Green building ecological roof structure

Abstract

The application discloses a green building ecological roof structure, and relates to the technical field of roof structures, which comprises a roof, a planting substrate, seedlings and a water collecting tank, the water collecting tank is located around the planting substrate, the roof is provided with a transparent cover shell, water is collected in the water collecting tank, the transparent cover shell extends to the water collecting tank around, and is liquid sealed by the water in the water collecting tank, the seedlings are located in a cavity formed by the transparent cover shell, the roof and the water collecting tank, and an irrigation assembly for watering the seedlings is arranged on the water collecting tank. The application effectively solves the problem that seedlings cannot grow normally due to excessive temperature difference.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of roof structures, in particular to a green building ecological roof structure. BACKGROUND

[0002] The ecological roof is also called a planting roof, roof greening and the like. The ecological roof is provided with a planting substrate, and vegetation is planted on the planting substrate, so that the ecological roof has the functions of intercepting rainwater, reducing the urban heat island effect, purifying air, improving the building energy-saving effect and the like; and the ecological roof can effectively alleviate urban floods and increase the green area of the city.

[0003] When the vegetation is planted on the roof, a plurality of seedlings are uniformly planted on the planting substrate, and then the seedlings are directly exposed to the air; in the rainy season, rainwater can directly irrigate the seedlings, and meanwhile, the excess rainwater can be collected to irrigate the seedlings on sunny days. Meanwhile, the seedlings on the roof are not sheltered by other objects and can fully receive the irradiation of sunlight, which is helpful to the growth of the seedlings.

[0004] According to the related technology in the above, in the area with large diurnal temperature difference, the seedlings on the roof are exposed to the air, so that the seedlings are prone to fail to grow normally due to the excessively large diurnal temperature difference. SUMMARY

[0005] In order to improve the problem that the seedlings on the roof are prone to fail to grow normally due to the excessively large diurnal temperature difference, the application provides a green building ecological roof structure.

[0006] The green building ecological roof structure provided by the application adopts the following technical scheme:

[0007] The green building ecological roof structure comprises a roof, a planting substrate, seedlings and a water collecting tank. The water collecting tank is located around the planting substrate. The roof is provided with a transparent cover. Water is collected in the water collecting tank. The transparent cover extends to the water collecting tank around, and is liquid sealed by the water in the water collecting tank. The seedlings are located in a cavity formed by the transparent cover, the roof and the water collecting tank. The water collecting tank is provided with an irrigation assembly for irrigating the seedlings.

[0008] By adopting the above technical scheme, the seedlings are planted on the roof through the planting substrate. The transparent cover shields the seedlings on the roof. The water collecting tank is used for collecting rainwater. The irrigation assembly can use the water in the water collecting tank to irrigate the seedlings. Meanwhile, the transparent cover is sealed around by the water in the water collecting tank, so that the air circulation inside and outside the transparent cover is blocked, and the problem that the seedlings fail to grow normally due to the excessively large temperature difference is effectively avoided.

[0009] Optionally, the transparent cover comprises a plurality of inclined portions and a plug-in portion, the plug-in portion is located at one end of the inclined portion and is plugged into the water collecting tank, a plurality of the inclined portions are arranged to enclose the roof, the inclined portion is hollow, the plug-in portion is provided with overflow holes communicating with the inclined portion, and the inclined portion is provided with a water injection hole at the end away from the plug-in portion.

[0010] By using the above technical scheme, in the rainy season, rainwater can enter the inclined portion from the water injection hole at one end of the inclined portion, or water can be manually injected into the inclined portion through the water injection hole, and the other end of the inclined portion is plugged into the water collecting tank through the plug-in portion. Since the inclined portion is communicated with the water collecting tank through the overflow holes on the plug-in portion, when the water in the water collecting tank liquid seals the overflow holes, the water in the inclined portion can be stably stored in the inclined portion. The inclined portion with water can reduce the heat exchange between the inside and outside of the inclined portion, further reducing the temperature change of the environment for seedling growth, effectively avoiding the problem that the seedlings cannot grow normally due to excessive temperature difference. In addition, the water in the inclined portion can be used as a reserve for watering seedlings.

