Quickly detachable breathing machine filter core replacement structure

Abstract

The utility model belongs to breathing machine technical field, concretely is a kind of breathing machine filter core replacement structure of quick dismounting, including filter box;Filter box top is equipped with connecting assembly;Connecting assembly middle part is equipped with air inlet pipe;Filter box middle part is equipped with air outlet pipe;Rotary connection has rotary plate in filter box middle part;Rotary plate inboard wall is fixedly connected with placing plate;Filter core body is installed in the middle part of placing plate;Filter core body and placing plate middle part are equipped with fixed assembly;Rotary plate end is equipped with two clamping grooves;Two The clamping groove is oppositely arranged;Two adjusting grooves are arranged in the middle part of filter box;Adjusting groove and clamping groove are correspondingly arranged;Through the above structure, filter core body can be directly turned out from filter box middle part to be quickly replaced, reduce the disassembly entire filter box or complex fixing device, effectively shorten the time of filter core body replacement, realize the quick replacement of filter core body.

Description

Technical Field

[0001] This utility model belongs to the field of ventilator technology, specifically a ventilator filter replacement structure that can be quickly disassembled and installed. Background Technology

[0002] A ventilator is a medical device that mechanically assists a patient's breathing, providing temporary or long-term respiratory support.

[0003] A ventilator uses positive pressure to force oxygen or a mixture of gases into the lungs, simulating natural breathing to achieve gas exchange. A ventilator mainly consists of a main unit, an air source, and an air supply drive device. The ventilator filter effectively filters dust and bacteria from the air. After a period of use, the filter needs to be replaced with a new one.

[0004] Traditional ventilator filter boxes are located in a narrow area inside the main unit. When replacing the filter, tools or specific steps are required to disassemble and remove the filter box and multiple components, making it inconvenient to quickly remove and install the filter.

[0005] Therefore, this utility model provides a ventilator filter replacement structure that can be quickly disassembled and installed. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A quick-release ventilator filter replacement structure, comprising a filter box; a connecting assembly at the top of the filter box; an air inlet pipe installed in the middle of the connecting assembly; an air outlet pipe installed in the middle of the filter box; a rotating plate rotatably connected to the middle of the filter box; a placement plate fixedly connected to the inner side wall of the rotating plate; a filter body installed in the middle of the placement plate; a fixing assembly provided between the filter body and the placement plate; two slots opened at the end of the rotating plate; the two slots are arranged opposite to each other; two adjustment slots opened in the middle of the filter box; the adjustment slots are correspondingly arranged with the slots; and the adjustment slots are slidably connected in the middle. The filter housing includes a locking block; a sliding rod is fixedly connected to the middle of the locking block; the sliding rod is slidably connected to the middle of the filter housing; a pressure block is fixedly connected to the end of the sliding rod; a first spring is fixedly connected to the pressure block and the middle of the filter housing; two pressure blocks are respectively located at the top and bottom of the filter housing; an installation assembly is provided at the bottom of the filter housing; the above structure allows the filter element body to be directly rotated out from the middle of the filter housing for quick replacement, reducing the need to disassemble the entire filter housing or complex fixing devices, effectively shortening the time for replacing the filter element body, and realizing rapid replacement of the filter element body, making filter element body replacement easier and more convenient, while reducing the contact time between the inside of the ventilator and the external environment, thereby reducing the risk of infection and effectively improving maintenance efficiency.

[0008] Preferably, the fixing component includes multiple positioning grooves; the multiple positioning grooves are formed at the bottom of the filter element body; multiple fixing plates are fixedly connected to the middle of the placement plate; the multiple fixing plates are arranged in the middle of the corresponding positioning grooves; a fixing block is slidably connected to the middle of the fixing plate; a connecting rod is fixedly connected to the middle of the fixing block; the connecting rod is slidably connected to one side of the middle of the fixing plate; a second spring is fixedly connected to the end of the connecting rod and the side wall of the fixing plate; through the above structure, quick fixing is achieved by the fit between the fixing block and the positioning groove at the bottom of the filter element body; the multiple fixing blocks are evenly distributed around the filter element body, which can provide stable support, reduce the shaking or displacement of the filter element body after installation, maintain the filtration effect of the filter element, and reduce the difficulty of replacing the filter element body.

