Sponge city drainage system

Abstract

The invention belongs to the technical field of sponge city flood drainage, and particularly discloses a sponge city flood drainage system which comprises an anti-backflow device arranged in a flood drainage channel, a movable flood drainage device and a detachable water retaining device. The anti-backflow device comprises a gate frame arranged in the flood drainage channel, a gate blocking groove is formed in the gate frame, and a detachable gate baffle is arranged in the gate blocking groove. Through the mode that the anti-backflow device, the flood drainage device and the water blocking device are combined, a three-prevention linkage closed-loop mechanism of flood drainage, interception and backflow prevention can be formed; the purposes of accurate drainage, quick response and sustainable operation and maintenance are achieved, backward flowing of rainwater and rivers in cities is effectively prevented, extreme rainfall, typhoon and other disasters caused by climate changes are effectively resisted, and waterlogging caused by backward flowing of heavy rainfall in a short time is prevented.

Description

Technical Field

[0001] The present invention belongs to the technical field of sponge city drainage, and in particular relates to a sponge city drainage system. Background Art

[0002] In recent years, extreme weather has occurred frequently in the Yellow River Basin. Short-term heavy rainfall can easily cause urban drainage systems to overload, exacerbating the risk of urban flooding. With the advancement of urbanization in the Yellow River region, impermeable surfaces have increased and natural flood retention areas have decreased, weakening the natural infiltration capacity of rainwater. Traditional urban flood prevention systems have problems such as lagging design standards, complex operation, non-durable materials, and high maintenance costs. For example, water retaining plates require multiple people to install and are unable to cope with emergencies. Mobile water pumps are complicated to operate and require checking of engine oil and battery voltage, which can easily delay the timing of urban flood prevention and cause the drainage system to overload.

[0003] Existing mobile water pumps also have the following problems: floating garbage blocks the pump body, resulting in an equipment downtime rate of up to 35%. During drainage, the pump body is easily blocked by floating garbage such as branches, cardboard boxes, white foam boards, and packaging bags. Manual operation involving water carries a serious risk of electric shock (annual average accident rate of 0.7‰). The power cord of the water pump is exposed, and manual operation nearby is prone to electric leakage, posing a personal safety hazard. The pump cannot adapt to the working conditions of rapidly changing water levels.

[0004] In addition, before encountering extreme rainfall weather, it is necessary to organize a large number of personnel to initiate emergency measures in advance according to the weather forecast. However, the urban environment is complex, and there are three major pain points: "not sealing tightly", "not keeping up", and "easy to backflow". Simple manpower investment is difficult to prevent the occurrence of urban flooding. Problems such as difficulty in draining rainwater in the city, rainwater backflow in basements, and backflow in urban rivers often occur. Moreover, low-lying areas are prone to water accumulation and form a deep pool, posing a safety hazard. Simple pumping and drainage is difficult to produce results. Therefore, there is an urgent need for a sponge city drainage system that can prevent rainwater backflow. Summary of the Invention

[0005] Based on the above problems, a sponge city drainage system is provided to prevent rainwater backflow.

[0006] Based on the above objectives, the present invention is achieved through the following technical solutions: A sponge city drainage system includes a backflow prevention device, a movable drainage device and a detachable water retaining device arranged in a drainage channel; the backflow prevention device includes a gate frame arranged in the drainage channel, a gate retaining groove is provided on the gate frame, and a detachable gate retaining plate is provided in the gate retaining groove.

[0007] Preferably, the gate frame is a U-shaped frame; the gate retaining groove includes a gate hole arranged at the top of the gate frame and cooperating with the gate baffle, a gate slide groove arranged on both sides of the gate frame and cooperating with the gate baffle, and a gate card slot arranged at the bottom of the gate frame and cooperating with the gate baffle; a hand-held hole is provided at the top of the gate baffle.

[0008] Preferably, the water retaining device comprises at least one group of spliced ​​water retaining plates, both ends of the spliced ​​water retaining plates are provided with splicing brackets, and the splicing brackets are connected to the splicing brackets on the adjacent spliced ​​water retaining plates through splicing pieces.

[0009] Preferably, the splicing bracket includes a splicing pillar, a splicing slot that cooperates with the splicing water baffle is provided on the side of the splicing pillar, and an adjustable bolt is provided on the side of the splicing slot; the splicing part includes a splicing column connected to the splicing bracket, a splicing pole is provided on the side of the splicing column, one end of the splicing pole is connected to the splicing column through a splicing shaft, and the other end is connected to the splicing support through a support shaft.

[0010] Preferably, the spliced ​​water retaining plate includes a main splicing plate at the bottom end, and the main splicing plate is provided with at least one auxiliary splicing plate connected to the main splicing plate. The top of the auxiliary splicing plate and the top of the main splicing plate are provided with corrugated splicing grooves, and the corrugated splicing grooves are matched with the corrugated reinforcing plate arranged at the bottom end of the auxiliary splicing plate.

