Sponge regulation and storage ditch

Abstract

The utility model relates to the technical field of urban drainage regulation, storage and purification, and discloses a sponge regulation and storage ditch which comprises a drainage ditch located below a perforated road gutter apron, gutter inlets are formed in the drainage ditch and communicated with adjacent catch basins, and flow blocking weirs are arranged in the drainage ditch and located on the two sides of each gutter inlet. The flow blocking weir is used for blocking rainwater from directly flowing into the gutter inlet, so that a stagnant storage area is formed on the side, away from the gutter inlet, of the flow blocking weir, and redundant rainwater overflows the flow blocking weir to the gutter inlet. The sponge regulation and storage ditch is spongy and improved based on a conventional drainage ditch, the flow blocking weirs are arranged on the two sides of the gutter inlet of the drainage ditch, rainwater is left in the drainage ditch for retention and storage, excessive rainwater flows into the gutter inlet through the upper portions of the flow blocking weirs and is drained to the rainwater well, and therefore the original drainage function of the drainage ditch is reserved, rainwater retention and storage are achieved, and the rainwater storage effect is improved. The rainwater can be further utilized subsequently, and the sponge city construction concept is implemented.

Description

Technical Field

[0001] This utility model relates to the field of urban drainage regulation and purification technology, and in particular to a sponge regulation ditch. Background Technology

[0002] With urbanization, many cities are facing water shortages. Rainwater is a fundamental, direct, and economical water resource, and an important part of the natural water cycle. It plays a crucial role in regulating and replenishing regional water resources and improving and protecting the ecological environment.

[0003] Traditional road drainage ditches serve to quickly collect and drain rainwater to prevent road flooding. However, water resources are not fully utilized, and the requirements for the capacity and conveying capacity of the necessary rainwater pipes and pumping stations are high, which increases urban construction investment and also increases problems such as flooding, riverbank erosion, and impact loads of pollutants on external drainage bodies.

[0004] Therefore, it is hoped that the urban road drainage design will incorporate the sponge city concept to achieve rainwater storage, infiltration, and purification, and release and utilize the stored water when needed, so as to achieve effective rainwater utilization and thus have good resilience in adapting to environmental changes and responding to natural disasters caused by rainwater. Utility Model Content

[0005] The purpose of this invention is to provide a sponge storage ditch to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A sponge-like water storage ditch includes a drainage ditch located below an open road curb. The drainage ditch is equipped with rainwater inlets that are connected to nearby rainwater wells. A flow-blocking weir is provided on both sides of each rainwater inlet in the drainage ditch. The flow-blocking weir is used to prevent rainwater from flowing directly into the rainwater inlet, thereby forming a retention area on the side of the flow-blocking weir away from the rainwater inlet. Excess rainwater overflows the flow-blocking weir and flows into the rainwater inlet.

[0008] As an alternative, a filter layer is installed at the bottom of the drainage ditch and below the retention area, and a blind drain pipe connected to the rainwater inlet is installed in the filter layer.

[0009] As an alternative, a filter screen is installed above the weir to prevent debris or filter media from the rainwater from flowing into the rainwater inlet.

[0010] As an alternative, the height of the weir is 1 / 2 to 2 / 3 of the depth of the drainage ditch.

[0011] As an optional solution, the drainage ditch is also connected to the building's rainwater outlet pipe.

[0012] As an optional solution, the rainwater inlet is equipped with an opening cover.

[0013] As an alternative, the drainage ditch is made of standard brick masonry, and the inner surface of the drainage ditch is plastered with cement mortar.

[0014] As an alternative, a plain concrete cushion layer and a graded crushed stone cushion layer are installed between the drainage ditch and the plain soil surface from top to bottom.

[0015] The beneficial effects of this utility model are:

[0016] This sponge-type water storage ditch is an upgrade and transformation of conventional drainage ditches. Weirs are set on both sides of the rainwater inlet of the drainage ditch to retain rainwater in the drainage ditch. Excess rainwater flows into the rainwater inlet through the weir and is discharged into the rainwater well. This not only retains the original drainage function of the drainage ditch, but also realizes rainwater retention for further utilization of rainwater, thus implementing the concept of sponge city construction. Attached Figure Description

[0017] Figure 1 This is a top view of the sponge storage ditch provided in this embodiment of the utility model;

[0018] Figure 2 yes Figure 1 Cross-sectional view at point AA;

[0019] Figure 3 yes Figure 1 Cross-sectional view at point BB.

[0020] In the attached image:

[0021] 1. Drainage ditch; 2. Rainwater inlet; 3. Weir; 4. Retention area; 5. Filter layer; 6. Drainage blind pipe; 7. Filter screen; 8. Building rainwater outlet pipe; 9. Perforated cover plate; 10. Cement mortar; 11. Plain concrete cushion layer; 12. Graded crushed stone cushion layer. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.

