Greening outer wall structure capable of collecting rainwater
By incorporating planting troughs and multi-layered filter materials into the green exterior wall structure, the complexity and high cost of rainwater harvesting systems are solved, achieving efficient rainwater collection and filtration, enhancing the building's aesthetics, and reducing resource consumption.
Patent Information
- Application Number
- CN202422878026.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-10-30
- Filing Date
- 2024-11-25
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Existing rainwater harvesting systems are complex, costly to operate, and difficult to maintain. Furthermore, the rainwater treatment process is complex, resulting in substantial economic investment.
Design a green exterior wall structure that uses planting troughs to collect rainwater and filters the rainwater through multiple layers of filter materials within the planting troughs, including porous expanded clay, coarse gravel, fine gravel, and activated carbon layers. The filtered rainwater is collected in a rainwater collector at the bottom of the planting trough and then piped into a rainwater collection pool inside the building.
It achieves efficient rainwater collection and filtration, beautifies building facades, reduces resource consumption, lowers carbon emissions, simplifies the rainwater treatment process, and reduces operating costs.
Smart Images
Figure CN223621087U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of residential building technology, and in particular to a green exterior wall structure for collecting rainwater. Background Technology
[0002] With the advancement of urbanization, land resources are becoming increasingly scarce, turning into a sought-after commodity in society. Therefore, the conflict between construction land and green space is becoming increasingly apparent, forcing us to rethink the relationship between humans and nature, and between buildings and the natural environment. Given the limited urban land and the relatively high cost of greening, in order to maximize the use of urban space, people have begun to implement vertical greening on building facades, walls, bridges, balconies, and window sills. This practice is an important and effective means of improving the urban ecological environment and enriching the urban green landscape. The development of vertical greening can enhance the spatial structure and artistic effect of urban green spaces, help further increase the amount of green space in the city, mitigate the heat island effect, absorb dust, reduce noise and harmful gases, thereby creating and improving the urban ecological environment. In addition, vertical greening can also provide thermal insulation, save energy, and retain rainwater, relieving pressure on urban drainage systems.
[0003] Rainwater harvesting and reuse can significantly reduce water consumption and surface runoff during rainfall, thereby alleviating peak rainfall and pressure on municipal drainage systems. However, the main challenges currently facing rainwater harvesting systems include the complexity of the harvesting equipment, high operating costs, difficult maintenance, and the complexity of the rainwater treatment process. Treating rainwater to a usable quality and storing it requires substantial economic investment. Utility Model Content
[0004] To address the technical problems existing in the prior art, the purpose of this utility model is to provide a green exterior wall structure that collects rainwater. It utilizes planting troughs to collect rainwater, and while irrigating plants, the rainwater is filtered through multiple layers of filter material within the planting troughs.
[0005] To achieve the above-mentioned utility model objectives, this utility model provides a green exterior wall structure for collecting rainwater, comprising: a structural keel set on the outside of the building wall, a planting trough for greening and filtering rainwater, a rainwater collector, and water pipes;
[0006] The structural keel includes a support frame with a right-angled triangular cross-section, a connecting steel pipe for connecting the building wall and the structural keel, and a connecting frame;
[0007] The surface corresponding to one right-angled side of the cross-section of the support frame is fixed to the building wall, and the planting trough is set on the surface corresponding to the other right-angled side of the cross-section of the support frame;
[0008] The rainwater collector is located below the planting trough, with one end of the water pipe connected to the bottom of the rainwater collector and the other end connected to the rainwater collection pool inside the building.
[0009] According to one technical solution of this utility model, the green exterior wall structure further includes an exterior wall finish for decorating and covering the structural keel, the exterior wall finish being fixed to the structural keel.
[0010] According to one technical solution of this utility model, the planting trough includes a porous ceramsite layer for planting plants and a coarse gravel layer, a fine gravel layer, and an activated carbon layer arranged sequentially for filtering rainwater.
[0011] The cross-sections of the coarse gravel layer, the fine gravel layer, and the activated carbon layer are inverted trapezoidal shapes that decrease in size sequentially downwards. The water pipe is connected to the bottom of a rainwater collector located below the activated carbon layer on the bottom surface of the trapezoidal shape.
[0012] According to one technical solution of this utility model, there is a water storage cavity between the porous ceramsite layer and the top of the planting trough for water storage and wind protection.