[0011] Preferably, the main splicing plate includes a splicing support plate, and at least two detachable splicing bottom plates are provided at the bottom end of the splicing support plate. The splicing bottom plate cooperates with the support plate bottom groove arranged at the bottom end of the splicing support plate. A splicing pressure groove is provided on one side of the splicing bottom plate, and the splicing pressure groove cooperates with the splicing pressure plate arranged on the other side of the splicing bottom plate; the cross-section of the splicing bottom plate is L-shaped.

[0012] Preferably, the drainage device includes at least one mobile pumping station, which includes an upper frame body and a lower frame body connected to the upper frame body. Isolation filters are provided on the side and bottom surfaces of the lower frame body. A rocker arm shaft is provided at the top of the upper frame body, and the rocker arm shaft cooperates with the rocker arm motor arranged on the upper frame body. A water pump rope is provided on the rocker arm shaft, and a water pump hook is provided at the bottom end of the water pump rope, and a water pump is connected to the water pump hook.

[0013] Preferably, a limiting inner hole is built into the end of the rocker arm shaft, and the limiting inner hole cooperates with the limiting push rod arranged on the upper frame body. The movable end of the limiting push rod is provided with a conical limiting column, and limiting racks are evenly distributed on the conical limiting column. The limiting racks are engaged with the limiting gear teeth evenly distributed in the limiting inner hole; a limiting guide bar is provided at the bottom end of the conical limiting column, and the limiting guide bar cooperates with the limiting guide groove arranged on the upper frame body. Guide bar balls are provided on both sides of the limiting guide bar, and the guide bar balls cooperate with the guide bar rolling grooves arranged on both sides of the limiting guide groove.

[0014] Preferably, a pair of limiting rings cooperating with the water pump rope are provided on the rocker arm shaft, and a detachable rocking handle is provided at the end of the rocker arm shaft away from the limiting inner hole; the upper frame body is a prism shape; a universal wheel is provided at the bottom end of the lower frame body, and a push-pull handle is symmetrically provided at the top end of the lower frame body.

[0015] The top end of the upper frame is connected to the lower frame body by two pairs of upper frame supports, and any pair of upper frame supports is connected by a frame spring; the top end of the upper frame support is rotatably connected to the upper frame top plate by the upper frame rotating shaft, and an adjusting shaft is provided at the bottom end, and an adjusting concave wheel is provided at both ends of the adjusting shaft, and the adjusting concave wheel cooperates with the adjusting groove set on the lower frame body, and an adjusting convex strip cooperating with the adjusting concave wheel is provided in the adjusting groove; an adjusting screw barrel perpendicular to the adjusting shaft is provided on the adjusting shaft, and the adjusting screw barrels are connected by an adjusting screw set in the lower frame body, and the threads in the two adjusting screw barrels connected by the adjusting screw have opposite directions, and the adjusting screw cooperates with the adjusting motor set in the lower frame body, and the two ends of the adjusting screw are rotatably connected to the lower frame body through screw bearings; a remote controller electrically connected to the rocker arm motor is provided on the upper frame body, and the remote controller is wirelessly connected to the remote control; a flexible filter screen connected to the upper frame body is provided on the top surface of the lower frame body.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention forms a three-prevention linkage closed-loop mechanism of "drainage + interception + prevention of backflow" by combining an anti-backflow device, a drainage device and a water retaining device, achieving the goal of "precise drainage, rapid response, and sustainable operation and maintenance", effectively preventing the backflow of rainwater and rivers in cities, effectively resisting extreme rainfall, typhoons and other disasters caused by climate change, preventing waterlogging caused by backflow of short-term heavy rainfall, and comprehensively improving the actual effectiveness in waterlogging prevention. It can provide strong technical support for flood control emergency rescue work, effectively improve the guarantee of flood control materials, save manpower, and put more energy into the rescue and guarantee work of flood control materials, thereby improving the quality of flood control material guarantee.

[0017] 2. The drainage device, water retaining device and backflow prevention device form a systematic linkage, which can fundamentally solve the three major pain points of "not sealing tightly", "not keeping up" and "easy to flow back" in the work of preventing urban waterlogging. In the face of the suddenness and uncontrollability of urban waterlogging, emergency rescue measures can be quickly initiated, greatly reducing property and economic losses.

