Sponge city rainwater diversion structure and rainwater diversion technology

Abstract

The invention relates to the technical field of sponge city rainwater utilization, in particular to a sponge city rainwater diversion structure and a rainwater diversion technology.The sponge city rainwater diversion structure comprises a pavement layer, a roadbed layer is laid at the bottom of the pavement layer, and a green belt is arranged at the position, close to the edge, of the surface of the pavement layer; the interior of the green belt is filled with a soil layer extending into the roadbed layer, a drainage groove is formed in the position, close to the pavement layer, in the roadbed layer in the horizontal direction, and a drainage well and an operation well which are communicated with the interior of the drainage groove are formed in the surface of the pavement layer; rainwater in a municipal road can be effectively guided, recycled, stored and reutilized, the rainwater utilization rate is increased, meanwhile, the construction difficulty is reduced, an existing municipal drainage pipe network can be improved and additionally arranged, the municipal drainage pipe network is suitable for application and popularization, meanwhile, through the adjustable movable sleeve assembly, the municipal drainage pipe network is suitable for being used in different rain conditions, and the practicability is high. And water can be stored as required, and the drainage efficiency of the drainage system can be improved under special conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of rainwater utilization in sponge cities, and in particular to a rainwater diversion structure and a rainwater diversion process in a sponge city. Background Art

[0002] Sponge city is a new generation of urban stormwater management concept, which means that the city can adapt to environmental changes and deal with natural disasters caused by rainwater like a sponge. The internationally accepted term is "low-impact development rainwater system construction". When it rains, it absorbs, stores, infiltrates and purifies water. When needed, the stored water is released and used to achieve the free migration of rainwater in the city. Starting from the ecosystem service, the construction of water ecological infrastructure across scales and combining multiple specific technologies to build water ecological infrastructure are the core of sponge city. In the construction of sponge city, the diversion, recycling and utilization of rainwater are important components;

[0003] In the current process of rainwater diversion and recycling in the sponge city system, the diversion and recycling of rainwater in sponge cities is widely used in residential areas, shopping malls and other places. This is mainly because the space in residential areas, shopping malls and other places is small. It only needs to build a reservoir and supporting rainwater recovery, filtration and external discharge pipelines to achieve the diversion, recycling and utilization of rainwater. However, for outdoor places such as municipal roads and highway greening, due to the long length, the traditional reservoir construction has limited water storage capacity and high cost. A small amount of water storage structure cannot meet the water demand of outdoor roads and supporting highway greening. Therefore, in municipal construction, the diversion and recycling of rainwater in sponge cities is not sufficient. The effective utilization rate is small. At the same time, since the existing municipal road system is usually relatively complete, many improved water storage structures have complicated construction processes, occupy a large amount of roads, have a large impact, and are costly, which also limits the promotion and application of new technologies. Therefore, a sponge city rainwater diversion structure and rainwater diversion process are proposed, which can effectively divert, recycle, store and reuse rainwater in municipal roads, improve the utilization rate of rainwater in outdoor buildings such as municipal roads and highway greening, and reduce the difficulty of construction. It can improve and add to the existing municipal drainage pipeline network, reduce the impact on road traffic as well as the cost of construction and use, and is suitable for promotion and application. Summary of the invention

[0004] In response to the problems in the prior art, the present invention provides a sponge city rainwater diversion structure and a rainwater diversion process, which can effectively divert, recycle, store and reuse rainwater in municipal roads, improve the utilization rate of rainwater in outdoor buildings such as municipal roads and highway greening, and reduce the difficulty of construction. It can improve and add to the existing municipal drainage pipeline network, reduce the impact on road traffic as well as construction and use costs, and is suitable for promotion and application.

[0005] The technical solution adopted by the present invention to solve the technical problem is a sponge city rainwater diversion structure and a rainwater diversion process, comprising a pavement layer, a road base layer is laid at the bottom of the pavement layer, a green belt is arranged near the edge of the surface of the pavement layer, the inside of the green belt is filled with a soil layer extending to the inside of the road base layer, a drainage groove is opened in the inside of the road base layer in a horizontal direction near the pavement layer, and a drainage well and an operation well connected to the inside of the drainage groove are opened on the surface of the pavement layer;

[0006] A water storage pipe is laid horizontally inside the drainage ditch, and a discharge pipe is arranged at intervals on the surface of the water storage pipe facing the inside of the green belt. A diversion pipe is arranged at the end of the discharge pipe away from the water storage pipe. An inclined pipe inserted into the soil layer is installed obliquely on the surface of the diversion pipe facing the green belt. A diffuse flow hole is opened at the end of the inclined pipe located in a section inside the soil layer, and a water collecting seat is arranged at the top of the water storage pipe and at the corresponding position of the drainage well.

[0007] By adopting the above technical scheme, a water storage pipe structure is laid inside the existing drainage ditch of the municipal road, and the water storage pipe is horizontally installed inside the drainage ditch. In rainy weather, rainwater falling on the surface of the pavement layer will be discharged into the water collection well. The rainwater entering the water collection well will be diverted, with one part directly discharged from the drainage ditch, and the other part entering the water storage pipe after being filtered. The filtered rainwater is stored in the water storage pipe. During consecutive sunny days, the rainwater in the water storage pipe can pass through the discharge pipe and the diversion pipe and then be discharged into the soil layer through the inclined pipe, thereby realizing water replenishment for green plants inside the green belt.

