Road drainage device for sponge city

Abstract

This utility model relates to a road drainage device for sponge cities, belonging to the field of road drainage technology. It includes a treatment box and a manhole cover placed inside a drainage well. The manhole cover is set on top of the treatment box and the top of the manhole cover is at the same level as the ground. A first filter hole is opened on the manhole cover. Limiting grooves are symmetrically opened on both sides inside the treatment box. A multi-treatment component for treating accumulated water is snapped between the two limiting grooves. An anti-backflow component is fixedly installed at the bottom of the treatment box. This utility model significantly improves the pollutant removal efficiency of road drainage through the cooperation of the manhole cover and the multi-treatment component, protecting the water quality of downstream water bodies. The multi-treatment component is installed by snapping into the limiting groove with a T-shaped connecting plate, which is convenient to remove for cleaning or replacement. At the same time, the anti-backflow component uses the principle of buoyancy. When the external water level rises, it pushes the hollow stainless steel float to the surface, which can tightly seal the drainage pipe inlet and effectively prevent backflow.

Description

Technical Field

[0001] This utility model relates to the field of road drainage technology, and in particular to road drainage devices for sponge cities. Background Technology

[0002] The construction of sponge cities aims to address urban water environment problems through ecological means. As a key link in rainwater management, its road drainage system is directly related to the effectiveness of runoff pollution control and urban flooding prevention.

[0003] However, existing conventional road drainage technologies face significant challenges in practical applications: First, their pollutant interception capacity is insufficient. Traditional rainwater inlets or grates can only block large floating objects such as leaves and plastic bags, lacking effective deep purification methods for the large amounts of fine-particle sediment, suspended solids, and dissolved heavy metals and organic pollutants carried in initial rainwater. This results in untreated polluted runoff directly entering water bodies or pipe networks, exacerbating eutrophication and water quality deterioration in downstream water bodies. Second, the system has poor maintainability. Filter components are usually fixed deep in drainage wells or have complex structures. Cleaning accumulated debris or replacing failed filter cartridges requires specialized equipment and personnel to go down into the well, which is time-consuming, labor-intensive, and costly to maintain. This makes the system prone to clogging or failure, affecting long-term drainage efficiency. Third, there is a risk of backflow under extreme weather conditions. When heavy rain causes a surge in water levels in downstream pipe networks or backwater in rivers, external sewage may flow back into roads and urban spaces through drainage outlets, causing not only localized flooding and damage to the urban environment but also the spread of pollutants and equipment damage, posing safety hazards. Utility Model Content

[0004] To overcome the technical defects of existing technologies, this utility model provides a road drainage device for sponge cities, which has the effect of efficiently treating water accumulation and preventing backflow.

[0005] The technical solution adopted by this utility model is as follows: it includes a treatment box and a well cover placed inside the drainage well. The well cover is set on the top of the treatment box and the top of the well cover is on the same horizontal plane as the ground. A first filter hole is opened on the well cover. Limiting grooves are symmetrically opened on both sides inside the treatment box. A multi-processing component for treating accumulated water is snapped between the two limiting grooves. An anti-backflow component is fixedly installed at the bottom of the treatment box.

[0006] Preferably, in order to drain the treated water, a drain pipe is fixed to the bottom of the treatment tank, and a rubber ring is fixedly installed on the inner wall of the drain pipe.

[0007] Preferably, in order to perform multiple treatments on the accumulated water, the multiple treatment component includes two T-shaped connecting plates, which are respectively snapped into the two limiting grooves. A handle, a filter plate, and a placement rack are fixed between the two T-shaped connecting plates in sequence.

[0008] Preferably, in order to improve the filtration effect, a second filter hole is provided on the filter plate, the diameter of the second filter hole is smaller than the diameter of the first filter hole, and a ceramic adsorption plate for adsorbing heavy metals or organic matter is inserted inside the placement rack.

[0009] Preferably, in order to guide the water flow and improve the treatment efficiency, a triangular truncated block for guiding the flow is fixed on the inner side of both T-shaped connecting plates.

[0010] Preferably, in order to effectively prevent backflow of water, the anti-backflow component includes a vertical plate, the top of which is fixedly installed at the bottom of the treatment box, and a mounting groove is provided on one side of the vertical plate.

[0011] Preferably, in order to enable the float to rotate flexibly inside the mounting groove and to facilitate the limitation of the float's position, a rotating shaft is rotatably installed inside the mounting groove, a connecting plate is fixed to the outside of the rotating shaft, and a float is fixedly installed on the other side of the connecting plate. The float is made of stainless steel and is hollow inside.

[0012] Preferably, in order to limit the position of the float and provide a buffering effect when there is too much water, a spring is fixedly connected between the top of the connecting plate and one side of the upright plate.

