Building facade greening system and rainwater recovery greening method

Abstract

The invention provides a building facade greening system and a rainwater recycling greening method.The building facade greening system comprises at least one greening unit, the greening unit comprises a planting groove and a connecting pipeline, the planting groove is detachably connected with a building facade, and a water storage area is formed in the planting groove; the planting groove is provided with a water inlet and communicated with a rainwater drainage system on a building roof through a connecting pipeline. According to the rainwater recycling greening method, rainwater on the roof enters the planting groove through the connecting pipeline and is accumulated in the water storage area, and water is supplied to planting soil. The method has the beneficial effects that waste of water resources can be reduced, the maintenance cost is reduced, the rainwater utilization rate is increased, and the greening effect of the building facade is improved.

Description

Technical Field

[0001] This invention belongs to the field of building greening technology, and in particular relates to a building facade greening system and a rainwater harvesting greening method. Background Technology

[0002] In existing technologies, vertical greening not only beautifies building facades but also reduces direct sunlight, which is beneficial for indoor insulation. However, vertical greening systems often rely on independently constructed sprinkler irrigation systems, requiring additional water supply networks. This not only consumes a lot of water but also fails to effectively collect and utilize natural rainwater, resulting in a double waste of water resources. Furthermore, vertical greening is difficult to maintain, and poor maintenance can negatively impact the aesthetics of the building facade and indoor insulation. The existing technologies for vertical greening systems include high maintenance costs, low water utilization rates, inability to effectively combine and utilize natural rainwater, and potential impacts on building facade aesthetics and indoor insulation due to maintenance difficulties. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a building facade greening system and a rainwater harvesting greening method, which is particularly suitable for realizing the spontaneous collection and storage of rainwater and replenishment of vertical greening, reducing greening maintenance costs, improving water resource utilization, reducing reliance on manual labor, and the detachable planting troughs facilitate maintenance and easy replacement of plant varieties or poorly maintained plants, reducing maintenance difficulty and improving the greening effect of building facades.

[0004] The technical solution adopted in this invention is: a building facade greening system, including at least one greening unit, the greening unit including a planting trough and a connecting pipe, the planting trough being detachably connected to the building facade and forming a water storage area inside it, the planting trough having a water inlet and being connected to the rainwater drainage system of the building roof through the connecting pipe.

[0005] Furthermore, the greening unit also includes a planting pot and a water absorber. The planting pot is detachably connected to the planting trough and is used to hold planting soil. The first end of the water absorber is embedded in the planting soil, and the second end extends to the water storage area.

[0006] Furthermore, the planting pot has through holes and is lined with a filter layer to reduce soil loss. The second end of the water-absorbing component extends through the filter layer and through holes to the water storage area.

[0007] Furthermore, the planting trough also has a water outlet, with the height of the water inlet lower than the height of the water outlet.

[0008] Furthermore, the height of the water outlet is lower than the bottom height of the planting pot.

[0009] Furthermore, the building facade greening system also includes a connecting component, which includes a hanging frame body connected to the building facade, a first hook in the planting trough, and a snap-fit ​​part adapted to the first hook.

[0010] Furthermore, the planting trough is equipped with a second hook, and the connecting assembly also includes an elastic reset mechanism and a movable clip. The movable clip is movably connected to the main body of the hanger through the elastic reset mechanism to engage or disengage with the second hook.

[0011] Furthermore, the planting trough and / or connecting pipes are equipped with a filter assembly.

[0012] Furthermore, the present invention also provides a rainwater harvesting and greening method, utilizing the above-mentioned building facade greening system, comprising the following steps:

[0013] Multiple planting troughs are installed on the building facade and connected by connecting pipes;

[0014] The water inlet of the planting trough at the first end is connected to the rainwater drainage system of the building roof through a connecting pipe;

[0015] Planting pots are installed in the planting trough. A filter layer is laid in the planting pot and a water-absorbing component is pre-embedded. Planting soil is filled in the planting pot. The first end of the water-absorbing component is pre-embedded in the pre-embedded soil, and the second end is immersed in the water storage area of ​​the corresponding planting trough.

[0016] Rainwater from the roof enters the planting trough through connecting pipes and accumulates in the water storage area, supplying water to the planting soil through the water suction device.