[0008] Specifically, the bottom of the water collecting seat is fixedly connected to a discharge pipe installed on the top of the water storage pipe, and the interior of the discharge pipe is communicated with the interior of the water storage pipe, a pad is laid at the bottom of the water collecting seat, an activated carbon filter layer is laid on the top of the pad, a sand and gravel filter layer is laid on the top of the activated carbon filter layer, and the top of the sand and gravel filter layer is covered with a mesh layer.

[0009] By adopting the above technical solution, a multi-layer filtering structure is provided inside the water collecting seat. The rainwater falling to the top of the water collecting seat is firstly filtered by the sand and gravel filter layer to remove larger granular impurities mixed in the rainwater, and then filtered again by the activated carbon filter layer to remove fine impurities in the water, thereby achieving the filtration of rainwater. The pad structure supports and prevents leakage of each filter layer, and the covering mesh layer limits the position of each filter layer.

[0010] Specifically, a water reservoir is pre-buried inside the roadbed at the bottom of the operating well, an overflow pipe connected to the inside of the water reservoir is provided on the surface of the water pipe away from the discharge pipe, a water pump is installed at the bottom of the water reservoir, a water supply plug is provided on the surface of the green belt, and the discharge end of the water pump is connected to the water supply end of the water supply plug.

[0011] By adopting the above technical scheme, water reservoirs are arranged at intervals as needed in the drainage system, and the excess water inside the water storage pipe will be discharged from the overflow pipe into the water storage tank for storage. When it is necessary to replenish water for the sprinkler truck, the water pump can be turned on to pump the water inside the water storage tank out through the water supply plug, thereby realizing the secondary utilization of rainwater. Compared with water storage pipes, water storage tanks can store more water and supply water for different functions, which expands the utilization direction of rainwater.

[0012] Specifically, a movable sleeve is provided at the connection point of the end of the water storage pipe inside the operation well, and the movable sleeve is inserted into the outer periphery of the water storage pipe, a tooth plate is welded at the middle position of the top of the movable sleeve, a fixed frame is fixedly connected to the inside of the operation well in the horizontal direction, and shaft sleeves corresponding to the positions are installed inside the fixed frame, a rotating rod is installed vertically between the shaft sleeves, and a gear meshing with the tooth plate is sleeved on the outer periphery of the rotating rod, and a rotating ring for facilitating the rotation of the gear is installed on the top of the rotating rod.

[0013] By adopting the above technical scheme, the movable sleeve connects the ends of two adjacent groups of water storage pipes in the water storage state, ensuring the airtightness and normal water storage function of the water storage pipe connection. When continuous rainfall causes a large drainage pressure, the rotating ring is turned inside the operating well to drive the rotation of the rotating rod and the gear. When the gear rotates, it will drive the movement of the tooth plate, thereby causing the movable sleeve to move horizontally at the end connection of the water storage pipe. In the drainage state, the movable sleeve moves toward the outer periphery of the water storage pipe on one side, so that the end connection of the water storage pipe is disconnected and exposed. At this time, rainwater entering the drainage trough and the water storage pipe will be directly discharged. In this state, the water storage pipe only plays a role in drainage and diversion, and no water storage treatment is performed. In this way, the drainage efficiency is affected by the occupation of the internal space of the drainage trough by the water storage pipe under continuous precipitation, thereby ensuring the drainage efficiency of the drainage system under continuous precipitation.

[0014] Specifically, valves for controlling the opening and closing of the discharge pipes are installed inside, fixed seats are installed at intervals at the bottom end of the drainage trough, arc-shaped support rings are welded on the tops of the fixed seats, and the bottom of the water storage pipe is attached to the top of the arc-shaped support rings.

[0015] By adopting the above technical solution, the opening and closing of the discharge pipe can be regulated by the valve. The valve can be a manual valve or a solenoid valve according to the usage requirements. The fixing seat is fixed to the bottom end of the drain trough by fasteners, and the water storage pipe is supported and fixed by the arc-shaped support ring on the top.

[0016] Specifically, the activated carbon filter layer is filled with activated carbon, the gravel filter layer is filled with gravel, the mesh layer is made of metal mesh, and the backing plate is made of perforated metal plate.

[0017] By adopting the above technical solution and through the cooperation of the filter layer structures, it is possible to filter and process rainwater, so that the collected and stored rainwater can meet the subsequent water use standards.

[0018] Specifically, a groove is opened at the bottom of the inner wall of the water reservoir and the water pump is installed inside the groove, and a cable groove is opened in the horizontal direction at the bottom end of the inner wall of the water reservoir.

[0019] By adopting the above technical solution, the groove structure allows the water inside the water reservoir to flow into the groove. The water pump is located inside the groove to ensure that it can discharge as much rainwater as possible from the water reservoir. The cable trough structure is used to route the water pump power cord. The water pump power cord passes through the cable trough and is connected to the external power supply equipment. A sealing assembly is provided at the end of the cable trough to prevent water from entering the cable trough.