[0027] Please see Figures 1 to 3 As shown, this embodiment provides a sponge water storage ditch, including a drainage ditch 1 located below the perforated road surface stone. A rainwater inlet 2 is provided in the drainage ditch 1, and the rainwater inlet 2 is connected to an adjacent rainwater well. A flow-blocking weir 3 is provided in the drainage ditch 1 on both sides of each rainwater inlet 2. The flow-blocking weir 3 is used to prevent rainwater from flowing directly into the rainwater inlet 2, thereby forming a retention area 4 on the side of the flow-blocking weir 3 away from the rainwater inlet 2. Excess rainwater overflows the flow-blocking weir 3 and flows into the rainwater inlet 2.

[0028] Therefore, based on the conventional drainage ditch 1, a sponge city upgrade was carried out. Weirs 3 were set on both sides of the rainwater inlet 2 of the drainage ditch 1 to retain rainwater in the drainage ditch 1. Excess rainwater flows into the rainwater inlet 2 through the weir 3 and is discharged into the rainwater well. This not only retains the original drainage function of the drainage ditch 1, but also realizes rainwater retention for further utilization of rainwater, thus implementing the concept of sponge city construction.

[0029] Optionally, a filter layer 5 is provided at the bottom of the drainage ditch 1 and below the retention area 4, and a blind drain pipe 6 connected to the rainwater inlet 2 is provided in the filter layer 5.

[0030] The filter layer 5 is preferably made of solid particulate filter material, such as activated carbon or gravel. During the rainwater flow, the rainwater is filtered and purified through multiple layers before penetrating downwards and being discharged through the drainage blind pipe 6, thereby purifying the rainwater.

[0031] Furthermore, a filter screen 7 is installed above the weir 3. The filter screen 7 is used to block garbage or filter material of the filter layer 5 from flowing into the rainwater inlet 2.

[0032] Among them, the mesh size of filter screen 7 must be smaller than the size of the filter material to prevent the filter material from floating away with rainwater.

[0033] Optionally, the height of the weir 3 is 1 / 2 to 2 / 3 of the depth of the drainage ditch 1, so as to retain and filter most of the rainwater.

[0034] Optionally, the drainage ditch 1 is also connected to the building rainwater outlet pipe 8, so that the building rainwater can be collected into the drainage ditch 1 for retention and filtration.

[0035] Optionally, the rainwater inlet 2 is provided with an opening cover plate 9 to facilitate regular cleaning and maintenance of the rainwater inlet 2.

[0036] Optionally, the drainage ditch 1 is a standard brick masonry structure, and the inner surface of the drainage ditch 1 is coated with cement mortar 10 to prevent rainwater from seeping into the ground.

[0037] Optionally, a plain concrete cushion layer 11 and a graded crushed stone cushion layer 12 are sequentially provided between the drainage ditch 1 and the plain soil surface from top to bottom to ensure the structural stability of the sponge water storage ditch.

[0038] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A sponge water storage trench, characterized in that, The system includes a drainage ditch (1) located below the perforated road surface, a rainwater inlet (2) is provided in the drainage ditch (1), the rainwater inlet (2) is connected to the adjacent rainwater well, and a flow-blocking weir (3) is provided in the drainage ditch (1) and on both sides of each rainwater inlet (2). The flow-blocking weir (3) is used to block rainwater from flowing directly into the rainwater inlet (2), thereby forming a retention area (4) on the side of the flow-blocking weir (3) away from the rainwater inlet (2), and excess rainwater overflows the flow-blocking weir (3) and flows into the rainwater inlet (2).

2. The sponge water storage trench according to claim 1, characterized in that, A filter layer (5) is provided at the bottom of the drainage ditch (1) and below the retention area (4), and a blind drain pipe (6) connected to the rainwater inlet (2) is provided in the filter layer (5).

3. The sponge water storage trench according to claim 2, characterized in that, A filter screen (7) is provided above the flow-blocking weir (3). The filter screen (7) is used to block garbage in the rainwater or the filter material of the filter layer (5) from flowing into the rainwater inlet (2).

4. The sponge water storage trench according to claim 1, characterized in that, The height of the weir (3) is 1 / 2 to 2 / 3 of the depth of the drainage ditch (1).

5. The sponge water storage trench according to claim 1, characterized in that, The drainage ditch (1) is also connected to the building's rainwater outlet pipe (8).

6. The sponge water storage trench according to claim 1, characterized in that, The rainwater inlet (2) is provided with an opening cover plate (9).

7. The sponge water storage trench according to claim 1, characterized in that, The drainage ditch (1) is a standard brick masonry structure, and the inner surface of the drainage ditch (1) is coated with cement mortar (10).

8. The sponge water storage trench according to claim 7, characterized in that, A plain concrete cushion layer (11) and a graded crushed stone cushion layer (12) are sequentially arranged between the drainage ditch (1) and the plain soil surface from top to bottom.

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