Green building energy conservation and emission reduction ventilation structure based on smart city

Abstract

The invention relates to the technical field of energy conservation, emission reduction and ventilation, in particular to an energy conservation, emission reduction and ventilation structure of a green building based on a smart city, which comprises a shell, the shell comprises a cylindrical discharge section, the bottom end of the discharge section is communicated with the indoor space, the top end of the discharge section is communicated with the outdoor space, and a ventilation mechanism is arranged in the discharge section. The ventilation mechanism comprises an exhaust fan, a rain cover is arranged on the upper side of the discharge section and can move up and down, and a collecting mechanism is arranged on the side face of the discharge section in a communicating mode. Through the arrangement of the ventilation mechanism, indoor air can be driven to flow through the rotation of the exhaust fan, so that the indoor air is exhausted out of a room to achieve the ventilation purpose, and through the arrangement of the collection mechanism, when harmful gas in the room leaks, the opening and closing piece opens the communicating pipe, and the rain cover can move downwards, so that the indoor air is discharged out of the room. Therefore, the harmful gas enters the collecting bag through the communicating pipe, and the harmful gas is prevented from being directly discharged outdoors.

Description

Technical Field

[0001] This invention relates to the field of energy conservation, emission reduction, and ventilation technology, specifically to a green building energy conservation, emission reduction, and ventilation structure based on smart cities. Background Technology

[0002] Green building emphasizes energy conservation, land conservation, water conservation, material conservation, and environmental protection throughout the entire building lifecycle. Its core objective is to minimize dependence on natural resources and negative environmental impacts through advanced design and technological means.

[0003] Among the various energy-saving measures in green buildings, the optimization of the ventilation system is particularly crucial. Traditional building ventilation methods mainly include natural ventilation and mechanical ventilation. Natural ventilation relies on wind pressure and thermal pressure, which has the advantages of energy saving and environmental protection, but it is greatly affected by external climate conditions and is difficult to meet the complex and ever-changing indoor air conditioning needs. Mechanical ventilation, on the other hand, has strong controllability, but its energy consumption is high, and long-term operation will significantly increase building operating costs.

[0004] In recent years, with the promotion of the smart city concept and the development of intelligent technologies, the level of building intelligence has been continuously improving. Emerging technologies such as the Internet of Things (IoT), big data analytics, and artificial intelligence (AI) are gradually being applied to building environmental control systems, providing new ideas for optimizing ventilation systems in green buildings. By collecting indoor and outdoor environmental parameters (such as temperature, humidity, carbon dioxide concentration, and wind speed) in real time through sensor networks and combining this data with artificial intelligence algorithms for analysis and prediction, intelligent control of the ventilation system can be achieved, thereby minimizing energy waste while ensuring indoor air quality.

[0005] However, when existing ventilation structures are in use, if harmful gases leak indoors, the ventilation structure will directly exhaust the harmful gases outdoors, which can easily affect the external environment and spread pollution.

[0006] Therefore, a green building energy-saving and emission-reducing ventilation structure based on smart cities is needed to solve the above problems. Summary of the Invention

[0007] To address the aforementioned problem—namely, to resolve the issue that existing ventilation structures directly expel harmful gases outdoors when they leak indoors, potentially impacting the environment—this invention provides a green building energy-saving and emission-reducing ventilation structure based on smart cities.

[0008] A green building energy-saving and emission-reducing ventilation structure based on smart cities includes a shell, the shell including a cylindrical exhaust section, the bottom end of the exhaust section communicating with the interior and the top end communicating with the exterior, a ventilation mechanism including an exhaust fan being provided in the exhaust section, a rain cover being provided on the upper side of the exhaust section, the rain cover being movable up and down and capable of sealing the top end of the exhaust section, a collection mechanism being provided on the side of the exhaust section, the collection mechanism including a connecting pipe connected to the side of the exhaust section, a collection bag being provided on the section of the connecting pipe away from the exhaust section, and an opening and closing element being provided between the exhaust section and the connecting pipe.