[0011] Optionally, the inclined portion comprises an outer shell and a plurality of inner shells, the plurality of inner shells are arranged at intervals, and a transparent latex bag is connected between adjacent two inner shells, and the roof is provided with a support for supporting the inner shell.

[0012] By using the above technical scheme, the support stably sets up the inner shell on the inside of the outer shell, and the latex bag seals and connects the adjacent two inner shells, so that in rainy weather, water is stored in the inclined portion, and water is also contained in the latex bag. Under the action of gravity, the latex bag protrudes towards the seedlings. Since the latex bag is transparent, the light on the outside of the outer shell penetrates through the outer shell and is converged by the protruding transparent latex bag, and then irradiates the seedlings. If the inner shell is provided with a plurality of inner shells, the latex bag is also provided with a plurality of latex bags, so that the seedlings in each part of the transparent cover can be irradiated by the converged light, and thus the seedlings can still grow rapidly in the condition of dim light in rainy weather. In sunny weather, the water in the water collecting tank and the inclined portion has been used for watering the seedlings, at this time, the latex bag is empty, and the latex bag is contracted to a flat state under the action of its own elasticity. At this time, the latex bag cannot converge the light, and the time of irradiation of the seedlings by strong light is reduced, the photosynthesis of the seedlings is slowed down, and the absorption of water by the seedlings is reduced, so that the staff has more time to add water.

[0013] Optionally, the inclined portion is provided with a filter device at the water injection hole.

[0014] By using the above technical scheme, the filter device can filter the impurities dissolved in the rainwater, effectively avoiding the impurities from entering the inclined portion and accumulating on the latex bag, thereby affecting the contraction of the latex bag to a flat state. At the same time, the impurities are also prevented from entering the inclined portion and affecting the light transmittance of the inclined portion.

[0015] Optionally, the irrigation assembly comprises a water guide pipe, a solenoid valve and a water content sensor, one end of the water guide pipe is located in the water collecting tank, the other end of the water guide pipe extends to the planting substrate, the solenoid valve is located on the water guide pipe, the water content sensor is located in the planting substrate, and the water content sensor is electrically connected with the solenoid valve.

[0016] By adopting the above technical scheme, the water content sensor monitors the water content in the planting substrate, when the water content in the planting substrate is too low, the water content sensor drives the solenoid valve to open, so that the water in the water collecting tank can enter the planting substrate through the water guide pipe, thereby helping to realize automatic watering of the seedlings.

[0017] Optionally, an alarm is further arranged on the roof, a liquid level meter is arranged on the inner wall of the water collecting tank, and the liquid level meter is electrically connected with the alarm.

[0018] By adopting the above technical scheme, when the water in the water collecting tank is lower than the scale value set on the liquid level meter, the liquid level meter drives the alarm to alarm, reminding the staff to add water to the water collecting tank, so as to ensure the stable growth of the seedlings.

[0019] Optionally, a shielding device is arranged on the transparent cover, and the shielding device is electrically connected with the alarm.

[0020] By adopting the above technical scheme, when the alarm alarms, the water in the water collecting tank is not sufficient at this time, at this time the alarm can drive the shielding assembly to shield the transparent cover, reduce the photosynthesis of the seedlings, and reduce the absorption of water by the seedlings, so as to give the staff more time to add water.

[0021] Optionally, the shielding assembly comprises a reel rotatably arranged on the transparent cover, a shade cloth wound on the reel, and a driving member for driving the reel to rotate, and the reel and the driving member are located at the top of the transparent cover.

