Refer to Figure 4 and Figure 5 , the stirring assembly 5 includes a rack 501 fixedly connected to the side wall of the sliding plate 403. A stirring plate 502 is rotatably connected to the inner wall of the housing 1, and the stirring plate 502 is used to stir the air and disinfectant inside the housing 1, so as to increase the full contact between the germs carried in the air and the active ingredients in the disinfectant and accelerate the inactivation process of the germs. A gear 503 is fixedly connected to one end of the stirring plate 502 close to the sliding plate 403, and the gear 503 is meshed with the rack 501 through teeth. The meshing of the gear 503 and the rack 501 enables the up and down movement of the sliding plate 403 to drive the stirring plate 502 to rotate.

[0031] Refer to Figure 1 andFigure 8 The air extraction assembly 6 includes an air extraction pipe 601 fixedly communicated with the side wall of the housing 1. A first guide member 602 is fixedly connected to the inner wall of the air extraction pipe 601. The air extraction pipe 601 is used to fix the first guide member 602, and the first guide member 602 is used to guide the gas and facilitate the return of the outside air to the inside of the housing 1, thereby avoiding affecting the air purification and disinfection. An air extraction fan 603 is fixedly connected to the inner wall of the air extraction pipe 601. The air extraction fan 603 is used to extract the gas, so as to accelerate the escape of the purified gas inside the housing 1. A through hole 604 is opened on the air extraction pipe 601. The through hole 604 is used to prevent the air extraction fan 603 from being difficult to pump when one end of the air extraction pipe 601 is closed, thereby avoiding damage to the air extraction fan 603.

[0032] Refer to Figure 2 and Figure 3 A water storage bucket 9 is fixedly connected to the top of the housing 1. The bottom end of the water inlet pipe 301 is fixedly communicated with the top of the water storage bucket 9. The outer wall of the water storage bucket 9 is fixedly communicated with the top end of the water delivery pipe 302. The water storage bucket 9 is used to realize the short-term storage and buffering of the disinfectant, so as to ensure that there is enough disinfectant available at any time, avoid the interruption of the disinfection work due to the untimely supply of the disinfectant, and ensure the continuity and stability of the air purification and germ disinfection process.

[0033] Refer to Figure 4 A second guide member 10 is fixedly connected to the inner wall of the air delivery pipe 306. The second guide member 10 is used to guide the gas, avoid the reflux of the disinfected gas to the disinfection area, prevent the germs that have been killed or removed from entering the disinfection chamber again with the reflux gas, thereby ensuring the disinfection effect and maintaining the air cleanliness in the disinfection chamber, and providing a continuous safe air environment for relevant places.

[0034] Refer to Figure 4 A protective pipe 12 is fixedly connected to the top of the sliding plate 403. A sealing pipe 11 is fixedly connected to the inner top wall of the housing 1. The inner wall of the sealing pipe 11 fits with the outer wall of the protective pipe 12. The combined use of the sealing pipe 11 and the protective pipe 12 can protect the reciprocating lead screw 402, thereby avoiding the contact of water vapor with the reciprocating lead screw 402, preventing rust, maintaining the accuracy and surface quality of the reciprocating lead screw 402, and thus extending its service life.

[0035] Refer to Figure 8 A heating wire 13 is arranged at one end of the air extraction pipe 601 away from the first guide member 602. The heating wire 13 is used to dry the air, thereby avoiding the high air humidity and the possibility that the remaining microorganisms may still grow in a suitable environment and pollute the air again.

[0036] Working principle: As Figure 1 、 Figure 2, Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown in Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , for the air purification and germ disinfection device in the intensive care unit, when air purification and disinfection are required, the intake fan 202 can extract the air inside the ward and transfer it to the inside of the housing 1 through the air collection frame 205, the air delivery pipe 306 and the air outlet pipe 307. When the air is extracted, the water inlet pipe 301 sprays the external disinfectant into the inside of the housing 1 through the water delivery pipe 302, the connecting pipe 303, the communicating pipe 304 and the nozzle 305, so as to disinfect and purify the air. When disinfecting and purifying the air, the motor 401 drives the reciprocating lead screw 402 to rotate. The rotation of the reciprocating lead screw 402 drives the sliding plate 403, the connecting plate 404, the closing rod 405 and the sealing plate 407 to move up and down reciprocally. The movement of the closing rod 405 and the cooperation with the closing ring 406 can close the air delivery pipe 306, thus pausing the transmission of air through the air delivery pipe 306. At the same time, the up and down movement of the sealing plate 407 makes the holes on the sealing plate 407 communicate with the holes on the housing 1. At this time, the gas inside the housing 1 will flow out quickly under the action of the exhaust fan 603, so as to realize the release of the gas inside the housing 1. When the sliding plate 403 rises again, the holes on the partition plate 7 will be exposed. At this time, the disinfectant will flow to the lower part of the partition plate 7 and flow into the subsequent treatment steps through the water outlet pipe 8.

