Tubular biological retention device

Abstract

The utility model discloses a tubular bioretention device, and belongs to the technical field of bioretention facilities. Comprising a regulation, storage and slow release device capable of being buried in the bottom of a foundation pit and a connecting piece inserted into the regulation, storage and slow release device. One end of the connecting piece is embedded into the regulation and storage slow release device, and a fixed outer pipe capable of extending to the ground and a tubular efficient purifier capable of being arranged in the fixed outer pipe are embedded into the other end of the connecting piece; the ends, deviating from the connecting piece, of the tubular efficient purifier and the fixed outer pipe are embedded in the flow guide top cover, and the flow guide top cover can communicate with the interior of the regulation, storage and slow release device through the tubular efficient purifier and the connecting piece; the opening end of the flow guide top cover and the end, embedded in the connecting piece, of the tubular efficient purifier are detachably connected with perforated cellular boards. The tubular bioretention device solves the problems that in the construction process of existing bioretention facilities, construction difficulty is large, standardization is poor, and maintenance is difficult.

Description

Technical Field

[0001] This utility model belongs to the technical field of bioretention facilities, and in particular relates to a tubular bioretention device. Background Technology

[0002] With the development of green technology facilities and concepts such as sponge cities, numerous theoretical studies and practical applications have shown that bioretention facilities have a good ability to control runoff stormwater pollution. Currently, common bioretention facilities include rain gardens and bioretention ponds. However, the construction of current rain gardens, bioretention ponds, and other bioretention facilities mainly involves designing corresponding structural layers according to needs and then constructing each structural layer. This method requires high precision in construction, occupies a large area, and has high costs, often making it difficult to achieve the expected results.

[0003] Therefore, there is an urgent need for a tubular bioretention device that can reduce the requirements for construction precision, reduce the land area required, and at the same time ensure good control of runoff rainwater pollution. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a tubular bioretention device, which solves the problems of high construction difficulty, poor standardization and maintenance difficulties in the construction of existing bioretention facilities.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a tubular biological retention device, including a storage and slow-release device that can be buried at the bottom of a foundation pit and a connector inserted into the storage and slow-release device;

[0006] One end of the connector is embedded inside the storage and slow-release device, and the other end of the connector is equipped with a fixed outer tube that can extend to the ground and a tubular high-efficiency purifier that can be built into the fixed outer tube.

[0007] The tubular high-efficiency purifier and the fixed outer tube, one end of which is away from the connector, are both embedded in the flow guide top cover, and the flow guide top cover can be connected to the interior of the storage and slow-release device through the tubular high-efficiency purifier and the connector.

[0008] The open end of the flow guide top cover and the end of the tubular high-efficiency purifier embedded in the connector are both detachably connected to a perforated honeycomb plate, and the interior of the tubular high-efficiency purifier can be used to fill purification filler.

[0009] Optionally, the top and sides of the regulating and slow-release device for inserting the connector are hollowed out.

[0010] Optionally, the storage and slow-release device is provided with support columns at its top and bottom.

[0011] Optionally, the bottom of the storage and slow-release device is provided with several through holes.

[0012] Optionally, the storage and slow-release device can be connected to a drainage facility via a pipeline.

[0013] Optionally, the storage and slow-release device is provided with splicing grooves and positioning connectors that can engage with the splicing grooves.

[0014] Optionally, the flow guide top cover is funnel-shaped.

[0015] Optionally, the perforated honeycomb panel is movably snapped into the top opening of the flow guide cover.

[0016] Compared with existing technologies, the beneficial effects achieved by this utility model are as follows: the tubular bioretention device is installed as a finished product, and the main construction process only includes foundation pit excavation, device installation, and soil backfilling, which is convenient to construct and can better ensure the function of the facility. At the same time, when the function of the tubular bioretention device is reduced due to load or other reasons, or when the influent conditions change, it is only necessary to remove the tubular high-efficiency purifier separately and replace the purification packing inside, making maintenance relatively simple. Attached Figure Description

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

[0018] Figure 1 This is a schematic diagram of the tubular biological retention device in a preferred embodiment of the present invention;

[0019] Figure 2 This is a lower view of the tubular bioretention device in a preferred embodiment of the present invention.

