Energy-saving roof structure for building design

Abstract

The invention relates to the field of building roofs, in particular to an energy-saving roof structure for building design, and solves the problems that green plants are generally directly exposed on a roof to be planted in order to obtain enough illumination when the green plants are planted in an existing roof structure, but the green plants are not directly exposed on the roof when the green plants are in consecutive rainy days, especially in some areas with much rainfall. The green plant planting device comprises a top plate and a supporting piece at the bottom of the top plate, the supporting piece is connected with a first supporting rod in the horizontal outward direction, the supporting piece is connected with a green plant planting groove through the first supporting rod, and the supporting piece is further connected with an inclined sliding groove inclining outwards from top to bottom; a second supporting rod is arranged in the inclined sliding groove in a sliding mode, the inclined sliding groove is connected with a water storage tank through the second supporting rod, and a first elastic limiting piece used for controlling the height of the water storage tank in the natural state is arranged. The green plant planting groove can be automatically protected to a certain degree in the earlier stage of rainy days of consecutive days, and green plants are protected.

Description

Technical Field

[0001] The invention relates to the technical field of green energy-saving buildings, and in particular to an energy-saving roof structure used in building design. Background Art

[0002] With the improvement of environmental awareness, green and energy-saving buildings not only cater to the general trend of environmental protection and energy conservation, but also bring a certain artistic beauty to the appearance of the building. Green and energy-saving buildings generally refer to buildings that can utilize natural energy such as wind energy, solar energy, rainwater, or plant green plants on them, which can achieve the effect of energy conservation and emission reduction.

[0003] When planting green plants on existing roof structures, in order for the green plants to obtain sufficient light at the same time, the green plants are generally planted directly exposed on the roof. However, when encountering continuous rainy weather, especially in some areas with heavy precipitation, the green plants are easily soaked in rain for a long time, which in turn has an adverse effect and also limits the types of green plants planted. If the green plants are planted on some buildings that cannot be accessed to the roof or on buildings that are usually unattended, it is inconvenient to deal with the accumulated water on the green plants in time, which causes certain inconveniences.

[0004] Therefore, the present invention provides an energy-saving roof structure for architectural design that can both ensure that green plants are exposed to sunlight on a regular basis and prevent the green plants from being soaked by rainwater, so as to solve the above-mentioned problem. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an energy-saving roof structure for building design to solve the problem that when planting green plants in the above-mentioned existing roof structure, in order for the green plants to obtain sufficient light at the same time, the green plants are generally planted directly exposed on the roof. However, when encountering continuous rainy weather, especially in some areas with heavy precipitation, the green plants are easily soaked in rain for a long time, which in turn produces adverse effects and limits the types of green plants planted. If the green plants are planted on some buildings that cannot be accessed to the roof or on buildings that are usually unattended, it is inconvenient to deal with the accumulated water on the green plants in time, which causes certain inconveniences.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] An energy-saving roof structure for architectural design, comprising a top plate and a support member at the bottom of the top plate, wherein the support member is connected to a first support rod in a horizontal outward direction, and is connected to a green plant planting groove through the first support rod, and the support member is also connected to an inclined slide groove inclined outward from top to bottom, a second support rod is slidably arranged in the inclined slide groove, and is connected to a water storage tank through the second support rod, and is provided with a first elastic limiter for controlling the height of the water storage tank in a natural state;

[0008] Under natural conditions, the water storage tank is staggered with the green plant planting tank, so that the green plants in the green plant planting tank can be exposed to light normally. When it rains, the water storage tank collects rainwater and its own weight increases, thereby overcoming the downward and outward movement of the first elastic limiter to shield the green plant planting tank and prevent the green plants in the green plant planting tank from being soaked for a long time.

[0009] Preferably, the first support rod adopts a telescopic structure, and a transmission mechanism is provided between the water storage tank and the green plant planting tank. When the water storage tank moves downward and outward, the green plant planting tank is driven to move inward through the transmission mechanism.

