A green building ventilation system with intelligent regulation function

Abstract

The present application discloses a green building ventilation system with intelligent adjustment function, including an air supply tube, upper rollers are rotatably installed on the side walls of both sides of the air supply tube near the top of the air supply tube, lower rollers are rotatably installed on the side walls of both sides of the air supply tube near the bottom of the air supply tube, a mounting plate is fixed at a position away from the upper roller in the top of the air supply tube, a filter mechanism is arranged in the air supply tube, the filter mechanism includes a mounting assembly, a filter assembly and a drive assembly, the filter assembly is arranged on the mounting assembly, the filter assembly is composed of a plurality of filter screens connected in sequence, one of the filter screens is vertical, and the surface of the filter screen is simultaneously in contact with the roller surface of the upper roller and the roller surface of the lower roller, and the drive assembly is used to drive a spare new filter screen to replace a dirty filter screen. The present application changes the situation in the traditional technology of using a cleaning brush to clean the filter screen and accelerate the damage of the filter screen, reduces the dust generated by cleaning the filter screen, and ensures the air quality of the air supply system.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation systems, and in particular to a green building ventilation system with intelligent adjustment function. Background Art

[0002] Green buildings refer to buildings that maximize resource conservation, including energy, land, water, and materials conservation, protect the environment, reduce pollution, provide people with healthy, comfortable, and efficient use of space, and coexist harmoniously with nature throughout the entire life cycle of the building. Building ventilation is divided into natural ventilation and mechanical ventilation, which means that the indoor polluted air of the building is directly or purified and discharged to the outside, and then fresh air is added to keep the indoor air environment in line with hygiene standards.

[0003] A Chinese invention patent with publication number CN114909752B discloses an energy-saving ventilation structure for architectural design, including an air inlet tube, a connecting tube, an air outlet tube, an air inlet adjustment component, an air outlet adjustment component, a filter plate 1, a filter plate 2, an air inlet component, a control box, a mounting frame, a solar panel and a power storage device; the air inlet tube and the air outlet tube are respectively connected to the two ends of the connecting tube; the air inlet adjustment component is arranged on the air inlet tube; the air outlet adjustment component is arranged on the air outlet tube; the filter plate 1 and the filter plate 2 are respectively arranged on the air inlet / outlet ends of the connecting tube; the air inlet component is arranged between the filter plate 1 and the filter plate 2; the mounting frame is arranged on the air inlet tube and connected to the wall at the same time; the solar panel is arranged on the mounting frame and electrically connected to the power storage device. The air inlet assembly includes a driving member, a rotating shaft, a fan, a rotating frame and a cleaning member; the rotating shaft driven by the driving member is rotatably arranged in the connecting tube, one end of which is rotatably connected to filter plate one, and the other end of which is rotatably connected to filter plate two; the fan is arranged in the middle of the rotating shaft; the rotating frame is arranged at the end of the rotating shaft; the cleaning member is arranged on the rotating frame and cooperates with filter plate one / filter plate two.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: during use, the cleaning member rotates with the rotating frame to clean filter plate one and filter plate two to avoid clogging of the mesh holes and cause poor ventilation. During actual use, the filter plates used for filtering are usually mesh plates with extremely small thickness and extremely small mesh holes, such as air conditioning filters. The hardness of these filtering mesh plates is relatively low. If the cleaning member is used for a long time to rotate and clean the mesh plates, it is easy to cause great wear on the mesh plates, accelerate the loss of the mesh plates, and shorten the service life of the ventilation system. Therefore, in addition, when cleaning the mesh plates for filtering, large dust will be generated. The dust accumulates in the air inlet pipe, which is easy to have a certain impact on the subsequent air quality entering the room. Therefore, it is necessary to improve the design of the related technologies. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a green building ventilation system with intelligent adjustment function.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a green building ventilation system with intelligent adjustment function, including an air supply cylinder, upper rotating rollers are rotatably installed on the side walls on both sides of the air supply cylinder near the top of the air supply cylinder, lower rotating rollers are rotatably installed on the side walls on both sides of the air supply cylinder near the bottom of the air supply cylinder, a mounting plate is fixed at a position at the top of the air supply cylinder away from the upper rotating roller, a filtering mechanism is arranged in the air supply cylinder, the filtering mechanism includes a mounting assembly, a filtering assembly and a driving assembly, the filtering assembly is arranged on the mounting assembly, the filtering assembly is composed of a plurality of filter screens connected in sequence, one of the filter screens is vertical, and the surface of the filter screen is simultaneously in contact with the roller surface of the upper rotating roller and the roller surface of the lower rotating roller, and the driving assembly is used to drive a spare new filter screen to replace a dirty filter screen.