[0020] Figure 3 This is a preferred embodiment of the present invention. Figure 2 A schematic cross-sectional view at point AA;

[0021] Among them, 1. Storage and slow release device; 101. Support column; 102. Through hole; 103. Splicing groove; 104. Positioning connector; 2. Connector; 3. Fixed outer pipe; 4. Tubular high-efficiency purifier; 5. Flow guide top cover; 6. Perforated honeycomb panel. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0023] It should be noted that if directional indicators (such as up, down, bottom, top, etc.) are involved in this embodiment, these directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] like Figures 1-3 As shown, a tubular bioretention device includes a storage and slow-release device 1 that can be buried at the bottom of a foundation pit and a connector 2 inserted into the storage and slow-release device 1. One end of the connector 2 is embedded inside the storage and slow-release device 1, and the other end of the connector 2 is fitted with a fixed outer tube 3 that can extend to the ground and a tubular high-efficiency purifier 4 that can be built into the fixed outer tube 3. The ends of the tubular high-efficiency purifier 4 and the fixed outer tube 3 opposite to the connector 2 are both embedded in a flow guide top cover 5, and the flow guide top cover 5 can be connected to the storage and slow-release device 1 through the tubular high-efficiency purifier 4 and the connector 2. The open end of the flow guide top cover 5 and the end of the tubular high-efficiency purifier 4 embedded in the connector 2 are both detachably connected to a perforated honeycomb plate 6, and the interior of the tubular high-efficiency purifier 4 can be used to fill purification filler.

[0025] As described above, the storage and slow-release device 1 serves as a base for mounting components such as the connector 2, the tubular high-efficiency purifier 4, the fixed outer pipe 3, the flow guide top cover 5, and the perforated honeycomb panel 6. The storage and slow-release device 1 has a hollow internal box structure, and the inside of the box can be used to store water. Both the connector 2 and the tubular high-efficiency purifier 4 have hollow internal tubular structures. The connector 2 can connect the tubular high-efficiency purifier 4 to the storage and slow-release device 1, that is, rainwater entering the flow guide top cover 5 through the perforated honeycomb panel 6 can be transferred from the tubular high-efficiency purifier 4 to the inside of the storage and slow-release device 1.

[0026] During construction, the regulating and slow-release device 1, connector 2, perforated honeycomb panel 6, and fixed outer pipe 3 are initially assembled and buried underground, with only one end of the fixed outer pipe 3 exposed above the ground. Then, one end of the tubular high-efficiency purifier 4 is embedded in the flow guide cover 5, and the other end is inserted into the fixed outer pipe 3, aligning with the perforated honeycomb panel 6 on the connector 2. At this point, the flow guide cover 5 of the tubular high-efficiency purifier 4 can be fitted onto the fixed outer pipe 3. The positions of the fixed outer pipe 3, tubular high-efficiency purifier 4, flow guide cover 5, and connector 2 are relatively fixed. Purification filler can then be filled into the tubular high-efficiency purifier 4 through the flow guide cover 5. After the purification filler is filled, another perforated honeycomb panel 6 can be installed at the open end of the flow guide cover 5, thus completing the assembly and installation of the tubular bioretention device. Compared to current bioretention facility construction methods, the tubular bioretention device in this technical solution has lower requirements for construction precision and does not require a large floor area.

[0027] Meanwhile, in this technical solution, the main materials of the tubular bioretention device are PVC, PP, and other plastics, resulting in relatively low costs. The purification packing materials are those already used for water purification in existing technologies, specifically including fiber-based soft fiber packing, elastic three-dimensional packing, combined packing, fiber ball packing, suspended MBBR packing, suspended packing, as well as honeycomb packing, inclined tube packing, and biological ceramic particles; waste gas treatment packing includes activated carbon, molecular sieves, metal oxides, biological packing, and traditional plastic, ceramic packing, nutshell filter media, anthracite filter media, quartz sand filter media, magnetite filter media, and manganese sand filter media, etc. The purification packing can be selected from one or more of the above materials according to the water purification requirements. Furthermore, in this technical solution, the tubular bioretention device is installed as a finished product. The main construction process only includes foundation pit excavation, device installation, and soil backfilling, making construction convenient and better ensuring the facility's functionality. During later use, if the function of the tubular bioretention device decreases due to load or changes in influent conditions, only the purification packing in the tubular high-efficiency purifier 4 needs to be replaced. Specifically, replacing the purification packing is relatively simple. Since the perforated honeycomb plate 6 is movably snapped into the top opening of the guide top cover 5, the perforated honeycomb plate 6 on the guide top cover 5 and the guide top cover 5 can be easily removed. The fixed outer tube 3 can prevent the surrounding soil from collapsing. The perforated honeycomb plate 6 at the bottom of the tubular high-efficiency purifier 4 can be connected to the end of the tubular high-efficiency purifier 4 with bolts or other fasteners. The perforated honeycomb plate 6 at the bottom of the tubular high-efficiency purifier 4 can block the leakage of the purification packing, so that the tubular high-efficiency purifier 4 can be pulled out together with the purification packing, thus facilitating the replacement of the purification packing.

[0028] The above, such as Figure 1 , Figure 3As shown, the perforated honeycomb plate 6 at the open end of the guide cover 5 can intercept larger impurities such as leaves and garbage carried in the runoff rainwater, preventing them from entering the tubular high-efficiency purifier 4 and causing blockage, thus ensuring the functionality of subsequent devices. At the same time, the guide cover 5 is funnel-shaped, which can guide the runoff rainwater into the tubular high-efficiency purifier 4.

