Rainwater pipe network opening structure for municipal water conservancy

By combining multi-layer filters and flow regulation mechanisms, the problems of insufficient flow regulation and debris blockage in traditional rainwater pipe network structures are solved, achieving efficient graded filtration and flow regulation of rainwater, protecting the pipe network structure, and improving drainage efficiency and reliability.

CN223780935UActive Publication Date: 2026-01-09SHANDONG GENGHANG CONSTRUCTION ENGINEERING CO LTD +1
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Patent Information

Application Number
CN202520142969.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-01-09
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

Traditional rainwater pipe network structures lack effective regulation of rainwater flow, resulting in the inability to quickly disperse and orderly guide rainwater into the pipe network when rainfall is too heavy. This can easily cause local water accumulation and damage to the pipe network due to excessive water flow. At the same time, debris can easily accumulate and cause blockages, making cleaning difficult and costly.

Method used

It adopts a multi-layer filter structure, including outer, middle and inner filter layers, to filter rainwater in stages according to pore size. It is equipped with a flow regulation mechanism and diversion pipes, uses a flow sensor to monitor rainwater flow, baffles to adjust the rainwater inflow area under different rainfall conditions, and spiral guide plates to reduce impact. The filter is designed to be inclined and coated with a hydrophobic layer to facilitate the sliding off of debris.

Benefits of technology

It enables graded filtration of rainwater and flexible flow adjustment, preventing debris from entering the pipe network, reducing the risk of blockage, protecting the pipe network structure, improving drainage efficiency, and reducing cleaning difficulty and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pipe network ports, and discloses a municipal water utilization rainwater pipe network port structure which comprises a bottom plate, the top face of the bottom plate is rotationally connected with a plurality of rotating shafts, the top faces of the rotating shafts are rotationally connected with a top plate, and the outer wall of the rotating shaft on the outer side is fixedly connected with an outer layer filter screen. A middle filter screen is fixedly connected to the outer wall of the middle rotating shaft, an inner filter screen is fixedly connected to the outer wall of the inner rotating shaft, collecting grooves are formed in the two sides of the outer wall of the bottom plate, a rainwater pipe is fixedly connected to the rear side of the bottom plate, and hydrophobic coatings are arranged on the surfaces of the outer walls of the outer filter screen, the middle filter screen and the inner filter screen. Rainwater is filtered through the multiple layers of filter screens with different hole diameters, sundries are prevented from entering a pipe network, the filter screens incline and are subjected to hydrophobic coating treatment, the sundries slide into the collecting tank, the filter screens are installed on the rotating shaft and automatically rotate when blocked, water flow is kept smooth, and the sundries are shaken off into the collecting tank.
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Description

Technical Field

[0001] This utility model relates to the field of pipe network outlet technology, and in particular to a structure for a municipal water utilization rainwater pipe network outlet. Background Technology

[0002] In urban municipal water conservancy projects, rainwater pipe networks play a crucial role in collecting and discharging rainwater. Traditional rainwater pipe network inlets have a relatively simple structure, consisting of only an opening with a grille. This structure has many drawbacks. During heavy rain, a large amount of debris flows into the pipe network inlet with the rainwater and easily accumulates at the grille, causing blockage of the drain outlet. This prevents rainwater from flowing into the pipe network in a timely and smooth manner, leading to urban flooding. The filtration effect of ordinary grilles is limited, and some small debris can still enter the pipe network and gradually accumulate inside, reducing the effective drainage cross-section of the pipe network. Over the long term, this affects the drainage capacity of the entire rainwater pipe network system. Furthermore, cleaning these accumulated debris is difficult and costly.