[0010] Preferably, the transmission mechanism includes a connecting rod connected to the first support rod, and hinge seats are respectively provided on the connecting rod and the second support rod. A telescopic member is provided between the two hinge seats, and the telescopic member includes a middle section and sleeve sections at both ends. A rotating shaft is provided on the middle section of the telescopic member, and the rotating shaft is connected to a fixed rod. The first elastic limiting member is a spring arranged between the connecting rod and the support member.

[0011] Preferably, a baffle is hinged on the outside of the water storage tank and is provided with a second elastic limiter, and a top piece is provided on the green plant planting tank. In a natural state, the baffle is in a vertical state, so that the green plants in the green plant planting tank can be normally illuminated. When the water storage tank moves downward and outward, the baffle is close to the top piece, and the top piece pushes the baffle, driving the baffle to overcome the second elastic limiter and rotate, so that the baffle assists in shielding the green plant planting tank to prevent the green plants in the green plant planting tank from being soaked for a long time.

[0012] Preferably, the baffle is made of reflective material.

[0013] Preferably, the upper surface of the top plate is sloped, and the lower end of the upper surface corresponds to the water storage tank.

[0014] Preferably, a water collecting tank is also included, a first water pump and a second water pump are provided between the water collecting tank and the water storage tank, the first water pump and the second water pump can be connected to the water collecting tank and the water storage tank respectively through pipelines, the first water pump is used to discharge the water in the water storage tank into the water collecting tank, and the second water pump is used to discharge the water in the water collecting tank into the water storage tank, a sprinkler is provided on the green plant planting tank, the sprinkler can be connected to the water storage tank through a pipeline, a rain sensor and a first water level sensor provided in the water storage tank are also included, the first water pump, the second water pump, the sprinkler, the rain sensor and the first water level sensor are electrically connected through a controller, and the controller includes a timer;

[0015] Under natural conditions, the water level in the water storage tank is lower than the first water level sensor, and the controller controls the sprinkler device to sprinkle water on the green plant planting tank at a fixed time, and after each sprinkle, the second water pump discharges water equal to the sprinkled amount from the water collection tank into the water storage tank;

[0016] When it rains and stops raining, if the water level in the water storage tank is higher than the first water level sensor, the first water pump is controlled to drain water from the water storage tank to the water collecting tank until the water level is lower than the first water level sensor.

[0017] Preferably, a second water level sensor is provided below the first water level sensor, and the second water level sensor is electrically connected to the controller. When the water level is lower than the second water level sensor, the second water pump is controlled to drain water from the water collecting tank to the water storage tank to a level higher than the second water level sensor and lower than the first water level sensor.

[0018] Preferably, an alarm device is also provided, which gives an alarm when the water level is continuously lower than the second water level sensor.

[0019] Preferably, a solar panel is provided on the top plate, and the first water pump, the second water pump, the sprinkler, the rain sensor and the first water level sensor are powered by the solar panel. The beneficial effects of the present invention are:

[0020] 1. When the present invention is in use, it can be connected to the house body for support through the support member, and green plants can be planted in the green plant planting groove. In a natural state, the water storage tank and the green plant planting groove are staggered, so that the water storage tank will not block the green plant planting groove, so that the green plants in the green plant planting groove can be normally illuminated. When it rains, the water storage tank collects rainwater and its own weight increases, thereby overcoming the downward and outward movement of the first elastic limit member to block the green plant planting groove and prevent the green plants in the green plant planting groove from being soaked for a long time. When the rain stops, the water in the water storage tank is drained to reset the water storage tank and the green plant planting groove. The present invention can automatically protect the green plant planting groove to a certain extent in the early stage of rainy weather for several days, thereby protecting the planted green plants in time.

[0021] 2. In the present invention, since the green plants in the green plant planting trough can be prevented from being soaked in rainwater for a long time, there are more choices in the types of green plants to be planted. In addition, in the present invention, in a natural state, the green plants are located on the outside below the roof, which increases the aesthetics of the building and does not occupy the top position, so other energy-saving devices can be installed on the top, and the space utilization rate is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle;

[0024] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0025] Figure 4 It is a schematic diagram of the overall structure of the present invention when it is connected to a room body;

[0026] Figure 5 It is a schematic diagram of the overall structure of the present invention when connected to a house body from another angle;

[0027] Figure 6 It is a schematic diagram of the structure of the bottom of the top plate when the present invention is connected to the house body;

[0028] Figure 7 for Figure 6 The enlarged schematic diagram of point B in the middle;

[0029] Figure 8 It is the control principle diagram of the present invention.

