Medical odor-removing air filter

Abstract

This utility model discloses a medical odor-controlling air filter, relating to the field of air filter technology. The utility model includes a housing, with an intermittent air intake component on the top of the housing, and an air intake pipe fixedly connected to the top of the intermittent air intake component. This utility model features a multi-layered, high-efficiency filtration structure. The primary filter layer uses a non-woven fabric material with large pores, effectively filtering large particles of dust, hair, and other impurities from the air, providing initial purification and protecting subsequent filter layers. The activated carbon filter layer removes odors and some harmful gases from the air, improving the odor environment. The HEPA filter layer removes fine particulate matter from the air, ensuring air cleanliness. The photocatalytic coating uses an ultraviolet lamp for catalytic decomposition, further removing harmful gases from the air. Through the synergistic effect of multiple filtration methods, deep purification of the air in the medical room is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of air filter technology, and in particular relates to a medical odor-removing air filter. Background Technology

[0002] In a medical environment, maintaining clean and odor-free air is crucial. Various odors are generated during medical procedures, such as the smell emitted by patients, the smell of volatile drugs, and the special smells produced during surgery. At the same time, the air in a medical environment also contains a large number of pollutants such as particulate matter, bacteria, viruses, and volatile organic compounds (VOCs). These pollutants not only affect the comfort of medical staff and patients, but may also pose a serious threat to human health.

[0003] Currently, there are various medical odor control air filters on the market. However, these existing air filters generally suffer from the problem of limited filtration effectiveness. Most filters can only filter one or a few pollutants and cannot effectively remove multiple pollutants such as particulate matter, bacteria, viruses, VOCs, and odors at the same time. In addition, existing medical odor control air filters also have defects in structural design. The common gas direct flow filtration method results in a short residence time of gas in the filter, leading to incomplete filtration.

[0004] To address these issues, we provide a medical odor-controlling air filter. Utility Model Content

[0005] The purpose of this invention is to provide a medical odor-controlling air filter. By combining multiple filtration components and intermittent air intake components, it solves the problem that existing air filters have simple filtration structures and cannot effectively remove multiple pollutants from the air at the same time.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a medical odor-controlling air filter, comprising a housing, an intermittent air intake assembly at the top of the housing, an air intake pipe fixedly connected to the top of the intermittent air intake assembly, a multi-stage filtration assembly within the housing, the multi-stage filtration assembly including a layered frame, the surface of the layered frame being fixedly connected to the inner wall of the housing, a spacer frame fixedly connected to the bottom of the layered frame, a diverter frame fixedly connected to the bottom of the spacer frame, a pre-filter layer within the inner cavity of the layered frame, an activated carbon filter layer within the inner cavity of the spacer frame, a HEPA filter layer within the inner cavity of the diverter frame, a partition fixedly connected to the bottom of the diverter frame, a photocatalytic filter layer within the inner cavity of the partition, and an ultraviolet lamp fixedly connected to the bottom of one side of the inner cavity of the housing. Guide rails are fixedly connected to both sides of the bottom of the layered frame, spacer frame, and diverter frame, and mounting plates are movably connected to the inner cavities of the guide rails.

[0008] The present invention is further configured such that the intermittent air intake assembly includes a housing, the bottom of which is fixedly connected to the top of the outer shell. A motor is fixedly connected to the rear side of the inner cavity of the housing, and a cam is fixedly connected to the output shaft of the motor. An air intake cylinder is movably connected to one side of the inner cavity of the housing, and a sealing disc is fixedly connected to the top of one side of the air intake cylinder. A movable frame is fixedly connected to the other side of the air intake cylinder, and a fixing plate is fixedly connected to one side of the top of the movable frame. A spring is fixedly connected to one side of the fixing plate. One side of the cam contacts the surface of the movable frame. When the motor is turned on, the output shaft of the motor drives the cam to rotate. When the cam rotates, its protruding part intermittently contacts the movable frame. With the cooperation of the spring, the movable frame moves laterally back and forth. The movable frame drives the air intake cylinder to move back and forth. When the air intake cylinder moves to the bottom of the air intake pipe, the air in the medical room enters the inner cavity of the outer shell through the air intake cylinder. When the air intake cylinder moves away from the bottom of the air intake pipe, the sealing disc on one side of the air intake cylinder blocks the air intake pipe, thereby allowing the air in the medical room to intermittently enter the inner cavity of the outer shell.