[0007] By adopting the above technical solution, the working filter surface is simultaneously in contact with the roller surface of the upper roller and the roller surface of the lower roller to filter the air transported through the air supply tube. After a period of use, the user can drive the spare new filter to replace the dirty filter through the driving component. Since multiple filters are arranged in the air supply tube, the time for centralized replacement or cleaning of the filters is extended, which changes the situation in traditional technology of using a cleaning brush to clean the filters and accelerates the damage of the filters, and reduces the large amount of dust generated by cleaning the filters, thereby ensuring the air quality of the air supply system.

[0008] The lifting of the filter is symmetrical and the lifting of the filter is symmetrical. The lifting of the filter is symmetrical. The lifting of the filter is symmetrical. The lifting of the filter is symmetrical. The lifting of the filter is symmetrical. The lifting of the filter is symmetrical. The lifting of the filter is symmetrical. The lifting of the filter is symmetrical.

[0009] By adopting the above technical solution, multiple elastic ropes are fixed to the C-shaped card plate away from the upper rotating roller. The multiple elastic ropes cooperate with the driving assembly to ensure the stability of the filter during use. When replacing a new filter, the driving assembly pulls the C-shaped card plate close to the lower rotating roller to make the dirty filter rotate with the open chain until the driving assembly is closed when a new spare filter is replaced.

[0010] Furthermore, the cross-section of the mounting plate is Z-shaped, and the filter screens that are not connected to the roller surface of the upper roller and the roller surface of the lower roller are located between the horizontal portion of the lower side of the mounting plate and the inner top wall of the air supply tube, and the end of the elastic rope away from the C-shaped clamping plate is fixed to the vertical section of the mounting plate.

[0011] By adopting the above technical solution, the horizontal portion on the lower side of the mounting plate provides good shielding and protection for the spare filter, thereby ensuring the cleanliness of the spare filter.

[0012] Furthermore, a rubber sheet is fixed on the horizontal portion of the lower side of the mounting plate near the upper roller, the top of the rubber sheet is located near the bottom of the filter screen, and the length of the rubber sheet is smaller than the distance between the open chains on both sides.

[0013] By adopting the above technical solution, the rubber sheet shields the space between the horizontal portion of the lower side of the mounting plate and the bottom of the filter screen, further ensuring the cleanliness of the spare filter screen.

[0014] Furthermore, an upper position sensor is fixed on the side wall of the air supply tube near its top, and the upper position sensor is arranged near the upper rotating roller and monitors the position of the C-shaped pallet near the upper rotating roller. A lower position sensor is fixed on the side wall of the air supply tube near its bottom, and the lower position sensor is arranged near the lower rotating roller and monitors the position of the C-shaped pallet near the lower rotating roller.

[0015] Furthermore, an installation groove is provided on the inner bottom wall of the air supply cylinder, and two installation grooves are provided and are respectively located near the two side walls of the air supply cylinder. The driving assembly includes a rotating shaft rotatably installed between the side walls on both sides of the air supply cylinder, a winding wheel fixedly sleeved on the rotating shaft, and a motor fixed on the side wall of the air supply cylinder and used to drive the rotating shaft. Part of the winding wheel is located in the installation groove, and two winding wheels are provided and symmetrically arranged. A traction rope is wound and fixed on the winding wheel, and the end of the traction rope away from the rotating shaft is fixed to a C-shaped clamping plate near the lower rotating roller. Two traction ropes are provided and symmetrically arranged.

[0016] By adopting the above technical solution, the motor drives the rotating shaft to rotate after working, so that the winding wheel rotates, and the winding wheel pulls the C-shaped clamping plate close to the lower rotating roller through the traction rope, so that the open chains on both sides drive the upper sprocket and the lower sprocket to rotate, so that all C-shaped clamping plates and filter screens operate synchronously, and the spare filter screen replaces the dirty filter screen to ensure the filtering effect of the ventilation system.

[0017] Furthermore, a controller electrically connected to the motor, the upper position sensor and the lower position sensor is fixed on the outer wall of the air supply cylinder.

[0018] By adopting the above technical solution, the upper position sensor cooperates with the lower position sensor to monitor the positions of the C-shaped card plate close to the upper roller and the C-shaped card plate close to the lower roller respectively, and transmits the monitoring results to the controller in the form of electrical signals. The controller can accurately ensure the position of the filter used for filtration by controlling the operation of the motor.

