Green city construction roof air purification device based on CIM technology

Abstract

The application provides a green city construction roof air purification device based on CIM technology, relates to the technical field of air filtering devices, and comprises a base, a collecting frame is fixed at the top of the base, a plurality of groups of filtering layers are installed on the top of the collecting frame in a superposed manner, air outlet pipes are arranged at the positions of the centers of the filtering layers and the collecting frame, an intermediate layer is arranged between the two groups of filtering layers, the filtering layers are rotatably installed on the intermediate layer through bearings, air inlets are arranged on the outer sides of the filtering layers, air outlets are arranged on the inner sides of the filtering layers, compared with the prior art, the direction of the device can be adjusted through the steering assembly, so that the air inlets of the filtering layers are on the same vertical line and can correspond to the wind direction, the wind power can better drive the dust in the air to be purified, and the multiple filtering layers can be unfolded and used through the cooperation of the driving assembly and the transmission assembly, so that the air in different directions can be purified and the purification efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air filtering device, in particular to a roof air purification device for green city construction based on CIM technology. BACKGROUND

[0002] Green city construction refers to the maximum saving of resources (energy saving, land saving, water saving, material saving) in the whole life cycle of building, protection of environment and reduction of pollution, and providing healthy, applicable and efficient use space for people, and the building harmonious with nature, air pollution is a difficult problem to be solved in green city construction.

[0003] In the prior art, in addition to some indoor air purifiers, some outdoor air purification devices are installed on the outdoor or roof, and the common air purification device is dust adsorption type, which can filter particles, dust and impurities in the air by sucking air, and reduce the particulate pollutants in the air, but because the position of the air inlet of the common air purification device is fixed, the direction of the air inlet is limited, and the direction of the dust production and the air circulation cannot be adjusted adaptively. SUMMARY

[0004] In view of the defects in the prior art, the present application aims to provide a roof air purification device for green city construction based on CIM technology to solve the problems in the background art, and the present application has a novel structure, the direction of the device can be adjusted by the turning assembly, so that when the air inlets of the filter layers are on the same vertical line, the air inlets can correspond to the wind direction, better realizing the wind-driven purification of dust in the air, and the multiple filter layers can be used by the cooperation of the driving assembly and the transmission assembly, so as to purify the air in different directions and improve the purification efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rooftop air purification device for green city construction based on CIM technology, comprising a base, a collection frame fixed to the top of the base, and multiple sets of filter layers stacked on top of the collection frame. An air outlet duct is located at the center of each filter layer and the collection frame. An intermediate layer is provided between two sets of filter layers, and the filter layers are rotatably mounted on the intermediate layer via bearings. An air inlet is located on the outer side of each filter layer, and an air outlet is located on the inner side of each filter layer. The air outlet is rotatably mounted inside the air outlet duct via a collar. Fans are mounted inside both the air inlet and the air outlet via spoke frames. Filter assemblies are installed inside each filter layer, and each filter assembly includes three sets of spacers. The filter is a ring-shaped screen, with connecting rings fixed at the top and bottom of the filter layer. The connecting rings are rotatably mounted on the top and bottom of the filter assembly. The connecting rings have notches at the intervals of the filter assembly. A transmission assembly is installed inside the air outlet pipe. The transmission assembly includes a drive shaft, which is rotatably mounted on the bottom of the air outlet pipe by a motor. A drive component is provided at the upper end of the drive shaft. The drive component includes a vertical plate, the bottom of which is rotatably mounted on the base by a collar. The vertical plate is fixedly connected to the filter layer. The vertical plate is in contact with one side of the air inlet. A steering assembly is provided on the surface of the base. The steering assembly includes a wind vane. The wind vane is rotatably mounted on the top of the drive shaft by a bearing.

[0006] Furthermore, the steering assembly includes a gear ring, a gear ring is fixed on the bottom surface of the vertical plate, and a drive gear is meshed with one side of the gear ring. A drive motor is fixed at the bottom of the drive gear on the base, and the output end of the drive motor is fixedly connected to the drive gear. The wind vane is rotatably sleeved on a vertical shaft, and the top of the vertical shaft to which the wind vane is rotatably connected is fixedly connected to the top inner wall of the air outlet pipe. An angle sensor is fixed at the top center of the wind vane.

