A rainwater and sewage separation road and its construction method

Abstract

This invention discloses a rainwater and sewage separation road, including rainwater inlets located on both sides of the road and a drainage pipe located beneath the road. Sedimentation tanks are spaced apart on the drainage pipe, with inspection wells above each tank. A connector is located at the top of the drainage pipe, situated above the sedimentation tanks, and a settling plate is connected to the connector. The settling plate has pores, and its projected surface covers the longitudinal section of the drainage pipe, allowing water to flow through it. A filter plate is connected within the sedimentation tank, spaced from the bottom. A connecting pipe is connected to the bottom of the sedimentation tank, leading to an outlet to discharge water that has fallen through the filter plate into the bottom of the sedimentation tank. This invention utilizes the settling plate to settle debris entering the drainage pipe within the sedimentation tank, thereby preventing debris accumulation and improving drainage efficiency.

Description

Technical Field

[0001] This invention belongs to the field of urban road drainage technology, specifically relating to a rainwater and sewage separation road and a construction method for the rainwater and sewage separation road. Background Technology

[0002] Urban road drainage refers to the measures taken to remove rainwater from urban road surfaces. Typically, road surface water flows into street drains according to the road's slope, then from the drains into connecting pipes via storm drains, and from the connecting pipes into inspection wells into the main drainage pipes. Finally, it is discharged from the main drainage pipes to nearby rivers, lakes, or seas. When it rains on urban roads, rainwater carrying debris such as leaves, garbage, and silt from the road surface flows through the storm drains. Due to the small openings in the storm drain covers, some of the debris in the rainwater falls into the drainage pipes, while some debris covers and adheres to the openings in the storm drain covers. As the debris flows through the drainage pipes, it gradually settles at the bottom of the pipes. These deposits reduce the cross-sectional area of ​​the pipes, thus reducing the flow rate and affecting drainage efficiency. Furthermore, the deposits are difficult to clean from the pipes. Debris covering the storm drain cover can reduce the drainage efficiency of the storm drain, causing water accumulation on urban roads and seriously affecting driving safety.

[0003] Therefore, there is a need for a device that can separate rainwater from debris in rainwater, thereby reducing or avoiding problems such as debris in rainwater clogging rainwater inlet covers and accumulating in drainage pipes. Summary of the Invention

[0004] This invention provides a rainwater and sewage separation road and its construction method to solve at least one of the above-mentioned technical problems.

[0005] The technical solution adopted in this invention is as follows: a rainwater and sewage separation road, including rainwater inlets located on both sides of the road and a drainage pipe located below the road. Sedimentation tanks are spaced apart on the drainage pipes, and inspection wells are located above the sedimentation tanks. A connector is located at the top of the drainage pipe, above the sedimentation tanks, and a settling plate is connected to the connector. The settling plate has pores, and its projected surface covers the longitudinal section of the drainage pipe, allowing water in the drainage pipe to pass through the settling plate. A filter plate is connected inside the sedimentation tank, with a gap between the filter plate and the bottom of the sedimentation tank. A connecting pipe is connected to the bottom of the sedimentation tank, and the connecting pipe connects to an outlet to discharge water that has fallen to the bottom of the sedimentation tank after passing through the filter plate.

[0006] Preferably, the settling plate is rotatably connected to the connector, the length of the settling plate is greater than the straight-line distance from the connector to the top surface of the sedimentation tank, and / or the length of the settling plate is less than the maximum distance from the connector to the top surface of the sedimentation tank.

[0007] Preferably, the filter plate is inverted "V" shaped, and the side wall of the sedimentation tank has a placement component, with the lower end of the filter plate overlapping the placement component.

[0008] Preferably, the filter plate includes a first body and a second body, the first body having a first filter hole and the second body having a second filter hole, the diameter of the second filter hole being smaller than that of the first filter hole.

[0009] Preferably, one of the first body and the second body has a connecting groove, and the other has an assembly that mates with the connecting groove.

[0010] Preferably, the rainwater outlet includes a drainage channel and a drainage cover plate covering the drainage channel. The drainage cover plate includes a first assembly and a second assembly connected to the first assembly. A lifting member is provided below the second assembly. The bottom of the lifting member abuts against the bottom of the drainage channel. A support member is connected between the lifting member and the second assembly so that the up-and-down movement of the lifting member drives the up-and-down movement of the second assembly.