[0022] By adopting the above technical scheme, when it is necessary to shield the transparent cover, only the driving member needs to be started, the driving member drives the reel to rotate, the rotating reel unwinds the shade cloth, and the shade cloth slides from the top of the transparent cover under the action of gravity, thereby completing the automatic shielding of the transparent cover.

[0023] Optionally, a counterweight is arranged at one end of the shade cloth away from the reel.

[0024] By adopting the above technical scheme, the counterweight can pull the shade cloth to slide quickly along the inclined direction of the transparent cover, so that the shade cloth is quickly laid on the transparent cover.

[0025] Optionally, a hydrophobic layer is arranged on the inner wall and the outer wall of the transparent cover.

[0026] By adopting the technical scheme, the hydrophobic layer on the outer wall of the transparent cover shell can reduce water accumulation on the outer wall of the transparent cover shell, thereby avoiding the influence of water accumulation on the outer wall of the transparent cover shell on the speed of the shade cloth being laid on the transparent cover shell. The hydrophobic layer on the inner wall of the transparent cover shell enables water generated by the seedlings under the action of respiration to quickly slide along the inclined direction of the inner wall of the transparent cover shell and be collected into the water collecting groove, thereby completing the recycling of water.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. The four sides of the transparent cover shell are sealed by water in the water collecting groove, which blocks the air flow between the inside and outside of the transparent cover shell, effectively avoiding the problem that the seedlings cannot grow normally due to a large temperature difference;

[0029] 2. In rainy weather, water is stored in the inclined part and the latex bag; under the action of gravity, the latex bag protrudes towards the seedlings. Since the latex bag is transparent, the light outside the shell penetrates through the shell and is gathered by the protruding transparent latex bag and irradiated to the seedlings. If multiple inner shells are provided, multiple latex bags are also provided, so that the seedlings in each part of the transparent cover shell can be irradiated by the gathered light, thereby enabling the seedlings to grow quickly even in the condition of dim light in rainy weather;

[0030] 3. In sunny weather, the water in the water collecting groove and the inclined part has been used for watering the seedlings, at this time there is no water in the latex bag, and the latex bag shrinks to a flat state under the action of its own elasticity; at this time, the latex bag will not gather light, and the time of the seedlings being irradiated by strong light is also reduced, slowing down the photosynthesis of the seedlings, thereby reducing the absorption of water by the seedlings, and prolonging the time for the staff to add water. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structural schematic view of the roof, the transparent cover shell and the shading device in the embodiment of the present application.

[0032] Figure 2 is a sectional structural schematic view of the roof and the planting substrate in the embodiment of the present application.

[0033] Figure 3 is a structural schematic view of the transparent cover shell, the latex bag and the support in the embodiment of the present application.

[0034] Figure 4 is Figure 2 is an enlarged schematic view of part A in FIG. 6.

[0035] Figure 5 is Figure 1 is an enlarged schematic view of part B in FIG. 6.

[0036] Fig. 1, roof; 2, planting substrate; 21, bottom soil layer; 22, sponge layer; 23, top soil layer; 3, seedling; 4, water collecting tank; 5, transparent cover; 51, inclined part; 511, outer shell; 512, inner shell; 52, splicing part; 6, irrigation assembly; 61, water guide pipe; 62, electromagnetic valve; 63, moisture sensor; 7, overflow hole; 8, water injection hole; 9, latex bag; 10, support; 11, filtering device; 12, alarm; 13, liquid level meter; 14, shielding device; 141, reel; 142, shade cloth; 143, driving member; 15, counterweight; 16, bevel gear; 17, ear plate; 18, top cover; 19, stand. DETAILED DESCRIPTION

[0037] The following will be described in detail with reference to the accompanying drawings. Figures 1-5 The present application is further described in detail.