[0020] Specifically, a guide rail is installed at the bottom of the inner wall of the operating well, a slider inserted into the guide rail is fixedly connected to the bottom of the movable sleeve, a sealing ring is embedded in one end of the movable sleeve, and a conical sealing ring is embedded in the other end of the movable sleeve.

[0021] By adopting the above technical solution, the guide rail cooperates with the slider structure to limit the movable sleeve so that it can only move in the horizontal direction. The sealing ring cooperates with the conical sealing ring to ensure the sealing of the connection between the movable sleeve and the water storage pipe after it moves into place.

[0022] Specifically, rainwater diversion goes through the following steps:

[0023] S1. In normal rainy weather, rainwater falls on the surface of the road surface and flows into the drainage well through the road surface drainage slope. The rainwater that enters the drainage well falls down. Part of the rainwater falls directly into the drainage trough and flows into the drainage network along the drainage trough. The other part of the rainwater falls on the top of the water collection seat. The rainwater that falls on the top of the water collection seat will be filtered by the gravel filter layer and the activated carbon filter layer in turn. The filtered rainwater is then discharged into the water storage pipe through the discharge pipe. The larger impurities filtered by the gravel filter layer will be discharged from both sides of the top of the water collection seat to the inside of the water collection trough under the scouring of rainwater. The water storage pipe is built inside the existing drainage trough. Part of the filtered rainwater enters the water storage pipe to be collected and stored. At the same time, part of the rainwater that enters the water storage pipe will be discharged into the water storage tank built at intervals through the overflow pipe;

[0024] S2. When the weather is dry, the soil layer inside the green belt is in a state of water shortage. The valve can be controlled to open, and part of the rainwater inside the water storage pipe is discharged from the discharge pipe to the diversion pipe, and then discharged from the inclined pipe to the soil layer, so as to wet and humidify the soil layer inside the green belt, increase the water content, and ensure that the green plants inside the green belt have sufficient water. At the same time, when a sprinkler truck is needed to clean the road surface, the water pump can be turned on to discharge the filtered rainwater collected in the water storage tank through the water supply plug and provide it to the sanitation department for cleaning water, thereby improving the utilization rate of water resources.

[0025] S3. During long-term heavy rain, under continuous rainfall conditions, the rotating ring can be turned inside the operating well to drive the rotation of the rotating rod and the gear. When the gear rotates, it will drive the movement of the tooth plate, thereby causing the movable sleeve to move horizontally at the end connection of the water storage pipe. In the water storage state, the movable sleeve connects the ends of two adjacent groups of water storage pipes to ensure airtightness and normal water storage. In the drainage state, the movable sleeve moves to the outer periphery of the water storage pipe on one side, so that the connection at the end of the water storage pipe is disconnected and exposed. At this time, rainwater entering the drainage trough and the inside of the water storage pipe will be directly discharged. In this state, the water storage pipe only plays a role in drainage and diversion, and no water storage treatment is performed. In this way, the drainage efficiency is affected due to the occupation of the internal space of the drainage trough by the water storage pipe in the case of continuous precipitation, thereby ensuring the drainage efficiency of the drainage system in the case of continuous precipitation.

[0026] By adopting the above-mentioned technical scheme, rainwater in municipal roads can be effectively diverted, recovered, stored and reused, and the utilization rate of rainwater in outdoor buildings such as municipal roads and highway greening can be improved. At the same time, the difficulty of construction can be reduced, and the existing municipal drainage pipeline network can be improved and added to reduce the impact on road traffic as well as construction and use costs, meet different weather conditions, and be suitable for promotion and application.

[0027] Beneficial effects of the present invention:

[0028] (1) The present invention discloses a rainwater diversion structure and process for a sponge city. A water storage pipe structure is laid inside an existing drainage ditch on a municipal road. The water storage pipe is installed horizontally inside the drainage ditch. In rainy weather, rainwater falling on the surface of the pavement layer will be discharged into a water collection well. The rainwater entering the water collection well will be diverted. One part will be directly discharged from the drainage ditch, and the other part will enter the water storage pipe after being filtered. The filtered rainwater will be stored in the water storage pipe. In continuous sunny days, the rainwater in the water storage pipe can be discharged into the soil layer through a discharge pipe and a diversion pipe through an inclined pipe, thereby providing water replenishment for green plants in the green belt and improving the rainwater utilization rate in outdoor buildings such as municipal roads and highway greening. At the same time, the existing municipal drainage pipe network can be improved and added, reducing the construction difficulty and cost, reducing the impact on road traffic, and improving the rainwater utilization rate.

[0029] (2) The present invention discloses a rainwater diversion structure and process for a sponge city. In the drainage system, water storage tanks are arranged at intervals as required. Excess water inside the water storage pipe is discharged from the overflow pipe into the water storage tank for storage. When it is necessary to replenish water for the sprinkler truck, the water pump can be turned on to pump the water inside the water storage tank out through the water supply plug, thereby realizing the secondary utilization of rainwater. Compared with water storage pipes, water storage tanks can store more water and supply water to entities with different functions, thereby expanding the utilization direction of rainwater and further improving the utilization rate of rainwater.

