Sponge city rainwater drainage outlet
By introducing mixing and drainage components into the rainwater drainage outlets of sponge cities, combined with distance sensors and unidirectional components, the problems of unclear water storage and poor purification effect in traditional devices are solved, achieving rapid and effective rainwater collection and storage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG INST OF COMM CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional sponge city rainwater harvesting devices cannot directly observe water storage conditions, and the rainwater collection speed is slow and the purification effect is poor, which affects the water storage and utilization effect.
A sponge city rainwater drainage outlet was designed, comprising a mixing component, a drainage component, and a one-way component. The mixing blades mix flocculant and water flow, and the distance and time sensors monitor the water storage. The piston and spherical block determine the water flow rate and assist in drainage when the water flow is too large.
It enables intuitive monitoring and rapid purification of water storage, improves rainwater collection speed and purification effect, and ensures the effectiveness of water storage and utilization.
Smart Images

Figure CN224549308U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sponge city technology, specifically to a sponge city rainwater drainage outlet. Background Technology
[0002] The drainage function of an ecological sponge city is to combine drainage and flood control facilities with natural water systems and rivers, and to combine surface drainage with underground rainwater pipes to achieve the discharge of general and excessive rainwater, thus avoiding disasters such as flooding. During droughts, the stored water resources can be utilized to a certain extent. This requires a corresponding understanding of the water storage situation. However, traditional collection devices cannot directly observe and understand the water level, and cannot infer the rainfall effect and storage effect from the changes in the water level. Moreover, the current rainwater collection and utilization devices in sponge cities have problems such as slow rainwater collection speed, poor rainwater purification effect, and certain hazards during utilization. Utility Model Content
[0003] To overcome the above-mentioned defects, this utility model provides a rainwater drainage outlet for sponge cities, which solves the technical problem of not knowing the water storage situation inside the storage tank in related technologies.
[0004] According to one aspect, at least one embodiment of the present invention provides a rainwater drainage outlet for a sponge city, comprising: a box body, a support member fixedly connected to the top of the box body, a collection pipe fixedly connected to the top of the support member, an isolation plate fixedly connected to the bottom wall of the inner cavity of the box body, a first support plate fixedly connected inside the box body and to the left end of the isolation plate, and a second support plate fixedly connected inside the box body and above the first support plate.
[0005] A mixing assembly, which is fixed inside the housing and located at the right end of the partition plate, is used for mixing water and flocculant;
[0006] A drainage component is fixed to the top of the first support plate and near the front end. The drainage component is used to determine the degree of water accumulation inside the box.
[0007] A one-way component is fixed to the top of a support plate and near the left end. The one-way component assists in drainage when there is too much water.
[0008] For example, in at least one embodiment of the present invention, a sponge city rainwater drainage outlet is provided, which further includes: the stirring assembly includes a gathering hopper, the gathering hopper is fixed inside the box and located at the right end of the isolation plate, the bottom end of the gathering hopper is fixedly connected to a bottom plate, the top end of the bottom plate is rotatably connected to a stirring rod through a bearing, the upper end of the stirring rod extends above the gathering hopper and is rotatably connected to the top wall of the inner cavity of the box through a bearing, and a stirring blade is fixedly connected to the stirring rod.
[0009] For example, in at least one embodiment of the present invention, a rainwater drainage outlet for a sponge city is provided, which further includes: the drainage component includes a fixed cylinder, the fixed cylinder is fixed to the top of a first support plate and close to the front end, a piston is slidably connected inside the fixed cylinder, a connecting rod is fixedly connected to the top of the piston, the top of the connecting rod extends to the top of the box and is fixedly connected to a spherical block, a guide ring is fixedly connected to the bottom of the box, and the guide ring is slidably connected to the connecting rod inside.
[0010] For example, in a sponge city rainwater drainage outlet provided in at least one embodiment of the present invention, there is an inlet on the fixed cylinder and below the first support plate, a first spring is fixedly connected to the top of the piston and sleeved on the outside of the connecting rod, a bellows is fixedly connected to the top of the piston, and the upper end of the bellows extends to the top of the fixed cylinder.
[0011] For example, in at least one embodiment of the present invention, a rainwater drainage outlet for a sponge city is further provided, including: a distance sensor fixedly connected to the top of the box and below the spherical block, and a time sensor fixedly connected to the top of the box and to the right of the distance sensor.
