A smart drainage system for rainwater reuse and its method of application to prevent clogging in sewers

Abstract

This invention relates to an intelligent drainage device and method for preventing clogging in sewers and reusing rainwater, belonging to the technical field of drainage devices. The device addresses the problems of easy clogging in traditional drainage systems, waste of rainwater resources, and inconvenience in cleaning fallen leaves from flower beds, providing a solution. The technical solution encompasses a sewer system pre-buried underground, a drainage pipe connected to the sewer, a collection box, and a ground-level flower bed. The drainage pipe contains a filtration mechanism and a drive assembly, achieving dynamic filtration of rainwater through the reciprocating movement of a filter disc, effectively preventing clogging. The collection box collects and stores the filtered rainwater for use in flower bed spraying, achieving rainwater reuse. A cleaning mechanism is installed within the flower bed to automatically clean fallen leaves using the collected rainwater. Through a multi-stage filtration system, an intelligent leaf cleaning mechanism, and a rainwater reuse design, the device improves drainage efficiency, saves valuable water resources, and reduces maintenance costs, making it suitable for urban roads, parks, and other locations.

Description

Technical Field

[0001] This invention belongs to the field of drainage device technology, and relates to an intelligent drainage device for rainwater reuse and anti-clogging of sewers, as well as its usage method. Background Technology

[0002] With the acceleration of urbanization, the construction and maintenance of urban drainage systems have become an important part of ensuring the normal operation of cities. In particular, in terms of rainwater discharge, how to efficiently and environmentally treat rainwater, prevent sewer blockage, and realize the reuse of rainwater has become an urgent problem to be solved in the field of urban drainage.

[0003] Traditional urban drainage systems typically employ a simple drainage pipe network structure, where rainwater is directly discharged into sewers and then flows into rivers or lakes. However, this drainage method has many drawbacks. First, rainwater easily carries a large amount of impurities such as silt and leaf fragments during the discharge process. These impurities gradually accumulate in the drainage pipes, easily causing blockages, affecting drainage efficiency, and even leading to urban flooding. Second, traditional drainage systems lack effective utilization of rainwater, resulting in the waste of a large amount of precious rainwater resources, which is inconsistent with the concept of sustainable development.

[0004] To address these issues, existing technologies have proposed several improvements, such as installing filters or grilles inside drainage pipes to intercept impurities in rainwater. However, these filters are prone to clogging and require regular cleaning, increasing maintenance costs. Furthermore, in urban greening, cleaning fallen leaves from flower beds and other greening facilities is also a challenge. Traditional methods of leaf cleaning rely mainly on manual sweeping, which is not only inefficient but also labor-intensive. Especially during the rainy season, fallen leaves easily flow into drainage pipes with rainwater, further exacerbating the problem of clogging.

[0005] Therefore, we propose an intelligent drainage device and method for preventing clogging in sewers by reusing rainwater, in order to solve the problems mentioned above. Summary of the Invention

[0006] In view of this, in order to solve the above problems, the present invention provides a smart drainage device for rainwater reuse and a method for preventing clogging in sewers.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a smart drainage device for rainwater reuse and anti-clogging of sewers, comprising:

[0008] Pre-buried underground sewers;

[0009] A drain pipe that is vertically connected to a sewer, wherein the top of the drain pipe is provided with a manhole cover, the manhole cover includes a manhole edge fixedly installed at the top of the drain pipe and a cover plate hinged in the manhole edge, and the top of the cover plate is provided with multiple drainage holes;

[0010] A filtration mechanism installed inside a drain pipe includes a filter disc and a drive assembly. The top of the filter disc has multiple first filter holes, each containing a filter screen. The filter disc has a communicating cavity connected to the multiple first filter holes. The bottom of the communicating cavity is connected to a collection box via a first fixed pipe. A second fixed pipe is fixedly installed through the top of the filter disc to guide rainwater when the first filter holes are blocked.

