A rainwater harvesting device for municipal roads

Abstract

This invention discloses a rainwater harvesting device for municipal roads, specifically relating to the field of rainwater harvesting technology. It includes a storage tank with a receiving structure at its upper end, a rainwater treatment structure for handling large-volume debris in the rainwater at the upper part of the tank's inner cavity, a sediment deposition structure for storing rainwater and settling silt at the lower part of the tank's inner cavity, and a waste storage cylinder for storing debris and silt at the rear of the tank's inner cavity. The rainwater harvesting device for municipal roads of this invention intercepts debris in the treatment tank, extending its service life while preventing clogging and wear of subsequent equipment. A self-cleaning component automatically removes debris from the treatment tank, ensuring filtration efficiency and the quality of the harvested water. Combined with the sediment deposition structure to settle silt and improve water quality, and the waste storage cylinder to collect debris and provide overflow protection, the coordinated operation of these structures improves rainwater treatment efficiency and the quality of the harvested water, achieving rational utilization of rainwater resources and reducing the pressure on municipal rainwater discharge.

Description

Technical Field

[0001] This invention relates to the field of rainwater harvesting technology, and in particular to a rainwater harvesting device for municipal roads. Background Technology

[0002] The field of rainwater harvesting technology encompasses related technologies and equipment for rainwater collection, treatment, and reuse. Its core content involves capturing, storing, and purifying rainwater through physical and engineering methods. This technical field systematically introduces how rainwater is guided from the catchment surface through pipelines into treatment units such as sedimentation and filtration facilities, subsequently stored in containers or underground structures, and ultimately used for non-potable water supply.

[0003] One type of rainwater harvesting device for municipal roads refers to a structural facility installed along urban roads to collect rainwater from the road surface. The technical aspects addressed include the collection, initial impurity separation, and diversion and storage of road runoff. Specifically, rainwater is collected by rainwater grates and transported through connecting pipes to a sedimentation chamber where gravity settling removes particulate matter. After passing through a filter to intercept fine impurities, the water is then introduced into a storage container.

[0004] Current technology relies on rainwater grates to collect rainwater, which is then transported through pipes to a sedimentation chamber where particulate matter is removed by gravity settling. After passing through a filter screen to intercept fine impurities, the water is then introduced into a storage container. However, when road runoff contains a variety of impurities and the flow rate is large, the limited capacity of the sedimentation chamber leads to insufficient settling. The filter screen is easily clogged by debris, affecting permeability and requiring regular manual cleaning and maintenance, which increases the operational burden. At the same time, relying solely on gravity separation is not effective in removing fine silt, which may lead to a decline in the quality of the stored water. During heavy rain, the processing capacity is insufficient, which can easily cause system blockage or overflow, affecting the rainwater harvesting effect and the long-term operation of the equipment. Summary of the Invention

[0005] The main objective of this invention is to provide a rainwater harvesting device for municipal roads, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A rainwater harvesting device for municipal roads includes a storage tank. The upper end of the storage tank has a receiving structure. The upper part of the inner cavity of the storage tank has a rainwater treatment structure for treating large-volume debris in the rainwater. The lower part of the inner cavity of the storage tank has a sediment deposition structure for storing rainwater and depositing silt. The rear part of the inner cavity of the storage tank has a waste storage cylinder for storing debris and silt. The rainwater treatment structure includes a treatment trough installed on the upper part of the inner cavity of the storage tank and connected to the receiving structure. The bottom wall of the treatment trough is made of non-woven fabric to prevent debris from falling. The inner surface of the treatment trough is provided with a self-cleaning component for cleaning debris. The lower end of the treatment trough overlaps with the upper end of the sediment deposition structure.

[0007] Preferably, the receiving structure includes an L-shaped receiving pipe fixedly installed on the upper end of the storage tank and communicating with the inner cavity of the storage tank. The end of the L-shaped receiving pipe away from the storage tank is installed at the adjacent sewer well opening. A grid for blocking large-volume branches and garbage is fixedly connected to the inner surface of the L-shaped receiving pipe near the well opening. The water outlet side of the L-shaped receiving pipe is located above the treatment tank.

[0008] Preferably, the upper end of the processing tank is symmetrically and fixedly connected with electric guide rails for driving the self-cleaning component to slide, and the inner walls of the processing tank are fixedly connected with racks on both sides for coordinating the operation of the self-cleaning component. The upper rear end of the processing tank is connected to the waste storage cylinder, and the upper rear end of the processing tank is symmetrically and fixedly connected with a discharge push rod and a flip-plate guide rod to assist the self-cleaning component in discharging waste.

