Rainwater drainage system of municipal road

By designing an automatic drainage and filtration system for water storage tanks and rainwater gutters, the drainage problem of municipal road rainwater drainage systems in case of equipment failure or personnel absence was solved, realizing automatic drainage and filtration, and improving the reliability and practicality of the system.

CN121138431APending Publication Date: 2025-12-16ANHUI TENGFEI GARDEN CONSTR ENG CO LTD
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Patent Information

Application Number
CN202511593591.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-03
Publication Date
2025-12-16

AI Technical Summary

Technical Problem

Municipal road stormwater drainage systems struggle to drain water in a timely manner when equipment malfunctions or personnel are unavailable, leading to reduced system reliability and drainage efficiency.

Method used

A rainwater drainage system was designed, comprising a water storage tank, a rainwater trough, a sludge trough, a drainage mechanism, a filtration mechanism, and a maintenance mechanism. Automatic drainage is achieved using a spring telescopic rod and a piston plate, and rainwater is filtered through a cross plate and a half-gear structure. The rotatable sludge trough and movable plate facilitate cleaning, enabling automatic drainage and filtration without the need for manual inspection or mechanical equipment assistance.

Benefits of technology

It enables automatic drainage and filtration in the event of equipment failure or personnel absence, improving the reliability and practicality of the device, simplifying the maintenance process, and enhancing the response efficiency and smoothness of the drainage system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of municipal road drainage, and discloses a municipal road rainwater drainage system which comprises a plurality of spring telescopic rods and a baffle, the spring telescopic rods are arranged on the periphery of the top of the inner side of a water storage tank, and waterproof sleeves are fixedly connected to the outer portions of the spring telescopic rods; a piston plate is fixedly connected to the bottom of a spring telescopic rod, the outer side of a baffle is fixedly connected with a waterproof sleeve, a water outlet is formed in the bottom of the right side of the water storage tank, an operation assembly is arranged at the top of the outer side of the water storage tank, a supporting assembly is arranged on the outer side of an impurity groove, and a positioning assembly is arranged at the bottom of the outer side of the water storage tank. When the water storage tank is full and the piston plate reaches the bottommost part, the baffle is moved away to expose the water outlet to drain redundant rainwater, and after the water level is lowered, the baffle blocks the water outlet again, manual work and equipment are not needed, and automatic water drainage is achieved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of municipal road drainage, in particular to a rainwater drainage system for municipal roads. BACKGROUND

[0002] Municipal roads are public transportation facilities planned, constructed and maintained by city governments, and are the core framework of the urban transportation system. They are used for motor vehicles, non-motor vehicles and pedestrians, and are connected to residential areas, commercial areas and functional areas, and have the functions of traffic guidance and laying of water supply and drainage and power lines. In order to facilitate drainage of municipal roads, a rainwater drainage system for municipal roads is needed.

[0003] The rainwater drainage system for municipal roads is an important part of municipal infrastructure, used to collect and transport rainwater on road surfaces and surrounding areas. It is composed of rainwater inlets, drainage pipes, inspection wells and water outlets. It can quickly drain rainwater from the road surface, avoid water accumulation affecting traffic and pedestrian safety, and also reduce the erosion of rainwater on the road structure through rational design. It can also combine rainwater storage and infiltration facilities, take into account drainage and ecological protection, and ensure normal use of the road and urban flood control and drainage.

[0004] The rainwater drainage system for municipal roads on the market is composed of fixed drainage pipe networks and manually and electrically controlled valves. During use, personnel detection operation or electrical equipment control is used to adjust the drainage rate according to the amount of rainfall, avoid pipe network overload or water resource waste, and personnel operation can flexibly adjust the valve opening degree according to the actual water accumulation situation on site, adapt to the drainage needs of different road sections, and electrical equipment operation can realize remote control and timing start and stop, reducing the workload of manual inspection. In order to improve the response efficiency of the drainage system, the prior art installs liquid level sensors and electric actuators at key nodes of the pipe network to monitor the water accumulation height in real time and automatically trigger the valve opening and closing. In order to reduce the drainage lag problem under extreme weather conditions, the prior art uses an intelligent control module with multiple sensor linkages and program preset logic to accurately control the opening amplitude and drainage time of the valve. However, this method cannot maintain normal drainage function when power is off, equipment fails or sensors fail, and the smoothness of positioning is insufficient, affecting the drainage scheduling and fault repair efficiency in emergency situations, thereby reducing the reliability of the device. SUMMARY

[0005] The purpose of the present application is to provide a rainwater drainage system for municipal roads, which solves the problem of difficulty in timely drainage of the rainwater drainage system for municipal roads in the event of equipment failure and personnel absence.