[0013] According to one technical solution of this utility model, a lamp is provided on the exterior wall surface, and the lamp is located on the outside of the structural keel near the top of the planting trough.
[0014] According to one technical solution of this utility model, an isolation layer and / or mulch film for isolating different materials is provided between the porous ceramsite layer, coarse gravel layer, fine gravel layer and activated carbon layer.
[0015] According to one technical solution of this utility model, the structural keel is provided with an inclined surface around the top of the planting trough for guiding the flow of rainwater.
[0016] According to one technical solution of this utility model, the inlet of the rainwater collector is connected to the bottom of the planting trough, and the bottom of the planting trough is a ceramic layer and / or a fiber cloth layer.
[0017] According to one technical solution of this utility model, the porous ceramsite layer on the planting trough is provided with a fixing net layer to prevent plants from being blown away.
[0018] According to one technical solution of this utility model, the structural keel below the planting trough is a vertical structure for diverting rainwater.
[0019] Compared with the prior art, this utility model has the following advantages:
[0020] Integrating with the building's exterior design, outdoor plant troughs are installed at window sills, allowing for the cultivation of greenery and enhancing the building's appearance. Furthermore, rainwater is collected within the troughs. While irrigating the plants, the rainwater is filtered through multiple layers of filter material within the troughs. A collector at the bottom of the troughs collects the filtered and purified rainwater, which is then piped into a rainwater collection tank inside the building for use in tasks such as flushing toilets and cleaning. Attached Figure Description
[0021] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the embodiments 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.
[0022] Figure 1 This is a schematic diagram illustrating the structure of the green exterior wall that collects rainwater according to this utility model.
[0023] in, Figure 1 The correspondence between the reference numerals and component names in the attached drawings is as follows:
[0024] 1-Aluminum alloy window system; 2-Lighting fixture; 3-Support frame; 4-Thick aluminum plate; 5-Steel plate; 6-Thick fluorocarbon coated aluminum single panel; 7-Connecting frame; 8-Connecting steel pipe; 9-Angle steel; 10-Insulating rock wool. Detailed Implementation
[0025] The description of the embodiments in this specification should be taken in conjunction with the accompanying drawings, which should form part of the complete specification. In the drawings, the shape or thickness of the embodiments may be exaggerated and may be indicated in a simplified or convenient manner. Furthermore, parts of the various structures in the drawings will be described separately; it is worth noting that elements not shown in the figures or not described in words are in a form known to those skilled in the art.
[0026] The description of the embodiments herein, including any references to direction and orientation, is for ease of description only and should not be construed as limiting the scope of protection of this utility model. The following description of preferred embodiments involves combinations of features, which may exist independently or in combination; this utility model is not particularly limited to the preferred embodiments. The scope of this utility model is defined by the claims.
[0027] like Figure 1 As shown, this utility model proposes a green exterior wall structure for collecting rainwater, comprising:
[0028] Structural keel installed on the outside of building walls, planting troughs for greening and filtering rainwater, rainwater collectors, water pipes, and building exterior walls;
[0029] The structural keel includes a support frame 3 with a right-angled triangular cross-section, a connecting steel pipe 8 for connecting the building exterior wall and the structural keel, and a connecting frame 7;
[0030] The surface corresponding to one right-angled side of the cross section of the support frame 3 is fixed to the building wall, and the planting trough is set on the surface corresponding to the other right-angled side of the cross section of the support frame 3.
[0031] The rainwater collector is installed below the planting trough, with one end of the water pipe connected to the bottom of the rainwater collector and the other end connected to the rainwater collection tank inside the building.
[0032] The structural frame is fixed to the building's exterior wall, located between the upper and lower aluminum alloy window systems 1. Outdoor plant troughs are installed at the window sills, where greenery can be grown, beautifying the building's facade while providing enjoyment for residents inside. Furthermore, rainwater is collected using the plant troughs. While irrigating the plants, the rainwater is filtered through multiple layers of filter material within the troughs. A collector at the bottom of the troughs collects the filtered and purified rainwater, which is then piped into a rainwater collection tank inside the building for use in flushing toilets, cleaning, and other purposes.
[0033] It is understandable that the planting trough is located above the structural keel, or is formed by the structural keel through a connecting structure.