[0009] Preferably, the self-cleaning component includes a cleaning box that fits against the bottom wall of the inner cavity of the processing tank. Both ends of the cleaning box are fixedly connected to limiting blocks that are slidably connected to the inner wall of the processing tank. The rear part of the inner cavity of the cleaning box is provided with a waste receiving component for cleaning and transporting debris. The inner cavity of the cleaning box is provided with a discharging component for discharging debris in conjunction with a discharging push rod.

[0010] Preferably, the waste receiving component includes a feeding roller rotatably mounted on the upper part of the inner cavity of the cleaning box. Gears located in the inner cavity of the limiting block and meshing with adjacent racks are fixedly connected to both ends of the feeding roller. A rectangular frame is rotatably connected to the rear part of the inner cavity of the cleaning box. A conveyor belt is mounted on the inner surface of the rectangular frame via a belt roller. Synchronous pulleys are provided on both the left and right sides of the rectangular frame and are connected to the conveyor belt via a synchronous belt drive. The synchronous pulleys are driven by the conveyor belt. A wedge-shaped scraper is fixedly connected to the rear end of the rectangular frame and fits against the bottom wall of the inner cavity of the cleaning box. When the rectangular frame moves to the rear of the processing tank, it changes from an inclined state to a horizontal state under the action of the flip-plate guide rod, thereby exposing the unloading component within the range of action of the unloading push rod.

[0011] Preferably, the feeding component includes a slide rail formed in the bottom wall of the inner cavity of the cleaning box. An eccentric flap is rotatably connected to the upper part of the inner surface of the slide rail. The eccentric flap is T-shaped and its rotation axis is located on the front side of the vertical part. A one-way flap second, which matches the position of the feeding push rod, is rotatably connected to the front part of the inner surface of the slide rail. When the one-way flap second contacts the feeding push rod, the one-way flap second rotates and drives the eccentric flap to rotate through the vertical part of the eccentric flap, so that the upper part of the inner cavity of the cleaning box is connected to the slide rail through the inclined eccentric flap.

[0012] Preferably, the sediment deposition structure includes a water storage tank fixedly installed in the inner cavity of the storage tank, a sediment trough fixedly installed at the lower end of the water storage tank, and a number of waste storage cylinders arranged in an array at the junction of the sediment trough and the inner wall of the water storage tank. The inner wall of the water storage tank is symmetrically provided with driving floats that drive the guiding components to move by changes in water level.

[0013] Preferably, the guiding assembly includes a limiting plate fixedly connected to the inner wall of the silt trough. The upper end of the limiting plate is wedge-shaped. The silt trough is rotatably connected to a baffle on the bottom side of the inclined surface of the limiting plate. An elastic shaft fixedly connected to the inner wall of the baffle is sleeved on the inner wall of the silt trough. The rotating side of the baffle is covered with a rubber layer and is tightly attached to the limiting plate. In the initial state, the baffle is tightly attached to the limiting plate under the action of the elastic shaft.

[0014] Preferably, the inner cavity of the sediment tank is symmetrically provided with sliding grooves on the left and right sides. The driving float is symmetrically and fixedly connected to the inner wall of the water storage tank with a cable that is slidably connected to the inner cavity of the water storage tank on the side near the inner wall of the water storage tank. The lower ends of the two cables extend into the inner cavity of the sliding groove and are fixedly connected to a sliding frame that is elastically connected to the inner cavity of the sliding groove. Several round rods that overlap with the baffle are arranged in an array and fixedly connected to the side of the sliding frame near the inner wall of the sediment tank. When the water level in the inner cavity of the water storage tank causes the driving float to float up, the driving float pulls the sliding frame upward through the cable and pushes the baffle to open.

[0015] Preferably, the waste storage cylinder has a discharge trough at the front of its upper end that communicates with its inner cavity. When the cleaning box is located at the last side of the path, the slide is connected to the discharge trough via a one-way flap. An isolation net is fixedly installed in the middle of the inner cavity of the waste storage cylinder, and an isolation net is fixedly installed in the lower part of the inner cavity of the discharge trough. A one-way flap is rotatably connected between the isolation net and the isolation net at the front end of the discharge trough via a torsion spring. The one-way flap can only rotate in the direction of the isolation net. The lower front end of the waste storage cylinder communicates with the inner cavity of the mud and sand trough. A through groove connected to a drain pipe is opened at the lower part of the storage tank below the isolation net.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention utilizes a combination of a receiving structure and a rainwater treatment structure. An L-shaped receiving pipe flexibly adapts to different installation locations to guide rainwater flow. A grille intercepts large debris in advance, preventing pipe blockage and component jamming, thus reducing the probability of equipment failure. The non-woven fabric inside the treatment tank balances permeability and debris interception, extending its service life while preventing subsequent equipment blockage and wear. A self-cleaning component automatically removes debris from the treatment tank, ensuring filtration efficiency and recycled water quality. A sedimentation structure settles sediment, improving water quality. A waste storage cylinder collects debris and provides overflow protection. All these structures work together to improve rainwater treatment efficiency and recycled water quality, achieving rational utilization of rainwater resources and reducing the pressure on municipal rainwater discharge.

