Water permeable device for sponge city

By designing filtration and cleaning components for permeable devices in sponge cities, the problem of drainage ditch blockage has been solved, achieving effective silt isolation and automatic cleaning, ensuring the smooth flow of urban drainage systems and the aesthetic appeal of the city.

CN224173449UActive Publication Date: 2026-04-28CHONGQING BOKUN CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING BOKUN CONSTRUCTION ENGINEERING CO LTD
Filing Date
2025-05-23
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing drainage ditches and sewers are located underground. Rainwater carries away silt and debris from the roads, causing blockages, reducing drainage efficiency, and affecting traffic and the city's appearance.

Method used

A permeable device for sponge cities was designed, including a permeable well, a well cover, a drainage pipe, a filter assembly, and a cleaning assembly. The device separates silt through a filter screen and a water trough, cleans the silt using a steel ladder, and automatically cleans the filter screen using a cleaning rod and a spring structure to ensure smooth drainage.

Benefits of technology

Effectively isolate and remove silt to prevent blockages, maintain smooth drainage, avoid road flooding, and improve urban drainage and cityscape.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sponge city water permeation, and discloses a sponge city water permeation device which comprises a water permeation well and a well lid connected to the water permeation well in a penetrating mode, two fixing grooves are formed in the well lid, two drainage pipes are arranged on the axial side wall of the water permeation well, and rainwater can permeate asphalt and flow into the water permeation well along water flowing grooves; the height position of the gutter channel can just isolate a part of impurities through asphalt, the gutter channel also adopts a certain gradient, inflow of rainwater can be accelerated, the situation of local water accumulation is avoided, sludge is isolated through a filter screen under the cooperation of a fixing groove, a well lid, a handle, the filter screen and a sliding groove, and the sludge is prevented from being blocked. Due to the fact that a certain height difference exists between the drainage pipe and the bottom of the cavity, the sludge can be precipitated at the bottom of the cavity and cannot flow into the drainage pipe along with the rainwater, and the sludge precipitated at the bottom of the permeable well is cleaned up through the steel ladder stand.
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Description

Technical Field

[0001] This utility model relates to the field of permeable technology for sponge cities, specifically a permeable device for sponge cities. Background Technology

[0002] Sponge city refers to a new concept of urban stormwater management, which aims to make cities like sponges, capable of effectively absorbing, storing, infiltrating and purifying rainwater, and releasing and utilizing the stored water when needed.

[0003] The existing drainage ditches and sewers are all located underground, which can collect and discharge rainwater and sewage. However, during heavy rain, rainwater will carry away the silt and impurities from the roads, and these impurities and silt will also enter the drainage ditches and sewers. Over time, this will cause the drainage ditches to become blocked, reduce the drainage effect, and cause water to accumulate on the roads, affecting traffic and the city's appearance. Utility Model Content

[0004] The purpose of this utility model is to provide a permeable device for sponge cities, in order to solve the problems mentioned in the background art. Existing drainage ditches and sewers are all located underground, which can collect and discharge rainwater and sewage. However, during heavy rain, rainwater will carry away the silt and impurities from the roads, and these impurities and silt will also enter the drainage ditches and sewers. Over time, this will cause the drainage ditches to become blocked, reduce the drainage effect, and cause water accumulation on the roads, which will affect traffic and the appearance of the city.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a permeable device for sponge cities, comprising a permeable well and a manhole cover inserted into the permeable well, the manhole cover having two fixing grooves, two drainage pipes being provided on the axial sidewall of the permeable well, a filter assembly for filtering rainwater and sewage being provided inside the permeable well, a cleaning assembly for cleaning the filter assembly being provided on the filter assembly, and several steel ladders being provided on the inner wall of the drainage pipes.

[0006] Preferably, the filtration assembly includes a chamber formed inside the permeable well, the four walls of the permeable well are provided with water flow channels, the chamber is provided with four sliding grooves, a filter screen is slidably installed on the four sliding grooves, the two ends of the filter screen are fixedly installed with connecting rods, and one end of the connecting rod is fixedly installed with a handle.

[0007] Preferably, the cleaning assembly includes a cleaning plate slidably mounted on four grooves, a plurality of cleaning rods fixedly mounted on the cleaning plate, each of the cleaning rods having a drain hole, and four springs disposed between the filter screen and the cleaning plate, all four springs being located within the four grooves.

[0008] Preferably, the water trough is lower than the height of the permeable well.

[0009] Preferably, the size of the cleaning rod is the same as the size of the filter mesh openings.