[0018] 3. The present invention can break through the limitations of fixed installation of traditional equipment, improve the reuse capability in multiple scenarios, and solve the pain point of traditional equipment that requires frequent manual adjustment. It is especially suitable for scenes where water levels fluctuate frequently, such as warehouses, communities, garages, etc., which are prone to water accumulation and difficult to drain. It is simple to operate and easy to deploy. The mobile pump station and the spliced ​​water retaining plate of the present invention can be deployed together to form a "pumping + interception" double protection. The mobile pump station and the spliced ​​water retaining plate both support modular disassembly and assembly, and are suitable for waterlogging rescue work in scenes such as communities, warehouses, and underground garages. Through technological innovation, it ensures that anti-waterlogging equipment achieves breakthroughs in efficiency and stability. The flexibility of the structure provides a more reliable solution for flood protection in various scenarios; the present invention optimizes the material and structure of the mobile pump station, water retaining plate and micro gate, and the isolation filter can effectively isolate debris to prevent it from entering the interior of the water pump; anodizing treatment is performed on the surface of the spliced ​​water retaining plate to enhance corrosion resistance, and at the same time, the slot is reinforced at the connection between the spliced ​​column and the ground, which further improves the stability of the water retaining plate when the water level is too high; the structure and material of the gate frame and gate baffle of the anti-backflow device are upgraded to eliminate the disadvantages of the gate baffle being "unable to open" or "loosely closed".

[0019] 4. The spliced ​​water retaining plate of the present invention is extruded from 6061-T6 aluminum alloy, which combines lightweight and compressive strength. The surface is anodized or electrophoretically treated to enhance corrosion resistance and adapt to long-term outdoor use. The gate frame is made of Q235 steel, and the surface is sprayed with a polyurethane anti-corrosion layer, which is resistant to acid, alkali and salt spray corrosion and has a service life of more than 20 years. The gate baffle is made of polyethylene HDPE material, which has high strength and corrosion resistance. At the same time, its weight is more than 50% lighter than that of traditional cast iron gates. Combining the advantages of the above materials, the present invention achieves the "double insurance" of saving maintenance costs and improving durability.

[0020] 5. The drainage device, water retaining device and backflow prevention device of the present invention are jointly deployed to improve energy efficiency and solve environmental protection problems. For example, a water retaining device is used at the gate of the reservoir area to intercept external water accumulation, and the gate baffle of the backflow prevention device is closed to prevent backflow. At the same time, the mobile pump station of the drainage device quickly pumps out the internal water, forming a "drainage + interception + backflow prevention" three-defense linkage; emergency response: the mobile pump station and the spliced ​​water retaining plate and gate baffle all support rapid start-up, installation and use, and are suitable for extreme weather such as sudden waterlogging and typhoons, which significantly improves the efficiency of emergency rescue.

[0021] 6. The mobile pump station uses permanent magnet motors and variable frequency technology to reduce carbon emissions and prevent oil leaks from polluting the environment. It also balances drainage and ecological water replenishment, allowing for irrigation or water resource regulation during the off-flood season. The water retaining plates and micro-gates are made of recyclable, environmentally friendly materials, offering both durability and environmental benefits. Combined with these advantages, this invention upgrades from passive defense to active prevention and control, achieving breakthroughs in efficiency, stability, and mobility. It breaks the limitations of traditional fixed installations, enhances multi-scenario reuse, and achieves a balance between efficient drainage, intelligent early warning, and environmental protection and energy conservation, providing reliable protection for urban infrastructure security.

[0022] 7. The design of the present invention realizes the transformation from "passive rescue" to "active prevention and control". Through the closed-loop mechanism of "blocking-intercepting-drainage", it can significantly reduce the probability of urban waterlogging, improve the emergency rescue capability when urban waterlogging occurs, avoid drainage backflow and water retention, reduce traffic accidents and infrastructure damage caused by waterlogging, enhance the city's ability to quickly prevent floods, ensure safety, and provide emergency rescue, and improve the urban drainage resilience to prevent urban waterlogging disasters. It has the characteristics of flexibility, modularization, and coordination.

[0023] 8. The present invention reduces the damage caused by waterlogging to infrastructure (such as roads, houses, and power systems) by waterlogging by intercepting the backflow of external water bodies and quickly draining the accumulated water, thereby reducing the property losses caused by waterlogging and the cost of post-disaster reconstruction. At the same time, combined with the advantages of the present invention such as flexibility, ease of operation, reuse, and low maintenance costs, while improving the resilience of urban drainage, the investment cost of urban waterlogging prevention equipment is reduced. This sponge city drainage system achieves a dual improvement in economic and social benefits through the "active defense + emergency response" model, providing a systematic solution for urban flood control and drainage, water resources management, and sustainable development.