[0006] To achieve the above purpose, the technical scheme is as follows: The utility model provides a rainwater drainage system of municipal road, including water storage tank, the left side of water storage tank is connected with rainwater groove, the right side of rainwater groove is connected with impurity groove, the inside of water storage tank is provided with drainage mechanism, drainage mechanism can prevent overflow, the inside of rainwater groove is provided with filter mechanism, filter mechanism can filter rainwater, the inside of water storage tank is provided with maintenance mechanism, maintenance mechanism can clean the device conveniently, The drainage mechanism includes spring telescopic rod and baffle, a plurality of spring telescopic rods are arranged on the inner side of the water storage tank, the outer side of the spring telescopic rod is fixedly connected with a waterproof sleeve, the bottom of the spring telescopic rod is fixedly connected with a piston plate, the outer side of the baffle is fixedly connected with the waterproof sleeve, the right bottom of the water storage tank is provided with a drain port, the top of the outer side of the water storage tank is provided with an operating assembly, the outer side of the impurity groove is provided with a supporting assembly, and the bottom of the outer side of the water storage tank is provided with a positioning assembly.

[0007] Through the above technical scheme, rainwater is collected by the rainwater groove, and the collected rainwater gradually gathers in the water storage tank. As the rainwater continuously accumulates in the water storage tank, the pressure generated by the rainwater drives the spring telescopic rod to move. The expansion and contraction of the spring telescopic rod drives the piston plate to move. Since the waterproof sleeve is connected with the piston plate and the baffle is fixed on the waterproof sleeve, the waterproof sleeve and the baffle move synchronously with the piston plate. When the water storage tank is full of rainwater, the piston plate moves to the lowest position, the baffle moves, the drain port is exposed, and the excess rainwater in the tank is automatically discharged. After the water level drops, the baffle is blocked again under the action of the related structure, the whole drainage process does not need manual detection and additional mechanical equipment assistance, and the automatic drainage function is realized.

[0008] Preferably, the filter mechanism further includes a cross plate rotatably connected to the inner side of the rainwater groove. The outer side of the spring telescopic rod is fixedly connected with a half gear. The inner side of the rainwater groove is fixedly connected with a filter screen and a filter plate two. The bottom of the filter plate two is slidably connected with a filter plate one. The front and rear sides of the filter plate one are fixedly connected with a mounting plate. The bottom of the mounting plate is fixedly connected with a rack. The right side of the rack is fixedly connected with a spring rod. The right side of the spring rod is fixedly connected with the water storage tank. The rack is meshingly connected with the half gear. The top of the impurity groove is provided with a sealing assembly.

[0009] Through the above technical solution, after the rainwater trough receives rainwater, the flowing rainwater impacts the cross plate, causing the cross plate and its half gear to start rotating. During the rotation of the half gear, it drives the rack that meshes with it to move. At the same time, the rack moves, pulling the spring rod to extend and retract. When the spring rod returns to its original position, the elastic potential energy generated cooperates with the movement of the rack to jointly drive the mounting plate and filter plate one to move along filter plate two. This movement method can effectively prevent impurities from clogging filter plate two during the rainwater filtration process. After the rainwater is filtered by the filter screen, it is discharged from the device, while the impurities are sent into the impurity tank for collection along the filter screen. This design performs preliminary treatment of rainwater while draining it.