[0011] A collection box is pre-buried underground, which is connected to a drain pipe via an extension pipe and to a sewer via an overflow pipe;

[0012] A flower bed set on the ground, the flower bed is equipped with a cleaning mechanism, the cleaning mechanism uses rainwater collected in a collection box to clean the fallen leaves in the flower bed;

[0013] The drive assembly drives the filter disc to move up and down repeatedly to prevent the filter holes from becoming clogged. Rainwater enters the drain pipe through the drain hole, is filtered through the first filter hole, flows into the connecting cavity, and then enters the collection box through the first fixed pipe for cleaning fallen leaves from the flower bed.

[0014] As a further improvement to the above technical solution:

[0015] The drive assembly includes a support plate fixedly installed inside the drain pipe, a mounting box fixedly installed on the top of the support plate, a motor installed inside the mounting box, a sliding rod slidably connected through the top of the support plate and the mounting box, the top end of the sliding rod being fixedly connected to the filter disc, and the output end of the motor being drivenly connected to the sliding rod; a groove is formed on the inner wall of the drain pipe above the filter disc.

[0016] A push block is fixedly installed on the outer wall of the sliding rod, and a spring is sleeved on the outer wall of the sliding rod. The two ends of the spring abut against the top of the push block and the top wall of the mounting box, respectively. A cam that abuts against the push block is fixedly sleeved on the output end of the motor.

[0017] A first filter plate is fixedly installed inside the collection box, which divides the collection box into a clean water zone and an impurity zone. One end of the extension tube is located in the impurity zone.

[0018] A guide pipe is provided through one side of the extension pipe. One end of the guide pipe is located in the clear water zone, and the other end is fixedly mounted on the support plate. The bottom end of the first fixed pipe is slidably mounted on the top end of the guide pipe.

[0019] The top of the filter disc is fixedly provided with multiple support rods, which are T-shaped and whose top length corresponds to the drain hole.

[0020] As the filter disc moves up and down, the support rod rises and falls within the drain hole to assist in cleaning impurities.

[0021] The flower bed includes an outer box, an inner box inside the outer box, two drainage channels are formed between the outer box and the inner box, and the drainage channels are inclined. The inner box is provided with a grid plate located on the soil.

[0022] The cleaning mechanism includes a spray pipe that is fixedly installed through the outer casing. The outer wall of the spray pipe is provided with two rows of nozzles. A water pump is provided in the clean water area. The drain end of the water pump is connected to one end of the spray pipe through a connecting pipe. The other end of the spray pipe is sealed.

[0023] Two inclined baffles are fixedly installed on the top of the outer casing;

[0024] When the water pump starts, rainwater is sprayed out through the nozzles to clean fallen leaves into the drainage ditch.

[0025] A filter box is provided at the bottom of one end of the flower bed. The filter box includes a connecting box, which is connected to two drainage channels. A second filter plate is fixedly installed inside the connecting box. An inspection port is provided on the top of the connecting box, and a sealing cover is hinged inside the inspection port. The connecting box is connected to the sewer through a connecting pipe, and one end of the connecting pipe is located below the second filter plate.

[0026] The drain pipe is equipped with a third filter plate corresponding to the extension pipe, and the third filter plate is inclined.

[0027] Rainwater passes through the second fixed pipe and is filtered by the third filter plate before flowing into the extension pipe.

[0028] A method of using the aforementioned rainwater reuse-based intelligent drainage system for preventing sewer blockage includes:

[0029] S1. Rainwater enters the drain pipe through the drain hole, is filtered through the first filter hole of the filter disc, enters the connecting cavity, and then flows into the collection box through the first fixed pipe.

[0030] S2. When the first filter hole is blocked, rainwater enters the drain pipe through the second fixed pipe, is filtered by the third filter plate, and then flows into the impurity area of ​​the collection box through the extension pipe or is directly discharged into the sewer.

[0031] S3. The drive assembly drives the filter disc to move up and down to prevent the filter holes from clogging, while the support rod moves up and down in the drain hole to assist in cleaning.

[0032] S4. Using the rainwater in the clear water area of ​​the collection box, the flower bed is sprayed with water through the water pump and spray pipe, and the fallen leaves are washed into the drainage ditch and then discharged into the sewer after being filtered by the filter box.