[0011] Preferably, one of the lifting component and the second assembly is detachably connected to the support component, and the other is integrally formed with the support component.

[0012] Preferably, the lifting component is a float, which drives the second assembly to move upward under the buoyancy of the water flow in the drainage trough.

[0013] Preferably, the second assembly and the support are made of lightweight materials.

[0014] Preferably, the lifting member has a height limiting member to limit the maximum floating height of the pontoon, and the lifting member has a side limiting member in the circumferential direction to limit the lateral and longitudinal movement of the pontoon.

[0015] Preferably, the first assembly has support portions at both ends, and a plurality of first dividing ribs are connected between the support portions; the second assembly has mating portions at both ends, and a plurality of second dividing ribs are connected between the mating portions; the plurality of first dividing ribs and / or the plurality of second dividing ribs cooperate to create drainage channels.

[0016] Preferably, one of the support portion and the mating portion has a combined boss, and the other has a combined recess that mates with the combined boss.

[0017] Preferably, a guide slope is formed at the connection between the combined boss and the combined recess.

[0018] Preferably, the guide slope has a smooth coating.

[0019] Preferably, the support portion has a plurality of connection holes, and the drainage groove has a connecting bolt corresponding to the connection holes. The connection holes and the connecting bolts cooperate to fix the first assembly onto the drainage groove.

[0020] This invention also discloses a construction method for a rainwater and sewage separation road, comprising the following steps:

[0021] S1. Pipeline layout design: Based on the topography, hydrology, and soil sample characteristics, the direction, diameter, and burial depth of the pipeline are designed.

[0022] S2. Based on the pipeline layout design, fabricate prefabricated components for drainage pipes, rainwater inlets, and sedimentation tanks;

[0023] S3. Road excavation: According to the pipeline layout design, excavate the foundation for drainage pipes, rainwater inlets, and sedimentation tanks.

[0024] S4. Anti-settlement treatment: Backfill the excavated foundation with soil, compact it, and then cover the soil with a layer of sand and gravel.

[0025] S5. Pipe placement: Place the drainage pipe, rainwater inlet, and sedimentation tank on the foundation. Expansion joints need to be reserved when placing the drainage pipe.

[0026] S6. Backfill and level the road surface. After the pipelines are laid, backfill the soil layer, compact it, and then cover the soil layer with a crushed stone base layer.

[0027] S7. Road paving: Concrete or asphalt pavement is laid on top of a crushed stone base.

[0028] Due to the adoption of the above technical solution, the beneficial effects achieved by this invention are as follows:

[0029] 1. In a preferred embodiment of the present invention, as rainwater carrying leaves, garbage, and other debris gradually settles during its flow in the drainage pipe, these debris will accumulate in the sedimentation tank as it passes through, thus reducing or preventing the accumulation of debris in the drainage pipe. To facilitate the cleaning of debris accumulated in the sedimentation tank, an inspection well is provided above the sedimentation tank. As debris continuously accumulates in the sedimentation tank, its debris storage capacity gradually weakens. At this point, the inspection well can be opened periodically to check the accumulation of debris in the sedimentation tank. When excessive debris accumulates, the debris in the sedimentation tank can be cleaned.

[0030] 2. In a preferred embodiment of the present invention, when water flows through the settling plate in the drain pipe, debris such as silt, leaves, and garbage carried in the water will be obstructed by the settling plate. When the water flow is small, the settling plate remains in a naturally drooping state under the action of gravity. After the debris in the water comes into contact with the settling plate, it can sink more quickly under the action of gravity. The settling plate is connected to the connector located above the sedimentation tank, so that the sinking debris can fall into the sedimentation tank precisely, thereby achieving the separation of debris in the water flow and filtering the water flow passing through the settling plate to a certain extent. When the water flow is strong, the water encounters resistance as it passes over the settling plate, causing the plate to rotate along the hinge. This creates an angle between the settling plate surface and the longitudinal section of the drainage pipe. The size of this angle is affected by the water flow velocity; the higher the velocity, the larger the angle, and vice versa. In this situation, debris in the water settles under gravity as it passes over the settling plate and falls into the sedimentation tank. However, during heavy rain, the water flow increases, and the water velocity in the drainage pipe is very fast. Debris in the water does not settle easily. Under the influence of the water flow, the angle between the settling plate surface and the longitudinal section of the drainage pipe further increases. This means the projected surface of the settling plate is insufficient to cover the longitudinal section of the drainage pipe. Since the drainage pipe, in order to prevent urban flooding, tends to discharge floodwater, this further increase in angle provides a larger channel for water flow, ensuring smooth water passage. It also prevents a decrease in the drainage pipe's flood discharge capacity due to debris clogging the settling plate.