[0010] Preferably, the maintenance mechanism includes a rotating column rotatably connected to the inner center of the piston plate. A movable plate one is fixedly connected to the bottom of the rotating column. Rotating plates are rotatably connected to both the left and right sides of the movable plate one. A movable plate two is rotatably connected to the outer side of the rotating plate. The movable plate two is slidably connected to the piston plate. Locking blocks are fixedly connected to both the left and right sides of the movable plate two. The bottom of the spring telescopic rod passes through the piston plate and is fixedly connected to a plugging block. The locking block engages with the plugging block. A movable plate is fixedly connected to the bottom of the impurity trough. The movable plate engages with the water storage tank. A hinge two is fixedly connected to the bottom of the rainwater trough. The rainwater trough is rotatably connected to the water storage tank via the hinge two. A connecting component is provided on the inner side of the movable plate.

[0011] The above technical solution involves first inserting the spring telescopic rod into the piston plate and fixing it with the plug-in block. By rotating the rainwater trough using the hinge, the impurity trough and the movable plate can be opened and closed, thereby opening the top of the water storage tank and facilitating cleaning and maintenance inside the tank. When the rotating column is operated, the movable plate 1 on the rotating column will move accordingly. The movement of movable plate 1 will push the rotating plate, which in turn will drive movable plate 2. Movable plate 2 will simultaneously drive the locking block to move. The insertion and disassembly of the plug-in block can be completed by moving the locking block. This design makes the internal cleaning and maintenance of the device more convenient and effectively improves the convenience of the device.

[0012] Preferably, the operating component includes a handle, and a plurality of the handles are respectively disposed around the top of the outer side of the water tank. Screws are threadedly connected to the upper and lower sides of the inside of the handle. The handle is threadedly connected to the water tank by the screws. A protective sleeve is fixedly connected to the inside right side of the water tank. A threaded rod is rotatably connected to the inside of the protective sleeve. A threaded post is threadedly connected to the outside of the threaded rod. A baffle is fixedly connected to the outside of the threaded post.

[0013] The above technical solution enables the device to be held by a handle fixed with screws.

[0014] Preferably, the support assembly includes brackets, two brackets are fixedly connected to the front and rear of the impurity tank respectively, a connecting plate is fixedly connected to the bottom of the brackets, and the outer side of the connecting plate is fixedly connected to the movable plate.

[0015] The above technical solution improves the stability of the impurity tank by using a bracket and a connecting plate.

[0016] Preferably, the positioning component includes positioning blocks, and a plurality of positioning blocks are fixedly connected to the bottom perimeter of the outer side of the water storage tank, and positioning holes are provided on the outer side of the positioning blocks.

[0017] The above technical solution allows the device to be fixed by inserting a threaded component into the positioning block.

[0018] Preferably, the drainage mechanism further includes a knob, which is rotatably connected to the top right side of the water storage tank, and the bottom of the knob passes through the water storage tank and is fixedly connected to a threaded rod.

[0019] The above technical solution allows the threaded rod to rotate by turning the knob.

[0020] Preferably, the sealing assembly includes a movable door, which is disposed on the inner top of the impurity tank. A plurality of hinges are fixedly connected to the outer side of the movable door, and the movable door is rotatably connected to the impurity tank through the hinges.

[0021] The above technical solution enables the movable door to rotate via the connection of hinge one.

[0022] Preferably, the connecting component includes connecting blocks, two of which are slidably connected to the front and rear sides of the interior of the movable plate, and connecting grooves are provided on the front and rear sides of both the water storage tank and the connecting component, and the connecting blocks engage with the connecting grooves.

[0023] The above technical solution involves fixing the connecting block by inserting it into the threaded groove.

[0024] Preferably, the maintenance mechanism further includes nuts, with multiple nuts threaded around the top of the water tank, and the bottom of the nuts penetrating the water tank and threadedly connected to the spring telescopic rod.

[0025] The above technical solution allows for the auxiliary fixing of the spring telescopic rod by rotating the nut.

[0026] In summary, the present invention has at least one of the following beneficial technical effects: 1. This invention collects rainwater from a rainwater trough using a water storage tank. As the rainwater gradually accumulates, it pushes a spring telescopic rod, which in turn moves a piston plate. The waterproof sleeve and its baffle also move synchronously with the piston plate. When the water storage tank is full and the piston plate reaches the bottom, the baffle moves to expose the drain outlet, draining excess rainwater from the tank. After the water level drops, the baffle will re-block the drain outlet. The entire process requires no manual inspection or mechanical equipment assistance, enabling automatic drainage and thus improving the reliability of the device.

