Combined photovoltaic-green roof device for urban construction

Abstract

The invention discloses a combined photovoltaic-green roof device for urban construction, which comprises a bottom plate, a planting box is fixedly connected to the top surface of the bottom plate, the planting box is filled with a growth substrate layer, a filter layer and a drainage layer, a humidity sensor is arranged in soil, a water storage tank is arranged on one side of the planting box, and a filter box is arranged on one side of the water storage tank. The filter tank is communicated with the irrigation pipe and the water storage tank, the other end of the water storage tank is connected with the drainage pipe network, rainwater exceeding the water storage capacity of the water storage tank can be drained away from the drainage pipe network, the device is provided with a protection mechanism with a photovoltaic system, and solar energy can be effectively utilized while extremely severe weather is dealt with. The method pays attention to improvement of the urban green land area and the urban toughness, has the functions of rainfall flood management, heat island effect control, energy conservation and the like, and exerts the ecological and environmental values of the two to the greatest extent through a photovoltaic-biological coupling system. Urban rainfall flood disasters can be reduced, harmonious symbiosis of people and nature is promoted, and sustainable development is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of green roofs, and in particular to a combined photovoltaic-green roof device for urban construction. Background Art

[0002] The rapid advancement of urbanization has increased the impervious area of ​​cities. Urban roofs account for more than 30% of the impervious area of ​​cities. Their huge area is an important resource. If they are not effectively utilized, they will not only cause huge waste, but also aggravate the urban sewer overflow pollution problem, and then cause a series of urban problems. Planting plants on the roof and building green roofs is the main application form of urban roof construction at present. It can effectively make up for the shortcomings of high intensity of urban ground development, small green space and limited ground space. Studies have shown that green roofs can improve urban thermal environment, regulate rainwater runoff, enhance urban landscape, extend roof life, reduce noise pollution, improve air quality, and do not occupy additional land, so they have broad application prospects.

[0003] Existing green roofs usually carry out greening directly on the roof, and the cost of irrigation and maintenance is relatively high, and they are mainly oriented towards the ecological function of green roofs. However, existing green roofs usually do not have protective measures. On the one hand, the lack of protective measures can easily destroy the planted plants in extremely bad weather. On the other hand, when the soil is dry in autumn and winter, the lack of protective measures can easily cause the soil on the surface of the green roof to be eroded and blown away by wind, causing the risk of falling objects from high altitudes. In recent years, the country has vigorously promoted photovoltaic technology, and photovoltaic-ecological coupling technology has been implemented in many places. Combining photovoltaic technology with protective measures for green roofs, a set of devices is built on the roof. In summer, photovoltaic panels directly provide shading functions, reduce the surface temperature of buildings and the cooling energy consumption of buildings, and provide energy needs while better meeting the growth of vegetation. It has the potential for promotion.

[0004] In this context, there is an urgent need for a combined photovoltaic-green roof device for urban construction to solve the problems existing in the above-mentioned prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a combined photovoltaic-green roof device for urban construction to solve the problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following scheme: The present invention provides a combined photovoltaic-green roof device for urban construction, including a photovoltaic device and a base plate, a planting box is fixedly connected to the top surface of the base plate, a plurality of partitions are fixedly connected in the planting box, and the plurality of partitions divide the interior of the planting box into a plurality of planting cavities, and the plurality of planting cavities are used to plant plants, and the planting cavity is filled with a growth matrix layer, a filter layer and a drainage layer, and a humidity sensor is arranged in the soil, and a bird-repelling structure is arranged in the planting cavity, and an irrigation pipe is fixedly installed on the inner wall of the planting box, a water storage tank is arranged on one side of the planting box, and a filter box is arranged on one side of the water storage tank, and the filter box is respectively connected with the irrigation pipe and the water storage tank, and a protective mechanism is arranged on the side of the planting box away from the water storage tank, and the protective mechanism can cover the entire planting box, and adjustable photovoltaic components are arranged on both sides of the protective mechanism. Fully utilizing solar energy can provide power support for the entire device, and the excess electricity can be used in the building or incorporated into the power grid. By flexibly switching the photovoltaic-protection mechanism, solar energy can be efficiently utilized on sunny days, and the green roof plants can be shielded and protected. Plant transpiration cooling can further improve the power generation efficiency of the photovoltaic system. Closing the photovoltaic-protection mechanism on rainy days can allow the green roof part to fully absorb rainwater, promote plant growth, and give play to the rainwater management function of the green roof. The photovoltaic system is coupled with the green roof device. The present invention can give full play to the advantages of the photovoltaic-ecological coupling system, provide new ideas for sustainable urban ecological construction, and provide certain economic benefits.

