Roof drainage structure of green building

Abstract

The utility model relates to a roof drainage structure of a green building, and belongs to the technical field of roof drainage, the roof drainage structure comprises a water collecting tank, the water collecting tank is provided with a flow guide assembly, the bottom of the water collecting tank is communicated with a water outlet pipe, the bottom of the water outlet pipe is communicated with a filter tank, the bottom of the filter tank is communicated with a flow guide pipe, and the flow guide pipe is communicated with a water containing tank. A sensor is fixed to an inner cavity of the water containing tank, a water stop plate is fixed to the wall of the inner cavity of the water containing tank, a water pump is fixed to the bottom of the water containing tank, the water pump is communicated with a conveying pipe, and the water containing tank is communicated with a water using pipeline. According to the roof drainage structure of the green building, rapid flow guiding of rainwater is facilitated through the flow guiding assembly and the water outlet pipe, rainwater is purified and filtered through the filter box, water flow is called through the sensor, the use range of water resources is widened through the water using pipeline and the permeation assembly, and the energy-saving effect of the system is improved; the maximum utilization of rainwater resources is realized, and the resource utilization rate is high.

Description

Technical Field

[0001] This utility model relates to the field of roof drainage technology, specifically a roof drainage structure for green buildings. Background Technology

[0002] Green buildings, throughout their entire life cycle, conserve resources, protect the environment, reduce pollution, and provide people with healthy, suitable, and efficient living spaces, maximizing the harmonious coexistence of humans and nature in high-quality architecture. Common roof drainage structures generally consist of a diversion pipe that collects rainwater and a drainage pipe that discharges the collected rainwater.

[0003] For example, a Chinese patent (publication number: CN220267048U) discloses a roof drainage structure, which relates to the field of drainage. The key technical points of the solution are: it includes a guide pipe and a drain pipe. A connecting strip is detachably connected to the inner bottom surface of the guide pipe. The length direction of the connecting strip is the same as the length direction of the guide pipe. A partition is fixedly connected to the connecting strip at intervals. This utility model uses the partition to block debris from moving along the water flow. The inclined partition improves the efficiency of the partition in blocking debris and prevents debris from entering the drain pipe. When it is necessary to clean the debris in the guide pipe, it is only necessary to remove the connecting strip from the guide pipe. The connecting strip and the partition are brought out together, making the guide pipe more unobstructed and facilitating the cleaning and maintenance of the guide pipe. The connecting strip is fixed by a claw, which realizes the quick installation and removal of the connecting strip. The pull ring provides a force point when removing the connecting strip.

[0004] This patent achieves pipe cleaning by disassembling the diversion pipe, which is conducive to water discharge. However, although this patent can meet basic drainage needs, there is still room for improvement in terms of energy conservation, emission reduction, and resource utilization. Therefore, a green building roof drainage structure is proposed to solve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a roof drainage structure for green buildings, which has the advantage of high rainwater recycling rate and solves the problem of resource waste.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a roof drainage structure for a green building, comprising a water collection trough, a flow guiding component at the bottom of the inner cavity of the water collection trough, a water outlet pipe connected to the bottom of the water collection trough, a filter box connected to the bottom of the water outlet pipe, a flow guiding pipe connected to the bottom of the filter box, a water storage tank connected to the side of the flow guiding pipe away from the filter box, a sensor fixed to the top of the inner cavity of the water storage tank, a water baffle plate fixed between the inner walls of the upper and lower sides of the water storage tank, a water pump fixed to the bottom of the water storage tank, delivery pipes connected to the water storage tank on the upper and lower sides of the water pump, water supply pipes connected to the left and right sides of the water storage tank, and a permeation component at the bottom of the water storage tank, with an insertion interface fixed on the permeation component;

[0007] The flow guiding assembly consists of a fixing rod, a receiving plate, a hinge plate, and a buoyancy plate. The bottom of the fixing rod and the receiving plate are fixed to the bottom wall of the inner cavity of the water collection tank. The hinge plate is hinged to the top of the fixing rod. The inner side of the buoyancy plate is slidably connected to the receiving plate. The right side of the hinge plate is hinged to the buoyancy plate.