[0027] 2. In this invention, after receiving rainwater through the rainwater trough, the flowing rainwater will drive the cross plate and the half gear on the plate to rotate. When the half gear rotates, it drives the rack that meshes with it to move, and at the same time pulls the spring rod to extend and retract. Subsequently, the elastic potential energy generated by the spring rod returning to its original position, together with the movement of the rack, will drive the mounting plate and filter plate one to move along filter plate two, so as to prevent impurities from clogging filter plate two during filtration. After the rainwater is filtered by the filter screen, it is discharged, and the impurities are sent to the impurity trough for collection along the filter screen, so as to perform preliminary treatment of rainwater while draining water, thereby improving the practicality of the device.

[0028] 3. In this invention, after the spring telescopic rod is inserted into the piston plate and fixed by the plug-in block, the rainwater trough can be rotated by the hinge, which can drive the impurity trough and the movable plate to open and close, thereby opening the top of the water storage tank for easy cleaning and maintenance of the tank. At the same time, the rotating column and the first movable plate on it are operated. The movement of the first movable plate will push the rotating plate, which in turn drives the second movable plate. The second movable plate will simultaneously drive the locking block to move. The insertion and disassembly of the plug-in block can be completed by the movement of the locking block, which can facilitate the cleaning and maintenance of the inside of the device, thereby improving the convenience of the device. Attached Figure Description

[0029] Figure 1 This is a perspective view of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a partial structural breakdown diagram of the present invention; Figure 5 This is a partial structural breakdown diagram of the present invention; Figure 6 This is a partial structural diagram of the drainage mechanism of the present invention; Figure 7 This is a partial structural exploded view of the filtration mechanism of the present invention; Figure 8 This is a partial structural exploded view of the maintenance mechanism of the present invention.

[0030] The components include: 1. Water storage tank; 2. Drainage mechanism; 21. Spring telescopic rod; 22. Waterproof sleeve; 23. Piston plate; 24. Protective sleeve; 25. Threaded rod; 26. Threaded column; 27. Operating component; 271. Handle; 272. Screw; 28. Support component; 281. Bracket; 282. Connecting plate; 29. ​​Positioning component; 291. Positioning block; 292. Positioning hole; 210. Baffle; 211. Knob; 212. Drain outlet; 3. Filtering mechanism; 31. Cross plate; 32. Half gear; 33. Rack and pinion; 34. Spring rod; 35. Filter screen; 36. Mounting plate; 37. Filter plate one; 38. Filter plate two; 39. Sealing assembly; 391. Movable door; 392. Hinge one; 4. Maintenance mechanism; 41. Rotating column; 42. Moving plate one; 43. Rotating plate; 44. Moving plate two; 45. Insert block; 46. Locking block; 47. Movable plate; 48. Hinge two; 49. Connecting assembly; 491. Connecting block; 492. Connecting groove; 410. Nut; 5. Rainwater trough; 6. Impurity trough. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 -Appendix Figure 8 The present invention will be further described in detail below.

