Water storage type planting frame and planting device suitable for slope roof sponge city construction

Abstract

The utility model discloses a water storage type planting frame and planting device suitable for slope roof sponge city construction. The water storage type planting frame and planting device comprises a planting lattice, a water outlet is formed in the middle upper portion of the right side face of the planting lattice, a supporting plate is horizontally arranged in the planting lattice and close to the top, a planting area is arranged above the supporting plate, and a water storage cavity is arranged below the supporting plate. A flow guide plate is obliquely arranged on the right side in the water storage cavity, the top end of the flow guide plate is fixed to the right side wall between the supporting plate and the water outlet, a drainage baffle extending vertically is arranged at the bottom of the flow guide plate, and a drainage channel is defined by the drainage baffle, the right side wall, the flow guide plate and the other two side walls of the planting lattices. A filtering structure is arranged in the drainage channel, and the water outlet is communicated with a drainage pipe. The building requirements of sponge cities on green roofs can be met, the building control indexes are met, rainwater can be recycled conveniently, and meanwhile normal drainage of roofs is not affected during heavy rain.

Description

Technical Field

[0001] This utility model relates to the field of planting technology, specifically to a water-storage planting frame and planting device suitable for sponge city construction with sloping roofs. Background Technology

[0002] Sponge cities refer to cities that mimic the structure and function of natural ecosystems, employing a series of innovative urban planning, construction, and management technologies to achieve multiple goals such as urban drainage, flood control, and greening, thereby improving the city's adaptability and response to natural disasters and realizing sustainable urban development. Given the current situation of low land resource utilization, land scarcity, and high land prices, the construction of sponge city green roofs, especially pitched roofs, has seen increasing practical applications.

[0003] Green roofs not only significantly improve the physical environment of building interior spaces, but also restore the land resources occupied by buildings, recreating green nature in gray cities. They are also of great significance for improving the urban ecological environment, saving energy, and reducing the global greenhouse effect.

[0004] CN205681983U discloses a greening planting frame for sloping roofs, comprising a frame placed on the sloping roof, with multiple planting cells arranged in parallel along the vertical direction within the frame. These planting cells are arranged in a stepped manner, and each planting cell has an overflow hole at its top opening edge. The planting cells contain a planting layer, a water storage layer, and a floating layer. This technical solution is only applicable to hydroponic plants. The planting height fluctuates depending on the water storage capacity. If the water storage decreases, the plants may be at the bottom, reducing sunlight exposure and affecting plant growth. Furthermore, plants may exhibit different growth rates, with some plants being heavier than others, causing tilting and potentially jamming the floating layer. In addition, common roof planting structures are typically laid directly on the roof or tiles. Over time, this can lead to roof deformation or tile breakage. Moreover, the roof planting structure needs to be removed for maintenance, which is time-consuming and labor-intensive. It should also be noted that the drainage of this technical solution is concentrated from the outlet at the very front. During heavy rain, water columns can form, which can easily impact the roof. In addition, its drainage capacity is insufficient and cannot be discharged normally from the roof drainage system, increasing the roof drainage pressure and causing drainage safety accidents. Utility Model Content

[0005] This utility model aims to solve the technical problems existing in the prior art. In particular, it innovatively proposes a water-storage planting frame and planting device suitable for the construction of sponge cities with pitched roofs. It can meet the construction requirements of sponge cities for green roofs, meet the construction control indicators, facilitate the recycling of rainwater, and at the same time, it does not affect the normal drainage of the roof during heavy rainstorms.

[0006] To achieve the above objectives, this utility model provides a water-storing planting frame suitable for sponge city construction on sloping roofs, including planting grids. The planting grids are generally right-angled trapezoidal structures with sloping bottom surfaces. The height of the left side wall is lower than that of the right side wall. A water outlet is provided on the upper middle part of the right side wall, and the water outlet is lower than the bottom of the left side wall. A support plate is horizontally arranged near the top of each planting grid. The support plate is provided with multiple drainage holes. The area above the support plate is a planting area for planting plants, and the area below the support plate is a water storage cavity.

[0007] A guide plate is inclinedly installed on the right side inside the water storage chamber. The top of the guide plate is fixed to the right side wall between the support plate and the outlet. A vertically extending drainage baffle is installed at the bottom of the guide plate. There is a gap between the bottom end of the drainage baffle and the bottom surface of the planting grid for rainwater to flow through. The drainage baffle, the right side wall, the guide plate, and the other two side walls of the planting grid form a drainage channel. A filter structure is installed in the drainage channel. The filter structure is located below the outlet. The outlet is connected to a drain pipe, which is connected to an external rainwater collection system.

[0008] In the above scheme, the bottom surface directly below the drainage channel is set as a plane.

[0009] In the above scheme, a layer of geotextile is laid on the support plate to minimize soil erosion.