[0017] 2. This invention utilizes the combination of an electric guide rail and a self-cleaning component, with the help of a limiting block to ensure stable sliding of the cleaning box without deviation. The rack and pinion meshing transmission allows the feeding roller to operate without additional power, achieving energy-saving waste conveying. The wedge-shaped scraper closely adheres to the bottom wall of the treatment tank to scrape away stubborn waste. The conveyor belt transports materials smoothly with the help of synchronous pulleys. The flip-plate guide rod adjusts the posture of the rectangular frame, the feeding push rod triggers the feeding component, the eccentric flip plate quickly flips to feed the material, the one-way flip plate prevents waste backflow, and the slide guides the waste to fall accurately into the waste storage cylinder, realizing automated waste cleaning and transfer, ensuring rainwater filtration efficiency and recycled water cleanliness, and improving the stability of the device operation.

[0018] 3. This invention utilizes a combination of a sedimentation structure and a waste storage cylinder. The water storage tank provides sufficient settling time for rainwater, while the sediment collection trough separates sediment to prevent clogging of subsequent equipment. Specifically, a driving float moves with the water level, and a cable pulls a sliding frame along a chute. A round rod smoothly pushes the baffle to open, and an elastic shaft and wedge-shaped limiting plate enhance the seal, preventing sand-laden rainwater from contaminating clean water. The discharge trough connects to a slide to guide debris into the cylinder. Isolation nets one and two filter impurities in layers, and a one-way flap prevents odors and debris from flowing back in. The filtered wastewater is discharged through a channel, achieving automatic sediment discharge and layered debris collection, improving the quality of recycled water, and enhancing the environmental friendliness and automated operation stability of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the receiving structure of the present invention; Figure 3 This is a schematic diagram of the rainwater treatment structure of the present invention; Figure 4 This is a schematic diagram of the structure of the self-cleaning component of the present invention; Figure 5 This is a schematic diagram of the waste receiving component of the present invention; Figure 6 This is a schematic diagram of the structure of the feeding component of the present invention; Figure 7 This is a schematic diagram of the sediment deposition structure of the present invention; Figure 8 This is a schematic diagram of the guiding component and driving float of the present invention; Figure 9 This is a schematic diagram of the waste storage cylinder of the present invention.

[0020] In the diagram: 1. Storage tank; 11. Through channel; 2. Receiving structure; 21. L-shaped receiving pipe; 22. Grille; 3. Waste storage cylinder; 31. Discharge chute; 32. Isolation net one; 33. Isolation net two; 34. One-way flap one; 4. Rainwater treatment structure; 41. Treatment tank; 42. Discharge push rod; 43. Flip guide rod; 44. Electric guide rail; 45. Rack; 46. Self-cleaning component; 461. Cleaning box; 462. Limiting block; 463. Waste receiving component; 4631. Wedge scraper; 46 32. Conveyor belt; 4633. Rectangular frame; 4634. Synchronous pulley; 4635. Feeding roller; 4636. Gear; 464. Unloading component; 4641. One-way flapper II; 4642. Eccentric flapper; 4643. Slide rail; 5. Sedimentation structure; 51. Water storage tank; 52. Sedimentation tank; 53. Guide assembly; 531. Baffle; 532. Limiting plate; 533. Elastic shaft; 54. Drive float; 541. Slide rail; 542. Sliding frame; 543. Round rod; 544. Cable. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] Example 1: A rainwater harvesting device for municipal roads, see reference. Figure 1 , Figure 2 and Figure 3 The system includes a storage tank 1, which serves as the core load-bearing component of the entire device, providing the installation foundation for each structure and forming a closed processing space. A receiving structure 2 is installed at the upper end of the storage tank 1, which is used to introduce rainwater from municipal roads from the sewer manhole into the device to collect the rainwater. A rainwater treatment structure 4 is installed in the upper part of the inner cavity of the storage tank 1 to treat large-volume debris in the rainwater. The core of the rainwater treatment structure 4 is to perform secondary debris filtration on the rainwater to be recycled, so as to avoid debris affecting the subsequent reuse process. A silt deposition structure 5 is installed in the lower part of the inner cavity of the storage tank 1 to store rainwater and deposit silt. The silt deposition structure 5 and the rainwater treatment structure 4 work together to purify the rainwater and ensure the quality of the recycled water. A waste storage cylinder 3 is installed at the rear of the inner cavity of the storage tank 1 to store debris and silt. The waste storage cylinder 3 also has an overflow protection function and can collect various impurities and treat excess rainwater. Furthermore, during the installation of storage tank 1, a manhole cover for the waste storage cylinder 3 needs to be reserved in advance. After long-term operation, there is no need to dig up the buried soil layer to clean the filter screen and other structures. The waste storage cylinder 3 will store debris and silt, which need to be cleaned manually to ensure the stability of long-term operation.

