Low-carbon energy-saving building green roof

Abstract

The invention discloses a low-carbon and energy-saving building green roof, which belongs to the technical field of buildings, and comprises a roof plate, a water storage tank, a heat exchanger, a heat exchanger, a heat exchanger and a heat exchanger, the water storage tank is arranged on the roof plate and is used for adjusting the temperature of the roof plate; the heat collection plate is fixedly arranged on the top surface of the water storage tank and used for adjusting the temperature of the water storage tank; the drainage pipes are symmetrically arranged on the house plate in a sliding mode and used for covering the heat collection plate so as to adjust illumination of the heat collection plate, and the circulation units are arranged on the house plate and used for enabling liquid in the drainage pipes and the water storage tank to circularly flow; and the driving assembly is arranged on the house plate, is used for driving the two solar panels to get away from and get close to each other and comprises a toothed belt rotationally arranged on the house plate, the solar panels are fixedly arranged on the upper side and the lower side of the toothed belt correspondingly, the indoor temperature is effectively adjusted, energy emission is further reduced, and meanwhile energy use is reduced.

Description

Technical Field

[0001] The invention belongs to the field of building technology, and in particular relates to a low-carbon and energy-saving building green roof. Background Art

[0002] With the rapid development of social economy, people attach more and more importance to low carbon and energy conservation. Green, low-carbon and energy-saving buildings have begun to be effectively promoted and widely used. House buildings are divided into many types, including prefabricated and concrete ones, and the roof is a necessary top structure in all buildings. The traditional roof is directly covered, but because the height of buildings is getting higher and higher, and the roof is directly covered on the top without improvement, the temperature of the residents living on the top floor is higher in summer and lower in winter. In order to improve the temperature in the house, residents generally use air conditioners or other electrical appliances to adjust the indoor temperature. The excessive use of electrical appliances not only increases carbon emissions, but also increases the use of electricity, resulting in energy waste and air pollution. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a low-carbon and energy-saving building green roof, which solves the problem that the indoor temperature is too high or too low, the roof cannot regulate the indoor temperature, resulting in excessive use of electricity and high carbon emissions.

[0004] The present invention is achieved by: a low-carbon and energy-saving building green roof, comprising a roof panel, and further comprising:

[0005] A water storage tank installed on the roof for adjusting the temperature of the roof;

[0006] A heat collecting plate fixedly arranged on the top surface of the water tank and used to adjust the temperature of the water tank;

[0007] Symmetrical sliding is set on the roof board to cover the heat collecting panel, so as to adjust the light of the heat collecting panel, as well as two solar panels that convert sunlight into electrical energy, and batteries for storing energy from the solar panels;

[0008] A drainage pipe is obliquely arranged in the roof board and is used for flowing and transferring heat to the liquid in the water tank, and the drainage pipe is arranged in a serpentine shape;

[0009] A circulation unit, arranged on the roof, for circulating the liquid in the drainage pipe and the water storage tank;

[0010] The driving assembly is arranged on the roof board and is used to drive the two solar panels to move away from and towards each other, including rotating a toothed belt arranged on the roof board, and the solar panels are respectively fixed on the upper and lower sides of the toothed belt.

[0011] As a preferred embodiment of the present invention, the circulation unit includes a power component and a circulation component, the power component includes a circulation box installed on the lower side of the water tank and connected to the water tank, a first transmission shaft is rotatably arranged in the circulation box, a turbine blade is installed at one end of the first transmission shaft, and the turbine blade is located at the drain outlet of the water tank into the circulation box, the other end of the first transmission shaft is transmission-connected to a first gear box, and a half gear is arranged at the output end of the first gear box.

[0012] As a preferred embodiment of the present invention, the circulation component includes a circulation pipe fixedly arranged on the roof, one end of the drainage pipe is through-connected with the circulation pipe, and the other end is through-connected with the circulation box; one end of the circulation pipe is through-connected with the water tank, and a second solenoid valve is provided at the connection between the circulation pipe, the water tank and the drainage pipe, a first solenoid valve is slidably arranged in the second solenoid valve, and a lifting component for moving the first solenoid valve is also provided in the circulation pipe.