[0038] The present application discloses a green building ecological roof structure. Referring to Figure 1 and Figure 2 A green building ecological roof structure comprises a roof 1, a planting substrate 2, seedlings 3 and a water collecting tank 4. The planting substrate 2 comprises a bottom soil layer 21, a sponge layer 22 and a top soil layer 23 which are sequentially laid on the roof 1, and a plurality of seedlings 3 are evenly arranged and planted on the planting substrate 2. The water collecting tank 4 is arranged around the four sides of the planting substrate 2. In the present application, the water collecting tank 4 is arranged in a square shape, and in other embodiments, the water collecting tank 4 can be circular, triangular or the like. The longitudinal section of the water collecting tank 4 is in the shape of T, and the width of the slot on the side of the water collecting tank 4 away from the roof 1 is greater than the width of the slot on the side of the water collecting tank 4 close to the roof 1.

[0039] Referring to Figure 1 and Figure 3 A transparent cover 5 is arranged on the roof 1, and the transparent cover 5 is made of acrylic plate. The distance from the middle of the transparent cover 5 to the roof 1 is greater than the distance from the edge of the transparent cover 5 to the roof 1. When it is raining, the rainwater on the transparent cover 5 can slide along the outer wall of the transparent cover 5 to the direction of the roof 1. In order to reduce the accumulation of rainwater on the transparent cover 5, a water-repellent layer is arranged on the outer wall of the transparent cover 5. In the present application, the water-repellent layer is specifically a transparent water transmission film. The four edges of the transparent cover 5 extend into the water collecting tank 4, so that the seedlings 3 are located in the cavity formed by the transparent cover 5, the roof 1 and the water collecting tank 4.

[0040] The water collecting tank 4 can not only collect the rainwater directly falling, but also collect the rainwater on the outer wall of the transparent cover shell 5, and in addition, water can be manually injected into the water collecting tank 4. When the water collecting tank 4 contains water, the periphery of the transparent cover shell 5 is liquid sealed by the water in the water collecting tank 4, which blocks the air circulation between the inside and outside of the transparent cover shell 5, reduces the heat exchange speed between the inside and outside of the transparent cover shell 5, and effectively avoids the problem that the seedlings 3 cannot grow normally due to too large temperature difference.

[0041] Since the transparent cover shell 5 is light-transmitting, the seedlings 3 can perform photosynthesis and respiration under the shade of the transparent cover shell 5. When the seedlings 3 perform respiration, the water generated by the seedlings 3 can slide to the water collecting tank 4 along the inclined direction of the inner wall of the transparent cover shell 5. In order to accelerate the rapid sliding of water, a hydrophobic layer is also arranged on the inner wall of the transparent cover shell 5, and the hydrophobic layer on the inner wall of the transparent cover shell 5 is specifically transparent water conveying paint.

[0042] In order to further improve the blocking effect of the transparent cover shell 5 on heat exchange, referring to Figure 1 and Figure 3 , the transparent cover shell 5 includes a plurality of inclined portions 51 and a plug-in portion 52. Since the water collecting tank 4 is arranged in a square shape, in the embodiment of the present application, four inclined portions 51 are arranged, and the inclined portions 51 are isosceles trapezoidal. The four inclined portions 51 are connected end to end and are arranged to surround and cover the roof 1. A top cover 18 is arranged between the four inclined portions 51, and the top cover 18 is located at the top of the inclined portions 51, and the top of the four inclined portions 51 is connected to the top cover 18.

[0043] Referring to Figure 1 and Figure 3 , the top cover 18 and the inclined portions 51 are hollow, and the top cover 18 communicates with the inclined portions 51. The inclined portion 51 includes an outer shell 511 and a plurality of inner shells 512, and the plurality of inner shells 512 are arranged at intervals along the inclined direction of the inclined portion 51. A transparent latex bag 9 is connected between the two adjacent inner shells 512, and the latex bag 9 is connected to the inner shell 512. A support 10 for supporting the inner shell 512 is arranged on the roof 1, and the support 10 is fixed vertically on the roof 1. The end of the support 10 away from the roof 1 is connected to the inner wall of the inner shell 512, and the inner shell 512 is stably arranged on the roof 1 through the support 10.