[0024] 9. The present invention forms a closed-loop mechanism of "drainage + interception + backflow prevention" through the coordinated operation of mobile pump stations, water retaining plates, and micro-gates. It can comprehensively improve the actual effectiveness of the present invention in flood prevention, achieve the goals of "precise drainage, rapid response, and sustainable operation and maintenance", and provide strong technical support for flood prevention and emergency rescue work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the structure of the anti-backflow device in Example 1; Figure 2 is a structural diagram of the gate frame in Example 1; Figure 3 Schematic diagram of the structure of the gate baffle in Example 1; Figure 4 is a schematic structural diagram of the water retaining device in Example 1; Figure 5is a schematic structural diagram of the splicing bracket in Example 1; Figure 6 It is a structural diagram of the spliced ​​columns in Example 1; Figure 7 It is a structural diagram of the corrugated splicing groove in Example 1; Figure 8 is a schematic structural diagram of the main splicing plate in Example 1; Figure 9 is a schematic structural diagram of the drainage device in Example 1; Figure 10 is a structural diagram of the upper frame body in Example 1; Figure 11 is a schematic structural diagram of the rocker arm shaft in Example 1; Figure 12 Schematic diagram of the structure of the limit push rod in Example 1; Figure 13 is a schematic structural diagram of the upper frame support in Example 1; Figure 14 It is a structural schematic diagram of the adjustment groove in Example 1.

[0026] In the figure, the gate frame 100, the gate baffle 101, the hand-held hole 102, the gate hole 103, the gate slot 104, the gate slide 105, the auxiliary splicing plate 201, the splicing piece 202, the splicing support plate 203, the splicing bracket 204, the splicing pole 205, the splicing support 206, the support shaft 207, the splicing slot 208, the adjustable bolt 209, the splicing shaft 210, the splicing column 211, the corrugated splicing groove 212, the corrugated reinforcement plate 213, the splicing bottom plate 214, the lower frame body 300, and the push-pull handle 301 , upper frame body 302, rocker arm shaft 303, rocker arm motor 304, limit push rod 305, adjustment groove 306, isolation filter 307, universal wheel 308, rocking hand 309, water pump rope 310, limit collar 311, upper frame pillar 312, upper frame shaft 313, adjusting screw 314, upper frame top plate 315, limit inner hole 316, limit gear teeth 317, rocker arm gear 318, limit rack 319, conical limit column 320, adjusting concave wheel 321, adjusting screw barrel 322, and adjusting shaft 323. DETAILED DESCRIPTION

[0027] The present invention is further described below with reference to specific examples, which however do not limit the scope of the present invention.

[0028] Example 1 A sponge city drainage system, the structure of which is as follows Figure 1-14As shown, it includes a backflow prevention device, a movable drainage device and a detachable water retaining device arranged in the drainage channel; the backflow prevention device includes a gate frame 100 arranged in the drainage channel, a gate retaining groove is provided on the gate frame 100, and a detachable gate retaining plate 101 is provided in the gate retaining groove.

[0029] The gate frame 100 is a U-shaped frame; the gate retaining groove includes a gate hole 103 arranged at the top of the gate frame 100 and cooperating with the gate baffle 101, a gate slide groove 105 arranged on both sides of the gate frame 100 and cooperating with the gate baffle 101, and a gate card slot 104 arranged at the bottom of the gate frame 100 and cooperating with the gate baffle 101; a hand-held hole 102 is provided at the top of the gate baffle 101.

[0030] The water retaining device includes at least one set of spliced ​​water retaining plates, each of which is provided with a splicing bracket 204 at both ends. The splicing bracket 204 is connected to the splicing bracket 204 on the adjacent spliced ​​water retaining plate via a splicing piece 202. The splicing bracket 204 includes a splicing column, the side of which is provided with a splicing slot 208 that matches the spliced ​​water retaining plate, and the side of the splicing slot 208 is provided with an adjustable bolt 209; the splicing piece 202 includes a splicing column 211 connected to the splicing bracket 204, and the side of the splicing column 211 is provided with a splicing rod 205. One end of the splicing rod 205 is connected to the splicing column 211 via a splicing shaft 210, and the other end is connected to the splicing support 206 via a support shaft 207.

[0031] The spliced ​​water retaining plate includes a main splicing plate at the bottom, which is provided with at least one auxiliary splicing plate 201 connected to the main splicing plate. The tops of the auxiliary splicing plate 201 and the tops of the main splicing plates are provided with corrugated splicing grooves 212, which cooperate with corrugated reinforcing plates 213 provided at the bottom of the auxiliary splicing plate 201. The main splicing plate includes a splicing support plate 203, the bottom of which is provided with at least two detachable splicing bottom plates 214, which cooperate with the support plate bottom grooves provided at the bottom of the splicing support plate 203. One side of the splicing bottom plate 214 is provided with a splicing pressing groove, which cooperates with a splicing pressing plate provided on the other side of the splicing bottom plate 214; the cross-section of the splicing bottom plate 214 is L-shaped.

[0032] The drainage device includes at least one mobile pumping station, which includes an upper frame body 302 and a lower frame body 300 connected to the upper frame body 302. Isolation filters 307 are laid on the side and bottom surfaces of the lower frame body 300; a rocker shaft 303 is provided at the top of the upper frame body 302, and the rocker shaft 303 cooperates with a rocker motor 304 arranged on the upper frame body 302. A water pump rope 310 is provided on the rocker shaft 303, and a water pump hook is provided at the bottom end of the water pump rope 310, and a water pump is connected to the water pump hook.