[0030] (3) The present invention discloses a rainwater diversion structure and a rainwater diversion process for a sponge city. In the water storage state, a movable sleeve connects the ends of two adjacent groups of water storage pipes to ensure the airtightness and normal water storage function of the water storage pipe connection. When continuous rainfall causes a large drainage pressure, the rotating ring is turned inside the operating well to drive the rotation of the rotating rod and the gear. When the gear rotates, it drives the movement of the tooth plate, thereby causing the movable sleeve to move horizontally at the end connection of the water storage pipe. In the drainage state, the movable sleeve moves toward the outer periphery of the water storage pipe on one side, so that the end connection of the water storage pipe is disconnected and exposed. At this time, rainwater entering the drainage trough and the water storage pipe will be directly discharged. In this state, the water storage pipe only plays a role in drainage and diversion, and no water storage treatment is performed. In this way, the drainage efficiency is affected by the occupation of the internal space of the drainage trough by the water storage pipe under continuous rainfall, thereby ensuring the drainage efficiency of the drainage system under continuous rainfall. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0032] Figure 1 It is a schematic diagram of the top structure of the road surface of the present invention;

[0033] Figure 2 It is a schematic diagram of the water storage pipe and the inclined pipe structure of the present invention;

[0034] Figure 3 It is a schematic diagram of the interior of the water storage tank and the water storage pipe installation structure of the present invention;

[0035] Figure 4 It is a schematic diagram of the adjustment structure of the movable sleeve inside the operating well of the present invention;

[0036] Figure 5 It is a schematic diagram of the water collecting seat and its internal filtering structure of the present invention;

[0037] Figure 6 It is a schematic diagram of the oblique tube structure of the present invention;

[0038] In the figure: 1, pavement layer; 101, road base layer; 2, green belt; 201, soil layer; 3, drainage trough; 301, drainage well; 302, operation well; 4, water storage pipe; 401, discharge pipe; 402, valve; 403, diversion pipe; 404, inclined pipe; 405, diffuser hole; 406, arc support ring; 407, fixed seat; 5, water collection seat; 501, discharge pipe; 502, activated carbon filter layer; 503, sand Stone filter layer; 504, mesh layer; 505, pad; 6, water reservoir; 601, overflow pipe; 602, groove; 603, water pump; 604, water supply plug; 605, cable trough; 7, movable sleeve; 701, guide rail; 702, slider; 703, sealing ring; 704, conical sealing ring; 705, tooth plate; 706, fixing frame; 707, bushing; 708, rotating rod; 709, gear; 710, swivel. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0040] Embodiment 1:

[0041] The technical solution adopted by the present invention to solve the technical problem is a sponge city rainwater diversion structure and a rainwater diversion process, comprising a pavement layer 1, a road base layer 101 is laid at the bottom of the pavement layer 1, a green belt 2 is arranged near the edge of the surface of the pavement layer 1, the green belt 2 is filled with a soil layer 201 extending to the inside of the road base layer 101, a drainage groove 3 is opened in the road base layer 101 in a horizontal direction near the pavement layer 1, and a drainage well 301 and an operation well 302 connected to the inside of the drainage groove 3 are opened on the surface of the pavement layer 1;

[0042] A water storage pipe 4 is laid horizontally inside the drainage ditch 3, and a discharge pipe 401 is arranged at intervals on the surface of the water storage pipe 4 facing the inside of the green belt 2. A diversion pipe 403 is arranged at a section of the end of the discharge pipe 401 away from the water storage pipe 4. An inclined pipe 404 inserted into the soil layer 201 is obliquely installed on the surface of the diversion pipe 403 facing the green belt 2. A diffuser hole 405 is opened at the end of the inclined pipe 404 located in a section inside the soil layer 201, and a water collecting seat 5 is arranged at the top of the water storage pipe 4 and at the corresponding position of the drainage well 301.

[0043] When in use, a water storage pipe 4 structure is laid inside the existing drainage ditch 3 of the municipal road, and the water storage pipe 4 is horizontally installed inside the drainage ditch 3. In rainy weather, rainwater falling on the surface of the pavement layer 1 will be discharged into the water collection well. The rainwater entering the water collection well will be diverted, with one part directly discharged from the drainage ditch 3, and the other part entering the water storage pipe 4 after being filtered. The filtered rainwater is stored in the water storage pipe 4. During consecutive sunny days, the rainwater in the water storage pipe 4 can pass through the discharge pipe 401 and the diversion pipe 403 and then be discharged into the soil layer 201 through the inclined pipe 404, thereby realizing water replenishment for the green plants inside the green belt 2.

[0044] Specifically, the bottom of the water collecting seat 5 is fixedly connected to a discharge pipe 501 installed on the top of the water storage pipe 4, and the interior of the discharge pipe 501 is connected to the interior of the water storage pipe 4, and a pad 505 is laid on the bottom end of the water collecting seat 5, and an activated carbon filter layer 502 is laid on the top of the pad 505, and a sand and gravel filter layer 503 is laid on the top of the activated carbon filter layer 502, and the top of the sand and gravel filter layer 503 is covered with a mesh layer 504.

[0045] When in use, a multi-layer filtering structure is provided inside the water collecting seat 5. Rainwater falling on the top of the water collecting seat 5 is first filtered through the sand and gravel filter layer 503 to remove larger particles of impurities mixed in the rainwater, and then filtered again through the activated carbon filter layer 502 to remove fine impurities in the water, thereby filtering the rainwater. The pad 505 structure supports and prevents leakage of each filter layer, and the covering mesh layer 504 limits the position of each filter layer.

