Front-end sewage intercepting and distributing device suitable for sinking green land
By designing diversion wells, collection areas, and discharge areas in the rainwater collection device for sunken green spaces, the problems of debris accumulation and blockage and inconvenient cleaning have been solved, realizing the centralized collection of garbage and debris and the smooth discharge of rainwater, thus improving the practicality and operability of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MCC SOUTHERN CITY CONSTR ENG TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-01
AI Technical Summary
Existing rainwater collection devices in sunken green spaces suffer from problems such as debris accumulation and blockage, inconvenient cleaning, frequent cleaning, and uncertainty in manual operation, resulting in poor rainwater drainage and inconsistent cleaning.
Design a device including a diversion well, a collection pipe, and an outlet pipe. The diversion well has a collection area and a discharge area. The collection area is equipped with a intercepting frame and a perforated mesh. An overflow weir is used to automatically regulate the direction of rainwater flow. The discharge area is connected to the municipal rainwater pipe network to realize the centralized collection of garbage and debris and the smooth discharge of rainwater.
It enables centralized collection and automated processing of garbage and debris, reduces the frequency of cleaning, ensures smooth drainage of rainwater, and improves the practicality and operability of the device.
Smart Images

Figure CN224186893U_ABST
Abstract
Description
A front-end sewage interception and diversion device suitable for sunken green spaces Technical Field
[0001] This utility model relates to the field of sponge city technology, and in particular to a front-end sewage interception and diversion device suitable for sunken green spaces. Background Technology
[0002] Sunken green spaces have been widely used in the field of sponge cities. By collecting and absorbing rainwater from the surrounding area, they aim to reduce the amount of rainwater flowing into the site and control runoff pollution. There are generally two ways to collect rainwater in sunken green spaces: one is through building downpipes, and the other is through surface runoff collection from roads and plazas. Using building downpipes requires the sunken green space to be located very close to buildings, which often limits its location and flexibility. Sunken green spaces located on roads and plazas require a certain vertical slope to collect nearby rainwater, and the amount of rainwater collected is also quite limited.
[0003] To address the above shortcomings, utility model patent application number 202420289388.0 discloses a rainwater collection and discharge device suitable for sunken green spaces that can solve the above problems. This collection device has a interceptor at the front end of the collection pipe capable of intercepting larger pollutants in rainwater, and a detachable interceptor frame inside the inlet well to intercept smaller pollutants in the rainwater. When rainfall is light, the rainwater, after being cleaned and purified, enters the sunken green space; when rainfall is heavy, the interceptor frame is removed, allowing the rainwater to enter the bottom of the inlet well and discharge into the municipal stormwater network. However, this utility model has certain drawbacks.
[0004] Firstly, the utility model has devices for intercepting debris at the front end of the collection pipe, the intercepting frame in the inlet well, and the front end of the outlet pipe, which will result in the locations that need to be cleaned being too scattered, which is not conducive to later maintenance.
[0005] Secondly, the interceptor at the front end of the collection pipe is already able to intercept most debris. However, the vertical installation of this interceptor can easily cause debris to accumulate at the pipe opening and block the collection pipe, preventing rainwater from draining smoothly.
[0006] In addition, the shallow depth of the interception frame limits the amount of garbage and debris it can collect, leading to very frequent cleaning later on.
[0007] Finally, when the rainfall is heavy, the operation of dismantling the sewage interception frame needs to be carried out manually. Since rainfall is generally discontinuous and there is no standard for judging the amount of rainfall, manual dismantling is very inconvenient, and the timing of dismantling is not clear enough, making it less operable.
[0008] In conclusion, this patent has low practical applicability. Summary of the Invention
[0009] The purpose of this invention is to overcome the shortcomings of the aforementioned background technology and provide a front-end interception and diversion device suitable for sunken green spaces, which has the characteristics of large garbage carrying capacity, centralized garbage processing, and smooth rainwater discharge.
[0010] This utility model provides a front-end interception and diversion device for sunken green spaces, including a diversion well and a collection pipe and an outlet pipe located at both ends of the diversion well. The diversion well is provided with a collection area. The front end of the collection area is provided with a collection pipe connected to a drainage ditch for collecting rainwater. The rear end of the collection area is provided with an outlet pipe connected to the sunken green space. The inlet of the outlet pipe is provided with a pipe interception net.