[0019] Furthermore, an upper mounting through hole is provided at a position near the fixed end of the mounting plate on the top of the air supply tube, and an upper cover plate is detachably connected to the upper mounting through hole. A lower mounting through hole is provided at a position near the lower rotating roller on the bottom of the air supply tube, and a bottom cover is detachably connected to the lower mounting through hole. The width of the upper mounting through hole and the width of the lower mounting through hole are both greater than the width of the filter.

[0020] By adopting the above technical solution, the setting of the upper cover makes it easy for the staff to add a new filter to the air supply tube by respectively clamping the two sides of the filter with the sides of the two C-shaped clamps in the same group that are close to each other. The setting of the bottom cover allows the staff to open the bottom cover after all the filters are used up, and then remove the filters except the last one in turn. Through the cooperation of the driving assembly and the elastic rope, the last filter can be driven to move to a position close to the upper installation through hole, so that the last filter can be replaced.

[0021] In summary, the present invention has the following beneficial effects:

[0022] 1. This application changes the situation in the traditional technology where a cleaning brush is used to clean the filter, which accelerates the damage of the filter, and reduces the large amount of dust generated by cleaning the filter, thereby ensuring the air quality of the air supply system;

[0023] 2. In this application, the horizontal part of the lower side of the mounting plate provides good shielding and protection for the spare filter, ensuring the cleanliness of the spare filter;

[0024] 3. In the present application, after the motor works, it drives the rotating shaft to rotate, thereby causing the winding wheel to rotate. The winding wheel pulls the C-shaped card plate close to the lower rotating roller through the traction rope, so that the open chains on both sides drive the upper sprocket and the lower sprocket to rotate, so that all the C-shaped card plates and filter screens can operate synchronously, so that the spare filter screen can replace the dirty filter screen to ensure the filtering effect of the ventilation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal structure of the air supply tube used to highlight the embodiment of the present invention;

[0027] Figure 3 yes Figure 2 A schematic diagram of the structure from another perspective;

[0028] Figure 4 is a schematic structural diagram of an embodiment of the present invention for highlighting an upper sprocket;

[0029] Figure 5 yes Figure 4 The enlarged schematic diagram of point A in the middle;

[0030] Figure 6 yes Figure 2 The enlarged schematic diagram of point B in the middle;

[0031] Figure 7 It is a structural schematic diagram for highlighting the filtering mechanism in an embodiment of the present invention;

[0032] Figure 8 yes Figure 7 The enlarged schematic diagram of the center C;

[0033] Fig. 9 is a schematic structural diagram of the connection between a C-shaped pallet and an open chain in an embodiment of the present invention;

[0034] Fig.10 yes Fig. 9 Enlarged schematic diagram of point D in the middle.

[0035] In the figure: 1. air supply cylinder; 11. upper rotating roller; 12. lower rotating roller; 13. upper position sensor; 14. lower position sensor; 15. mounting groove; 16. controller; 17. upper mounting through hole; 18. lower mounting through hole; 2. mounting plate; 21. rubber sheet; 3. filtering mechanism; 31. mounting assembly; 311. upper sprocket; 312. lower sprocket; 313. open chain; 314. C-shaped card plate; 315. elastic rope; 32. filtering assembly; 321. filter net; 33. driving assembly; 331. rotating shaft; 332. winding wheel; 333. motor; 334. traction rope; 4. upper cover plate; 5. bottom cover. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0037] like Figure 1-10As shown, the embodiment of the present application discloses a green building ventilation system with intelligent adjustment function, including an air supply cylinder 1, upper rotating rollers 11 are rotatably installed on the side walls on both sides of the air supply cylinder 1 near the top of the air supply cylinder 1, lower rotating rollers 12 are rotatably installed on the side walls on both sides of the air supply cylinder 1 near the bottom of the air supply cylinder 1, a mounting plate 2 is fixed at a position at the top of the air supply cylinder 1 away from the upper rotating roller 11, a filtering mechanism 3 is arranged in the air supply cylinder 1, the filtering mechanism 3 includes a mounting assembly 31, a filtering assembly 32 and a driving assembly 33, the filtering assembly 32 is arranged on the mounting assembly 31, the filtering assembly 32 is composed of a plurality of filter screens 321 connected in sequence, one of the filter screens 321 is vertical, and the surface of the filter screen 321 is simultaneously in contact with the roller surface of the upper rotating roller 11 and the roller surface of the lower rotating roller 12, and the driving assembly 33 is used to drive the spare new filter screen 321 to replace the dirty filter screen 321.