[0008] By adopting this technical solution, rainwater is accelerated to flow into the filter box through the diversion component and the outlet pipe. Combined with the filtration effect of the filter box, the rainwater is filtered. With the help of sensors to regulate the water pump and delivery pipe, it is conducive to improving the intelligence of the overall use. By setting up water pipelines and infiltration components, the utilization rate of rainwater is further improved. The overall structure is simple and the use effect is good.

[0009] Furthermore, the bottom of the water collection tank is fixed with guide blocks that are fixed to the inner walls of the left and right sides of the tank, and the top of the buoyancy plate has an opening that extends through to the bottom. The buoyancy plate has a hollow structure.

[0010] By adopting this technical solution, the flow guiding components can operate stably, which is conducive to achieving rapid drainage.

[0011] Furthermore, the water outlet pipe is funnel-shaped, the water supply line is a flexible hose, a sprayer is fixed on the side of the water supply line away from the water tank, the sprayer is compatible with the connector, and the water pump is a solar-powered energy-saving water pump.

[0012] By adopting this technical solution, the scope of rainwater utilization can be expanded, while the overall resource utilization rate of the structure can be improved.

[0013] Furthermore, the filter box includes a box body, a load-bearing plate, a filter plate, a bonding plate, a snap-fit ​​plate, and a limiting component. The upper and lower sides of the filter box are respectively connected to the water outlet pipe and the guide pipe. The load-bearing plate is fixed to the inner wall of the box body on the side away from the water tank. The filter plate is movably connected to the side of the box body near the water tank. The bonding plate is fixed to the side of the filter plate near the water tank. The snap-fit ​​plate is fixed to the side of the bonding plate away from the box body. The limiting component is located above the snap-fit ​​plate and is fixed to the box body.

[0014] By adopting this technical solution, rainwater can be filtered, and the overall filter box is stable in use, which in turn contributes to the overall structural stability.

[0015] Furthermore, the top of the snap-fit ​​plate has a through-hole extending to its bottom, the bottom of the filter plate is attached to the load-bearing plate, and there are three filter plates inside the box. The interior of the three filter plates is filled with quartz sand, anthracite and activated carbon from top to bottom.

[0016] By adopting this technical solution and adjusting the material of the filter plate, the filtration effect of rainwater can be improved, which in turn improves the filtration effect of the filter box.

[0017] Furthermore, the limiting assembly includes a housing, a spring, a displacement block, an adjusting plate, a displacement column, and a movable column. The housing is fixed to the outside of the box body. The upper and lower sides of the spring are fixed to the housing and the displacement block, respectively. The adjusting plate is hinged to the top of the housing. The bottom of the adjusting plate is fixed to the displacement column. The displacement column is movably connected to the displacement block. The movable column is movably connected to the bottom of the housing. The top of the movable column is fixed to the displacement block.

[0018] By adopting this technical solution, it is easier to disassemble and assemble the filter plate, easier to clean the filter plate, and thus easier to ensure the stable operation of the overall structure.

[0019] Furthermore, a sliding channel is provided on the back of the displacement block, and the displacement column is located in the sliding channel. The displacement column is slidably connected to the displacement block through the sliding channel.

[0020] By adopting this technical solution, the stability of the displacement block sliding is improved, which in turn facilitates the realization of the snap-fit ​​function, thereby improving the stability of the filter plate.

[0021] Furthermore, the permeation assembly includes a water-passing plate, a permeable plate, a water-containing plate, and a water inlet. The water-passing plate is connected to the bottom of the water-containing tank. Both the left and right sides of the permeable plate are fixed to the water-passing plate. The bottom of the water-passing plate is connected to the water-containing plate. The bottom of the permeable plate is fixed to the water-containing plate. The water inlet is connected to the top of the water-passing plate.

[0022] By adopting this technical solution, rainwater can be infiltrated and treated, thereby increasing the scope of rainwater use and improving the utilization rate of rainwater resources.

[0023] Furthermore, the interior of both the water-passing plate and the water-receiving plate is hollow, and water-permeable holes are provided on the water-passing plate, the water-permeable plate, and the water-receiving plate.

[0024] By adopting this technical solution, rainwater infiltration is facilitated, thereby ensuring the stable operation of the infiltration components and promoting the stable realization of rainwater infiltration.