[0034] The green exterior wall structure also includes exterior wall cladding used to decorate and cover the structural keel, and the exterior wall cladding is fixed to the structural keel. For example... Figure 1 As shown, the exterior wall cladding includes a steel plate 5 and a thick fluorocarbon-coated aluminum single panel 6 that is directly in contact with the external environment and covers the steel plate 5. This can prevent the structural keel from being exposed and improve the overall aesthetics.
[0035] The function of the connecting frame 7 is to connect the structural keel to the building wall. The specific connection method is as follows: after the connecting frame 7 is fixed to the structural keel, it is connected to the building wall through the connecting steel pipe. This setting is conducive to the subsequent maintenance stage, which allows the structural keel and planting trough to be completely removed and maintained.
[0036] Alternatively, the connecting frame 7 can also serve as part of the structural keel, that is, the connecting frame 7 is the part corresponding to one side of the support frame with a right-angled triangular cross-section. The size of the connecting frame 7 is larger than the side length of the support frame. The extended part helps to improve the stability of the connection with the building wall, avoids problems such as bending and breakage of the connecting steel pipe due to excessive local stress, and improves safety and reliability.
[0037] Light fixture 2 is installed on the exterior wall cladding. The light fixture 2 is located on the exterior of the structural keel near the top of the planting trough.
[0038] The structural frame has a sloping surface around the top of the planting trough to guide the flow of rainwater.
[0039] The structural keel beneath the planting trough is a vertical structure used to drain rainwater.
[0040] like Figure 1 As shown, the planting trough and aluminum alloy window system 1, as well as the planting trough and light fixture 2, are inclined surfaces with a certain degree of slope. The slope can guide rainwater to flow into the planting trough. The light fixture 2 is located in a cavity structure to prevent rainwater and strong winds from damaging the light fixture 2. The main structural keel is divided into Figure 1 The supporting frame 3 is made of 50x50x5 galvanized square steel pipe, the connecting frame 7 is made of 60x60x5 galvanized square steel pipe, and the connecting steel pipe 8 connecting the building's exterior wall and structural keel is also made of 60x60x5 galvanized square steel pipe. The galvanized square steel pipes are covered with metal plates of different effects, such as thick aluminum plates 4 forming the planting trough, steel plates 5 serving as the base for the exterior wall cladding, and thick fluorocarbon-coated aluminum single panels 6 covering the steel plates 5 that are in direct contact with the external environment. The lower end of the structural keel is equipped with features to strengthen the structure. Angle steel 9, the exterior wall facade is covered with thermal insulation rock wool 10, the exterior wall finish can reduce the impact of the external environment on thermal insulation rock wool 10, thick aluminum plate 4 is selected as 2mm thick aluminum single plate, steel plate 5 is selected as 1.5mm galvanized steel plate with rust prevention and high corrosion resistance, thick fluorocarbon sprayed aluminum single plate 6 is selected as 3mm thick fluorocarbon sprayed aluminum single plate with excellent weather resistance, corrosion resistance, self-cleaning properties and color stability, angle steel 9 is selected as L63x5mm galvanized angle steel, and thermal insulation rock wool 10 is selected as 50mm thermal insulation rock wool.
[0041] The upper part of the structural keel is triangular, which actually serves a similar function to a window sill. Under the premise of meeting the structural strength requirements, it can also serve as a location for air conditioning outdoor units. The lower part is a vertical section, and rainwater flows along the vertical section into the aluminum alloy window system of the next green wall structure.
[0042] The planting trough includes a porous ceramsite layer for planting plants, a coarse gravel layer, a fine gravel layer, and an activated carbon layer arranged sequentially for filtering rainwater.
[0043] The cross-sections of the coarse gravel layer, fine gravel layer, and activated carbon layer are inverted trapezoidal shapes that decrease in size downwards. The water pipe is connected to the bottom of the rainwater collector, which is located below the activated carbon layer at the bottom of the trapezoidal shape.
[0044] The connecting frame 7, with its cuboid structure, connects to the wall and supports the support frame 3, thus enhancing the overall stability and reliability of the green wall structure. Simultaneously, the connecting frame 7 protects the water pipes as they connect to the interior via a rainwater collector.
[0045] There is a water storage cavity between the porous ceramsite layer and the top of the planting trough for water storage and wind protection.
[0046] A separating layer and / or mulch film are provided between the porous ceramsite layer, coarse gravel layer, fine gravel layer and activated carbon layer to isolate different materials.