[0013] As a preferred embodiment of the present invention, the lifting assembly includes a rotating sleeve rotatably arranged in a circulation pipe, a screw rod is threadedly connected to the rotating sleeve, the first solenoid valve is located at the end of the screw rod, a full gear is installed on the rotating sleeve, the full gear and the half gear are movably engaged, a torsion spring is provided on the rotating sleeve for its reset, and a limit frame is provided on the screw rod for its guidance.

[0014] As a preferred embodiment of the present invention, a cooling component is arranged on the solar panel, and when two solar panels are close to each other, it is used to cool the liquid in the circulation box during circulation, including a fan installed on the circulation box, the fan is located on one side of the turbine blade, a second transmission shaft is rotatably arranged on one of the solar panels, a conical tooth is installed at the end of the second transmission shaft, another conical tooth is arranged on the driving shaft of the fan, the two conical teeth are movably engaged, a second gear box is installed on the solar panel, the end of the second transmission shaft is fixedly connected to the input end of the second gear box, and a fan blade driven by it is arranged at the input end of the second gear box.

[0015] As a preferred embodiment of the present invention, an air duct is provided through the circulation box, a filter is provided at the end of the air duct, and the filter is located at the bottom of the roof board, for conveying the gas discharged into the circulation box by the fan into the house.

[0016] As a preferred embodiment of the present invention, the driving assembly includes a connecting frame fixedly mounted on the solar panel, the solar panel is fixedly mounted on a toothed belt via the connecting frame, the toothed belt is driven by a driving source, and the driving source is electrically connected to a battery.

[0017] As a preferred embodiment of the present invention, a brush plate is provided between the solar panel and the heat collecting plate for cleaning the heat collecting plate.

[0018] As a preferred embodiment of the present invention, a thermostat is arranged at the bottom of the roof board, and the thermostat is located inside the house, and the gap inside the roof board is filled with sound insulation cotton.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention can effectively convert the heat of sunlight into electrical energy through the solar panels in the equipment, so that it can work without using additional electrical energy, thereby further reducing the loss and use of electrical energy. During the operation of the equipment, the movement of the solar panels is controlled according to the indoor temperature, so that the solar panels can be used not only as energy collecting components, but also as a shielding component to shield the heat collecting components. Therefore, the temperature of the roof can be adjusted according to the temperature when the equipment is in use, thereby achieving the work of adjusting the indoor temperature, further reducing the use of air conditioning, saving electricity, and achieving the effect of emission reduction, making the equipment more practical and more effective when working. The equipment recycles water resources, so that the equipment will not cause waste of water resources when working, and the temperature adjustment effect can be achieved, so that carbon emissions can be reduced as much as possible when the equipment is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention from a front side perspective;

[0022] Figure 2 It is a schematic diagram of the structure from the bottom side perspective of the present invention;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention from the front side perspective Figure 1 ;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention from the front side perspective Figure 2 ;

[0025] Figure 5 It is a schematic diagram of the internal structure of the present invention from a partial lower side perspective;

[0026] Figure 6 It is a schematic diagram of a partial front side sectional structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the present invention opened from an upper side perspective.

[0028] In the figure:

[0029] 1. Roof board; 2. Water storage tank; 3. Collector; 4. Solar panel; 5. Drainage pipe; 6. Circulation box; 7. First transmission shaft; 8. Turbine blades; 9. First gear box; 10. Half gear; 11. Circulation pipe; 12. Rotating sleeve; 13. Screw rod; 14. Full gear; 15. Torsion spring; 16. First solenoid valve; 17. Second solenoid valve; 18. Battery; 19. Fan; 20. Second transmission shaft; 21. Conical teeth; 22. Second gear box; 23. Fan blades; 24. Air duct; 25. Filter; 26. Toothed belt; 27. Connecting frame; 28. Driving source. DETAILED DESCRIPTION

[0030] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0031] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0032] like Figures 1 to 7 As shown, a low-carbon and energy-saving building green roof provided by an embodiment of the present invention includes a roof panel 1, and also includes:

[0033] A water storage tank 2 is provided on the roof 1 and is used to adjust the temperature of the roof 1;

[0034] A heat collecting plate 3 fixedly arranged on the top surface of the water storage tank 2 and used for adjusting the temperature of the water storage tank 2;