[0030] In the figure: 1. room body, 2. water collecting tank, 3. first water pump, 31. second water pump, 4. water storage tank, 5. green plant planting tank, 6. sprinkler, 7. baffle, 8. top member, 9. top plate, 10. solar panel, 11. cover plate, 12. support member, 13. first support rod, 14. second support rod, 15. inclined slide, 16. first elastic limit member, 17. telescopic member, 18. connecting rod, 19. hinge seat, 20. fixing rod, 21. rotating shaft. DETAILED DESCRIPTION

[0031] The following will refer to the attached Figures 1 to 8 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0032] Embodiment 1

[0033] An energy-saving roof structure for building design, such as the attached Figure 1 , Figure 2 As shown, it includes a top plate 9 and a support member 12 at the bottom of the top plate 9, and the support member 12 is connected to a first support rod 13 in a horizontal outward direction. In this embodiment, two first support rods 13 are respectively arranged on the left and right sides of the support member 12, and a green plant planting trough 5 is connected through the two first support rods 13 on the same side, and the notch of the green plant planting trough 5 is upward. The left and right sides of the support member 12 are also connected with an inclined slide 15 inclined outward from top to bottom, and a second support rod 14 is slidably arranged in the inclined slide 15, and a water tank 4 is connected through the second support rod 14, and the notch of the water tank 4 is upward. The height of the water tank 4 is higher than the green plant planting trough 5, and a first elastic limiter 16 for controlling the height of the water tank 4 in a natural state is provided.

[0034] Working principle: Taking the left part structure of the support member 12 as an example, in the natural state, the water tank 4 is staggered with the green plant planting tank 5, that is, the water tank 4 is located on the right above the green plant planting tank 5, and the water tank 4 is staggered with the top plate 9, that is, the water tank 4 is located on the left below the top plate 9, so that the green plants in the green plant planting tank 5 can be normally exposed to light. When it rains, the water tank 4 collects rainwater and its own weight increases. When a certain amount of rainfall is reached, the water tank 4 overcomes the first elastic limiter 16 and moves downward and leftward until the top of the green plant planting tank 5 is completely blocked, reducing rainwater from falling into the green plant planting tank 5 and avoiding the green plants in the green plant planting tank 5 from being soaked for a long time; the right part structure of the support member 12 is symmetrically arranged, and the principle is the same.

[0035] As attached Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, in specific use, this embodiment is connected and fixed to the house body 1 through the support member 12, and the green plant planting groove 5 can be used to plant green plants. The green plants can meet the light requirements in a natural state on sunny days, and the green plants can be protected in advance during consecutive rainy days. There are also more choices in the types of green plants to be planted. In addition, in this embodiment, under a natural state, the green plants are located on the outside below the top plate 9, which increases the aesthetics of the building and does not occupy the top position, so that other energy-saving devices can be arranged on the top, and the space utilization rate is high.

[0036] In addition, it should be noted that after several days of rainy weather, the water in the water storage tank 4 needs to be discharged. This can be done directly through a water pump device to automatically reset the water storage tank 4 and the green plant planting tank 5. In this embodiment, the green plants in the green plant planting tank 5 also need to be watered separately.

[0037] In addition, it should be noted that in this embodiment, when there is light rain and the insufficient rainfall has an adverse effect on the green plants, it is sufficient to drive the water storage tank 4 to move. In this case, the natural state is maintained.

[0038] In addition, it should be noted that in this embodiment, in order to quickly drive the water tank 4 to move in the early stage of continuous rainy weather, the notch above the water tank 4 should be appropriately larger, and rainwater slides toward the water tank 4 through the top plate 9, which can also increase the flow of rainwater toward the water tank 4, which is conducive to the rapid storage of water in the water tank 4.

[0039] In addition, it should be noted that, in this embodiment, sealing plates 11 are provided at the front and rear of the support member 12 to protect various structures.