[0038] The surface of the working filter 321 is simultaneously in contact with the roller surface of the upper rotating roller 11 and the roller surface of the lower rotating roller 12 to filter the air transported through the air supply tube 1. After a period of use, the user can drive the spare new filter 321 to replace the dirty filter 321 through the driving component 33. Since multiple filters 321 are arranged in the air supply tube 1, the time for centralized replacement or cleaning of the filters 321 is extended, and the situation in which the traditional technology of using a cleaning brush to clean the filters 321 accelerates the damage of the filters 321, and reduces the large amount of dust generated by cleaning the filters 321, thereby ensuring the air quality of the air supply system.

[0039] The mounting assembly 31 includes an upper sprocket 311 fixedly mounted on the central axis of the upper rotating roller 11, a lower sprocket 312 fixedly mounted on the central axis of the lower rotating roller 12, and an open chain 313 meshed with the upper sprocket 311 and the lower sprocket 312. The upper sprocket 311, the lower sprocket 312, and the open chain 313 are each provided with two and symmetrically distributed at both ends of the upper rotating roller 11. The mounting assembly 31 also includes a C-shaped card plate 314 fixed between the open chains 313 on both sides. The C-shaped card plates 314 are arranged in groups. The number of groups of card plates 314 is equal to the number of filter screens 321. Both sides of the filter screens 321 are respectively engaged with the sides of two C-shaped card plates 314 in the same group that are close to each other. An elastic rope 315 is fixed to the C-shaped card plate 314 on the side close to the fixed point of the mounting plate 2. The end of the elastic rope 315 away from the C-shaped card plate 314 is fixed to the mounting plate 2. There are multiple elastic ropes 315. The driving assembly 33 is connected to the C-shaped card plate 314 close to the lower rotating roller 12 and is used to drive the clean filter screen 321 to replace the dirty filter screen 321.

[0040] Multiple elastic ropes 315 are fixed to the C-shaped card plate 314 away from the upper rotating roller 11. The multiple elastic ropes 315 cooperate with the driving assembly 33 to ensure the stability of the filter screen 321 during use. When replacing a new filter screen 321, the driving assembly 33 pulls the C-shaped card plate 314 close to the lower rotating roller 12 to make the dirty filter screen 321 rotate with the open chain 313 until the driving assembly 33 is closed when a new spare filter screen 321 is replaced.

[0041] The cross section of the mounting plate 2 is Z-shaped, and the filter screen 321 that is not connected to the roller surface of the upper rotating roller 11 and the roller surface of the lower rotating roller 12 is located between the horizontal portion of the lower side of the mounting plate 2 and the inner top wall of the air supply tube 1, and the end of the elastic rope 315 away from the C-shaped clamping plate 314 is fixed to the vertical section of the mounting plate 2. The horizontal portion of the lower side of the mounting plate 2 provides good shielding and protection for the spare filter screen 321, ensuring the cleanliness of the spare filter screen 321.

[0042] A rubber sheet 21 is fixed to the horizontal portion of the lower side of the mounting plate 2 near the upper roller 11, the top of the rubber sheet 21 is located near the bottom of the filter screen 321, and the length of the rubber sheet 21 is less than the distance between the open chains 313 on both sides. The rubber sheet 21 blocks the space between the horizontal portion of the lower side of the mounting plate 2 and the bottom of the filter screen 321, further ensuring the cleanliness of the spare filter screen 321.

[0043] An upper position sensor 13 is fixed on the side wall of the air supply tube 1 near its top, and the upper position sensor 13 is arranged near the upper rotating roller 11 and monitors the position of the C-shaped card plate 314 near the upper rotating roller 11. A lower position sensor 14 is fixed on the side wall of the air supply tube 1 near its bottom, and the lower position sensor 14 is arranged near the lower rotating roller 12 and monitors the position of the C-shaped card plate 314 near the lower rotating roller 12.