[0009] Specifically, when ventilation is needed, the rain cover is located on the upper side of the exhaust section, and the top opening of the exhaust section is open. The opening and closing mechanism closes the connecting pipe, and the exhaust fan rotates, causing indoor air to flow into the lower side of the exhaust section. Then, the indoor air is discharged from the upper side of the exhaust section through the exhaust fan, thereby achieving the purpose of ventilation. When there is a leak of harmful gas indoors, the opening and closing mechanism opens the connecting pipe, and at the same time, the rain cover moves downward to close the upper opening of the exhaust section. At this time, indoor air enters the connecting pipe through the exhaust fan, and then the indoor air enters the collection bag.

[0010] The ventilation system allows the exhaust fan to circulate indoor air, thus ventilating the room to the outside. The collection system also allows for the opening of the connecting pipe when harmful gases leak indoors. The rain cover can then be moved downwards to close the top opening of the exhaust section, allowing the harmful gases to enter the collection bag through the connecting pipe, preventing them from being directly released outdoors and causing pollution.

[0011] Preferably, the opening and closing component includes a lifting shaft, the rain cover is rotatably sleeved on the lifting shaft, a mounting bracket is rotatably sleeved on the lifting shaft, an opening and closing cylinder is fixedly connected to the mounting bracket, the opening and closing cylinder is slidably connected to the inner wall of the discharge section, and the height of the opening and closing cylinder is greater than the diameter of the connecting pipe.

[0012] Specifically, when in use, if the connecting pipe needs to be opened, the lifting shaft is moved downwards. The lifting shaft moves the rain cover downwards, so that the rain cover closes the top opening of the discharge section. At the same time, the lifting shaft moves the opening and closing cylinder downwards through the mounting bracket, so that the opening and closing cylinder opens the connecting pipe.

[0013] By designing the opening and closing mechanism, when harmful gases leak, the lifting shaft can be moved to move the rain cover and opening and closing cylinder downwards, thereby closing the top opening of the exhaust section to prevent indoor harmful gases from leaking into the external environment. It can also open the connecting pipe to draw indoor harmful gases into the collection bag, reducing the concentration of harmful gases indoors.

[0014] Preferably, the bottom end of the lifting shaft is fixedly connected to the exhaust fan, the top end of the lifting shaft extends upward, the top end of the lifting shaft passes through the rain cover, and an impeller is fixedly sleeved on the top end of the lifting shaft.

[0015] Specifically, when in use, when there is wind outside, the wind force drives the impeller to rotate, the impeller drives the lifting shaft to rotate, and the lifting shaft drives the exhaust fan to rotate, so that the exhaust fan drives the indoor air to circulate.

[0016] By designing the impeller, the lifting shaft can rotate under the influence of external wind, which in turn drives the exhaust fan to rotate, achieving the purpose of ventilation. Furthermore, by utilizing external wind power, energy consumption is reduced, thus achieving the goal of energy conservation and emission reduction.

[0017] Preferably, the housing further includes a conical air intake section connected to the lower end of the exhaust section, and a cylindrical fixed section connected to the bottom end of the air intake section. The ventilation mechanism further includes a filter element disposed in the fixed section. The filter element includes a sliding frame slidably disposed in the fixed section. Two semi-circular mounting slots are symmetrically opened in the sliding frame, and a filter plate is detachably connected to each mounting slot.

[0018] Specifically, when in use, the exhaust fan rotates, causing the indoor air to flow into the fixed section. Then, the air is filtered by the filter plate and flows into the intake section.

[0019] By using filters, indoor air is first filtered through the filter plate during ventilation to remove solids and prevent pollutants from being directly released into the outdoor environment.

[0020] Preferably, the sliding frame is provided with a power component, the power component includes a motor fixedly connected to the sliding frame, the output end of the motor is connected to a rotating shaft, the exhaust fan is fixedly sleeved on the top end of the rotating shaft, a fixed frame is rotatably sleeved on the rotating shaft, and the fixed frame is fixedly connected to the inner wall of the discharge section.

[0021] Specifically, when using the exhaust fan, start the motor when it is needed. The motor's output will drive the rotating shaft to rotate, and the rotating shaft will drive the exhaust fan to rotate.

[0022] By configuring the power components, the motor can drive the exhaust fan to rotate, thus ensuring the exhaust fan speed is maintained even when the outside wind force is small, thereby ensuring the ventilation effect.

