Sponge city construction construction drainage structure
By introducing pre-filtration and infiltration treatment mechanisms into the drainage structure of sponge city construction, the problems of easy clogging of components and poor filtration effect are solved, achieving efficient rainwater filtration and groundwater replenishment, and improving the convenience and efficiency of drainage system maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN CAISHENG ECOLOGICAL ENVIRONMENT CONSTR CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-07
AI Technical Summary
The existing drainage structures used in sponge city construction are difficult to disassemble and maintain efficiently, components are prone to clogging, have poor filtration effects, and cannot effectively intercept impurities and sediment.
The design incorporates a pre-filtration mechanism and a permeation treatment mechanism. The pre-filtration mechanism intercepts large impurities through filter plates, while the permeation treatment mechanism utilizes a graded gravel filter layer and a reverse filter layer to prevent clogging. It is easy to disassemble and maintain.
It improves drainage efficiency, enables natural rainwater circulation and groundwater replenishment, and enhances the maintainability and filtration effect of the drainage system.
Smart Images
Figure CN224468534U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of urban drainage technology, specifically a drainage structure for sponge city construction. Background Technology
[0002] With the acceleration of urbanization, traditional drainage systems are struggling to cope with problems such as rainstorm flooding and water loss, leading to an imbalance in the urban water ecosystem. Existing drainage structures rely heavily on pipe networks for rapid drainage, lacking the capacity for rainwater infiltration, storage, and utilization. This can easily cause drawbacks such as a drop in groundwater levels and surface runoff pollution. The sponge city concept, through a comprehensive approach of "infiltration, retention, storage, purification, utilization, and drainage," requires a new type of drainage structure to enhance the city's hydrological regulation capacity, address the functional deficiencies of traditional drainage models, and achieve the dual goals of sustainable water resource utilization and flood control.
[0003] According to a patent application published on the patent website (authorization announcement number: CN218713812U), "This utility model relates to the field of drainage technology for sponge city construction, and provides a drainage structure for sponge city construction, including: a drainage ditch, a manhole cover installed on the drainage ditch, the lower side of the manhole cover connected to a sedimentation tank, a water storage tank installed below the sedimentation tank, a first drainage hole opened on the side wall of the sedimentation tank, the bottom of the sedimentation tank being arc-shaped, a second drainage hole opened on the side wall of the water storage tank, the horizontal height of the second drainage hole being lower than the horizontal height of the first drainage hole, and a plug plate suspended on the lower side of the manhole cover by a connecting rod, the connecting rod being slidably connected to the manhole cover, the plug plate being used to unclog the manhole cover inlet. This utility model can push out the sediment blocking the manhole cover inlet, and can clear the blockage in time when it is blocked, avoiding water accumulation, and can retain the sediment in the sewage in the sedimentation tank, preventing a large amount of sediment from entering the water storage tank and affecting the water storage quality."
[0004] Based on the above, the applicant believes the following deficiencies exist:
[0005] The construction drainage structure for sponge city includes a drainage ditch. This utility model can push out the silt blocking the inlet of the well cover, clear the blockage in time to avoid water accumulation, and retain the silt in the sewage in the sedimentation tank to prevent a large amount of silt from entering the water storage tank and affecting the water quality. The internal components of this device are difficult to disassemble for maintenance, and will become blocked after long-term use, making it difficult to meet the requirements of efficient drainage. At the same time, the internal components have a poor overall filtration effect on impurities and silt, and cannot effectively intercept impurities and silt. Utility Model Content
[0006] The purpose of this utility model is to provide a drainage structure for sponge city construction to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a drainage structure for sponge city construction, including a drainage ditch, a bottom water channel fixedly connected to the bottom of the drainage ditch, a top frame fixedly connected to the top of the drainage ditch, a pre-filtration mechanism provided on the surface of the top frame, and an infiltration treatment mechanism provided on the surface of the bottom water channel.
[0008] The pre-filtration mechanism includes an inner frame, which is fixedly connected to the left and right ends inside the drainage ditch. An insertion slot is provided at the inner end of the inner frame, into which an insertion frame is inserted. An internal insertion frame is fixedly connected at the inner end of the insertion frame, and a filter plate is inserted inside the internal insertion frame. An installation hole is provided at the top of the inner frame, and a limit plate is installed at the top of the inner frame. A limit bolt is installed inside the installation hole. Rainwater enters the drainage ditch through the drainage well cover and is filtered by multiple sets of filter plates, intercepting large impurities and most of the silt, preventing large impurities from entering the bottom ditch and clogging the drainage. Workers periodically remove the limit bolts, and then remove the entire insertion frame, internal insertion frame, and filter plates to replace and maintain the filter plates, removing surface debris and silt to prevent pore blockage, thus ensuring the filtration effect. The mechanism is easy to disassemble and maintain, and can enhance the drainage efficiency of the device.
[0009] Preferably, the internal insertion frame and filter plate are provided in four sets, all of which are located inside the insertion frame.
[0010] Preferably, the connector is installed inside the connector slot via mounting holes, a limiting plate, and a limiting bolt.