[0033] The beneficial effects of this invention are as follows:

[0034] 1. The intelligent drainage device for rainwater reuse and anti-clogging of sewers disclosed in this invention achieves dynamic filtration of rainwater by setting a filter disc and a drive component inside the drainage pipe. The drive component uses a motor to drive the filter disc to move up and down reciprocally, effectively preventing the filter holes from clogging. At the same time, the support rod on the top of the filter disc corresponds to the drainage hole on the manhole cover. When the filter disc moves, the support rod can assist in cleaning the drainage hole, further reducing the possibility of clogging and greatly improving the stability and reliability of the drainage system.

[0035] 2. The intelligent drainage device for rainwater reuse and anti-clogging of sewers disclosed in this invention, through the design of the collection box, can collect filtered rainwater and use a water pump to transport the collected rainwater to the sprinkler pipe in the flower bed, and spray the flower bed through the sprinkler head, realizing the reuse of rainwater. It not only saves water resources, but also reduces the cost of urban greening irrigation, and has significant economic and environmental benefits.

[0036] 3. The intelligent drainage device for rainwater reuse and anti-clogging of sewers disclosed in this invention has a filtration structure installed in the drain pipe, collection box, and flower bed drainage trough, forming a multi-stage filtration system. The third filter plate in the drain pipe, the first filter screen on the filter disc, the first filter plate in the collection box, and the second filter plate in the flower bed filter box together constitute a comprehensive filtration of rainwater, effectively removing impurities such as mud, sand, and leaf fragments from the rainwater, ensuring the smooth flow of the drainage system and the cleanliness of the collected rainwater.

[0037] 4. The intelligent drainage device for rainwater reuse and anti-clogging of sewers disclosed in this invention uses rainwater collected in the collection box to automatically clean fallen leaves in flower beds through a water pump and spray pipe. This not only improves cleaning efficiency but also reduces the cost and labor intensity of manual cleaning. At the same time, the design of the inclined drainage channel and baffle allows fallen leaves to be flushed into the drainage channel and discharged more smoothly, further improving the cleaning effect.

[0038] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0039] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0040] Figure 1This is a cross-sectional structural schematic diagram of an intelligent drainage device for rainwater reuse and anti-clogging of sewers according to the present invention.

[0041] Figure 2 This is a cross-sectional view of the collection box of an intelligent drainage device for rainwater reuse and anti-clogging of sewers according to the present invention.

[0042] Figure 3 This is a schematic diagram of the filter disc installation structure of an intelligent drainage device for rainwater reuse and anti-clogging of sewers according to the present invention.

[0043] Figure 4 This is a cross-sectional view of the filter disc of an intelligent drainage device for rainwater reuse and anti-clogging of sewers according to the present invention.

[0044] Figure 5 for Figure 3 Enlarged structural diagram of section A in the middle;

[0045] Figure 6 This is a cross-sectional view of the manhole cover of an intelligent drainage device for rainwater reuse and anti-clogging of sewers, according to the present invention.

[0046] Figure 7 This is a schematic cross-sectional view of a flower bed structure for a rainwater reuse and anti-clogging intelligent drainage device for sewers according to the present invention.

[0047] Figure 8 This is a schematic diagram of the filter box structure of an intelligent drainage device for rainwater reuse and anti-clogging of sewers according to the present invention.

[0048] Attached reference numerals: 1. Sewer; 2. Drain pipe; 3. Manhole cover; 4. Flower bed; 41. Outer box; 42. Inner box; 43. Grating; 44. Sprinkler pipe; 45. Nozzle; 46. Baffle; 47. Drainage trough; 5. Collection box; 6. Overflow pipe; 7. First filter plate; 8. Water pump; 9. Extension pipe; 10. Filter box; 101. Connection box; 102. Inspection port; 103. Sealing cover; 104. Second filter plate; 11. Connecting pipe; 12. 13. Clear water zone; 14. Impurity zone; 15. Connecting pipe; 16. Guide pipe; 17. Support plate; 18. First fixed pipe; 19. Filter plate; 20. First filter hole; 21. Groove; 22. Second fixed pipe; 23. Third filter plate; 24. Connecting cavity; 25. Support rod; 26. Mounting box; 27. Motor; 28. Sliding rod; 29. ​​Spring; 30. Push block; 31. Cam; 32. Well edge; 33. Cover plate; 34. Drain hole. Detailed Implementation