[0007] Furthermore, the drive assembly also includes a rotating plate. The vertical axis of the wind vane has a built-in drive motor, and the output end of the drive motor is fixed to the rotating plate. The rotating plate is slidably mounted on the top cover of the top of the filter layer. A connecting frame is fixed to the outer end of the rotating plate, and the bottom of the connecting frame is fixedly connected to one side of the bottom filter layer. A pull rope is fixed between the air inlets of adjacent filter layers.

[0008] Furthermore, a transmission belt is installed at the fan drive shaft inside the air outlet, and the pulley at the other end of the transmission belt is rotatably installed at the top of the air outlet. The belt of the transmission belt slides out of the air outlet housing, and a shaft is fixed to the pulley at the upper end of the transmission belt.

[0009] Further, the transmission assembly further comprises a driving bevel gear, the surface of the driving shaft is fixed with the driving bevel gear corresponding to the position of each air outlet, one side of the driving bevel gear is engaged with a driven bevel gear, the back of the driven bevel gear is installed with a fixed plate, and the fixed plate is fixed on the connecting layer between the two groups of air outlets.

[0010] Further, the back of the fixed plate is rotatably installed with a clamping frame, the clamping frame is fixedly connected with the driven bevel gear, one end of the shaft rod towards the clamping frame is fixed with a clamping block, the clamping block is slidably clamped in the clamping frame, and the clamping frame and the clamping block have the same shape as the rotating path of the air outlet.

[0011] Further, the filter layer is provided with a channel at the position corresponding to the air inlet and the air outlet, the upper end and the lower end of the channel of the filter layer are covered by the connecting ring, one side of the channel of the filter layer is fixed with a scraper between the intervals of the screen assembly, and the other side of the channel of the filter layer is fixed with an electric telescopic plate.

[0012] Further, the connecting ring at the bottom of the filter layer is provided with a bottom telescopic plate at the interval of the screen assembly, and the elongated end of the bottom telescopic plate is fixedly connected with the elongated end of the electric telescopic plate.

[0013] Further, the bottom of the screen assembly is fixed with a fixed rod, and the two ends of the fixed rod are fixedly connected with the two sides of the connecting layer.

[0014] Further, the bottom of the connecting ring, the electric telescopic plate and the scraper is provided with an elastic rubber strip, and the fixed rod can pass through the position of the rubber strip.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. When the electric telescopic plate is retracted, the electric telescopic plate also drives the bottom telescopic plate to retract, at this time, the side close to the screen of the channel and the bottom are opened, and when the connecting ring rotates around the screen assembly with the driving assembly or the transmission assembly, the surface of the screen is cleaned by the scraper, the adsorbed dust particles are scraped off, and fall from the bottom to the collection box, the screen assembly is installed through the fixed rod, and there is space for the fixed rod to move at the bottom of the connecting ring of the filter layer and the bottom of the scraper and the electric telescopic plate, so that the movement interference caused by the fixed rod during the rotation of the filter layer can be avoided, the fixed rod can ensure that each layer of the screen assembly is fixedly installed on a plane and maintains stability, and in normal use, the bottom of the electric telescopic plate and the scraper is blocked by the elastic rubber strip, so that air and dust can be prevented from flowing out.

[0017] 2. The six groups of filter layers of the present application can be expanded into six equidistantly distributed filter layers by the driving assembly, and the positions of the air inlets are also equidistantly arranged, only the upper and lower heights are different, and for the same reason, the driving assembly can also combine the filter layers into a vertical direction, and after expanding the filter layers, the top shafts of the air outlets of the remaining five groups are just clamped inside the clamping frame through the movement of the clamping block, which can drive the driving bevel gear to rotate and mesh with the driven bevel gear, and then drive the fan at the position of the air outlet to rotate through the transmission of the transmission belt. This state is to purify the surrounding environment independently, and one driving shaft is driven, because of the arrangement of the driven bevel gear at the position on the surface of the driving shaft, the connection after the rotation of the filter layers is facilitated.

[0018] 3. The inner motor of the vertical shaft drives the rotating plate to rotate, so that the connecting frame pulls the bottommost filter layer to rotate, because each group of filter layers is connected by a pull rope, so the remaining groups will also be pulled one by one, and gradually expanded into six equal parts, the air inlet is directed to the surrounding, when storage, through the pushing of the connecting frame and the blocking of the vertical plate, all the filter layers that are rotated and opened will gradually gather on one side of the vertical plate to present a vertical row of positions, so that the vertical row of air inlets correspond to the wind direction of the environmental wind, and the fan in the air inlet is blown by the environmental wind to rotate, and air is introduced into the filter screen for processing.

