Modularized bioretention facility with replaceable soil layer

Abstract

The utility model provides a modularized bioretention facility capable of replacing soil layers, which comprises a shell, the interior of the shell is divided into a plurality of different cavities by partition plates, each cavity is filled with a corresponding soil layer, green plants are planted in the uppermost soil layer, and the green plants are planted in the uppermost soil layer. A pipeline communicated with the overflow well is embedded in the bottommost soil layer, the adjacent cavities are communicated through partition plate water-permeable holes formed in the partition plates, and the adjacent bioretention facilities are communicated through shell water-permeable holes formed in the outer wall of the shell; the corresponding soil layer in the inner cavity of the shell can be replaced in real time by opening the insertion plate, so that the function of the rainwater garden can be quickly recovered, the water absorption, permeability and pollutant adsorption capacity of the soil layer are maintained, and normal growth of plants is maintained while the water storage and permeation capacity of facilities is maintained; the bioretention facility is of a modular structure and is convenient to assemble, disassemble and maintain, fixed-point maintenance can be achieved by lifting the independent modules through the handles, and use is convenient and flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of biological retention facilities, in particular to a modular biological retention facility with replaceable soil layers. Background Art

[0002] As one of the green technology measures for controlling the source of sponge city construction, bioretention facilities are widely used in the construction of sponge cities on various types of land. As a component of bioretention facilities, plants play an important role in ensuring that bioretention facilities can play their ecological functions in a long-term and stable manner, reducing soil erosion, purifying runoff pollution, and presenting good landscapes.

[0003] When bioretention facilities are put into use for a long time, phenomena such as soil compaction may occur. These factors will cause the porosity to decrease, and the ability to absorb water, penetrate and adsorb pollutants will be reduced. This will not only affect the infiltration capacity of the facility, but will also seriously threaten the growth of plant roots, making it impossible for plants to survive.

[0004] Therefore, in order to solve the defects and shortcomings in the above-mentioned prior art, it is urgently necessary to provide a modular bioretention facility with a replaceable soil layer so as to restore the function of the rain garden and realize the function of quickly replacing the soil layer. Utility Model Content

[0005] In order to solve the defects and shortcomings in the prior art, the utility model provides a modular bioretention facility with replaceable soil layers.

[0006] The specific solution provided by the utility model is:

[0007] A modular bioretention facility with replaceable soil layers comprises a shell, characterized in that the interior of the shell is divided into a number of different cavities by a partition plate, each cavity is filled with a corresponding soil layer, green plants are planted inside the topmost soil layer, a pipe connected to an overflow well is buried inside the bottommost soil layer, adjacent cavities are connected through partition water-permeable holes opened inside the partition, and adjacent bioretention facilities are connected through shell water-permeable holes opened on the outer wall of the shell.

[0008] As a further preferred embodiment of the present utility model, the shell includes a body and an inserting plate, and the inserting plate is plug-fitted with the body and installed on one side of the body.

[0009] As a further preferred embodiment of the present utility model, a plurality of plug-in plate water-permeable holes are opened inside the plug-in plate, and a pipe hole corresponding to the pipe is opened at the bottom of the plug-in plate.

[0010] As a further preferred embodiment of the present invention, a slot is provided on an inner wall of one side of the body, a plug hole is provided inside one side of the partition, and the plug board is plugged into the body by passing through the slots on both sides and through the plug hole.

[0011] As a further preferred embodiment of the utility model, a plurality of pipe water-permeable holes are pierced on the circumferential outer wall of the pipe.

[0012] As a further preferred embodiment of the present invention, the pipes are buried in an up-and-down staggered manner inside the lowest soil layer.

[0013] As a further preferred embodiment of the present invention, the number of the cavities is three, and the three cavities are filled with a planting soil layer, a medium sand filter layer and a gravel drainage layer in sequence from top to bottom.

[0014] As a further preferred embodiment of the present invention, handles are fixed on both sides of the top of the shell.