[0017] The advantages and positive effects of this invention are as follows: by adopting the above technical solution, water waste can be reduced, maintenance costs can be lowered, and rainwater utilization can be improved; it can reduce dependence on artificial irrigation and external water resources, and the modular and detachable design can reduce maintenance difficulty, facilitate replacement and repair, and improve the greening effect of building facades. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating a usage scenario of one embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a greening unit in one embodiment of the present invention;

[0020] Figure 3 This is an external schematic diagram of a greening unit in one embodiment of the present invention.

[0021] In the picture:

[0022] 1. Planting trough; 2. Planting pot; 3. Connecting pipe; 4. Filter; 5. Non-woven fabric; 6. Planting soil; 7. Water absorption component; 8. Hanging frame body; 9. Expansion bolt; 11. Water inlet; 12. Water outlet; 13. Reinforcing plate; 14. Water storage area; 15. First hook; 16. Second hook; 81. Snap-fit ​​part; 82. Movable clip; 83. Elastic reset mechanism. Detailed Implementation

[0023] The embodiments of the present invention will now be described with reference to the accompanying drawings. The described embodiments are only some embodiments of the invention, and not all embodiments.

[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar units or units having the same or similar functions throughout.

[0025] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that terms such as "installation," "connection," and "fixing" should be interpreted broadly, and can refer to direct connection, installation, or fixing, or indirect connection, installation, or fixing. The present invention does not impose any limitations in this regard.

[0026] like Figures 1 to 3 As shown in the diagram, this invention provides an embodiment of a building facade greening system, including at least one greening unit. Each greening unit includes a planting trough 1 and a connecting pipe 3. The planting trough 1 is detachably connected to the building facade and forms a water storage area 14 inside. The planting trough 1 has a water inlet 11 and is connected to the building roof's rainwater drainage system via the connecting pipe 3. By connecting the water inlet 11 of the planting trough 1 to the building roof's rainwater drainage system, the rainwater that would otherwise be drained is directly utilized, improving water resource utilization and reducing dependence on external water sources for greening irrigation. The detachable planting trough 1 facilitates maintenance and plant replacement.

[0027] In this embodiment, the greening unit also includes a planting pot 2 and a water-absorbing component 7. The planting pot 2 is detachably connected to the planting trough 1 and is used to hold planting soil 6. The first end of the water-absorbing component 7 is pre-embedded in the planting soil 6, and the second end extends to the water storage area 14. The extension length is configured such that when the planting pot 2 is placed in the planting trough 1, the second end of the water-absorbing component 7 can be immersed below the liquid surface of the water storage area 14. The water-absorbing component 7 can be made of absorbent cotton rope. By setting up the detachable planting pot 2 and the water-absorbing component 7 extending to the water storage area 14, an automatic water replenishment structure based on capillary action is constructed, enabling plants to autonomously absorb water from the accumulated rainwater, significantly reducing dependence on artificial irrigation and reducing maintenance costs and difficulty.

[0028] In this embodiment, the planting pot 2 has through holes and is lined with a filter layer to reduce the loss of planting soil 6. The second end of the water-absorbing component 7 extends to the water storage area 14 after passing through the filter layer and the through holes. Preferably, multiple through holes are formed at the bottom of the planting pot 2. The filter layer can be made of non-woven fabric 5, which reduces or even prevents the loss of planting soil 6 and facilitates the pre-embedding of the water-absorbing component 7. The structure is simple and the manufacturing cost is low.

[0029] In this embodiment, the planting trough 1 also has a water outlet 12, and the height of the water inlet 11 is lower than the height of the water outlet 12. Through the height difference between the water inlet 11 and the water outlet 12, the planting trough 1 can accumulate rainwater in the water storage area 14 on rainy days without exceeding the preset water level limit. The excess part will automatically overflow, realizing the automated collection and storage of natural rainwater and improving the rainwater utilization rate.

[0030] In this embodiment, the height of the water outlet 12 is lower than the bottom height of the planting pot 2. This embodiment ensures that the water level in the water storage area 14 is at a safe height, preventing the plant roots in the planting pot 2 from rotting due to prolonged soaking, improving the plant survival rate and the stability of the greening effect, reducing the frequency of plant replacement due to poor maintenance, and reducing the difficulty of maintenance.