[0011] In the above technical solution, a dirt-catching frame is provided at the bottom of the collection area, and the outer surface of the dirt-catching frame is provided with pores for filtering rainwater.
[0012] In the above technical solution, the sidewall of the intercepting frame is provided with a perforated mesh, and the perforated mesh of the sidewall of the intercepting frame is located in the middle of each sidewall.
[0013] In the above technical solution, the sidewall of the intercepting frame has a funnel-shaped structure that is larger at the top and smaller at the bottom.
[0014] In the above technical solution, the top of the intercepting frame is provided with a lifting ring.
[0015] In the above technical solution, the diversion well is also provided with a discharge area, which is connected to the collection area side by side. An overflow weir is provided between the discharge area and the collection area to separate them. A weir top interception net is provided between the overflow weir and the top of the diversion well. A drainage pipe connected to the municipal rainwater pipe network system is provided at the bottom of the discharge area.
[0016] In the above technical solution, both the collection pipe and the outlet pipe are located at the top of the diversion well, and the openings of the collection pipe and the outlet pipe are aligned.
[0017] In the above technical solution, the top of the overflow weir is flush with the bottom of the inlet of the collection pipe and the outlet pipe.
[0018] In the above technical solution, the top of the diversion well is provided with a movable cover plate, and the top of the weir crest interception net is connected to the movable cover plate.
[0019] In the above technical solution, the volume of the collection area is larger than the volume of the discharge area.
[0020] This utility model is applicable to the front-end sewage interception and diversion device for sunken green spaces, and has the following beneficial effects:
[0021] 1. Provide a front-end interception and diversion device suitable for sunken green spaces, which confines all garbage and debris mixed in rainwater to the collection area of the diversion well, making it easy to clean up.
[0022] 2. By optimizing the layout of the diversion device and making full use of the internal space of the sewage interception and diversion device, the space for garbage and debris in the diversion well collection area has been greatly increased.
[0023] 3. When the rainfall in the sunken green space reaches its maximum, the rainwater will automatically overflow from the collection area in the diversion well to the discharge area without human intervention. Attached Figure Description
[0024] Figure 1 is a top view of the overall structure of the front-end sewage interception and diversion device of this utility model applicable to sunken green spaces;
[0025] Figure 2 is a cross-sectional view of the collection area in the front-end sewage interception and diversion device of this utility model applicable to sunken green spaces;
[0026] Figure 3 is a structural cross-sectional view of the discharge zone in the front-end interception and diversion device of this utility model applicable to sunken green spaces;
[0027] Figure 4 is a cross-sectional view of the overall structure of the front-end sewage interception and diversion device of this utility model applicable to sunken green spaces. Detailed Implementation
[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but these embodiments should not be construed as limiting the present invention.
[0029] Referring to Figures 1-4, the present invention includes a sewage interception and diversion device with a flushing mechanism. The sewage interception and diversion device includes a diversion well 1, a collection pipe 2, a water outlet pipe 3, and a drainage pipe 4. The diversion well 1 includes two compartments: a collection area 12 and a discharge area 13, which are separated by an overflow weir 14. The two ends of the collection area 12 are connected to the collection pipe 2 and the water outlet pipe 3, respectively, and a sewage interception frame 5 is installed at the bottom. The discharge area 3 is connected to the drainage pipe 4.
[0030] Furthermore, the diversion well 1 is made of reinforced concrete or brick, and a movable cover plate 11 is installed on top of it. The movable cover plate 11 is made of cast iron or cement, and can also be consistent with the material of the ground paving.
[0031] Furthermore, the collection area 12 and discharge area 13 inside the diversion well 1 have no fixed size requirement. The collection area 12 is slightly larger than the discharge area 13 to facilitate the collection of more garbage and debris. The collection area 12 and discharge area 13 are separated by an overflow weir 14. The top of the overflow weir 14 is flush with the end of the collection pipe 2 and the bottom of the front section of the outlet pipe 3. A weir top interception net 15 is installed between the top of the overflow weir 14 and the movable cover plate 11 to intercept debris.