[0033] A limiting inner hole 316 is built into the end of the rocker arm shaft 303. This inner hole 316 mates with a limiting push rod 305 provided on the upper frame body 302. The movable end of the limiting push rod 305 is provided with a tapered limiting post 320. Limiting racks 319 are evenly distributed on the conical limiting post 320. The limiting racks 319 mesh with limiting gear teeth 317 evenly distributed within the limiting inner hole 316. A pair of limiting collars 311 are sleeved on the rocker arm shaft 303 to mate with the water pump rope 310. A detachable rocking handle 309 is provided on the end of the rocker arm shaft 303 away from the limiting inner hole 316. The upper frame body 302 is prism-shaped. A universal wheel 308 is provided at the bottom end of the lower frame body 300, and a push-pull handle 301 is symmetrically provided at the top end of the lower frame body 300.

[0034] The upper frame body 302 includes an upper frame top plate 315, which is connected to the lower frame body 300 through two pairs of upper frame pillars 312; the top of the upper frame pillar 312 is rotatably connected to the upper frame top plate 315 through the upper frame rotating shaft 313, and the bottom end is provided with an adjusting rotating shaft 323, and the two ends of the adjusting rotating shaft 323 are provided with adjusting concave wheels 321, and the adjusting concave wheels 321 cooperate with the adjusting groove 306 set on the lower frame body 300; the adjusting rotating shaft 323 is provided with an adjusting screw barrel 322 perpendicular to the adjusting rotating shaft 323, and the adjusting screw barrels 322 are connected by an adjusting screw 314 set in the lower frame body 300, and the adjusting screw 314 cooperates with the adjusting motor set in the lower frame body 300; the upper frame body 302 is provided with a remote controller electrically connected to the rocker motor 304, and the remote controller is wirelessly connected to the remote control.

[0035] A sponge city drainage system adopts the following method, including the following steps: S1. Preparations before a rainstorm; This sponge city drainage system is suitable for drainage in reservoir areas and low-lying areas. When an extreme weather warning is received, the mobile pump stations of the drainage device will be pushed to the predetermined position, and the water inlet of the flooded area, including the entrance to the underground garage, will be blocked using a water retaining device. At the same time, the external water level height will be observed in time or monitored in real time through a water level sensor, and the anti-backflow device will be used in time to close the drainage channel to prevent external water from flowing back into the sponge city.

[0036] S2. Use of anti-backflow device; When the external water level exceeds the water level of the drainage channel, the anti-backflow device is used to close the drainage channel to prevent external water from flowing back. Specifically, the gate baffle 101 is held through the hand-held hole 102, and the gate baffle 101 enters the gate slot 104 along the gate hole 103 and the gate slide 105, closing the gate frame 100 to prevent external water from flowing into the internal flooding area along the drainage channel.

[0037] S3. Use of water retaining device; After receiving an extreme weather warning, the water retaining device is quickly arranged at each entrance and exit that is prone to backflow to prevent property and personal loss caused by extreme weather. Specifically, the splicing bracket 204 and the splicing part 202 are fixed at the preset position, and an appropriate number of splicing base plates 214 are placed at the appropriate position. The splicing pressure grooves of the splicing base plates 214 and the splicing pressure plates of the adjacent splicing base plates 214 are superimposed on each other, and the splicing support plate 203 of the main splicing plate is inserted into the bottom end of the splicing bracket 204 along the splicing card groove 208. At the same time, the combined splicing base plate 214 is inserted into the splicing support plate 203 along the support plate bottom groove, and the splicing support plate 203 is fixed in the splicing card groove 208 using the adjustable bolt 209.

[0038] The auxiliary splicing plate 201 is connected to the splicing support plate 203 along the splicing card slot 208, and the corrugated reinforcing plate 213 at the bottom end of the auxiliary splicing plate 201 is inserted into the corrugated splicing groove 212 at the top end of the splicing support plate 203. The auxiliary splicing plate 201 can be installed as needed, so that the corrugated reinforcing plate 213 at the bottom end of the auxiliary splicing plate 201 is inserted into the corrugated splicing groove 212 of the adjacent auxiliary splicing plate 201, and then the auxiliary splicing plate 201 is fixed to the splicing card slot 208 using the adjustable bolt 209. Inside, the installation of the water retaining device is quickly completed by plugging in. After the installation is completed, adjust the splicing column 211 away from the splicing pole 205 on the side of the splicing base plate 214, and the splicing pole 205 is rotated along the splicing shaft 210 on the splicing column 211 to a suitable angle, adjust the splicing support 206, and the splicing support 206 is rotated along the support shaft 207 to a certain angle, so that the splicing support 206 is close to the ground, completing the fitting support for the splicing column 211.

