Seepage and drainage structure for sponge city

By introducing a combined drive system of filter screens and anti-clogging strips into the infiltration and drainage structure of sponge cities, the clogging problem caused by the small size of the filter screen cylinder is solved, achieving efficient filtration and impurity removal, and improving drainage efficiency.

CN224213475UActive Publication Date: 2026-05-08JIANGSU QIANCHENG ECOLOGICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU QIANCHENG ECOLOGICAL TECH CO LTD
Filing Date
2025-02-28
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The filter cylinders of existing sponge city infiltration structures are too small, resulting in slow filtration speed and easy clogging, and internal impurities are difficult to clean thoroughly.

Method used

A sponge city infiltration and drainage structure was designed, which includes a drainage tank, a filtration mechanism, and a drive system. The structure utilizes a combination of a filter screen and an anti-clogging strip. A drive motor drives a linkage cam to make the filter screen vibrate up and down. The anti-clogging strip helps to clear impurities, and the water flow is guided by a water guide plate.

Benefits of technology

It achieves efficient filtration and prevents clogging, allowing impurities to be cleaned in time and water to flow out smoothly, thus improving filtration effect and drainage efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sponge city seepage drainage structure, and relates to the technical field of sponge cities, the sponge city seepage drainage structure comprises a drainage tank, the upper surface of the drainage tank is provided with a water inlet hole, the upper surface of the drainage tank is fixedly connected with a drainage top shell, the position of the drainage top shell corresponds to the water inlet hole, and a filtering mechanism is arranged in the drainage tank; the filtering mechanism comprises a movable frame arranged on the inner wall of the drainage box in a sliding mode. The filtering mechanism is arranged in the drainage box, impurities in water can be filtered through the filtering net plate, and when too many impurities are accumulated on the surface of the filtering net plate, the impurities accumulated on the surface of the filtering net plate can slide to the strip-shaped sewage draining outlet through the effect that the filtering net plate vibrates up and down; the anti-blocking strip enters the strip-shaped drain outlet in a reciprocating mode, so that blocked impurities are dredged through the anti-blocking strip, the impurities fall to the bottom of the drainage box conveniently, and the filtering and anti-blocking effects are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of sponge city technology, and in particular to a sponge city infiltration and drainage structure. Background Technology

[0002] Sponge city is a new generation of urban stormwater management concept. It refers to a city that can be like a sponge, with good resilience in adapting to environmental changes and coping with natural disasters caused by rainwater. When it rains, it absorbs, stores, infiltrates, and purifies water, and when needed, it releases and utilizes the stored water.

[0003] Patent document CN218861730U discloses a sponge city infiltration and drainage structure, including a foundation, a base plate fixedly connected to the top of the foundation, a water collection tank fixedly connected to the bottom of the foundation, a filter screen cylinder movably installed between the base plate and the water collection tank, drainage pipes fixedly connected to both sides of the bottom of the inner wall of the water collection tank, and a protective frame fixedly connected to the center of the bottom surface of the inner wall of the water collection tank. This utility model uses a motor to drive the brush bristles to rotate. After the brush bristles rotate, they can unclog the holes at the bottom of the filter screen cylinder and brush away small debris obstructing the bottom of the filter screen cylinder.

[0004] In actual use, the sponge city drainage structure proposed in the above patent documents has the following drawbacks: the filter screen cylinder is too small in volume, resulting in a small contact surface for filtering accumulated water, which affects the filtration speed and leads to slow drainage. In addition, the filter screen surface is prone to clogging. Furthermore, the brush of this structure can only clean the outside of the filter screen cylinder, while impurities are concentrated inside the filter screen cylinder, making it impossible to clean thoroughly and affecting the dredging effect. Utility Model Content

[0005] This utility model discloses a sponge city infiltration and drainage structure, which aims to solve the technical problem of poor performance of sponge city infiltration and drainage structures in the prior art.