[0010] Preferably, the size of the cleaning plate is smaller than the size of the filter screen.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. Rainwater will flow through the asphalt into the permeable well via the drainage channel. The height of the drainage channel is designed to isolate some impurities through the asphalt. The drainage channel also has a certain slope to accelerate the inflow of rainwater and prevent local water accumulation. With the cooperation of the fixed channel, well cover, handle, filter screen and slide, the filter screen isolates the silt, which plays a further role in silt isolation. Because there is a certain height difference between the drain pipe and the bottom of the chamber, the silt will settle at the bottom of the chamber and will not flow into the drain pipe with the rainwater. The silt settled at the bottom of the permeable well is cleaned by the steel ladder.

[0013] 2. When the filter screen becomes clogged with too much silt, rainwater cannot drain completely and accumulates on the screen. This pressure causes the screen to move downwards along the slide and compress the spring, allowing the cleaning rod to enter the screen's holes. Because the cleaning rod matches the size of the screen's holes, it can clean the screen effectively. Furthermore, the cleaning rod has drainage holes, ensuring proper drainage while cleaning the screen. After cleaning, the screen returns to its original shape under the spring's action, continuing to filter rainwater. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the filter assembly of this utility model;

[0016] Figure 3 This is a cross-sectional view of the cleaning component of this utility model;

[0017] Figure 4 This is a detailed structural diagram of the filter assembly and cleaning assembly of this utility model.

[0018] In the diagram: 1. Permeable well; 11. Well cover; 12. Fixing groove; 13. Drainage pipe; 2. Filter assembly; 3. Cleaning assembly; 4. Steel ladder; 21. Chamber; 22. Water trough; 23. Slide; 24. Filter screen; 25. Connecting rod; 26. Handle; 31. Cleaning plate; 32. Cleaning rod; 33. Drainage hole; 34. Spring. Detailed Implementation

[0019] 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.

[0020] Example 1: Please refer to Figure 1 - Figure 4 A permeable device for sponge cities includes a permeable well 1 and a manhole cover 11 inserted into the permeable well 1. The manhole cover 11 has two fixing grooves 12, which facilitate the removal of the manhole cover 11 for cleaning the permeable well 1. Two drainage pipes 13 are provided on the axial side wall of the permeable well 1. The drainage pipes 13 are positioned higher than the bottom of the permeable well 1. When silt enters the permeable well 1, it will settle down and will not flow away with the water flow through the drainage pipes 13, thus easily clogging the drainage pipes 13. A filter assembly 2 for filtering rainwater and sewage is provided inside the permeable well 1. A cleaning assembly 3 is provided on the filter assembly 2 to clean the filter assembly 2, preventing the filter assembly 2 from being clogged and thus reducing the permeability efficiency. Several steel ladders 4 are provided on the inner wall of the drainage pipes 13, which facilitate cleaners to go up and down the permeable well 1 for cleaning.

[0021] The filter assembly 2 includes a chamber 21 inside the permeable well 1. Water channels 22 are provided on the four walls of the permeable well 1. Four sliding grooves 23 are provided on the chamber 21. A filter screen 24 is slidably installed on the four sliding grooves 23. Connecting rods 25 are fixedly installed at both ends of the filter screen 24. A handle 26 is fixedly installed at one end of the connecting rod 25.

[0022] The height of the drainage channel 22 is lower than that of the permeable well 1. The height of the drainage channel 22 to the manhole cover 11 is just right to meet the height of the road asphalt. Asphalt has good permeability, which allows rainwater to enter the drainage channel 22 along the asphalt, and can prevent leaves and other things from entering the permeable well 1. Moreover, the manhole cover 11 and the asphalt are on the same plane, which can prevent motor vehicles from jumping during driving. In addition, the drainage channel 22 has a certain slope, which can accelerate the drainage of rainwater.

[0023] In this embodiment: First, the manhole cover 11 is opened through the two fixing slots 12. Then, the two handles 26 are picked up, and the filter screen 24 is placed downwards along the four sliding grooves 23. Then, the manhole cover 11 is opened and closed. When rainwater comes, the rainwater will flow through the asphalt into the permeable well 1 along the water channel 22. The height of the water channel 22 is just right to isolate some impurities through the asphalt. The water channel 22 also has a certain slope to accelerate the inflow of rainwater and avoid local water accumulation. However, some silt will still enter the permeable well 1. At this time, the silt is filtered out by the filter screen 24. The filter screen 24 acts as a further barrier to isolate the silt. Some fine silt will flow into the chamber 21 through the filter screen 24. Because there is a certain height difference between the bottom of the drain pipe 13 and the bottom of the chamber 21, very little silt will settle at the bottom of the chamber 21 and will not flow into the drain pipe 13 with the rainwater. When cleaning the permeable well 1 regularly, simply open the well cover 11, take out the filter screen 24 through the handle 26, replace and clean the filter screen 24, and then enter the bottom of the permeable well 1 through the steel ladder 4 to clean the silt settled at the bottom of the permeable well 1.