[0012] For example, in at least one embodiment of the present invention, a sponge city rainwater drainage outlet is provided, which further includes: the one-way component includes a connecting pipe, the connecting pipe is fixed to the top of a first support plate and near the left end, a top frame is fixedly connected inside the connecting pipe and near the top, a fixing ring is fixedly connected to the bottom wall of the inner cavity of the connecting pipe, a connecting cylinder is installed inside the connecting pipe and above the fixing ring, the top of the fixing ring cooperates with the bottom of the connecting cylinder, a second spring is fixedly connected to the bottom wall of the inner cavity of the connecting cylinder, and the top of the second spring is fixedly connected to the bottom of the top frame.
[0013] For example, in at least one embodiment of the present invention, a rainwater drainage outlet for a sponge city is provided, which further includes: a partition plate fixedly connected inside the partition plate, a filter plate fixedly connected to the right end of the partition plate near the bottom end, and a sewage pipe fixedly connected to the right end of the box near the bottom end.
[0014] For example, in at least one embodiment of the present invention, a sponge city rainwater drainage outlet is provided, which further includes: a feed pipe fixedly connected to the top of the box and near the right end, and a drain pipe fixedly connected to the left end of the box and above the second support plate.
[0015] The beneficial effects of the embodiments of this utility model are as follows:
[0016] In this invention, a stirring assembly and a drainage assembly are provided. A collection hopper and stirring blades are provided. Driven by the water flow, the stirring blades mix rainwater and flocculant. The separation plate ensures the purification of rainwater. A piston and a spherical block are provided. By observing the movement speed of the spherical block and the elasticity of the spring, the water storage rate and storage capacity are determined. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of a rainwater drainage outlet for a sponge city in one embodiment of the present invention;
[0019] Figure 2 for Figure 1 A schematic diagram of the structure in the main cross-section of the embodiment;
[0020] Figure 3 for Figure 1 A schematic diagram of the drainage component in the embodiment;
[0021] Figure 4 for Figure 1 A schematic diagram of the unidirectional component in the embodiment;
[0022] Figure 5 for Figure 1 A schematic diagram of the stirring assembly in the embodiment;
[0023] In the diagram: 1. Box body; 2. Support component; 3. Collection pipe; 4. Stirring assembly; 41. Gathering hopper; 42. Bottom plate; 43. Stirring rod; 44. Stirring blade; 5. Support plate No. 1; 6. Support plate No. 2; 7. Drainage assembly; 71. Fixing cylinder; 72. Piston; 73. Connecting rod; 74. Spherical block; 75. Guide ring; 76. Spring No. 1; 77. Bellows; 78. Water inlet; 8. One-way assembly; 81. Connecting pipe; 82. Fixing ring; 83. Connecting cylinder; 84. Spring No. 2; 85. Top frame; 9. Filter plate; 10. Drainage pipe; 11. Divider plate; 12. Feed pipe; 13. Distance sensor; 14. Time sensor; 15. Isolation plate; 16. Drainage pipe. Detailed Implementation
[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.
[0025] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0026] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0028] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of description and simplification of operation, 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, they should not be construed as limitations on this utility model.
[0029] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0030] like Figures 1-5As shown, it illustrates a sponge city rainwater drainage outlet in one embodiment of the present invention, comprising: a box body 1, a support member 2 fixedly connected to the top of the box body 1, a collection pipe 3 fixedly connected to the top of the support member 2, an isolation plate 15 fixedly connected to the bottom wall of the inner cavity of the box body 1, a first support plate 5 fixedly connected inside the box body 1 and located at the left end of the isolation plate 15, and a second support plate 6 fixedly connected inside the box body 1 and located above the first support plate 5.
[0031] The mixing component 4 is fixed inside the housing 1 and located at the right end of the isolation plate 15. The mixing component 4 is used for mixing water and flocculant.
[0032] Drainage component 7 is fixed to the top of the first support plate 5 and close to the front end. Drainage component 7 is used to determine the degree of water accumulation inside the box 1.
[0033] One-way component 8 is fixed to the top of the first support plate 5 and near the left end. One-way component 8 assists in drainage when there is too much water.
[0034] For example, such as Figure 5 As shown, the stirring assembly 4 includes a gathering hopper 41, which is fixed inside the housing 1 and located at the right end of the partition plate 15. A bottom plate 42 is fixedly connected to the bottom end of the gathering hopper 41, and a stirring rod 43 is rotatably connected to the top end of the bottom plate 42 via a bearing. The upper end of the stirring rod 43 extends above the gathering hopper 41 and is rotatably connected to the top wall of the inner cavity of the housing 1 via a bearing. A stirring blade 44 is fixedly connected to the stirring rod 43.