[0010] In the above scheme, the filter structure includes a layer of crushed stone, a layer of lightweight ceramsite, and a layer of fine sand arranged sequentially from bottom to top. These layers are arranged in the direction of water flow, resulting in good filtration.

[0011] In the above solution: the planting grid is made of PVC, and the support plate is made of a lightweight material. The materials are simple, and the weight is minimized, reducing the pressure on the roof.

[0012] This utility model also provides a planting device suitable for sponge city construction on sloping roofs, including a water-storage planting frame as described in any of the above-mentioned schemes. There are multiple planting frames arranged in a matrix, with the tops of all the planting frames flush. When the planting frames are installed, the left side of the planting grid of the planting frame is installed on the upper side of the sloping roof, and the right side is located on the lower side. The bottom of the planting grid at the top of the sloping roof and the bottom of the planting grid at the bottom of the sloping roof are provided with support columns for installation on the roof. The support columns in the same column and the support columns in the same row are connected by crossbeams. The crossbeams are vertically provided with support rods corresponding to the planting grids directly above them. The bottom of the planting grid is fixedly connected to the top of the support rod.

[0013] In the above scheme: the supporting columns, supporting struts, and crossbeams are all made of light steel keel. Using light steel keel results in a lightweight structure with high supporting strength, minimizing the load on the building.

[0014] In summary, the beneficial effects of this utility model are as follows: The support plate allows planting soil to be filled on top for planting, and it forms an independent water storage chamber at the bottom, ensuring the water needs of the planted plants. The water outlet limits the water volume, preventing root rot and promoting plant growth. Furthermore, it avoids increasing the load on the roof due to excessive water storage. In case of heavy rain, water can overflow from the top of the planting grid and drain safely into the drainage channels at the roof edge. The drainage channel and filtration structure ensure that the liquid in the water storage chamber must settle at the bottom before being filtered and discharged. Combined with the drainage pipe, filtered rainwater can be collected for subsequent plant irrigation, making rational and effective use of water resources. The support columns and crossbars support the planting grid for easy installation on the roof. The support columns also prevent the planting grid from being directly installed on the roof, maintaining a certain distance for easy roof maintenance. The top of the planting frame is flush with the roof, which allows rainwater to overflow to the edge of the roof when there is a lot of rain or heavy rain, and then be discharged from the roof edge drainage channel. At the same time, the planting is more aesthetically pleasing. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the present invention.

[0016] Figure 2 This is a cross-sectional view of the planting grid. Detailed Implementation

[0017] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0018] like Figure 2As shown, a water-storing planting frame suitable for sponge city construction on sloping roofs includes a planting grid 1, which is a right-angled trapezoidal structure with a sloping bottom. The left side wall is lower than the right side wall, and a water outlet 11 is located in the upper middle part of the right side. The terms "front," "back," "left," and "right" refer to the directions of the planting grid. Figure 2 The orientation shown does not indicate the installation location. Furthermore, the outlet 11 is lower than the bottom of the left side wall, so that when multiple water-storage planting frames are installed later, the left side wall of the adjacent water-storage planting frames will not block the outlet 11, thus ensuring the water output of the outlet 11 and the connection to the drainage pipe 13.

[0019] Each planting grid 1 has a support plate 3 horizontally installed near the top. The support plate 3 has multiple drainage holes, and the area above the support plate 3 is for planting plants. A layer of geotextile fabric 2 is laid on the support plate 3 to minimize soil loss.

[0020] Below the support plate 3 is a water storage chamber, and a guide plate 8 is inclinedly installed on the right side of the water storage chamber. The top of the guide plate 8 is fixed to the right side wall between the support plate 3 and the water outlet 11, and a gap is left between the water outlet 11 and the support plate 3 to prevent the plant roots from getting wet. To ensure water absorption, a water-absorbing cotton strip is also included, which passes through the support plate 3. The bottom end of the water-absorbing cotton strip is located in the water storage chamber, and the top end of the water-absorbing cotton strip is inserted into the planting soil.

[0021] A vertically extending drainage baffle 4 is provided at the bottom of the guide plate 8, with a gap between the bottom end of the drainage baffle 4 and the bottom surface of the planting grid 1 for rainwater to flow through. The drainage baffle 4, together with the right side wall, the guide plate 8, and the other two side walls of the planting grid 1, form a drainage channel, and the top of the drainage channel is sealed by the guide plate 8. The structure is simple, and compared with using pipes, the drainage baffle does not require additional holes, and there is no need to align the holes with the outlet 11, making installation convenient.

[0022] A filter structure is installed within the drainage channel, located below the outlet 11. The filter structure 5 comprises, from bottom to top, a layer of crushed stone, a layer of lightweight ceramsite, and a layer of fine sand. These layers are arranged sequentially according to the direction of water flow, resulting in good filtration. To further enhance the filtration effect, ceramsite is piled at the bottom of the drainage channel.