[0015] As a further preferred embodiment of the present invention, an overflow well is arranged in the middle of the plurality of modular bioretention facilities, and an overflow port is arranged inside the overflow well.

[0016] As a further preferred embodiment of the present invention, the bottom of the modular biological retention facility at the bottom layer is also padded with an impermeable membrane.

[0017] Compared with the prior art, the technical effects that can be achieved by the utility model include:

[0018] 1) The utility model provides a modular bioretention facility with replaceable soil layers. By opening the plug plate, the corresponding soil layer in the internal cavity of the shell can be replaced in real time, so that the function of the rain garden can be quickly restored, the water absorption, permeability and adsorption capacity of the soil layer for pollutants can be maintained, and the infiltration capacity of the facility can be maintained while maintaining the normal growth of plants.

[0019] 2) The utility model provides a modular bioretention facility with replaceable soil layers. The bioretention facility is configured as a modular structure, which is convenient for loading and unloading, saving time and effort, and is easy to maintain. Individual modules can be lifted up by a handle to achieve fixed-point maintenance, which is convenient and flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0021] Figure 2 It is a schematic diagram of the split structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the soil layer structure of the utility model.

[0023] Figure 4 It is a schematic diagram of the installation structure of the utility model. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] [First embodiment]

[0028] like Figure 1-4The present invention is provided in the first embodiment as a modular bioretention facility with replaceable soil layers, comprising a shell, the interior of which is divided into a number of different cavities by a partition plate 14, each cavity being filled with a corresponding soil layer, green plants being planted inside the topmost soil layer, a pipe 12 connected to an overflow well being buried inside the bottommost soil layer, rainwater filtered from the soil layer being collected through the pipe 12 and discharged into the overflow well, adjacent cavities being connected through partition water-permeable holes 140 opened inside the partition plate 14, so that rainwater from each module is connected without affecting the rainwater filtration rate, adjacent bioretention facilities being connected through shell water-permeable holes 11 opened on the outer wall of the shell, so that rainwater from each soil layer is connected without affecting the rainwater filtration rate, and the bioretention facility being arranged as a modular structure, which is convenient for loading and unloading, saving time and effort, and facilitating maintenance, and handles 15 being fixed on both sides of the top of the shell, and a single module being lifted by the handles for fixed-point maintenance, which is convenient and flexible to use.

[0029] like Figure 2 As shown, the shell in this embodiment is configured as a split structure, including a main body 1 and a plug plate 2. The plug plate 2 is plugged into the main body 1 and installed on one side of the main body 1. By opening the plug plate, the corresponding soil layer in the internal cavity of the shell can be replaced in real time, thereby quickly restoring the function of the rain garden, maintaining the water absorption, permeability and adsorption capacity of the soil layer for pollutants, maintaining the infiltration capacity of the facility, and maintaining the normal growth of plants.

[0030] like Figure 2 As shown, a plurality of plug-in plate water-permeable holes 21 are provided inside the plug-in plate 2, and water communication between adjacent modular bioretention arrangements is achieved through the partition plate water-permeable holes 140 and the plug-in plate water-permeable holes 21. A pipe hole 22 corresponding to the pipe 12 is provided at the bottom of the plug-in plate 2, and the pipe 12 is installed inside the pipe hole 22. Rainwater filtered from the soil layer is collected through the pipe 12 and discharged into the overflow well; preferably, a plurality of pipe water-permeable holes are provided on the circumferential outer wall of the pipe 12 to facilitate the effective collection of rainwater in the soil layer, and the pipe 12 is buried in an up-and-down staggered manner inside the lowest soil layer, which makes full use of the internal installation space of the lowest soil layer to maximize rainwater collection, and also appropriately improves the internal support strength of the lowest soil layer through the up-and-down staggered installation structure.

[0031] like Figure 2 As shown, a slot 131 is provided on the inner wall of one side of the body 1 in this embodiment, and a plug hole 132 is provided inside one side of the partition plate. The plug plate 2 is plugged into the body 1 by interfacing with the slots 131 on both sides and passing through the plug hole 132 .