[0029] In this embodiment, as Figure 1 As shown, the top and sides of the storage and slow-release device 1, which is used for connecting the connector 2, are hollowed out. The storage and slow-release device 1, buried underground, can create a storage space of a certain volume underground, capable of collecting purified runoff rainwater, thus solving the shortcoming of traditional bioretention facilities that cannot store rainwater after treatment. Furthermore, in this embodiment, to increase the load-bearing strength of the storage and slow-release device 1, a support column 101 is provided inside the device to support its top and bottom.

[0030] Furthermore, the storage and slow-release device 1 can be made of materials such as PP and adopt a modular form. Specifically, the storage and slow-release device 1 is provided with splicing grooves 103 around its perimeter and positioning connectors 104 that can engage with the splicing grooves 103, so that the size and shape can be combined according to the conditions of the installation space.

[0031] Furthermore, the storage and slow-release device 1 can be connected to drainage facilities via pipes, such as rainwater inlets and sewer pipes in the prior art. By connecting the storage and slow-release device 1 to drainage facilities such as rainwater inlets via pipes, the tubular bioretention device in this technical solution can replace the blind pipes and overflow pipes in traditional bioretention facilities to achieve rainwater discharge.

[0032] Furthermore, such as Figure 2 As shown, the bottom of the storage and slow-release device 1 is provided with several through holes 102, which are used to connect the storage space with the soil layer. The number and size of the holes can be adjusted according to the soil moisture content and groundwater conditions of the installation space. When the soil moisture content is insufficient, the purified rainwater in the storage space can replenish the soil through the through holes 102, thus overcoming the shortcoming of traditional biological retention facilities that cannot reuse purified rainwater.

[0033] Working Principle: During construction, the regulating and slow-release device 1, connector 2, perforated honeycomb plate 6, and fixed outer pipe 3 are initially assembled and buried underground, with only one end of the fixed outer pipe 3 exposed above the ground. Then, one end of the tubular high-efficiency purifier 4 is embedded in the flow guide cover 5, and the other end is inserted into the fixed outer pipe 3, aligning with the perforated honeycomb plate 6 on the connector 2. At this point, the flow guide cover 5 of the tubular high-efficiency purifier 4 can be fitted onto the fixed outer pipe 3. The positions of the fixed outer pipe 3, tubular high-efficiency purifier 4, flow guide cover 5, and connector 2 are relatively fixed. Purification filler can then be filled into the tubular high-efficiency purifier 4 through the flow guide cover 5. After the purification filler is filled, another perforated honeycomb plate 6 can be installed at the open end of the flow guide cover 5, thus completing the assembly and installation of the tubular bioretention device. Compared to current bioretention facility construction methods, the tubular bioretention device in this technical solution has lower requirements for construction precision and does not require a large floor area.

[0034] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A tubular bioretention device, characterized by: The utility model relates to a kind of connecting piece (2) and regulating and storing slow-release device (1) capable of being buried in foundation pit bottom including the connecting piece (2); One end of the connecting piece (2) is embedded inside the regulating and storing slow-release device (1), and the other end of the connecting piece (2) is embedded with a fixed outer tube (3) capable of extending to the ground and a tubular high-efficiency purifier (4) capable of being built-in inside the fixed outer tube (3); Wherein, the tubular high-efficiency purifier (4), the fixed outer tube (3) end away from the connecting piece (2) are embedded on the flow guide top cover (5), and the flow guide top cover (5) can be communicated inside the regulating and storing slow-release device (1) through the tubular high-efficiency purifier (4), the connecting piece (2); The open end of the flow guide top cover (5) and the end of the tubular high-efficiency purifier (4) embedded in the connecting piece (2) are both detachably connected with punched honeycomb plate (6), and the inside of the tubular high-efficiency purifier (4) can be used to fill purification filler.

2. The tubular bioretention device of claim 1, wherein: The top and the periphery of the regulating and storing slow-release device (1) for inserting the connecting piece (2) are in a hollow shape.

3. The tubular bioretention device of claim 1, wherein: The inside of the regulating and storing slow-release device (1) is provided with support columns (101) supported on the top and the bottom thereof.

4. The tubular bioretention device of claim 1, wherein: The bottom of the regulating and storing slow-release device (1) is provided with a plurality of through holes (102).

5. The tubular bioretention device of claim 1, wherein: The regulating and storing slow-release device (1) can be connected to drainage facilities through a pipeline.

6. The tubular bioretention device of claim 1, wherein: The periphery of the regulating and storing slow-release device (1) is provided with splicing groove pieces (103) and positioning connecting pieces (104) capable of being clamped with the splicing groove pieces (103).

7. The tubular bioretention device of claim 1, wherein: The flow guide top cover (5) is in a funnel shape.

8. The tubular bioretention device of claim 1, wherein: The punched honeycomb plate (6) is movably clamped on the top opening of the flow guide top cover (5).

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