[0019] 4. The present application determines the wind direction through the wind vane, detects the angle of the wind vane offset through the angle sensor, and transmits the signal to the driving motor, which drives the driving gear to rotate and mesh with the gear ring, so that the vertical plate drives all the filter layers to rotate, and the driving shaft and the air outlet pipe also rotate synchronously, so that the position of the air inlet corresponds to the natural wind.

[0020] 5. Compared with the prior art, the direction of the device can be adjusted through the steering assembly, so that when the air inlets of the filter layers are on the same vertical line, they can correspond to the wind direction, better realizing the purification of dust in the air by wind power, and through the cooperation of the driving assembly and the transmission assembly, multiple filter layers can be expanded for use, and air in different directions can be purified, improving the purification efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the overall structure schematic diagram of the roof air purification device for green city construction based on CIM technology of the present application;

[0022] Figure 2 It is the steering assembly structure schematic diagram of the roof air purification device for green city construction based on CIM technology of the present application;

[0023] Figure 3 It is the filter layer and collection frame separation schematic diagram of the roof air purification device for green city construction based on CIM technology of the present application;

[0024] Figure 4 The outflow pipe internal structure diagram of the roof air purification device for green city construction based on the CIM technology of the application;

[0025] Figure 5 The outflow port and transmission assembly connection diagram of the roof air purification device for green city construction based on the CIM technology of the application;

[0026] Figure 6 The transmission assembly structure diagram of the roof air purification device for green city construction based on the CIM technology of the application;

[0027] Figure 7 The filter layer internal structure diagram of the roof air purification device for green city construction based on the CIM technology of the application;

[0028] Figure 8 The filter layer and filter screen assembly separation diagram of the roof air purification device for green city construction based on the CIM technology of the application;

[0029] Figure 9 The air inlet and air outlet connection diagram of the roof air purification device for green city construction based on the CIM technology of the application;

[0030] Figure 10 The electric telescopic plate installation diagram of the roof air purification device for green city construction based on the CIM technology of the application.

[0031] In the figure: 1, base; 11, collection frame; 12, outflow pipe; 2, turning assembly; 21, drive motor; 22, drive gear; 23, gear ring; 24, wind vane; 25, angle sensor; 3, filter layer; 31, air inlet; 32, air outlet; 33, fan; 34, transmission belt; 35, shaft; 36, connecting ring; 37, scraper; 38, electric telescopic plate; 39, bottom telescopic plate; 310, rubber strip; 4, transmission assembly; 41, drive shaft; 42, driving bevel gear; 43, fixed plate; 44, driven bevel gear; 45, clamping frame; 46, clamping block; 5, drive assembly; 51, vertical plate; 52, pull rope; 53, turning plate; 54, connecting frame; 6, filter screen assembly; 61, fixed rod. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, purposes and effects realized by the application easy to understand, the application is further described below in combination with specific embodiments.

[0033] Please refer to Figures 1 to 10The application provides a technical scheme: a roof air purification device for green city construction based on CIM technology, which comprises a base 1, a collecting frame 11 is fixed at the top of the base 1, a plurality of filter layers 3 are installed on the top of the collecting frame 11 in a superposed manner, an air outlet pipe 12 is arranged at the center position of the filter layer 3 and the collecting frame 11, an intermediate layer is arranged between the two filter layers 3, the filter layer 3 is rotatably installed on the intermediate layer through a bearing, an air inlet 31 is arranged on the outer side of the filter layer 3, an air outlet 32 is arranged on the inner side of the filter layer 3, the air outlet 32 is rotatably installed in the air outlet pipe 12 through a shaft ring, a fan 33 is installed in the air inlet 31 and the air outlet 32 through a spoke frame, a filter screen assembly 6 is installed in the filter layer 3, the filter screen assembly 6 comprises three annular filter screens arranged at intervals, a connecting ring 36 is fixed at the top and the bottom of the filter layer 3, the connecting ring 36 is rotatably installed at the top and the bottom of the filter screen assembly 6, a notch is formed in the connecting ring 36 at intervals corresponding to the filter screen assembly 6, a transmission assembly 4 is installed in the air outlet pipe 12, the transmission assembly 4 comprises a driving shaft 41, the driving shaft 41 is rotatably installed at the bottom of the air outlet pipe 12 through a motor, a driving assembly 5 is arranged at the upper end of the driving shaft 41, the driving assembly 5 comprises a vertical plate 51, the vertical plate 51 is rotatably installed on the base 1 through a shaft ring at the bottom, and the vertical plate 51 is fixedly connected to the connecting layer between the filter layer 3, the vertical plate 51 is in extrusion contact with one side of the air inlet 31, a turning assembly 2 is arranged on the surface of the base 1, the turning assembly 2 comprises a wind vane 24, the wind vane 24 is rotatably installed at the top of the driving shaft 41 through a bearing, when the device is used, the CIM technology is used to detect the environmental wind direction and the air pollution degree in the city system, and the detection result is transmitted to the device, the device is arranged on the roof according to the requirement, when the environment is good, the dust particles in the air can be purified and filtered through the driving of the natural wind, when the air quality is poor, the transmission assembly 4 and the driving assembly 5 rotate to open the filter layer 3, and the particles in the surrounding air are automatically adsorbed and filtered, so that rapid and efficient air purification treatment is realized.