[0013] The beneficial effects of this utility model are as follows: large particles of garbage are intercepted through the first filter hole of the manhole cover, and the second filter hole on the filter plate further filters out fine impurities. The ceramic adsorption plate adsorbs heavy metals and organic pollutants. The multi-filter adsorption structure significantly improves the pollutant removal efficiency of road drainage, protects the water quality of downstream water bodies, and the multi-treatment components are installed by inserting the T-shaped connecting plate into the limiting groove. With the handle design on the top, the entire component can be easily removed for cleaning or replacement, greatly reducing the difficulty and cost of daily maintenance. At the same time, the anti-backflow component uses the principle of buoyancy. When the external water level rises, it pushes the hollow stainless steel float to the surface, causing the connecting plate to rotate and lift around the shaft, which can tightly seal the drainage pipe inlet and effectively prevent backflow. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram showing the overall structure of this utility model broken down.

[0016] Figure 3 This is a schematic diagram showing the connection between the treatment box, drain pipe, and rubber ring of this utility model;

[0017] Figure 4 This is a schematic diagram of the multi-processing component structure of this utility model;

[0018] Figure 5 This is a cross-sectional view of the anti-backflow component structure of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Treatment box; 2. Manhole cover; 3. First filter hole; 4. Limiting groove; 5. Multi-treatment assembly; 501. T-shaped connecting plate; 502. Handle; 503. Filter plate; 504. Second filter hole; 505. Placement rack; 506. Ceramic adsorption plate; 507. Triangular truss; 6. Anti-backflow assembly; 601. Vertical plate; 602. Mounting groove; 603. Rotating shaft; 604. Connecting plate; 605. Float ball; 606. Spring; 7. Drain pipe; 8. Rubber ring. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] like Figures 1-5 As shown, this embodiment provides a road drainage device for sponge cities, including a treatment box 1 and a manhole cover 2 placed inside a drainage well. The treatment box 1 is made of corrosion-resistant, high-strength alloy material. The manhole cover 2 is set on top of the treatment box 1, and the top of the manhole cover 2 is on the same horizontal plane as the ground, which facilitates the discharge of accumulated water. A first filter hole 3 is opened on the manhole cover 2. Limiting grooves 4 are symmetrically opened on both sides inside the treatment box 1. A multi-processing component 5 for treating accumulated water is engaged between the two limiting grooves 4, so that the multi-processing component 5 can be easily removed and cleaned or replaced. An anti-backflow component 6 is fixedly installed at the bottom of the treatment box 1. A drain pipe 7 is fixedly installed at the bottom of the treatment box 1. A rubber ring 8 is fixedly installed on the inner wall of the drain pipe 7. The rubber ring 8 not only improves the sealing effect between the drain pipe 7 and the anti-backflow component 6, but also reduces the impact on the drain pipe 7 when the anti-backflow component 6 rotates, thus extending the service life of the drainage device.

[0022] In actual use, road water enters the treatment tank 1 through the first filter hole 3 of the manhole cover 2. The first filter hole 3 can initially intercept large garbage, preventing it from entering the treatment tank 1 and affecting the subsequent treatment effect. Subsequently, the water flows into the multi-processing component 5, which can further filter fine impurities, ensuring that even finer particles in the water are effectively removed. It can also adsorb heavy metals and organic pollutants in the water, significantly improving the pollutant removal efficiency of road drainage, thereby protecting the water quality of downstream water bodies. The water that has undergone multiple filtrations is discharged through the drain pipe 7. In the event of extreme weather or a surge in the water level of the downstream pipe network, the anti-backflow component 6 can tightly seal the inlet of the drain pipe 7, effectively preventing water from backflowing into the road and urban space.

[0023] As a technical optimization solution of this utility model, specifically as follows: Figure 4As shown, the multi-processing component 5 includes two T-shaped connecting plates 501, which are respectively snapped into the two limiting grooves 4. A handle 502, a filter plate 503, and a placement rack 505 are fixed between the two T-shaped connecting plates 501 in sequence. The filter plate 503 has a second filter hole 504, the diameter of which is smaller than that of the first filter hole 3. A ceramic adsorption plate 506 for adsorbing heavy metals or organic matter is inserted into the placement rack 505, which facilitates the replacement of the ceramic adsorption plate 506 that has no adsorption effect. A triangular truncated platform 507 for guiding flow is fixed on the inner side of each of the two T-shaped connecting plates 501.