[0032] This invention provides a rainwater drainage system for municipal roads, including a water storage tank 1, a rainwater trough 5 connected to the left side of the water storage tank 1, a sludge trough 6 connected to the right side of the rainwater trough 5, a drainage mechanism 2 installed inside the water storage tank 1 to prevent overflow, a filter mechanism 3 installed inside the rainwater trough 5 to filter rainwater, and a maintenance mechanism 4 installed inside the water storage tank 1 to facilitate cleaning of the device. The drainage mechanism 2 includes a spring telescopic rod 21 and a baffle 210. Multiple spring telescopic rods 21 are respectively arranged around the top of the inner side of the water storage tank 1. A waterproof sleeve 22 is fixedly connected to the outside of the spring telescopic rod 21. The bottom of the spring telescopic rod 21 is fixedly connected to a piston plate 23, which moves up and down along the water storage tank 1. A baffle 210 is fixedly connected to the outside of the threaded column 26. The outside of the baffle 210 is fixedly connected to the waterproof sleeve 22. A drain outlet 212 is opened at the bottom right side of the water storage tank 1. The drain outlet 212 can discharge water. At the same time, the baffle 210 can block the drain outlet 212 when it comes into contact with the drain outlet 212 through the adhesion and sealing of its own rubber material to prevent water from overflowing. An operating component 27 is provided on the top of the outer side of the water storage tank 1. A support component 28 is provided on the outside of the impurity tank 6. A positioning component 29 is provided on the bottom of the outer side of the water storage tank 1. Specifically, by burying the water storage tank 1 underground, the rainwater trough 5 above it is exposed on the surface and acts as a rainwater well. At this time, the rainwater collected by the rainwater trough 5 can flow into the water storage tank 1. As the rainwater accumulates, it will push the piston plate 23 to move and pull the spring telescopic rod 21. During this process, the waterproof sleeve 22 and the baffle 210 on it will move together with the piston plate 23. When the water storage tank 1 is full and the piston plate 23 moves to the bottom, the baffle 210 will also move, exposing the drain outlet 212 and draining the excess water in the water storage tank 1. When it is not moving, the baffle 210 can prevent water from overflowing through its own rubber material adhesion and sealing. As the water level drops, the baffle 210 will re-seal the drain outlet 212, realizing the automatic drainage function without manual detection and mechanical equipment assistance.

[0033] The filtration mechanism 3 also includes a cross plate 31, which is rotatably connected to the middle of the inner side of the rainwater trough 5. Half gears 32 are fixedly connected to the front and rear sides of the outer side of the spring telescopic rod 21. A filter screen 35 is fixedly connected to the top of the inner side of the rainwater trough 5. The filter screen 35 can intercept and filter rainwater. A second filter plate 38 is fixedly connected to the top of the inner side of the rainwater trough 5. A first filter plate 37 is slidably connected to the bottom of the second filter plate 38. Mounting plates 36 are fixedly connected to the front and rear sides of the first filter plate 37. The first filter plate 37 and the mounting plate 36 can move along the second filter plate 38. A rack 33 is fixedly connected to the bottom of the mounting plate 36. A spring rod 34 is fixedly connected to the right side of the rack 33. The right side of the spring rod 34 is fixedly connected to the water storage tank 1. The extension and elastic potential energy of the spring rod 34 can reset the rack 33. The rack 33 is meshed with the half gear 32. The rotation of the half gear 32 can push the rack 33 to move. A sealing component 39 is provided on the top of the impurity trough 6. Specifically, after the rainwater trough 5 receives rainwater, the flowing rainwater will drive the cross plate 31 and its half gear 32 to rotate. When the half gear 32 rotates, it will drive the rack 33 that meshes with it to move, and at the same time pull the spring rod 34 to retract. With the elastic potential energy of the spring rod 34 when it returns to its original position and the movement of the rack 33, the mounting plate 36 and the first filter plate 37 can be driven to move along the second filter plate 38, thereby preventing impurities from clogging the second filter plate 38 during the filtration process. Subsequently, the rainwater is discharged after being filtered by the filter screen 35, and the impurities are collected by the filter screen 35 and sent to the impurity trough 6 for storage.

[0034] Maintenance mechanism 4 includes a rotating column 41, which is rotatably connected to the inner center of piston plate 23. A movable plate 42 is fixedly connected to the bottom of the rotating column 41. Rotating plates 43 are rotatably connected to both the left and right sides of movable plate 42. The movement of the rotating plate 43 will drive the movable plate 42 to move. A movable plate 44 is rotatably connected to the outer side of the rotating plate 43. Movable plate 44 is slidably connected to piston plate 23. The rotating plate 43 will push movable plate 44 to move as movable plate 42 moves. Locking blocks 46 are fixedly connected to both the left and right sides of movable plate 44. The bottom of spring telescopic rod 21 passes through piston plate. 23 is fixedly connected to a plug-in block 45, and a locking block 46 engages with the plug-in block 45. The movable locking block 46 can fix the plug-in block 45. The spring telescopic rod 21 is fixedly fixed to the piston plate 23. The bottom of the impurity tank 6 is fixedly connected to a movable plate 47, which engages with the water storage tank 1. The engagement of the movable plate 47 with the water storage tank 1 can protect the top of the water storage tank 1. The bottom of the rainwater trough 5 is fixedly connected to a hinge 2 48. The rainwater trough 5 is rotatably connected to the water storage tank 1 through the hinge 2 48. The rainwater trough 5 can rotate along the water storage tank 1 through the hinge 2 48. A connecting component 49 is provided on the inner side of the movable plate 47. Specifically, after the spring telescopic rod 21 is inserted into the piston plate 23, it can be fixed by the plug-in block 45. By rotating the rainwater trough 5 through the hinge 2 48, the impurity trough 6 and the movable plate 47 can be opened and closed, opening the top of the water storage tank 1 for internal cleaning and maintenance. At the same time, the rotating column 41 and the movable plate 1 42 on it are operated. The movement of the movable plate 1 42 will push the rotating plate 43 to move accordingly, which in turn will drive the movable plate 2 44 to move. The movement of the movable plate 2 44 will synchronously drive the locking block 46 on it to move. The insertion and removal of the plug-in block 45 can be achieved by the movement of the locking block 46.