[0044] Referring to Figure 1 and Figure 3The outer wall of the top cover 18 is provided with a water injection hole 8, and rainwater can enter the inclined part 51 through the water injection hole 8 on a rainy day. In order to prevent rainwater from bringing impurities in the air into the inclined part 51, a filter device 11 is arranged on the top cover 18 at the water injection hole 8. In the embodiment of the application, the filter device 11 is a hard plate with filter cloth, which is fixed on the top cover 18 by rivets. The filter device 11 can filter impurities dissolved in the rainwater, effectively preventing impurities from entering the inclined part 51 and affecting the light transmittance of the inclined part 51.

[0045] With reference to Figure 1 and Figure 3 The insertion part 52 is provided in a square shape matched with the water collecting groove 4, and one end of the insertion part 52 is sealingly bonded to the end of the inclined part 51 away from the top cover 18, and the central axis of the insertion part 52 is arranged in line with the central axis of the inclined part 51. A plurality of overflow holes 7 are arranged on the end surface of the insertion part 52 away from the inclined part 51, the overflow holes 7 penetrate through the insertion part 52, and the overflow holes 7 are in communication with the internal cavity of the inclined part 51. A plurality of columns 19 are bonded to the end of the insertion part 52 away from the inclined part 51, so that the insertion part 52 is stably inserted and stored in the water collecting groove 4 through the columns 19.

[0046] The water collecting groove 4 and the transparent cover shell 5 are filled with water by collecting rainwater or artificial water injection, the water in the water collecting groove 4 can achieve liquid sealing for the overflow holes 7, and the water in the inclined part 51 can be stably stored in the inclined part 51. The inclined part 51 with water can reduce the heat exchange between the inside and outside of the inclined part 51, further reducing the temperature change of the environment for the growth of the seedlings 3, effectively avoiding the problem that the seedlings 3 cannot grow normally due to excessive temperature difference.

[0047] On a rainy day, the light is dim, at this time the rainwater enters the inclined part 51 through the water injection hole 8, so that the inclined part 51 is filled with water, and under the action of gravity, the latex bag 9 protrudes towards the seedlings 3. Since the latex bag 9 is transparent, the light outside the shell 511 penetrates through the shell 511 and is converged by the protruding transparent latex bag 9, and then irradiates to the seedlings 3, so that the seedlings 3 in the transparent cover shell 5 can be irradiated by the converged light, and thus the seedlings 3 can still grow rapidly under the condition of dim light on a rainy day.

[0048] On a sunny day, the water in the water collecting groove 4 and the inclined part 51 has been used for watering the seedlings 3, at this time there is no water in the latex bag 9, and the latex bag 9 is contracted to a flat state under the action of its own elasticity; at this time, the latex bag 9 will not converge the light, and the time of the seedlings 3 being irradiated by strong light is also reduced, which slows down the photosynthesis of the seedlings 3, thereby reducing the absorption of water by the seedlings 3, and prolonging the time for the staff to add water.

[0049] To realize the water in the water tank 4 for automatic irrigation seedlings 3, refer to 1 and Figure 1 , the water tank 4 is provided with irrigation assembly 6 for watering seedlings 3, irrigation assembly 6 includes water pipe 61, solenoid valve 62 and water sensor 63, water pipe 61 along the width direction of water tank 4 respectively, and water pipe 61 through the water tank 4 near the planting substrate 2 side of the side wall, so that the water pipe 61 with one end of the sponge layer 22, the other end of the water tank 4 communication. Solenoid valve 62 is fixedly installed on the water pipe 61, solenoid valve 62 can control the water flow in the water pipe 61. Water sensor 63 is inserted into the planting substrate 2, and the water sensor 63 and solenoid valve 62 are electrically connected.