[0035] Symmetrically slidably arranged on the roof 1, used to cover the heat collecting panel 3, so as to adjust the light of the heat collecting panel 3, as well as two solar panels 4 for converting sunlight into electrical energy, and batteries 18 for storing energy of the solar panels 4;

[0036] A drainage pipe 5 is obliquely arranged in the roof 1 and is used for flowing and transferring heat to the liquid in the water storage tank 2, and the drainage pipe 5 is arranged in a serpentine shape;

[0037] A circulation unit, arranged on the roof 1, is used to circulate the liquid in the drainage pipe 5 and the water storage tank 2;

[0038] A driving assembly, arranged on the roof panel 1, for driving the two solar panels 4 to move away from and towards each other, comprises a toothed belt 26 arranged on the roof panel 1, and the solar panels 4 are respectively fixed on the upper and lower sides of the toothed belt 26;

[0039] When working, the device has two working states: one is to cool the roof panel 1 and reduce the temperature in the room (refer to Figure 1 ), and the other is to heat the roof panel 2 to increase the temperature inside the house (reference Figure 7 ), are all for reducing the use of air conditioning and realizing energy conservation and emission reduction when the roof panel 1 is used. The specific work is as follows;

[0040] When the indoor temperature is high, refer to Figure 1 , the two solar panels 4 are close to each other, and at the same time, the heat collecting plate 3 on the water storage tank 2 is shielded to prevent the heat collecting plate 3 from collecting heat, thereby preventing the water temperature in the water storage tank 2 from rising. Figure 4 At this time, the water in the water storage tank 2 enters the circulation unit, and the circulation unit introduces the water into the serpentine drainage pipe 5. Since the water in the drainage pipe 5 is low-temperature water, the water will fully cool the roof 1. At the same time, the water passes through the circulation unit and enters the water storage tank 2 again. At the same time, the water forms a cycle during the flow, which can keep the temperature of the roof 1 and the water low.

[0041] When the indoor temperature is low, Figure 7 , the two solar panels 4 are driven away from each other by the driving assembly. When the solar panels 4 are away from each other, the heat collecting plate 3 is exposed. At this time, the heat collecting plate 3 collects heat through sunlight and heats the liquid in the water storage tank 2, so that the liquid in the water storage tank 2 rises steadily. When the liquid rises steadily, the temperature of the liquid will act on the roof 1 when it passes through the circulation unit and the drainage pipe 5, thereby achieving the effect of heating the inside of the roof 1;

[0042] During use, the solar panel 4 can effectively convert the heat from sunlight into electrical energy to provide power for the drive components, further reducing the use of energy;

[0043] The present invention can effectively convert the heat of sunlight into electrical energy through the solar panel 4 in the device, so that it can work without using additional electrical energy, thereby further reducing the loss and use of electrical energy. During the operation of the device, the movement of the solar panel 4 is controlled according to the indoor temperature, so that the solar panel 4 can not only be used as an energy collecting component, but also as a shielding component to shield the heat collecting component, so that the device can adjust the temperature of the roof panel 1 according to the temperature when in use, thereby realizing the work of adjusting the indoor temperature, further reducing the use of air conditioning, saving electricity, and achieving the effect of emission reduction, making the device more practical when working and having better effects. The device recycles water resources, so that the device will not cause waste of water resources when working, and the effect of adjusting the temperature can be achieved, so that the carbon emissions of the device can be reduced as much as possible when working.

[0044] As a preferred embodiment of the present invention, the circulation unit includes a power component and a circulation component, the power component includes a circulation box 6 installed on the lower side of the water storage tank 2 and connected to the water storage tank 2, a first transmission shaft 7 is rotatably arranged in the circulation box 6, a turbine blade 8 is installed at one end of the first transmission shaft 7, and the turbine blade 8 is located at the drainage port of the water storage tank 2 to drain water into the circulation box 6, the other end of the first transmission shaft 7 is transmission-connected to a first gear box 9, and a half gear 10 is arranged at the output end of the first gear box 9;

[0045] refer to Figure 4 When the liquid in the water tank 2 flows downward, the liquid impacts the turbine blade 8. At this time, the turbine blade 8 is impacted and rotates, and the impact force of the liquid is used as power to drive the turbine blade 8 to rotate, which can effectively reduce the use of electrical energy and reduce carbon emissions. When the turbine blade 8 drives the first transmission rod to rotate, the first transmission shaft 7 drives the first gear box 9 to rotate forward, and the first gear box 9 drives the half gear 10 to rotate. At this time, the half gear 10 can be used as a driving member to drive the full gear 14 in the lifting assembly to rotate, thereby further improving the efficiency of the equipment at work and reducing the use of electrical energy.