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

[0007] A sponge city drainage structure includes a drainage tank, an inlet hole on the upper surface of the drainage tank, and a drainage top shell fixedly connected to the upper surface of the drainage tank. The position of the drainage top shell corresponds to the inlet hole, and a filtration mechanism is provided inside the drainage tank.

[0008] The filtration mechanism includes a movable frame slidably disposed on the inner wall of the drain tank. Two filter screens are fixedly connected to the lower surface of the movable frame. The two filter screens are symmetrically distributed inside the drain tank in a mutually inclined state. Two corresponding linkage blocks are fixedly connected to the inner surface of the movable frame. Two drive boxes are fixedly connected to the upper surface of the drain tank. The two drive boxes are symmetrically distributed on the left and right sides of the drain top shell. A movable push rod is fixedly connected to the upper surface of the linkage block. The top end of the movable push rod penetrates the drain tank and extends into the interior of the drive box, and is fixedly connected to a movable plate. A waterproof motor box is fixedly disposed on the surface of the drive box. A drive motor is fixedly installed inside the waterproof motor box. The output shaft of the drive motor extends into the interior of the drive box and is fixedly connected to a linkage cam. The position of the linkage cam corresponds to the movable plate.

[0009] An anti-clogging strip is fixedly connected between the front and rear inner walls of the drainage tank, and a strip-shaped drain outlet is provided between the bottom ends of the two filter screens.

[0010] In a preferred embodiment, the linkage cam overlaps with the upper surface of the movable plate, a return spring is sleeved on the surface of the movable push rod, the top end of the return spring is fixedly connected to the lower surface of the movable plate, and the bottom end of the return spring is fixedly connected to the upper surface of the drainage tank.

[0011] In a preferred embodiment, the anti-clogging strip is positioned corresponding to the strip-shaped drain outlet, and the anti-clogging strip is located directly below the strip-shaped drain outlet.

[0012] In a preferred embodiment, a rubber baffle is fixedly connected to the bottom end of the filter screen, and two water guide plates are fixedly connected between the front and rear inner walls of the drainage tank, with the bottom end of the rubber baffle fixedly connected to the top end of the water guide plate.

[0013] In a preferred embodiment, drainage square pipes are fixedly installed on both the left and right sides of the drainage tank, with the inlet end of the drainage square pipes extending into the interior of the drainage tank, and the position of the water guide plate corresponding to the drainage square pipes.

[0014] In a preferred embodiment, the front and rear surfaces of the drainage tank are provided with cleaning ports, and a baffle is fixedly installed on the surface of the drainage tank by bolts, the position of the baffle corresponding to the cleaning port.

[0015] In a preferred embodiment, the drainage top shell has a frustum-shaped structure, and the surface of the drainage top shell is provided with a plurality of water-permeable holes, which are evenly distributed on the surface of the drainage top shell.

[0016] In a preferred embodiment, the upper surface of the drainage tank has two guide holes, the size of which matches the size of the movable push rod, and the movable push rod is slidably connected to the surface of the drainage tank through the guide holes.

[0017] As can be seen from the above, the sponge city infiltration and drainage structure provided by this utility model has the following technical effects.

[0018] Firstly, by installing a filtration mechanism inside the drain tank, impurities in the water can be filtered using a filter screen. When too much impurity accumulates on the surface of the filter screen, a drive motor can drive a linkage cam to push the movable frame downwards. The movable frame then moves the filter screen downwards, and the return spring causes the filter screen to vibrate up and down. This allows the impurities accumulated on the surface of the filter screen to slide down into the strip-shaped drain outlet. Simultaneously, as the filter screen moves up and down, anti-clogging strips reciprocate into the strip-shaped drain outlet, clearing any blockages and allowing the impurities to fall to the bottom of the drain tank. This achieves both filtration and anti-clogging effects.