[0035] The operating component 27 includes handles 271, with multiple handles 271 respectively disposed around the top of the outer side of the water storage tank 1. Screws 272 are threadedly connected to the upper and lower sides of the inside of the handles 271. The handles 271 are threadedly connected to the water storage tank 1 through the screws 272, which can fix the water storage tank 1. The support component 28 includes brackets 281, with two brackets 281 respectively fixedly connected to the front and rear of the outside of the impurity tank 6. A connecting plate 282 is fixedly connected to the bottom of the brackets 281. The outer side of the connecting plate 282 is fixedly connected to the movable plate 47. The brackets 281 and the connecting plate 282 can fix the impurity tank 6 and the movable plate 47. A protective sleeve 24 is fixedly connected to the right side of the inside of the water storage tank 1. A threaded rod 25 is rotatably connected to the inner side of the protective sleeve 24. A threaded post 26 is threadedly connected to the outer side of the threaded rod 25. Rotating the threaded rod 25 can drive the threaded post 26 to move up and down. Specifically, the handle 271 facilitates the gripping and handling of the device, and the screw 272 allows for the disassembly and assembly of the handle 271 according to usage requirements. The bracket 281 and its connecting plate 282 enhance the stability of the installation between the impurity tank 6 and the movable plate 47. Rotating the threaded rod 25 can drive the threaded column 26 to move up and down.

[0036] The positioning component 29 includes positioning blocks 291, and multiple positioning blocks 291 are fixedly connected to the bottom periphery of the outer side of the water storage tank 1. Positioning holes 292 are provided on the outer side of the positioning blocks 291. The device can be fixed by inserting threaded parts into the positioning holes 292. The drainage mechanism 2 also includes a knob 211, which is rotatably connected to the top right side of the water storage tank 1. The bottom of the knob 211 passes through the water storage tank 1 and is fixedly connected to the threaded rod 25. Rotating the knob 211 can drive the threaded rod 25 to rotate. Specifically, by inserting a threaded component into the positioning hole 292 in the positioning block 291, the device can be installed and fixed by the threaded component, and the threaded rod 25 can be easily operated and controlled manually by rotating the knob 211.

[0037] The sealing assembly 39 includes a movable door 391, which is located on the inner top of the impurity tank 6. Multiple hinges 392 are fixedly connected to the outer side of the movable door 391. The movable door 391 is rotatably connected to the impurity tank 6 through the hinges 392, and the movable door 391 can be opened and closed to clean impurities through the hinges 392. The connecting assembly 49 includes a connecting block 491, with two connecting blocks 491 slidably connected to the front and rear sides of the inner side of the movable plate 47. The water tank 1 and the front and rear sides of the connecting assembly 49 are provided with connecting grooves 492. The connecting blocks 491 engage with the connecting grooves 492, and the water tank 1 and the movable plate 47 can be fixed through the engagement of the connecting blocks 491 and the connecting grooves 492. The maintenance mechanism 4 also includes nuts 410, with multiple nuts 410 threadedly connected to the top of the water tank 1 around the perimeter. The bottom of the nuts 410 penetrates the water tank 1 and is threadedly connected to the spring telescopic rod 21. The spring telescopic rod 21 can be further fixed by rotating the nuts 410. Specifically, the hinge 392 can open and close the movable door 391 to clean the impurities collected in the impurity tank 6. By moving the connecting block 491 along the movable plate 47, the connecting block 491 can be engaged with the connecting groove 492, which can help fix the water storage tank 1 to the movable plate 47. By rotating the nut 410, the water storage tank 1 and the spring telescopic rod 21 can be disassembled and reassembled for replacement.

