Rainwater filtering and dredging assembly
By designing the rainwater filtration and guidance components of the multi-layer filter structure and hydraulic guidance mechanism, the problem of easy blockage of filters in the rainwater treatment of the viaduct is solved, and efficient and convenient rainwater treatment effect is achieved.
Patent Information
- Application Number
- CN202422564520.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-23
AI Technical Summary
In the existing rainwater treatment structure of the viaduct, the built-in filter is prone to clogging, resulting in a reduction in the filter area, reducing drainage efficiency, and inconvenient for maintenance and renewal.
A rainwater filtration and guidance assembly is designed, including a groove body, a rainwater grate frame, the first and second grate plates, limit blocks and hydraulic guidance mechanism. Through the multi-layer filter structure and the utilization of mechanical potential energy, multi-stage filtration and rapid guidance are realized.
It improves rainwater treatment efficiency and quality, facilitates the installation, disassembly and maintenance of components, reduces the risk of blockage, and improves filtration accuracy and drainage capacity.
Smart Images

Figure CN223281196U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevated bridge rainwater treatment, in particular to a rainwater filtering and dredging component. Background Art
[0002] In the prior art, the rainwater treatment structure of an elevated bridge includes drainage channels embedded in both sides of the elevated bridge, and rainwater collection and drainage pipes connected to the drainage channels. Rainwater will carry mud and foreign matter into the pipes. Currently, filters are generally installed in the pipes to unclog the pipes and improve drainage efficiency. However, there are the following problems: relying solely on filters in the pipes for rainwater drainage has limitations. Whether it is an external or embedded pipe, its structure is complex, and the built-in filter components are not easy to repair and update. Over time, foreign matter accumulates, causing the filters to clog, reducing the effective filtration area, increasing the resistance to water flow, reducing drainage efficiency, and hindering rainwater collection. Therefore, a rainwater filtering and drainage component is provided, which can be adaptively installed in the existing drainage channels embedded in the elevated bridge, adding a filtering operation. This not only solves the problem of traditional rainwater drainage methods relying solely on filters in the pipes, but also further improves the efficiency and quality of rainwater treatment. Utility Model Content
[0003] The utility model provides a rainwater filtering and channeling component, which can overcome certain defects of the prior art.
[0004] According to the utility model, a rainwater filtering and diversion component includes a component body, which includes a trough body with an open top and a rainwater grate frame arranged at the opening of the trough body; a first grate plate is hingedly connected to the rainwater grate frame; the wall panels on the four sides of the trough body and the wall panels at the bottom are all provided with through holes, a limit block is provided on the inner wall of the trough body, and a second grate plate is provided on the upper part of the limit block; a first cavity layer is formed between the second grate plate and the first grate plate, and a second cavity layer is formed between the second grate plate and the bottom of the trough body.
[0005] The rainwater filtering and drainage component of the present invention can be adaptively installed for existing drainage channels embedded in viaducts to add a filtering operation, which not only solves the problem of traditional rainwater drainage methods that simply rely on filters in pipes, but also further improves the efficiency and quality of rainwater treatment; the component is easy to install and disassemble, making it convenient for operators to clean out debris in the trough and to repair and replace components in a timely manner.
[0006] Preferably, the rain grate frame is formed by the outer side wall of the trough opening extending outward in all directions, and the rain grate frame is cast integrally with the trough; the rain grate frame is provided with a through hole for bolting the rainwater filtering and diversion assembly to the groove-shaped drainage channel on the viaduct.
[0007] In the present invention, by setting up the rain grate frame, the rainwater filtering and diversion assembly can be stably mounted inside the groove-shaped drainage channel on the viaduct; by connecting the rainwater filtering and diversion assembly with the ground through expansion bolts and other connecting parts, it can be ensured that the rainwater filtering and diversion assembly is stably fixed to the ground and is not easy to fall off or shift, which helps the assembly to withstand the pressure or vibration of the viaduct road surface.