[0034] The steering assembly 2 comprises a gear ring 23, the bottom surface of the vertical plate 51 is fixed with the gear ring 23, and the gear ring 23 is engaged with a drive gear 22 on one side, the base 1 is located at the bottom of the drive gear 22 and is fixed with a drive motor 21, and the output end of the drive motor 21 is fixedly connected with the drive gear 22, the wind vane 24 is rotatably sleeved on a vertical shaft, and the top of the vertical shaft rotatably connected with the wind vane 24 is fixedly connected with the top inner wall of the air outlet pipe 12, the angle sensor 25 is fixed at the top center of the wind vane 24, the wind direction is determined by the wind vane 24, the angle of the wind vane 24 is detected by the angle sensor 25, and the signal is transmitted to the drive motor 21, the drive motor 21 drives the drive gear 22 to rotate and engage with the gear ring 23, so that the vertical plate 51 pushes all the filter layers 3 to rotate, and the drive shaft 41 and the air outlet pipe 12 also rotate synchronously, so that the position of the air inlet 31 corresponds to the natural wind.

[0035] The driving assembly 5 further comprises a rotating plate 53, the vertical shaft of the wind vane 24 is provided with a drive motor, and the output end of the drive motor is fixed with the rotating plate 53, the rotating plate 53 is slidingly installed on the top cover of the topmost filter layer 3, the outer end of the rotating plate 53 is fixed with a connecting frame 54, and the bottom of the connecting frame 54 is fixedly connected with one side of the bottommost filter layer 3, a pull rope 52 is fixed between the air inlets 31 of adjacent filter layers 3, the internal motor of the vertical shaft drives the rotating plate 53 to rotate, so that the connecting frame 54 pulls the bottommost filter layer 3 to rotate, because each group of filter layers 3 are connected by the pull rope 52, so the remaining groups are also pulled one by one, and gradually expanded to six equal parts, the air inlet 31 is directed to the surrounding, when storage, through the pushing of the connecting frame 54 and the blocking of the vertical plate 51, all the filter layers 3 which are rotated and opened will gradually gather on one side of the vertical plate 51 to present a vertical row of positions, so as to facilitate the vertical row of air inlets 31 to correspond to the wind direction of the environment wind, the fan 33 in the air inlet 31 is blown by the environment wind to rotate, and air is introduced into the filter screen for processing.