[0049] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0050] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0051] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0052] Example 1

[0053] like Figures 1-8 As shown, a smart drainage device for rainwater reuse and anti-clogging of sewer systems includes a sewer 1, which is pre-buried underground and serves as the main channel for urban rainwater discharge. Its diameter is designed according to the drainage needs of the area, with common diameters being 300mm, 400mm, and 500mm. A drainage pipe 2 is also pre-buried underground and vertically connected to the sewer 1. The diameter of the drainage pipe 2 is usually slightly smaller than that of the sewer 1. For example, if the diameter of the sewer 1 is 500mm, the diameter of the drainage pipe 2 can be designed to be 400mm to ensure that rainwater can flow smoothly into the sewer 1.

[0054] The top of the drain pipe 2 is equipped with a manhole cover 3, which consists of a manhole edge 31 fixed to the top of the drain pipe 2 and a cover plate 32 hinged within the manhole edge 31. The manhole edge 31 is made of high-strength cast iron and is fixed to the top of the drain pipe 2 by bolts or welding to ensure its stability. The cover plate 32 is also made of cast iron and has multiple drainage holes 33 on its top. The drainage holes 33 are 1 cm in diameter and 2 cm in diameter, which can ensure that rainwater flows smoothly into the drain pipe 2 and effectively prevent larger debris, such as branches and plastic bags, from entering the drain pipe 2 and causing blockages.

[0055] A filtration mechanism is installed inside the drain pipe 2, which mainly consists of a filter disc 18 and a drive assembly. The filter disc 18 is made of stainless steel, featuring corrosion resistance and high strength. The filter disc 18 is a cone-shaped truncated cone with multiple first filter holes 19 on its conical surface. Each first filter hole 19 has a diameter of 10 cm and contains a filter screen made of nylon with a pore size of 1-2 mm, effectively filtering impurities such as mud, sand, and leaf fragments from rainwater. A connecting cavity 23 is provided inside the filter disc 18, communicating with the multiple first filter holes 19. The bottom end of the connecting cavity 23 is connected to the collection box 5 via a first fixed pipe 17. The first fixed pipe 17 is made of PVC, and its inner diameter is designed according to the size of the filter disc 18 and the drainage volume, generally 50-80 mm. The collection box 5 has a quick-release cover for easy cleaning of impurities.

[0056] A second fixing pipe 21 is fixedly installed through the top of the filter disc 18. The second fixing pipe 21 is also made of PVC material, and its inner diameter is slightly larger than that of the first fixing pipe 17. For example, when the inner diameter of the first fixing pipe 17 is 60mm, the inner diameter of the second fixing pipe 21 can be designed to be 80mm. When the first filter hole 19 is blocked, rainwater can continue to flow downward through the second fixing pipe 21 to avoid poor drainage and ensure the normal operation of the drainage system. At the same time, it can ensure that when it rains lightly, the rainwater will first be discharged into the collection box 5.

[0057] The drive assembly includes a support plate 16 fixed inside the drain pipe 2. The support plate 16 is made of stainless steel and is fixed to the inner wall of the drain pipe 2 by welding. A mounting box 25 is fixed to the top of the support plate 16. The mounting box 25 is made of plastic, offering advantages such as light weight and corrosion resistance, and is fixed to the support plate 16 by bolts. A motor 26 is bolted into the mounting box 25. The motor 26 is a low-power, high-torque DC motor, typically with a power between 50-100W. The torque can be selected according to the weight and movement requirements of the filter disc 18 to ensure stable up-and-down movement of the filter disc 18.