[0024] In use, the accumulated water, after passing through the first filter hole 3 of the manhole cover 2, falls into the multi-processing assembly 5. It first passes through the space below the handle 502, then flows into the filter plate 503. The filter plate 503 has densely distributed second filter holes 504, whose diameter is smaller than the first filter holes 3, effectively intercepting finer impurities and ensuring that only relatively clean water can continue to flow downwards. Simultaneously, the ceramic adsorption plate 506 inserted inside the placement rack 505, with its porous structure and excellent adsorption performance, can efficiently adsorb heavy metal ions and organic pollutants in the accumulated water. To further purify the water, the two T-shaped connecting plates 501 in the design of the multi-treatment component 5 not only serve as connections and supports, but the triangular platform 507 fixed on its inner side can also guide the water flow, allowing the water to flow more smoothly through the drain pipe 7, thereby improving the efficiency of the entire treatment process. In addition, the snap-fit ​​method between the T-shaped connecting plate 501 and the limiting groove 4, as well as the design of the top handle 502, make it easy for staff to remove the multi-treatment component 5 from the treatment box 1 when cleaning or replacing it, greatly reducing the difficulty and cost of daily maintenance.

[0025] As a technical optimization solution of this utility model, specifically as follows: Figure 5 As shown, the anti-backflow component 6 includes a vertical plate 601. The top of the vertical plate 601 is fixedly installed at the bottom of the treatment box 1. A mounting groove 602 is provided on one side of the vertical plate 601. A rotating shaft 603 is rotatably installed inside the mounting groove 602, which can drive the connecting plate 604 and the float 605 to rotate. The connecting plate 604 is fixedly installed on the outside of the rotating shaft 603. The float 605 is fixedly installed on the other side of the connecting plate 604. The float 605 is made of stainless steel and is hollow inside. A spring 606 is fixedly connected between the top of the connecting plate 604 and one side of the vertical plate 601.

[0026] When this utility model is in use, as the external water level rises, the hollow stainless steel float 605 rises under the action of buoyancy, causing the connecting plate 604 to rotate and lift around the pivot 603. At this time, the spring 606 contracts, and the spring 606 has the ability to return to its original state, providing a certain buffer for the float 605. At the same time, it ensures that the float 605 can be stably lifted and close the inlet of the drainage pipe 7. As the water level continues to rise, the float 605 continues to rise until the inlet of the drainage pipe 7 is completely closed, effectively preventing the backflow of water into the road and urban space. This not only improves the safety of the drainage device, but also avoids problems such as local flooding, damage to the urban environment, and the spread of pollutants caused by backflow. After the water level drops, the float 605 automatically resets under the action of the spring 606, and the inlet of the drainage pipe 7 reopens, restoring normal drainage function. The entire anti-backflow component 6 has a simple structure, is easy to operate, and has high reliability and stability, providing a strong guarantee for road drainage in sponge cities.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A road drainage device for sponge cities, comprising a treatment tank (1) and a manhole cover (2) placed inside a drainage well, wherein the manhole cover (2) is disposed on top of the treatment tank (1) and the top of the manhole cover (2) is at the same level as the ground, characterized in that: The well cover (2) has a first filter hole (3), and the treatment box (1) has symmetrically opened limit grooves (4) on both sides inside. A multi-processing component (5) for treating accumulated water is snapped between the two limit grooves (4). An anti-backflow component (6) is fixedly installed at the bottom of the treatment box (1).

2. The road drainage device for sponge cities according to claim 1, characterized in that: The bottom of the treatment box (1) is fixed with a drain pipe (7), and a rubber ring (8) is fixedly installed on the inner wall of the drain pipe (7).

3. The road drainage device for sponge cities according to claim 1, characterized in that: The multi-processing component (5) includes two T-shaped connecting plates (501) which are respectively snapped into the two limiting grooves (4). A handle (502), a filter plate (503) and a placement rack (505) are fixed between the two T-shaped connecting plates (501) in sequence.

4. The road drainage device for sponge cities according to claim 3, characterized in that: The filter plate (503) has a second filter hole (504) with a diameter smaller than that of the first filter hole (3). The placement rack (505) has a ceramic adsorption plate (506) for adsorbing heavy metals or organic matter inserted inside.

5. The road drainage device for sponge cities according to claim 4, characterized in that: Both of the T-shaped connecting plates (501) have a triangular truncated pyramid (507) fixed on their inner sides for guiding the flow.

6. The road drainage device for sponge cities according to claim 1, characterized in that: The anti-backflow component (6) includes a vertical plate (601), the top of which is fixedly installed at the bottom of the treatment box (1), and a mounting groove (602) is provided on one side of the vertical plate (601).

7. The road drainage device for sponge cities according to claim 6, characterized in that: A rotating shaft (603) is rotatably installed inside the mounting groove (602). A connecting plate (604) is fixed to the outside of the rotating shaft (603). A float (605) is fixedly installed on the other side of the connecting plate (604). The float (605) is made of stainless steel and is hollow inside.

8. The road drainage device for sponge cities according to claim 7, characterized in that: A spring (606) is fixedly connected between the top of the connecting plate (604) and one side of the upright plate (601).

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