[0039] S4. Use of drainage devices; After receiving an extreme weather warning, the mobile pump stations of the drainage device are pushed to the predetermined position. Specifically, the push-pull handle 301 is used to push the mobile pump station along the universal wheel 308 to the appropriate position in the low-lying area. The remote control controls the rocker motor 304 through the remote controller to start the rocker motor 304. The rocker motor 304 drives the rocker shaft 303 to rotate along the rocker bearing on the upper frame body 302 through the rocker gear 318, loosening the water pump rope 310 between the two limiting rings 311. Under the action of gravity of the water pump on the water pump hook, the water pump sinks to the bottom of the lower frame body 300 and contacts the ground in the low-lying area. The mobile pump station is ready. When waterlogging occurs in the sponge city, the water pump is started remotely, and the accumulated water in the low-lying area is drained under the action of the isolation filter 307.

[0040] The water pump used in the drainage device is equipped with a detachable hanging ring, which is convenient for hanging and fixing on the water pump hook. The water pump used in this application is an existing type of water pump, such as a mud pump, an ordinary water pump, etc. Among them, the mud pump can extract a mixture of mud and water, which is convenient for drainage and dredging in low-lying areas. The ordinary water pump can quickly extract accumulated water in low-lying areas, thereby achieving efficient drainage operations.

[0041] When the rocker motor 304 fails, the detachable rocker handle 309 is installed on the rocker shaft 303, and the rocker shaft 303 can also be driven to rotate by using the rocker handle 309; the mobile pump station can adjust the height of the water pump according to different water levels, specifically, controlling the extension of the limit push rod 305, and the conical limit column 320 at the movable end of the limit push rod 305 is inserted into the limit inner hole 316, and the limit rack 319 is engaged with the limit gear 317, and the rocker shaft 303 is positioned through the limit inner hole 316 to achieve the positioning of the water pump height, which is convenient for the water pump to drain areas with different terrains.

[0042] Due to the particularity of the urban flooding environment, the mobile pump station needs to be exposed to the water surface to prevent vehicles or personnel from hitting the mobile pump station. The height of the mobile pump station is adjusted according to the change in water level. Specifically, the adjusting motor drives the adjusting screw 314 to rotate in the lower frame body 300, and the adjusting screw 314 engages with two adjusting screw barrels 322 with opposite thread directions. The two upper frame pillars 312 are driven to move closer or farther away through the adjusting screw barrel 322. The adjusting concave wheel 321 on the adjusting shaft 323 rolls along the adjusting groove 306, and the gear teeth in the adjusting concave wheel 321 engage with the gear teeth in the adjusting groove 306, so that the upper frame pillars 312 can move closer or farther away stably. The upper frame pillars 312 are adjusted in angle along the upper frame shaft 313 under the upper frame top plate 315 to adjust the height of the upper frame top plate 315 of the upper frame body 302, so that the upper frame top plate 315 can always be exposed to the water surface to prevent the mobile pump station from being hit by vehicles or personnel.

[0043] Example 2 A sponge city drainage system adopts the following method, including the following steps: S1. Preparations before a rainstorm; This sponge city drainage system is suitable for drainage in reservoir areas and low-lying areas. When an extreme weather warning is received, the mobile pump stations of the drainage device will be pushed to the predetermined position, and the water inlet of the flooded area, including the entrance to the underground garage, will be blocked using a water retaining device. At the same time, the external water level height will be observed in time or monitored in real time through a water level sensor, and the anti-backflow device will be used in time to close the drainage channel to prevent external water from flowing back into the sponge city.

[0044] S2. Use of anti-backflow device; When the external water level exceeds the water level of the drainage channel, the anti-backflow device is used to close the drainage channel to prevent external water from flowing back. Specifically, the gate baffle 101 is held through the hand-held hole 102, and the gate baffle 101 enters the gate slot 104 along the gate hole 103 and the gate slide 105, closing the gate frame 100 to prevent external water from flowing into the internal flooding area along the drainage channel.

[0045] S3. Use of water retaining device; After receiving an extreme weather warning, the water retaining device is quickly arranged at each entrance and exit that is prone to backflow to prevent property and personal loss caused by extreme weather. Specifically, the splicing bracket 204 and the splicing part 202 are fixed at the preset position, and an appropriate number of splicing base plates 214 are placed at the appropriate position. The splicing pressure grooves of the splicing base plates 214 and the splicing pressure plates of the adjacent splicing base plates 214 are superimposed on each other, and the splicing support plate 203 of the main splicing plate is inserted into the bottom end of the splicing bracket 204 along the splicing card groove 208. At the same time, the combined splicing base plate 214 is inserted into the splicing support plate 203 along the support plate bottom groove, and the splicing support plate 203 is fixed in the splicing card groove 208 using the adjustable bolt 209.

