Energy-saving roof greening water supply and drainage device

By introducing a rainwater harvesting system with a level sensor and a water pump into the rooftop greening drainage system, combined with photovoltaic power generation and filtration components, the problems of incomplete rainwater harvesting and high resource consumption in existing devices are solved, achieving energy-saving and efficient rainwater utilization.

CN223497450UActive Publication Date: 2025-10-31HANGZHOU TIANHUA ARCHITECTURAL DESIGN CO LTD
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Patent Information

Application Number
CN202422952101.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-02
Publication Date
2025-10-31
Estimated Expiration
2034-12-02

AI Technical Summary

Technical Problem

Existing rooftop greening drainage systems are not effective at collecting rainwater and occupy roof space, resulting in significant water consumption.

Method used

Design an energy-saving roof greening water supply and drainage device that includes a roof body, water tank, collection bucket, rainwater collection components and photovoltaic power generation equipment. It uses a liquid level sensor and water pump to collect rainwater and saves energy through photovoltaic power generation. It also improves rainwater collection efficiency by combining filter components and flow pipes.

Benefits of technology

It achieves comprehensive rainwater collection and storage, reduces water consumption, improves rainwater utilization efficiency, and saves energy through photovoltaic power generation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of water supply and drainage, and particularly relates to an energy-saving roof greening water supply and drainage device which comprises a roof body and a collecting barrel, a water outlet is formed in the surface of the roof body, a water tank is fixedly connected to the position, corresponding to the water outlet, of the outer wall of the roof body, and an opening is formed in the position, corresponding to the water outlet, of the surface of the water tank. A rainwater collecting assembly is installed on the surfaces of the collecting barrel and the water tank and comprises a water pump and a liquid level sensor, the water pump is fixedly installed at the top of the collecting barrel, and the input end of the water pump is connected with the water tank through a pipeline; rainwater on the roof main body is discharged into the water tank from the water outlet, and when the liquid level sensor detects that the liquid level in the water tank is higher, the water pump pumps the rainwater in the water tank into the collecting barrel for storage, so that the rainwater can be used for irrigating roof greening, the consumption of water resources is reduced, and the environment is protected. Meanwhile, rainwater on the roof can be collected relatively comprehensively, and the rainwater collecting effect is improved.
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Description

Technical Field

[0001] This utility model relates to the field of water supply and drainage technology, specifically an energy-saving rooftop greening water supply and drainage device. Background Technology

[0002] Rooftop greening can be broadly understood as the planting of trees and flowers on the roofs, terraces, balconies, or large artificial hills of various ancient and modern buildings, structures, city walls, bridges (overpasses), etc. Rooftop greening plays a vital role in increasing urban green space, improving the increasingly deteriorating human living environment; mitigating the impact of high-rise buildings and the replacement of natural land and vegetation by hard paving on many roads; mitigating the harm to humans caused by excessive deforestation, urban heat island effects, and sandstorms resulting from various air pollution sources; expanding green spaces, building garden cities, improving people's living conditions, enhancing their quality of life, and beautifying the urban environment and improving ecological effects. However, watering rooftop green plants requires a large amount of water, making it relatively water-intensive.

[0003] The existing Chinese patent with publication number CN218933291U discloses an energy-saving building roof greening water supply and drainage device, including a support frame, a fixing frame, and a sprinkler head. The upper end of the support frame is provided with a water supply tank. One end of the fixing frame is provided with water supply pipes near both sides. The lower end of the water supply pipe is provided with a drain pipe. A hexagonal connector is installed through one side of the water supply tank. Different shaped pipes are installed through both sides of the hexagonal connector. A rotating plate is provided on one side of the drain pipe. A rotating rod is welded to one side of the rotating plate. An arc-shaped baffle is fixedly installed on one side of the rotating rod. A shaft is provided on one side of the arc-shaped baffle. A semi-circular plate is provided on one side of the drain pipe.

[0004] Regarding the above-mentioned and existing related technologies, the inventor believes that the following defects often exist: the device collects rainwater by setting up a water supply tank, but the water supply tank occupies a limited area of ​​the roof, and the rainwater collection effect is not comprehensive, which needs to be improved; therefore, an energy-saving roof greening water supply and drainage device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the above-mentioned technical problems, this utility model proposes an energy-saving roof greening water supply and drainage device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: An energy-saving roof greening water supply and drainage device of this utility model includes a roof body and a collection bucket. A drain outlet is provided on the surface of the roof body. A water tank is fixedly connected to the outer wall of the roof body corresponding to the drain outlet. An opening is provided on the surface of the water tank corresponding to the drain outlet. A rainwater collection assembly is installed on the surface of the collection bucket and the water tank. The rainwater collection assembly includes a water pump and a level sensor. The water pump is fixedly installed on the top of the collection bucket. The input end of the water pump is connected to the water tank through a pipe. The output end of the water pump is connected to the collection bucket through a pipe. The bottom end of the level sensor is fixedly installed on the inner bottom wall of the water tank. A pipe joint is fixedly connected to the lower side wall of the collection bucket. A valve is installed on the pipe joint, and the pipe joint is connected to the roof greening water pipe.