[0009] Preferably, the connecting assembly includes a connecting cylinder; the connecting cylinder is threadedly connected to the top of the filter box; the connecting cylinder is rotatably connected to the end of the air inlet pipe; a connecting groove is provided at the end of the connecting cylinder; a sealing ring is fixedly connected to the top of the filter element body; the sealing ring is located in the middle of the corresponding connecting groove; the above structure enables the air inlet pipe to be tightly connected to the filter element body, and the up-and-down adjustment of the connecting cylinder provides more operating space for the removal and installation of the filter element body, making the process of replacing the filter element body smoother and reducing operational difficulties caused by connection or limited space.

[0010] Preferably, the mounting assembly includes a base; the base is fixedly connected to the bottom of the filter box; a movable rod is fixedly connected to the middle of the base; a support rod is slidably connected to the middle of the movable rod; a mounting plate is fixedly connected to the end of the support rod; and multiple fastening bolts are installed in the middle of the mounting plate. This structure provides stable support for the filter box, preventing it from shaking or shifting during operation, adapting to different space requirements, and facilitating quick replacement of the filter element.

[0011] Preferably, a first sealing strip and a second sealing strip are fixedly connected to the inner wall of the filter box; the first sealing strip is fixedly connected to the top of the filter box; the second sealing strip is fixedly connected to the bottom of the filter box; the first sealing strip and the second sealing strip are arc-shaped; the first sealing strip and the second sealing strip are in contact with the inner wall of the rotating plate; the above structure enables the rotating plate and the filter box to fit tightly together, effectively reducing gas leakage from gaps, maintaining the sealing performance inside the filter box, and maintaining the filtration effect.

[0012] Preferably, a glass plate is fixedly connected to the middle of the rotating plate; the glass plate and the rotating plate are sealed together; the above structure enables personnel to promptly detect abnormalities inside the filter box, reduces the need for frequent opening of the rotating plate to inspect the filter element body, maintains the internal working condition of the filter box, reduces downtime for inspection, and improves maintenance efficiency.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The present invention provides a quick-release ventilator filter replacement structure. This structure allows for direct removal of the filter body from the center of the filter housing for quick replacement, reducing the need to disassemble the entire filter housing or complex fixing devices. This effectively shortens the time required to replace the filter body, making filter replacement easier and more convenient. It also reduces the contact time between the ventilator's interior and the external environment, thereby reducing the risk of infection and effectively improving maintenance efficiency.

[0015] 2. The quick-release ventilator filter replacement structure of this utility model achieves quick fixation by fitting the fixing blocks with the positioning groove at the bottom of the filter body. Multiple fixing blocks are evenly distributed around the filter body, which can provide stable support, reduce the shaking or displacement of the filter body after installation, maintain the filtration effect of the filter, and reduce the difficulty of filter body replacement operation. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the filter box structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the card block structure in this utility model;

[0020] Figure 4 This is a structural schematic diagram of the fixing component in this utility model;

[0021] Figure 5 This is a schematic diagram of the connecting cylinder in this utility model.