[0036] The fan 33 drive shaft 41 inside the air outlet 32 is installed with a transmission belt 34, and the other end of the transmission belt 34 is rotatably installed on the top of the air outlet 32, the belt of the transmission belt 34 slides out of the air outlet 32 shell, the pulley at the upper end of the transmission belt 34 is fixed with a shaft 35, the transmission assembly 4 further comprises a driving bevel gear 42, the surface of the driving shaft 41 is fixed with a driving bevel gear 42 corresponding to the position of each air outlet 32, one side of the driving bevel gear 42 is engaged with a driven bevel gear 44, the back of the driven bevel gear 44 is installed with a fixed plate 43, the fixed plate 43 is fixed on the connecting layer between the two groups of air outlets 32, the back of the fixed plate 43 is rotatably installed with a clamping frame 45, and the clamping frame 45 is fixedly connected with the driven bevel gear 44, one end of the shaft 35 towards the clamping frame 45 is fixed with a clamping block 46, the clamping block 46 is slidingly connected in the clamping frame 45, the shape of the clamping frame 45 and the clamping block 46 is the same as the rotating path of the air outlet 32, the bottom of the air outlet 32 is actually installed with a motor for driving the driving shaft 41 to rotate, here, except that the position of the top driven bevel gear 44 and the clamping frame 45 is fixed, the following is corresponding to the position after the filter layer 3 rotates, in short, six groups of filter layers 3 can be expanded into six equidistantly distributed filter layers 3 by the driving assembly 5, and the position of the air inlet 31 is also equidistantly arranged, only the height is different, by analogy, the driving assembly 5 can also combine the filter layers 3 into one vertical direction, and after expanding the filter layers 3, the shaft 35 at the top of the remaining five groups of air outlets 32 is just clamped in the clamping frame 45 through the movement of the clamping block 46, the driving shaft 41 can drive the driving bevel gear 42 to rotate and engage with the driven bevel gear 44, and then drive the fan 33 at the position of the air outlet 32 to rotate through the transmission of the transmission belt 34, which is in the state of purifying the surrounding environment by itself, and is driven by one driving shaft 41, because of the setting of the driven bevel gear 44 on the surface of the driving shaft 41, it is convenient to connect the filter layers 3 after rotating.

[0037] The filter layer 3 is provided with a channel at the position corresponding to the air inlet 31 and the air outlet 32, the upper end and the lower end of the channel of the filter layer 3 are covered by the connecting ring 36, one side of the channel of the filter layer 3 is fixed with the scraper 37 at the interval between the filter screen assemblies 6, and the other side of the channel of the filter layer 3 is fixed with the electric telescopic plate 38, the connecting ring 36 at the bottom of the filter layer 3 is provided with the bottom telescopic plate 39 at the interval of the filter screen assemblies 6, and the elongated end of the bottom telescopic plate 39 is fixedly connected with the elongated end of the electric telescopic plate 38, the bottom of the connecting ring 36, the electric telescopic plate 38 and the scraper 37 is provided with the elastic rubber strip 310, the fixed rod 61 can pass through the position of the rubber strip 310, two connecting rings 36, scrapers 37 and electric telescopic plates 38 form a channel, which can pass through three layers of filter screens after the air sent by the air inlet 31 is sent out from the air outlet 32, in this structure, first, the bottom part is the bottom telescopic plate 39, and the elongated end is connected with the elongated end of the electric telescopic plate 38, so when the electric telescopic plate 38 is retracted, the bottom telescopic plate 39 will also be retracted, at this time, the side close to the filter screen of the channel and the bottom are opened, and when the connecting ring 36 rotates around the filter screen assembly 6 driven by the driving assembly 5 or the transmission assembly 4, the surface of the filter screen is cleaned by the scraper 37, the dust particles adsorbed are scraped off, and fall from the bottom to the collection box, this part of cleaning can also be active cleaning, or can be cleaned every time the filter layer 3 is expanded or retracted, because the interval between the connecting ring 36 and the filter screen assembly 6 is hollow, so the hollow position of the device from top to bottom can make the dust fall into the collection frame 11 inside, and the dust is collected and cleaned, the filter screen assembly 6 is installed through the fixed rod 61, and the bottom of the connecting ring 36 and the scraper 37 and the electric telescopic plate 38 of the filter layer 3 have a space for the movement of the fixed rod 61, which can avoid the movement interference caused by the existence of the fixed rod 61 during the rotation of the filter layer 3, the fixed rod 61 can ensure that each filter screen assembly 6 is fixedly installed on a plane and maintains stability, and the bottom of the electric telescopic plate 38 and the scraper 37 is blocked by the elastic rubber strip 310, which can prevent air and dust from flowing out.