[0032] Those skilled in the art should be aware that the specific number of cavities can be determined according to the needs of collecting rainwater. Specifically in the present embodiment, three cavities are provided, and the three cavities are filled with a planting soil layer 141, a medium sand filter layer 142 and a gravel drainage layer 143 from top to bottom. Green plants are planted in the planting soil layer 141 to achieve irrigation of the green plants and buffering effect on rainwater. The medium sand filter layer 142 is used to effectively filter rainwater, and the particle size of the medium sand can be selected according to the filtering requirements; and the gravel drainage layer 143 is used to accommodate the internal pipe 12 to achieve drainage to the overflow well.

[0033] like Figure 4 As shown, during specific installation and use, a plurality of modular bioretention facilities are combined and arranged with each other. The specific number and width of the modular bioretention facilities are determined according to the irrigation and drainage requirements of the specific application scenario, and the height is flush with the height of the overflow well 3, so that during heavy rain, the overflow rainwater from the top of the modular bioretention facility can enter the overflow well 3 through the top of the overflow well 3. An overflow port 31 is provided inside the overflow well 3, and a large flow of rainwater can be directly discharged into the rainwater pipe network through the overflow port 31; as a further preference, an impermeable membrane 4 is also provided at the bottom of the lowest modular bioretention facility to prevent rainwater from unexpectedly seeping out from the bottom of the bioretention facility, so as to make full use of the received rainwater.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A modular bioretention facility with replaceable soil layers, comprising a housing, characterized in that: The interior of the shell is divided into a plurality of different cavities by a partition plate (14), each cavity is filled with a corresponding soil layer, green plants are planted in the top soil layer, a pipe (12) connected to an overflow well is buried in the bottom soil layer, adjacent cavities are connected via partition water-permeable holes (140) opened in the partition plate (14), and adjacent biological retention facilities are connected via shell water-permeable holes (11) opened on the outer wall of the shell.

2. A modular bioretention facility with replaceable soil layers according to claim 1, characterized in that: The shell comprises a main body (1) and an insert plate (2), wherein the insert plate (2) is plug-fitted with the main body (1) and installed on one side of the main body (1).

3. A modular bioretention facility with replaceable soil layers according to claim 2, characterized in that: A plurality of plug-in plate water-permeable holes (21) are provided inside the plug-in plate (2), and a pipe hole (22) corresponding to the pipe (12) is provided at the bottom of the plug-in plate (2).

4. A modular bioretention facility with replaceable soil layers according to claim 2, characterized in that: A slot (131) is provided on the inner wall of one side of the body (1), a plug hole (132) is provided inside one side of the partition plate, and the plug plate (2) is plugged into the body (1) by interfacing with the slots (131) on both sides and passing through the plug hole (132).

5. The modular bioretention facility with replaceable soil layer according to claim 1, characterized in that: A plurality of pipe water-permeable holes are provided on the circumferential outer wall of the pipe (12).

6. The modular bioretention facility with replaceable soil layer according to claim 1, characterized in that: The pipes (12) are buried in an up-and-down staggered manner inside the lowest soil layer.

7. The modular bioretention facility with replaceable soil layer according to claim 1, characterized in that: The cavities include three, and the three cavities are filled with a planting soil layer (141), a medium sand filter layer (142) and a crushed stone drainage layer (143) in sequence from top to bottom.

8. The modular bioretention facility with replaceable soil layer according to claim 1, characterized in that: Handles (15) are also fixed on both sides of the top of the shell.

9. The modular bioretention facility with replaceable soil layer according to claim 1, characterized in that: An overflow well (3) is arranged in the middle of the plurality of modular bioretention facilities, and an overflow port (31) is arranged inside the overflow well (3).

10. The modular bioretention facility with replaceable soil layer according to claim 9, characterized in that: The bottom of the modular bioretention facility at the bottom layer is also padded with an impermeable membrane (4).

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