[0023] The bottom surface directly below the drainage channel is set as a flat surface, that is, the bottom surface of the planting grid is an L-shaped surface, except that the vertical part of the L-shape is set at an obtuse angle with the horizontal part.

[0024] To reduce pressure on the roof, the planting grid 1 is made of PVC, and the support panels are made of lightweight materials, which are simple and minimize the weight of the structure.

[0025] like Figure 1As shown, this utility model also provides a planting device suitable for sponge city construction on sloping roofs, including multiple water-storage planting frames arranged in a matrix, with the tops of all planting frames flush. During installation, the left side of the planting grid 1 is installed on the upper side of the sloping roof, and the right side is located on the lower side. Support columns 12 for installation on the roof are provided at the bottom of the uppermost and lowermost planting grids 1 on the sloping roof. Crossbeams 6 connect the support columns 12 in the same column and the support columns 12 in the same row. Vertical support rods 7 are provided on the crossbeams 6 corresponding to the planting grids 1 directly above them, and the bottom of the planting grid 1 is fixedly connected to the top of the support rods 7. This provides support for individual planting grids 1, resulting in a more stable structure.

[0026] The support column 12, support rod 7, and crossbeam 6 are all made of light steel keel. Using light steel keel results in a lightweight yet high-strength structure, minimizing the load on the building. The outlet 11 is connected to a drainage pipe 13, which leads to a rainwater collection system for collecting, storing, and recycling rainwater for subsequent plant irrigation.

Claims

1. A water storage type planting frame suitable for a sloping roof sponge city construction, characterized in that: The application relates to a water-storing planting frame, which comprises planting frames (1) which are in the shape of right-angled trapezoids with inclined bottom surfaces, the height of the left side wall is lower than that of the right side wall, a water outlet (11) is arranged on the right side surface of the upper middle part, the water outlet (11) is lower than the bottom of the left side wall, a supporting plate (3) is horizontally arranged on the top of each planting frame (1), a plurality of leakage holes are arranged on the supporting plate (3), the upper part of the supporting plate (3) is a planting area for planting plants, and the lower part of the supporting plate (3) is a water-storing cavity; a guide plate (8) is arranged on the right side of the water-storing cavity, the top end of the guide plate (8) is fixed on the right side wall between the supporting plate (3) and the water outlet (11), a vertically-extended drainage baffle (4) is arranged on the bottom of the guide plate (8), the bottom end of the drainage baffle (4) is spaced apart from the bottom surface of the planting frame (1) to form a gap for rainwater to flow through, the drainage baffle (4), the right side wall, the guide plate (8) and the other two side walls of the planting frame (1) form a drainage channel, a filtering structure is arranged in the drainage channel, the filtering structure is arranged below the water outlet (11), the water outlet (11) is connected with a drainage pipe (13) and is connected to an external rainwater collecting system through the drainage pipe (13).

2. The water storage type planting frame suitable for the construction of a sloping roof sponge city according to claim 1, characterized in that: The bottom surface directly below the drainage channel is arranged as a plane.

3. The water storage type planting frame suitable for the construction of a sloping roof sponge city according to claim 1 or 2, characterized in that: A layer of geotextile (2) is arranged on the supporting plate (3).

4. The water storage type planting frame suitable for the sloping roof sponge city construction according to claim 3, characterized in that: The filtering structure (5) comprises a gravel layer, a light-weight ceramic particle layer and a fine sand layer which are sequentially arranged from bottom to top.

5. The water storage type planting frame suitable for the sloping roof sponge city construction according to claim 4, characterized in that: The planting frame (1) is made of PVC, and the supporting plate is made of light-weight material.

6. A planting device suitable for a sloping roof sponge city construction, characterized in that: The application further relates to a water-storing planting frame, which comprises a plurality of the water-storing planting frames according to any one of claims 1-5, and the planting frames are arranged in a matrix, the top parts of all the planting frames are flush, when the planting frames are installed, the left side surfaces of the planting frames (1) are arranged on the upper side of a sloping roof, the right side surfaces are arranged on the lower side of the sloping roof, the bottom of the planting frame (1) located on the uppermost part of the sloping roof and the bottom of the planting frame (1) located on the lowermost part of the sloping roof are provided with supporting columns (12) for being installed on the roof, the supporting columns (12) in the same column and the supporting columns (12) in the same row are connected with horizontal beams (6), the horizontal beams (6) are vertically provided with supporting rods (7) corresponding to the planting frames (1) located directly above the horizontal beams (6), and the bottom of the planting frame (1) is fixedly connected with the top end of the supporting rod (7).

7. The planting device suitable for the construction of a sloping roof sponge city according to claim 6, characterized in that: The supporting columns (12), the supporting rods (7) and the horizontal beams (6) are all made of light steel keels.

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