[0009] The present invention is further configured such that a limiting groove is provided at the bottom of the inner cavity of the housing, and a limiting wheel is fixedly connected to the bottom of the movable frame. The bottom of the limiting wheel contacts the bottom of the inner cavity of the limiting groove. The limiting wheel moves with the movable frame in the inner cavity of the limiting groove. The limiting structure composed of the limiting wheel and the limiting groove restricts the movement range of the movable frame and improves the movement stability of the movable frame.

[0010] The present invention is further configured such that a groove is provided on one side of the movable frame, and a movable roller is movably connected to the inner cavity of the groove. One side of the movable roller contacts the surface of the cam. When the protruding part of the cam approaches the movable frame, it will contact the movable roller on one side of the movable frame. The movable roller can reduce the friction between the surface of the cam and the surface of the movable frame, thereby reducing the wear of both.

[0011] The present invention is further configured such that a fastening bolt is provided on one side of the guide rail, and one end of the fastening bolt is threadedly connected to a threaded hole on one side of the mounting plate. By tightening the fastening bolt until it passes through the guide rail and is screwed into the threaded hole on one side of the mounting plate, the mounting plate can be fixed in the inner cavity of the guide rail and the subsequent disassembly of the mounting plate can be facilitated.

[0012] The present invention is further provided that a cover plate is provided on the front side of the outer shell, and a sealing strip is fixedly connected to the edge of the surface of the cover plate. The cover plate can seal the inner cavity of the outer shell and is easy to disassemble. After the cover plate is disassembled, the components in the inner cavity of the outer shell can be inspected and maintained.

[0013] The present invention is further configured such that an air outlet hopper is fixedly connected to one side of the partition, an exhaust pipe is provided on one side of the air outlet hopper, and an installation plate is fixedly connected to the end of the exhaust pipe away from the air outlet hopper. The connection method between the installation plate and the external pipe is simple, so that the filtered and purified gas can be quickly discharged into the external ventilation duct and re-enter the medical room.

[0014] The present invention is further configured such that mounting brackets are fixedly connected to the top and bottom of one side of the housing, and mounting holes are provided on the surface of the mounting brackets. Mounting screws are passed through the mounting holes on the surface of the mounting brackets and screwed into the designated mounting surface, thereby installing and fixing the air filter in the designated use position.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model has a multi-layer high-efficiency filtration structure. The primary filter layer is made of non-woven fabric with large pore size, which can effectively filter large particles of dust, hair and other impurities in the air, playing a role in preliminary purification and protecting the subsequent filter layers. The activated carbon filter layer can remove odors and some harmful gases in the air and improve the air odor environment. The HEPA filter layer can remove fine particulate matter in the air and ensure air cleanliness. The photocatalytic coating uses ultraviolet lamps for catalytic decomposition to further remove harmful gases in the air. Through the synergistic effect of multiple filtration methods, deep purification of air in the medical room is achieved.

[0017] 2. This utility model, through a unique mechanical structure design, uses a motor to drive a cam to rotate, which, in conjunction with a spring, causes the movable frame and air inlet cylinder to move laterally back and forth, enabling intermittent air entry into the inner cavity of the casing. This design can effectively control the rhythm of air entry, and compared to continuous air intake, it can improve the filtration effect to a certain extent, avoiding insufficient filtration due to excessively rapid air intake. The orderly entry of air into the filter for processing improves the stability and reliability of the equipment operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional view of a medical odor-controlling air filter.

[0020] Figure 2 This is a cross-sectional schematic diagram of a medical odor-controlling air filter.