[0046] The auxiliary splicing plate 201 is connected to the splicing support plate 203 along the splicing card slot 208, and the corrugated reinforcing plate 213 at the bottom end of the auxiliary splicing plate 201 is inserted into the corrugated splicing groove 212 at the top end of the splicing support plate 203. The auxiliary splicing plate 201 can be installed as needed, so that the corrugated reinforcing plate 213 at the bottom end of the auxiliary splicing plate 201 is inserted into the corrugated splicing groove 212 of the adjacent auxiliary splicing plate 201, and then the auxiliary splicing plate 201 is fixed to the splicing card slot 208 using the adjustable bolt 209. Inside, the installation of the water retaining device is quickly completed by plugging in. After the installation is completed, adjust the splicing column 211 away from the splicing pole 205 on the side of the splicing base plate 214, and the splicing pole 205 is rotated along the splicing shaft 210 on the splicing column 211 to a suitable angle, adjust the splicing support 206, and the splicing support 206 is rotated along the support shaft 207 to a certain angle, so that the splicing support 206 is close to the ground, completing the fitting support for the splicing column 211.

[0047] S4. Use of drainage devices; After receiving an extreme weather warning, the mobile pump stations of the drainage device are pushed to the predetermined position. Specifically, the push-pull handle 301 is used to push the mobile pump station along the universal wheel 308 to the appropriate position in the low-lying area. The remote control controls the rocker motor 304 through the remote controller to start the rocker motor 304. The rocker motor 304 drives the rocker shaft 303 to rotate along the rocker bearing on the upper frame body 302 through the rocker gear 318, loosening the water pump rope 310 between the two limiting rings 311. Under the action of gravity of the water pump on the water pump hook, the water pump sinks to the bottom of the lower frame body 300 and contacts the ground in the low-lying area. The mobile pump station is ready. When waterlogging occurs in the sponge city, the water pump is started remotely, and the accumulated water in the low-lying area is drained under the action of the isolation filter 307.

[0048] The water pump used in the drainage device is equipped with a detachable hanging ring, which is convenient for hanging and fixing on the water pump hook. The water pump used in this application is an existing type of water pump, such as a mud pump, an ordinary water pump, etc. Among them, the mud pump can extract a mixture of mud and water, which is convenient for drainage and dredging in low-lying areas. The ordinary water pump can quickly extract accumulated water in low-lying areas, thereby achieving efficient drainage operations.

[0049] When the rocker motor 304 fails, the detachable rocker handle 309 is installed on the rocker shaft 303, and the rocker shaft 303 can also be driven to rotate by using the rocker handle 309; the mobile pump station can adjust the height of the water pump according to different water levels, specifically, controlling the extension of the limit push rod 305, and the conical limit column 320 at the movable end of the limit push rod 305 is inserted into the limit inner hole 316, and the limit rack 319 is engaged with the limit gear 317, and the rocker shaft 303 is positioned through the limit inner hole 316 to achieve the positioning of the water pump height, which is convenient for the water pump to drain areas with different terrains.

[0050] Due to the particularity of the urban flooding environment, the mobile pump station needs to be exposed to the water surface to prevent vehicles or personnel from hitting the mobile pump station. The height of the mobile pump station is adjusted according to the change in water level. Specifically, the adjusting motor drives the adjusting screw 314 to rotate in the lower frame body 300, and the adjusting screw 314 engages with two adjusting screw barrels 322 with opposite thread directions. The two upper frame pillars 312 are driven to move closer or farther away through the adjusting screw barrel 322. The adjusting concave wheel 321 on the adjusting shaft 323 rolls along the adjusting groove 306, and the gear teeth in the adjusting concave wheel 321 engage with the gear teeth in the adjusting groove 306, so that the upper frame pillars 312 can move closer or farther away stably. The upper frame pillars 312 are adjusted in angle along the upper frame shaft 313 under the upper frame top plate 315 to adjust the height of the upper frame top plate 315 of the upper frame body 302, so that the upper frame top plate 315 can always be exposed to the water surface to prevent the mobile pump station from being hit by vehicles or personnel.

[0051] Example 3 A sponge city drainage system differs from Example 1 in that a limiting guide bar is provided at the bottom end of a conical limiting column 320, the limiting guide bar cooperates with a limiting guide groove provided on the upper frame body 302, and guide bar balls are provided on both sides of the limiting guide bar, and the guide bar balls cooperate with the guide bar rolling grooves provided on both sides of the limiting guide groove.

[0052] Example 4 A sponge city drainage system differs from Example 1 in that: a positioning push rod is provided on the upper frame body 302, and the movable end of the positioning push rod is engaged with the rocker gear 318 provided on the rocker shaft 303 through a limiting groove provided on the upper frame body 302, and the movable end of the positioning push rod is provided with a limiting fan ring, and the limiting fan ring is evenly distributed with fan ring teeth that engage with the rocker gear 318.