[0007] Preferably, the top of the water tank is rotatably connected to a tank cover via a shaft, and a handle is fixedly connected to the top of the tank cover.

[0008] Preferably, the rainwater collection assembly further includes a flow pipe, which is convex in shape. The top end of the flow pipe is fixedly installed at the bottom of the water tank, and a drain hole is provided at the bottom of the water tank corresponding to the flow pipe.

[0009] Preferably, a piston block is provided inside the flow pipe, a connecting rod is fixedly connected to the top of the piston block, a fixing frame is slidably connected to the outer wall of the connecting rod, and the outer wall of the fixing frame is fixedly connected to the inner wall of the drain hole.

[0010] Preferably, a float is fixedly connected to the top of the connecting rod. The float is made of a high-buoyancy material, and the bottom end of the flow pipe is connected to a drainage pipe installed on the outside of the building.

[0011] Preferably, a filter assembly is installed inside the drain outlet. The filter assembly includes a filter cylinder, the outer wall of which is fixedly connected to the inner wall of the drain outlet, and the filter cylinder is disposed inside the water tank.

[0012] Preferably, a sliding plate is slidably connected to the inner wall of the filter cylinder, and a threaded screw is threadedly connected to the center of the sliding plate, with one end of the threaded screw being rotatably connected to the inner side wall of the filter cylinder.

[0013] Preferably, a scraper is fixedly connected to the side wall of the slide plate, and the outer wall of the threaded rod penetrates the scraper.

[0014] The advantages of this utility model are:

[0015] 1. In this utility model, rainwater on the roof structure is discharged into a water tank through a drain outlet. When the level sensor detects a high level inside the water tank, the water pump draws the rainwater into a collection bucket for storage. This allows rainwater to be used for irrigating the roof greenery, reducing water consumption. It also allows for more comprehensive collection of rainwater from the roof, improving the collection efficiency. A photovoltaic power generation device is installed on the top of the roof structure. This device powers the water pump and level sensor, thereby saving energy and achieving energy conservation.

[0016] 2. The filter cartridge of this utility model is used to filter impurities in rainwater entering the water tank. The cylindrical filter cartridge has a wider filtration area and a larger capacity to hold impurities, making it less prone to clogging. By rotating the threaded rod, the impurities inside the filter cartridge can be pushed out of the filter cartridge, so that the filter cartridge can be cleaned without disassembling it. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the water tank of this utility model;

[0020] Figure 3 This is a schematic diagram of the rainwater harvesting component of this utility model;

[0021] Figure 4 This is a cross-sectional view of the flow tube of this utility model;

[0022] Figure 5 This is a cross-sectional view of the filter cartridge of this utility model.

[0023] In the diagram: 1. Main roof structure; 2. Collection bucket; 3. Drain outlet; 4. Water tank; 5. Rainwater collection assembly; 51. Water pump; 52. Liquid level sensor; 53. Flow pipe; 54. Piston block; 55. Connecting rod; 56. Fixing frame; 57. Float; 6. Pipe joint; 7. Tank cover; 8. Drain hole; 9. Filter assembly; 91. Filter cartridge; 92. Slide plate; 93. Threaded rod; 94. Scraper. Detailed Implementation

[0024] 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 scope of protection of the present utility model.

[0025] Example 1

[0026] Please see Figure 1-4 As shown, an energy-saving roof greening water supply and drainage device includes a roof body 1 and a collection tank 2. A drain outlet 3 is provided on the surface of the roof body 1. A water tank 4 is fixedly connected to the outer wall of the roof body 1 corresponding to the drain outlet 3. An opening is provided on the surface of the water tank 4 corresponding to the drain outlet 3. A rainwater collection assembly 5 is installed on the surface of the collection tank 2 and the water tank 4. The rainwater collection assembly 5 includes a water pump 51 and a level sensor 52. The water pump 51 is fixedly installed on the top of the collection tank 2. The input end of the water pump 51 is connected to the water tank 4 via a pipe, and the output end of the water pump 51 is connected to the collection tank 2 via a pipe. The bottom end of the level sensor 52 is fixedly installed on the inner bottom wall of the water tank 4. A pipe connector 6 is fixedly connected to the lower side wall of the collection tank 2. A valve is installed on the pipe connector 6, which is connected to the roof greening water pipe. A photovoltaic power generation device is installed on the top of the roof body 1. The photovoltaic power generation device is used to power the water pump 51 and the level sensor 52, thereby saving energy and achieving energy-saving effects.