[0003] A search revealed Chinese Patent Publication No. CN216195262U, which discloses a municipal water utilization rainwater pipe network inlet structure. The structure includes a main pipe with two limiting blocks fixedly installed on both the top and bottom inner walls. A filter box is movably installed between the two sets of limiting blocks. Two mounting structures are fixedly installed on the bottom inner wall of the filter box, each containing a first filter plate and a second filter plate. Two upright plates are fixedly installed on the top of the filter box, with limiting plates hinged to the adjacent sides of the two upright plates. A cleaning structure is provided on the filter box. The mounting structures include mounting blocks. This utility model is simple to operate and convenient to use. By setting up the mounting and cleaning structures, it achieves the function of quick disassembly and cleaning of the filter screen, removing debris attached to the filter screen and leaving it in the filter box. The setting of two filter plates with different pore sizes can prevent impurities from falling into the pipe and causing blockage. However, the above structure lacks an effective function for regulating rainwater flow. When the rainfall is too heavy, the rainwater cannot be quickly dispersed and orderly guided into the pipe network, easily causing local water accumulation and excessive water flow impact that damages the pipe network. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a municipal water utilization rainwater pipe network inlet structure, aiming to improve the existing technology's lack of effective rainwater flow regulation function. When the rainfall is too heavy, the rainwater cannot be quickly dispersed and orderly guided into the pipe network, which can easily cause local water accumulation and damage to the pipe network due to excessive water flow impact.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a municipal water utilization rainwater pipe network inlet structure, comprising a base plate, a plurality of rotating shafts rotatably connected to the top surface of the base plate, a top plate rotatably connected to the top surface of the rotating shafts, an outer layer filter screen fixedly connected to the outer wall of the outer rotating shaft, a middle layer filter screen fixedly connected to the outer wall of the middle rotating shaft, and an inner layer filter screen fixedly connected to the outer wall of the inner rotating shaft. Collection grooves are provided on both sides of the outer wall of the base plate, and a rainwater pipe is fixedly connected to the rear side of the base plate. A flow regulating mechanism is provided on the outer wall of the rainwater pipe for regulating the rainwater flow.

[0006] Through the above technical solution: the base plate provides reliable support for the entire pipe network structure. Multiple rotating shafts are designed on the top surface of the base plate, rotatably connected to it, allowing for flexible movement of the upper structure. The top surface of each rotating shaft is also rotatably connected to a top plate, enabling the shafts to flexibly adjust their angle and position between the top and bottom plates to adapt to different situations. An outer layer of filter screen is tightly fixed to the outer wall of the outermost rotating shaft. This outer filter screen, with its large mesh area, effectively intercepts rainwater debris such as tree branches, large plastic fragments, and other large objects, preventing them from entering the pipe network and causing blockages. The middle rotating shaft... A middle layer filter screen is fixed to the outer wall of the rotating shaft. The mesh of the middle layer filter screen is finer than that of the outer layer filter screen, which can further filter out impurities such as small stones, clumps of silt and medium-sized impurities, allowing rainwater to be initially purified. The innermost rotating shaft outer wall is fixed with an inner layer filter screen, which removes fine particles and dust remaining in the rainwater, reducing the burden on subsequent water treatment. Collection tanks are set on both sides of the outer wall of the base plate. When the outer layer filter screen intercepts a large amount of debris, these debris will slide into the collection tank under the flushing of rainwater and its own gravity, making it easy to clean them later and preventing debris from accumulating and affecting the normal operation of the pipe network.

[0007] As a further description of the above technical solution:

[0008] The flow regulation mechanism includes a fixed frame, the bottom surface of which is fixedly connected to the outer wall of the rainwater pipe, a cylinder fixedly connected to the inner wall of the fixed frame, a baffle fixedly connected to the other end of the cylinder, the outer wall of the baffle being slidably connected to the inner wall of the rainwater pipe, a flow sensor fixedly connected to the inner wall of the rainwater pipe, and a diversion pipe connected to the outer wall of the rainwater pipe.

[0009] The above technical solution involves a mounting bracket erected on the outer wall of the rainwater pipe. A cylinder is securely installed on the inner wall of the bracket, and the other end of the cylinder is fixedly connected to a baffle. The outer wall of the baffle slides against the inner wall of the rainwater pipe, and its surface undergoes a special smoothing treatment to effectively reduce frictional resistance between the baffle and the inner wall of the rainwater pipe. This allows the baffle to move quickly and smoothly back and forth within the rainwater pipe under the drive of the cylinder, thereby flexibly changing the flow cross-sectional area inside the rainwater pipe. A flow sensor is also fixedly installed on the inner wall of the rainwater pipe. The flow sensor can monitor the flow velocity and flow rate of the water in the rainwater pipe in real time and accurately, and quickly transmit this data to the connected control center. The control center determines that the water flow needs to be adjusted based on a preset flow threshold, and then sends a command to the cylinder to drive the baffle to perform the corresponding action. The outer wall of the rainwater pipe is also connected to a diversion pipe. If the flow rate in the rainwater pipe is too high and exceeds the normal drainage load, the diversion pipe will reasonably divert some of the rainwater to other drainage paths, ensuring stable and efficient drainage operation.

[0010] As a further description of the above technical solution:

[0011] A fixed column is fixedly connected to the top surface of the base plate, and a spiral guide plate is provided on the inner wall of the diversion pipe.