[0007] Preferably, the protective mechanism includes a support fixed to the base plate, a accommodating tube fixedly connected to the top of the support, a second motor fixedly connected to the accommodating tube, an output shaft of the second motor fixedly connected to one end of a reel, the other end of the reel is rotatably connected to the inner wall of the accommodating tube, a protective plate is wound around the reel, the protective plate can cover the entire planting box, an end of the protective plate extends out of the accommodating tube and is fixedly connected to a limiting plate, the limiting plate is in contact with the outer wall of the accommodating tube, arc plates are symmetrically fixedly connected on both sides of the accommodating tube, a driving assembly is installed in the arc plate, and the driving assembly is fixedly connected to the limiting plate.

[0008] Preferably, the driving assembly includes a slide rail fixed to the inner wall of the arc plate, a slider is slidably connected to the slide rail, a first motor is fixed in the slider, a gear is fixed to the output shaft of the first motor, a tooth groove is opened on the slide rail, the tooth groove is meshed with the gear, an extension rod is fixed to the side wall of the slider, the extension rod extends out of the arc plate and is slidably connected to the arc plate, and the extension rod is fixed to the limit plate.

[0009] Preferably, the photovoltaic assembly includes a support plate to which the arc-shaped plate is fixedly connected at one end away from the accommodating tube, a column is provided on one side of the support plate, the column is fixedly connected to the bottom plate, and a photovoltaic panel is rotatably connected between the column and the support plate.

[0010] Preferably, a third motor is fixedly connected in the column, an output shaft of the third motor is fixedly connected to a connecting shaft, an end of the connecting shaft away from the third motor is rotatably connected to the support plate, and the connecting shaft passes through the photovoltaic panel and is fixedly connected to the photovoltaic panel.

[0011] Preferably, the filter box is fixedly connected to and connected with a first connecting pipe, the first connecting pipe is connected to the irrigation pipe, the water storage tank is fixedly connected to and connected with a second connecting pipe, the second connecting pipe is fixedly connected to and connected with a water inlet pipe, one end of the water inlet pipe is connected to the filter box, and the other end of the water inlet pipe is connected to an external water source.

[0012] Preferably, a side of the water tank away from the second connecting pipe is fixedly connected to and communicated with a drain pipe.

[0013] Preferably, a protective net is detachably connected to the top of the water tank.

[0014] Preferably, the bird-repelling structure comprises a support rod fixedly connected to the bottom surface of the planting box, and a tray is fixedly connected to the top of the support rod.

[0015] Preferably, the protective plate comprises a plurality of long plates arranged at equal intervals, and two adjacent long plates are connected by a plurality of ropes.

[0016] The present invention discloses the following technical effects: when in use, a vegetation layer, a growth matrix layer, a filter layer and a drainage layer are arranged from top to bottom in the planting cavity. Different plants can be planted in different planting cavities, and plant species that are drought-resistant, cold-resistant, strong in stress resistance and have certain ornamental properties are scientifically configured to form a diversified ecological community and promote the improvement of biodiversity. A bird-repelling device is provided to drive away birds in autumn and winter to prevent birds from foraging and damaging green roof vegetation and soil. A humidity sensor is arranged in the soil to facilitate real-time monitoring of soil moisture. When the soil moisture is low, water in the water storage tank is preferentially enabled, and is passed into the irrigation pipe after being filtered by the filter box, and the plants are irrigated through the irrigation pipe. A photovoltaic device is installed on the surface of the protective mechanism. On the one hand, it is for the photovoltaic-green roof facility to function, meet the power required for the opening and closing of the protective mechanism, irrigation, soil moisture monitoring, etc., and on the other hand, the excess power can be used in the building or incorporated into the power grid. In addition, when encountering bad weather or when the plants die in autumn and winter, the entire planting box can be covered by the protective mechanism to reduce the damage to the plants. All components of the present invention adopt standardized design, which is convenient for transportation, installation and later maintenance. Users can freely combine them according to the roof area and needs to achieve personalized customization; focus on the protection and improvement of biodiversity, provide habitats for urban organisms, and promote harmonious coexistence between man and nature; have protective mechanisms, can cope with extremely severe weather, and reduce the damage caused by severe weather to the overall. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 A top view of the water storage tank of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the accommodating tube of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the protective plate of the present invention;