[0031] 3. In a preferred embodiment of the present invention, the length of the settling plate is greater than the straight-line distance from the connector to the top surface of the sedimentation tank. This allows the settling plate to extend into the sedimentation tank in its natural downward state, enabling it to pass through the settling plate even when the water flow in the drain pipe is small. The settling plate then filters impurities in the water flow, causing them to settle into the sedimentation tank. The length of the settling plate is less than the maximum distance from the connector to the top surface of the sedimentation tank, i.e., the distance from the connector to the edge of the sedimentation tank. This allows the settling plate to rotate at a larger angle when the water flow is large, preventing it from getting stuck at the edge of the sedimentation tank and thus affecting the flow of water during heavy rain.

[0032] 4. As a preferred embodiment of the present invention, since leaves, garbage, silt and other debris accumulate in the sedimentation tank, bacteria can easily grow and odors can be produced in the humid environment. In order to alleviate the humid environment of the sedimentation tank, a filter plate is installed in the sedimentation tank. The filter plate is spaced from the bottom of the sedimentation tank. When debris accumulates in the sedimentation tank, the water in the debris can seep into the bottom of the sedimentation tank through the filter plate. The bottom of the sedimentation tank is connected to a connecting pipe, which is connected to the outlet to discharge the water that falls into the bottom of the sedimentation tank through the filter plate.

[0033] 5. In a preferred embodiment of the present invention, since the rainwater entering the drainage channel is always in motion, the float will undulate under the movement of the rainwater. That is, under the buoyancy of the flowing rainwater, the float moves up and down, and the first assembly will also exhibit the same up-and-down movement under the drive of the float. In this state, when leaves, garbage, and other debris flow through the drainage channel, the up-and-down movement of the second assembly will cause the width of the drainage channel to change dynamically, thereby preventing leaves, garbage, and other debris from blocking the drainage channel. Even if the drainage channel is blocked, the blockage will be cleared by the water flow during the up-and-down movement of the second assembly and under the pressure of the water flow, thus reducing the possibility of blockage.

[0034] 6. In a preferred embodiment of the present invention, rainwater in the trough flows into the drain pipe. Below the rainwater inlet of the present invention, to prevent debris from clogging the inlet, a second assembly moves up and down under buoyancy, allowing debris to flow more easily through the inlet into the drain pipe, thus preventing blockage and improving drainage efficiency. After entering the drain pipe, the debris is filtered by the settling plate and settles in the sedimentation tank. This invention, combining the rainwater inlet, settling plate, and filter plate, prevents debris carried by rainwater from clogging the rainwater inlet, thereby improving drainage efficiency and preventing urban flooding caused by blocked inlets, thus ensuring driving safety. Furthermore, it prevents debris entering the drain pipe from accumulating in the rainwater pipe, ensuring the drainage performance of the drain pipe is not affected. The inspection well facilitates timely cleaning of debris in the sedimentation tank. In addition, the filter plate drains water from the sedimentation tank, reducing the decay of debris in the sedimentation tank under humid conditions. Attached Figure Description

[0035] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0036] Figure 1 This is a schematic diagram of the drainage trough structure in a waterless state according to a preferred embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the drainage trough structure under a low water flow condition according to a preferred embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of a drainage trough structure under a large water flow condition according to a preferred embodiment of the present invention;

[0039] Figure 4This is a longitudinal section diagram of a drainage trough according to a preferred embodiment of the present invention;

[0040] Figure 5 This is a three-dimensional structural diagram of a drainage trough according to a preferred embodiment of the present invention;

[0041] Figure 6 This is a schematic diagram of a filter plate structure according to a preferred embodiment of the present invention;

[0042] Figure 7 This is a schematic diagram of a rainwater inlet structure according to a preferred embodiment of the present invention.