[0044] A mounting groove 15 is provided on the inner bottom wall of the air supply cylinder 1, and two mounting grooves 15 are respectively located near the two side walls of the air supply cylinder 1. The driving assembly 33 includes a rotating shaft 331 rotatably installed between the side walls on both sides of the air supply cylinder 1, a winding wheel 332 fixedly sleeved on the rotating shaft 331, and a motor 333 fixed on the side wall of the air supply cylinder 1 and used for driving the rotating shaft 331. Part of the winding wheel 332 is located in the mounting groove 15, and two winding wheels 332 are provided and symmetrically arranged. A traction rope 334 is wound and fixed on the winding wheel 332, and the end of the traction rope 334 away from the rotating shaft 331 is fixed to the C-shaped clamping plate 314 near the lower rotating roller 12, and two traction ropes 334 are provided and symmetrically arranged. After the motor 333 starts working, it drives the rotating shaft 331 to rotate, so that the winding wheel 332 rotates. The winding wheel 332 pulls the C-shaped clamping plate 314 close to the lower rotating roller 12 through the traction rope 334, so that the open chains 313 on both sides drive the upper sprocket 311 and the lower sprocket 312 to rotate, so that all the C-shaped clamping plates 314 and the filter screens 321 operate synchronously, so that the spare filter screen 321 replaces the dirty filter screen 321 to ensure the filtering effect of the ventilation system.

[0045] It is worth noting that: the outer wall of the air supply cylinder 1 is fixed with a controller 16 electrically connected to the motor 333, the upper position sensor 13 and the lower position sensor 14. The upper position sensor 13 cooperates with the lower position sensor 14 to monitor the position of the C-shaped card plate 314 close to the upper roller 11 and the C-shaped card plate 314 close to the lower roller 12 respectively, and transmits the monitoring result to the controller 16 in the form of an electrical signal. The controller 16 can accurately ensure the position of the filter screen 321 used for filtering by controlling the operation of the motor 333, thereby ensuring the filtering effect.

[0046] An upper mounting through hole 17 is provided at a position near the fixed end of the mounting plate 2 at the top of the air supply tube 1, and an upper cover plate 4 is detachably connected to the upper mounting through hole 17. A lower mounting through hole 18 is provided at a position near the lower rotating roller 12 at the bottom of the air supply tube 1, and a bottom cover 5 is detachably connected to the lower mounting through hole 18. The width of the upper mounting through hole 17 and the width of the lower mounting through hole 18 are both greater than the width of the filter 321.

[0047] The upper cover 4 is provided to facilitate the staff to add a new filter 321 into the air supply tube 1 by respectively clamping the two sides of the filter 321 with the two C-shaped clamps 314 of the same group that are close to each other. The bottom cover 5 is provided so that after all the filters 321 are used, the staff can open the bottom cover 5 and remove the filters 321 except the last one used for filtering in sequence. Through the cooperation of the driving assembly 33 and the elastic rope 315, the last filter 321 used for filtering can be driven to move to a position close to the upper mounting through hole 17, so that the last filter 321 used for filtering can be replaced.

[0048] The use principle of a green building ventilation system with intelligent adjustment function in the present embodiment is as follows: the surface of the working filter 321 is simultaneously in contact with the roller surface of the upper rotating roller 11 and the roller surface of the lower rotating roller 12 to filter the air delivered through the air supply tube 1. After a period of use, the user can drive the spare new filter 321 to replace the dirty filter 321 through the driving component 33. Since multiple filter screens 321 are arranged in the air supply tube 1, the time for centralized replacement or cleaning of the filter screens 321 is extended, which changes the situation in which the traditional technology of using a cleaning brush to clean the filter screen 321 accelerates the damage of the filter screen 321, and reduces the large amount of dust generated by cleaning the filter screen 321, thereby ensuring the air quality of the air supply system.

[0049] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A green building ventilation system with intelligent adjustment function, characterized by: The invention comprises an air supply tube (1), wherein upper rotating rollers (11) are rotatably mounted on the side walls of both sides of the air supply tube (1) at positions close to the top of the air supply tube (1), lower rotating rollers (12) are rotatably mounted on the side walls of both sides of the air supply tube (1) at positions close to the bottom of the air supply tube (1), a mounting plate (2) is fixed at a position of the top of the air supply tube (1) away from the upper rotating rollers (11), a filtering mechanism (3) is arranged in the air supply tube (1), and the filtering mechanism (3) comprises a mounting assembly (31), A filter assembly (32) and a drive assembly (33), wherein the filter assembly (32) is arranged on a mounting assembly (31), and the filter assembly (32) is formed by a plurality of filter screens (321) connected in sequence, wherein one of the filter screens (321) is vertical, and the surface of the filter screen (321) is in contact with the roller surface of the upper rotating roller (11) and the roller surface of the lower rotating roller (12) at the same time, and the drive assembly (33) is used to drive a spare new filter screen (321) to replace a dirty filter screen (321).

