Aircraft passenger compartment sub-efficient cylindrical filter
By designing sub-high efficiency cylindrical filters in the aircraft passenger compartment and adopting dust removal components and disassembly components, the problem of frequent replacement and disassembly of existing filter devices is solved, and a longer service life, higher filtration effect and lower economic costs are achieved.
Patent Information
- Application Number
- CN202422026312.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-21
AI Technical Summary
The existing aircraft passenger compartment filter device needs to be replaced frequently after long-term use, resulting in dust accumulation and reduced air circulation, increased economic costs, and inconvenient disassembly, reducing work efficiency.
A sub-efficient cylindrical filter for aircraft passenger compartments is designed, using dust removal components and disassembly components, driving the annular scraper to move and clean up dust by driving the motor, and simplifying the disassembly of the filter cartridge through the limiting component.
It effectively extends the replacement cycle of the filter device, improves the air flow and filtering effect, reduces economic costs, and improves the disassembly efficiency of the device.
Smart Images
Figure CN223010119U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of aircraft passenger cabin air purification, and particularly relates to a sub-high efficiency cylindrical filter for an aircraft passenger cabin. Background Technique
[0002] With the continuous progress of aviation technology and the increasing requirements of passengers for riding comfort, the air quality in the aircraft passenger cabin has become the focus of attention of airlines. The air in the aircraft passenger cabin needs to be filtered to remove harmful substances such as dust, bacteria, and viruses in the air to ensure the respiratory health of passengers.
[0003] In the aircraft passenger cabin, sub-high efficiency filters are usually installed in the environmental control system and combined with the recirculated air system and the engine bleed air system to jointly provide high-quality air for the passenger cabin. By filtering out particulate matter and pollutants in the air, the sub-high efficiency filter helps to reduce the health risks that passengers may face during long flights and improve the comfort and safety of travel.
[0004] The existing filtering device needs to be replaced regularly during long-term use. If the replacement is too late, there will be more dust and debris inside the device, resulting in a reduction in air flow and a deterioration in filtering effect. Moreover, frequent replacement increases the economic cost. At the same time, when disassembling the filter cartridge, it is rather inconvenient, reducing the work efficiency. Therefore, in view of the above problems, a sub-high efficiency cylindrical filter for an aircraft passenger cabin is proposed. Content of the Utility Model
[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background technique, the utility model proposes a sub-high efficiency cylindrical filter for an aircraft passenger cabin.
[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A sub-high efficiency cylindrical filter for an aircraft passenger cabin according to the utility model includes an outlet side guard plate: One end of the outlet side guard plate is fixed with a bottom plate; A filter cartridge is arranged inside the outlet side guard plate; An inlet side guard plate is arranged inside the filter cartridge. The filter cartridge is inserted and connected with the bottom plate; A fixing plate is fixed at the top end of the inlet side guard plate; A top cover is arranged at the other end of the outlet side guard plate; The fixing plate is connected with the top cover through a disassembly component; A dust removal component is arranged inside the inlet side guard plate; The dust removal component includes an annular scraping plate; The outer side of the annular scraping plate is in contact with the inner wall of the inlet side guard plate; A connecting seat is fixed inside the annular scraping plate; A driving component is arranged at a position corresponding to the annular scraping plate inside the inlet side guard plate for driving the annular scraping plate to move.
[0007] Preferably, the driving assembly includes a driving motor; the driving motor is fixed at the inner side position of the bottom plate; a driving screw is fixed to the output end of the driving motor; the driving screw is threadedly connected to the connecting seat; the top end of the driving screw is rotatably connected to the top cover.
[0008] Preferably, a limiting slide bar is fixed to one side of the bottom plate close to the top cover; one end of the limiting slide bar away from the bottom plate is in contact with the top cover; the connecting seat is slidably connected to the limiting slide bar.
[0009] Preferably, an ash collection box is slidably connected to the inner side of the bottom plate; a mounting block is fixed to one side of the ash collection box; a plugging hole is opened at the top end of the mounting block; a plugging assembly is arranged at a position on the inner side of the bottom plate corresponding to the plugging hole.