[0008] Preferably, a rotation axis is provided on the inner side wall of the rainwater grate frame, and the first grate plate is hingedly connected to the rainwater grate frame via the rotation axis. This allows for limited rotation of the first grate plate. As can be appreciated, when the rainwater filter and drainage assembly is in use, the first grate plate can be stably mounted horizontally at the opening of the trough body to filter larger debris from rainwater. When the interior of the rainwater filter and drainage assembly requires cleaning, inspection, or maintenance, the first grate plate can be flipped around the rotation axis to facilitate such operations.
[0009] Preferably, the limit block is arranged between two adjacent side walls along the inner circumference of the trough body, and a second grate plate is provided on the upper part of the limit block. The second grate plate is provided with a through hole for bolting it to the limit block, and a first cavity layer is formed between the second grate plate and the first grate plate.
[0010] In the present invention, a buffering effect can be achieved by setting the first cavity layer. As can be understood, the first cavity layer acts as a buffer zone, which can slow down the speed at which rainwater on the viaduct flows into the drainage channel, thereby avoiding the problem of insufficient filtration caused by excessive water flow.
[0011] Preferably, a second cavity layer is formed between the second grate plate and the bottom of the trough body, and the size of the grate holes on the second grate plate is smaller than the size of the grate holes on the first grate plate.
[0012] In the present invention, the second cavity layer is provided to optimize the filtration level. As can be understood, the design of the grate holes of different sizes enables the first grate plate and the second grate plate to form a structure with increasing filtration levels, which can more comprehensively intercept debris in rainwater and improve the accuracy of rainwater filtration.
[0013] Preferably, since the first cavity layer and the second cavity layer have different filtering functions, when the component needs to be replaced or cleaned, the cavity layer to be operated can be selected according to the actual situation, which improves the convenience of maintenance and reduces the operating cost.
[0014] Preferably, a hydraulic drainage mechanism is detachably provided in the second cavity layer; the hydraulic drainage mechanism includes a runner with blades evenly spaced along the outer peripheral wall; a rotating shaft is passed through the central through hole of the runner, and both ends of the rotating shaft are respectively mounted on the inner wall of the second cavity layer.
[0015] In the present invention, by setting up the hydraulic drainage mechanism, the mechanical potential energy generated by the falling rainwater can be fully utilized, and the rainwater is used as the driving medium for the rotation of the mechanism, thereby generating vortexes, stirring and filtering the rainwater in the second cavity layer, accelerating the filtration rate, and improving the effect of dredging the drainage channel.
[0016] Preferably, a cleaning brush is provided at one end of the blade away from the rotating shaft. Therefore, the hydraulic drainage mechanism can promptly clean impurities clogged in the grate holes on the second grate plate while accelerating the stirring and filtration, thereby preventing sludge and other impurities from affecting the filtration rate and filtration effect of the rainwater filtration and drainage assembly.
[0017] Preferably, strip-shaped through-holes are provided horizontally at intervals on the wall panels on all four sides and the bottom of the trough. Therefore, after rainwater flows into the rainwater filtration and drainage assembly, it is filtered and channeled by the assembly before being discharged into the drainage channel through the strip-shaped through-holes. This removes suspended solid particles such as dirt, leaves, and small garbage from the rainwater, reducing the pollution load on the elevated bridge drainage system. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 Schematic diagram of the three-dimensional structure of the rainwater filtering and channeling component in Example 1;
[0019] Figure 2 This is a top view of the rainwater filtering and channeling assembly in Example 1;
[0020] Figure 3 This is a cross-sectional schematic diagram of the rainwater filtering and channeling component at BB in Example 1.
[0021] Figure 4 It is a side view of the hydraulic dredging mechanism in Example 1; DETAILED DESCRIPTION
[0022] In order to further understand the content of the present invention, the present invention is described in detail with reference to the embodiments. It should be understood that the embodiments are merely for explanation of the present invention and are not intended to limit the present invention.