[0038] When the device is used, based on the detection of the environmental wind direction and the detection of the air pollution level in the urban system using the CIM technology, it is transmitted to the device. The device is set on the roof according to the requirements. When the environment is good, the dust particles in the air can be purified and filtered by the driving of natural wind. The wind direction is determined by the wind vane 24. The angle of the wind vane 24 is detected by the angle sensor 25, and the signal is transmitted to the driving motor 21. The driving motor 21 drives the driving gear 22 to rotate and engage with the gear ring 23, so that the vertical plate 51 pushes all the filter layers 3 to rotate. The driving shaft 41 and the air outlet pipe 12 also rotate synchronously, so that the position of the air inlet 31 corresponds to the natural wind. The internal motor of the vertical shaft drives the rotating plate 53 to rotate, so that the connecting frame 54 pulls the bottommost filter layer 3 to rotate. Because each group of filter layers 3 is connected by the pull rope 52, the remaining groups will also be pulled one by one, and gradually expanded to six equal parts, so that the air inlet 31 is directed to the surrounding environment. When it is stored, through the pushing of the connecting frame 54 and the blocking of the vertical plate 51, all the filter layers 3 that are rotated and opened will gradually gather on one side of the vertical plate 51 to present a vertical row of positions, so that the vertical row of air inlets 31 corresponds to the wind direction of the environmental wind. The fan 33 in the air inlet 31 is blown by the environmental wind to rotate, and the air is introduced into the filter screen for treatment. When the air quality is poor, the transmission assembly 4 and the driving assembly 5 rotate the filter layer 3 to open, automatically adsorb and filter the particles in the surrounding environmental air, realize rapid and efficient air purification treatment, and two connecting rings 36, a scraper 37 and an electric telescopic plate 38 form a channel that can pass through three layers of filter screens after the air sent by the air inlet 31 is sent out from the air outlet 32. In this structure, the bottom part is the bottom telescopic plate 39, and the extended end is connected with the extended end of the electric telescopic plate 38, so when the electric telescopic plate 38 is retracted, the bottom telescopic plate 39 will also be retracted. At this time, the side close to the filter screen of the channel and the bottom are opened, and the connecting ring 36 rotates around the filter screen assembly 6 with the driving assembly 5 or the transmission assembly 4. The surface of the filter screen is cleaned by the scraper 37, the adsorbed dust particles are scraped off, and fall into the collection box from the bottom. This part of cleaning can also be active cleaning, or it can be cleaned every time the filter layer 3 is expanded or retracted. Because the connecting ring 36 and the filter screen assembly 6 are spaced apart, the hollow position of the device from top to bottom can supply dust to fall into the collection frame 11 inside for centralized cleaning. The filter screen assembly 6 is installed by the fixed rod 61. The bottom of the connecting ring 36 and the scraper 37 and the electric telescopic plate 38 has a space for the fixed rod 61 to move, which can avoid the movement interference caused by the existence of the fixed rod 61 during the rotation of the filter layer 3. The fixed rod 61 can ensure that each layer of filter screen assembly 6 is fixedly installed on a plane and maintains stability. In normal use, the bottom of the electric telescopic plate 38 and the scraper 37 is blocked by the elastic rubber strip 310, which can prevent air and dust from flowing out.

[0039] The foregoing merely illustrates the principles of the application and various embodiments are now described with reference to the drawings. This application is not limited to the embodiments described but is intended to encompass any and all changes and modifications within the spirit and scope of the underlying principles thereof. Thus, to those skilled in the art, it will be apparent from this disclosure that various modifications and changes can be made in the implementation without departing from the true spirit and scope of the application.