[0010] Preferably, the plugging assembly includes a plugging block; the plugging block is arranged at a position on the inner side of the bottom plate corresponding to the plugging hole; the plugging block is slidably connected to the bottom plate; a moving rod is fixed to one end of the plugging block away from the mounting block; one end of the moving rod away from the plugging block extends to the outside of the bottom plate; the moving rod is slidably connected to the inlet side guard plate; a first spring is sleeved on the outer side of one end of the moving rod close to the plugging block; one end of the first spring is fixed to the bottom plate; the other end of the first spring is fixed to the plugging block; a dial plate is fixed to one end of the moving rod located outside the bottom plate.
[0011] Preferably, the disassembly assembly includes a connecting column; the connecting column is fixed at a position on the side of the fixing plate close to the top cover; the connecting column extends to the outside of the top cover; a fixing cylinder is fixed at a position on the side of the top cover away from the fixing plate corresponding to the connecting column; the connecting column extends into the inner side of the fixing cylinder; the connecting column and the fixing cylinder are connected by a limiting assembly.
[0012] Preferably, the limiting assembly includes a moving cylinder; the moving cylinder is sleeved on the outer side of the fixing cylinder; a fixing ring is fixed to the outer side of one end of the fixing cylinder away from the top cover; the moving cylinder is slidably connected to the fixing ring; a fixing block is fixed to the inner side of one end of the moving cylinder away from the fixing ring; the fixing block is slidably connected to the fixing cylinder; a second spring is sleeved on the outer side of the fixing cylinder at a position between the fixing ring and the fixing block; a plurality of limiting balls are slidably connected to the fixing cylinder corresponding to the fixing block; an annular limiting groove is opened at a position on the connecting column corresponding to the limiting balls; the limiting balls are inserted and connected to the connecting column through the annular limiting groove.
[0013] The beneficial effects of the present utility model:
[0014] 1. The utility model provides a sub-high efficiency cylindrical filter for an aircraft passenger cabin. Through the structural design of the dust removal component, when the driving motor is started to drive the annular scraper to move, the dust attached to the inner wall of the inlet side guard plate can be scraped and cleaned, effectively reducing the decrease in the air circulation volume of the device due to excessive dust. At the same time, the filtering effect of the device can be improved, the replacement frequency of the device can be extended, the cost can be reduced, and the practicability of the device can be enhanced.
[0015] 2. The utility model provides a sub-high efficiency cylindrical filter for an aircraft passenger cabin. Through the combined structural design of the connecting column, the fixed cylinder and the limiting component, when the filter cylinder needs to be replaced and disassembled, the limit between the connecting column and the fixed cylinder can be cancelled through the limiting component, so that the fixed cylinder can be taken out from the top end of the connecting column, and then the top cover can be disassembled. Subsequently, the filter cylinder can be taken out in sequence to complete the disassembly work of the filter cylinder, improving the working efficiency of the filter cylinder disassembly and enhancing the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings described herein are used to provide a further understanding of the utility model and form a part of this application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model. In the drawings:
[0017] Figure 1 is a three-dimensional view of the utility model;
[0018] Figure 2 is a three-dimensional view of the filter cylinder and the dust removal component in the utility model;
[0019] Figure 3 is a three-dimensional view of the ash collection box and the mounting block in the utility model;
[0020] Figure 4 is a three-dimensional view of the plug-in component in the utility model;
[0021] Figure 5 is a three-dimensional view of the limiting component in the utility model.
[0022] LEGEND DESCRIPTION:
[0023] 1. Outlet side guard plate; 2. Top cover; 3. Bottom plate; 4. Filter cylinder; 5. Inlet side guard plate; 6. Ash collection box; 7. Annular scraper; 8. Fixed plate; 9. Connecting seat; 10. Driving screw; 11. Limiting slide bar; 12. Driving motor; 13. Mounting block; 14. Plug-in hole; 15. Plug-in block; 16. Moving rod; 17. First spring; 18. Dial plate; 19. Connecting column; 20. Fixed cylinder; 21. Moving cylinder; 22. Annular limiting groove; 23. Limiting ball; 24. Second spring; 25. Fixed block; 26. Fixed ring; 27. Dial ring. Detailed implementation manners
[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0025] Specific embodiments are given below.