[0023] The rainwater treatment structure 4 includes a treatment tank 41 installed on the upper part of the inner cavity of the storage tank 1 and connected to the receiving structure 2. The treatment tank 41 receives rainwater from the receiving structure 2 and provides a filtration site. The bottom wall of the inner cavity of the treatment tank 41 is made of non-woven fabric to block debris from falling. The non-woven fabric has both good water permeability and interception ability, which can ensure smooth rainwater infiltration while filtering debris and extending the service life of the device. The inner surface of the treatment tank 41 is provided with a self-cleaning component 46 for cleaning debris. The self-cleaning component 46 can automatically remove the accumulated debris on the non-woven fabric to prevent debris residue from polluting the rainwater or affecting the filtration efficiency. The lower end of the treatment tank 41 overlaps with the upper end of the sediment deposition structure 5 to ensure that the filtered rainwater can flow accurately into the sediment deposition structure 5.

[0024] For further details, please refer to [link / reference]. Figure 2 The receiving structure 2 includes an L-shaped receiving pipe 21 fixedly installed on the upper end of the storage tank 1 and communicating with the inner cavity of the storage tank 1. The L-shaped receiving pipe 21 can flexibly adapt to the installation position of the wellhead and the storage tank 1 to realize the directional flow of rainwater and prevent rainwater leakage. The end of the L-shaped receiving pipe 21 away from the storage tank 1 is installed at the adjacent sewer wellhead to facilitate the rapid collection of road rainwater. The inner surface of the L-shaped receiving pipe 21 near the wellhead is fixedly connected to a grid 22 for blocking large branches and garbage. The grid 22 can intercept large impurities in advance, effectively preventing such debris from entering the device and causing pipe blockage or component jamming, significantly reducing the probability of equipment failure. The water outlet side of the L-shaped receiving pipe 21 is located above the treatment tank 41, which can ensure that the rainwater after preliminary filtration falls accurately into the treatment tank 41 for subsequent purification treatment.

[0025] In the operation of this embodiment, the rainwater is guided by the cooperation of the receiving structure 2 and the rainwater treatment structure 4. The L-shaped receiving pipe 21 is flexibly adapted to the installation position to achieve rainwater diversion. The grille 22 intercepts large-volume debris in advance to avoid pipe blockage and component jamming, reducing the probability of equipment failure. The non-woven fabric in the treatment tank 41 takes into account both water permeability and debris interception ability, extending its service life and preventing subsequent equipment blockage and wear. The self-cleaning component 46 can automatically remove debris in the treatment tank 41 to ensure filtration efficiency and recycled water quality. Combined with the sedimentation structure 5 to settle sediment and improve water quality, and the waste storage cylinder 3 to collect debris and achieve overflow protection, the coordinated operation of each structure improves rainwater treatment efficiency and recycled water quality, realizes the rational utilization of rainwater resources, and reduces the pressure of municipal rainwater discharge.

[0026] Example 2: Based on Example 1, this example further utilizes the cooperation between the electric guide rail 44 and the self-cleaning component 46. The limiting block 462 ensures the cleaning box 461 slides stably without deviation. The rack 45 and gear 4636 mesh and drive the feeding roller 4635 without additional power, achieving energy-saving waste conveying. The wedge-shaped scraper 4631 closely adheres to the bottom wall of the processing tank 41 to scrape away stubborn waste. The conveyor belt 4632 smoothly transports materials with the help of the synchronous pulley 4634. The flip-plate guide rod 43 adjusts the posture of the rectangular frame 4633. The discharge push rod 42 triggers the discharge component 464, causing the eccentric flip plate 4642 to quickly flip and discharge the material. The one-way flip plate 4641 prevents waste backflow. The slide 4643 guides the waste to accurately fall into the waste storage cylinder 3, achieving automated waste cleaning and transfer, ensuring rainwater filtration efficiency and recycled water cleanliness, and improving the operational stability of the device.