[0011] Preferably, the infiltration treatment mechanism includes a bottom mounting port located at the bottom of the bottom water channel. A permeation well is fixedly connected inside the bottom mounting port. A top cover is provided on the top of the permeation well. Infiltration openings are provided on the surface of the permeation well. A graded gravel filter layer is installed at the top inside the permeation well, and a reverse filter layer is installed at the top of the surface of the permeation well. Water entering the bottom water channel will be discharged through the infiltration openings on the surface of the permeation well. The graded gravel filter layer inside the permeation well and the reverse filter layer outside the permeation well can effectively prevent soil particles from entering the well and clogging the infiltration channel. The permeation well can slowly infiltrate excess rainwater into the ground, replenishing groundwater and realizing the natural circulation of rainwater, thereby further enhancing drainage efficiency.
[0012] Preferably, the infiltration port, top cover, graded gravel filter layer and reverse filter layer are all located inside the bottom water channel.
[0013] Preferably, a top frame is fixedly connected to the top of the drainage ditch, a drainage well cover is inserted into the top frame, and drainage pipes are fixedly connected to the left and right ends of the bottom ditch.
[0014] Compared with the prior art, this utility model provides a drainage structure for sponge city construction, which has the following beneficial effects:
[0015] 1. The drainage structure of this sponge city construction is equipped with a pre-filtration mechanism. Rainwater enters the drainage ditch through the drainage well cover and is filtered by multiple sets of filter plates, intercepting large impurities and most of the silt to prevent large impurities from entering the bottom ditch and clogging the drainage. Workers regularly remove the limit bolts, take out the entire plug-in frame, internal plug-in frame and filter plates to replace and maintain the filter plates, and remove surface debris and silt to prevent pore blockage, thereby ensuring the filtration effect. The mechanism is easy to disassemble and maintain, which can enhance the drainage efficiency of the device.
[0016] 2. The drainage structure of this sponge city construction is equipped with an infiltration treatment mechanism. Water enters the bottom water channel and is discharged through the infiltration port on the surface of the infiltration well. The inside of the infiltration well is equipped with a graded gravel filter layer, and the outside of the infiltration well is equipped with a reverse filter layer, which can effectively prevent soil particles from entering the well and clogging the infiltration channel. The infiltration well can slowly infiltrate excess rainwater into the ground, replenish the groundwater, realize the natural circulation of rainwater, and thus further enhance the drainage efficiency. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the pre-filtration mechanism of this utility model.
[0021] Figure 4 This is a schematic diagram of the bottom permeation treatment mechanism of the present invention.
[0022] In the diagram: 1. Drainage ditch; 2. Top frame; 3. Drainage well cover; 4. Bottom water channel; 5. Drainage pipe; 6. Pre-filtration mechanism; 61. Inner frame; 62. Insertion slot; 63. Insertion bracket; 64. Internal insertion frame; 65. Filter plate; 66. Mounting hole; 67. Limiting plate; 68. Limiting bolt; 7. Infiltration treatment mechanism; 71. Bottom mounting port; 72. Infiltration well; 73. Infiltration port; 74. Top cover; 75. Graded gravel filter layer; 76. Reverse filter layer. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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 according to the specific circumstances.
[0025] This utility model provides the following technical solution:
[0026] Example 1
[0027] Please see Figure 1-4 A construction drainage structure for sponge city includes a drainage ditch 1, a bottom water channel 4 fixedly connected to the bottom of the drainage ditch 1, a top frame 2 fixedly connected to the top of the drainage ditch 1, a pre-filtration mechanism 6 provided on the surface of the top frame 2, and an infiltration treatment mechanism 7 provided on the surface of the bottom water channel 4.
[0028] The pre-filtration mechanism 6 includes an inner frame 61, which is fixedly connected to the left and right ends inside the drainage ditch 1. An insertion slot 62 is provided at the inner end of the inner frame 61, and an insertion bracket 63 is inserted into the insertion slot 62. An inner insertion frame 64 is fixedly connected to the inner end of the insertion bracket 63, and a filter plate 65 is inserted into the inner insertion frame 64. An installation hole 66 is provided at the top of the inner frame 61, and a limit plate 67 is provided at the top of the inner frame 61. A limit bolt 68 is provided inside the installation hole 66. Rainwater enters the drainage ditch through the drainage well cover 3. Inside, rainwater is filtered through multiple sets of filter plates 65, which intercept large impurities and most of the silt, preventing large impurities from entering the bottom water channel 4 and clogging the drainage. Staff regularly remove the limit bolts 68, take out the entire plug frame 63, internal plug frame 64 and filter plates 65, replace and maintain the filter plates 65, and remove surface debris and silt to prevent pore blockage, thereby ensuring the filtration effect. The whole mechanism is easy to disassemble and maintain, which can enhance the drainage efficiency of the device.
[0029] The internal insertion frame 64 and filter plate 65 are provided in four sets, all of which are located inside the insertion frame 63.
[0030] The plug bracket 63 is installed inside the plug slot 62 through the mounting hole 66, the limiting plate 67 and the limiting bolt 68.