[0012] The above technical solution involves a fixed connection between the top surface of the base plate and the fixed column, ensuring that the fixed column can stand firmly on top. A spiral guide plate is installed on the inner wall of the diversion pipe. The spiral guide plate guides the water flow from the pipe inlet, so that the water flow entering the diversion pipe moves in an orderly manner along the spiral trajectory, effectively improving the stability of the water flow velocity, reducing the direct impact of rainwater on the pipe network, and protecting the pipe network structure.

[0013] As a further description of the above technical solution:

[0014] The inner filter screen and the outer wall of the fixed column are both fixedly connected by connecting rings, and a tension spring is provided between two adjacent connecting rings.

[0015] Through the above technical solution: the inner filter screen and the outer wall of the fixed column are both fixedly connected with connecting rings to bear the tension of subsequent components. A tension spring is installed between two adjacent connecting rings, which is always in a moderately stretched state to apply tension to the inner filter screen, so that the inner filter screen can maintain a good filtration shape.

[0016] As a further description of the above technical solution:

[0017] The top surface of the base plate is provided with a nozzle, and the bottom of the nozzle is connected to a water outlet pipe.

[0018] The above technical solution involves installing a nozzle on the top surface of the base plate, which is connected to the water outlet pipe to spray a strong stream of water to backwash and clean the filter screen.

[0019] As a further description of the above technical solution:

[0020] The bottom of the rainwater pipe is connected to an inlet pipe, and one end of the inlet pipe is connected to a water storage tank.

[0021] Through the above technical solution: the bottom surface of the rainwater pipe is connected to an inlet pipe, which accurately transports the collected rainwater to the water storage tank, and the water storage tank provides an environment for the storage and treatment of rainwater.

[0022] As a further description of the above technical solution:

[0023] The water storage tank is equipped with a high-pressure water pump, one end of which is connected to one end of the water outlet pipe.

[0024] Through the above technical solution: the bottom surface of the rainwater pipe is connected to an inlet pipe, which accurately transports the collected rainwater to the water storage tank. The water storage tank provides an environment for the storage and treatment of rainwater. A high-pressure water pump is installed inside the water storage tank. One end of the high-pressure water pump is connected to one end of the outlet pipe, which pushes the rainwater in the water storage tank to the nozzle with strong pressure.

[0025] As a further description of the above technical solution:

[0026] The outer wall surfaces of the outer, middle, and inner filter layers are provided with hydrophobic coatings, and the outer, middle, and inner filter layers are designed with an inclined shape.

[0027] Through the above technical solution, the outer, middle, and inner filter screens are all uniformly coated with a hydrophobic coating. This allows water droplets to quickly slide off when the filter screen comes into contact with rainwater, preventing clogging and maintaining high-efficiency filtration performance. This ensures the filter screen can work stably and for a long time. The outer, middle, and inner filter screens are all designed with an incline, which ensures that rainwater slides quickly and smoothly down the filter screen surface under its own gravity and collects in the rainwater pipe. This also prevents impurities from accumulating excessively on the filter screen surface, greatly improving the reliability and durability of the entire rainwater collection and filtration system.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the front end of the structure composed of multiple layers of stainless steel filter screen filters rainwater in stages according to the size of the pores to prevent debris from entering the pipe network. The filter screen is tilted and treated with a hydrophobic coating so that the debris slides into the collection tank. The filter screen is installed on a rotating shaft and rotates automatically when blocked to keep the water flow smooth and shake the debris into the collection tank.

[0030] 2. In this utility model, the baffle remains at a high position during light rain, allowing rainwater to flow directly into the rainwater pipe. As rainfall increases, the flow sensor triggers, causing the baffle to lower, expanding the rainwater inflow area and preventing water accumulation. During heavy rain, the baffle rises to its highest position, allowing rainwater to flow in through the diversion pipes on both sides and the spiral guide plate, forming a spiral flow that reduces the impact on the pipe network and protects it. Attached Figure Description

[0031] Figure 1 This is a front perspective view of a municipal water utilization rainwater pipe network outlet structure proposed in this utility model;

[0032] Figure 2 This is a partial structural diagram of the outer filter screen of a municipal water utilization rainwater pipe network outlet structure proposed in this utility model;

[0033] Figure 3 This is a partial structural diagram of a tension spring structure for a municipal water utilization rainwater pipe network outlet proposed in this utility model;

[0034] Figure 4 This is a partial structural diagram of a municipal water utilization rainwater pipe network outlet baffle proposed in this utility model;

[0035] Figure 5 This is a partial structural diagram of a municipal water utilization rainwater pipe network outlet structure water storage tank proposed in this utility model.