[0022] Figure 5 It is a schematic diagram of the internal structure of the curved plate of the present invention;

[0023] Figure 6 It is a schematic diagram of the internal structure of the slider of the present invention;

[0024] Figure 7 It is a schematic diagram of a pillar in a top view of the present invention;

[0025] In the figure: 1. bottom plate; 2. support; 3. containing tube; 4. column; 5. photovoltaic panel; 6. arc plate; 7. support plate; 8. planting box; 9. water storage tank; 10. protection net; 11. irrigation pipe; 12. partition; 13. bird-repelling structure; 14. water inlet pipe; 15. filter box; 16. first connecting pipe; 17. second connecting pipe; 18. drainage pipe; 19. slide rail; 20. slider; 21. extension rod; 22. first motor; 23. gear; 24. tooth groove; 25. second motor; 26. reel; 27. protection plate; 28. limit plate; 29. ​​long board; 30. rope; 31. third motor; 32. connecting shaft. DETAILED DESCRIPTION

[0026] With the acceleration of urbanization, cities are facing more and more environmental challenges, such as stormwater management, heat island effect, and air quality degradation. As an innovative urban design element, photovoltaic-green roof aims to improve the ecological resilience and sustainability of cities by combining photovoltaic technology and green roof construction technology.

[0027] Combined photovoltaic-green roof overview: Photovoltaic-green roof is an innovative ecological building solution concept that combines photovoltaic power generation technology with green roof system in recent years. It realizes the dual functions of energy production and ecological benefits by installing photovoltaic panels on green roofs. On the one hand, photovoltaic panels use solar energy to convert into clean electricity, reducing the energy consumption and carbon emissions of buildings; on the other hand, green roofs regulate roof temperature, reduce rainwater runoff, improve air quality, and bring ecological landscape and biodiversity to the city through vegetation coverage. At the same time, the cooling effect of green roofs can improve the power generation efficiency of photovoltaic panels, and the shading effect of photovoltaic panels can also help reduce the evaporation of water from roof plants, forming a synergistic effect. With the advancement of the concept of sustainable development, photovoltaic-green roofs have great potential for application in urban buildings, which not only promotes the construction of low-carbon cities, but also provides an innovative model for modern buildings that integrates beauty, environmental protection and economic benefits.

[0028] Structure of the combined photovoltaic-green roof device: The combined photovoltaic-green roof device adopts a modular design, and each module integrates photovoltaic panels, green roofs and pumping and water storage modules. This design allows flexible combination according to the actual size and shape of the roof to form a complete system. The modular design not only improves construction efficiency and reduces installation costs, but also facilitates subsequent maintenance and replacement. When a module fails or needs maintenance, it can be disassembled and replaced separately without affecting the operation of the entire system.

[0029] Photovoltaic panels are the energy conversion core of the device, responsible for converting solar energy into electrical energy, and are installed on the top layer of the module to maximize sunlight reception. The materials and design of photovoltaic panels must take into account durability and efficiency to ensure long-term stable power output.

[0030] The green roof consists of a base plate and a planting trough. The base plate provides stable support and is usually made of lightweight, high-strength, weather-resistant and corrosion-resistant materials, such as lightweight concrete, metal plates, etc. These materials not only have good load-bearing performance, but also have good weather resistance and corrosion resistance, and can maintain the stability and durability of the structure for a long time. The planting trough is located above the base plate and is used to hold planting soil and plants. It is usually made of corrosion-resistant and wear-resistant materials, such as stainless steel and plastic. The design of the planting trough should take into account the root growth needs of the plants to ensure that the plants can grow normally and absorb rainwater. The planting trough is arranged from top to bottom with a planting layer, a growth matrix layer, a filter layer and a drainage layer. The planting layer is filled with planting soil for planting plants. The drainage layer is located below the planting layer and is used to remove excess rainwater to prevent water accumulation at the roots of plants and cause rot. It is usually made of permeable materials, such as ceramsite, HDPE drainage board, etc. These materials have good permeability and can quickly guide rainwater into the water storage tank to avoid water accumulation at the roots of plants. The water tank is located on one side of the planting trough to store rainwater, and the other end is connected to the drainage network for plants to absorb and use during dry periods. The design of the aquifer should take into account the balance between storage capacity and drainage efficiency to ensure that sufficient rainwater can be stored and excess rainwater can be discharged in time. The aquifer is located below the aquifer to prevent rainwater from penetrating into the roof structure and ensure the waterproof performance of the roof. It is usually made of waterproof materials such as polyethylene film, waterproof coating, etc.