[0040] As attached Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, in this embodiment, the first support rod 13 adopts a telescopic structure, specifically including an outer rod connected to the green plant planting trough 5 and an inner rod connected to the support member 12. The outer rod is slidably connected to the inner rod, and a transmission mechanism is provided between the water tank 4 and the green plant planting trough 5. When the water tank 4 moves downward and outward, the green plant planting trough 5 is driven to move inward through the transmission mechanism, which can accelerate the relative movement between the water tank 4 and the green plant planting trough 5, and after the movement, the green plant planting trough 5 is closer to the top plate 9, and the rain shielding effect is better.

[0041] Specifically, the transmission mechanism includes a connecting rod 18 connected to the outer rods of the two first support rods 13, and an articulated seat 19 is respectively provided on the connecting rod 18 and the second support rod 14. A telescopic member 17 is provided between the two articulated seats 19. The telescopic member 17 is inclined inward from top to bottom. The hinge axis connecting the telescopic member 17 and the articulated seat 19 is along the front-to-back direction. The telescopic member 17 includes a middle section and sleeve sections at both ends. The sleeve section of the telescopic member 17 is hinged to the articulated seat 19. A rotating shaft 21 along the front-to-back direction is provided on the middle section of the telescopic member 17. The rotating shaft 21 is connected to a fixing rod 20. When installed, the fixing rod 20 is fixedly connected to the house body 1. The first elastic limit member 16 is a spring arranged between the connecting rod 18 and the support member 12.

[0042] Working principle: Under the natural state, the connecting rod 18 is limited in position by the first elastic limiter 16, thereby limiting the position of the outer rod, and further limiting the position of the green plant planting trough 5. When the position of the water storage tank 4 drops and moves outward, the angle and length of the telescopic member 17 are changed, thereby driving the connecting rod 18 to move inward, and further driving the outer rod and the green plant planting trough 5 to move inward, so that when the water storage tank 4 moves downward and outward, the green plant planting trough 5 is driven inward by the transmission mechanism. In addition, during specific use, a rubber protective cover can be wrapped around the corresponding structure to prevent the structure from getting damp and rusty.

[0043] As attached Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, in this embodiment, a baffle 7 is hinged on the outer side of the water tank 4, and a second elastic limiting member is provided. The second elastic limiting member can be a torsion spring arranged between the baffle 7 and the water tank 4. A top member 8 is provided near the outer side of the green plant planting tank 5. In a natural state, the baffle 7 is acted upon by the second elastic limiting member and is in a vertical state, so that the green plants in the green plant planting tank 5 can be normally illuminated. When the water tank 4 moves downward and outward, the baffle 7 is close to the top member 8, and the top member 8 pushes the outer side of the baffle 7 close to the bottom, driving the baffle 7 to overcome the second elastic limiting member and rotate, so that the baffle 7 assists in shielding the green plant planting tank 5, further preventing rainwater from hitting the green plant planting tank 5, and avoiding the green plants in the green plant planting tank 5 from being soaked for a long time.

[0044] In this embodiment, the baffle 7 is made of reflective material. Under natural conditions, sunlight can hit the baffle 7 and also be reflected to the green plant planting trough 5 to improve the lighting effect.

[0045] As attached Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, in this embodiment, the upper surface of the top plate 9 is a slope, and the lower end of the upper surface corresponds to the water storage tank 4. When it rains, rainwater falling on the top plate 9 can flow along the slope to the water storage tank 4 to achieve rapid water storage.

[0046] Embodiment 2

[0047] As attached Figure 1 , Figure 4 , Figure 5 , Figure 8 As shown, the difference between this embodiment and embodiment one is that this embodiment also includes a water collecting tank 2. When in use, the water collecting tank 2 can be set on one side of the house body 1. A first water pump 3 and a second water pump 31 are provided between the water collecting tank 2 and the water storage tank 4. The first water pump 3 and the second water pump 31 can be directly provided on the water collecting tank 2. The first water pump 3 and the second water pump 31 can be connected to the water collecting tank 2 and the water storage tank 4 through pipelines respectively. The first water pump 3 is used to discharge the water in the water storage tank 4 into the water collecting tank 2. The second water pump 31 is used to discharge the water in the water collecting tank 2 into the water storage tank 4. A sprinkler 6 is provided on the green plant planting tank 5. The sprinkler 6 can be connected to the water storage tank 4 through a pipeline. A rainwater sensor and a first water level sensor arranged in the water storage tank 4 are also included. The first water pump 3, the second water pump 31, the sprinkler 6, the rainwater sensor and the first water level sensor are electrically connected through a controller. The controller includes a timer.