[0036] Legend:

[0037] 1. Base plate; 2. Flow regulation mechanism; 201. Flow sensor; 202. Diversion pipe; 203. Baffle; 204. Fixing frame; 205. Cylinder; 3. Rotating shaft; 4. Top plate; 5. Outer filter screen; 6. Middle filter screen; 7. Inner filter screen; 8. Collection tank; 9. Rainwater pipe; 10. Fixing column; 11. Connecting ring; 12. Tension spring; 13. Spiral guide plate; 14. Water outlet pipe; 15. Water inlet pipe; 16. Water storage tank; 17. High-pressure water pump; 18. Sprinkler head. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Please see the appendix Figure 1 - Appendix Figure 3An embodiment of this utility model provides a municipal water utilization rainwater pipe network structure, including a base plate 1, a plurality of rotating shafts 3 rotatably connected to the top surface of the base plate 1, a top plate 4 rotatably connected to the top surface of the rotating shafts 3, an outer layer filter screen 5 fixedly connected to the outer wall of the outer rotating shaft 3, a middle layer filter screen 6 fixedly connected to the outer wall of the middle rotating shaft 3, an inner layer filter screen 7 fixedly connected to the outer wall of the inner rotating shaft 3, collection troughs 8 are provided on both sides of the outer wall of the base plate 1, a rainwater pipe 9 is fixedly connected to the rear side of the base plate 1, and a flow regulating mechanism 2 is provided on the outer wall of the rainwater pipe 9 for regulating the rainwater flow.

[0040] Specifically, the base plate 1 provides reliable support for the entire pipe network structure. Multiple rotating shafts 3 are designed on the top surface of the base plate 1, rotatably connected to the base plate 1, allowing for flexible movement of the upper structure. The top surface of the rotating shafts 3 is also rotatably connected to a top plate 4. The rotating shafts 3 can flexibly adjust their angle and position between the top plate 4 and the base plate 1 to adapt to different situations. An outer layer of filter screen 5 is tightly fixed to the outer wall of the outermost rotating shaft 3. With its large mesh area, the outer filter screen 5 first intercepts rainwater debris such as tree branches, large plastic fragments, and other large objects, preventing them from entering the pipe network and causing blockages. The middle rotating shaft... A middle layer filter screen 6 is fixed to the outer wall of shaft 3. The mesh of the middle layer filter screen 6 is finer than that of the outer layer filter screen 5, which can further filter out impurities such as small stones, mud clumps and medium-sized impurities, allowing rainwater to be initially purified. An inner layer filter screen 7 is fixed to the outer wall of the innermost rotating shaft 3, which removes fine particles and dust remaining in the rainwater, reducing the burden on subsequent water treatment. Collection tanks 8 are set on both sides of the outer wall of the base plate 1. When the outer layer filter screen 5 intercepts a large amount of debris, under the flushing of rainwater and its own gravity, these debris will slide into the collection tank 8, which is convenient for subsequent centralized cleaning and avoids the accumulation of debris affecting the normal operation of the pipe network.

[0041] Please see the appendix Figure 4 - Appendix Figure 5 The flow regulating mechanism 2 includes a fixed frame 204, the bottom surface of which is fixedly connected to the outer wall of the rainwater pipe 9, a cylinder 205 fixedly connected to the inner wall of the fixed frame 204, a baffle 203 fixedly connected to the other end of the cylinder 205, the outer wall of the baffle 203 being slidably connected to the inner wall of the rainwater pipe 9, a flow sensor 201 fixedly connected to the inner wall of the rainwater pipe 9, and a diversion pipe 202 connected to the outer wall of the rainwater pipe 9.