[0021] Figure 3 A medical odor-removing air filter Figure 2 A magnified view of a portion of point A in the middle.

[0022] Figure 4 This is a cross-sectional schematic diagram of the housing of a medical odor-controlling air filter.

[0023] Figure 5 A medical odor-removing air filter Figure 4 A partially enlarged schematic diagram at point B. In the attached diagram: 1. Outer casing; 2. Intermittent air intake assembly; 3. Air intake pipe; 4. Multi-stage filtration assembly; 401. Layered rack; 402. Spacing rack; 403. Diverter rack; 404. Primary filter layer; 405. Activated carbon filter layer; 406. HEPA filter layer; 407. Partition plate; 408. Photocatalytic filter layer; 409. Ultraviolet lamp; 410. Guide rail; 411. Mounting plate; 201. Housing; 202. Motor; 203. Cam; 204. Air intake cylinder; 205. Sealing plate; 206. Movable frame; 207. Fixed plate; 208. Spring; 5. Air outlet; 6. Exhaust pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figure 1-5This utility model relates to a medical odor-controlling air filter, comprising a housing 1, an intermittent air intake assembly 2 on the top of the housing 1, an air intake pipe 3 fixedly connected to the top of the intermittent air intake assembly 2, a multi-stage filtration assembly 4 within the inner cavity of the housing 1, the multi-stage filtration assembly 4 including a layered frame 401, the surface of the layered frame 401 fixedly connected to the inner wall of the housing 1, a spacer frame 402 fixedly connected to the bottom of the layered frame 401, a diverter frame 403 fixedly connected to the bottom of the spacer frame 402, and a flow divider 403 within the inner cavity of the layered frame 401. The pre-filter layer 404 and the inner cavity of the spacer 402 are provided with activated carbon filter layer 405. The inner cavity of the diverter 403 is provided with HEPA filter layer 406. The bottom of the diverter 403 is fixedly connected with partition plate 407. The inner cavity of partition plate 407 is provided with photocatalytic filter layer 408. An ultraviolet lamp 409 is fixedly connected to the bottom of one side of the inner cavity of the outer shell 1. The bottom sides of the layer rack 401, spacer 402 and diverter 403 are all fixedly connected with guide rails 410. The inner cavity of the guide rails 410 is movably connected with mounting plate 411.

[0027] Specifically: After the air passes through the interference of the intermittent components, it intermittently enters the inner cavity of the outer shell 1. When the air passes through the primary filter layer 404, which is made of non-woven fabric with a large pore size, it is mainly used to filter large particles of dust, hair and other impurities in the air. The filtered air continues to pass through the activated carbon filter layer 405, the HEPA filter layer 406 and the photocatalytic filter layer 408 in sequence. The activated carbon filter layer 405 removes odors and some harmful gases from the air, the HEPA filter layer 406 removes fine particulate matter from the air, and the photocatalytic coating is catalytically decomposed by the ultraviolet lamp 409 to further remove harmful gases from the air.

[0028] Example 2

[0029] Please see Figure 1-5Based on Embodiment 1, the intermittent air intake assembly 2 includes a housing 201. The bottom of the housing 201 is fixedly connected to the top of the outer casing 1. A motor 202 is fixedly connected to the rear side of the inner cavity of the housing 201. A cam 203 is fixedly connected to the output shaft of the motor 202. An air intake cylinder 204 is movably connected to one side of the inner cavity of the housing 201. A sealing disc 205 is fixedly connected to the top of one side of the air intake cylinder 204. A movable frame 206 is fixedly connected to the other side of the air intake cylinder 204. A fixing plate 207 is fixedly connected to one side of the top of the movable frame 206. A spring 208 is fixedly connected to one side of the fixing plate 207. One side of the cam 203 contacts the surface of the movable frame 206. A limit groove is formed at the bottom of the inner cavity of the housing 201. A limiting wheel is fixedly connected to the bottom of the 206, and the bottom of the limiting wheel contacts the bottom of the limiting groove cavity. A groove is provided on one side of the movable frame 206, and a movable roller is movably connected to the inner cavity of the groove. One side of the movable roller contacts the surface of the cam 203. A fastening bolt is provided on one side of the guide rail 410, and one end of the fastening bolt is threadedly connected to the threaded hole on one side of the mounting plate 411. A cover plate is provided on the front of the outer shell 1, and a sealing strip is fixedly connected to the edge of the cover plate surface. An air outlet 5 is fixedly connected to one side of the partition plate 407, and an exhaust pipe 6 is provided on one side of the air outlet 5. A mounting plate is fixedly connected to the end of the exhaust pipe 6 away from the air outlet 5. Mounting brackets are fixedly connected to the top and bottom of one side of the outer shell 1, and mounting holes are provided on the surface of the mounting brackets.