[0025] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0026] The roof drainage structure of this green building, through the coordinated arrangement of flow guiding components and outlet pipes, facilitates the rapid flow of rainwater. The rainwater is purified and filtered through the filter box. After the rainwater is collected in the water tank, the water flow can be controlled by sensors. The water pipeline and infiltration components further increase the scope of water resource utilization and improve the energy-saving effect of the system, which helps to maximize the utilization of rainwater resources. The overall structure is easy to use and has a high resource utilization rate. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the flow guiding component structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the filter box structure of this utility model;

[0030] Figure 4 This is a perspective view of the limiting component of this utility model;

[0031] Figure 5 This is a three-dimensional view of the permeation component of this utility model.

[0032] In the diagram: 1. Water collection tank; 2. Flow guiding assembly; 201. Fixing rod; 202. Support plate; 203. Hinge plate; 204. Buoyancy plate; 3. Water outlet pipe; 4. Filter box; 401. Box body; 402. Load-bearing plate; 403. Filter plate; 404. Adhesive plate; 405. Snap-fit ​​plate; 406. Limiting assembly; 4061. Outer shell; 4062. Spring; 4063. Displacement block; 4064. Adjustment plate; 4065. Displacement column; 4066. Movable column; 5. Flow guiding pipe; 6. Water tank; 7. Sensor; 8. Water baffle plate; 9. Water pump; 10. Delivery pipe; 11. Water supply pipeline; 12. Infiltration assembly; 1201. Water flow plate; 1202. Permeable plate; 1203. Water holding plate; 1204. Water inlet; 13. Connecting interface. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1 This embodiment of a green building roof drainage structure includes a water collection trough 1. The bottom of the inner cavity of the water collection trough 1 is provided with a flow guiding component 2. The bottom of the inner cavity of the water collection trough 1 is fixed with flow guiding blocks fixed to the inner walls on the left and right sides. The setting of the flow guiding blocks is conducive to improving the efficiency of rainwater transport, thereby improving the drainage effect. The bottom of the water collection trough 1 is connected to a water outlet pipe 3. The water outlet pipe 3 is funnel-shaped. The funnel shape is conducive to further accelerating the transmission efficiency of rainwater. The bottom of the water outlet pipe 3 is connected to a filter box 4. The bottom of the filter box 4 is connected to a flow guiding pipe 5. The side of the flow guiding pipe 5 away from the filter box 4 is connected to a water tank 6.

[0035] It should be noted that the water flow in the water collection tank 1 is quickly guided into the filter box 4 for filtration through the flow guide component 2 and the water outlet pipe 3, and finally flows into the water storage tank 6 for storage. This is conducive to the stable realization of the drainage function, and at the same time, the water flow is stored and used, which further improves the utilization rate of resources.

[0036] It should also be noted that a sensor 7 is fixed at the top of the inner cavity of the water tank 6. The sensor 7 facilitates the regulation of the delivery pipe 10, thereby improving the intelligence of the overall structure. A water baffle 8 is fixed between the inner walls of the upper and lower sides of the water tank 6. The water baffle 8 divides the water tank 6 into two areas, which facilitates the rational allocation of water resources and improves the overall structure's performance. A water pump 9 is fixed at the bottom of the water tank 6. The water pump 9 is a solar-powered energy-saving water pump. The solar-powered water pump 9 further improves the structure's resource utilization rate, thereby improving the overall energy-saving effect of the structure. The upper and lower sides of the water pump 9 are connected to the delivery pipe 10, which is connected to the water tank 6.

[0037] Understandably, regulating the water pump 9 and the delivery pipe 10 through the sensor 7 is beneficial for the rational use of water resources, improves the intelligence of the overall structure, and enhances the performance.

[0038] It is also understandable that water pipes 11 are connected to both the left and right sides of the water tank 6. The bottom of the water tank 6 is equipped with an infiltration component 12, and an interface 13 is fixed on the infiltration component 12. The water pipe 11 is a flexible hose. The flexible hose facilitates the adjustment of the water pipe 11, which in turn facilitates the stable use of the overall structure. A sprayer is fixed on the side of the water pipe 11 away from the water tank 6. The sprayer is compatible with the interface 13. The sprayer improves the performance of the water pipe 11 and enhances the practicality of the overall structure.

[0039] It should be noted that the rapid drainage of water through the flow guide component 2 and the outlet pipe 3 improves the drainage effect. The water is purified by passing the water through the filter box 4. The water pump 9 and the delivery pipe 10 are controlled by the sensor 7, which helps to improve the intelligence of the overall structure. The use of water pipes 11 and infiltration components 12 further increases the scope of water use, which in turn helps to improve the water resource utilization rate.