[0046] As a preferred embodiment of the present invention, the circulation component includes a circulation pipe 11 fixedly arranged on the roof 1, one end of the drainage pipe 5 is connected to the circulation pipe 11, and the other end is connected to the circulation box 6; one end of the circulation pipe 11 is connected to the water storage tank 2, and a second solenoid valve 17 is provided at the connection between the circulation pipe 11, the water storage tank 2 and the drainage pipe 5, a first solenoid valve 16 is slidably arranged in the second solenoid valve 17, and a lifting component for moving the first solenoid valve 16 is also provided in the circulation pipe 11;

[0047] refer to Figure 4 , 5 After the liquid enters the circulation box 6, the circulation box 6 transports the liquid to the drainage pipe 5. At this time, the drainage pipe 5 can be used as a refrigerant or a heating element (depending on the temperature state of the liquid). At the same time, the liquid flows into Figure 5 When the liquid enters the circulation pipe 11, refer to Figure 6The process of liquid entering the circulation pipe 11 is to first open the two second solenoid valves 17 to allow the liquid to enter the bottom of the circulation pipe 11, and as the liquid in the circulation pipe 11 gradually rises, open the first solenoid valve 16 and make it descend at the same time. When the first solenoid valve 16 descends to a certain position, the liquid is located on the upper side of the first solenoid valve 16, and then close the first solenoid valve 16, and then drive the first solenoid valve 16 to rise. The first solenoid valve 16 can push the liquid on its upper side upward so that it is discharged from the second solenoid valve 17 on the upper side (the second solenoid valve 17 on the upper side is connected to the water storage tank 2, and the second solenoid valve 17 on the lower side is connected to the drainage pipe 5), and the liquid can be circulated to the water storage tank 2, so as to perform circulation work, realize the circulation of liquid, and replace electric energy for heating and cooling.

[0048] As a preferred embodiment of the present invention, the lifting assembly includes a rotating sleeve 12 rotatably arranged in the circulation pipe 11, the rotating sleeve 12 is internally threaded with a screw rod 13, the first solenoid valve 16 is located at the end of the screw rod 13, a full gear 14 is installed on the rotating sleeve 12, the full gear 14 and the half gear 10 are movably engaged, a torsion spring 15 for resetting the rotating sleeve 12 is sleeved, and a limit frame for guiding the screw rod 13 is provided;

[0049] refer to Figure 6 When the half gear 10 drives the full gear 14 to rotate forward, the rotating sleeve 12 rotates at the same time. When the rotating sleeve 12 rotates, the screw rod 13 moves upward under the limit of the limit frame, and the screw rod 13 drives the first solenoid valve 16 to rise, so that the liquid in the circulation pipe 11 can be transported to the water storage tank 2. When the rotating sleeve 12 rotates, the torsion spring 15 is compressed at the same time. When the half gear 10 and the full gear 14 are disengaged, the torsion spring 15 drives the rotating sleeve 12 to rotate in the opposite direction, so that the first solenoid valve 16 can be lowered. When the half gear 10 is meshed with the full gear 14 again, the above steps will be repeated, so that the equipment can effectively convert mechanical energy into kinetic energy during operation, so that the equipment can still achieve circulation without using electrical energy, thereby further realizing energy saving and emission reduction of the equipment.