[0023] Example 1
[0024] Combine Figure 1-4As shown, this embodiment provides a rainwater filtration and drainage component, which includes a component body 100, the component body 100 includes a trough body 120 with an open top and a rainwater grate frame 110 arranged at the opening of the trough body 120; a first grate plate 130 is hinged at the rainwater grate frame 110; the wall panels on the four sides of the trough body 120 and the wall panels at the bottom are provided with through holes, a limit block 121 is provided at the inner wall of the trough body 120, and a second grate plate 140 is provided on the upper part of the limit block 121; a first cavity layer 310 is formed between the second grate plate 140 and the first grate plate 130, and a second cavity layer 320 is formed between the second grate plate 140 and the bottom of the trough body 120.
[0025] The rainwater filtering and drainage components in this embodiment can be adaptively installed for existing drainage channels embedded in viaducts to add a filtering operation. This not only solves the problem of traditional rainwater drainage methods that simply rely on filters in pipes, but also further improves the efficiency and quality of rainwater treatment. The components are easy to install and disassemble, making it convenient for operators to clean up debris in the trough and to repair and replace components in a timely manner.
[0026] In this embodiment, the rain grate frame 110 is formed by the outer side wall of the opening of the trough body 120 being constructed outward in all directions, and the rain grate frame 110 and the trough body 120 are cast as one piece; the rain grate frame 110 is provided with a through hole for bolting the rainwater filtering and diversion assembly to the groove-shaped drainage channel A on the viaduct.
[0027] Through the rain grate frame 110 in this embodiment, the rainwater filtering and drainage component can be stably mounted inside the groove-shaped drainage channel A on the viaduct. The rainwater filtering and drainage component is connected to the ground through connectors such as expansion bolts, which can ensure that the rainwater filtering and drainage component is stably fixed to the ground and is not easy to fall off or shift, which helps the component to withstand pressure or vibration from the viaduct road surface.
[0028] In this embodiment, a rotation axis is provided on the inner sidewall of the rainwater grate frame 110, and the first grate plate 130 is hingedly connected to the rainwater grate frame 110 via the rotation axis. This allows for limited rotation of the first grate plate 130. As can be understood, when the rainwater filtration and drainage assembly is in use, the first grate plate 130 can be stably mounted horizontally at the opening of the trough 120 to filter larger debris from the rainwater. When the interior of the rainwater filtration and drainage assembly requires cleaning, inspection, or maintenance, the first grate plate 130 can be flipped around the rotation axis to facilitate such operations.
[0029] In this embodiment, the limit block 121 is arranged between two adjacent side walls along the internal circumference of the trough body 120, and a second grate plate 140 is provided on the upper part of the limit block 121. The second grate plate 140 is provided with a through hole for bolting it to the limit block 121, and a first cavity layer 310 is formed between the second grate plate 140 and the first grate plate 130.
[0030] The first cavity layer 310 of this embodiment can achieve a buffering effect. As can be understood, the first cavity layer 310 acts as a buffer zone, slowing down the speed at which rainwater on the viaduct flows into the drainage channel A, thereby avoiding the problem of insufficient filtration caused by excessive water flow.
[0031] In this embodiment, a second cavity layer 320 is formed between the second grate plate 140 and the bottom of the tank body 120 , and the size of the grate holes on the second grate plate 140 is smaller than the size of the grate holes on the first grate plate 130 .
[0032] By providing the second cavity layer 320 in this embodiment, the filtration level can be optimized. As can be understood, the design of the grate holes of different sizes enables the first grate plate 130 and the second grate plate 140 to form a structure with increasing filtration levels, which can more comprehensively intercept debris in rainwater and improve the accuracy of rainwater filtration.
[0033] In this embodiment, since the first cavity layer 310 and the second cavity layer 320 have different filtering functions, when components need to be replaced or cleaned, the cavity layer to be operated can be selected according to actual conditions, thereby improving maintenance convenience and reducing operating costs.