[0050] Water sensor 63 can monitor the water content in the planting substrate 2, when the water content in the planting substrate 2 is lower than the set value, which means that the seedlings 3 need watering at this time, so the water sensor 63 drives the solenoid valve 62 to open, at this time, the water in the water tank 4 flows into the sponge layer 22 through the water pipe 61, and the water content in the sponge layer 22 is basically the same through the siphon phenomenon. The sponge layer 22 can transfer the water in it to the top soil layer 23 and the bottom soil layer 21 respectively, and the bottom soil layer 21 can realize the water storage function, and the top soil layer 23 can be used for water supply for the growth of seedlings 3.

[0051] In the sunny weather for several days, the water in the water tank 4 and the water in the transparent cover 5 are almost used up, in order to avoid the lack of water for the growth of seedlings 3, refer to Figure 3 and Figure 1 , the inner wall of the water tank 4 is embedded with liquid level meter 13, which can monitor the liquid level of the water in the water tank 4. The sidewall of the roof 1 is riveted with alarm 12 through rivet, and the alarm 12 is electrically connected with the liquid level meter 13; when the water in the water tank 4 is lower than the set scale value of the liquid level meter 13, the liquid level meter 13 drives the alarm 12 to alarm, reminding the staff to add water to the water tank 4, to ensure the stable growth of seedlings 3.

[0052] Refer to Figure 3 and Figure 4 , the transparent cover 5 is provided with shielding device 14, the shielding assembly includes rotating shaft 141 rotatingly installed on the top of the transparent cover 5, shade cloth 142 wound on the rotating shaft 141 and driving member 143 for driving the rotating shaft 141 to rotate; the rotating shaft 141 and the shade cloth 142 are provided with four, four rotating shafts 141, four shade cloths 142 correspond to four inclined parts 51 one by one. The outer wall of the top of the four inclined parts 51 is provided with two ear plates 17, and the two ear plates 17 are located on the two sides of the inclined part 51 respectively; the rotating shaft 141 is rotatably installed between the two ear plates 17, and the two ends of the rotating shaft 141 are respectively provided through the ear plates 17.

[0053] Refer toFigure 1 and Figure 4 Figure 1 Figure 5 Figure 1 Figure 5 The end of each reel 141 is sleeved with a bevel gear 16, and the bevel gears 16 at the ends of two adjacent reels 141 are in meshing arrangement. The driving member 143 is specifically a waterproof motor, which is fixedly installed at the top of the transparent cover 5, and the output shaft of the waterproof motor is coaxially fixed to the end of one of the reels 141. The shade cloth 142 is located between the two ear plates 17, and one end of the shade cloth 142 is adhesively connected to the reel 141, and the other end is provided with a counterweight 15; the counterweight 15 is specifically a counterweight rod, which is arranged along the width direction of the shade cloth 142 respectively, and the counterweight rod is adhesively connected to the shade cloth 142.

[0054] The implementation principle of the green building ecological roof structure in the embodiment of the application is as follows: in rainy and cloudy weather, the light is dim, at this time, the rainwater is filtered by the filtering device 11 and enters the inclined part 51 through the water injection hole 8, so that the inclined part 51 is filled with water, and the water tank 4 is also filled with water; at this time, the water in the water tank 4 can realize liquid sealing of the overflow hole 7 and the port of the plug-in part 52. The water in the inclined part 51 can be stably stored in the inclined part 51, the transparent cover 5 with water not only can hinder the air circulation between the inside and outside of the transparent cover 5, but also can reduce the heat exchange between the inside and outside of the inclined part 51, so that the temperature change of the environment for the seedlings 3 to grow is reduced, and the problem that the seedlings 3 cannot grow normally due to excessive temperature difference is effectively avoided.