[0031] The pumping and water storage module is responsible for collecting, storing and distributing rainwater. The water tank is used to collect and store rainwater as a source of water for plant irrigation. The water inlet pipe is connected to an external water source to ensure that when the water in the water tank is insufficient, the water source can be replenished in time to ensure the water supply of the plants. The filter box is connected to the irrigation pipe and the water tank, and is responsible for filtering the water in the water tank to ensure that the water quality is suitable for plant growth and prevent impurities from clogging the irrigation system. The first connecting pipe transports the filtered water from the filter box to the irrigation pipe for plant irrigation. This design ensures that the plants are supplied with the right amount of water in a timely manner. The second connecting pipe and the drain pipe work together to adjust the amount of water in the water tank. When there is too much water in the water tank, it can be drained through the drain pipe to prevent overflow and water loss.

[0032] The intelligent control system is the core part of the combined photovoltaic-green roof device, which can realize the intelligent management of the system. The intelligent control system is usually composed of sensors, controllers and actuators. The sensors are used to monitor real-time data such as soil moisture, temperature, rainfall, etc., and transmit the data to the controller. The controller calculates the water demand of the plants based on the data collected by the sensors and controls the actuators to perform corresponding operations. The actuators include irrigation systems, drainage systems, etc., which realize irrigation, drainage and other functions according to the instructions of the controller. The irrigation system usually adopts drip irrigation or micro-sprinkler irrigation, which can accurately irrigate according to the water demand of the plants. The drainage system automatically adjusts the drainage rate according to the amount of rainfall and the capacity of the aquifer to ensure the stable operation of the system.

[0033] Functional advantages of combined photovoltaic-green roof devices: Combined photovoltaic-green roof devices provide the necessary growth space for plants. Due to the presence of photovoltaic panels, the humidity under the roof increases, providing a more humid growth environment for plants. When the vegetation grows better, it is more ornamental and can play a better role in rain and flood control, air purification, noise reduction and other functions. The transpiration of vegetation and the shading effect of photovoltaic panels work together to significantly reduce the temperature of the building and the surrounding environment. This cooling effect not only improves the thermal comfort of the occupants, but also helps to improve the efficiency of photovoltaic power generation. Combined photovoltaic-green roofs can directly convert solar energy into electrical energy for the device itself and the building, achieving energy self-sufficiency. This model reduces dependence on external energy, avoids electricity waste, and maximizes electricity cost savings. The additional electricity generated by photovoltaic panels is connected to the grid, bringing economic benefits to the building owner. This model not only achieves energy self-sufficiency, but also generates additional income through electricity sales, increasing the economic value of green roofs. Combined photovoltaic-green roof devices reduce the surface temperature of buildings through vegetation coverage, reducing the energy consumption of buildings. Especially in hot summer, this cooling effect can significantly reduce the use of air conditioning, thereby reducing energy consumption. Vegetation-covered roofs provide a more pleasant living environment and improve the thermal comfort of residents. This green space also helps to improve air quality, reduce urban noise, and provide a healthier living environment for urban residents. The setting of photovoltaic panels can prevent birds from attacking plants, protect plants from damage, and extend the service life of the device. At the same time, photovoltaic panels can prevent strong winds in autumn and winter from blowing away the soil, maintaining the integrity and beauty of the roof. Combined photovoltaic-green roof devices not only provide energy solutions, but also beautify the urban environment and increase the city's green space. This device helps to improve urban ecology, increase urban biodiversity, and provide urban residents with more opportunities for contact with nature.