[0026] Please refer to Figures 1 - 5 , the present invention provides a sub-high-efficiency cylindrical filter for an aircraft passenger cabin, including an outlet side guard plate 1: one end of the outlet side guard plate 1 is fixed with a bottom plate 3; a filter cylinder 4 is arranged inside the outlet side guard plate 1; an inlet side guard plate 5 is arranged inside the filter cylinder 4; the filter cylinder 4 is inserted and connected with the bottom plate 3; a fixing plate 8 is fixed at the top end of the inlet side guard plate 5; a top cover 2 is arranged at the other end of the outlet side guard plate 1; the fixing plate 8 is connected with the top cover 2 through a disassembly component; a dust removal component is arranged inside the inlet side guard plate 5; the dust removal component includes an annular scraping plate 7; the outer side of the annular scraping plate 7 is in contact with the inner wall of the inlet side guard plate 5; a connecting seat 9 is fixed inside the annular scraping plate 7; a driving component is arranged at a position corresponding to the annular scraping plate 7 inside the inlet side guard plate 5 for driving the annular scraping plate 7 to move. During operation, when it is necessary to clean the dust inside the inlet side guard plate 5, first start the driving component to drive the annular scraping plate 7 to move, so as to scrape off the dust impurities attached to the inner wall of the inlet side guard plate 5 through the movement of the annular scraping plate 7. When it is necessary to replace the filter cylinder 4, first separate the top cover 2 from the fixing plate 8 through the disassembly component, so that the fixing plate 8 and the inlet side guard plate 5 can be taken out from the inside of the outlet side guard plate 1, and then the filter cylinder 4 can be taken out in sequence. Through the structural design of the dust removal component in this step, when the driving component is started to drive the annular scraping plate 7 to move, the dust attached to the inner wall of the inlet side guard plate 5 can be scraped off and cleaned, thus effectively reducing the decrease in the air circulation volume of the device due to excessive dust, improving the filtering effect of the device, extending the replacement frequency of the device, reducing the cost, and enhancing the practicability of the device;
[0027] Further, as Figure 2 and Figure 3As shown in the figure, the driving component includes a driving motor 12; the driving motor 12 is fixed at the inner position of the bottom plate 3; a driving screw 10 is fixed to the output end of the driving motor 12; the driving screw 10 is threadedly connected to the connecting seat 9; the top end of the driving screw 10 is rotatably connected to the top cover 2. During operation, when it is necessary to drive the annular scraper 7 to move, first start the driving motor 12, so that the driving motor 12 drives the driving screw 10 to rotate. When the driving screw 10 rotates, it can drive the connecting seat 9 that is threadedly connected to it to move, thereby driving the annular scraper 7 to move. This step can, through the structural design of the driving motor 12 and the driving screw 10, enable the connecting seat 9 and the annular scraper 7 to be driven to move by the driving screw 10 when the driving motor 12 is started, providing power for the movement of the annular scraper 7.
[0028] Furthermore, as Figure 2 and Figure 3 shown in the figure, a limiting slide bar 11 is fixed to one side of the bottom plate 3 close to the top cover 2; the end of the limiting slide bar 11 away from the bottom plate 3 is in contact with the top cover 2; the connecting seat 9 is slidably connected to the limiting slide bar 11. During operation, when the driving screw 10 rotates, it can limit the rotation of the connecting seat 9 through the limiting slide bar 11, so that the connecting seat 9 cannot rotate, and thus can move along the axis of the annular scraper 7. This step can effectively limit the connecting seat 9 through the structural design of the limiting slide bar 11, avoiding the connecting seat 9 from rotating with the driving screw 10.