[0019] Secondly, by setting a drainage top shell on the surface of the water inlet at the top of the drainage tank, the permeable holes on the surface of the drainage top shell can block larger debris, thus facilitating the collection of water in the drainage tank; by setting a water guide plate at the bottom of the filter screen, the water filtered by the impurity removal can be guided by the water guide plate, so that the water is discharged from the drainage square pipe, and a rubber baffle is set between the water guide plate and the filter screen, which can limit the upper and lower movement of the filter screen while guiding the flow. Attached Figure Description

[0020] Figure 1 This is a front view schematic diagram of a sponge city infiltration and drainage structure proposed in this utility model.

[0021] Figure 2 This is a cross-sectional view of a drainage box structure for a sponge city infiltration and drainage system proposed in this utility model.

[0022] Figure 3 This is a side view of the drainage box structure of a sponge city infiltration and drainage structure proposed in this utility model.

[0023] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0024] In the attached diagram: 1. Drainage tank; 2. Water inlet; 3. Drainage top shell; 4. Filter mechanism; 5. Anti-clogging strip; 6. Strip-shaped drain outlet; 7. Water guide plate; 8. Drainage square pipe; 9. Cleaning port; 10. Baffle; 11. Water permeable hole;

[0025] 401. Movable frame; 402. Filter screen; 403. Linkage block; 404. Drive box; 405. Movable push rod; 406. Movable plate; 407. Waterproof motor box; 408. Drive motor; 409. Linkage cam; 410. Return spring; 411. Rubber baffle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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.

[0028] Reference Figure 1 A sponge city drainage structure includes a drainage tank 1, an inlet hole 2 on the upper surface of the drainage tank 1, and a drainage top shell 3 fixedly connected to the upper surface of the drainage tank 1. The position of the drainage top shell 3 corresponds to the inlet hole 2, and a filter mechanism 4 is provided inside the drainage tank 1.

[0029] It should be noted that the drainage top shell 3 has a frustum-shaped structure, and a number of water-permeable holes 11 are opened on the surface of the drainage top shell 3. The number of water-permeable holes 11 are evenly distributed on the surface of the drainage top shell 3.

[0030] It is worth noting that by providing a drainage top shell 3 on the surface of the water inlet hole 2 at the top of the drainage tank 1, the water permeable holes 11 on the surface of the drainage top shell 3 can be used to block larger debris, thereby facilitating the collection of water in the drainage tank 1.

[0031] Reference Figure 2 In a preferred embodiment, the filtration mechanism 4 includes a movable frame 401 slidably disposed on the inner wall of the drain tank 1. Two filter screens 402 are fixedly connected to the lower surface of the movable frame 401. The two filter screens 402 are symmetrically distributed inside the drain tank 1 in a mutually inclined state. Two corresponding linkage blocks 403 are fixedly connected to the inner surface of the movable frame 401. Two drive boxes 404 are fixedly connected to the upper surface of the drain tank 1. The two drive boxes 404 are symmetrically distributed on the left and right sides of the drain top shell 3. A movable push rod 405 is fixedly connected to the upper surface of the linkage block 403. The top end of the movable push rod 405 penetrates the drain tank 1 and extends into the interior of the drive box 404, and is fixedly connected to a movable plate 406.

[0032] It should be noted that two guide holes are provided on the upper surface of the drainage tank 1. The size of the guide holes matches that of the movable push rod 405. The movable push rod 405 is slidably connected to the surface of the drainage tank 1 through the guide holes.

[0033] Reference Figure 3 and Figure 4 In a preferred embodiment, a waterproof motor box 407 is fixedly disposed on the surface of the drive box 404, and a drive motor 408 is fixedly installed inside the waterproof motor box 407. The output shaft of the drive motor 408 extends into the interior of the drive box 404 and is fixedly connected to a linkage cam 409. The position of the linkage cam 409 corresponds to the movable plate 406.