[0034] Application prospects of combined photovoltaic-green roof devices: Combined photovoltaic-green roof devices have broad application prospects. With the acceleration of urbanization and the increasingly severe urban environmental problems, the construction of green buildings and ecological cities has received more and more attention. As a new element of urban design, combined photovoltaic-green roof devices are in line with this development trend. The device has multiple functions such as rainwater management, environmental beautification, energy conservation and emission reduction, and ecological benefits. At the same time, it can provide clean energy for the city and contribute to the sustainable development of the city. It can be widely used on the roofs of various types of buildings such as residential, commercial and public buildings to form a continuous photovoltaic-green roof system to enhance the ecological resilience of the city. In addition, combined photovoltaic-green roof devices can be combined with urban infrastructure such as rain gardens, biological retention units, and permeable sidewalks to build a complete urban blue-green infrastructure system, optimize the utilization of urban rainwater resources and improve flood control capabilities.

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Reference Figure 1-Figure 7 As shown, the present embodiment provides a combined photovoltaic-green roof device for urban construction, including a photovoltaic device and a base plate 1. A planting box 8 is fixedly connected to the top surface of the base plate 1. A plurality of partitions 12 are fixedly connected in the planting box 8. The plurality of partitions 12 divide the interior of the planting box 8 into a plurality of planting cavities. The plurality of planting cavities are used to plant plants. The planting cavities are filled with a growth matrix layer, a filter layer and a drainage layer. A humidity sensor is arranged in the soil. A bird-repellent structure 13 is arranged in the planting cavity. An irrigation pipe 11 is fixedly installed on the inner wall of the planting box 8. A water storage tank 9 is arranged on one side of the planting box 8. A filter box 15 is arranged on one side of the water storage tank 9. The filter box 15 is connected to the irrigation pipe 11 and the water storage tank 9 respectively. A protective mechanism is arranged on the side of the planting box 8 away from the water storage tank 9. The protective mechanism can cover the entire planting box 8. Adjustable photovoltaic components are arranged on both sides of the protective mechanism, and intelligent switch control can be performed according to actual needs.

[0038] When in use, a vegetation layer, a growth matrix layer, a filter layer and a drainage layer are arranged from top to bottom in the planting cavity. Different plants can be planted in different planting cavities, and plant species that are drought-resistant, cold-resistant, highly resistant and have certain ornamental properties are scientifically configured to form a diverse ecological community and promote the improvement of biodiversity. A bird-repelling device 13 is provided to drive away birds in autumn and winter to prevent birds from foraging and damaging green roof vegetation and soil; a humidity sensor is provided in the soil to facilitate real-time monitoring of soil humidity. When the soil humidity is low, the water in the water storage tank 9 is preferentially activated, and after being filtered by the filter box 15, it is passed into the irrigation pipe 11, and the plants are irrigated through the irrigation pipe 11. Different planting cavities can be connected, and excess water is uniformly discharged into the water storage tank 9; when encountering bad weather, the entire planting box 8 is covered by a protective mechanism to reduce damage to the plants. All parts of the present invention adopt standardized design, which is convenient for transportation, installation and later maintenance. Users can freely combine them according to the roof area and needs to achieve personalized customization; it can improve the urban green area and urban resilience, and has functions such as rain and flood management, heat island effect control, and energy conservation. Through the photovoltaic-biological coupling system, the ecological and environmental value of the two can be maximized. The use of this invention can promote the reduction of urban rain and flood disasters, promote the harmonious coexistence of man and nature, and achieve sustainable development.

[0039] Furthermore, the dimensions of all structures in the present invention can be customized according to the roof area, which is convenient for transportation and installation.

[0040] Furthermore, the present invention adopts the existing Internet of Things platform: integrates all sensor data, realizes real-time monitoring and analysis of environmental parameters, automatically adjusts irrigation plans, water circulation strategies, etc. based on big data analysis, optimizes resource utilization, and provides a mobile APP or web platform. Users can remotely monitor the status of the roof, participate in greening management, and enjoy green life. Through the Internet of Things, big data analysis and AI technology, the intelligent management of the roof ecosystem is realized, the resource utilization efficiency is improved, and the operation and maintenance costs are reduced.

[0041] When it is sunny, the protective mechanism is automatically opened to generate photovoltaic power and shade the plants; when it is detected that the soil moisture in the planting box 8 is low, the valve of the water storage tank 9 is automatically opened to pass the water in the water storage tank 9 into the planting box 8 for irrigation; at the same time, when it rains, the protective mechanism is closed, and the plants on the green roof absorb rainwater to meet the water and nutrient supply required for plant growth, and the rainwater management function of the green roof is brought into play. Rainwater that exceeds the rainwater retention capacity of the green roof is stored in the water storage tank 9. When the water level in the water storage tank 9 is detected to be too high, the valve can be automatically opened for drainage.