[0053] The above description is only a preferred embodiment of the present invention, but is not limited to the above examples. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sponge city drainage system, characterized in that: It includes a backflow prevention device, a movable drainage device and a detachable water retaining device arranged in the drainage channel; the backflow prevention device includes a gate frame arranged in the drainage channel, a gate retaining groove is provided on the gate frame, and a detachable gate retaining plate is provided in the gate retaining groove.

2. The sponge city drainage system according to claim 1, characterized in that: The gate frame is a U-shaped frame; the gate retaining groove includes a gate hole arranged at the top of the gate frame and cooperating with the gate baffle, a gate slide arranged on both sides of the gate frame and cooperating with the gate baffle, and a gate card slot arranged at the bottom of the gate frame and cooperating with the gate baffle; a hand-held hole is provided at the top of the gate baffle.

3. The sponge city drainage system according to claim 1, characterized in that: The water retaining device comprises at least one group of spliced ​​water retaining plates, both ends of which are provided with splicing brackets, and the splicing brackets are connected with the splicing brackets on the adjacent spliced ​​water retaining plates through splicing pieces.

4. The sponge city drainage system according to claim 3, characterized in that: The splicing bracket includes a splicing pillar, a splicing slot that matches the splicing water baffle is provided on the side of the splicing pillar, and an adjustable bolt is provided on the side of the splicing slot; the splicing part includes a splicing column connected to the splicing bracket, a splicing pole is provided on the side of the splicing column, one end of the splicing pole is connected to the splicing column through a splicing shaft, and the other end is connected to the splicing support through a support shaft.

5. The sponge city drainage system according to claim 4, characterized in that: The spliced ​​water retaining plate includes a main splicing plate at the bottom end, and the main splicing plate is provided with at least one auxiliary splicing plate connected to the main splicing plate. The top of the auxiliary splicing plate and the top of the main splicing plate are provided with corrugated splicing grooves, and the corrugated splicing grooves are matched with the corrugated reinforcing plate arranged at the bottom end of the auxiliary splicing plate.

6. The sponge city drainage system according to claim 5, characterized in that: The main splicing plate includes a splicing support plate, and at least two detachable splicing bottom plates are provided at the bottom end of the splicing support plate. The splicing bottom plate cooperates with the support plate bottom groove provided at the bottom end of the splicing support plate. A splicing pressure groove is provided on one side of the splicing bottom plate, and the splicing pressure groove cooperates with the splicing pressure plate provided on the other side of the splicing bottom plate; the cross-section of the splicing bottom plate is L-shaped.

7. The sponge city drainage system according to claim 1, characterized in that: The drainage device includes at least one mobile pumping station, which includes an upper frame body and a lower frame body connected to the upper frame body. Isolation filters are provided on the side and bottom surfaces of the lower frame body. A rocker arm shaft is provided at the top of the upper frame body, and the rocker arm shaft cooperates with the rocker arm motor arranged on the upper frame body. A water pump rope is provided on the rocker arm shaft, and a water pump hook is provided at the bottom end of the water pump rope, and a water pump is connected to the water pump hook.

8. The sponge city drainage system according to claim 7, characterized in that: A limiting inner hole is built into the end of the rocker arm shaft, and the limiting inner hole cooperates with a limiting push rod arranged on the upper frame body. The movable end of the limiting push rod is provided with a conical limiting column, and limiting racks are evenly distributed on the conical limiting column. The limiting racks are engaged with limiting gear teeth evenly distributed in the limiting inner hole.

9. The sponge city drainage system according to claim 8, characterized in that: A pair of limiting rings that cooperate with the water pump rope are sleeved on the rocker arm shaft, and a detachable rocking handle is provided at the end of the rocker arm shaft away from the limiting inner hole; the upper frame body is prism-shaped; a universal wheel is provided at the bottom end of the lower frame body, and a push-pull handle is symmetrically provided at the top end of the lower frame body.

10. The sponge city drainage system according to claim 9, characterized in that: The upper frame body includes an upper frame top plate, which is connected to the lower frame body through two pairs of upper frame pillars; the top ends of the upper frame pillars are rotatably connected to the upper frame top plate through the upper frame rotating shaft, and the bottom ends are provided with an adjusting rotating shaft, and the two ends of the adjusting rotating shaft are provided with adjusting concave wheels, which cooperate with the adjusting grooves provided on the lower frame body; the adjusting rotating shaft is provided with an adjusting screw barrel perpendicular to the adjusting rotating shaft, and the adjusting screw barrels are connected by an adjusting screw provided in the lower frame body, and the adjusting screw cooperates with the adjusting motor provided in the lower frame body; the upper frame body is provided with a remote controller electrically connected to the rocker arm motor, and the remote controller is wirelessly connected to a remote control.

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