[0034] It should be noted that the linkage cam 409 overlaps with the upper surface of the movable plate 406, and the surface of the movable push rod 405 is fitted with a return spring 410. The top end of the return spring 410 is fixedly connected to the lower surface of the movable plate 406, and the bottom end of the return spring 410 is fixedly connected to the upper surface of the drain tank 1.

[0035] In a preferred embodiment, an anti-clogging strip 5 is fixedly connected between the front and rear inner walls of the drainage tank 1, and a strip-shaped drain outlet 6 is provided between the bottom ends of the two filter screens 402. The position of the anti-clogging strip 5 corresponds to the strip-shaped drain outlet 6, and the anti-clogging strip 5 is located directly below the strip-shaped drain outlet 6.

[0036] The front and rear surfaces of the drainage tank 1 are provided with cleaning ports 9, and the surface of the drainage tank 1 is fixedly installed with baffles 10 by bolts, the position of the baffles 10 corresponding to the cleaning ports 9.

[0037] It should be noted that when cleaning the debris inside the drainage tank 1, the drainage tank 1 can be removed from the green belt installation groove, and then the baffle 10 can be opened to clean the impurities collected in the drainage tank 1 using the cleaning port 9.

[0038] It is worth noting that by setting a filter mechanism 4 inside the drain tank 1, the filter screen 402 can first filter impurities in the water. When too many impurities accumulate on the surface of the filter screen 402, the drive motor 408 can drive the linkage cam 409 to push the movable frame 401 and the filter screen 402 downward. Under the rebound action of the return spring 410, the filter screen 402 will vibrate up and down, which can make the impurities accumulated on the surface of the filter screen 402 slide down to the strip drain outlet 6. At the same time, when the filter screen 402 moves up and down, it will move relative to the anti-clogging strip 5. The anti-clogging strip 5 will enter the strip drain outlet 6, thereby clearing the impurities blocking the strip drain outlet 6. This will make it easier for the impurities to fall to the bottom of the drain tank 1, thus achieving the effects of filtration and anti-clogging.

[0039] In a preferred embodiment, a rubber baffle 411 is fixedly connected to the bottom end of the filter screen 402, and two water guide plates 7 are fixedly connected between the front and rear inner walls of the drainage tank 1, with the bottom end of the rubber baffle 411 fixedly connected to the top end of the water guide plate 7.

[0040] It should be noted that drainage square pipes 8 are fixedly installed on both the left and right sides of the drainage tank 1. The water inlet end of the drainage square pipe 8 extends into the interior of the drainage tank 1, and the position of the water guide plate 7 corresponds to that of the drainage square pipe 8.

[0041] It is worth noting that by providing a water guide plate 7 at the bottom of the filter screen plate 402, the water filtered for impurities can be guided by the water guide plate 7 and discharged from the drain square pipe 8. Furthermore, a rubber baffle 411 is provided between the water guide plate 7 and the filter screen plate 402, which can limit the upper and lower movement of the filter screen plate 402 while guiding the water.

[0042] Working principle: When in use, first place the drainage box 1 into the pre-cut green belt installation groove, and align the drainage square pipes 8 on both sides of the drainage box 1 with the drainage ditch. The drainage can be collected by the water-permeable holes 11 on the surface of the drainage top shell 3, and the impurities in the water can be filtered by the filter screen plate 402 to prevent the drainage pipe from becoming blocked. When it is necessary to clean the surface of the filter screen plate 402, the drive motor 408 can be started to drive the linkage cam 409 to rotate. When the linkage cam 409 rotates, it pushes the movable plate 406 downward to move, which in turn drives the movable push rod 405 to move downward. The movable push rod 405 drives the movable frame 401 and the filter screen plate 402 to move inside the drainage box 1, and under the action of the return spring 410, a vibration effect is achieved to vibrate and clear the impurities on the surface of the filter screen plate 402. At the same time, the anti-blocking strip 5 is used to clear the strip-shaped sewage outlet 6.