[0042] Further optimization scheme, the protection mechanism includes a support 2 fixed to the bottom plate 1, a receiving tube 3 is fixed to the top of the support 2, a second motor 25 is fixed to the receiving tube 3, an output shaft of the second motor 25 is fixed to one end of a reel 26, the other end of the reel 26 is rotatably connected to the inner wall of the receiving tube 3, a protection plate 27 is wound around the reel 26, the protection plate 27 can cover the entire planting box 8, the end of the protection plate 27 extends out of the receiving tube 3 and is fixed to a limit plate 28, the limit plate 28 is in contact with the outer wall of the receiving tube 3, and the two sides of the receiving tube 3 are symmetrically fixed with arc plates 6, and a driving assembly is installed in the arc plate 6, and the driving assembly is fixed to the limit plate 28. The driving assembly drives the limit plate 28 to move, and the limit plate 28 drives the protection plate 27 to move along the arc plate 6 until the planting box 8 below is covered; after use, the reel 26 is driven to rotate by the second motor 25, and the reel 26 retracts the protection plate 27 into the receiving tube 3 to save space.

[0043] Further optimized solution, the driving assembly includes a slide rail 19 fixed to the inner wall of the arc plate 6, a slider 20 is slidably connected to the slide rail 19, a first motor 22 is fixed inside the slider 20, a gear 23 is fixed to the output shaft of the first motor 22, a tooth groove 24 is provided on the slide rail 19, the tooth groove 24 is meshed with the gear 23, an extension rod 21 is fixed to the side wall of the slider 20, the extension rod 21 extends out of the arc plate 6 and is slidably connected to the arc plate 6, and the extension rod 21 is fixed to the limit plate 28. The first motor 22 drives the gear 23 to rotate, the gear 23 moves along the tooth groove 24, thereby driving the slider 20 to move along the slide rail 19, the slider 20 drives the extension rod 21 to move, and the extension rod 21 drives the limit plate 28 to move, thereby completing the covering work.

[0044] According to a further optimization scheme, the photovoltaic assembly includes a support plate 7 fixedly connected to one end of an arc plate 6 away from the accommodating tube 3, a column 4 is provided on one side of the support plate 7, the column 4 is fixedly connected to the bottom plate 1, and a photovoltaic panel 5 is rotatably connected between the column 4 and the support plate 7.

[0045] To further optimize the solution, a third motor 31 is fixedly connected in the column 4, and a connecting shaft 32 is fixedly connected to the output shaft of the third motor 31. The end of the connecting shaft 32 away from the third motor 31 is rotatably connected to the support plate 7, and the connecting shaft 32 passes through the photovoltaic panel 5 and is fixedly connected to the photovoltaic panel 5. When necessary, the third motor 31 is started to drive the connecting shaft 32 to rotate, and the connecting shaft 32 drives the photovoltaic panel 5 to rotate 90 degrees clockwise, thereby blocking both sides of the planting box 8, further improving the protection performance; on sunny days, the photovoltaic panel 5 rotates to the optimal inclination angle under the geographical location and climatic conditions, giving full play to the power generation capacity of the photovoltaic panel. At the same time, the photovoltaic panel 5 is located above the plant. On the one hand, it plays a role in blocking sunlight, cooling the roof and the planting space below, and promoting plant growth. On the other hand, it efficiently captures and stores solar energy; on rainy days, the storage photovoltaic panel 5 rotates to its original position, so that rainfall directly enters the planting cavity, realizing precise regulation of the plant growth environment and soil moisture. The photovoltaic module can not only meet the power demand of the device itself, but also supply power to surrounding buildings through the grid-connected system, so as to realize efficient utilization of energy and distributed power generation; the plants under the photovoltaic panel 5 can increase the water vapor content under the panel through transpiration, thereby reducing the temperature of the photovoltaic panel and improving the power generation efficiency. At the same time, the increase of humidity under drought conditions also helps the growth of plants; the photovoltaic panel 5 can be automatically opened on sunny days to provide necessary shade for the plants and reduce water evaporation. This intelligent opening and closing system can automatically adjust according to weather conditions and plant needs to ensure that the solar energy is captured as much as possible while protecting the plants; the shading effect of the photovoltaic panel 5 can further enhance the cooling function of the roof, reduce the surface temperature of the roof, and reduce the temperature inside the building, so as to reduce the use of air conditioning and save energy consumption; the electric energy generated by the photovoltaic panel 5 can be directly supplied to the irrigation system, motor, sensor and other equipment in the device to realize energy self-sufficiency. When the energy stored in the photovoltaic panel 5 is not enough to supply the system equipment, it can be automatically converted into external energy, and the energy stored in the photovoltaic panel 5 is used first; the photovoltaic panel 5 provides renewable energy for the building, reduces the dependence on fossil fuels, and reduces carbon emissions. In the fall and winter, the photovoltaic panels can be adjusted to a horizontal position and cover the surface of the green roof, protecting the dead vegetation and soil from bird damage and wind erosion.