[0043] Figure 8 This is a schematic diagram of a drainage cover structure according to a preferred embodiment of the present invention;

[0044] Figure 9 This is a schematic diagram of the first assembly structure according to a preferred embodiment of the present invention;

[0045] Figure 10 This is a schematic diagram of the second assembly structure according to a preferred embodiment of the present invention;

[0046] Figure 11 This is a cross-sectional view of the drainage cover plate when the second assembly of a preferred embodiment of the present invention is floating.

[0047] Figure Labels

[0048] 1. Rainwater inlet; 10. Drainage channel; 11. Drainage cover; 110. First assembly; 1101. Support; 1102. First dividing rib; 111. Second assembly; 1111. Mating part; 1112. Second dividing rib; 1113. Combined boss; 1114. Combined recess; 112. Lifting component; 1121. Height limiting component; 1122. Side limiting component; 113. Support component;

[0049] 2. Drainage pipe; 21. Connecting parts; 22. Settlement plate;

[0050] 3. Sedimentation tank; 31. Filter plate; 310. First main body; 311. Second main body; 312. First filter hole; 313. Second filter hole; 314. Connecting groove; 315. Assembly parts; 32. Placement parts;

[0051] 4. Inspection wells. Detailed Implementation

[0052] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0053] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0054] Furthermore, in the description of this invention, it should be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," 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 invention 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 invention.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a communication 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 invention according to the specific circumstances.

[0056] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," "specific example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] During rainfall, rainwater mixed with leaves, garbage, and other debris flows into the drain pipes through the storm drains, while some of it gets stuck in the drain inlets. Firstly, the garbage and debris entering the drain pipes accumulate inside, reducing the cross-sectional area of ​​the pipes and thus decreasing the maximum flow rate. This affects drainage efficiency during heavy rains and can lead to urban flooding. Secondly, the debris accumulated in the drain pipes decomposes in the damp environment, producing unpleasant odors and promoting bacterial growth, thus affecting the water quality. Furthermore, the limitations of the pipe system make it difficult to clean the accumulated debris.

[0058] According to one embodiment of the present invention, such as Figure 1 , Figure 2 , Figure 3 As shown, to prevent debris accumulation in the pipes, this invention provides a rainwater and sewage separation road, including rainwater inlets 1 on both sides of the road and drainage pipes 2 located below the road. Sedimentation tanks 3 are spaced apart on the drainage pipes 2, with the top surface of the sedimentation tanks 3 flush with the bottom surface of the drainage pipes 2. As rainwater carries debris such as leaves and garbage, it gradually settles as it flows through the drainage pipes 2. Consequently, when the debris passes through the sedimentation tanks 3, it settles into them, causing the leaves, garbage, and other debris to accumulate, thus reducing or preventing debris accumulation in the drainage pipes 2. To facilitate cleaning the debris accumulated in the sedimentation tanks 3, inspection wells 4 are provided above the sedimentation tanks 3. As debris continuously accumulates in the sedimentation tanks 3, the debris accumulation capacity of the sedimentation tanks 3 gradually weakens. At this point, the inspection wells 4 can be opened periodically to check the debris accumulation in the sedimentation tanks 3. When excessive debris accumulates in the sedimentation tanks 3, the debris in the sedimentation tanks 3 can be cleaned.

[0059] Optionally, an indicator scale can be installed on the side wall of the sedimentation tank 3. The scale on the indicator scale indicates the maximum height of debris accumulation in the sedimentation tank 3, which can facilitate the staff to make timely and effective judgments on the accumulation and cleaning of debris in the sedimentation tank 3.