[0048] Working principle: a certain amount of water is pre-stored in the water tank 4 and the water collecting box 2. Under natural conditions, the water level in the water tank 4 is lower than the first water level sensor. The controller regularly controls the sprinkler 6 to sprinkle water on the green plant planting trough 5, and after each sprinkling, the second water pump 31 discharges water equal to the sprinkling amount from the water collecting box 2 into the water tank 4, thereby realizing the function of automatic sprinkling; in this embodiment, the rain sensor is arranged on the top plate 9. When it rains, after the rain stops, since the top plate 9 adopts a slope structure, it is not easy to accumulate water, and the rain stop can be quickly detected by the rain sensor. At this time, if the water level in the water tank 4 is higher than the first water level sensor, the first water pump 3 is controlled to drain water from the water tank 4 to the water collecting box 2 until the water level is lower than the first water level sensor, that is, after each rain, rainwater can be collected by the water collecting box 2, and the water tank 4 can be restored to a natural state, and the light is not affected after the rain stops.

[0049] In this embodiment, the water storage tank 4 can be drained without manual work after each rain, and rainwater resources can be collected for daily watering, thereby realizing automation of water collection and watering, being self-sufficient, and being suitable for use in houses that are unattended for a long time.

[0050] In this embodiment, a second water level sensor is provided below the first water level sensor, and the second water level sensor is electrically connected to the controller. When the water level is lower than the second water level sensor, the second water pump 31 is controlled to drain water from the water collecting tank 2 to the water storage tank 4 to a level higher than the second water level sensor and lower than the first water level sensor.

[0051] In the present embodiment, since part of the water in the water tank 4 will evaporate naturally, when there is no rain for several days, the water in the water tank 4 will become less and less. The second water level sensor can detect that when the water level is too low and will affect the watering, the water tank 4 is automatically added with water to ensure the normal watering. In the present embodiment, an alarm device is also provided. When the water level continues to be lower than the second water level sensor, that is, the water collecting tank 2 is empty and water cannot be added to the water tank 4, an alarm is issued. Specifically, the alarm can be issued through a remote signal. Specifically, the water collecting tank 2 can be equipped with a water supply pipeline. Normally, the water supply pipeline does not work and is sprayed by rainwater. When the water volume is insufficient, water is added through the water supply pipeline, thereby ensuring the normal operation of each structure.

[0052] In this embodiment, a solar panel 10 is provided on the top plate 9, and the solar panel 10 is equipped with a battery. The first water pump 3, the second water pump 31, the sprinkler 6, the rain sensor and the first water level sensor are powered by the solar panel 10 and the battery.

[0053] When in use, this embodiment can make full use of various natural resources, has a high degree of intelligence, does not require human care at ordinary times, and is highly practical.

[0054] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0055] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle 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 these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An energy-saving roof structure for building design, comprising a top plate (9) and a support member (12) at the bottom of the top plate (9), characterized in that: The support member (12) is connected to a first support rod (13) extending horizontally outward, and is connected to a green plant planting trough (5) via the first support rod (13); the support member (12) is also connected to an inclined slide groove (15) inclined outward from top to bottom, a second support rod (14) is slidably arranged in the inclined slide groove (15), and is connected to a water storage tank (4) via the second support rod (14), and is provided with a first elastic limiter (16) for controlling the height of the water storage tank (4) in a natural state; In a natural state, the water storage tank (4) and the green plant planting tank (5) are staggered, so that the green plants in the green plant planting tank (5) can be exposed to light normally. When it rains, the water storage tank (4) collects rainwater and its own weight increases, thereby overcoming the downward and outward movement of the first elastic limiter (16) to shield the green plant planting tank (5) and prevent the green plants in the green plant planting tank (5) from being soaked for a long time.