[0058] To achieve the driving function, a single sliding rod 27 is slidably mounted through the top of the support plate 16 and the mounting box 25. The sliding rod 27 is made of stainless steel with a smooth surface to reduce friction. The top of the sliding rod 27 is fixedly connected to the filter disc 18, which can be achieved by welding or threaded connection. The output end of the motor 26 is connected to the sliding rod 27 for transmission. Specifically, a cam 30 is fixedly mounted on the output end of the motor 26. The cam 30 is made of engineering plastic, and its shape and size are designed according to the moving distance and frequency of the sliding rod 27. It is preferably elliptical. A push block 29, made of stainless steel, is fixed to the sliding rod 27 by welding. A spring 28 is mounted on the outer wall of the sliding rod 27, and both ends of the spring 28 abut against the top of the push block 29 and the top wall of the mounting box 25 through spring 28 seats, respectively. The spring 28 is made of high-strength spring steel. Its elastic coefficient is selected according to the weight and movement requirements of the filter disc 18 to ensure that it can provide enough elastic force to reset the filter disc 18. A water level sensor can be installed on the roadside to detect water accumulation on the road. When water accumulation is detected, the motor 26 is started to clean it.

[0059] When motor 26 starts, cam 30 rotates and pushes push block 29, causing sliding rod 27 to drive filter disc 18 to move up and down reciprocally. Spring 28 acts as a buffer and reset mechanism. The frequency of up and down movement of filter disc 18 can be controlled by adjusting the speed of motor 26 according to actual needs, generally set to 10-20 times per minute. A groove 20 with a depth of 10-15mm is opened on the inner wall of drain pipe 2 above filter disc 18. Since filter disc 18 is conical, filtered impurities will preferentially be discharged into groove 20. When the filter disc 18 moves upward, the groove 20 is located below the filter disc 18. At this time, the impurities in the groove 20 can be discharged downward under the impact of the water flow, reducing the accumulation of impurities on the filter disc 18, thereby extending the service life of the filter disc 18 and reducing maintenance costs. At the same time, the top of the filter disc 18 is also fixedly equipped with a support rod 24 (high-strength stainless steel) corresponding to the drain hole 33, so that the filter disc 18 can drive the support rod 24 to move up and down in the drain hole 33 during the process of moving up and down. During the movement, the impurities on the drain hole 33 can be pushed out, causing the impurities to be displaced and avoiding affecting the drainage efficiency.

[0060] The drain pipe 2 and the collection box 5 are connected by an extension pipe 9. The extension pipe 9 is made of PVC, and its inner diameter is designed according to the drainage volume of the drain pipe 2 and the capacity of the collection box 5, generally 80-100mm. The drain pipe 2 is equipped with a third filter plate 22 corresponding to the extension pipe 9. The third filter plate 22 is inclined and made of stainless steel, with a pore size of 8-12mm. It can initially filter larger impurities in the rainwater, such as stones and branches, to prevent impurities from directly entering the collection box 5 and causing blockage or damage to the collection box 5.

[0061] Flower bed 4 includes an outer box 41 and an inner box 42, both made of concrete or plastic, providing strength and stability. Two drainage channels 47 are formed between the outer box 41 and the inner box 42, and these channels 47 are inclined at an angle of 10-15° to facilitate rapid drainage of flushing water and prevent water accumulation. The inner box 42 contains a grating plate 43 (to be cleaned regularly) placed on the soil. The grating plate 43 is made of plastic or stainless steel with a mesh size of 15-20mm to prevent soil erosion.

[0062] Example 2

[0063] Reference Figures 1-8 This invention provides a novel technical solution: a smart drainage device for rainwater reuse and anti-clogging of sewers. A collection tank 5 is connected to the sewer 1 via an overflow pipe 6, which is made of PVC and has an inner diameter the same as or slightly larger than that of the extension pipe 9. When the water level in the collection tank 5 is too high, rainwater can flow into the sewer 1 through the overflow pipe 6, preventing rainwater from overflowing from the collection tank 5 and affecting the surrounding environment. A first filter plate 7, made of stainless steel, is fixedly installed inside the collection tank 5, dividing the collection tank 5 into a clear water zone 12 and a sludge zone 13. A maintenance channel is provided above the sludge zone 13, allowing for periodic cleaning of sludge within the sludge zone 13. One end of the extension pipe 9 is located within the sludge zone 13, allowing rainwater flowing in from the drain pipe 2 to first enter the sludge zone 13 for sedimentation.