[0055] Under the action of gravity, the water in the inclined part 51 drives the latex bag 9 to protrude towards the seedlings 3. Since the latex bag 9 is transparent, the light outside the shell 511 penetrates through the shell 511 and is converged by the protruding transparent latex bag 9 and irradiated to the seedlings 3, so that the seedlings 3 in each place in the transparent cover 5 can be irradiated by the converged light, and thus the seedlings 3 can still grow rapidly under the condition of dim light in rainy and cloudy weather.

[0056] In sunny weather, the photosynthesis of the seedlings 3 is strong, and the seedlings 3 need a large amount of water at this time; when the water content in the planting substrate 2 is lower than the set value, it means that the seedlings 3 need to be irrigated at this time; therefore, the water division sensor 63 drives the electromagnetic valve 62 to open, and at this time, the water in the water tank 4 flows into the planting substrate 2 through the water guide pipe 61, thereby completing the automatic water supply to the seedlings 3.

[0057] When the water in the water tank 4 is lower than the scale value set on the liquid level meter 13, the liquid level meter 13 drives the alarm 12 to alarm, and the alarm 12 drives the shielding assembly to shield the transparent cover 5, so as to reduce the photosynthesis of the seedlings 3 and reduce the water absorption of the seedlings 3, thereby prolonging the time for the staff to add water.

[0058] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A green building ecological roof structure comprising a roof covering (1), a planting substrate (2), seedlings (3) and a water collecting tank (4), characterized in that: The water collecting tank (4) is located around the planting substrate (2), the roof (1) is provided with a transparent cover (5), water is collected in the water collecting tank (4), the transparent cover (5) extends into the water collecting tank (4) around, and is liquid sealed by the water in the water collecting tank (4), the seedling (3) is located in the cavity formed by the transparent cover (5), the roof (1) and the water collecting tank (4), and the water collecting tank (4) is provided with an irrigation assembly (6) for watering the seedling (3); The transparent cover (5) comprises a plurality of inclined portions (51) and a plug-in portion (52), the plug-in portion (52) is located at one end of the inclined portion (51), and the plug-in portion (52) is plugged into the water collecting tank (4), a plurality of the inclined portions (51) are enclosed and covered on the roof (1), the inclined portion (51) is provided with a water injection hole (8) at one end away from the plug-in portion (52), the plug-in portion (52) is provided with an overflow hole (7) in communication with the inclined portion (51), and the inclined portion (51) comprises an outer shell (511) and a plurality of inner shells (512); the plurality of inner shells (512) are arranged at intervals, and adjacent two inner shells (512) are connected with a transparent latex bag (9); the roof (1) is provided with a support (10) for supporting the inner shell (512); The irrigation assembly (6) comprises a water guide pipe (61), an electromagnetic valve (62) and a water sensor (63), one end of the water guide pipe (61) is located in the water collecting tank (4), the other end extends to the planting substrate (2), the electromagnetic valve (62) is located on the water guide pipe (61), and the water sensor (63) is located in the planting substrate (2) and electrically connected with the electromagnetic valve (62); The roof (1) is further provided with an alarm (12), the inner wall of the water collecting tank (4) is provided with a liquid level meter (13), and the liquid level meter (13) is electrically connected with the alarm (12); the transparent cover (5) is provided with a shielding device (14), and the shielding device (14) is electrically connected with the alarm (12).

2. A green building eco-roof structure according to claim 1, characterized in that: The inclined portion (51) is provided with a filter device (11) at the water injection hole (8).

3. A green building eco-roof structure according to claim 1, characterized in that: The shielding device comprises a reel (141) rotatably installed on the transparent cover (5), a shade cloth (142) wound on the reel (141) and a driving member (143) for driving the reel (141) to rotate, and the reel (141) and the driving member (143) are located at the top of the transparent cover (5).

4. A green building eco-roof structure according to claim 3, characterized in that: One end of the shade cloth (142) away from the reel (141) is provided with a counterweight (15).

5. A green building eco-roof structure according to claim 3, characterized in that: The inner wall and the outer wall of the transparent cover (5) are both provided with a hydrophobic layer.

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