[0032] Furthermore, the intercepting frame 5 is placed in the collection area 12. The bottom and all four sides of the intercepting frame 5 have pores to filter rainwater. A lifting ring 51 is installed in the middle of the top of the intercepting frame 5 to facilitate lifting and cleaning of the garbage.
[0033] Furthermore, the collection pipe 2, the outlet pipe 3, and the drainage pipe 4 are all made of conventional drainage pipe materials. The front end of the collection pipe 2 is connected to the drainage ditch (not shown in the figure) for collecting rainwater, and the end of the collection pipe 2 is connected to the collection area 12 of the diversion well 1.
[0034] Furthermore, the front end of the water outlet pipe 3 is connected to the collection area 12 of the diversion well 1, the end of the water outlet pipe 3 is connected to the sunken green space 6, and a pipe interception net 16 is provided at the front end of the water outlet pipe 3 to intercept debris.
[0035] Furthermore, the front end of the drainage pipe 4 is connected to the discharge area 13 of the diversion well 1, and the end of the drainage pipe 4 is connected to the municipal stormwater pipe network system (not shown in the figure).
[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
[0037] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
Claims
1. A front-end sewage interception and diversion device suitable for sunken green spaces, comprising a diversion well (1) and a collection pipe (2) and an outlet pipe (3) respectively located at both ends of the diversion well (1), characterized in that: The diversion well (1) is provided with a collection area (12). The front end of the collection area (12) is provided with a collection pipe (2) connected to the drainage ditch for collecting rainwater. The rear end of the collection area (12) is provided with a water outlet pipe (3) connected to the sunken green space (6). The inlet of the water outlet pipe (3) is provided with a pipe interception net (16).
2. The front-end sewage interception and diversion device for sunken green spaces according to claim 1, characterized in that: The bottom of the collection area (12) is provided with a dirt-catching frame (5), and the outer surface of the dirt-catching frame (5) is provided with pores for filtering rainwater.
3. The front-end sewage interception and diversion device for sunken green spaces according to claim 2, characterized in that: The side wall of the intercepting frame (5) is provided with a perforated mesh, and the perforated mesh of the side wall of the intercepting frame (5) is located in the middle of each side wall.
4. The front-end interception device suitable for sinking greenfield according to claim 3, characterized in that: The side wall of the intercepting frame (5) has a funnel-shaped structure that is larger at the top and smaller at the bottom.
5. The front-end interception device suitable for sinking greenfield according to claim 4, characterized in that: The top of the intercepting frame (5) is equipped with a hanging ring (51).
6. The front-end sewage interception and diversion device for sunken green spaces according to claim 5, characterized in that: The diversion well (1) is also provided with a discharge area (13), which is connected to the collection area (12) side by side. An overflow weir (14) is provided between the discharge area (13) and the collection area (12) to separate the discharge area (13) and the collection area (12). A weir top interception net (15) is provided between the overflow weir (14) and the top of the diversion well (1). A drainage pipe (4) connected to the municipal rainwater pipe network system is provided at the bottom of the discharge area (13).
7. The front-end sewage interception and diversion device for sunken green spaces according to claim 6, characterized in that: The collecting pipe (2) and the outlet pipe (3) are both located above the diversion well (1), and the openings of the collecting pipe (2) and the outlet pipe (3) are aligned.
8. The front-end sewage interception and diversion device for sunken green spaces according to claim 7, characterized in that: The top of the overflow weir (14) is flush with the bottom of the inlet of the collection pipe (2) and the outlet pipe (3).
9. The front-end sewage interception and diversion device for sunken green spaces according to claim 8, characterized in that: The diversion well (1) is equipped with a movable cover plate (11) at the top, and the top of the weir crest interception net (15) is connected to the movable cover plate (11).
10. The front-end interception device suitable for sinking greenfield according to claim 9, characterized in that: The volume of the collection area (12) is greater than the volume of the discharge area (13).
Citation Information
Patent Citations
Rainwater collecting and discharging device suitable for sinking green land
CN221989512U