[0060] Optional, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the top of the drain pipe 2 has a connector 21, which is located above the sedimentation tank 3 and extends axially along the drain pipe 2. Specifically, the connector 21 can be a hinge, to which a settling plate 22 is connected. The settling plate 22 hangs naturally under gravity, allowing its surface to cover the longitudinal section of the drain pipe 2. The settling plate 22 has pores that allow water to flow through it. The projected surface of the settling plate 22 covers the longitudinal section of the drain pipe 2, allowing water to pass through it. It is understood that when water flows through the settling plate 22, debris such as silt, leaves, and garbage carried in the water will be obstructed by the settling plate 22. Figure 1 As shown, when the water flow is small, the settling plate 22 remains naturally hanging down under the action of gravity. Debris in the water flow, upon contact with the settling plate 22, settles more quickly under the influence of gravity. The settling plate 22 is connected to the connector 21 located above the sedimentation tank 3, ensuring that the settling debris falls precisely into the sedimentation tank 3, thus achieving the separation of debris in the water flow and providing a certain degree of filtration to the water flowing through the settling plate 22. Figure 2As shown, when the water flow is relatively large, the water flows over the settling plate 22 and encounters resistance from it, causing the settling plate 22 to rotate along the hinge. This means that the surface of the settling plate 22 and the longitudinal section of the drain pipe 2 form an angle. The size of this angle is affected by the water flow velocity; the greater the flow velocity, the larger the angle, and vice versa. At this time, debris in the water, when passing over the settling plate 22, settles under the influence of gravity and falls into the sedimentation tank 3. Figure 3 As shown, during heavy rain, the water flow increases, and the water velocity in drainage pipe 2 is very fast. Debris in the water does not easily settle. Under the action of the water flow, the angle between the surface of the settlement plate 22 and the longitudinal section of drainage pipe 2 further increases. This means that the projected surface of the settlement plate 22 is insufficient to cover the longitudinal section of drainage pipe 2. To avoid urban flooding, drainage pipe 2 tends to discharge floodwater. This further increase in angle provides a larger channel for water flow, ensuring smooth water passage. Simultaneously, it also prevents a decrease in the flood discharge capacity of drainage pipe 2 due to debris clogging the settlement plate 22.

[0061] Optionally, the length of the settling plate 22 is greater than the straight-line distance from the connector 21 to the top surface of the sedimentation tank 3, but less than the maximum distance from the connector 21 to the top surface of the sedimentation tank 3. Specifically, the length of the settling plate 22 is greater than the straight-line distance from the connector 21 to the top surface of the sedimentation tank 3, allowing the settling plate 22 to extend into the sedimentation tank 3 in its natural downward state. This ensures that even when the water flow in the drain pipe 2 is small, it can still pass through the settling plate 22, thus filtering out impurities in the water flow and causing them to settle into the sedimentation tank 3. The length of the settling plate 22 is less than the maximum distance from the connector 21 to the top surface of the sedimentation tank 3, i.e., the distance from the connector 21 to the edge of the sedimentation tank 3. This allows the settling plate 22 to rotate at a larger angle when the water flow is large, preventing it from getting stuck at the edge of the sedimentation tank 3 and thus affecting the flow of water during heavy rain.

[0062] According to one embodiment of the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, when debris such as leaves, garbage, and silt accumulates in the sedimentation tank 3, bacteria can easily grow and odors can be produced in the humid environment. To alleviate the humid environment of the sedimentation tank 3, a filter plate 31 is installed in the sedimentation tank 3. The filter plate 31 is spaced from the bottom of the sedimentation tank 3. When debris accumulates in the sedimentation tank 3, the water in the debris can seep into the bottom of the sedimentation tank 3 through the filter plate 31. The bottom of the sedimentation tank 3 is connected to a connecting pipe, which is connected to the outlet to discharge the water that falls into the bottom of the sedimentation tank 3 through the filter plate 31.

[0063] Optionally, the filter plate 31 is an inverted "V" shape, and the side wall of the sedimentation tank 3 has a placement member 32. The lower end of the filter plate 31 overlaps the placement member 32. The placement member 32 can be a protrusion protruding from the side wall of the sedimentation tank 3. By utilizing the inverted "V" shape structure and the support of the placement member 32, a stable triangular structure is formed, thereby reducing the filter plate 31 from flipping and moving under the pressure of debris and the impact of water flow, thus losing the filtering effect of the filter plate 31.

[0064] Optional, such as Figure 6 As shown, the filter plate 31 includes a first body 310 and a second body 311. The first body 310 has a first filter hole 312, and the second body 311 has a second filter hole 313. The diameter of the second filter hole 313 is smaller than that of the first filter hole 312. The filter plate 31 adopts a double-layer structure. By using the different diameters of the filter holes in each layer, the larger diameter of the upper layer can improve the filtration efficiency, while the smaller diameter of the second layer can block impurities. At the same time, due to the inverted "V" shape of the filter plate 31, the surface of the filter plate 31 is inclined, thereby preventing the formation of a water film on the filter hole due to water tension. A water film would block the flow of water, thus improving the filtration capacity of the filter plate 31.