[0064] A guide pipe 15 is installed through one side of the extension pipe 9. The guide pipe 15 is made of PVC, and its inner diameter is designed according to the drainage requirements of the collection box 5, generally 50-70mm. One end of the guide pipe 15 is located in the clean water zone 12, and the other end is fixed on the support plate 16. The bottom end of the first fixed pipe 17 is slidably mounted on the top end of the guide pipe 15. When the filter disc 18 moves up and down, the first fixed pipe 17 can slide up and down on the top end of the guide pipe 15 to ensure that rainwater can flow smoothly into the collection box 5.

[0065] The cleaning mechanism is located inside the flower bed 4, using rainwater collected in the collection box 5 to clean the fallen leaves within the flower bed 4. The cleaning mechanism includes a spray pipe 44 fixedly mounted on the outer casing 41. The spray pipe 44 is made of PVC, and its diameter is designed according to the size of the flower bed 4 and cleaning needs, generally 25-40mm. The outer wall of the spray pipe 44 has two rows of nozzles 45, made of plastic, spaced 20-30cm apart. The spray angle can be adjusted according to actual needs, generally 30-60°, to ensure complete coverage of the fallen leaves within the flower bed 4.

[0066] A water pump 8 is installed in the clear water area 12. The water pump 8 is a low-power, high-lift submersible pump, with a power generally between 100-200W. The lift is selected based on the height of the nozzle 44 and the water pressure of the nozzle 45, typically 5-10m. The drain end of the water pump 8 is connected to one end of the nozzle 44 via a connecting pipe 14 made of PVC, with the same inner diameter as the nozzle 44. The other end of the nozzle 44 is sealed to prevent rainwater leakage. When it is necessary to remove fallen leaves, the water pump 8 is activated to draw out the rainwater in the clear water area 12 and spray it out through the nozzle 45. The powerful water flow can flush the fallen leaves in the flower bed 4 into the drainage trough 47.

[0067] Two inclined baffles 46 are fixedly installed on the top of the outer box 41. The baffles 46 are made of plastic or stainless steel and the inclination angle is 20-30°. They can prevent fallen leaves from being washed out of the flower bed 4 by the water flow and guide the fallen leaves into the drainage ditch 47.

[0068] A filter box 10 is provided at the bottom of one end of the flower bed 4. The filter box 10 includes a connecting box 101, which is made of concrete or plastic and has a certain capacity and strength. The connecting box 101 is connected to two drainage channels 47, allowing rainwater and fallen leaves flowing out of the drainage channels 47 to enter the connecting box 101.

[0069] A second filter plate 104 is fixedly installed inside the connecting box 101. The second filter plate 104 is made of stainless steel and has a pore size of 5-8mm. It can further filter impurities such as mud, sand, and small leaf fragments from the flushing water flowing in from the drain trough 47. An inspection port 102 is provided on the top of the connecting box 101. The size of the inspection port 102 is designed according to the size of the connecting box 101 and cleaning requirements, generally 300mm × 300mm. A sealing cover 103 is hinged inside the inspection port 102. The sealing cover 103 is made of plastic or stainless steel and is connected to the connecting box 101 via a hinge, facilitating periodic opening and cleaning of impurities inside the connecting box 101.

[0070] The connecting box 101 is connected to the sewer 1 via a connecting pipe 11. The connecting pipe 11 is made of PVC, and its inner diameter is designed according to the drainage requirements of the connecting box 101, generally 80-100mm. One end of the connecting pipe 11 is located below the second filter plate 104 to ensure that the filtered flushing water can flow smoothly into the sewer 1 and prevent impurities from entering the sewer 1 and causing blockage.

[0071] When it rains lightly, rainwater can enter the drain pipe 2 through the drain hole 33, and then be filtered through the filter screen on the first filter hole 19. The filtered rainwater enters the connecting cavity 23, and then enters the clean water area 12 through the first fixed pipe 17 and the guide pipe 15 in sequence for storage.

[0072] When it rains heavily or the filter screen on the first filter hole 19 is clogged, the water level in the drain pipe 2 will gradually increase, allowing rainwater to be discharged into the drain pipe 2 through the second fixed pipe 21 and filtered through the third filter plate 22. This allows some rainwater to carry impurities into the impurity area 13 through the extension pipe 9, while the other part of the rainwater is directly discharged into the sewer 1.