[0040] Please see Figure 2 To accelerate the drainage rate, the flow guiding component 2 in this embodiment includes a fixed rod 201, a receiving plate 202, a hinge plate 203, and a buoyancy plate 204. The top of the buoyancy plate 204 has an opening that extends to its bottom. The buoyancy plate 204 has a hollow structure, which facilitates the up-and-down movement of the buoyancy plate 204 by changes in water level, thereby facilitating the adjustment of the hinge plate 203. The bottoms of the fixed rod 201 and the receiving plate 202 are fixed to the bottom wall of the inner cavity of the water collection tank 1. The hinge plate 203 is hinged to the top of the fixed rod 201. The inner side of the buoyancy plate 204 is slidably connected to the receiving plate 202. The right side of the hinge plate 203 is hinged to the buoyancy plate 204.

[0041] It should also be noted that in this embodiment, the rise in water level causes the buoyancy plate 204 to float, which in turn causes the hinge plate 203 to adjust its angle around the fixed rod 201, thereby increasing the slope and improving the water flow transmission efficiency, which is beneficial to improving the drainage effect.

[0042] Please see Figures 3 to 4 In order to achieve convenient water purification, the filter box 4 in this embodiment includes a box body 401, a load-bearing plate 402, a filter plate 403, a bonding plate 404, a snap-fit ​​plate 405, and a limiting component 406. The upper and lower sides of the filter box 4 are connected to the water outlet pipe 3 and the guide pipe 5, respectively. The load-bearing plate 402 is fixed to the inner wall of the box body 401 away from the water tank 6. The load-bearing plate 402 provides support for the placement of the filter plate 403, which is beneficial to the overall stability of the filter box 4. The filter plate 403 is movably connected to the side of the box body 401 near the water tank 6.

[0043] It is easy to see that the support provided by the load-bearing plate 402 and the outer wall of the box 401 for the filter plate 403 is beneficial to the overall stability of the filter box 4, and thus to the stable realization of the filtration effect.

[0044] In simple terms, the housing 401 contains three filter plates 403. The interior of the three filter plates 403 is filled with quartz sand, anthracite, and activated carbon from top to bottom. This combination of materials helps to purify the water flow, thus improving the use of water resources. The bonding plate 404 is fixed to the side of the filter plate 403 closest to the water tank 6. The bonding plate 404 prevents water leakage and improves the stability of the filter housing 4. The snap-fit ​​plate 405 is fixed to the side of the bonding plate 404 away from the housing 401. The limiting component 406 is located above the snap-fit ​​plate 405. The top of the snap-fit ​​plate 405 has a through-hole extending to its bottom. The bottom of the filter plate 403 is attached to the load-bearing plate 402. The limiting component 406 is fixed to the housing 401.

[0045] It can be seen that the setting of the bonding plate 404 is beneficial to the stability of the water flow in the box. At the same time, the cooperation between the limiting component 406 and the snap-fit ​​plate 405 is beneficial to further improve the stability of the filter box 4.

[0046] Additionally, the limiting component 406 includes a housing 4061, a spring 4062, a displacement block 4063, an adjusting plate 4064, a displacement column 4065, and a movable column 4066. The housing 4061 is fixed to the outside of the housing 401. The upper and lower sides of the spring 4062 are fixed to the housing 4061 and the displacement block 4063, respectively. A sliding channel is provided on the back of the displacement block 4063. This sliding channel helps stabilize the displacement of the displacement column 4065, thereby improving the overall stability of the component. The adjusting plate 4064 is fixed to the top of the housing 4061. The hinged joint facilitates the swinging of the adjusting plate 4064, which in turn facilitates the movable displacement of the displacement column 4065, thus enabling the functional realization of the component. The bottom of the adjusting plate 4064 is fixed to the displacement column 4065, and the displacement column 4065 is movably connected to the displacement block 4063. The displacement column 4065 is located within the sliding channel and is slidably connected to the displacement block 4063 through the sliding channel. The movable column 4066 is movably connected to the bottom of the outer shell 4061, and the top of the movable column 4066 is fixed to the displacement block 4063.