[0050] As a preferred embodiment of the present invention, a cooling component is arranged on the solar panel 4, and when two solar panels 4 are close to each other, it is used to cool the liquid in the circulation box 6 during circulation, including a fan 19 installed on the circulation box 6, and the fan 19 is located on one side of the turbine blade 8. A second transmission shaft 20 is rotatably arranged on one of the solar panels 4, and a conical tooth 21 is installed at the end of the second transmission shaft 20. Another conical tooth 21 is arranged on the driving shaft of the fan 19, and the two conical teeth 21 are movably engaged. A second gear box 22 is installed on the solar panel 4, and the end of the second transmission shaft 20 is fixedly connected to the input end of the second gear box 22, and a fan blade 23 for driving the second gear box 22 is arranged at the input end of the second gear box 22;

[0051] refer to Figure 4 When the two solar panels 4 are close to each other, it means that there is no need to heat the liquid in the water tank 2. At this time, the two conical teeth 21 are meshed with each other, and the fan blades 23 are located outside the roof 1. The fan blades 23 are driven to rotate by the external wind force, and the fan blades 23 transmit power to the second transmission shaft 20 through the second gear box 22, so that the second transmission shaft 20 drives the driving shaft of the fan 19 to rotate. At this time, the driving shaft drives the fan 19 to generate airflow, and the airflow acts on the falling liquid, so as to achieve the cooling of the liquid, so that when it circulates, the temperature is lower, and the cooling efficiency of the equipment is further improved;

[0052] refer to Figure 7 , is a state where the two solar panels 4 are away from each other. At this time, the liquid needs to be heated, and at this time, the two conical teeth 21 are away from each other, thereby stopping the fan 19 from working and preventing the fan 19 from generating airflow to cool the liquid.

[0053] As a preferred embodiment of the present invention, a duct 24 is provided through the circulation box 6, a filter 25 is provided at the end of the duct 24, and the filter 25 is located at the bottom of the roof board 1, and is used to transport the gas discharged from the fan 19 into the circulation box 6 to the room;

[0054] refer to Figure 4 The gas generated by the fan 19 enters the circulation box 6, which can cool the liquid in the circulation box 6 and discharge the gas through the air duct 24. At the same time, the gas is filtered through the filter 25 and enters the room, thereby effectively accelerating the air flow in the room and reducing the temperature in the room.

[0055] As a preferred embodiment of the present invention, the driving assembly includes a connecting frame 27 fixedly mounted on the solar panel 4, the solar panel 4 is fixedly mounted on the toothed belt 26 through the connecting frame 27, the toothed belt 26 is driven by a driving source 28, and the driving source 28 is electrically connected to the battery 18;

[0056] refer to Figure 1 When the two solar panels 4 are away from each other, the battery 18 is used to power the driving source 28, and the driving source 28 drives the toothed belt 26 to rotate. When the toothed belt 26 rotates, the toothed belt 26 pulls the two connecting frames 27 to move. When the two connecting frames 27 are close to each other, the solar panels 4 are closed. When the two connecting frames 27 are away from each other, the solar panels 4 are away from each other, thereby realizing the adjustment of different liquid temperatures and achieving energy saving and emission reduction efficiency.

[0057] As a preferred embodiment of the present invention, a brush plate is provided between the solar panel 4 and the heat collecting panel 3 for cleaning the heat collecting panel 3;

[0058] refer to Figure 7Every time the solar panel 4 moves, the heat collecting plate 3 can be cleaned to avoid the situation where impurities are contained on the surface of the heat collecting plate 3, which affects its heat collection efficiency.

[0059] As a preferred embodiment of the present invention, a thermostat is provided at the bottom of the roof board 1, and the thermostat is located inside the house, and the gap inside the roof board 1 is filled with sound insulation cotton;

[0060] When working, the thermostat can control the opening and closing of the solar panel 4, making it more intelligent when used, and the sound insulation cotton can effectively prevent the noise generated when the liquid flows, thereby affecting the room.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-carbon and energy-saving building green roof, comprising a roof panel (1), characterized in that: Also includes: A water storage tank (2) disposed on the roof panel (1) and used to adjust the temperature of the roof panel (1); A heat collecting plate (3) fixedly arranged on the top surface of the water storage tank (2) and used to adjust the temperature of the water storage tank (2); Symmetrically slidably arranged on the roof panel (1), and used to cover the heat collecting panel (3), thereby adjusting the light of the heat collecting panel (3) and the two solar panels (4) that convert sunlight into electrical energy; A storage battery (18) disposed on the roof panel (1) and used for storing energy from the solar panel (4); A drainage pipe (5) is obliquely arranged in the roof panel (1) and is used for flowing and transferring heat to the liquid in the water storage tank (2), and the drainage pipe (5) is arranged in a serpentine shape; A circulation unit, arranged on the roof plate (1), and used for circulating the liquid in the drainage pipe (5) and the water storage tank (2); A driving assembly is arranged on the roof panel (1) and is used to drive two solar panels (4) to move away from and towards each other, comprising a toothed belt (26) that is rotated on the roof panel (1), wherein the solar panels (4) are respectively fixedly arranged on the upper and lower sides of the toothed belt (26).