[0065] Optionally, the first body 310 and the second body 311 adopt a detachable structure. One of the first body 310 and the second body 311 has a connecting groove 314, and the other has an assembly 315 that mates with the connecting groove 314. The assembly 315 can be a protrusion that mates with the connecting groove 314. By disassembling the first body 310 and the second body 311, debris remaining between the first body 310 and the second body 311 can be cleaned.

[0066] According to one embodiment of the present invention, such as Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11As shown, the rainwater inlet 1 includes a drainage channel 10 and a drainage cover 11 covering the drainage channel 10. The drainage cover 11 is a rainwater grate. Specifically, the drainage cover 11 adopts a combined structure, which includes a first assembly 110 and a second assembly 111 connected to the first assembly 110. The first assembly 110 has support portions 1101 at both ends, and multiple first dividing ribs 1102 are connected between the support portions 1101. The second assembly 111 has mating portions 1111 at both ends, and multiple second dividing ribs are connected between the mating portions 1111. The multiple first dividing ribs 1102 and / or multiple second dividing ribs cooperate to create drainage channels. That is to say, the drainage cover 11 has two usage states. One usage state is the combined state of the first assembly 110 and the second assembly 111, that is, when the first assembly 110 and the second assembly 111 are combined, it is used as a rainwater grate. Another usage configuration is to separate the second assembly 111, allowing the first assembly 110 to be used independently as a rainwater grate. Furthermore, when the first assembly 110 and the second assembly 111 are in the assembled state, the first dividing rib 1102 intersects with the second dividing rib, and the gap between the first dividing rib 1102 and the second dividing rib serves as a drainage channel for rainwater to flow into the drainage trough 10. When the first assembly 110 and the second assembly 111 are in the separated state, the gap between the first dividing ribs 1102 can serve as a drainage channel for water to flow into the drainage trough 10. In use, to prevent leaves, garbage and other debris from clogging the drainage channel of the drainage cover 11, the first assembly 110 and the second assembly 111 can be separated, that is, the second assembly 111 can be removed. After the second assembly 111 is removed, the drainage channel originally separated by the first dividing rib 1102 and the second dividing rib 1112 becomes a drainage channel separated only by the first dividing rib 1102, thereby increasing the width of the drainage channel. After the width of the drainage channel is increased, the passage surface of leaves, garbage and other debris can be increased, thereby reducing or avoiding the clogging of the drainage channel by leaves, garbage and other debris.

[0067] Optional, such as Figure 9 , Figure 10 As shown, one of the support part 1101 and the mating part 1111 has a combined boss 1113, and the other has a combined recess 1114 that mates with the combined boss 1113. The mating of the combined boss 1113 and the combined recess 1114 allows the support part 1101 and the mating part 1111 to be assembled into one unit, thereby facilitating the assembly of the first assembly 110 and the second assembly 111.

[0068] Optionally, a lifting member 112 is provided below the second assembly 111. The bottom of the lifting member 112 abuts against the bottom of the drainage ditch 10. The lifting member 112 is a float, which can move upward under the buoyancy of rainwater in the drainage ditch 10 when there is rainwater in the drainage ditch 10. A support member 113 is connected between the lifting member 112 and the second assembly 111. During the upward movement of the lifting member 112, the second assembly 111 can be moved upward along with the lifting member 112, thereby separating the first assembly 110 and the second assembly 111. The separated rainwater channel is enlarged, thereby increasing the passage surface for leaves, garbage, and other debris, thus reducing or avoiding blockage of the drainage channel by leaves, garbage, and other debris. Specifically, the support member 113 is a support rod, which can be single or multiple. When multiple support rods are used in combination, its stability can be improved.

[0069] Understandably, since the rainwater entering the drainage channel 10 is constantly in motion, the float will undulate due to the moving rainwater. That is, under the buoyancy of the flowing rainwater, the float moves up and down, and the first assembly 110, driven by the float, will also exhibit the same up-and-down movement. In this state, when leaves, garbage, and other debris flow through the drainage channel, the up-and-down movement of the second assembly 111 will cause the width of the drainage channel to dynamically change, thus preventing leaves, garbage, and other debris from clogging the drainage channel. Even if the drainage channel is blocked, the blockage will be cleared by the water flow during the up-and-down movement of the second assembly 111 and under the pressure of the water flow, thereby reducing the possibility of blockage.