[0023] Preferably, the power component further includes a connecting sleeve fixedly connected to the output end of the motor. The top of the connecting sleeve has four slots evenly opened along the circumferential direction. The edges of the slots are chamfered. Two fixing rods are symmetrically fixedly connected to the rotating shaft. The fixing rods can enter the slots.

[0024] Specifically, during use, the fixed rod is located in the slot, the output end of the motor drives the connecting sleeve to rotate, the connecting sleeve drives the fixed rod to rotate, and the fixed rod drives the connecting sleeve to rotate. When the outside wind force is strong, the sliding frame moves downward, the sliding frame drives the motor to move downward, the motor drives the connecting sleeve to move downward, so that the motor is disconnected from the rotating shaft.

[0025] The connecting sleeve allows the motor's output end to connect to the rotating shaft, enabling the motor to drive the rotating shaft to rotate. Furthermore, the connecting sleeve allows the connecting sleeve to disconnect from the rotating shaft when the wind force is low, preventing the motor's resistance from affecting the efficiency of wind power utilization when the wind drives the fan to rotate.

[0026] Preferably, the ventilation mechanism further includes two lifting components symmetrically arranged on the sliding frame. Each lifting component includes a fixed motor fixedly connected to the sliding frame. The output end of the fixed motor is fixedly connected to a winding wheel. A pull rope is wound on the winding wheel. One end of the pull rope is fixedly connected to the winding wheel, and the other end of the pull rope is fixedly connected to the air intake section.

[0027] Specifically, when the sliding frame needs to move downwards, the fixed motor is started, which drives the winding wheel to rotate. The winding wheel loosens the pull rope, and the sliding frame moves downwards under its own weight. When the sliding frame needs to move upwards, the fixed motor is started, which drives the winding wheel to rotate. The winding wheel tightens the pull rope, causing the sliding frame to move upwards.

[0028] The lifting mechanism allows the pull rope to be tightened or loosened by the rotation of the fixed motor, thus moving the sliding frame up and down. This facilitates the connection and disconnection of the motor and the rotating shaft. The pull rope also allows the sliding frame to be moved to the ground, making it convenient for staff to replace the filter plates or maintain the motor. Furthermore, in the event of a hazardous gas leak, the sliding frame can be moved to the underside of the fixed section, allowing indoor gas to directly enter the fixed section through the gap between the sliding frame and the fixed section, increasing the gas flow rate and accelerating the collection of hazardous gases.

[0029] Preferably, a connector is provided between the rain cover and the discharge section. The connector includes two symmetrically formed grooves in the discharge section, and a sliding rod is slidably connected in the grooves. The top end of the sliding rod is fixedly connected to the rain cover.

[0030] Specifically, during use, when the lifting shaft rotates, the sliding rod prevents the rain cover from rotating; when the lifting shaft moves up and down, the rain cover drives the sliding rod to slide up and down in the groove.

[0031] Preferably, a tapered guide cylinder is fixedly connected to the lower end of the fixed section.

[0032] The guide tube design facilitates the sliding frame's entry into the fixed section.

[0033] The beneficial effects of this invention are as follows: 1. The present invention, through the setting of the ventilation mechanism, enables the indoor air to circulate by the rotation of the exhaust fan, thereby exhausting the indoor air to the outside and achieving the purpose of ventilation. Furthermore, through the setting of the collection mechanism, when there is a leak of harmful gas indoors, the connecting pipe can be opened by the opening and closing part, and the rain cover can be moved downward to close the top opening of the exhaust section, so that the harmful gas enters the collection bag through the connecting pipe, thereby preventing the harmful gas from being directly discharged to the outside and causing pollution.

[0034] 2. By designing the opening and closing mechanism, when harmful gases leak, the lifting shaft can be moved to move the rain cover and opening and closing cylinder downwards, thereby closing the top opening of the exhaust section to prevent indoor harmful gases from leaking into the external environment. It can also open the connecting pipe to draw indoor harmful gases into the collection bag, reducing the concentration of harmful gases indoors.

[0035] 3. By designing the impeller, the lifting shaft can rotate under the influence of external wind, thereby driving the exhaust fan to rotate and achieving the purpose of ventilation. Furthermore, by using external wind to drive the fan, energy consumption is reduced, thus achieving the goal of energy conservation and emission reduction.