[0029] As Figure 3 and Figure 4 shown in the figure, a dust collecting box 6 is slidably connected to the inside of the bottom plate 3; a mounting block 13 is fixed to one side of the dust collecting box 6; a plugging hole 14 is opened at the top end of the mounting block 13; a plugging component is provided at a position on the inside of the bottom plate 3 corresponding to the plugging hole 14. During operation, when the annular scraper 7 moves towards the direction close to the dust collecting box 6, the scraped dust can be moved to the inside of the dust collecting box 6 for collection. When it is necessary to clean the dust, the mounting block 13 and the dust collecting box 6 can be disassembled through the plugging component, so that the dust inside the dust collecting box 6 can be processed. This step can collect the dust, facilitating subsequent processing of the dust.
[0030] As Figure 4As shown, the plug-in assembly includes a plug-in block 15; the plug-in block 15 is arranged on the inner side of the base plate 3 and at a position corresponding to the plug-in hole 14; the plug-in block 15 is slidably connected to the base plate 3; a moving rod 16 is fixed to one end of the plug-in block 15 away from the mounting block 13; the end of the moving rod 16 away from the plug-in block 15 extends to the outside of the base plate 3; the moving rod 16 is slidably connected to the inlet side guard plate 5; a first spring 17 is sleeved on the outer side of one end of the moving rod 16 close to the plug-in block 15; one end of the first spring 17 is fixedly connected to the base plate 3; the other end of the first spring 17 is fixedly connected to the plug-in block 15; a shift plate 18 is fixed to one end of the moving rod 16 located on the outside of the base plate 3. During operation, when it is necessary to disassemble the ash box 6, first, by toggling the dial plate 18, the dial plate 18 drives the plug-in block 15 to move through the moving rod 16, and at the same time squeezes the first spring 17. When the plug-in block 15 moves to disengage from the plug-in hole 14, the plug-in block 15 cancels the limit of the mounting block 13, and then the mounting block 13 and the ash box 6 can be taken out from the inner side of the bottom plate 3 to complete the disassembly work. When installing, the movement of the mounting block 13 will squeeze the plug-in block 15. When the mounting block 13 moves to the plug-in hole 14, the plug-in block 15 will be pressed. When the hole 14 is in a position corresponding to the plug-in block 15, the plug-in block 15 is pushed to the inside of the plug-in hole 14 under the elastic action of the first spring 17, thereby completing the limitation of the mounting block 13 and completing the installation of the dust collection box 6. This step can be achieved through the structural design of the plug-in block 15, so that the mounting block 13 can be limited, thereby preventing the dust collection box 6 from sliding out from the inside of the bottom plate 3. At the same time, the structural design of the first spring 17 can limit the plug-in block 15 to prevent the plug-in block 15 from moving.
[0031] like Figure 5 As shown, the disassembly assembly includes a connecting column 19; the connecting column 19 is fixed at a position on one side of the fixing plate 8 close to the top cover 2; the connecting column 19 extends to the outside of the top cover 2; a fixing cylinder 20 is fixed at a position on the side of the top cover 2 away from the fixing plate 8 and corresponding to the connecting column 19; the connecting column 19 extends to the inside of the fixing cylinder 20; the connecting column 19 and the fixing cylinder 20 are connected through a limiting assembly. During operation, when it is necessary to disassemble the top cover 2, first, the limit of the connecting column 19 is cancelled by the limit assembly, so that the connecting column 19 can slide inside the fixed cylinder 20, so that the top cover 2 and the fixed cylinder 20 can be moved out from the connecting column 19, and the disassembly of the top cover 2 is completed, and then the inlet side guard plate 5 and the filter cylinder 4 are taken out from the inner side of the outlet side guard plate 1 in turn to complete the disassembly work. This step is designed through the matching structure of the connecting column 19, the fixed cylinder 20 and the limit assembly, so that when the filter cylinder 4 needs to be replaced and disassembled, the limit of the connecting column 19 and the fixed cylinder 20 can be cancelled by the limit assembly, so that the fixed cylinder 20 can be taken out from the top of the connecting column 19, and the top cover 2 can be disassembled, and then the inlet side guard plate 5 and the filter cylinder 4 are taken out in turn to complete the disassembly of the filter cylinder 4, thereby improving the working efficiency of the disassembly of the filter cylinder 4 and improving the practicality of the device.