[0038] Working principle: By burying the water storage tank 1 underground, the rainwater trough 5 above it is exposed on the surface and acts as a rainwater well. The water storage tank 1 can collect rainwater from the rainwater trough 5. As the rainwater accumulates, it can push the spring telescopic rod 21 and move the piston plate 23. At this time, as the piston plate 23 moves, the waterproof sleeve 22 and the baffle 210 on it will also move. When the water storage tank 1 is full and the piston plate 23 has moved to the bottom, the baffle 210 will also move and the drain outlet 212 will be exposed, draining the excess water from the water storage tank 1. As the drain water flow decreases, the drain outlet 212 will be blocked again by the baffle 210. In this way, drainage can be carried out by itself without the need for personnel inspection and mechanical equipment. Furthermore, rainwater can be received through the rainwater trough 5. As the rainwater flows, it can drive the cross plate 31 and its half gear 32 to rotate. As the half gear 32 rotates, it can drive the meshing gear 33 to move and pull the spring rod 34 to extend and retract. As the elastic potential energy of the spring rod 34 is restored and the rack 33 moves, it can drive the mounting plate 36 and the first filter plate 37 to move along the second filter plate 38. This prevents impurities from clogging the second filter plate 38 during filtration. Then, the impurities are collected and drained through the filter screen 35. Finally, the impurities are sent into the impurity trough 6 for collection along the filter screen 35. Finally, the spring telescopic rod 21 can be inserted into the piston plate 23 and fixed by the plug-in block 45. Then, the rainwater trough 5 can be rotated by the second hinge 48, which drives the impurity trough 6 and the movable plate 47 to open and close, opening the top of the water storage tank 1 for internal cleaning and maintenance. At the same time, the rotating column 41 and the moving plate 42 on it are operated. At this time, the movement of the moving plate 42 will push the rotating plate 43 on it to move. At this time, the movement of the rotating plate 43 can drive the moving plate 44 to move. At this time, the movement of the moving plate 44 will synchronously drive the locking block 46 on it to move. In this way, the plug-in block 45 can be inserted and disassembled by the movement of the locking block 46.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stormwater drainage system for municipal roads, comprising a water storage tank (1), characterized in that, The left side of the water storage tank (1) is connected to a rainwater trough (5), and the right side of the rainwater trough (5) is connected to a sludge trough (6). The water storage tank (1) is equipped with a drainage mechanism (2) to prevent overflow. The rainwater trough (5) is equipped with a filter mechanism (3) to filter rainwater. The water storage tank (1) is equipped with a maintenance mechanism (4) to facilitate cleaning of the device. The drainage mechanism (2) includes a spring telescopic rod (21) and a baffle (210). Multiple spring telescopic rods (21) are respectively arranged around the top of the inner side of the water storage tank (1). A waterproof sleeve (22) is fixedly connected to the outside of the spring telescopic rod (21). A piston plate (23) is fixedly connected to the bottom of the spring telescopic rod (21). The outside of the baffle (210) is fixedly connected to the waterproof sleeve (22). A drain outlet (212) is opened at the bottom right side of the water storage tank (1). An operating component (27) is provided at the top outside of the water storage tank (1). A support component (28) is provided on the outside of the impurity tank (6). A positioning component (29) is provided at the bottom outside of the water storage tank (1).