[0046] Specifically, a water reservoir 6 is pre-buried inside the roadbed layer 101 at the bottom of the operating well 302, and an overflow pipe 601 connected to the inside of the water reservoir 6 is arranged at one end of the surface of the water pipe 4 away from the discharge pipe 401. A water pump 603 is installed at the bottom end of the water reservoir 6, and a water supply plug 604 is arranged on the surface of the green belt 2, and the discharge end of the water pump 603 is connected to the water supply end of the water supply plug 604.

[0047] When in use, water reservoirs 6 are arranged at intervals as needed in the drainage system. The excess water inside the water storage pipe 4 will be discharged from the overflow pipe 601 into the water reservoir 6 for storage. When it is necessary to replenish water for the sprinkler truck, the water pump 603 can be turned on to pump the water inside the water reservoir 6 out through the water pump 603 and discharge it from the water supply plug 604, thereby realizing the secondary utilization of rainwater. Compared with the water storage pipe 4, the water reservoir 6 can store more water and supply water for different functions, thereby expanding the utilization direction of rainwater.

[0048] Specifically, the discharge pipe 401 is installed with a valve 402 for controlling its opening and closing, and the bottom end of the drainage trough 3 is installed with a fixed seat 407 at intervals. The top of the fixed seat 407 is welded with an arc support ring 406 and the bottom of the water storage pipe 4 is attached to the top of the arc support ring 406.

[0049] When in use, the opening and closing of the discharge pipe 401 can be regulated by the valve 402. The valve 402 can be a manual valve 402 or a solenoid valve according to the use requirements. The fixing seat 407 is fixed to the bottom end of the drain trough 3 by fasteners, and the water storage pipe 4 is supported and fixed by the arc-shaped support ring 406 on the top.

[0050] Specifically, the activated carbon filter layer 502 is filled with activated carbon, the gravel filter layer 503 is filled with gravel, the mesh layer 504 is made of metal mesh, and the backing plate 505 is made of perforated metal plate.

[0051] When in use, the rainwater can be filtered through the cooperation of the filter layer structures, so that the collected and stored rainwater can meet the subsequent water use standards.

[0052] Specifically, a groove 602 is opened at the bottom of the inner wall of the water reservoir 6 and the water pump 603 is installed inside the groove 602. A cable groove 605 is opened in the horizontal direction at the bottom end of the inner wall of the water reservoir 6.

[0053] When in use, the groove 602 structure allows the water inside the water reservoir 6 to flow into the groove 602. The water pump 603 is located inside the groove 602 to ensure that it can discharge as much rainwater as possible from the water reservoir 6. The cable trough 605 structure is used to route the power cord of the water pump 603. The power cord of the water pump 603 passes through the cable trough 605 and is connected to an external power supply device. A sealing assembly is provided at the end of the cable trough 605 to prevent water from entering the cable trough 605.

[0054] When in use, a water storage pipe 4 structure is laid inside the existing drainage ditch 3 of the municipal road, and the water storage pipe 4 is horizontally installed inside the drainage ditch 3. In rainy weather, rainwater falling on the surface of the road surface layer 1 will be discharged into the water collection well. The rainwater entering the water collection well will be diverted, with one part directly discharged from the drainage ditch 3, and the other part entering the water storage pipe 4 after being filtered. The filtered rainwater is stored by the water storage pipe 4. During consecutive sunny days, the rainwater in the water storage pipe 4 can pass through the discharge pipe 401 and the diversion pipe 403 and then be discharged into the soil layer 201 through the inclined pipe 404, thereby realizing water replenishment treatment for green plants in the green belt 2, and improving rainwater utilization in outdoor buildings such as municipal roads and highway greening. The rate can be improved and added to the existing municipal drainage network, which can reduce the construction difficulty and cost, reduce the impact on road traffic, and improve the utilization rate of rainwater. In the drainage system, water reservoirs 6 are arranged at intervals as needed. The excess water inside the water storage pipe 4 will be discharged from the overflow pipe 601 to the water storage tank 6 for storage. When it is necessary to replenish water for the sprinkler truck, the water pump 603 can be turned on to pump the water inside the water storage tank 6 out through the water pump 603 and discharge it from the water supply plug 604, so as to realize the secondary utilization of rainwater. Compared with the water storage pipe 4, the water storage tank 6 can store more water and supply water to different functional entities, which expands the utilization direction of rainwater and further improves the utilization rate of rainwater.

[0055] Embodiment 2:

[0056] The technical solution adopted by the present invention to solve the technical problem is a sponge city rainwater diversion structure and a rainwater diversion process, comprising a pavement layer 1, a road base layer 101 is laid at the bottom of the pavement layer 1, a green belt 2 is arranged near the edge of the surface of the pavement layer 1, the green belt 2 is filled with a soil layer 201 extending to the inside of the road base layer 101, a drainage groove 3 is opened in the road base layer 101 in a horizontal direction near the pavement layer 1, and a drainage well 301 and an operation well 302 connected to the inside of the drainage groove 3 are opened on the surface of the pavement layer 1;

[0057] A water storage pipe 4 is laid horizontally inside the drainage ditch 3, and a discharge pipe 401 is arranged at intervals on the surface of the water storage pipe 4 facing the inside of the green belt 2. A diversion pipe 403 is arranged at a section of the end of the discharge pipe 401 away from the water storage pipe 4. An inclined pipe 404 inserted into the soil layer 201 is obliquely installed on the surface of the diversion pipe 403 facing the green belt 2. A diffuser hole 405 is opened at the end of the inclined pipe 404 located in a section inside the soil layer 201, and a water collecting seat 5 is arranged at the top of the water storage pipe 4 and at the corresponding position of the drainage well 301.