2. The green building ventilation system with intelligent adjustment function according to claim 1 is characterized in that: The installation assembly (31) comprises an upper sprocket (311) fixedly mounted on the central axis of the upper rotating roller (11), a lower sprocket (312) fixedly mounted on the central axis of the lower rotating roller (12), and an open chain (313) meshed with both the upper sprocket (311) and the lower sprocket (312), wherein the upper sprocket (311), the lower sprocket (312), and the open chain (313) are each provided with two and symmetrically distributed at both ends of the upper rotating roller (11), and the installation assembly (31) further comprises a C-shaped card plate (314) fixed between the open chains (313) on both sides, wherein the C-shaped card plates (314) are arranged in groups, and the C-shaped card plates (314) are arranged in groups. The number of groups of card plates (314) is equal to the number of filter screens (321); the two sides of the filter screens (321) are respectively engaged with the sides of two C-shaped card plates (314) in the same group that are close to each other; an elastic rope (315) is fixed on the C-shaped card plate (314) close to the fixing point of the mounting plate (2); the end of the elastic rope (315) away from the C-shaped card plate (314) is fixed to the mounting plate (2); a plurality of elastic ropes (315) are provided; the driving assembly (33) is connected to the C-shaped card plate (314) close to the lower rotating roller (12) and is used to drive a clean filter screen (321) to replace a dirty filter screen (321).

3. The green building ventilation system with intelligent adjustment function according to claim 2 is characterized by: The cross section of the mounting plate (2) is Z-shaped, and the filter screens (321) that are not connected to the roller surfaces of the upper rotating roller (11) and the lower rotating roller (12) are located between the horizontal portion of the lower side of the mounting plate (2) and the inner top wall of the air supply cylinder (1), and the end of the elastic rope (315) away from the C-shaped clamping plate (314) is fixed to the vertical section of the mounting plate (2).

4. The green building ventilation system with intelligent adjustment function according to claim 3 is characterized by: A rubber sheet (21) is fixed to a position close to the upper rotating roller (11) at the horizontal portion of the lower side of the mounting plate (2), the top of the rubber sheet (21) is located close to the bottom of the filter screen (321), and the length of the rubber sheet (21) is less than the distance between the open chains (313) on both sides.

5. The green building ventilation system with intelligent adjustment function according to claim 4 is characterized by: An upper position sensor (13) is fixed on the side wall of the air supply tube (1) near its top, and the upper position sensor (13) is arranged near the upper rotating roller (11) and monitors the position of the C-shaped card plate (314) near the upper rotating roller (11). A lower position sensor (14) is fixed on the side wall of the air supply tube (1) near its bottom, and the lower position sensor (14) is arranged near the lower rotating roller (12) and monitors the position of the C-shaped card plate (314) near the lower rotating roller (12).

6. The green building ventilation system with intelligent adjustment function according to claim 5 is characterized by: The inner bottom wall of the air supply cylinder (1) is provided with a mounting groove (15), two mounting grooves (15) are provided and are respectively located near the two side walls of the air supply cylinder (1), the driving assembly (33) comprises a rotating shaft (331) rotatably installed between the side walls on both sides of the air supply cylinder (1), a winding wheel (332) fixedly sleeved on the rotating shaft (331), and a motor (333) fixed on the side wall of the air supply cylinder (1) and used for driving the rotating shaft (331), part of the winding wheel (332) is located in the mounting groove (15), two winding wheels (332) are provided and are symmetrically arranged, a traction rope (334) is wound around and fixed on the winding wheel (332), one end of the traction rope (334) away from the rotating shaft (331) is fixed to a C-shaped clamping plate (314) near the lower rotating roller (12), and two traction ropes (334) are provided and are symmetrically arranged.

7. The green building ventilation system with intelligent adjustment function according to claim 6 is characterized by: A controller (16) electrically connected to the motor (333), the upper position sensor (13) and the lower position sensor (14) is fixed on the outer wall of the air supply cylinder (1).

8. The green building ventilation system with intelligent adjustment function according to claim 6 is characterized by: An upper mounting through hole (17) is provided at a position near the fixed end of the mounting plate (2) at the top of the air supply tube (1), and an upper cover plate (4) is detachably connected to the upper mounting through hole (17). A lower mounting through hole (18) is provided at a position near the lower rotating roller (12) at the bottom of the air supply tube (1), and a bottom cover (5) is detachably connected to the lower mounting through hole (18). The width of the upper mounting through hole (17) and the width of the lower mounting through hole (18) are both greater than the width of the filter screen (321).

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