[0073] When the external water level detector detects that the water level is high, the motor 26 is started. The motor 26 can drive the cam 30 to rotate. During the rotation of the cam 30, it can push the push block 29 to drive the sliding rod 27 to move upward. The upward movement of the sliding rod 27 can drive the filter disc 18 to move upward, so that the filter disc 18 moves above the groove 20. At this time, the impurities accumulated on the filter disc 18 can be washed down by the rainwater. The downflowing impurities can be filtered through the third filter plate 22, so that the filtered impurities flow into the impurity area 13.

[0074] At the same time, as the filter disc 18 moves upward, it can also drive the support rod 24 to move upward. As the support rod 24 moves upward, it can pass through the drain hole 33, which can push out the impurities that are attached to the drain hole 33, causing the impurities to shift and effectively preventing the well cover 3 from becoming clogged.

[0075] When it is necessary to clean the fallen leaves on the top of the grating plate 43, the water pump 8 in the clean water zone 12 is started, so that the rainwater in the clean water zone 12 enters the spray pipe 44 through the connecting pipe 14, and then sprays out through the nozzle 45. The water flow washes the fallen leaves on the grating plate 43 outward, and with the help of the baffle 46, the fallen leaves fall into the drainage trough 47 and flow into the connecting box 101 along with the flushing water. The fallen leaves are then filtered through the second filter plate 104, so that the water is discharged into the sewer 1 through the connecting pipe 11.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A rainwater recycling sewer anti-clogging intelligent drainage device, characterized in that, Include: The sewer (1) is embedded in the ground; The drain pipe (2) is vertically communicated with the sewer (1), the top of the drain pipe (2) is provided with a manhole cover (3), the manhole cover (3) comprises a curb (31) fixedly arranged at the top end of the drain pipe (2) and a cover plate (32) hingedly arranged in the curb (31), a plurality of drain holes (33) are formed in the top of the cover plate (32); The filter mechanism is arranged in the drain pipe (2), the filter mechanism comprises a filter disc (18) and a driving assembly, a plurality of first filter holes (19) are formed in the top of the filter disc (18), a filter screen is arranged in each first filter hole (19), a communication cavity (23) is formed in the filter disc (18) and communicated with the plurality of first filter holes (19), the bottom end of the communication cavity (23) is communicated with the collecting box (5) through a first fixed pipe (17), and the top of the filter disc (18) penetrates and is fixedly provided with a second fixed pipe (21) for guiding rainwater when the first filter hole (19) is blocked; The collecting box (5) is embedded in the ground, the collecting box (5) is communicated with the drain pipe (2) through an extension pipe (9) and is communicated with the sewer (1) through an overflow pipe (6); The flower bed (4) is arranged on the ground, the flower bed (4) is provided with a cleaning mechanism, and the cleaning mechanism uses the rainwater collected in the collecting box (5) to clean the fallen leaves in the flower bed (4); Wherein, the driving assembly drives the filter disc (18) to reciprocate up and down to prevent the filter hole from being blocked; rainwater enters the drain pipe (2) through the drain hole (33), flows into the communication cavity (23) after being filtered by the first filter hole (19), and then enters the collecting box (5) through the first fixed pipe (17) to clean the fallen leaves in the flower bed; The driving assembly comprises a support plate (16) fixedly arranged in the drain pipe (2), the top of the support plate (16) is fixedly provided with a mounting box (25), the mounting box (25) is provided with a motor (26), the top of the support plate (16) and the mounting box (25) penetrates and is slidably provided with a same sliding rod (27), the top end of the sliding rod (27) is fixedly connected with the filter disc (18), and the output end of the motor (26) is drivingly connected with the sliding rod (27); The inner wall of the drain pipe (2) is provided with a groove (20) located above the filter disc (18).

2. The rainwater recycling sewer anti-clogging intelligent drainage device according to claim 1, characterized in that, The outer wall of the sliding rod (27) is fixedly provided with a push block (29), the outer wall of the sliding rod (27) is sleeved with a spring (28), the two ends of the spring (28) are respectively abutted with the top of the push block (29) and the top wall of the mounting box (25), and the output end of the motor (26) is fixedly sleeved with a cam (30) abutting against the push block (29).