[0031] Example 2
[0032] Please see Figure 1-4 Furthermore, based on Embodiment 1, the infiltration treatment mechanism 7 further includes a bottom mounting port 71, which is located at the bottom of the bottom water channel 4. An infiltration well 72 is fixedly connected inside the bottom mounting port 71. A top cover 74 is provided on the top of the infiltration well 72. An infiltration port 73 is provided on the surface of the infiltration well 72. A graded gravel filter layer 75 is installed at the top inside the infiltration well 72. A reverse filter layer 76 is installed at the top of the surface of the infiltration well 72. Water entering the bottom water channel 4 will be discharged through the infiltration port 73 on the surface of the infiltration well 72. The graded gravel filter layer 75 inside the infiltration well 72 and the reverse filter layer 76 outside the infiltration well 72 can effectively prevent soil particles from entering the well and clogging the infiltration channel. The infiltration well 72 can slowly infiltrate excess rainwater into the ground, replenish groundwater, realize the natural circulation of rainwater, and thus further enhance the drainage efficiency.
[0033] The infiltration port 73, the top cover 74, the graded gravel filter layer 75 and the reverse filter layer 76 are all located inside the bottom water channel 4;
[0034] A top frame 2 is fixedly connected to the top of the drainage ditch 1, and a drainage well cover 3 is inserted inside the top frame 2. Drainage pipes 5 are fixedly connected to the left and right ends of the bottom water ditch 4.
[0035] In actual operation, when this device is in use, rainwater enters the drainage ditch 1 through the drainage well cover 3. The rainwater is filtered by multiple sets of filter plates 65, which intercept large impurities and most of the silt, preventing large impurities from entering the bottom water ditch 4 and clogging the drainage. The staff regularly remove the limit bolt 68, take out the entire plug frame 63, the internal plug frame 64 and the filter plate 65, replace and maintain the filter plate 65, and remove the surface debris and silt to prevent the pores from being blocked, thereby ensuring the filtration effect. The whole mechanism is easy to disassemble and maintain, which can enhance the drainage efficiency of the device.
[0036] Water enters the bottom water channel 4 and is discharged through the infiltration port 73 on the surface of the infiltration well 72. The infiltration well 72 is equipped with a graded gravel filter layer 75 inside and a reverse filter layer 76 outside, which can effectively prevent soil particles from entering the well and clogging the infiltration channel. The infiltration well 72 can slowly infiltrate excess rainwater into the ground to replenish groundwater and realize the natural circulation of rainwater, thereby further enhancing the drainage efficiency. Excess rainwater will be discharged through the drainage pipe 5 discharge device.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A drainage structure for sponge city construction, comprising a drainage ditch (1), characterized in that: The bottom of the drainage ditch (1) is fixedly connected to a bottom water channel (4), the top of the drainage ditch (1) is fixedly connected to a top frame (2), the surface of the top frame (2) is provided with a pre-filtration mechanism (6), and the surface of the bottom water channel (4) is provided with a permeation treatment mechanism (7). The pre-filtration mechanism (6) includes an inner frame (61), which is fixedly connected to the left and right ends inside the drainage ditch (1). The inner end of the inner frame (61) is provided with a plug-in groove (62), and a plug-in frame (63) is inserted into the plug-in groove (62). An inner plug-in frame (64) is fixedly connected to the inner end of the plug-in frame (63). A filter plate (65) is inserted into the inner plug-in frame (64). An installation hole (66) is provided at the top of the inner frame (61). A limit plate (67) is provided at the top of the inner frame (61), and a limit bolt (68) is provided inside the installation hole (66).
2. The drainage structure for sponge city construction according to claim 1, characterized in that: The internal plug-in frame (64) and filter plate (65) are provided in four sets, and all of them are located inside the plug-in bracket (63).
3. The drainage structure for sponge city construction according to claim 1, characterized in that: The plug bracket (63) is installed inside the plug slot (62) through the mounting hole (66), the limiting plate (67) and the limiting bolt (68).
4. The drainage structure for sponge city construction according to claim 1, characterized in that: The permeation treatment mechanism (7) includes a bottom mounting port (71), which is located at the bottom end of the bottom water channel (4). A permeation well (72) is fixedly connected inside the bottom mounting port (71). A top cover (74) is provided on the top of the permeation well (72). A permeation port (73) is provided on the surface of the permeation well (72). A graded gravel filter layer (75) is installed on the top inside the permeation well (72). A reverse filter layer (76) is installed on the top surface of the permeation well (72).
5. A drainage structure for sponge city construction according to claim 4, characterized in that: The infiltration port (73), top cover (74), graded gravel filter layer (75) and reverse filter layer (76) are all located inside the bottom water channel (4).
6. The drainage structure for sponge city construction according to claim 1, characterized in that: The top of the drainage ditch (1) is fixedly connected to a top frame (2), and a drainage well cover (3) is inserted inside the top frame (2). Drainage pipes (5) are fixedly connected to the left and right ends of the bottom water ditch (4).