[0034] In this embodiment, a hydraulic drainage mechanism 210 is detachably provided in the second cavity layer 320; the hydraulic drainage mechanism 210 includes a rotor 212, and the rotor 212 is provided with blades 213 evenly spaced along the outer peripheral wall; a rotating shaft 211 is passed through the central through hole of the rotor 212, and both ends of the rotating shaft 211 are respectively installed on the inner wall of the second cavity layer 320.
[0035] Through the hydraulic drainage mechanism 210 in this embodiment, the mechanical potential energy generated by the falling rainwater can be fully utilized, and the rainwater can be used as the driving medium for the rotation of the mechanism, thereby generating vortexes, stirring and filtering the rainwater in the second cavity layer 320, accelerating the filtration rate, and improving the effect of draining the drainage channel A.
[0036] In this embodiment, a cleaning brush 214 is provided at one end of the blade 213 away from the rotating shaft 211 .
[0037] Through the cleaning brush 214 in this embodiment, the hydraulic drainage mechanism 210 can accelerate the stirring and filtration while promptly cleaning the impurities blocked in the grate holes on the second grate plate 140, thereby preventing impurities such as sludge from affecting the filtration rate and filtration effect of the rainwater filtration and drainage component.
[0038] In this embodiment, horizontally spaced strip-shaped through-holes are provided on the four side panels and the bottom panel of the trough body 120. Therefore, rainwater flowing into the rainwater filtration and drainage assembly is filtered and channeled by the assembly before being discharged through the strip-shaped through-holes into drainage channel A. This removes suspended solid particles such as dirt, leaves, and small garbage from the rainwater, reducing the pollution load on the elevated bridge drainage system.
[0039] In short, the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention patent.
Claims
1. Rainwater filtering and drainage component, characterized by: The component body (100) comprises a trough body (120) with an open top and a rain grate frame (110) arranged at the opening of the trough body (120); a first grate plate (130) is hingedly connected to the rain grate frame (110); through holes are provided on the wall panels on the four sides and the bottom of the trough body (120); a limit block (121) is provided on the inner wall of the trough body (120); a second grate plate (140) is provided on the upper part of the limit block (121); a first cavity layer (310) is formed between the second grate plate (140) and the first grate plate (130), and a second cavity layer (320) is formed between the second grate plate (140) and the bottom of the trough body (120).
2. A rainwater filtering and channeling assembly according to claim 1, characterized in that: A rain grate frame (110) is constructed on the outer side wall of the opening of the trough body (120) outwardly along the circumferential direction, and the rain grate frame (110) and the trough body (120) are integrally cast and formed.
3. A rainwater filtering and channeling assembly according to claim 1, characterized in that: The size of the grate holes on the second grate plate (140) is smaller than the size of the grate holes on the first grate plate (130).
4. A rainwater filtering and channeling assembly according to claim 1, characterized in that: The limiting block (121) is arranged between two adjacent side walls along the inner circumference of the trough body (120).
5. The rainwater filtering and channeling assembly according to claim 1, characterized in that: A hydraulic dredging mechanism is detachably provided in the second cavity layer (320).
6. A rainwater filtering and channeling assembly according to claim 5, characterized in that: The hydraulic dredging mechanism (210) comprises a rotating wheel (212), a rotating shaft (211) is passed through a central through hole of the rotating wheel (212), and both ends of the rotating shaft (211) are respectively mounted on the inner wall of the second cavity layer (320).
7. A rainwater filtering and channeling assembly according to claim 6, characterized in that: The hydraulic dredging mechanism (210) further includes blades (213) evenly spaced along the outer peripheral wall of the runner (212).
8. The rainwater filtering and channeling assembly according to claim 7, characterized in that: A cleaning brush (214) is provided at one end of the blade (213) away from the rotating shaft (211).