[0070] Optionally, to make the second assembly 111 more easily float under the agitation of the pontoon, the second assembly 111 and the support 113 are made of lightweight materials. Specific lightweight materials can be high-molecular polymers such as PVC and PET, or lightweight metal alloys such as aluminum alloys.

[0071] Optional, such as Figure 8As shown, when the liquid level in the drainage trough 10 is too high, the float will rise higher, and the second assembly 111 will rise higher as well. To limit the buoyancy of the second assembly 111, a height limiting member 1121 is provided on the float to limit its maximum floating height. Specifically, the height limiting member 1121 is a limiting rod connected to the drainage trough 10 and extending above the float. Furthermore, since the float may exhibit irregular movement due to buoyancy and water flow, a side limiting member 1122 is provided around the float to limit its lateral and longitudinal movement. Specifically, the side limiting member 1122 is a limiting plate located on the side of the float, restricting its movement to vertical.

[0072] Optionally, one of the lifting component 112 and the second assembly 111 can be detachably connected to the support component 113, and the other of the two can be integrally formed with the support component 113. Specifically, the support component 113 can be detachably connected to the lifting component 112 or to the first assembly 110, thereby facilitating the connection between the lifting component 112 and the second assembly 111.

[0073] Optionally, a guide slope is formed at the connection between the combined boss 1113 and the combined recess 1114. The guide slope facilitates the reset of the first assembly 110 and the second assembly 111. When there is no water flow in the drainage trough 10, the lifting member 112 drives the second assembly 111 to fall back to its original position. During the falling process, the second assembly 111 slides along the guide slope, thereby guiding the reset of the second assembly 111. Furthermore, the guide slope has a smooth coating, which makes the surface of the guide slope smoother, thereby reducing the surface friction of the guide slope. Under the action of the gravity of the lifting member 112 and the support member 113, the second assembly 111 is more likely to return to its initial position.

[0074] Optionally, the support 1101 has multiple connection holes, and the drainage groove 10 has connection bolts corresponding to the connection holes. The connection holes and connection bolts cooperate to fix the first assembly 110 onto the drainage groove 10.

[0075] It should be noted that the rainwater in the drainage trough 10 flows into the drainage pipe 2. In the rainwater inlet 1 of this invention, to prevent debris from clogging the inlet 1, the second assembly 111 moves up and down under buoyancy, making it easier for debris to flow through the inlet 1 into the drainage pipe 2, thus preventing blockage and improving the drainage efficiency of the inlet 1. After the debris enters the drainage pipe 2, it is filtered by the settling plate 22 and settles into the sedimentation tank 3. This invention combines the rainwater inlet 1, the settling plate 22, and the filter plate 31. On the one hand, it prevents debris carried by rainwater from clogging the rainwater inlet 1 during rainfall, thereby improving the drainage efficiency of the inlet 1 and avoiding urban road flooding caused by blockage, thus ensuring driving safety. On the other hand, it prevents the accumulation of debris entering the drainage pipe 2 in the rainwater pipe, ensuring that the drainage performance of the drainage pipe 2 is not affected. Simultaneously, the inspection well 4 facilitates timely cleaning of debris in the sedimentation tank 3. In addition, the filter plate 31 can drain the water in the sedimentation tank 3, thereby reducing the decay of debris in the sedimentation tank 3 in a humid environment.

[0076] This invention also discloses a construction method for a rainwater and sewage separation road, comprising the following steps:

[0077] S1. Pipeline layout design: Based on the topography, hydrology, and soil sample characteristics, the direction, diameter, and burial depth of the pipeline are designed.

[0078] S2. Based on the pipeline layout design, fabricate prefabricated components including drainage pipe 2, rainwater inlet 1, and sedimentation tank 3;

[0079] S3. Road excavation: According to the pipeline layout design, excavate the foundation of drainage pipe 2, rainwater inlet 1 and sedimentation tank 3.

[0080] S4. Anti-settlement treatment: Backfill the excavated foundation with soil, compact it, and then cover the soil with a layer of sand and gravel.

[0081] S5. Pipe placement: Place the drain pipe 2, rainwater inlet 1, and sedimentation tank 3 on the foundation. When placing the drain pipe 2, an expansion joint needs to be reserved.