[0036] 4. By setting up the filter, the indoor air can be filtered through the filter plate first during ventilation to remove solids and prevent pollutants from being directly discharged into the outdoor environment.

[0037] 5. By configuring the power components, the motor can drive the exhaust fan to rotate, thus ensuring the exhaust fan speed is maintained even when the outside wind force is small, thereby ensuring the ventilation effect.

[0038] 6. The connecting sleeve allows the motor output to connect to the rotating shaft, enabling the motor to drive the rotating shaft to rotate. Furthermore, the connecting sleeve allows the connecting sleeve to disconnect from the rotating shaft when the wind force is low by moving the sliding frame, thus preventing the wind force from being affected by the motor's resistance when the fan is driven by the wind, which would otherwise affect the efficiency of wind power utilization.

[0039] 7. The lifting mechanism allows the pull rope to be tightened or loosened by the rotation of the fixed motor, thus moving the sliding frame up and down. This facilitates the connection and disconnection of the motor and the rotating shaft. The pull rope also allows the sliding frame to be moved to the ground, making it convenient for staff to replace the filter plates or maintain the motor. Furthermore, in the event of a hazardous gas leak, the sliding frame can be moved to the underside of the fixed section, allowing indoor gas to directly enter the fixed section through the gap between the sliding frame and the fixed section, increasing the gas flow rate and accelerating the collection of hazardous gases. Attached Figure Description

[0040] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is the front view of the present invention; Figure 3 For the present invention Figure 2 Isometric side sectional view at point AA; Figure 4 For the present invention Figure 3 A magnified view of a section at point B in the middle; Figure 5 For the present invention Figure 3 A magnified view of a section at point C; Figure 6 This is the left view of the present invention; Figure 7 For the present invention Figure 6 Isometric side sectional view at point DD; Figure 8 For the present invention Figure 7 A magnified view of a section at point E in the middle.

[0041] In the picture: 11. Housing; 12. Exhaust section; 13. Intake section; 14. Fixed section; 15. Guide cylinder; Ventilation mechanism; 21. Exhaust fan; 22. Opening and closing component; 221. Lifting shaft; 222. Mounting bracket; 223. Opening and closing cylinder; 23. Impeller; 24. Filter element; 241. Sliding frame; 242. Filter plate; 25. Power component; 251. Motor; 252. Rotating shaft; 253. Fixed frame; 254. Connecting sleeve; 255. Slot; 256. Fixed rod; 26. Lifting component; 261. Fixed motor; 262. Winding wheel; 263. Pull rope; 27. Connecting component; 271. Slide groove; 272. Sliding rod; Rain cover; Collection mechanism; 41. Connecting pipe; 42. Collection bag. Detailed Implementation

[0042] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0043] like Figure 1 , 2 As shown in Figure 3, this embodiment of the invention discloses a green building energy-saving and emission-reduction ventilation structure based on smart cities, including a shell 1. The shell 1 includes a cylindrical exhaust section 11. The bottom end of the exhaust section 11 is connected to the interior, and the top end of the exhaust section 11 is connected to the exterior. A ventilation mechanism 2 is provided in the exhaust section 11. The ventilation mechanism 2 includes an exhaust fan 21. A rain cover 3 is provided on the upper side of the exhaust section 11. The rain cover 3 can move up and down and can close the top end of the exhaust section 11. A collection mechanism 4 is connected to the side of the exhaust section 11. The collection mechanism 4 includes a connecting pipe 41 connected to the side of the exhaust section 11. A collection bag 42 is connected to a section of the connecting pipe 41 away from the exhaust section 11. An opening and closing member 22 is provided between the exhaust section 11 and the connecting pipe 41.

[0044] Specifically, when ventilation is required, the rain cover 3 is located on the upper side of the exhaust section 11, the top opening of the exhaust section 11 is open, the opening and closing part 22 closes the connecting pipe 41, the exhaust fan 21 rotates, driving the indoor air to flow, so that the indoor air flows into the lower side of the exhaust section 11, and then is discharged from the upper side of the exhaust section 11 through the exhaust fan 21, thereby achieving the purpose of ventilation; when there is a leak of harmful gas indoors, the opening and closing part 22 opens the connecting pipe 41, and at the same time the rain cover 3 moves downward to close the upper opening of the exhaust section 11. At this time, the indoor air enters the connecting pipe 41 through the drive of the exhaust fan 21, and then the indoor air enters the collection bag 42.