[0032] As Figure 5 shown, the limiting component includes a moving cylinder 21; the moving cylinder 21 is sleeved outside the fixed cylinder 20; a fixing ring 26 is fixed on the outside of one end of the fixed cylinder 20 away from the top cover 2; the moving cylinder 21 is slidably connected to the fixing ring 26; a fixing block 25 is fixed on the inner side of one end of the moving cylinder 21 away from the fixing ring 26; the fixing block 25 is slidably connected to the fixed cylinder 20; a second spring 24 is sleeved on the outside of the fixed cylinder 20 at a position between the fixing ring 26 and the fixing block 25; a plurality of limiting balls 23 are slidably connected to the fixed cylinder 20 at positions corresponding to the fixing block 25; an annular limiting groove 22 is formed at a position corresponding to the connecting column 19 and the limiting ball 23; the limiting ball 23 is inserted and connected to the connecting column 19 through the annular limiting groove 22. During operation, when it is necessary to cancel the limitation of the connecting column 19, first move the moving cylinder 21 in the direction away from the top cover 2. When the moving cylinder 21 moves, it will squeeze the second spring 24 and drive the fixing block 25 to move at the same time. When the fixing block 25 moves away from the limiting ball 23, the fixing block 25 cancels the limitation of the limiting ball 23, so that the limiting ball 23 can move up and down. Then, the top cover 2 can be moved in the direction away from the fixing plate 8 to complete the disassembly. During installation, first drive the moving cylinder 21 to move in the direction away from the top cover 2 through the dial ring 27. Then, move the fixed cylinder 20 to the top of the connecting column 19. When the fixed cylinder 20 moves, the connecting column 19 will squeeze the limiting ball 23, so that the limiting ball 23 moves in the direction away from the connecting column 19. When the fixed cylinder 20 moves to a position where the annular limiting groove 22 corresponds to the limiting ball 23, release the dial ring 27. At this time, under the elastic action of the second spring 24, the fixing block 25 is pushed, so that the fixing block 25 drives the moving cylinder 21 to move in the direction close to the top cover 2. When the fixing block 25 moves, it will squeeze the limiting ball 23, so that the limiting ball 23 moves to the inside of the limiting ball 23. At the same time, the fixing block 25 can limit the limiting ball 23 to prevent the limiting ball 23 from disengaging from the inside of the annular limiting groove 22, and the installation can be completed. This step can effectively design the cooperation structure of the second spring 24, the fixing block 25, the limiting ball 23 and the moving cylinder 21, so that the disassembly and installation of the connecting column 19 and the fixed cylinder 20 can be facilitated, and the installation and disassembly efficiency of the connecting column 19 and the fixed cylinder 20 is improved.