[0030] Specifically: When motor 202 is turned on, the output shaft of motor 202 drives cam 203 to rotate. When cam 203 rotates, its protruding part intermittently contacts movable frame 206. With the cooperation of spring 208, movable frame 206 moves laterally back and forth. Movable frame 206 drives air inlet cylinder 204 to move back and forth. When air inlet cylinder 204 moves below air inlet pipe 3, air from the medical room enters the inner cavity of outer shell 1 through air inlet cylinder 204. When air inlet cylinder 204 moves away from the position below air inlet pipe 3, sealing disc 205 on one side of air inlet cylinder 204 blocks air inlet pipe 3, thereby allowing air from the medical room to intermittently enter the inner cavity of outer shell 1. Limiting wheel moves with movable frame 206 in the inner cavity of limiting groove. The limiting structure composed of limiting wheel and limiting groove limits the movement range of movable frame 206 and can improve the movement stability of movable frame 206. When the protruding part of 203 approaches the movable frame 206, it will contact the movable roller on one side of the movable frame 206. The movable roller can reduce the friction between the surface of cam 203 and the surface of movable frame 206, reducing the wear of both. Tightening the fastening bolt until it passes through the guide rail 410 and is screwed into the threaded hole on one side of the mounting plate 411 can fix the mounting plate 411 in the inner cavity of the guide rail 410 and facilitate the subsequent disassembly of the mounting plate 411. The cover plate can seal the inner cavity of the outer shell 1 and is easy to disassemble. After the cover plate is removed, the components in the inner cavity of the outer shell 1 can be inspected and maintained. The connection between the mounting plate and the external pipe is simple, so that the filtered and purified gas can be quickly discharged into the external ventilation duct and re-enter the medical room. The mounting screw is passed through the mounting hole on the surface of the mounting frame and screwed into the designated mounting surface, thereby installing and fixing the air filter in the designated use position.