[0027] For further details, please refer to [link / reference]. Figure 3 The upper end of the treatment tank 41 is symmetrically and fixedly connected with electric guide rails 44 for driving the self-cleaning component 46 to slide. The electric guide rails 44 are existing devices that can drive the equipment to move linearly. They are conventional technologies in the prior art. They have a built-in control board and are driven by an external solar panel or connected to a nearby solar street light. They can periodically drive the self-cleaning component 46 to slide back and forth in the treatment tank 41. The electric guide rails 44 provide stable sliding power and trajectory for the self-cleaning component 46, ensuring that the cleaning action is carried out in an orderly manner. The inner walls of the treatment tank 41 are fixedly connected with electric guide rails 44 on both the left and right sides for coordinating the driving of the self-cleaning component 46. The rack 45, which operates in conjunction with the gears of the self-cleaning component 46, can synchronously drive the debris conveying component during sliding, achieving integrated cleaning and conveying. The upper rear part of the processing tank 41 is connected to the waste storage cylinder 3, making it easy to directly send the cleaned debris into the waste storage cylinder 3. The upper rear part of the processing tank 41 is symmetrically and fixedly connected with a discharge push rod 42 and a flap guide rod 43 to assist the self-cleaning component 46 in discharging waste. The discharge push rod 42 can trigger the discharge action of the self-cleaning component 46, and the flap guide rod 43 can adjust the internal structure posture of the self-cleaning component 46 to facilitate the discharge and ensure the smooth transfer of debris.

[0028] For further details, please refer to [link / reference]. Figure 5The self-cleaning component 46 includes a cleaning box 461 that fits against the bottom wall of the inner cavity of the processing tank 41. The cleaning box 461 provides space for cleaning and temporarily storing debris, while tightly fitting against the bottom wall to ensure no dead corners in cleaning. Both ends of the cleaning box 461 are fixedly connected to limiting blocks 462 that slide against the inner wall of the processing tank 41. The limiting blocks 462 can limit the sliding direction of the cleaning box 461 to prevent deviation from affecting the cleaning effect and improve the stability of movement. The rear of the inner cavity of the cleaning box 461 is provided with a waste receiving component 463 for cleaning and transporting debris. The waste receiving component 463 can scrape the debris from the bottom wall of the processing tank 41 and transport it to the rear of the cleaning box 461. The inner cavity of the cleaning box 461 is provided with a discharging component 464 for tilting debris in conjunction with the discharging push rod 42. The discharging component 464 can open the channel under external triggering to send the debris into the waste storage cylinder 3.

[0029] For further details, please refer to [link / reference]. Figure 5 and Figure 6 The waste receiving component 463 includes a feeding roller 4635 rotatably mounted on the upper part of the inner cavity of the cleaning box 461. The feeding roller 4635 can assist in pushing the debris to the rear of the cleaning box 461, preventing the debris from accumulating at the front. Both ends of the feeding roller 4635 are fixedly connected to gears 4636 located in the inner cavity of the limiting block 462 and meshing with adjacent racks 45. The gears 4636 mesh with the racks 45 for transmission, and can drive the feeding roller 4635 to rotate with the sliding power of the cleaning box 461. No additional power source is required, which is energy-saving and efficient. A rectangular frame 4633 is rotatably connected to the rear of the inner cavity of the cleaning box 461. The rectangular frame 4633 can be adjusted to adapt to the cleaning and unloading actions. A conveyor belt 4632 is installed on the inner surface of the rectangular frame 4633 through a belt roller. The conveyor belt 4632 can smoothly transport the scraped debris to the cleaning box. At the rear of the cleaning box 461, on both the left and right sides of the rectangular frame 4633, there are synchronous pulleys 4634 that are connected to the conveyor belt 4632 via synchronous belt drive. The synchronous pulleys 4634 are connected to the conveyor belt 4632 to ensure that the conveyor belt 4632 runs smoothly and prevents debris from falling. At the rear end of the rectangular frame 4633, there is a wedge-shaped scraper 4631 that fits against the bottom wall of the inner cavity of the cleaning box 461. The wedge-shaped scraper 4631 can fit tightly against the bottom wall and thoroughly scrape off the attached stubborn debris, preventing the debris residue from breeding bacteria and contaminating the recycled water. When the rectangular frame 4633 moves to the rear of the treatment tank 41, the rectangular frame 4633 changes from an inclined state to a horizontal state under the action of the flip plate guide rod 43, thereby exposing the unloading component 464 within the range of action of the unloading push rod 42, preparing for the subsequent unloading of debris.

[0030] For further details, please refer to [link / reference]. Figure 5 and Figure 6The unloading component 464 includes a slide 4643 formed in the bottom wall of the inner cavity of the cleaning box 461. The slide 4643 provides a channel for debris to fall, ensuring that the debris falls accurately into the waste storage cylinder 3. An eccentric flap 4642 is rotatably connected to the upper part of the inner surface of the slide 4643. The eccentric flap 4642 is T-shaped and its rotation axis is located on the front side of the vertical part. This structure can realize rapid flipping unloading, and at the same time, it can close the slide 4643 in the non-unloading state to prevent debris from falling prematurely. The front part of the inner surface of the slide 4643 is rotatably connected to... The one-way flap 4641 is matched with the feeding push rod 42. The one-way flap 4641 can only rotate in one direction, which can prevent debris from flowing back and contaminating the recycling water. When the one-way flap 4641 contacts the feeding push rod 42, the one-way flap 4641 rotates and drives the eccentric flap 4642 to rotate through the vertical part of the eccentric flap 4642. This allows the upper part of the inner cavity of the cleaning box 461 to connect with the slide 4643 through the inclined eccentric flap 4642, allowing the debris to slide into the slide 4643 along the eccentric flap 4642 by gravity.