[0058] When in use, a water storage pipe 4 structure is laid inside the existing drainage ditch 3 of the municipal road, and the water storage pipe 4 is horizontally installed inside the drainage ditch 3. In rainy weather, rainwater falling on the surface of the pavement layer 1 will be discharged into the water collection well. The rainwater entering the water collection well will be diverted, with one part directly discharged from the drainage ditch 3, and the other part entering the water storage pipe 4 after being filtered. The filtered rainwater is stored in the water storage pipe 4. During consecutive sunny days, the rainwater in the water storage pipe 4 can pass through the discharge pipe 401 and the diversion pipe 403 and then be discharged into the soil layer 201 through the inclined pipe 404, thereby realizing water replenishment for the green plants inside the green belt 2.

[0059] Specifically, a movable sleeve 7 is provided at the connection point of the end of the water storage pipe 4 inside the operation well 302, and the movable sleeve 7 is inserted into the outer periphery of the water storage pipe 4, and a tooth plate 705 is welded at the middle position of the top of the movable sleeve 7, and a fixed frame 706 is fixedly connected to the inside of the operation well 302 in the horizontal direction, and the fixed frame 706 is installed with corresponding shaft sleeves 707 in the position, a rotating rod 708 is installed vertically between the shaft sleeves 707, and a gear 709 meshing with the tooth plate 705 is sleeved on the outer periphery of the rotating rod 708, and a rotating ring 710 for facilitating the rotation of the gear 709 is installed on the top of the rotating rod 708.

[0060] When in use, the movable sleeve 7 connects the ends of two adjacent groups of water storage pipes 4 in the water storage state to ensure the airtightness and normal water storage function of the connection of the water storage pipes 4. When continuous rainfall causes a large drainage pressure, the rotating ring 710 is turned inside the operating well 302 to drive the rotation of the rotating rod 708 and the gear 709. When the gear 709 rotates, it will drive the movement of the toothed plate 705, thereby causing the movable sleeve 7 to move horizontally at the end connection of the water storage pipe 4. In the drainage state, the movable sleeve 7 moves toward the outer periphery of the water storage pipe 4 on one side, so that the end connection of the water storage pipe 4 is disconnected and exposed. At this time, rainwater entering the drainage trough 3 and the water storage pipe 4 will be directly discharged. In this state, the water storage pipe 4 only plays a role in drainage and diversion, and no water storage treatment is performed. In this way, the drainage efficiency is affected by the occupation of the internal space of the drainage trough 3 by the water storage pipe 4 under continuous precipitation, thereby ensuring the drainage efficiency of the drainage system under continuous precipitation.

[0061] Specifically, a guide rail 701 is installed at the bottom of the inner wall of the operating well 302, and a slider 702 inserted into the guide rail 701 is fixedly connected to the bottom of the movable sleeve 7. A sealing ring 703 is embedded in one end of the movable sleeve 7, and a conical sealing ring 704 is embedded in the other end of the movable sleeve 7.

[0062] When in use, the guide rail 701 cooperates with the slider 702 structure to limit the movable sleeve 7 so that it can only move in the horizontal direction. The sealing ring 703 cooperates with the conical sealing ring 704 to ensure the sealing of the connection between the movable sleeve 7 and the water storage pipe 4 after the movable sleeve 7 moves into place.

[0063] Specifically, rainwater diversion goes through the following steps:

[0064] S1. In normal rainy weather, rainwater falls on the surface of the road surface layer 1 and flows into the drainage well 301 through the road surface drainage slope. The rainwater that enters the drainage well 301 falls, and part of the rainwater directly falls into the drainage trough 3 and flows into the drainage network along the drainage trough 3, and the other part of the rainwater falls on the top of the water collecting seat 5. The rainwater that falls on the top of the water collecting seat 5 will be filtered by the gravel filter layer 503 and the activated carbon filter layer 502 in turn, and the filtered rainwater will be discharged into the water storage pipe 4 through the discharge pipe 501. The larger impurities filtered by the gravel filter layer 503 will be discharged from both sides of the top of the water collecting seat 5 to the inside of the water collecting trough under the scouring of rainwater. The water storage pipe 4 is built inside the existing drainage trough 3. Part of the filtered rainwater enters the water storage pipe 4 to be collected and stored, and at the same time, part of the rainwater that enters the water storage pipe 4 will be discharged into the water storage tank 6 built at intervals through the overflow pipe 601;