[0047] In this embodiment, the spring 4062 provides support for the component. The sliding connection between the displacement column 4065 and the displacement block 4063 facilitates the sliding of the displacement column 4065, which in turn facilitates the downward movement of the movable column 4066, thereby achieving the snap-fit ​​effect with the snap-fit ​​plate 405. This limits the position of the filter plate 403, making it easy to install and remove, and improving the usability of the filter box 4. At the same time, the arrangement of three filter plates 403 enables layered filtration of the water flow, improving the purification effect of the water flow and facilitating the realization of the overall convenient purification function.

[0048] Please see Figure 5 To promote the natural infiltration of rainwater, the infiltration component 12 in this embodiment includes a water-passing plate 1201, a permeable plate 1202, a water-containing plate 1203, and an inlet 1204. The water-passing plate 1201 is connected to the bottom of the water-containing tank 6. The left and right sides of the permeable plate 1202 are fixed to the water-passing plate 1201. The bottom of the water-passing plate 1201 is connected to the water-containing plate 1203. The bottom of the permeable plate 1202 is fixed to the water-containing plate 1203. The inlet 1204 is connected to the top of the water-passing plate 1201.

[0049] Moreover, the interconnected design facilitates the flow of rainwater within the infiltration component 12, thereby promoting the infiltration of rainwater into the outside world after passing through the infiltration component 12.

[0050] The interior of the water-passing plate 1201 and the water-receiving plate 1203 is hollow. Water-permeable holes are provided on the water-passing plate 1201, the water-permeable plate 1202 and the water-receiving plate 1203. The setting of water-permeable holes is conducive to the discharge of rainwater, which in turn facilitates the function of rainwater infiltration to the outside.

[0051] In this embodiment, rainwater is introduced through the inlet 1204, retained through the water-passing plate 1201 and the water-retaining plate 1203, and dispersed and discharged through the permeable plate 1202 and the permeable holes. This facilitates the realization of rainwater infiltration and maximizes the utilization of rainwater resources.

[0052] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply provided by the storage battery is also common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0053] The working principle of the above embodiments is as follows:

[0054] A water collection trough 1 is installed around the roof. When it rains, the water level in the trough 1 rises, causing the buoyancy plate 204 to float upwards. Combined with the guide block, this quickly transfers the rainwater to the outlet pipe 3. The water then passes through the filter plate 403 for filtration before being transferred to the water tank 6. The water level is monitored by a sensor 7. The water tank 6 is divided into two chambers by a water-separating plate 8. The water flow through the delivery pipe 10 is controlled by the sensor 7, and the water pump 9 quickly discharges the water. The water in the water tank 6 is then quickly used via the water pipe 11. When it is necessary to allow water to seep into the outside environment, the water pipe 11 is connected... Water is introduced into the water-passing plate 1201 and the water-receiving plate 1203 through the insertion interface 13, and the water permeates out through the permeable plate 1202, promoting the natural infiltration of rainwater. When it is necessary to lock the filter plate 403, the movable column 4066 can be pressed down, the displacement block 4063 moves upward, and then the spring 4062 pushes downward through deformation. At the same time, the angle of the adjusting plate 4064 is adjusted, so that the displacement column 4065 slides upward, thereby causing the movable column 4066 to push downward and lock the locking plate 405. This facilitates the disassembly and installation of the filter plate 403. The overall device has a simple structure, is easy to use, has a good rainwater treatment effect, and a high water resource utilization rate.

Claims

1. A roof drainage structure of a green building comprising a water collecting gutter (1), characterized in that: The bottom of the inner cavity of the water collecting tank (1) is provided with a flow guide assembly (2), the bottom of the water collecting tank (1) is communicated with a water outlet pipe (3), the bottom of the water outlet pipe (3) is communicated with a filter box (4), the bottom of the filter box (4) is communicated with a flow guide pipe (5), one side of the flow guide pipe (5) away from the filter box (4) is communicated with a water storage tank (6), the top of the inner cavity of the water storage tank (6) is fixedly provided with a sensor (7), the inner cavity walls on the upper and lower sides of the water storage tank (6) are fixedly provided with a waterproof plate (8), the bottom of the water storage tank (6) is fixedly provided with a water pump (9), the upper and lower sides of the water pump (9) are communicated with a conveying pipe (10) communicated with the water storage tank (6), the left and right sides of the water storage tank (6) are both communicated with a water using pipeline (11), the bottom of the water storage tank (6) is provided with a permeation assembly (12), and the permeation assembly (12) is fixedly provided with a plug-in port (13). The flow guide assembly (2) is fixedly provided with a fixed rod (201), a receiving plate (202), a hinged plate (203) and a buoyancy plate (204), the bottom of the fixed rod (201) and the receiving plate (202) is fixedly connected with the inner cavity bottom wall of the water collecting tank (1), the top of the fixed rod (201) is hingedly connected with the hinged plate (203), and the inner side of the buoyancy plate (204) is slidingly connected with the receiving plate (202).