[0031] In this embodiment, the building facade greening system further includes a connecting component, which includes a hanging frame body 8 connected to the building facade. The planting trough 1 is provided with a first hook 15, and the hanging frame body 8 has a snap-fit ​​portion 81 adapted to the first hook 15. The hanging frame body 8 can be installed on the building facade using expansion bolts 9. The snap-fit ​​portion 81 is an L-shaped component connected to the hanging frame body 8 or a slot formed in the hanging frame body 8. It is connected and fixed to the snap-fit ​​portion 81 via the first hook 15, and the planting trough 1 is suspended from the hanging frame body 8. The planting trough 1 is easy to install and disassemble, improving assembly and disassembly efficiency and reducing the difficulty and cost of construction and long-term maintenance.

[0032] In this embodiment, the planting trough 1 is provided with a second hook 16. The connecting assembly also includes an elastic reset mechanism 83 and a movable latch 82. The movable latch 82 is movably connected to the hanger body 8 via the elastic reset mechanism 83 to engage or disengage with the second hook 16. The elastic reset mechanism 83 can be a pre-made spring lock, which includes an adjusting spring, a housing connected to the lower part of the hanger body 8, and a slide member slidably connected to the housing. The movable latch 82 is L-shaped and connected to the slide member. The two ends of the adjusting spring are respectively connected to the inner wall of the housing and the slide member to provide a reset thrust for the slide member. The elastic reset mechanism 83 is movably connected to the hanger body 8, thereby achieving engagement or disengagement with the second hook 16. The elastic reset mechanism 83 is configured to move the movable latch 82 under the action of external force, and after the external force is removed, the movable latch 82 is reset by elastic force and locked with the second hook 16. Without external force, the movable locking part 82 is in the initial position. At this time, the first hook 15 engages with the locking part 81, and the second hook 16 engages with the movable locking part 82 to provide auxiliary locking. When it is necessary to disassemble the planting trough 1, the movable locking part 82 is pulled down against the elastic force of the adjusting spring, so that the top of the movable locking part 82 is lowered to a position below the second hook 16 (release position) to facilitate the disassembly of the planting trough 1. It should be understood that the main vertical load-bearing and force of the planting trough 1 is borne by the sturdy locking part 81 above, while the movable locking part 82 below serves as an auxiliary positioning and locking mechanism to reduce shaking. The elastic reset mechanism 83 facilitates the quick installation of the planting trough 1 and can also assist in locking. Furthermore, the main load-bearing of the locking part 81 avoids reliability issues caused by long-term fatigue of the spring.

[0033] In this embodiment, the water inlet 11 of the planting trough 1 is connected to the rainwater outlet of the building roof via a connecting pipe 3. A pre-made filter 4 can be used as the filter assembly, connected to the connection between the pipe and the rainwater outlet. The specific structure and installation method of the filter are existing technologies and will not be described further in this invention. In another embodiment, the filter assembly includes a filter frame connected to the water inlet 11 of the planting trough 1, which filters water and facilitates cleaning and maintenance. The filter assembly can intercept impurities such as leaves in the rainwater, preventing blockage of the connecting pipe 3, ensuring long-term, stable rainwater collection and irrigation, and reducing maintenance needs due to blockage.

[0034] Specifically, the planting trough 1 is made of stainless steel bent into a single piece, forming an open-topped trough. Reinforcing plates 13 are installed at the corners of its inner walls to enhance structural rigidity. The internal space of the planting trough 1 is constructed as a planting area to accommodate the planting pots 2 and a water storage area 14 located below the planting area. Water inlets 11 and outlets 12 are respectively opened at both ends of the planting trough 1. The planting pots 2 are made of PVC material, with multiple through holes at the bottom. The top edge of the planting pots 2 extends outwards to form a flanged structure. This flanged structure allows for quick placement and removal of the planting pots 2 when placed in the planting trough 1. Non-woven fabric 5 is laid inside the planting pots 2, and water-absorbing components 7 are pre-embedded. Finally, planting soil 6 is filled in, and appropriate plants are planted. Through capillary action, rainwater from the water storage area 14 is continuously transported to the planting soil 6 to replenish moisture.