[0065] S2. When the weather is dry, the soil layer 201 inside the green belt 2 is in a water-deficient state, and the valve 402 can be controlled to open, and part of the rainwater inside the water storage pipe 4 is discharged from the discharge pipe 401 to the inside of the diversion pipe 403, and then discharged from the inclined pipe 404 to the inside of the soil layer 201, so as to wet and humidify the soil layer 201 inside the green belt 2, increase the water content, and ensure that the water source of the green plants inside the green belt 2 is sufficient; at the same time, when a sprinkler truck is needed to clean the road surface, the water pump 603 can be turned on to discharge the filtered rainwater collected in the water storage tank 6 through the water supply plug 604, and provide it to the sanitation department as cleaning water, thereby improving the utilization rate of water resources;

[0066] S3. During long-term heavy rain, under continuous rainfall conditions, the rotating ring 710 can be turned inside the operating well 302 to drive the rotating rod 708 and the gear 709 to rotate. When the gear 709 rotates, it will drive the movement of the toothed plate 705, thereby causing the movable sleeve 7 to move horizontally at the end connection of the water storage pipe 4. In the water storage state, the movable sleeve 7 connects the ends of two adjacent groups of water storage pipes 4 to ensure airtightness and normal water storage. In the drainage state, the movable sleeve 7 moves to the outer periphery of the water storage pipe 4 on one side, so that the connection at the end of the water storage pipe 4 is disconnected and exposed. At this time, rainwater entering the drainage trough 3 and the water storage pipe 4 will be directly discharged. In this state, the water storage pipe 4 only plays a role in drainage and diversion, and no water storage treatment is performed, so as to reduce the problem of affecting drainage efficiency caused by the water storage pipe 4 occupying the internal space of the drainage trough 3 under continuous precipitation, thereby ensuring the drainage efficiency of the drainage system under continuous precipitation.

[0067] When in use, it can effectively divert, recycle, store and reuse rainwater in municipal roads, improve the utilization rate of rainwater in outdoor buildings such as municipal roads and highway greening, and at the same time reduce the difficulty of construction. It can improve and add to the existing municipal drainage network, reduce the impact on road traffic as well as construction and use costs, meet different weather conditions, and is suitable for promotion and application.

[0068] When in use, the movable sleeve 7 connects the ends of two adjacent groups of water storage pipes 4 in the water storage state to ensure the airtightness and normal water storage function of the connection of the water storage pipes 4. When continuous rainfall causes a large drainage pressure, the rotating ring 710 is turned inside the operating well 302 to drive the rotation of the rotating rod 708 and the gear 709. When the gear 709 rotates, it will drive the movement of the toothed plate 705, thereby causing the movable sleeve 7 to move horizontally at the end connection of the water storage pipe 4. In the drainage state, the movable sleeve 7 moves toward the outer periphery of the water storage pipe 4 on one side, so that the end connection of the water storage pipe 4 is disconnected and exposed. At this time, rainwater entering the drainage trough 3 and the water storage pipe 4 will be directly discharged. In this state, the water storage pipe 4 only plays a role in drainage and diversion, and no water storage treatment is performed. In this way, the drainage efficiency is affected by the occupation of the internal space of the drainage trough 3 by the water storage pipe 4 under continuous precipitation, thereby ensuring the drainage efficiency of the drainage system under continuous precipitation.

[0069] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A sponge city rainwater diversion structure, comprising a pavement layer (1), a road base layer (101) is laid at the bottom of the pavement layer (1), a green belt (2) is arranged near the edge of the surface of the pavement layer (1), the interior of the green belt (2) is filled with a soil layer (201) extending to the interior of the road base layer (101), a drainage groove (3) is provided in the interior of the road base layer (101) near the pavement layer (1) in a horizontal direction, and a drainage well (301) and an operation well (302) connected to the interior of the drainage groove (3) are provided on the surface of the pavement layer (1); It is characterized in that A water storage pipe (4) is laid horizontally inside the drainage ditch (3); a discharge pipe (401) is arranged at intervals on the surface of the water storage pipe (4) facing the inside of the green belt (2); a diversion pipe (403) is arranged at a section of the end of the discharge pipe (401) away from the water storage pipe (4); an inclined pipe (404) inserted into the inside of the soil layer (201) is obliquely installed on the surface of the diversion pipe (403) facing the side of the green belt (2); a diffuser hole (405) is opened at the end of the inclined pipe (404) located in a section inside the soil layer (201); and a water collecting seat (5) is arranged at the top of the water storage pipe (4) and at the corresponding position of the drainage well (301).

2. A rainwater diversion structure for a sponge city according to claim 1, characterized in that: The bottom of the water collecting seat (5) is fixedly connected to a discharge pipe (501) mounted on the top of the water storage pipe (4), and the interior of the discharge pipe (501) is connected to the interior of the water storage pipe (4). A pad (505) is laid at the bottom of the water collecting seat (5), an activated carbon filter layer (502) is laid on the top of the pad (505), a sand and gravel filter layer (503) is laid on the top of the activated carbon filter layer (502), and the top of the sand and gravel filter layer (503) is covered with a mesh layer (504).

3. A rainwater diversion structure for a sponge city according to claim 1, characterized in that: A water reservoir (6) is pre-buried inside the roadbed (101) at the bottom of the operating well (302); an overflow pipe (601) connected to the inside of the water reservoir (6) is arranged on the surface of the water reservoir pipe (4) at one end away from the discharge pipe (401); a water pump (603) is installed at the bottom end of the inside of the water reservoir (6); a water supply plug (604) is arranged on the surface of the green belt (2); and the discharge end of the water pump (603) is connected to the water supply end of the water supply plug (604).