[0031] Example 3: Based on Example 2, this example utilizes the combination of sedimentation structure 5 and waste storage cylinder 3. Water storage tank 51 provides sufficient settling time for rainwater, while sediment tank 52 collects and separates sediment to prevent clogging of subsequent equipment. Specifically, a driving float 54 floats with the water level, and a cable 544 pulls a sliding frame 542 along a chute 541. A round rod 543 smoothly pushes the baffle 531 to open. The elastic shaft 533 and wedge-shaped limiting plate 532 enhance the seal, preventing sand-laden rainwater from contaminating clean water. The discharge chute 31 connects to the slide 4643 to guide debris into the cylinder. Isolation net 1 32 and Isolation net 2 33 filter impurities in layers. A one-way flap 34 prevents odors and debris from flowing back into the system. The trough 11 discharges filtered wastewater, achieving automatic sediment discharge and layered debris collection, improving the quality of recycled water, and enhancing the environmental friendliness and automated operation stability of the device.

[0032] For further details, please refer to [link / reference]. Figure 7 The sediment deposition structure 5 includes a water storage tank 51 fixedly installed inside the storage tank 1. The water storage tank 51 is used to store filtered rainwater, providing reserves for subsequent recycling and providing sufficient time for sediment settling to ensure purification effect. A sediment trough 52 is fixedly installed at the lower end of the water storage tank 51. The sediment trough 52 is used to collect settled sediment, achieving separation of sediment from rainwater and preventing sediment from entering subsequent equipment with the recycled water and causing blockage. Several waste storage cylinders 3 are arranged in an array at the junction of the sediment trough 52 and the inner wall of the water storage tank 51, which facilitates the centralized collection of sediment. The inner wall of the water storage tank 51 is symmetrically equipped with drive floats 54 that drive the guide component 53 to move by changes in water level. The drive floats 54 can sense changes in water level in the water storage tank 51 in real time and automatically trigger sediment discharge without manual intervention, improving the automation level of the device.

[0033] For further details, please refer to [link / reference]. Figure 8 The guiding component 53 includes a limiting plate 532 fixedly connected to the inner wall of the sediment trough 52. The upper end of the limiting plate 532 is wedge-shaped, and the wedge-shaped structure can enhance the sealing fit with the baffle 531 and prevent rainwater leakage. The baffle 531 is rotatably connected to the bottom side of the inclined surface of the sediment trough 52. The baffle 531 can control the opening and closing of the sediment trough 52 to realize the discharge of sediment as needed. The inner wall of the baffle 531 is fitted with an elastic shaft 533 fixedly connected to the inner wall of the sediment trough 52. The elastic shaft 533 provides a restoring force for the baffle 531, ensuring that the baffle 531 is tightly closed in the initial state. The rotating side of the baffle 531 is covered with a rubber layer and is in close contact with the limiting plate 532. The rubber layer can further improve the sealing performance and prevent incompletely settled sandy rainwater from mixing into the silt trough 52 and contaminating the purified rainwater. In the initial state, the baffle 531 is tightly attached to the limiting plate 532 under the action of the elastic shaft 533, ensuring that the rainwater in the water storage tank 51 settles stably.

[0034] For further details, please refer to [link / reference]. Figure 8 The inner cavity of the sediment trough 52 is symmetrically provided with sliding grooves 541. The sliding grooves 541 provide a stable sliding trajectory for the sliding frame 542, ensuring precise transmission. The driving float 54 is symmetrically and fixedly connected to the inner wall of the water storage tank 51 with cables 544 that slide in the inner cavity of the water storage tank 51. The cables 544 can transmit the buoyancy of the driving float 54, realizing the long-distance transmission of force. The lower ends of the two cables 544 extend into the inner cavity of the sliding grooves 541 and are fixedly connected to the sliding frame 542 that is elastically connected to the inner cavity of the sliding grooves 541. The sliding frame 542 can drive The round rods 543 move synchronously, and the elastic connection design can avoid damage to the components due to rigid collisions, thus extending their service life. Several round rods 543 that overlap with the baffle 531 are fixedly connected in an array on one side of the sliding frame 542 near the inner wall of the sediment tank 52. The round rods 543 can apply a uniform pushing force to the baffle 531 to ensure that the baffle 531 opens smoothly. When the water level in the inner cavity of the water storage tank 51 causes the driving float 54 to float upward, the driving float 54 pulls the sliding frame 542 upward through the cable 544 and pushes the baffle 531 to open, realizing the automatic discharge of sediment.