[0037] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. An air purification and germ killing device for an intensive care unit, comprising a housing (1), characterized in that: An air intake assembly (2) is provided on the housing (1); a purification assembly (3) is provided on the housing (1), an opening and closing assembly (4) is provided inside the housing (1), a stirring assembly (5) is provided inside the housing (1), and an air extraction assembly (6) is provided on the housing (1). The purification assembly (3) includes a water inlet pipe (301), a water delivery pipe (302) is fixedly connected to the housing (1), a connecting pipe (303) is fixedly connected to the inner wall of the housing (1), the outer wall of the connecting pipe (303) is fixedly communicated with the bottom of the water delivery pipe (302), a communicating pipe (304) is fixedly communicated with the connecting pipe (303), a spray head (305) is fixedly communicated with the outer wall of the communicating pipe (304), an air delivery pipe (306) is fixedly connected to the side wall of the housing (1), an air outlet pipe (307) is fixedly communicated with the bottom outer wall of the air delivery pipe (306), a partition plate (7) is fixedly connected to the inner wall of the housing (1), and a water outlet pipe (8) is fixedly communicated with the bottom of the housing (1).

2. The air purification and germ killing device for the intensive care unit according to claim 1, wherein: The air intake assembly (2) includes an air inlet pipe (201) fixedly connected to the side wall of the housing (1), one end of the air inlet pipe (201) is fixedly communicated with the top end of the air delivery pipe (306), an air intake fan (202) is arranged on the inner wall of the air inlet pipe (201), a through opening (203) is opened on the air inlet pipe (201), a baffle (204) is rotatably connected to the outer wall of the air inlet pipe (201), and a gas collecting frame (205) is fixedly communicated with the end of the inner wall of the air inlet pipe (201) away from the air intake fan (202).

3. The air purification and germ killing device for intensive care unit according to claim 1, characterized in that: The opening and closing assembly (4) includes a motor (401) fixedly connected to the top of the housing (1), a reciprocating lead screw (402) is fixedly connected to the rotating shaft of the motor (401), a sliding plate (403) is threadedly connected to the bottom outer wall of the reciprocating lead screw (402), the sliding plate (403) is slidably connected to the partition plate (7), a connecting plate (404) is fixedly connected to the bottom of the sliding plate (403), a closing rod (405) is fixedly connected to the top of the connecting plate (404), a closing ring (406) is fixedly connected to the inner wall of the air delivery pipe (306), and a sealing plate (407) is fixedly connected to the top of the sliding plate (403).

4. An air purification and germ disinfection device for an intensive care unit according to claim 1, characterized in that: The stirring assembly (5) includes a rack (501) fixedly connected to the side wall of the sliding plate (403), a stirring plate (502) is rotatably connected to the inner wall of the housing (1), a gear (503) is fixedly connected to the end of the stirring plate (502) close to the sliding plate (403), and the gear (503) is meshed with the rack (501) through teeth.

5. The air purification and germ killing device for the intensive care unit according to claim 1, characterized in that: The air extraction assembly (6) includes an air extraction pipe (601) fixedly communicated with the side wall of the housing (1), a first guide member (602) is fixedly connected to the inner wall of the air extraction pipe (601), an air extraction fan (603) is fixedly connected to the inner wall of the air extraction pipe (601), and a through hole (604) is opened on the air extraction pipe (601).

6. The air purification and germ killing device for the intensive care unit according to claim 1, characterized in that: A water storage bucket (9) is fixedly connected to the top of the outer shell (1). The bottom end of the water inlet pipe (301) is fixedly communicated with the top of the water storage bucket (9), and the outer wall of the water storage bucket (9) is fixedly communicated with the top end of the water delivery pipe (302).

7. An air purification and germ disinfection device for an intensive care unit according to claim 1, characterized in that: A second guide member (10) is fixedly connected to the inner wall of the air delivery pipe (306).

8. The air purification and germ killing device for the intensive care unit according to claim 4, wherein: A protective pipe (12) is fixedly connected to the top of the sliding plate (403). A sealing pipe (11) is fixedly connected to the inner top wall of the outer shell (1), and the inner wall of the sealing pipe (11) fits against the outer wall of the protective pipe (12).

9. The air purification and germ killing device for the intensive care unit according to claim 5, characterized in that: A heating wire (13) is provided at one end of the air extraction pipe (601) away from the first guide member (602).