[0035] In some examples, a stirring assembly 4 is provided to stir the flocculant and water resources by the flow of water. The PLC controller collects the rainwater through the collection pipe 3 and sends it into the tank 1. The stirring assembly 4 is working, and the PLC controller adds flocculant through the feed pipe 12. The water flow washes the stirring blades 44, causing the stirring blades 44 to rotate under the limitation of the stirring rod 43, thereby mixing the flocculant and water flow through the stirring blades. The water flow carries the flocculant into the bottom plate 42 for easy cleaning of rainwater.
[0036] For example, such as Figure 3As shown, the drainage assembly 7 includes a fixed cylinder 71, which is fixed to the top of the first support plate 5 and near the front end. A piston 72 is slidably connected inside the fixed cylinder 71. A connecting rod 73 is fixedly connected to the top of the piston 72. The top of the connecting rod 73 extends to the top of the tank 1 and is fixedly connected to a spherical block 74. A guide ring 75 is fixedly connected to the bottom of the tank 1. The guide ring 75 is slidably connected to the connecting rod 73. An inlet 78 is provided on the fixed cylinder 71 and below the first support plate 5. A spring 76 is fixedly connected to the top of the piston 72 and sleeved on the outside of the connecting rod 73. A bellows 77 is fixedly connected to the top of the piston 72 and extends to the top of the fixed cylinder 71. A distance sensor 13 is fixedly connected to the top of the tank 1 and below the spherical block 74. A time sensor 14 is fixedly connected to the top of the tank 1 and to the right of the distance sensor 13.
[0037] In some examples, the purpose of setting up a drainage component 7 is to facilitate the observation of the water storage status and water storage rate inside the tank 1. When the water flows through the partition plate 11, the drainage component 7 works under the action of atmospheric pressure as the water continuously flows in. The water flows through the inlet 78 and impacts the piston 72, causing the piston 72 to slide inside the fixed cylinder 71. The piston 72 drives the connecting rod 73 to move upward under the limitation of the guide ring 75. The connecting rod 73 drives the spherical block 74 to move upward. At the same time, the piston 72 moves upward and the first spring 76 is compressed, which buffers the impact force of the water flow. The first spring 76 is made of 50CrV steel. The addition of vanadium element refines the structure of the steel, resulting in high strength and toughness, and good fatigue resistance and impact resistance. The distance moved by the spherical block 74 per unit time is obtained by the PLC controller through the distance sensor 13 and the time sensor 14. The elastic coefficient of the first spring 76 is used to determine the water flow velocity and the water storage status inside the tank 1. The distance sensor 13 is a DT20Hi short-range laser distance sensor, which can accurately determine the moving distance of the spherical block 74.
[0038] For example, such as Figure 4 As shown, the one-way component 8 includes a connecting pipe 81, which is fixed to the top of the first support plate 5 and near the left end. A top frame 85 is fixedly connected inside the connecting pipe 81 and near the top. A fixing ring 82 is fixedly connected to the bottom wall of the inner cavity of the connecting pipe 81. A connecting cylinder 83 is installed inside the connecting pipe 81 and above the fixing ring 82. The top of the fixing ring 82 cooperates with the bottom of the connecting cylinder 83. A second spring 84 is fixedly connected to the bottom wall of the inner cavity of the connecting cylinder 83. The top of the second spring 84 is fixedly connected to the bottom of the top frame 85.
[0039] In some examples, the purpose of providing a one-way component 8 is to assist in drainage when the corrugated pipe 77 alone cannot drain water quickly due to excessive water flow. The one-way component 8 assists in drainage, as the water flow passes through the fixing ring 82 and lifts the connecting cylinder 83. The connecting cylinder 83 compresses the second spring 84, and the water flows out through the gap between the fixing ring 82 and the connecting cylinder 83. It then flows upward through the top frame 85 and is subsequently connected to the urban drainage system through the drain pipe 16 to discharge excess water. This allows for the discharge of treated rainwater and assists the corrugated pipe 77 in drainage.
[0040] For example, such as Figure 2 As shown, a partition plate 11 is fixedly connected inside the partition plate 15, a filter plate 9 is fixedly connected to the right end of the partition plate 15 near the bottom, a drain pipe 10 is fixedly connected to the right end of the box 1 near the bottom, a feed pipe 12 is fixedly connected to the top end of the box 1 near the right end, and a drain pipe 16 is fixedly connected to the left end of the box 1 above the second support plate 6.