[0022] In the diagram: 1. Filter box; 10. Inlet pipe; 11. Outlet pipe; 12. Rotating plate; 13. Filter element body; 14. Placement plate; 15. Slot; 16. Adjustment slot; 17. Slide rod; 18. First spring; 19. Pressure block; 111. Slot; 2. Fixing assembly; 21. Positioning slot; 22. Fixing plate; 23. Connecting rod; 24. Second spring; 25. Fixing block; 3. Connecting assembly; 31. Connecting cylinder; 32. Connecting slot; 33. Sealing ring; 4. Mounting assembly; 41. Mounting plate; 42. Fastening bolt; 43. Support rod; 44. Moving rod; 45. Base; 5. First sealing strip; 51. Second sealing strip; 6. Glass plate. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 5 As shown in the figure, a quick-release ventilator filter replacement structure according to an embodiment of the present invention includes a filter box 1; a connecting component 3 is provided on the top of the filter box 1; an air inlet pipe 10 is installed in the middle of the connecting component 3; an air outlet pipe 11 is installed in the middle of the filter box 1; a rotating plate 12 is rotatably connected to the middle of the filter box 1; a placement plate 14 is fixedly connected to the inner side wall of the rotating plate 12; a filter body 13 is installed in the middle of the placement plate 14; a fixing component 2 is provided between the filter body 13 and the placement plate 14; two slots 15 are provided at the end of the rotating plate 12; the two slots 15 are arranged opposite to each other; two adjustment grooves 16 are provided in the middle of the filter box 1; the adjustment grooves 16 and The slot 15 is correspondingly set; the middle of the adjusting groove 16 is slidably connected to the locking block 111; the middle of the locking block 111 is fixedly connected to the slide rod 17; the slide rod 17 is slidably connected to the middle of the filter box 1; the end of the slide rod 17 is fixedly connected to the pressure block 19; the pressure block 19 is fixedly connected to the middle of the filter box 1 with the first spring 18; the two pressure blocks 19 are respectively set at the top and bottom of the filter box 1; the bottom of the filter box 1 is provided with the mounting assembly 4; during operation, the filter box 1 is installed in the designated position inside the ventilator through the mounting assembly 4. When it is necessary to remove the filter body 13, the ventilator is turned off, and the connecting assembly 3 is moved to make a moving distance with the filter body 13. First, the two... Pressing the pressure block 19 towards the center position causes the first spring 18 to elastically contract, and the slide rod 17 slides in the middle of the filter box 1. At the same time, the locking block 111 slides along the slide rod 17 at one end of the adjusting groove 16. At this time, the locking block 111 moves to one end of the slot 15, rotating the rotating plate 12 outward. The locking block 111 moves out of the slot 15. When the rotating plate 12 rotates out, the filter element body 13 is simultaneously removed from the filter box 1. The filter element body 13 is quickly removed from the middle of the placement plate 14 by the fixing component 2. Then, a new filter element body 13 is placed in the middle of the placement plate 14 and fixed by the fixing component 2. The filter box 1 is then rotated back to its original position. The locking block 111 makes the rotating plate 12 fit tightly against the filter box 1. When the connecting assembly 3 is moved, the air inlet pipe 10 seals the top of the filter body 13, thereby completing the replacement of the filter body 13. Through the above structure, the filter body 13 can be directly rotated out from the middle of the filter box 1 for quick replacement, reducing the need to disassemble the entire filter box 1 or complex fixing devices, effectively shortening the replacement time of the filter body 13, and realizing the quick replacement of the filter body 13. This makes the replacement of the filter body 13 easier and more convenient, while reducing the contact time between the inside of the ventilator and the external environment, thereby reducing the risk of infection and effectively improving maintenance efficiency.

[0025] like Figures 2 to 4As shown, the fixing assembly 2 includes multiple positioning grooves 21; the multiple positioning grooves 21 are formed at the bottom of the filter element body 13; multiple fixing plates 22 are fixedly connected to the middle of the placement plate 14; the multiple fixing plates 22 are set in the middle of the corresponding positioning grooves 21; a fixing block 25 is slidably connected to the middle of the fixing plate 22; a connecting rod 23 is fixedly connected to the middle of the fixing block 25; the connecting rod 23 is slidably connected to one side of the middle of the fixing plate 22; a second spring 24 is fixedly connected to the end of the connecting rod 23 and the side wall of the fixing plate 22; during operation, when the filter element body 13 is disassembled, the filter element body 13 is moved upward. When subjected to a certain pressure, the arc shape at the end of the fixing block 25 causes it to move into the fixing plate 22. At this time, the connected rod 23, which is pushed, slides in the middle of the fixing plate 22, and the second spring 24 generates elastic tension, thereby fixing the filter element body. 13. When quickly removing and installing the filter element body 13, move the positioning groove 21 downwards corresponding to the position of the fixing plate 22, and simultaneously squeeze the fixing block 25 to make it enter the fixing plate 22. When the bottom of the filter element body 13 is in contact with the placement plate 14, the fixing block 25, which is not under pressure, moves outwards through the second spring 24. The end of the fixing block 25 locks and fixes the bottom edge of the filter element body 13, thereby quickly installing the filter element body 13. Through the above structure, the fixing block 25 and the bottom positioning groove 21 of the filter element body 13 are matched to achieve quick fixation. Multiple fixing blocks 25 are evenly distributed around the filter element body 13, which can provide stable support, reduce the shaking or displacement of the filter element body 13 after installation, maintain the filtration effect of the filter element, and reduce the difficulty of replacing the filter element body 13.