2. The green building roof drainage structure according to claim 1, characterized in that: The bottom of the inner cavity of the water collecting tank (1) is fixedly provided with a flow guide block fixedly connected with the inner cavity walls on the left and right sides thereof, the top of the buoyancy plate (204) is provided with a movable opening penetrating through the bottom thereof, and the buoyancy plate (204) is a hollow structure.

3. The green building roof drainage structure according to claim 1, characterized in that: The water outlet pipe (3) is funnel-shaped, the water using pipeline (11) is a movable flexible pipe, one side of the water using pipeline (11) away from the water storage tank (6) is fixedly provided with a sprayer, the sprayer is matched with the plug-in port (13), and the water pump (9) is a solar energy driven energy-saving water pump.

4. The green building roof drainage structure according to claim 1, characterized in that: The filter box (4) comprises a box body (401), a bearing plate (402), a filter plate (403), a clamping plate (404), a clamping plate (405) and a limiting assembly (406), the upper and lower sides of the filter box (4) are respectively communicated with the water outlet pipe (3) and the flow guide pipe (5), the bearing plate (402) is fixedly connected with the inner cavity wall of the box body (401) away from the water storage tank (6), the filter plate (403) is movably connected with the side of the box body (401) close to the water storage tank (6), the clamping plate (404) is fixedly connected with the side of the filter plate (403) close to the water storage tank (6), the clamping plate (405) is fixedly connected with the side of the clamping plate (404) away from the box body (401), the limiting assembly (406) is located above the clamping plate (405), and the limiting assembly (406) is fixedly connected with the box body (401).

5. The green building roof drainage structure according to claim 4, characterized in that: The top of the snap-fit ​​plate (405) has a through-hole extending to its bottom. The bottom of the filter plate (403) is attached to the load-bearing plate (402). There are three filter plates (403) in the box (401). The interior of the three filter plates (403) is filled with quartz sand, anthracite and activated carbon from top to bottom.

6. The green building roof drainage structure according to claim 4, characterized in that: The limiting component (406) includes a housing (4061), a spring (4062), a displacement block (4063), an adjusting plate (4064), a displacement column (4065), and a movable column (4066). The housing (4061) is fixed to the outside of the box (401). The upper and lower sides of the spring (4062) are fixed to the housing (4061) and the displacement block (4063) respectively. The adjusting plate (4064) is hinged to the top of the housing (4061). The bottom of the adjusting plate (4064) is fixed to the displacement column (4065). The displacement column (4065) is movably connected to the displacement block (4063). The movable column (4066) is movably connected to the bottom of the housing (4061). The top of the movable column (4066) is fixed to the displacement block (4063).

7. The green building roof drainage structure according to claim 6, characterized in that: The displacement block (4063) has a sliding channel on its back side, and the displacement column (4065) is located in the sliding channel. The displacement column (4065) is slidably connected to the displacement block (4063) through the sliding channel.

8. The green building roof drainage structure according to claim 1, characterized in that: The permeation assembly (12) includes a water-passing plate (1201), a water-permeable plate (1202), a water-containing plate (1203), and a water inlet (1204). The water-passing plate (1201) is connected to the bottom of the water-containing tank (6). The left and right sides of the water-permeable plate (1202) are fixed to the water-passing plate (1201). The bottom of the water-passing plate (1201) is connected to the water-containing plate (1203). The bottom of the water-permeable plate (1202) is fixed to the water-containing plate (1203). The water inlet (1204) is connected to the top of the water-passing plate (1201).

9. The green building roof drainage structure according to claim 8, characterized in that: The interior of the water-passing plate (1201) and the water-receiving plate (1203) is hollow, and water-permeable holes are provided on the water-passing plate (1201), the water-permeable plate (1202) and the water-receiving plate (1203).

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