[0041] In some examples, after the flocculant reacts with the water flow, the impurities flocculate and enter below the filter plate 9, and are then discharged through the drain pipe 10. The separation plate 11 is set to ensure that the water flow on the left side of the separation plate 15 is clean, which can purify the rainwater to a certain extent.
[0042] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model 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 solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A rainwater drainage outlet for sponge cities, characterized in that, include: Box (1), the top of the box (1) is fixedly connected to a support member (2), the top of the support member (2) is fixedly connected to a collection pipe (3), the bottom wall of the inner cavity of the box (1) is fixedly connected to an isolation plate (15), a first support plate (5) is fixedly connected inside the box (1) and located at the left end of the isolation plate (15), and a second support plate (6) is fixedly connected inside the box (1) and above the first support plate (5). A stirring assembly (4) is fixed inside the housing (1) and located at the right end of the isolation plate (15). The stirring assembly (4) is used for mixing water and flocculant. Drainage assembly (7), which is fixed to the top of the first support plate (5) and close to the front end, is used to determine the degree of water storage inside the box (1); One-way component (8), which is fixed at the top of the first support plate (5) and near the left end, and assists in drainage when there is too much water.
2. A sponge city rainwater drainage outlet according to claim 1, characterized in that, The stirring assembly (4) includes a gathering hopper (41), which is fixed inside the box (1) and located at the right end of the isolation plate (15). A bottom plate (42) is fixedly connected to the bottom end of the gathering hopper (41), and a stirring rod (43) is rotatably connected to the top end of the bottom plate (42) through a bearing. The upper end of the stirring rod (43) extends above the gathering hopper (41) and is rotatably connected to the top wall of the inner cavity of the box (1) through a bearing. A stirring blade (44) is fixedly connected to the stirring rod (43).
3. A sponge city rainwater drainage outlet according to claim 1, characterized in that, The drainage assembly (7) includes a fixed cylinder (71), which is fixed to the top of the first support plate (5) and close to the front end. A piston (72) is slidably connected inside the fixed cylinder (71). A connecting rod (73) is fixedly connected to the top of the piston (72). The top of the connecting rod (73) extends to the top of the box (1) and is fixedly connected to a spherical block (74). A guide ring (75) is fixedly connected to the bottom of the box (1). The guide ring (75) is slidably connected to the connecting rod (73).
4. A sponge city rainwater drainage outlet according to claim 3, characterized in that, A water inlet (78) is provided on the fixed cylinder (71) and below the first support plate (5). A first spring (76) is fixedly connected to the top of the piston (72) and sleeved on the outside of the connecting rod (73). A bellows (77) is fixedly connected to the top of the piston (72), and the upper end of the bellows (77) extends to the top of the fixed cylinder (71).
5. A sponge city rainwater drainage outlet according to claim 3, characterized in that, A distance sensor (13) is fixedly connected to the top of the box (1) and below the spherical block (74), and a time sensor (14) is fixedly connected to the top of the box (1) and to the right of the distance sensor (13).
6. A sponge city rainwater drainage outlet according to claim 1, characterized in that, The unidirectional component (8) includes a connecting pipe (81), which is fixed at the top of the first support plate (5) and near the left end. A top frame (85) is fixedly connected inside the connecting pipe (81) and near the top. A fixing ring (82) is fixedly connected to the bottom wall of the inner cavity of the connecting pipe (81). A connecting cylinder (83) is installed inside the connecting pipe (81) and above the fixing ring (82). The top of the fixing ring (82) is engaged with the bottom of the connecting cylinder (83). A second spring (84) is fixedly connected to the bottom wall of the inner cavity of the connecting cylinder (83). The top of the second spring (84) is fixedly connected to the bottom of the top frame (85).
7. A sponge city rainwater drainage outlet according to claim 1, characterized in that, The partition plate (15) is fixedly connected to the partition plate (11), the right end of the partition plate (15) and near the bottom end is fixedly connected to the filter plate (9), and the right end of the box (1) and near the bottom end is fixedly connected to the drain pipe (10).
8. A sponge city rainwater drainage outlet according to claim 1, characterized in that, A feed pipe (12) is fixedly connected to the top of the box (1) and near the right end, and a drain pipe (16) is fixedly connected to the left end of the box (1) and above the second support plate (6).