[0026] like Figures 1 to 5 As shown, the connecting assembly 3 includes a connecting cylinder 31; the connecting cylinder 31 is threadedly connected to the top of the filter box 1; the connecting cylinder 31 is rotatably connected to the end of the air inlet pipe 10; a connecting groove 32 is provided at the end of the connecting cylinder 31; a sealing ring 33 is fixedly connected to the top of the filter element body 13; the sealing ring 33 is located in the middle of the corresponding connecting groove 32; during operation, when the filter element body 13 is removed, the connecting cylinder 31 is rotated, the air inlet pipe 10 rotates at the end of the connecting cylinder 31, and at the same time, the connecting cylinder 31 moves upward through the thread, so that the sealing ring 33 on the top of the filter element body 13 continuously moves out of the connecting groove 32. After the sealing ring 33 moves out of the connecting groove 32, the filter element body is... 13 can be removed from inside the filter box 1 for replacement. After placing the replaced filter element body 13 inside the filter box 1, rotate the connecting cylinder 31 in the opposite direction to move it downward. At this time, the sealing ring 33 enters the connecting groove 32. The sealing ring 33 and the connecting groove 32 seal the filter element body 13 and the air inlet pipe 10. The above structure can make the air inlet pipe 10 and the filter element body 13 tightly connected. The up and down adjustment of the connecting cylinder 31 can provide more operating space for the removal and installation of the filter element body 13, making the replacement process of the filter element body 13 smoother and reducing the operational difficulties caused by connection or limited space.

[0027] like Figure 1As shown, the mounting assembly 4 includes a base 45; the base 45 is fixed to the bottom of the filter box 1; a moving rod 44 is fixed to the middle of the base 45; a support rod 43 is slidably connected to the middle of the moving rod 44; a mounting plate 41 is fixed to the end of the support rod 43; multiple fastening bolts 42 are installed in the middle of the mounting plate 41; during operation, the mounting plate 41 is installed and fixed inside the ventilator by the multiple fastening bolts 42. When the filter body 13 is replaced, the filter box 1 is moved outward, so that the moving rod 44 slides from the middle of the support rod 43, thereby quickly moving the filter box 1 to a convenient operating position. The above structure can provide stable support for the filter box 1, so that the filter box 1 will not shake or shift during operation, can adapt to different space requirements, and can facilitate quick replacement of the filter body 13.

[0028] like Figure 2 and Figure 5 As shown, a first sealing strip 5 and a second sealing strip 51 are fixedly connected to the inner wall of the filter box 1; the first sealing strip 5 is fixedly connected to the top of the filter box 1; the second sealing strip 51 is fixedly connected to the bottom of the filter box 1; the first sealing strip 5 and the second sealing strip 51 are arc-shaped; the first sealing strip 5 and the second sealing strip 51 are attached to the inner wall of the rotating plate 12; during operation, after the filter element body 13 is replaced, the rotating plate 12 is closed, and the first sealing strip 5 and the second sealing strip 51 are attached to the inner wall of the rotating plate 12, sealing the gap between the rotating plate 12 and the filter box 1. Through the above structure, the rotating plate 12 and the filter box 1 can be tightly attached, effectively reducing gas leakage from the gap, maintaining the sealing performance inside the filter box 1, and maintaining the filtration effect.

[0029] like Figures 1 to 3 As shown, a glass plate 6 is fixedly connected to the middle of the rotating plate 12; the glass plate 6 and the rotating plate 12 are sealed together; during operation, after the filter body 13 has been used for a period of time, the ventilator is turned on, and the degree of contamination of the filter body 13 inside the filter box 1 can be directly observed through the glass plate 6. The above structure enables personnel to promptly detect abnormalities inside the filter box 1, reduce the frequent operation of opening the rotating plate 12 to inspect the filter body 13, maintain the working condition inside the filter box 1, reduce downtime for inspection, and improve maintenance efficiency.