2. A stormwater drainage system for municipal roads according to claim 1, characterized in that, The filtration mechanism (3) also includes a cross plate (31), which is rotatably connected to the middle of the inner side of the rainwater trough (5). Half gears (32) are fixedly connected to the front and rear sides of the spring telescopic rod (21). A filter screen (35) is fixedly connected to the top of the inner side of the rainwater trough (5). A second filter plate (38) is fixedly connected to the top of the inner side of the rainwater trough (5). A first filter plate (37) is slidably connected to the bottom of the second filter plate (38). An installation plate (36) is fixedly connected to the front and rear sides of the first filter plate (37). A rack (33) is fixedly connected to the bottom of the installation plate (36). A spring rod (34) is fixedly connected to the right side of the rack (33). The right side of the spring rod (34) is fixedly connected to the water storage tank (1). The rack (33) meshes with the half gear (32). A sealing component (39) is provided on the top of the impurity trough (6).

3. A stormwater drainage system for municipal roads according to claim 1, characterized in that, The maintenance mechanism (4) includes a rotating column (41), which is rotatably connected to the inner middle of the piston plate (23). A movable plate (42) is fixedly connected to the bottom of the rotating column (41). Rotating plates (43) are rotatably connected to the left and right sides of the movable plate (42). A movable plate (44) is rotatably connected to the outer side of the rotating plate (43). The movable plate (44) is slidably connected to the piston plate (23). A locking block (46) is fixedly connected to the left and right sides of the movable plate (44). The bottom of the spring telescopic rod (21) passes through the piston plate (23) and is fixedly connected to the plug block (45). The locking block (46) engages with the plug block (45). The bottom of the impurity trough (6) is fixedly connected to the movable plate (47). The movable plate (47) engages with the water storage tank (1). The bottom of the rainwater trough (5) is fixedly connected to the second hinge (48). The rainwater trough (5) is rotatably connected to the water storage tank (1) through the second hinge (48). A connecting component (49) is provided on the inner side of the movable plate (47).

4. A stormwater drainage system for municipal roads according to claim 1, characterized in that, The operating component (27) includes a handle (271), and multiple handles (271) are respectively arranged around the top of the outer side of the water tank (1). The upper and lower sides of the inside of the handle (271) are threaded with screws (272). The handle (271) is threaded to the water tank (1) through the screws (272). The inner right side of the water tank (1) is fixedly connected with a sleeve (24). The inner side of the sleeve (24) is rotatably connected with a threaded rod (25). The outer side of the threaded rod (25) is threaded with a threaded column (26). The outer side of the threaded column (26) is fixedly connected with a baffle (210).

5. A stormwater drainage system for municipal roads according to claim 3, characterized in that, The support assembly (28) includes a bracket (281), two brackets (281) are fixedly connected to the front and rear of the impurity tank (6) respectively, and a connecting plate (282) is fixedly connected to the bottom of the bracket (281), and the outer side of the connecting plate (282) is fixedly connected to the movable plate (47).

6. A stormwater drainage system for municipal roads according to claim 1, characterized in that, The positioning component (29) includes positioning blocks (291), and multiple positioning blocks (291) are fixedly connected to the bottom of the outer side of the water storage tank (1). Positioning holes (292) are provided on the outer side of the positioning blocks (291).

7. A stormwater drainage system for municipal roads according to claim 1, characterized in that, The drainage mechanism (2) also includes a knob (211), which is rotatably connected to the top right side of the water storage tank (1). The bottom of the knob (211) passes through the water storage tank (1) and is fixedly connected to the threaded rod (25).

8. A stormwater drainage system for municipal roads according to claim 2, characterized in that, The sealing assembly (39) includes a movable door (391), which is located on the top inner side of the impurity tank (6). Multiple hinges (392) are fixedly connected to the outer side of the movable door (391), and the movable door (391) is rotatably connected to the impurity tank (6) through the hinges (392).

9. A stormwater drainage system for municipal roads according to claim 3, characterized in that, The connecting component (49) includes a connecting block (491), and two connecting blocks (491) are slidably connected to the front and rear sides of the interior of the movable plate (47). The water storage tank (1) and the connecting component (49) are provided with connecting grooves (492) on the front and rear sides, and the connecting blocks (491) and connecting grooves (492) are engaged.

10. A stormwater drainage system for municipal roads according to claim 3, characterized in that, The maintenance mechanism (4) also includes nuts (410), a plurality of nuts (410) being threaded around the top of the water tank (1), and the bottom of the nuts (410) penetrating the water tank (1) and being threadedly connected to the spring telescopic rod (21).