[0033] Working principle: When it is necessary to clean the dust inside the inlet side guard plate 5, first start the drive assembly to drive the annular scraper 7 to move, so that the dust and impurities attached to the inner wall of the inlet side guard plate 5 are scraped off by the movement of the annular scraper 7. When it is necessary to replace the filter cartridge 4, first separate the top cover 2 from the fixing plate 8 by disassembling the assembly, so that the fixing plate 8 and the inlet side guard plate 5 can be taken out from the inside of the outlet side guard plate 1, and then the filter cartridge 4 can be taken out in turn; when it is necessary to drive the annular scraper 7 to move, first start the drive motor 12 so that the drive motor 1 2 drives the driving screw 10 to rotate. When the driving screw 10 rotates, it can drive the connecting seat 9 threadedly connected with it to move, thereby driving the annular scraper 7 to move; when the driving screw 10 rotates, the connecting seat 9 can be rotationally limited by the limiting slide bar 11, so that the connecting seat 9 cannot rotate, thereby being able to move along the axial direction of the annular scraper 7; when the annular scraper 7 moves in the direction close to the dust collecting box 6, the scraped dust can be moved to the inner side of the dust collecting box 6 for collection. When the dust needs to be cleaned, the mounting block 13 and the dust collecting box can be connected by the plug-in assembly 6 is disassembled, so that the dust inside the ash box 6 can be processed; when the ash box 6 needs to be disassembled, first, by toggling the dial plate 18, the dial plate 18 drives the plug-in block 15 to move through the moving rod 16, and at the same time squeezes the first spring 17. When the plug-in block 15 moves to disengage from the plug-in hole 14, the plug-in block 15 cancels the limit of the mounting block 13, and then the mounting block 13 and the ash box 6 can be taken out from the inner side of the bottom plate 3 to complete the disassembly work. When installing, the movement of the mounting block 13 will squeeze the plug-in block 15. When the mounting block 13 moves to the plug-in hole 14 and the plug-in block 15, the plug-in block 15 is pushed to the inside of the plug-in hole 14 under the elastic action of the first spring 17, thereby completing the limit of the installation block 13, and the installation of the ash box 6 can be completed; when it is necessary to disassemble the top cover 2, first cancel the limit of the connecting column 19 through the limit assembly, so that the connecting column 19 can slide inside the fixing cylinder 20, so that the top cover 2 and the fixing cylinder 20 can be removed from the connecting column 19, and the disassembly of the top cover 2 can be completed, and then the inlet side guard plate 5 and the filter cylinder 4 are taken out from the inside of the outlet side guard plate 1 in turn to complete the disassembly work;When it is necessary to cancel the limit on the connecting column 19, first move the moving cylinder 21 in the direction away from the top cover 2. When the moving cylinder 21 moves, it will squeeze the second spring 24 and drive the fixed block 25 to move at the same time. When the fixed block 25 moves away from the limit ball 23, the fixed block 25 cancels the limit on the limit ball 23, enabling the limit ball 23 to move up and down. Then, the top cover 2 can be moved away from the fixed plate 8 to complete the disassembly. During installation, first drive the moving cylinder 21 to move away from the top cover 2 through the dial ring 27. Subsequently, move the fixed cylinder 20 to the top of the connecting column 19. When the fixed cylinder 20 moves, the connecting column 19 will squeeze the limit ball 23, causing the limit ball 23 to move away from the connecting column 19. When the fixed cylinder 20 moves to a position where the annular limit groove 22 corresponds to the limit ball 23, release the dial ring 27. At this time, under the elastic action of the second spring 24, the fixed block 25 is pushed, causing the fixed block 25 to drive the moving cylinder 21 to move towards the top cover 2. When the fixed block 25 moves, it will squeeze the limit ball 23, causing the limit ball 23 to move to the inside of the limit ball 23. At the same time, the fixed block 25 can limit the limit ball 23 to prevent the limit ball 23 from detaching from the inside of the annular limit groove 22, and the installation can be completed.
[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.
Claims
1. An aircraft passenger compartment sub-high efficiency cylindrical filter, comprising an outlet side guard plate (1), characterized in that: A bottom plate (3) is fixed to one end of the outlet side guard plate (1); a filter cartridge (4) is arranged on the inner side of the outlet side guard plate (1); an inlet side guard plate (5) is arranged on the inner side of the filter cartridge (4); the filter cartridge (4) is plug-connected to the bottom plate (3); a fixing plate (8) is fixed to the top end of the inlet side guard plate (5); a top cover (2) is arranged on the other end of the outlet side guard plate (1); the fixing plate (8) is connected to the top cover (2) via a disassembly assembly; a dust removal assembly is arranged on the inner side of the inlet side guard plate (5); the dust removal assembly comprises an annular scraper (7); the outer side of the annular scraper (7) is in contact with the inner wall of the inlet side guard plate (5); a connecting seat (9) is fixed to the inner side of the annular scraper (7); a driving assembly is arranged on the inner side of the inlet side guard plate (5) and at a position corresponding to the annular scraper (7), for driving the annular scraper (7) to move.