[0046] Further optimization scheme, the filter box 15 is fixedly connected and connected with the first connecting pipe 16, the first connecting pipe 16 is connected with the irrigation pipe 11, the water tank 9 is fixedly connected and connected with the second connecting pipe 17, the second connecting pipe 17 is fixedly connected and connected with the water inlet pipe 14, one end of the water inlet pipe 14 is connected with the filter box 15, and the other end of the water inlet pipe 14 is connected with the external water source. When watering, the water in the water tank 9 is used first, enters the water inlet pipe 14 through the first connecting pipe 16, and after being filtered by the filter box 15, it is passed into the irrigation pipe 11 through the second connecting pipe 17 for watering; a water level gauge is installed in the water tank 9, and when the water in the water tank 9 is insufficient, an external water source is enabled for watering; solenoid valves are installed in all pipes for easy intelligent control.

[0047] To further optimize the solution, a drain pipe 18 is fixedly connected to one side of the water tank 9 away from the second connecting pipe 17. When there is too much water in the water tank 9, the valve of the drain pipe 18 is opened to drain the water, and the water volume is intelligently adjusted according to the rainfall and water demand.

[0048] Further optimization scheme, the top of the water storage tank 9 is detachably connected with a protective net 10. The setting of the protective net 10 can prevent leaves and large impurities from entering the water storage tank 9 and increasing the burden of the filter box 15.

[0049] According to a further optimized solution, the bird-repelling structure 13 includes a support rod fixedly connected to the bottom surface of the planting box 8, and a bird-repelling device is fixedly connected to the top of the support rod.

[0050] In a further optimized solution, the protective plate 27 includes a plurality of long plates 29 arranged at equal intervals, and two adjacent long plates 29 are connected by a plurality of ropes 30. The protective plate 27 is connected by the long plates 29 and the ropes 30, which is not only convenient for storage, but also leaves gaps, so that wind can pass through the gaps to ensure the balance of internal and external air pressures.

[0051] Furthermore, the long board 29 is arranged at intervals, and preferably in a hollow mode, which can protect the light transmittance while ensuring the light transmittance; and transparent thin film solar cells are laid on the long board. Transparent thin film solar cells are formed by attaching very thin photosensitive materials on substrates such as glass, stainless steel or plastic to form a thin film that can generate voltage. This battery has the characteristics of being light, flexible, and environmentally friendly, and its thickness is usually only a few microns. It is mainly composed of a transparent conductive layer, a photosensitive material layer, an electron transport layer, a hole transport layer, and a metal electrode. At the same time, the thin film solar cell has the advantages of small mass, thin thickness, and bendability, which is convenient for combining with surfaces of various shapes. The transparent thin film solar cell and the photovoltaic panel 5 can achieve the purpose of dual power generation and maximize the utilization rate of resources. In addition, a structure similar to this can also be added to one side of the water tank 9, so that the two arc-shaped plates 6 form a semicircle, which can cover the planting cavity and the water tank 9 together, especially in autumn and winter. Further improve the protection performance.