[0035] Preferably, the greening units are multiple and connected longitudinally to the building facade via connecting pipes 3. The inlet 11 of the first-level planting trough 1 at the very beginning is connected to the roof rainwater hopper or eaves gutter via connecting pipe 3, and a large-particle water filter is installed at the connection point. The outlet 12 of each level of planting trough 1 is connected to the inlet 11 of the next level of planting trough 1 via connecting pipe 3. The height of the inlet 11 of each lower level of planting trough 1 is not higher than the height of the outlet 12 of the previous level of planting trough 1. The roof rainwater flows sequentially through each level of planting trough 1 and is collected for use. The outlet 12 of the last planting trough 1 discharges into the underground drainage network or collection equipment for tiered utilization.

[0036] On the other hand, the present invention also provides a rainwater harvesting and greening method, which utilizes the above-mentioned building facade greening system and includes the following steps:

[0037] Multiple planting troughs 1 are installed on the building facade and connected by connecting pipes 3;

[0038] The water inlet 11 of the planting trough 1 at the first end is connected to the rainwater drainage system of the building roof through the connecting pipe 3;

[0039] Planting pots 2 are installed in planting trough 1. A filter layer is laid in planting pot 2 and water-absorbing components 7 are pre-embedded. Planting soil 6 is filled in planting pot 2. The first end of the water-absorbing component 7 is pre-embedded in the planting soil 6, and the second end is immersed in the water storage area 14 of the corresponding planting trough 1.

[0040] Rainwater from the roof enters the planting trough 1 through the connecting pipe 3 and is stored in the water storage area 14, and then supplies water to the planting soil 6 through the water suction component 7.

[0041] In this embodiment, the planting trough 1 is made of one-piece stainless steel, which is environmentally friendly and pollution-free. Stainless steel is also easy to process, and various styles and colors such as polished, matte, and brushed can be customized. Both the planting trough 1 and the planting pot 2 can be quickly installed and disassembled, facilitating maintenance and plant variety replacement, reducing maintenance difficulty and helping to maintain the greening effect of the building facade. Utilizing roof rainwater for capillary irrigation reduces dependence on external water sources and artificial irrigation, improves rainwater resource utilization, and thus reduces the cost and difficulty of greening maintenance.

[0042] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A building facade greening system, comprising at least one greening unit, characterized in that, The greening unit includes a planting trough and a connecting pipe. The planting trough is detachably connected to the building facade and forms a water storage area inside. The planting trough has a water inlet and is connected to the rainwater drainage system of the building roof through the connecting pipe.

2. The building facade greening system according to claim 1, characterized in that, The greening unit also includes a planting pot and a water-absorbing component. The planting pot is detachably connected to the planting trough and is used to hold planting soil. The first end of the water-absorbing component is embedded in the planting soil, and the second end extends to the water storage area.

3. The building facade greening system according to claim 2, characterized in that, The planting pot has a through hole and is lined with a filter layer to reduce soil loss. The second end of the water-absorbing element extends through the filter layer and the through hole to the water storage area.

4. The building facade greening system according to claim 2 or 3, characterized in that, The planting trough also has a water outlet, and the height of the water inlet is lower than the height of the water outlet.

5. The building facade greening system according to claim 4, characterized in that, The height of the water outlet is lower than the bottom height of the planting pot.

6. The building facade greening system according to claim 1, characterized in that, It also includes a connecting component, which includes a bracket body connected to the building facade, the planting trough being provided with a first hook, and the bracket body having a snap-fit ​​portion adapted to the first hook.

7. The building facade greening system according to claim 6, characterized in that, The planting trough is provided with a second hook, and the connecting assembly further includes an elastic reset mechanism and a movable clip. The movable clip is movably connected to the main body of the hanging frame through the elastic reset mechanism to engage or disengage with the second hook.

8. The building facade greening system according to claim 1, characterized in that, The planting trough and / or the connecting pipe are equipped with a filter assembly.

9. A rainwater harvesting and greening method, utilizing the building facade greening system according to any one of claims 1-8, characterized in that, Includes the following steps: Multiple planting troughs are installed on the building facade and connected by the connecting pipes; The water inlet of the planting trough located at the first end is connected to the rainwater drainage system of the building roof through the connecting pipe; Planting pots are installed in the planting trough. A filter layer is laid in the planting pot and a water-absorbing component is pre-embedded. Planting soil is filled in the planting pot. The first end of the water-absorbing component is pre-embedded in the pre-embedded soil, and the second end is immersed in the water storage area corresponding to the planting trough. Rainwater from the roof enters the planting trough through the connecting pipe and accumulates in the water storage area, supplying water to the planting soil through the water-absorbing component.

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