[0027] Specifically, drain outlet 3 is used to drain rainwater from the main roof 1 to prevent rainwater accumulation. Water tank 4 is used to temporarily store the rainwater discharged from drain outlet 3. Liquid level sensor 52 is used to detect the liquid level inside water tank 4. When the liquid level inside water tank 4 is high, it controls water pump 51 to run. When the liquid level is low, it controls water pump 51 to stop running. Water pump 51 is used to pump the rainwater in water tank 4 into collection bucket 2. The rainwater in collection bucket 2 can be used as irrigation water for roof greening. Pipe joint 6 is used to connect to greening water pipe. Greening water pipe is used to water the roof greening. Valve is used to control the opening and closing of pipe joint 6.

[0028] The top of the water tank 4 is rotatably connected to the tank cover 7 via a shaft, and the top of the tank cover 7 is fixedly connected to a handle.

[0029] Specifically, the user can open the lid 7 by holding the handle to inspect the water tank 4.

[0030] The rainwater harvesting assembly 5 also includes a flow pipe 53, which is convex in shape. The top end of the flow pipe 53 is fixedly installed at the bottom of the water tank 4. A drain hole 8 is provided at the bottom of the water tank 4 corresponding to the flow pipe 53. A piston block 54 is provided inside the flow pipe 53. A connecting rod 55 is fixedly connected to the top of the piston block 54. A fixing bracket 56 is slidably connected to the outer wall of the connecting rod 55. The outer wall of the fixing bracket 56 is fixedly connected to the inner wall of the drain hole 8. A float 57 is fixedly connected to the top of the connecting rod 55. The float 57 is made of a high buoyancy material. The bottom end of the flow pipe 53 is connected to a drainage pipe installed on the outside of the building.

[0031] Specifically, the flow pipe 53 is used to connect the water tank 4 and the drainage pipe installed on the outside of the building. The piston block 54 is used to block the flow pipe 53 to prevent rainwater from being discharged from the water tank 4. When a lot of rainwater accumulates inside the water tank 4 and the pump 51 cannot keep up with the extraction efficiency, the rainwater level in the water tank 4 rises, causing the float 57 to float upward, thereby pulling the piston block 54 upward to open the flow pipe 53, allowing the rainwater to flow down through the drainage pipe and be discharged.

[0032] Example 2

[0033] For comparison with Example 1, please refer to Figure 5 As shown, this utility model provides another embodiment, in which a filter assembly 9 is installed inside the drain outlet 3. The filter assembly 9 includes a filter cylinder 91. The outer wall of the filter cylinder 91 at the opening is fixedly connected to the inner wall of the drain outlet 3. The filter cylinder 91 is disposed inside the water tank 4.

[0034] Specifically, the filter cartridge 91 is used to filter impurities in the rainwater entering the water tank 4. The cylindrical filter cartridge 91 has a wider filtration area and a larger capacity to hold impurities, making it less prone to clogging.

[0035] The inner wall of the filter cylinder 91 is slidably connected to a slide plate 92, and a threaded rod 93 is threadedly connected to the center of the slide plate 92. One end of the threaded rod 93 is rotatably connected to the inner side wall of the filter cylinder 91. A scraper 94 is fixedly connected to the side wall of the slide plate 92, and the outer wall of the threaded rod 93 passes through the scraper 94.

[0036] Specifically, by rotating the threaded rod 93, the slide plate 92 is driven to slide, and the slide plate 92 drives the scraper 94 to move, thereby pushing the impurities in the filter cylinder 91 out of the filter cylinder 91, so that the filter cylinder 91 can be cleaned without disassembling it.

[0037] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Furthermore, appropriate controllers should be selected and electrically connected to the level sensor 52 and the water pump 51 according to the actual situation to meet control requirements. Specific connections and control sequences should refer to the working principle described below, where the electrical connections are completed according to the sequential operation of each electrical component. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without further explanation of electrical control.