[0052] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A combined photovoltaic-green roof device for urban construction, characterized in that: The invention comprises a bottom plate (1), a planting box (8) is fixedly connected to the top surface of the bottom plate (1), a plurality of partitions (12) are fixedly connected inside the planting box (8), the plurality of partitions (12) divide the inside of the planting box (8) into a plurality of planting cavities, the plurality of planting cavities are used for planting plants, the planting cavities are filled with a growth matrix layer, a filter layer and a drainage layer, a humidity sensor is arranged in the soil, a bird-repelling structure (13) is arranged in the planting cavity, an irrigation pipe (11) is fixedly installed on the inner wall of the planting box (8), a water storage tank (9) is arranged on one side of the planting box (8), a filter box (15) is arranged on one side of the water storage tank (9), the filter box (15) is respectively connected to the irrigation pipe (11) and the water storage tank (9), a protective mechanism is arranged on the side of the planting box (8) away from the water storage tank (9), the protective mechanism can cover the entire planting box (8), photovoltaic components are arranged on both sides of the protective mechanism, and intelligent switch control can be performed according to actual needs.

2. The combined photovoltaic-green roof device for urban construction according to claim 1, characterized in that: The protective mechanism comprises a support (2) fixed to the bottom plate (1), a receiving tube (3) fixed to the top of the support (2), a second motor (25) fixed inside the receiving tube (3), an output shaft of the second motor (25) fixed to one end of a reel (26), the other end of the reel (26) rotatably connected to the inner wall of the receiving tube (3), a protective plate (27) wound around the reel (26), the protective plate (27) can cover the entire planting box (8), an end of the protective plate (27) extends out of the receiving tube (3) and is fixed to a limit plate (28), the limit plate (28) is in contact with the outer wall of the receiving tube (3), arc plates (6) are symmetrically fixed to both sides of the receiving tube (3), a drive assembly is installed inside the arc plate (6), and the drive assembly is fixed to the limit plate (28).

3. The combined photovoltaic-green roof device for urban construction according to claim 2, characterized in that: The driving assembly comprises a slide rail (19) fixedly connected to the inner wall of the arc-shaped plate (6); a slider (20) is slidably connected to the slide rail (19); a first motor (22) is fixedly connected to the slider (20); an output shaft of the first motor (22) is fixedly connected to a gear (23); a tooth groove (24) is provided on the slide rail (19); the tooth groove (24) is meshed with the gear (23); an extension rod (21) is fixedly connected to the side wall of the slider (20); the extension rod (21) extends out of the arc-shaped plate (6) and is slidably connected to the arc-shaped plate (6); and the extension rod (21) is fixedly connected to the limit plate (28).

4. The combined photovoltaic-green roof device for urban construction according to claim 2, characterized in that: The photovoltaic assembly comprises a support plate (7) fixedly connected to one end of the arc plate (6) away from the accommodating tube (3), a column (4) is provided on one side of the support plate (7), the column (4) is fixedly connected to the bottom plate (1), and a photovoltaic panel (5) is rotatably connected between the column (4) and the support plate (7).

5. The combined photovoltaic-green roof device for urban construction according to claim 4, characterized in that: A third motor (31) is fixedly connected inside the column (4); an output shaft of the third motor (31) is fixedly connected to a connecting shaft (32); an end of the connecting shaft (32) away from the third motor (31) is rotatably connected to the support plate (7); and the connecting shaft (32) passes through the photovoltaic panel (5) and is fixedly connected to the photovoltaic panel (5).

6. The combined photovoltaic-green roof device for urban construction according to claim 1, characterized in that: The filter box (15) is fixedly connected to and communicated with a first connecting pipe (16), the first connecting pipe (16) is communicated with the irrigation pipe (11), the water storage tank (9) is fixedly connected to and communicated with a second connecting pipe (17), the second connecting pipe (17) is fixedly connected to and communicated with a water inlet pipe (14), one end of the water inlet pipe (14) is communicated with the filter box (15), and the other end of the water inlet pipe (14) is communicated with an external water source.

7. The combined photovoltaic-green roof device for urban construction according to claim 6, characterized in that: A side of the water storage tank (9) away from the second connecting pipe (17) is fixedly connected to and communicated with a drainage pipe (18).

8. The combined photovoltaic-green roof device for urban construction according to claim 1, characterized in that: The top of the water storage tank (9) is detachably connected with a protective net (10).

9. The combined photovoltaic-green roof device for urban construction according to claim 1, characterized in that: The bird-repelling structure (13) comprises a support rod fixedly connected to the bottom surface of the planting box (8), and a tray is fixedly connected to the top of the support rod.

10. The combined photovoltaic-green roof device for urban construction according to claim 2, characterized in that: The protective plate (27) comprises a plurality of long plates (29) arranged at equal intervals, and two adjacent long plates (29) are connected by a plurality of ropes (30).

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