[0040] In addition, it should be understood that although the description herein is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description herein is made only for the sake of clarity, and those skilled in the art should understand the description as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A roof air purification device for green city construction based on CIM technology, comprising a base (1), characterized in that: The top of the base (1) is fixed with a collection frame (11), and the top of the collection frame (11) is stacked with a plurality of filter layers (3), the filter layer (3) and the center of the collection frame (11) are provided with an air outlet pipe (12), two groups of the filter layer (3) are provided with an intermediate layer, and the filter layer (3) is rotatably installed on the intermediate layer, the outer side of the filter layer (3) is provided with an air inlet (31), and the inner side of the filter layer (3) is provided with an air outlet (32), the air outlet (32) is rotatably installed in the air outlet pipe (12), the inside of the air inlet (31) and the air outlet (32) is rotatably installed with a fan (33) through a spoke frame, the inside of the filter layer (3) is rotatably installed with a filter screen assembly (6), the filter screen assembly (6) comprises three groups of annular filter screens, the top and bottom of the filter layer (3) are fixedly connected with a connecting ring (36), and the connecting ring (36) is rotatably installed on the top and bottom of the filter screen assembly (6), the connecting ring (36) is provided with a notch at the interval of the filter screen assembly (6), the inside of the air outlet pipe (12) is rotatably installed with a transmission assembly (4), the transmission assembly (4) comprises a driving shaft (41), the driving shaft (41) is rotatably installed at the bottom of the air outlet pipe (12), the upper end of the driving shaft (41) is provided with a driving assembly (5), the driving assembly (5) comprises a vertical plate (51), the bottom of the vertical plate (51) is rotatably installed on the base (1), and the connecting layer between the vertical plate (51) and the filter layer (3) is fixedly connected, one side of the vertical plate (51) and the air inlet (31) are in extrusion contact, the surface of the base (1) is provided with a steering assembly (2), the steering assembly (2) comprises a wind vane (24), the top of the driving shaft (41) is rotatably installed with a wind vane (24), the steering assembly (2) comprises a gear ring (23), the bottom surface of the vertical plate (51) is fixedly connected with a gear ring (23), and one side of the gear ring (23) is rotatably connected with a driving gear (22), the bottom of the base (1) is fixedly connected with a driving motor (21), and the output end of the driving motor (21) is rotatably connected with the driving gear (22), the wind vane (24) is rotatably connected on a vertical shaft, and the top of the vertical shaft rotatably connected with the wind vane (24) is fixedly connected with the top inner wall of the air outlet pipe (12), the top center of the wind vane (24) rotatably connected is fixedly connected with an angle sensor (25), the driving assembly (5) further comprises a rotating plate (53), the vertical shaft of the wind vane (24) is rotatably connected with a driving motor, and the output end of the driving motor is fixedly connected with a rotating plate (53), the rotating plate (53) is rotatably connected with a connecting frame (54), and the bottom of the connecting frame (54) is rotatably connected with one side of the bottom filter layer (3), the air inlets (31) between adjacent filter layers (3) are fixedly connected with a pull rope (52).

2. The green city construction roof air purification device based on the CIM technology according to claim 1, characterized in that: The driving shaft (41) of the fan (33) inside the air outlet (32) is provided with a transmission belt (34), and the other end of the transmission belt (34) is rotatably provided with a pulley on the top of the air outlet (32), the belt of the transmission belt (34) slides out of the shell of the air outlet (32), and the pulley at the upper end of the transmission belt (34) is fixed with a shaft rod (35).

3. The green city construction roof air purification device based on the CIM technology according to claim 2, characterized in that: The transmission assembly (4) further comprises a driving bevel gear (42), and the surface of the driving shaft (41) is fixed with a driving bevel gear (42) corresponding to the position of each air outlet (32), one side of the driving bevel gear (42) is engaged with a driven bevel gear (44), the back of the driven bevel gear (44) is provided with a fixed plate (43), and the fixed plate (43) is fixed on the connecting layer between the two groups of air outlets (32).

4. The green city construction roof air purification device based on the CIM technology according to claim 3, characterized in that: The back of the fixed plate (43) is rotatably provided with a clamping frame (45), and the clamping frame (45) is fixedly connected with the driven bevel gear (44), one end of the shaft rod (35) towards the clamping frame (45) is fixedly connected with a clamping block (46), the clamping block (46) is slidably connected in the clamping frame (45), and the clamping frame (45) and the clamping block (46) have the same shape as the rotating path of the air outlet (32).

5. The green city construction roof air purification device based on the CIM technology according to claim 1, characterized in that: The inside of the filter layer (3) is provided with a channel at the corresponding position of the air inlet (31) and the air outlet (32), the upper end and the lower end of the channel of the filter layer (3) are covered by a connecting ring (36), one side of the channel of the filter layer (3) is fixed with a scraper (37) at the interval between the filter screen assemblies (6), and the other side of the channel of the filter layer (3) is fixed with an electric telescopic plate (38).

6. The green city construction roof air purification device based on the CIM technology according to claim 5, characterized in that: The connecting ring (36) at the bottom of the filter layer (3) is provided with a bottom telescopic plate (39) at the interval of the filter screen assembly (6), and the elongated end of the bottom telescopic plate (39) is fixedly connected with the elongated end of the electric telescopic plate (38).

7. The green city construction roof air purification device based on the CIM technology according to claim 6, characterized in that: The bottom of the filter screen assembly (6) is fixed with a fixed rod (61), and the two ends of the fixed rod (61) are fixedly connected with the two sides of the connecting layer.

8. The green city construction roof air purification device based on the CIM technology according to claim 7, characterized in that: The bottom of the connecting ring (36), the electric telescopic plate (38) and the scraper (37) is provided with an elastic rubber strip (310), and the fixed rod (61) passes through the position of the rubber strip (310).

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