[0031] The working principle of this utility model is as follows: The air inlet pipe 3 and exhaust pipe 6 of the air filter are connected to an external ventilation duct. An external fan draws air from the medical room into the inner cavity of the housing 201. At the same time, the motor 202 is turned on. The output shaft of the motor 202 drives the cam 203 to rotate. When the cam 203 rotates, its protruding part intermittently contacts the movable frame 206. With the cooperation of the spring 208, the movable frame 206 moves laterally back and forth. The movable frame 206 drives the air inlet cylinder 204 to move back and forth. When the air inlet cylinder 204 moves below the air inlet pipe 3, the air from the medical room enters the inner cavity of the housing 1 through the air inlet cylinder 204. When the air inlet cylinder 204 moves away from the position below the air inlet pipe 3, the air inlet cylinder 204... One side of the sealing disc 205 blocks the air inlet pipe 3, thereby allowing medical room air to intermittently enter the inner cavity of the outer shell 1. When the intermittently entering air passes through the primary filter layer 404 in the inner cavity of the outer shell 1, the primary filter layer 404 is made of non-woven fabric with a large pore size, which is mainly used to filter large particles of dust, hair and other impurities in the air. The filtered air continues to pass through the activated carbon filter layer 405, the HEPA filter layer 406 and the photocatalytic filter layer 408 in sequence. The activated carbon filter layer 405 removes odors and some harmful gases in the air, the HEPA filter layer 406 removes fine particulate matter in the air, and the photocatalytic coating is catalytically decomposed by the ultraviolet lamp 409 to further remove harmful gases in the air.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. An air filter for medical use for the treatment of malodours, comprising a casing (1), characterised in that: An intermittent air intake assembly (2) is provided on the top of the outer shell (1), and an air intake pipe (3) is fixedly connected to the top of the intermittent air intake assembly (2). A multi-filter assembly (4) is provided in the inner cavity of the outer shell (1). The multi-stage filtration assembly (4) includes a layered frame (401), the surface of which is fixedly connected to the inner wall of the outer shell (1). A spacer frame (402) is fixedly connected to the bottom of the layered frame (401), and a diverter frame (403) is fixedly connected to the bottom of the spacer frame (402). A primary filter layer (404) is provided in the inner cavity of the layered frame (401), and an activated carbon filter layer (405) is provided in the inner cavity of the spacer frame (402). The inner cavity of the diverter frame (403) is... The HEPA filter layer (406) is provided, and a partition (407) is fixedly connected to the bottom of the diverter (403). A photocatalytic filter layer (408) is provided in the inner cavity of the partition (407). An ultraviolet lamp (409) is fixedly connected to the bottom of one side of the inner cavity of the outer shell (1). Guide rails (410) are fixedly connected to both sides of the bottom of the layer rack (401), the spacer rack (402) and the diverter rack (403). A mounting plate (411) is movably connected to the inner cavity of the guide rail (410).

2. The medical odor-eliminating air filter of claim 1, wherein: The intermittent air intake assembly (2) includes a housing (201), the bottom of which is fixedly connected to the top of the outer shell (1). A motor (202) is fixedly connected to the rear side of the inner cavity of the housing (201). A cam (203) is fixedly connected to the output shaft of the motor (202). An air intake cylinder (204) is movably connected to one side of the inner cavity of the housing (201). A sealing disc (205) is fixedly connected to the top of one side of the air intake cylinder (204). A movable frame (206) is fixedly connected to the other side of the air intake cylinder (204). A fixing plate (207) is fixedly connected to one side of the top of the movable frame (206). A spring (208) is fixedly connected to one side of the fixing plate (207). One side of the cam (203) is in contact with the surface of the movable frame (206).

3. A medical odor-removing air filter according to claim 2, wherein: A limiting groove is provided at the bottom of the inner cavity of the housing (201), and a limiting wheel is fixedly connected to the bottom of the movable frame (206), with the bottom of the limiting wheel in contact with the bottom of the inner cavity of the limiting groove.

4. The medical odor-eliminating air filter of claim 2, wherein: A groove is provided on one side of the movable frame (206), and a movable roller is movably connected to the inner cavity of the groove. One side of the movable roller is in contact with the surface of the cam (203).

5. The medical odor-eliminating air filter of claim 1, wherein: A fastening bolt is provided on one side of the guide rail (410), and one end of the fastening bolt is threadedly connected to a threaded hole on one side of the mounting plate (411).

6. The medical odor-eliminating air filter of claim 1, wherein: The front of the outer casing (1) is provided with a cover plate, and a sealing strip is fixedly connected to the edge of the cover plate surface.

7. The medical odor-eliminating air filter of claim 1, wherein: An air outlet hopper (5) is fixedly connected to one side of the partition (407), and an exhaust pipe (6) is provided on one side of the air outlet hopper (5). An installation plate is fixedly connected to the end of the exhaust pipe (6) away from the air outlet hopper (5).

8. The medical odor-eliminating air filter of claim 1, wherein: Mounting brackets are fixedly connected to the top and bottom of one side of the outer casing (1), and mounting holes are provided on the surface of the mounting brackets.

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