[0045] The ventilation mechanism 2 allows the exhaust fan 21 to rotate, causing indoor air to circulate and thus exhaust indoor air to the outside, achieving the purpose of ventilation. The collection mechanism 4 allows the connecting pipe 41 to be opened by the opening and closing part 22 when there is a leak of harmful gas indoors, and the rain cover 3 can be moved downward to close the top opening of the exhaust section 11, so that the harmful gas enters the collection bag 42 through the connecting pipe 41, thereby preventing the harmful gas from being directly discharged to the outside and causing pollution.

[0046] like Figure 7As shown, the opening and closing component 22 includes a lifting shaft 221, the rain cover 3 is rotatably sleeved on the lifting shaft 221, the lifting shaft 221 is rotatably sleeved with a mounting bracket 222, the mounting bracket 222 is fixedly connected with an opening and closing cylinder 223, the opening and closing cylinder 223 is slidably connected to the inner wall of the discharge section 11, and the height of the opening and closing cylinder 223 is greater than the diameter of the connecting pipe 41.

[0047] Specifically, when in use, if the connecting pipe 41 needs to be opened, the lifting shaft 221 is moved downward. The lifting shaft 221 drives the rain cover 3 to move downward, so that the rain cover 3 closes the top opening of the discharge section 11. At the same time, the lifting shaft 221 drives the opening and closing cylinder 223 to move downward through the mounting bracket 222, so that the opening and closing cylinder 223 opens the connecting pipe 41.

[0048] By setting the opening and closing part 22, when harmful gas leaks, the lifting shaft 221 can be moved to drive the rain cover 3 and the opening and closing cylinder 223 to move downward, thereby closing the top opening of the discharge section 11, preventing indoor harmful gas from leaking into the external environment, and opening the connecting pipe 41 to draw indoor harmful gas into the collection bag 42, reducing the indoor harmful gas content.

[0049] like Figure 3 , 7 As shown, the bottom end of the lifting shaft 221 is fixedly connected to the exhaust fan 21, the top end of the lifting shaft 221 extends upward, the top end of the lifting shaft 221 passes through the rain cover 3, and an impeller 23 is fixedly sleeved on the top end of the lifting shaft 221.

[0050] Specifically, when in use, when there is wind outside, the impeller 23 is driven to rotate by the wind force, the impeller 23 drives the lifting shaft 221 to rotate, the lifting shaft 221 drives the exhaust fan 21 to rotate, so that the exhaust fan 21 drives the indoor air to circulate.

[0051] By setting the impeller 23, the lifting shaft 221 can rotate under the action of external wind force, thereby driving the exhaust fan 21 to rotate, achieving the purpose of ventilation. Furthermore, by being driven by external wind force, energy consumption is reduced, thereby achieving the purpose of energy conservation and emission reduction.

[0052] like Figure 2 , 3As shown in Figure 7, the housing 1 further includes a conical air intake section 12 connected to the lower end of the discharge section 11. The bottom end of the air intake section 12 is connected to a cylindrical fixed section 13. The ventilation mechanism 2 further includes a filter element 24 disposed in the fixed section 13. The filter element 24 includes a sliding frame 241 slidably disposed in the fixed section 13. Two semi-circular mounting slots are symmetrically opened in the sliding frame 241, and a filter plate 242 is detachably connected to each mounting slot.

[0053] Specifically, when in use, when the exhaust fan 21 rotates, the exhaust fan 21 drives the indoor air flow, causing the indoor air to flow into the fixed section 13. Then the air flows into the intake section 12 after being filtered by the filter plate 242.

[0054] By setting up the filter element 24, the indoor air can be filtered first through the filter plate 242 during ventilation, filtering out solids in the indoor air and preventing pollutants in the indoor air from being directly discharged into the outdoor environment.

[0055] like Figure 3 , 7 As shown, a power component 25 is provided on the sliding frame 241. The power component 25 includes a motor 251 fixedly connected to the sliding frame 241. The output end of the motor 251 is connected to a rotating shaft 252. The exhaust fan 21 is fixedly sleeved on the top end of the rotating shaft 252. A fixed frame 253 is rotatably sleeved on the rotating shaft 252. The fixed frame 253 is fixedly connected to the inner wall of the discharge section 11.