2. The energy-saving roof structure for architectural design according to claim 1, characterized in that: The first support rod (13) adopts a telescopic structure, and a transmission mechanism is provided between the water storage tank (4) and the green plant planting tank (5). When the water storage tank (4) moves downward and outward, the green plant planting tank (5) is driven to move inward through the transmission mechanism.

3. The energy-saving roof structure for architectural design according to claim 2, characterized in that: The transmission mechanism comprises a connecting rod (18) connected to a first support rod (13); hinge seats (19) are respectively provided on the connecting rod (18) and the second support rod (14); a telescopic member (17) is provided between the two hinge seats (19); the telescopic member (17) comprises a middle section and sleeve sections at both ends; a rotating shaft (21) is provided on the middle section of the telescopic member (17); the rotating shaft (21) is connected to a fixed rod (20); and a first elastic limiting member (16) is a spring provided between the connecting rod (18) and the support member (12).

4. The energy-saving roof structure for architectural design according to claim 1, characterized in that: A baffle (7) is hingedly connected to the outside of the water storage tank (4), and a second elastic limiting member is provided. A top member (8) is provided on the green plant planting tank (5). In a natural state, the baffle (7) is in a vertical state, so that the green plants in the green plant planting tank (5) can be normally illuminated. When the water storage tank (4) moves downward and outward, the baffle (7) approaches the top member (8), and the top member (8) pushes the baffle (7), driving the baffle (7) to overcome the second elastic limiting member and rotate, so that the baffle (7) assists in shielding the green plant planting tank (5), thereby preventing the green plants in the green plant planting tank (5) from being soaked for a long time.

5. The energy-saving roof structure for architectural design according to claim 4, characterized in that: The baffle (7) is made of reflective material.

6. The energy-saving roof structure for architectural design according to claim 1, characterized in that: The upper surface of the top plate (9) is a slope, and the lower end of the upper surface corresponds to the water storage tank (4).

7. The energy-saving roof structure for architectural design according to claim 1, characterized in that: It also includes a water collecting tank (2), a first water pump (3) and a second water pump (31) are arranged between the water collecting tank (2) and the water storage tank (4), the first water pump (3) and the second water pump (31) can be connected to the water collecting tank (2) and the water storage tank (4) respectively through pipelines, the first water pump (3) is used to discharge water in the water storage tank (4) into the water collecting tank (2), and the second water pump (31) is used to discharge water in the water collecting tank (2) into the water storage tank (4), a sprinkler (6) is arranged on the green plant planting tank (5), and the sprinkler (6) can be connected to the water storage tank (4) through a pipeline, and it also includes a rain sensor and a first water level sensor arranged in the water storage tank (4), the first water pump (3), the second water pump (31), the sprinkler (6), the rain sensor and the first water level sensor are electrically connected through a controller, and the controller includes a timer; In a natural state, the water level in the water storage tank (4) is lower than the first water level sensor, and the controller controls the watering device (6) to sprinkle water on the green plant planting tank (5) at a fixed time, and after each sprinkling, the second water pump (31) discharges water in an amount equal to the amount of sprinkling from the water collection tank (2) into the water storage tank (4); When it rains and the rain stops, if the water level in the water storage tank (4) is higher than the first water level sensor, the first water pump (3) is controlled to drain water from the water storage tank (4) into the water collection tank (2) until the water level is lower than the first water level sensor.

8. The energy-saving roof structure for architectural design according to claim 7, characterized in that: A second water level sensor is provided below the first water level sensor, and the second water level sensor is electrically connected to the controller. When the water level is lower than the second water level sensor, the second water pump (31) is controlled to drain water from the water collecting tank (2) to the water storage tank (4) to a level higher than the second water level sensor and lower than the first water level sensor.

9. The energy-saving roof structure for architectural design according to claim 8, characterized in that: An alarm device is also provided, which gives an alarm when the water level is continuously lower than the second water level sensor.

10. The energy-saving roof structure for architectural design according to claim 8, characterized in that: A solar panel (10) is provided on the top plate (9), and the first water pump (3), the second water pump (31), the sprinkler device (6), the rain sensor and the first water level sensor are powered by the solar panel (10).

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