[0035] For further details, please refer to [link / reference]. Figure 9The waste storage cylinder 3 has a discharge trough 31 at the front of its upper end, which communicates with its inner cavity. The discharge trough 31 provides an entry channel for debris and overflowing rainwater. When the cleaning box 461 is located at the last side of the path, the slide 4643 connects to the discharge trough 31 through the one-way flap 4641, ensuring that the debris in the cleaning box 461 can fall accurately into the waste storage cylinder 3. An isolation net 32 ​​is fixedly installed in the middle of the inner cavity of the waste storage cylinder 3. The isolation net 32 ​​can perform preliminary filtration on the falling debris and intercept larger debris. An isolation net 33 is fixedly installed in the lower part of the inner cavity of the discharge trough 31. The isolation net 33 can further filter fine impurities and intercept mud and sand to prevent impurities from entering the sewer and causing blockage. The front end of the discharge trough 31 is located between the isolation net 1 32 and the isolation net 2 33, and is connected by a torsion spring to a one-way flap 1 34. The one-way flap 1 34 can only rotate in the direction of the isolation net 2 33, which can ensure that debris and overflowing rainwater can enter smoothly, and prevent the odor and debris in the waste storage cylinder 3 from flowing back into the treatment tank 41 and polluting the recycled water, thus improving the environmental protection of the device. The lower part of the front end of the waste storage cylinder 3 is connected to the inner cavity of the sludge tank 52, which facilitates the entry and storage of sludge. The lower end of the storage tank 1 is located at the lower part of the isolation net 2 33 and has a through channel 11 connected to the sewer pipe. The overflowing rainwater and the water carried by the discharged sludge after being filtered by the isolation net can be discharged into the sewer through the through channel 11.

[0036] The foregoing has shown and described 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 embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A rainwater harvesting device for municipal roads, comprising a storage tank (1), characterized in that: The upper end of the storage tank (1) is provided with a receiving structure (2), the upper part of the inner cavity of the storage tank (1) is provided with a rainwater treatment structure (4) for treating large-volume debris in rainwater, the lower part of the inner cavity of the storage tank (1) is provided with a silt deposition structure (5) for storing rainwater and depositing silt, and the rear part of the inner cavity of the storage tank (1) is provided with a waste storage cylinder (3) for storing debris and silt; the rainwater treatment structure (4) includes a treatment tank (41) installed on the upper part of the inner cavity of the storage tank (1) and connected to the receiving structure (2), the bottom wall of the inner cavity of the treatment tank (41) is a non-woven fabric to prevent debris from falling, the inner surface of the treatment tank (41) is provided with a self-cleaning component (46) for cleaning debris, and the lower end of the treatment tank (41) overlaps with the upper end of the silt deposition structure (5).

2. The rainwater harvesting device for municipal roads according to claim 1, characterized in that: The receiving structure (2) includes an L-shaped receiving pipe (21) fixedly installed on the upper end of the storage tank (1) and communicating with the inner cavity of the storage tank (1). The end of the L-shaped receiving pipe (21) away from the storage tank (1) is installed at the adjacent sewer well opening. The inner surface of the L-shaped receiving pipe (21) near the well opening is fixedly connected with a grid (22) for blocking large-volume branches and garbage. The water outlet side of the L-shaped receiving pipe (21) is located above the treatment tank (41).

3. The rainwater harvesting device for municipal roads according to claim 1, characterized in that: The upper end of the processing tank (41) is symmetrically and fixedly connected with electric guide rails (44) for driving the self-cleaning component (46) to slide. The inner walls of the processing tank (41) are fixedly connected with racks (45) for coordinating the operation of the self-cleaning component (46). The upper rear end of the processing tank (41) is connected to the waste storage cylinder (3). The upper rear end of the processing tank (41) is symmetrically and fixedly connected with a feeding push rod (42) and a flip-plate guide rod (43) to assist the self-cleaning component (46) in discharging waste.

4. The rainwater harvesting device for municipal roads according to claim 3, characterized in that: The self-cleaning component (46) includes a cleaning box (461) that fits against the bottom wall of the inner cavity of the processing tank (41). Both ends of the cleaning box (461) are fixedly connected with limiting blocks (462) that slide against the inner wall of the processing tank (41). The rear part of the inner cavity of the cleaning box (461) is provided with a waste receiving component (463) for cleaning and transporting debris. The inner cavity of the cleaning box (461) is provided with a discharge component (464) for discharging debris in conjunction with the discharge push rod (42).