[0056] Specifically, when the exhaust fan 21 needs to rotate, the motor 251 is started. The output end of the motor 251 drives the rotating shaft 252 to rotate, and the rotating shaft 252 drives the exhaust fan 21 to rotate.

[0057] By setting up the power component 25, the rotation of the motor 251 can drive the exhaust fan 21 to rotate, so that when the outside wind force is small, the motor 251 can ensure the speed of the exhaust fan 21, thereby ensuring the passage effect.

[0058] like Figure 5 As shown, the power component 25 also includes a connecting sleeve 254 fixedly connected to the output end of the motor 251. The top of the connecting sleeve 254 is evenly provided with four slots 255 along the circumferential direction. The edges of the slots 255 are chamfered. Two fixing rods 256 are symmetrically fixedly connected to the rotating shaft 252. The fixing rods 256 can enter the slots 255.

[0059] Specifically, during use, the fixed rod 256 is located in the slot 255. The output end of the motor 251 drives the connecting sleeve 254 to rotate, the connecting sleeve 254 drives the fixed rod 256 to rotate, and the fixed rod 256 drives the connecting sleeve 254 to rotate. When the external wind force is strong, the sliding frame 241 moves downward. The sliding frame 241 drives the motor 251 to move downward, and the motor 251 drives the connecting sleeve 254 to move downward, so that the motor 251 is disconnected from the rotating shaft 252.

[0060] By setting the connecting sleeve 254, the output end of the motor 251 can be connected to the rotating shaft 252, so that the motor 251 can drive the rotating shaft 252 to rotate. Furthermore, by setting the connecting sleeve 254, when the wind force is small, the sliding frame 241 can move to disconnect the connecting sleeve 254 from the rotating shaft 252, thus avoiding the resistance of the motor 251 when the wind force drives the exhaust fan 21 to rotate, which would affect the efficiency of wind power utilization.

[0061] like Figure 3 , 4 As shown, the ventilation mechanism 2 also includes two lifting components 26 symmetrically arranged on the sliding frame 241. Each lifting component 26 includes a fixed motor 261 fixedly connected to the sliding frame 241. The output end of the fixed motor 261 is fixedly connected to a winding wheel 262. A pull rope 263 is wound on the winding wheel 262. One end of the pull rope 263 is fixedly connected to the winding wheel 262, and the other end of the pull rope 263 is fixedly connected to the air intake section 12.

[0062] Specifically, when the sliding frame 241 needs to move downward, the fixed motor 261 is started. The fixed motor 261 drives the winding wheel 262 to rotate, and the winding wheel 262 loosens the pull rope 263, causing the sliding frame 241 to move downward under its own weight. When the sliding frame 241 needs to move upward, the fixed motor 261 is started. The fixed motor 261 drives the winding wheel 262 to rotate, and the winding wheel 262 winds and tightens the pull rope 263, causing the sliding frame 241 to move upward.

[0063] The lifting component 26 allows the pull rope 263 to be tightened or loosened by the rotation of the fixed motor 261, thereby causing the sliding frame 241 to move up and down. This facilitates the connection and disconnection of the motor 251 and the rotating shaft 252. The pull rope 263 also allows the sliding frame 241 to be moved to the ground, making it convenient for staff to replace the filter plate 242 or maintain the motor 251. Furthermore, in the event of a harmful gas leak, the sliding frame 241 can be moved to the underside of the fixed section 13, allowing indoor gas to directly enter the fixed section 13 through the gap between the sliding frame 241 and the fixed section 13, increasing the gas flow rate and accelerating the collection of harmful gases.

[0064] like Figure 7 , 8 As shown, a connector 27 is provided between the rain cover 3 and the discharge section 11. The connector 27 includes two sliding grooves 271 symmetrically opened in the discharge section 11. A sliding rod 272 is slidably connected in the sliding groove 271. The top end of the sliding rod 272 is fixedly connected to the rain cover 3.

[0065] Specifically, during use, when the lifting shaft 221 rotates, the sliding rod 272 prevents the rain cover 3 from rotating; when the lifting shaft 221 moves up and down, the rain cover 3 drives the sliding rod 272 to slide up and down in the slide groove 271.