[0043] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A sponge city infiltration and drainage structure, comprising a drainage tank (1), characterized in that, The upper surface of the drainage tank (1) is provided with a water inlet hole (2), and a drainage top shell (3) is fixedly connected to the upper surface of the drainage tank (1). The position of the drainage top shell (3) corresponds to the water inlet hole (2). A filter mechanism (4) is provided inside the drainage tank (1). The filtration mechanism (4) includes a movable frame (401) slidably disposed on the inner wall of the drain tank (1). Two filter screens (402) are fixedly connected to the lower surface of the movable frame (401). The two filter screens (402) are symmetrically distributed inside the drain tank (1) in a mutually inclined state. Two corresponding linkage blocks (403) are fixedly connected to the inner surface of the movable frame (401). Two drive boxes (404) are fixedly connected to the upper surface of the drain tank (1). The two drive boxes (404) are symmetrically distributed on the left and right sides of the drain top shell (3). The linkage blocks (403) A movable push rod (405) is fixedly connected to the upper surface of the drive box (404). The top end of the movable push rod (405) passes through the drainage box (1) and extends into the interior of the drive box (404). A movable plate (406) is fixedly connected to it. A waterproof motor box (407) is fixedly installed on the surface of the drive box (404). A drive motor (408) is fixedly installed inside the waterproof motor box (407). The output shaft of the drive motor (408) extends into the interior of the drive box (404) and is fixedly connected to a linkage cam (409). The position of the linkage cam (409) corresponds to that of the movable plate (406). An anti-clogging strip (5) is fixedly connected between the front and rear inner walls of the drainage tank (1), and a strip-shaped drain outlet (6) is provided between the bottom ends of the two filter screens (402).

2. The sponge city infiltration and drainage structure according to claim 1, characterized in that, The linkage cam (409) overlaps with the upper surface of the movable plate (406), and a return spring (410) is sleeved on the surface of the movable push rod (405). The top end of the return spring (410) is fixedly connected to the lower surface of the movable plate (406), and the bottom end of the return spring (410) is fixedly connected to the upper surface of the drain tank (1).

3. The sponge city infiltration and drainage structure according to claim 1, characterized in that, The anti-blocking strip (5) is positioned corresponding to the strip-shaped drain outlet (6), and the anti-blocking strip (5) is located directly below the strip-shaped drain outlet (6).

4. The sponge city infiltration and drainage structure according to claim 1, characterized in that, A rubber baffle (411) is fixedly connected to the bottom end of the filter screen (402), and two water guide plates (7) are fixedly connected between the front and rear inner walls of the drainage tank (1). The bottom end of the rubber baffle (411) is fixedly connected to the top end of the water guide plate (7).

5. The sponge city infiltration and drainage structure according to claim 4, characterized in that, Drainage square pipes (8) are fixedly installed on both the left and right sides of the drainage tank (1). The water inlet end of the drainage square pipe (8) extends into the interior of the drainage tank (1). The position of the water guide plate (7) corresponds to that of the drainage square pipe (8).

6. The sponge city infiltration and drainage structure according to claim 1, characterized in that, The front and rear surfaces of the drainage tank (1) are provided with cleaning ports (9), and the surface of the drainage tank (1) is fixedly installed with baffles (10) by bolts. The position of the baffles (10) corresponds to the cleaning ports (9).

7. The sponge city infiltration and drainage structure according to claim 1, characterized in that, The drainage top shell (3) has a frustum-shaped structure, and a number of water-permeable holes (11) are opened on the surface of the drainage top shell (3). The number of water-permeable holes (11) are evenly distributed on the surface of the drainage top shell (3).

8. The sponge city infiltration and drainage structure according to claim 1, characterized in that, The upper surface of the drainage tank (1) has two guide holes, the size of which matches the movable push rod (405). The movable push rod (405) is slidably connected to the surface of the drainage tank (1) through the guide holes.

Citation Information

Patent Citations

  • Sponge city infiltration and drainage structure

    CN218861730U