2. The aircraft passenger cabin sub-high efficiency cylindrical filter according to claim 1, characterized in that: The drive assembly comprises a drive motor (12); the drive motor (12) is fixed at an inner position of the bottom plate (3); a drive screw (10) is fixed to the output end of the drive motor (12); the drive screw (10) is threadedly connected to the connecting seat (9); and the top end of the drive screw (10) is rotatably connected to the top cover (2).
3. The aircraft passenger cabin sub-high efficiency cylindrical filter according to claim 2, characterized in that: A limiting slide bar (11) is fixed to a side of the bottom plate (3) close to the top cover (2); an end of the limiting slide bar (11) away from the bottom plate (3) is in contact with the top cover (2); and the connecting seat (9) is slidably connected to the limiting slide bar (11).
4. The aircraft passenger cabin sub-high efficiency cylindrical filter according to claim 1, characterized in that: An ash collecting box (6) is slidably connected to the inner side of the bottom plate (3); a mounting block (13) is fixed to one side of the ash collecting box (6); a plug-in hole (14) is provided at the top of the mounting block (13); and a plug-in assembly is provided at a position on the inner side of the bottom plate (3) corresponding to the plug-in hole (14).
5. The aircraft passenger cabin sub-high efficiency cylindrical filter according to claim 4, characterized in that: The plug-in assembly comprises a plug-in block (15); the plug-in block (15) is arranged on the inner side of the bottom plate (3) and at a position corresponding to the plug-in hole (14); the plug-in block (15) is slidably connected to the bottom plate (3); a moving rod (16) is fixed to one end of the plug-in block (15) away from the mounting block (13); the end of the moving rod (16) away from the plug-in block (15) extends to the outside of the bottom plate (3); the moving rod (16) is slidably connected to the inlet side guard plate (5); a first spring (17) is sleeved on the outer side of one end of the moving rod (16) close to the plug-in block (15); one end of the first spring (17) is fixedly connected to the bottom plate (3); the other end of the first spring (17) is fixedly connected to the plug-in block (15); and a shift plate (18) is fixed to one end of the moving rod (16) located outside the bottom plate (3).
6. The aircraft passenger cabin sub-high efficiency cylindrical filter according to claim 1, characterized in that: The disassembly assembly comprises a connecting column (19); the connecting column (19) is fixed to a position on one side of the fixing plate (8) close to the top cover (2); the connecting column (19) extends to the outside of the top cover (2); a fixing cylinder (20) is fixed to a position on a side of the top cover (2) away from the fixing plate (8) and corresponding to the connecting column (19); the connecting column (19) extends to the inside of the fixing cylinder (20); the connecting column (19) and the fixing cylinder (20) are connected via a limiter assembly.
7. The aircraft passenger cabin sub-high efficiency cylindrical filter according to claim 6, characterized in that: The limiting assembly comprises a moving cylinder (21); the moving cylinder (21) is sleeved on the outside of the fixed cylinder (20); a fixing ring (26) is fixed on the outside of one end of the fixed cylinder (20) away from the top cover (2); the moving cylinder (21) is slidably connected to the fixing ring (26); a fixing block (25) is fixed on the inside of one end of the moving cylinder (21) away from the fixing ring (26); the fixing block (25) is slidably connected to the fixed cylinder (20); a second spring (24) is sleeved on the outside of the fixed cylinder (20) and at a position between the fixing ring (26) and the fixing block (25); a plurality of limiting balls (23) are uniformly slidably connected at positions corresponding to the fixed cylinder (20) and the fixing block (25); an annular limiting groove (22) is provided at positions corresponding to the connecting column (19) and the limiting ball (23); and the limiting ball (23) is plug-connected to the connecting column (19) through the annular limiting groove (22).