[0066] like Figure 3 As shown, a tapered guide cylinder 14 is fixedly connected to the lower end of the fixed section 13.

[0067] The guide tube 14 facilitates the sliding frame 241 to enter the fixed section 13.

[0068] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0069] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0070] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0071] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A green building energy-saving and emission-reduction ventilation structure based on smart cities, characterized in that, The device includes a housing, which includes a cylindrical discharge section. The bottom end of the discharge section is connected to the interior, and the top end of the discharge section is connected to the outside. A ventilation mechanism, including an exhaust fan, is provided in the discharge section. A rain cover is provided on the upper side of the discharge section. The rain cover is movable up and down and can close the top end of the discharge section. A collection mechanism is provided on the side of the discharge section. The collection mechanism includes a connecting pipe connected to the side of the discharge section. A collection bag is provided on the section of the connecting pipe away from the discharge section. An opening and closing element is provided between the discharge section and the connecting pipe.

2. The energy-saving and emission-reduction ventilation structure for green buildings based on smart cities according to claim 1, characterized in that, The opening and closing component includes a lifting shaft, the rain cover is rotatably sleeved on the lifting shaft, a mounting bracket is rotatably sleeved on the lifting shaft, an opening and closing cylinder is fixedly connected to the mounting bracket, the opening and closing cylinder is slidably connected to the inner wall of the discharge section, and the height of the opening and closing cylinder is greater than the diameter of the connecting pipe.

3. The energy-saving and emission-reduction ventilation structure for green buildings based on smart cities according to claim 2, characterized in that, The bottom end of the lifting shaft is fixedly connected to the exhaust fan, the top end of the lifting shaft extends upward, the top end of the lifting shaft passes through the rain cover, and an impeller is fixedly sleeved on the top end of the lifting shaft.

4. The energy-saving and emission-reduction ventilation structure for green buildings based on smart cities according to claim 3, characterized in that, The housing also includes a conical air intake section connected to the lower end of the exhaust section. The bottom end of the air intake section is connected to a cylindrical fixed section. The ventilation mechanism also includes a filter element disposed in the fixed section. The filter element includes a sliding frame slidably disposed in the fixed section. Two semi-circular mounting slots are symmetrically opened in the sliding frame. A filter plate is detachably connected to each mounting slot.

5. A green building energy-saving and emission-reduction ventilation structure based on smart cities according to claim 4, characterized in that, The sliding frame is equipped with a power component, which includes a motor fixedly connected to the sliding frame. The output end of the motor is connected to a rotating shaft. The exhaust fan is fixedly sleeved on the top end of the rotating shaft. A fixed frame is rotatably sleeved on the rotating shaft. The fixed frame is fixedly connected to the inner wall of the discharge section.

6. The energy-saving and emission-reduction ventilation structure for green buildings based on smart cities according to claim 5, characterized in that, The power component also includes a connecting sleeve fixedly connected to the output end of the motor. The top of the connecting sleeve has four slots evenly opened along the circumferential direction. The edges of the slots are chamfered. Two fixing rods are symmetrically fixedly connected to the rotating shaft. The fixing rods can enter the slots.

7. A green building energy-saving and emission-reduction ventilation structure based on smart cities according to claim 6, characterized in that, The ventilation mechanism also includes two lifting components symmetrically arranged on the sliding frame. Each lifting component includes a fixed motor fixedly connected to the sliding frame. The output end of the fixed motor is fixedly connected to a winding wheel. A pull rope is wound on the winding wheel. One end of the pull rope is fixedly connected to the winding wheel, and the other end of the pull rope is fixedly connected to the air intake section.

8. A green building energy-saving and emission-reduction ventilation structure based on smart cities according to claim 7, characterized in that, A connector is provided between the rain cover and the discharge section. The connector includes two symmetrically formed grooves in the discharge section. A sliding rod is slidably connected in the grooves, and the top end of the sliding rod is fixedly connected to the rain cover.

9. A green building energy-saving and emission-reduction ventilation structure based on smart cities according to claim 8, characterized in that, A tapered guide cylinder is fixedly connected to the lower end of the fixed section.

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