3. The rainwater recycling sewer anti-clogging intelligent drainage device according to claim 2, characterized in that, The first filter plate (7) is fixedly arranged in the collecting box (5), the first filter plate (7) divides the collecting box (5) into a clean water area (12) and a impurity area (13), and one end of the extension pipe (9) is located in the impurity area (13). One side of the extension pipe (9) is provided with a flow guide pipe (15), one end of the flow guide pipe (15) is located in the clean water area (12), and the other end is fixedly arranged on the support plate (16), and the bottom end of the first fixed pipe (17) is slidingly arranged at the top end of the flow guide pipe (15).

4. The rainwater recycling sewer anti-clogging intelligent drainage device according to claim 3, characterized in that, A plurality of support rods (24) are fixedly arranged on the top of the filter disc (18), the support rods (24) are T-shaped, and the length of the top end of the support rods (24) corresponds to the drain hole (33); Wherein, when the filter disc (18) moves up and down, the support rod (24) rises and falls in the drain hole (33) to assist in cleaning impurities.

5. The rainwater recycling sewer anti-clogging intelligent drainage device according to claim 4, characterized in that, The flower bed (4) comprises an outer box (41), an inner box (42) is arranged in the outer box (41), two drainage grooves (47) are formed between the outer box (41) and the inner box (42), the drainage grooves (47) are inclined, and a grid plate (43) is arranged in the inner box (42) and located on the soil.

6. The rainwater recycling sewer anti-clogging intelligent drainage device according to claim 5, characterized in that, The cleaning mechanism comprises a spray pipe (44) fixedly arranged through the outer box (41), the outer wall of the spray pipe (44) is provided with two rows of spray heads (45), the clean water area (12) is provided with a water pump (8), the water outlet end of the water pump (8) is connected with one end of the spray pipe (44) through a connecting pipe (14), and the other end of the spray pipe (44) is sealed; Two inclined baffles (46) are fixedly arranged on the top of the outer box (41); When the water pump (8) is started, rainwater is sprayed out through the spray heads (45) to clean fallen leaves into the drainage grooves (47).

7. The rainwater-reusing sewer anti-clogging intelligent drainage device according to claim 6, characterized in that, One end of the bottom of the flower bed (4) is provided with a filter box (10), the filter box (10) comprises a connecting box (101), the connecting box (101) is connected with the two drainage grooves (47), a second filter plate (104) is fixedly arranged in the connecting box (101), a maintenance opening (102) is formed in the top of the connecting box (101), a sealing cover (103) is hingedly connected in the maintenance opening (102), the connecting box (101) and the sewer (1) are connected through a communication pipe (11), and one end of the communication pipe (11) is located below the second filter plate (104).

8. The rainwater-reusing sewer anti-clogging intelligent drainage device according to claim 7, characterized in that, The drainage pipe (2) is provided with a third filter plate (22) corresponding to the extension pipe (9), and the third filter plate (22) is inclined; Wherein, after the rainwater passes through the second fixed pipe (21), it flows into the extension pipe (9) through the third filter plate (22).

9. A method of using the rainwater recycling sewer anti-clogging intelligent drainage device according to claim 8, characterized in that, Comprise: S1, rainwater enters the drainage pipe (2) through the drain hole (33), is filtered through the first filter hole (19) of the filter disc (18), and then flows into the collecting box (5) through the first fixed pipe (17); S2, when the first filter hole (19) is blocked, rainwater enters the drainage pipe (2) through the second fixed pipe (21), is filtered through the third filter plate (22), and then flows into the impurity area (13) of the collecting box (5) through the extension pipe (9) or is directly discharged into the sewer (1); S3, the drive assembly drives the filter disc (18) to move up and down to prevent the filter hole from being blocked, and the support rod (24) rises and falls in the drain hole (33) to assist in cleaning; S4, the rainwater in the water collection tank (5) in the clean water area (12) is sprayed on the flower bed (4) through the water pump (8) and the spray pipe (44), the fallen leaves are flushed into the drain groove (47), and then filtered through the filter tank (10) and discharged into the sewer (1).

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