4. A rainwater diversion structure for a sponge city according to claim 1, characterized in that: A movable sleeve (7) is provided inside the operating well (302) at the connection point of the end of the water storage pipe (4), and the movable sleeve (7) is sleeved onto the outer periphery of the water storage pipe (4). A tooth plate (705) is welded at the middle position of the top of the movable sleeve (7). A fixed frame (706) is fixedly connected to the inside of the operating well (302) in the horizontal direction, and shaft sleeves (707) corresponding to the position are installed inside the fixed frame (706). A rotating rod (708) is installed vertically between the shaft sleeves (707), and a gear (709) meshing with the tooth plate (705) is sleeved on the outer periphery of the rotating rod (708). A rotating ring (710) for facilitating the rotation of the gear (709) is installed on the top of the rotating rod (708).

5. The rainwater diversion structure of a sponge city according to claim 1 is characterized in that: The discharge pipe (401) is internally installed with a valve (402) for controlling its opening and closing, and the bottom end of the drainage groove (3) is internally installed with a fixed seat (407) at intervals, and the top of the fixed seat (407) is welded with an arc-shaped support ring (406), and the bottom of the water storage pipe (4) is attached to the top of the arc-shaped support ring (406).

6. A rainwater diversion structure for a sponge city according to claim 2, characterized in that: The activated carbon filter layer (502) is filled with activated carbon, the gravel filter layer (503) is filled with gravel, the mesh layer (504) is made of metal mesh, and the backing plate (505) is made of perforated metal plate.

7. The rainwater diversion structure of a sponge city according to claim 3 is characterized in that: The bottom of the inner wall of the water reservoir (6) is provided with a groove (602) and the water pump (603) is installed inside the groove (602). The bottom of the inner wall of the water reservoir (6) is provided with a cable groove (605) in a horizontal direction.

8. The rainwater diversion structure of a sponge city according to claim 4, characterized in that: A guide rail (701) is installed at the bottom of the inner wall of the operating well (302), and a slider (702) inserted into the guide rail (701) is fixedly connected to the bottom of the movable sleeve (7), a sealing ring (703) is embedded in one end of the movable sleeve (7), and a conical sealing ring (704) is embedded in the other end of the movable sleeve (7).

9. A sponge city rainwater diversion process according to claims 1-8, characterized in that: The rainwater diversion process goes through the following steps: S1. In normal rainy weather, rainwater falls on the surface of the road surface layer (1) and flows into the drainage well (301) through the road surface drainage slope. The rainwater entering the drainage well (301) falls down, and part of the rainwater directly falls into the drainage groove (3) and flows into the drainage network along the drainage groove (3). The other part of the rainwater falls on the top of the water collecting seat (5). The rainwater falling on the top of the water collecting seat (5) will be filtered by the gravel filter layer (503) and the activated carbon filter layer (502) in turn. The filtered rainwater is then discharged from the discharge pipe (501) into the water storage pipe (4). The larger impurities filtered by the sand and gravel filter layer (503) are flushed by the rainwater and discharged from both sides of the top of the water collection seat (5) into the water collection tank. The water storage pipe (4) is built inside the existing drainage tank (3). Part of the filtered rainwater enters the water storage pipe (4) and is collected and stored. At the same time, part of the rainwater that enters the water storage pipe (4) is discharged from the overflow pipe (601) into the water storage tank (6) built at a certain interval. S2. When the weather is dry and the soil layer (201) inside the green belt (2) is in a water-deficient state, the valve (402) can be controlled to open, and part of the rainwater inside the water storage pipe (4) is discharged from the discharge pipe (401) to the inside of the diversion pipe (403), and then discharged from the inclined pipe (404) to the inside of the soil layer (201), so as to perform a wetting and humidifying treatment on the soil layer (201) inside the green belt (2) to increase the water content and ensure that the green plants inside the green belt (2) have sufficient water. At the same time, when a watering truck is needed to clean the road surface, the water pump (603) can be turned on to discharge the filtered rainwater collected inside the water storage tank (6) through the water supply plug (604) and provide it to the sanitation department as cleaning water, thereby improving the utilization rate of water resources. S3. During long-term heavy rain, under the condition of continuous rainfall, the rotating ring (710) can be turned inside the operating well (302) to drive the rotating rod (708) and the gear (709) to rotate. When the gear (709) rotates, it will drive the tooth plate (705) to move, thereby causing the movable sleeve (7) to move horizontally at the end connection of the water storage pipe (4). In the water storage state, the movable sleeve (7) connects the ends of two adjacent groups of water storage pipes (4) to ensure airtightness and normal water storage. In the drainage state, the movable sleeve (7) moves to the outer periphery of the water storage pipe (4) on one side, so that the end connection of the water storage pipe (4) is disconnected and exposed. At this time, rainwater entering the drainage groove (3) and the water storage pipe (4) will be directly discharged. In this state, the water storage pipe (4) only plays a role in drainage and diversion, and does not perform water storage processing. In this way, the problem of affecting drainage efficiency caused by the water storage pipe (4) occupying the internal space of the drainage groove (3) under continuous rainfall is reduced, and the drainage efficiency of the drainage system under continuous rainfall is ensured.

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