[0024] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figure 3 and Figure 4 The cleaning assembly 3 includes a cleaning plate 31 that is slidably mounted on four slide grooves 23. Several cleaning rods 32 are fixedly mounted on the cleaning plate 31. Each of the cleaning rods 32 has a drain hole 33. Four springs 34 are provided between the filter screen 24 and the cleaning plate 31. The four springs 34 are all located in the four slide grooves 23. The outside of the slide grooves 23 has a limiting plate to prevent the springs 34 from detaching from the slide grooves 23 during compression.

[0025] The size of the cleaning rod 32 is the same as the size of the holes in the filter screen 24. When the holes in the filter screen 24 are blocked, rainwater cannot drain and will accumulate on the surface of the filter screen 24. The rainwater will put pressure on the filter screen 24, causing the filter screen 24 to move downward along the slide groove 23 and compress the spring 34, thereby allowing the cleaning rod 32 to enter the holes in the filter screen 24 to clean the filter screen 24. Because the cleaning rod 32 has a drainage hole 33 in the middle, it can also drain water during the cleaning process. Subsequently, as the rainwater drains, the pressure on the filter screen 24 decreases, and it returns to its initial state under the action of the spring 34.

[0026] The size of the cleaning plate 31 is smaller than that of the filter screen 24. When the filter screen 24 is functioning properly, rainwater flows down through the holes of the filter screen 24 and onto the cleaning plate 31. Because the cleaning plate 31 has a certain slope and is smaller than the filter screen 24, it will not affect the drainage efficiency.

[0027] In this embodiment: when the filter screen 24 is clogged with too much silt, rainwater cannot be completely drained and will accumulate on the filter screen 24. The rainwater then puts pressure on the filter screen 24, causing it to move downwards along the slide groove 23 and compress the spring 34. This allows the cleaning rod 32 to enter the holes of the filter screen 24. Since the size of the cleaning rod 32 matches the size of the holes in the filter screen 24, it can clean the filter screen 24. Furthermore, because the cleaning rod 32 has drainage holes 33, it can clean the filter screen 24 without affecting the drainage function. After cleaning, the filter screen 24 returns to its original shape under the action of the spring 34 as the rainwater drains out, and continues to filter rainwater.

[0028] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A permeable device for sponge cities, comprising a permeable well (1) and a manhole cover (11) inserted into the permeable well (1), wherein the manhole cover (11) has two fixing grooves (12), and two drainage pipes (13) are provided on the axial sidewall of the permeable well (1), characterized in that: The permeable well (1) is equipped with a filter assembly (2) for filtering rainwater and sewage. The filter assembly (2) is equipped with a cleaning assembly (3) for cleaning the filter assembly (2). Several steel ladders (4) are installed on the inner wall of the drain pipe (13).

2. The permeable device for sponge cities according to claim 1, characterized in that: The filter assembly (2) includes a chamber (21) inside the permeable well (1). The four walls of the permeable well (1) are provided with water channels (22). The chamber (21) is provided with four sliding grooves (23). A filter screen (24) is slidably installed on the four sliding grooves (23). A connecting rod (25) is fixedly installed at both ends of the filter screen (24). A handle (26) is fixedly installed at one end of the connecting rod (25).

3. A permeable device for sponge cities according to claim 2, characterized in that: The cleaning assembly (3) includes a cleaning plate (31) slidably mounted on four slide grooves (23). Several cleaning rods (32) are fixedly mounted on the cleaning plate (31). Each of the cleaning rods (32) has a drain hole (33). Four springs (34) are provided between the filter screen (24) and the cleaning plate (31). All four springs (34) are located in the four slide grooves (23).

4. A permeable device for sponge cities according to claim 2, characterized in that: The water channel (22) is lower than the height of the permeable well (1).

5. A permeable device for sponge cities according to claim 3, characterized in that: The size of the cleaning rod (32) is the same as the size of the holes in the filter screen (24).

6. A permeable device for sponge cities according to claim 3, characterized in that: The size of the cleaning plate (31) is smaller than the size of the filter screen (24).