[0042] Specifically, a mounting bracket 204 is installed on the outer wall of the rainwater pipe 9. A cylinder 205 is firmly installed on the inner wall of the mounting bracket 204. The other end of the cylinder 205 is fixedly connected to a baffle 203. The outer wall of the baffle 203 is slidably connected to the inner wall of the rainwater pipe 9, and its surface has undergone special smoothing treatment to effectively reduce the frictional resistance between it and the inner wall of the rainwater pipe 9. This allows the baffle 203 to move quickly and smoothly back and forth inside the rainwater pipe 9 under the drive of the cylinder 205, thereby flexibly changing the flow cross-sectional area inside the rainwater pipe 9. A flow... The flow sensor 201 can monitor the flow rate and volume of water in the rainwater pipe 9 in real time and accurately, and quickly transmit this data to the control center connected to it. The control center determines that the water flow needs to be adjusted according to the preset flow threshold, and sends a command to the cylinder 205 to drive the baffle 203 to perform the corresponding action. The outer wall of the rainwater pipe 9 is also connected to the diversion pipe 202. If the flow rate in the rainwater pipe 9 is too large and exceeds the normal drainage load, the diversion pipe 202 will reasonably divert some of the rainwater to other drainage paths to ensure the smooth and efficient operation of drainage.

[0043] Please see the appendix Figure 1 - Appendix Figure 3 A fixed column 10 is fixedly connected to the top surface of the base plate 1. A spiral guide plate 13 is provided on the inner wall of the diversion pipe 202. A connecting ring 11 is fixedly connected to both the inner filter screen 7 and the outer wall of the fixed column 10. A tension spring 12 is provided between the adjacent two connecting rings 11. A nozzle 18 is provided on the top surface of the base plate 1. A water outlet pipe 14 is connected to the bottom of the nozzle 18.

[0044] Specifically, the top surface of the base plate 1 is fixedly connected to the fixed column 10 to ensure that the fixed column 10 can stand firmly on top. The inner wall of the diversion pipe 202 is provided with a spiral guide plate 13, which guides the water flow from the pipe inlet, so that the water flow entering the diversion pipe 202 moves in an orderly manner along the spiral trajectory, effectively improving the stability of the water flow velocity, reducing the direct impact of rainwater on the pipe network, and protecting the pipe network structure. The inner filter screen 7 and the outer wall of the fixed column 10 are fixedly connected with connecting rings 11 to bear the tension of subsequent components. Tension springs 12 are installed between the two adjacent connecting rings 11, which are always in a moderately stretched state to apply tension to the inner filter screen 7, so that the inner filter screen 7 can maintain a good filtration shape. The top surface of the base plate 1 is provided with a nozzle 18, which is connected to the water outlet pipe 14, spraying a strong water flow to backwash the filter screen for cleaning.

[0045] Please see the appendix Figure 3 - Appendix Figure 5The bottom of the rainwater pipe 9 is connected to the inlet pipe 15, one end of the inlet pipe 15 is connected to the water storage tank 16, the inside of the water storage tank 16 is equipped with a high-pressure water pump 17, one end of the high-pressure water pump 17 is connected to one end of the outlet pipe 14, the outer wall surface of the outer filter screen 5, the middle filter screen 6 and the inner filter screen 7 is provided with a hydrophobic coating, and the outer filter screen 5, the middle filter screen 6 and the inner filter screen 7 are designed with an inclination.

[0046] Specifically, the bottom of the rainwater pipe 9 is connected to an inlet pipe 15, which precisely transports the collected rainwater to the storage tank 16. The storage tank 16 provides an environment for rainwater storage and treatment. A high-pressure water pump 17 is installed inside the storage tank 16. One end of the high-pressure water pump 17 is connected to one end of the outlet pipe 14, which pushes the rainwater in the storage tank 16 to the sprinkler head 18 with strong pressure. The outer surface of the outer filter screen 5, the middle filter screen 6, and the inner filter screen 7 are all uniformly coated with a hydrophobic coating. This design allows water droplets to quickly slide off the filter screen when they come into contact with rainwater, preventing clogging and maintaining high filtration efficiency. The outer filter screen 5, middle filter screen 6, and inner filter screen 7 all feature an inclined design, ensuring that rainwater slides quickly and smoothly down the filter screen surface under its own gravity and collects in the rainwater pipe 9. This also prevents impurities from accumulating excessively on the filter screen surface, greatly improving the reliability and durability of the entire rainwater collection and filtration system.

[0047] Working principle: The front end of the structure consists of multiple layers of stainless steel filter screens with different pore sizes. The outer filter screen (5) has a larger pore size, which can initially intercept large debris. The middle filter screen (6) has a moderate pore size, which can filter out medium-sized debris. The inner filter screen (7) has a smaller pore size, which can block fine debris. This achieves graded and fine filtration of rainwater, effectively preventing debris from entering the pipe network. Each filter screen is designed to be inclined, and the surface of the filter screen is treated with a hydrophobic coating, so that debris can be driven along the filter screen surface by the impact of water flow and its own gravity. The water slides into the collection tanks 8 on both sides for easy cleaning. The outer filter screen 5, middle filter screen 6 and inner filter screen 7 are installed on the rotating shaft 3. When a certain part is blocked by debris, causing local water flow obstruction, the impact force of the water flow can cause the outer filter screen 5, middle filter screen 6 and inner filter screen 7 to rotate automatically, so that the unblocked part moves to the water flow channel, ensuring that rainwater flows in smoothly and continuously. At the same time, the rotation action also helps to shake off the debris blocked on the outer filter screen 5, middle filter screen 6 and inner filter screen 7 into the collection tank 8.