2. A low-carbon and energy-saving building green roof as claimed in claim 1, characterized in that: The circulation unit comprises a power assembly and a circulation assembly; the power assembly comprises a circulation box (6) mounted on the lower side of a water storage tank (2) and connected to the water storage tank (2); a first transmission shaft (7) is rotatably arranged in the circulation box (6); a turbine blade (8) is mounted on one end of the first transmission shaft (7); and the turbine blade (8) is located at a drainage port for draining water from the water storage tank (2) into the circulation box (6); the other end of the first transmission shaft (7) is transmission-connected to a first gear box (9); and a half gear (10) is arranged at the output end of the first gear box (9).

3. A low-carbon and energy-saving building green roof as claimed in claim 2, characterized in that: The circulation component comprises a circulation pipe (11) fixedly arranged on the roof (1); one end of the drainage pipe (5) is connected to the circulation pipe (11) through-connection, and the other end is connected to the circulation box (6); one end of the circulation pipe (11) is connected to the water storage tank (2); a second solenoid valve (17) is provided at the connection between the circulation pipe (11), the water storage tank (2) and the drainage pipe (5); a first solenoid valve (16) is slidably arranged inside the second solenoid valve (17); and a lifting component for moving the first solenoid valve (16) is also provided inside the circulation pipe (11).

4. A low-carbon and energy-saving building green roof as claimed in claim 3, characterized in that: The lifting assembly comprises a rotating sleeve (12) rotatably arranged in a circulation pipe (11), the rotating sleeve (12) being internally threadedly connected to a screw rod (13), the first solenoid valve (16) being located at the end of the screw rod (13), a full gear (14) being mounted on the rotating sleeve (12), the full gear (14) and the half gear (10) being movably engaged, a torsion spring (15) being sleeved on the rotating sleeve (12) for resetting the rotating sleeve (12), and a limit frame being provided on the screw rod (13) for guiding the screw rod (13).

5. A low-carbon and energy-saving building green roof as claimed in claim 4, characterized in that: A cooling component is arranged on a solar panel (4) and is used to cool the liquid in a circulation box (6) when two solar panels (4) are close to each other. The cooling component comprises a fan (19) mounted on the circulation box (6), wherein the fan (19) is located on one side of a turbine blade (8). A second transmission shaft (20) is rotatably arranged on one of the solar panels (4), a conical tooth (21) is mounted on the end of the second transmission shaft (20), another conical tooth (21) is mounted on the drive shaft of the fan (19), and the two conical teeth (21) are movably meshed. A second gear box (22) is mounted on the solar panel (4), an end of the second transmission shaft (20) is fixedly connected to an input end of the second gear box (22), and a fan blade (23) is mounted on the input end of the second gear box (22) for driving the fan (23).

6. A low-carbon and energy-saving building green roof as claimed in claim 5, characterized in that: An air duct (24) is provided through the circulation box (6), a filter (25) is provided at the end of the air duct (24), and the filter (25) is located at the bottom of the roof board (1) and is used to transport the gas discharged into the circulation box (6) by the fan (19) to the inside of the house.

7. A low-carbon and energy-saving building green roof as claimed in claim 6, characterized in that: The drive assembly comprises a connecting frame (27) fixedly mounted on a solar panel (4); the solar panel (4) is fixedly mounted on a toothed belt (26) via the connecting frame (27); the toothed belt (26) is driven by a driving source (28); and the driving source (28) is electrically connected to a storage battery (18).

8. A low-carbon and energy-saving building green roof as claimed in claim 7, characterized in that: A brush plate is provided between the solar panel (4) and the heat collecting plate (3) for cleaning the heat collecting plate (3).

9. A low-carbon and energy-saving building green roof as claimed in claim 8, characterized in that: A thermostat is arranged at the bottom of the roof board (1), and the thermostat is located inside the house. The gap inside the roof board (1) is filled with sound insulation cotton.

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