[0047] The porous expanded clay layer in the planting trough is equipped with a fixing net layer to prevent the plants from being blown away.
[0048] The planting trough has a multi-layer structure, with an isolation layer between each layer to prevent the mixing of different materials. The isolation layer can be selected according to the characteristics of the materials of the upper and lower layers, such as isolation nets, mulch film, ceramic layers, etc. The porous expanded clay layer is where the planted plants grow. The porous expanded clay facilitates the growth of common vertical greening plants such as vines, and can also prevent soil loss caused by wind. The porous expanded clay layer leaves a certain space from the top of the planting trough, which can store rainwater when there is too much rain.
[0049] The inlet of the rainwater collector is connected to the bottom of the planting trough, which is a ceramic layer and / or a fiber cloth layer.
[0050] The bottom activated carbon layer is prone to leakage, so solutions such as ceramic layers are chosen to prevent activated carbon from contaminating the filtered water.
[0051] During rainy weather, rainwater flows down the glass facade and into the planting troughs, irrigating the plants within. The planting troughs are lined from top to bottom with a 200mm thick layer of porous expanded clay (for planting), 100mm coarse gravel (first layer of filtration), 100mm fine gravel (second layer of filtration), and 100mm activated carbon (third layer of filtration). An additional volume is provided on top of these materials to store rainwater. The rainwater passes through multiple layers of filtration materials to the bottom of the planting trough, then through a rainwater collector and piped indoors for collection and reuse. Thus, this application achieves an eco-friendly, low-carbon, and green facade for the building, while simultaneously reducing resource consumption and carbon emissions during the building's operation.
[0052] 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 preferred examples and are not intended to limit the 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A green exterior wall structure for collecting rainwater, characterized in that, include: Structural keel installed on the outside of the building wall, planting troughs for greening and filtering rainwater installed on the structural keel, rainwater collectors, and water pipes; The structural keel includes a support frame with a right-angled triangular cross-section, a connecting steel pipe for connecting the building wall and the structural keel, and a connecting frame; The surface corresponding to one right-angled side of the cross-section of the support frame is fixed to the building wall, and the planting trough is set on the surface corresponding to the other right-angled side of the cross-section of the support frame; The rainwater collector is located below the planting trough, with one end of the water pipe connected to the bottom of the rainwater collector and the other end connected to the rainwater collection pool inside the building.
2. The green exterior wall structure according to claim 1, characterized in that, The green exterior wall structure also includes an exterior wall finish for decorating and covering the structural keel, the exterior wall finish being fixed to the structural keel.
3. The green exterior wall structure according to claim 1, characterized in that, The planting trough includes a porous ceramsite layer for planting plants, and a coarse gravel layer, a fine gravel layer, and an activated carbon layer arranged in sequence for filtering rainwater. The cross-sections of the coarse gravel layer, the fine gravel layer, and the activated carbon layer are inverted trapezoidal shapes that decrease in size sequentially downwards. The water pipe is connected to the bottom of a rainwater collector located below the activated carbon layer on the bottom surface of the trapezoidal shape.
4. The green exterior wall structure according to claim 3, characterized in that, There is a water storage cavity between the porous ceramsite layer and the top of the planting trough for water storage and wind protection.
5. The green exterior wall structure according to claim 2, characterized in that, The exterior wall cladding is equipped with lighting fixtures, which are located on the exterior of the structural keel near the top of the planting trough.
6. The green exterior wall structure according to claim 3, characterized in that, An isolation layer and / or mulch film are provided between the porous ceramsite layer, coarse gravel layer, fine gravel layer and activated carbon layer to separate the different materials.
7. The green exterior wall structure according to claim 1, characterized in that, The structural keel has an inclined surface around the top of the planting trough to guide the flow of rainwater.
8. The green exterior wall structure according to claim 3, characterized in that, The inlet of the rainwater collector is connected to the bottom of the planting trough, and the bottom of the planting trough is a ceramic layer and / or a fiber cloth layer.
9. The green exterior wall structure according to claim 3, characterized in that, The porous ceramsite layer on the planting trough is equipped with a fixing net layer to prevent the plants from being blown away.
10. The green exterior wall structure according to claim 1, characterized in that, The structural keel below the planting trough is a vertical structure used to drain rainwater.