[0048] When rainfall is light, the baffle 203 is in a higher position, allowing rainwater to flow directly into the rainwater pipe 9 from below. As rainfall increases, when the flow sensor 201 detects that the rainwater flow exceeds a set threshold, the baffle 203 is automatically raised to increase the inflow area, enabling rainwater to flow quickly into the rainwater pipe 9 and preventing water accumulation at the pipe inlet. When rainfall is heavy, the baffle 203 can be raised to its highest position, at which point rainwater will flow into the rainwater pipe 9 through the diversion pipes 202 located on both sides of the baffle 203. The diversion pipes 202 are equipped with spiral guide plates 13, which can create a spiral flow when the rainwater flows into the rainwater pipe 9, reducing the direct impact of rainwater on the pipe network and protecting the pipe network structure.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A municipal water utilization rainwater pipe network inlet structure, comprising a base plate (1), characterized in that: The top surface of the base plate (1) is rotatably connected to multiple rotating shafts (3), and the top surface of the rotating shafts (3) is rotatably connected to a top plate (4). The outer wall of the outer rotating shaft (3) is fixedly connected to an outer layer filter screen (5), the outer wall of the middle rotating shaft (3) is fixedly connected to a middle layer filter screen (6), and the outer wall of the inner rotating shaft (3) is fixedly connected to an inner layer filter screen (7). Collection grooves (8) are provided on both sides of the outer wall of the base plate (1). A rainwater pipe (9) is fixedly connected to the rear side of the base plate (1). A flow regulating mechanism (2) is provided on the outer wall of the rainwater pipe (9). The flow regulating mechanism (2) is used to regulate the flow of rainwater.

2. The municipal water utilization rainwater pipe network inlet structure according to claim 1, characterized in that: The flow regulation mechanism (2) includes a fixed frame (204), the bottom surface of which is fixedly connected to the outer wall of the rainwater pipe (9), a cylinder (205) is fixedly connected to the inner wall of the fixed frame (204), a baffle (203) is fixedly connected to the other end of the cylinder (205), the outer wall of the baffle (203) is slidably connected to the inner wall of the rainwater pipe (9), a flow sensor (201) is fixedly connected to the inner wall of the rainwater pipe (9), and a diversion pipe (202) is connected to the outer wall of the rainwater pipe (9).

3. The municipal water utilization rainwater pipe network inlet structure according to claim 2, characterized in that: The top surface of the base plate (1) is fixedly connected to a fixed column (10), and the inner wall of the diversion pipe (202) is provided with a spiral guide plate (13).

4. The municipal water utilization rainwater pipe network inlet structure according to claim 1, characterized in that: The inner filter (7) and the outer wall of the fixed column (10) are both fixedly connected with connecting rings (11), and a tension spring (12) is provided between the two adjacent connecting rings (11).

5. The municipal water utilization rainwater pipe network inlet structure according to claim 1, characterized in that: The top surface of the base plate (1) is provided with a nozzle (18), and the bottom of the nozzle (18) is connected to a water outlet pipe (14).

6. The municipal water utilization rainwater pipe network inlet structure according to claim 1, characterized in that: The bottom surface of the rainwater pipe (9) is connected to the water inlet pipe (15), and one end of the water inlet pipe (15) is connected to the water storage tank (16).

7. The municipal water utilization rainwater pipe network inlet structure according to claim 6, characterized in that: The water storage tank (16) is equipped with a high-pressure water pump (17), one end of which is connected to one end of the water outlet pipe (14).

8. The municipal water utilization rainwater pipe network inlet structure according to claim 1, characterized in that: The outer wall surfaces of the outer filter (5), middle filter (6) and inner filter (7) are provided with a hydrophobic coating, and the outer filter (5), middle filter (6) and inner filter (7) are designed with an inclination.

Citation Information

Patent Citations

  • Rainwater pipe network opening structure for municipal water conservancy

    CN216195262U