[0038] Working principle: When it rains, rainwater on the main body of the roof 1 is filtered through the filter cylinder 91 at the drain outlet 3 and discharged into the water tank 4. When the liquid level sensor 52 detects that the liquid level inside the water tank 4 is high, it transmits a signal to the controller. The controller controls the water pump 51 to run and pump the rainwater in the water tank 4 into the collection bucket 2 for storage. In this way, rainwater can be used to irrigate the roof greening, reducing water consumption. At the same time, it can collect rainwater on the roof relatively comprehensively, improving the rainwater collection effect.

[0039] When collecting rainwater, the flow pipe 53 is blocked by the piston block 54, causing the rainwater to accumulate inside the water tank 4 and be pumped out by the water pump 51. When the rain is heavy and a lot of rainwater accumulates inside the water tank 4, the rainwater inside the water tank 4 will cause the float block 57 to rise. The float block 57 will pull the sealing block 54 to rise by its own buoyancy, thereby opening the flow pipe 53 and allowing the rainwater to be discharged from the drainage pipe installed on the outside of the building.

[0040] Impurities in the rainwater entering the water tank 4 are filtered through the filter cylinder 91. The long cylindrical filter cylinder 91 can store a large amount of impurities, thus eliminating the need for frequent cleaning. When cleaning the filter cylinder 91, the threaded screw rod 93 is rotated to drive the slide plate 92 to slide towards the opening of the filter cylinder 91, so that the scraper 94 pushes out the impurities inside the filter cylinder 91, making it convenient to clean the inside of the filter cylinder 91.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An energy-saving rooftop greening water supply and drainage device, comprising a roof body (1) and a collection tank (2), characterized in that: The surface of the roof body (1) is provided with a drain outlet (3). A water tank (4) is fixedly connected to the outer wall of the roof body (1) at the drain outlet (3). An opening is provided on the surface of the water tank (4) at the drain outlet (3). Rainwater collection components (5) are installed on the surface of the collection bucket (2) and the water tank (4). The rainwater collection components (5) include a water pump (51) and a liquid level sensor (52). The water pump (51) is fixedly installed on the top of the collection bucket (2). The input end of the water pump (51) is connected to the water tank (4) through a pipe. The output end of the water pump (51) is connected to the collection bucket (2) through a pipe. The bottom end of the liquid level sensor (52) is fixedly installed on the inner bottom wall of the water tank (4). A pipe joint (6) is fixedly connected to the lower side wall of the collection bucket (2). A valve is installed on the pipe joint (6). The pipe joint (6) is connected to the greening water pipe of the roof.

2. The energy-saving rooftop greening water supply and drainage device according to claim 1, characterized in that: The top of the water tank (4) is rotatably connected to a tank cover (7) via a shaft, and a handle is fixedly connected to the top of the tank cover (7).

3. The energy-saving rooftop greening water supply and drainage device according to claim 1, characterized in that: The rainwater collection assembly (5) also includes a flow pipe (53), which is convex in shape. The top end of the flow pipe (53) is fixedly installed at the bottom of the water tank (4), and a drain hole (8) is provided at the bottom of the water tank (4) corresponding to the flow pipe (53).

4. The energy-saving rooftop greening water supply and drainage device according to claim 3, characterized in that: A piston block (54) is provided inside the flow pipe (53). A connecting rod (55) is fixedly connected to the top of the piston block (54). A fixing frame (56) is slidably connected to the outer wall of the connecting rod (55). The outer wall of the fixing frame (56) is fixedly connected to the inner wall of the drain hole (8).

5. The energy-saving rooftop greening water supply and drainage device according to claim 4, characterized in that: A float (57) is fixedly connected to the top of the connecting rod (55). The float (57) is made of a high buoyancy material. The bottom end of the flow pipe (53) is connected to a drainage pipe installed on the outside of the building.

6. The energy-saving rooftop greening water supply and drainage device according to claim 1, characterized in that: The drain outlet (3) is equipped with a filter assembly (9), which includes a filter cylinder (91). The outer wall of the filter cylinder (91) is fixedly connected to the inner wall of the drain outlet (3). The filter cylinder (91) is located inside the water tank (4).

7. The energy-saving rooftop greening water supply and drainage device according to claim 6, characterized in that: The filter cylinder (91) has a sliding plate (92) slidably connected to its inner wall. A threaded rod (93) is threadedly connected to the center of the sliding plate (92). One end of the threaded rod (93) is rotatably connected to the inner wall of the filter cylinder (91).

8. The energy-saving rooftop greening water supply and drainage device according to claim 7, characterized in that: The side wall of the slide plate (92) is fixedly connected to a scraper (94), and the outer wall of the threaded rod (93) passes through the scraper (94).

Citation Information

Patent Citations

  • Energy-saving building roof greening water supply and drainage device

    CN218933291U