[0082] S6. Backfill and level the road surface. After the pipelines are laid, backfill the soil layer, compact it, and then cover the soil layer with a crushed stone base layer.

[0083] S7. Road paving: Concrete or asphalt pavement is laid on top of a crushed stone base.

[0084] For any parts not mentioned in this invention, existing technologies can be used or referenced.

[0085] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0086] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A rainwater and sewage separation road, comprising rainwater inlets located on both sides of the road and drainage pipes located beneath the road, characterized in that, The drainage pipe is provided with sedimentation tanks at intervals, and inspection wells are provided above the sedimentation tanks. The top of the drainage pipe has a connector, which is located above the sedimentation tanks. A settling plate is connected to the connector. The settling plate has pores, and the projected surface of the settling plate covers the longitudinal section of the drainage pipe so that the water in the drainage pipe can pass through the settling plate. A filter plate is connected inside the sedimentation tank. The filter plate is spaced from the bottom of the sedimentation tank. A connecting pipe is connected to the bottom of the sedimentation tank and connects to the outlet to discharge the water that falls into the bottom of the sedimentation tank after passing through the filter plate. The rainwater outlet includes a drainage channel and a drainage cover plate covering the drainage channel. The drainage cover plate includes a first assembly and a second assembly connected to the first assembly. A lifting member is provided below the second assembly. The bottom of the lifting member abuts against the bottom of the drainage channel. A support member is connected between the lifting member and the second assembly so that the second assembly can move up and down by the up and down movement of the lifting member.

2. The rainwater and sewage separation road according to claim 1, characterized in that, The settling plate is rotatably connected to the connector, and the length of the settling plate is greater than the straight-line distance from the connector to the top surface of the sedimentation tank, and / or the length of the settling plate is less than the maximum distance from the connector to the top surface of the sedimentation tank.

3. The rainwater and sewage separation road according to claim 1, characterized in that, The filter plate is inverted "V" shaped, and there is a placement component on the side wall of the sedimentation tank. The lower end of the filter plate overlaps the placement component.

4. The rainwater and sewage separation road according to claim 3, characterized in that, The filter plate includes a first body and a second body. The first body has a first filter hole, and the second body has a second filter hole. The diameter of the second filter hole is smaller than that of the first filter hole.

5. The rainwater and sewage separation road according to claim 4, characterized in that, One of the first body and the second body has a connecting groove, and the other body has an assembly that mates with the connecting groove.

6. The rainwater and sewage separation road according to claim 1, characterized in that, The first assembly has support portions at both ends, and a plurality of first dividing ribs are connected between the support portions. The second assembly has mating portions at both ends, and a plurality of second dividing ribs are connected between the mating portions. The plurality of first dividing ribs and / or the plurality of second dividing ribs cooperate to create drainage channels.

7. The rainwater and sewage separation road according to claim 6, characterized in that, One of the supporting part and the mating part has a combined boss, and the other has a combined recess that mates with the combined boss.

8. The rainwater and sewage separation road according to claim 7, characterized in that, The lifting component is a pontoon, and a height limiting component is provided on the lifting component to limit the maximum floating height of the pontoon. The lifting component has a side limiting component in its circumferential direction to limit the lateral and longitudinal movement of the pontoon.

9. A construction method for a rainwater and sewage separation road according to any one of claims 1-8, characterized in that, Includes the following steps: S1. Pipeline layout design: Based on the topography, hydrology, and soil sample characteristics, the direction, diameter, and burial depth of the pipeline are designed. S2. Based on the pipeline layout design, fabricate prefabricated components for drainage pipes, rainwater inlets, and sedimentation tanks; S3. Road excavation: According to the pipeline layout design, excavate the foundation for drainage pipes, rainwater inlets, and sedimentation tanks. S4. Anti-settlement treatment: Backfill the excavated foundation with soil, compact it, and then cover the soil with a layer of sand and gravel. S5. Pipe placement: Place the drainage pipe, rainwater inlet, and sedimentation tank on the foundation. Expansion joints need to be reserved when placing the drainage pipe. S6. Backfill and level the road surface. After the pipelines are laid, backfill the soil layer, compact it, and then cover the soil layer with a crushed stone base layer. S7. Road paving: Concrete or asphalt pavement is laid on top of a crushed stone base.

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