[0030] like Figures 1 to 5 As shown, the surface of the filter box 1 is provided with an anti-corrosion and antibacterial coating. During operation, the filter box 1 is installed inside the ventilator. The anti-corrosion and antibacterial coating protects the filter box 1 in a humid environment for a long time. The above structure can effectively reduce the corrosion of the filter box 1 in a humid or corrosive environment, and at the same time inhibit bacteria and reduce the growth and reproduction of microorganisms on the surface of the filter box 1, effectively increasing the service life of the filter box 1.

[0031] During operation, the filter box 1 is installed in the designated position inside the ventilator using the installation component 4. When it is necessary to remove the filter body 13, the ventilator is turned off, and the connecting component 3 is moved to create a movement distance between it and the filter body 13. First, the two pressure blocks 19 are pressed towards the center position, causing the first spring 18 to elastically contract. The slide rod 17 slides in the middle of the filter box 1, and at the same time, the locking block 111 slides along the slide rod 17 at one end of the adjusting groove 16. At this time, the locking block 111 moves to one end of the locking slot 15. The rotating plate 12 is rotated outward, and the locking block 111 moves out of the locking slot 15. When the rotating plate 12 rotates out, the filter body 13 is simultaneously removed from the filter box 1. The filter body 13 is quickly removed from the middle of the placement plate 14 using the fixing component 2, and then a new filter body 13 is placed in the center. The filter box 1 is fixed in the middle of the placement plate 14 by the fixing component 2. The filter box 1 is rotated and reset. The rotating plate 12 is tightly fitted with the filter box 1 by the locking block 111. When the connecting component 3 is moved, the air inlet pipe 10 is sealed to the top of the filter body 13, thereby completing the replacement of the filter body 13. When disassembling the filter body 13, the filter body 13 is moved upward. When subjected to a certain pressure, the arc at the end of the fixing block 25 moves it into the fixing plate 22. At this time, the connected rod 23, which is pushed, slides in the middle of the fixing plate 22. The second spring 24 generates elastic tension, thereby quickly removing the filter body 13. When installing the filter body 13, the positioning groove 21 is moved downward according to the position of the fixing plate 22, while the fixing block 25 is squeezed to enter the fixing plate 22. When the filter body 13 is installed, the positioning groove 21 is moved downward according to the position of the fixing plate 22, while the fixing block 25 is squeezed to enter the fixing plate 22. When the bottom of the filter element body 13 is attached to the placement plate 14, the pressure-free fixing block 25 moves outward via the second spring 24. The end of the fixing block 25 locks and fixes the bottom edge of the filter element body 13, thereby quickly installing the filter element body 13. When removing the filter element body 13, rotate the connecting cylinder 31. The air inlet pipe 10 rotates at the end of the connecting cylinder 31, and at the same time, the connecting cylinder 31 moves upward via the thread, causing the sealing ring 33 on the top of the filter element body 13 to continuously move out of the connecting groove 32. After the sealing ring 33 moves out of the connecting groove 32, the filter element body 13 can be removed from the filter box 1 for replacement. After placing the replaced filter element body 13 into the filter box 1, rotate the connecting cylinder 31 in the opposite direction to move it downward. At this time, the sealing ring 33 enters the connecting groove 32, and through... The sealing ring 33 and the connecting groove 32 seal the filter body 13 and the air inlet pipe 10. Multiple fastening bolts 42 secure the mounting plate 41 inside the ventilator. When replacing the filter body 13, the filter box 1 is moved outwards, allowing the moving rod 44 to slide from the middle of the support rod 43, thus quickly moving the filter box 1 to a convenient operating position. After replacing the filter body 13, the rotating plate 12 is closed, and the first sealing strip 5 and the second sealing strip 51 adhere to the inner wall of the rotating plate 12, sealing the gap between the rotating plate 12 and the inner wall. After the filter body 13 has been used for a period of time, the ventilator is turned on, and the degree of contamination of the filter body 13 inside the filter box 1 is directly observed through the glass plate 6. The filter box 1 is installed inside the ventilator during use.The filter box 1 is protected from prolonged exposure to humid environments by an anti-corrosion and antibacterial coating.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-release ventilator filter replacement structure, comprising a filter housing (1); characterized in that: The filter box (1) is provided with a connecting component (3) at the top; an air inlet pipe (10) is installed in the middle of the connecting component (3); an air outlet pipe (11) is installed in the middle of the filter box (1); a rotating plate (12) is rotatably connected to the middle of the filter box (1); a placement plate (14) is fixedly connected to the inner side wall of the rotating plate (12); a filter element body (13) is installed in the middle of the placement plate (14); a fixing component (2) is provided in the middle of the filter element body (13) and the placement plate (14); two slots (15) are opened at the end of the rotating plate (12); the two slots (15) are arranged opposite to each other; the filter... Two adjustment slots (16) are provided in the middle of the filter box (1); the adjustment slots (16) are correspondingly provided with the slots (15); a locking block (111) is slidably connected in the middle of the adjustment slots (16); a sliding rod (17) is fixedly connected in the middle of the locking block (111); the sliding rod (17) is slidably connected in the middle of the filter box (1); a pressure block (19) is fixedly connected at the end of the sliding rod (17); a first spring (18) is fixedly connected to the middle of the filter box (1) and the pressure block (19); the two pressure blocks (19) are respectively provided at the top and bottom of the filter box (1); an installation assembly (4) is provided at the bottom of the filter box (1).