5. The rainwater harvesting device for municipal roads according to claim 4, characterized in that: The waste receiving component (463) includes a feeding roller (4635) rotatably mounted on the upper part of the inner cavity of the cleaning box (461). Both ends of the feeding roller (4635) are fixedly connected to gears (4636) located in the inner cavity of the limiting block (462) and meshing with adjacent racks (45). A rectangular frame (4633) is rotatably connected to the rear part of the inner cavity of the cleaning box (461). A conveyor belt (4632) is mounted on the inner surface of the rectangular frame (4633) via a belt roller. Both sides of the rectangular frame (4633) are provided with gears (4636) that mesh with the conveyor belt (4636). 32) A synchronous pulley (4634) is connected by a synchronous belt drive. The synchronous pulley (4634) is connected to the transmission belt (4632). The rear end of the rectangular frame (4633) is fixedly connected to a wedge-shaped scraper (4631) that fits against the bottom wall of the inner cavity of the cleaning box (461). When the rectangular frame (4633) moves to the rear of the processing tank (41), the rectangular frame (4633) is converted from an inclined state to a horizontal state under the action of the flip-plate guide rod (43), thereby exposing the unloading component (464) to the range of action of the unloading push rod (42).

6. The rainwater harvesting device for municipal roads according to claim 4, characterized in that: The feeding component (464) includes a slide (4643) formed on the bottom wall of the inner cavity of the cleaning box (461). An eccentric flap (4642) is rotatably connected to the upper part of the inner surface of the slide (4643). The eccentric flap (4642) is T-shaped and its rotation axis is located on the front side of the vertical part. A one-way flap (4641) that matches the position of the feeding push rod (42) is rotatably connected to the front part of the inner surface of the slide (4643). When the one-way flap (4641) contacts the feeding push rod (42), the one-way flap (4641) rotates and drives the eccentric flap (4642) to rotate through the vertical part of the eccentric flap (4642), so that the upper part of the inner cavity of the cleaning box (461) is connected to the slide (4643) through the inclined eccentric flap (4642).

7. The rainwater harvesting device for municipal roads according to claim 6, characterized in that: The sediment deposition structure (5) includes a water storage tank (51) fixedly installed in the inner cavity of the storage tank (1). A sediment tank (52) is fixedly installed at the lower end of the water storage tank (51). Several waste storage cylinders (3) are arranged in an array at the junction of the sediment tank (52) and the inner wall of the water storage tank (51). A drive float (54) is symmetrically arranged on the left and right sides of the inner wall of the water storage tank (51) to drive the guide component (53) to move by the change of water level.

8. The rainwater harvesting device for municipal roads according to claim 7, characterized in that: The guiding component (53) includes a limiting plate (532) fixedly connected to the inner wall of the silt trough (52). The upper end of the limiting plate (532) is wedge-shaped. The silt trough (52) is rotatably connected to a baffle (531) on one side of the bottom of the inclined surface of the limiting plate (532). The inner wall of the baffle (531) is fitted with an elastic shaft (533) fixedly connected to the inner wall of the silt trough (52). The rotating side of the baffle (531) is covered with a rubber layer and is tightly attached to the limiting plate (532). In the initial state, the baffle (531) is tightly attached to the limiting plate (532) under the action of the elastic shaft (533).

9. The rainwater harvesting device for municipal roads according to claim 8, characterized in that: The inner cavity of the sediment tank (52) is symmetrically provided with sliding grooves (541). The driving float (54) is symmetrically fixedly connected to the inner wall of the water storage tank (51) with a cable (544) that is slidably connected to the inner cavity of the water storage tank (51). The lower ends of the two cables (544) extend to the inner cavity of the sliding groove (541) and are fixedly connected to a sliding frame (542) that is elastically connected to the inner cavity of the sliding groove (541). The sliding frame (542) is arranged in an array and fixedly connected to several round rods (543) that overlap with the baffle (531) on the inner wall of the sediment tank (52). When the water level in the inner cavity of the water storage tank (51) causes the driving float (54) to float, the driving float (54) pulls the sliding frame (542) upward through the cable (544) and pushes the baffle (531) to open.

10. The rainwater harvesting device for municipal roads according to claim 7, characterized in that: The waste storage cylinder (3) has a discharge trough (31) connected to its inner cavity at the front of the upper end. When the cleaning box (461) is located at the last side of the path, the slide (4643) is connected to the discharge trough (31) through the one-way flap (4641). The middle of the inner cavity of the waste storage cylinder (3) is fixedly installed with an isolation net (32). The lower part of the inner cavity of the discharge trough (31) is fixedly installed with an isolation net (33). The front end of the discharge trough (31) is connected to the one-way flap (34) between the isolation net (32) and the isolation net (33) by a torsion spring. The one-way flap (34) can only rotate in the direction of the isolation net (33). The lower part of the front end of the waste storage cylinder (3) is connected to the inner cavity of the mud and sand trough (52). The lower end of the storage tank (1) is located at the lower part of the isolation net (33) and has a through groove (11) connected to the drain pipe.

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