2. The quick-release ventilator filter replacement structure according to claim 1, characterized in that: The fixing component (2) includes multiple positioning grooves (21); the multiple positioning grooves (21) are opened at the bottom of the filter body (13); multiple fixing plates (22) are fixedly connected to the middle of the placement plate (14); the multiple fixing plates (22) are arranged in the middle of the corresponding positioning grooves (21); a fixing block (25) is slidably connected to the middle of the fixing plate (22); a connecting rod (23) is fixedly connected to the middle of the fixing block (25); the connecting rod (23) is slidably connected to one side of the middle of the fixing plate (22); a second spring (24) is fixedly connected to the end of the connecting rod (23) and the side wall of the fixing plate (22).

3. The quick-release ventilator filter replacement structure according to claim 1, characterized in that: The connecting assembly (3) includes a connecting cylinder (31); the connecting cylinder (31) is threaded to the top of the filter box (1); the connecting cylinder (31) is rotatably connected to the end of the air inlet pipe (10); a connecting groove (32) is provided at the end of the connecting cylinder (31); a sealing ring (33) is fixedly connected to the top of the filter element body (13); the sealing ring (33) is located in the middle of the corresponding connecting groove (32).

4. The quick-release ventilator filter replacement structure according to claim 1, characterized in that: The mounting assembly (4) includes a base (45); the base (45) is fixed to the bottom of the filter box (1); a moving rod (44) is fixed to the middle of the base (45); a support rod (43) is slidably connected to the middle of the moving rod (44); a mounting plate (41) is fixed to the end of the support rod (43); and a plurality of fastening bolts (42) are installed in the middle of the mounting plate (41).

5. The quick-release ventilator filter replacement structure according to claim 1, characterized in that: The filter box (1) has a first sealing strip (5) and a second sealing strip (51) fixedly connected to the inner wall; the first sealing strip (5) is fixedly connected to the top of the filter box (1); the second sealing strip (51) is fixedly connected to the bottom of the filter box (1); the first sealing strip (5) and the second sealing strip (51) are arc-shaped; the first sealing strip (5) and the second sealing strip (51) are attached to the inner wall of the rotating plate (12).

6. The quick-release ventilator filter replacement structure according to claim 1, characterized in that: A glass plate (6) is fixedly connected to the middle of the rotating plate (12); the glass plate (6) and the rotating plate (12) are sealed together.

7. The quick-release ventilator filter replacement structure according to claim 1, characterized in that: The filter box (1) has an anti-corrosion and antibacterial coating on its surface.

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