Porous side-by-side underpass
By installing a filtration mechanism at the outlet of the water passage holes in the main body of the culvert, and utilizing the cooperation of the filter end cap and scraper, the problem of silt and impurities being discharged into the river in the multi-hole parallel culvert is solved, achieving automatic dredging and efficient filtration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG KANG CHENG MUNICIPAL GARDEN ENG CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-19
AI Technical Summary
In multi-hole parallel underground culverts, the gaps in the grating plates allow silt and impurities to easily flow into the river, polluting the waterway.
A filtration mechanism is installed at the outlet of the water passage in the main body of the culvert, including a filter end cover, a filter scraper and a sludge storage tank. The filter end cover is driven to slide by a drive component, and the filter scraper scrapes off the sludge and it enters the storage tank through the discharge hole.
It effectively reduces the amount of silt and impurities entering the river channel, achieves automatic dredging, and ensures the cleanliness and efficiency of the drainage system.
Smart Images
Figure CN224378726U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of culvert construction, and in particular to a multi-hole parallel culvert that crosses the road. Background Technology
[0002] Culverts are an indispensable backbone of modern urban drainage systems, efficiently transporting rainwater and sewage, controlling floods and draining water, and maximizing the use of surface space. Rectangular and arched cast-in-place box culverts are the most common structural forms. Multi-span parallel-passage culverts are a special type of culvert structure, capable of handling large-volume drainage demands due to their multiple channels for transporting rainwater and sewage. A multi-span parallel-passage culvert consists of a main culvert body with multiple parallel-arranged perforations. A grating is typically installed at the outlet of the culvert body to reduce pollutants entering the waterway through the culvert. However, due to the relatively large gaps in the grating, impurities and silt from within the culvert can easily seep into the waterway through these gaps, causing pollution. Utility Model Content
[0003] In order to reduce the amount of silt and impurities discharged into the river from the culvert, this application provides a multi-hole parallel culvert.
[0004] A multi-hole parallel-arranged culvert includes a culvert body having multiple parallel-arranged water passages; it also includes a filtration mechanism; the filtration mechanism includes a mounting bracket located outside the water passages, a filter end cap slidably mounted on the mounting bracket and corresponding to each water passage, a drive assembly mounted on the mounting bracket for driving the filter end cap to slide, and a sludge storage tank mounted on the mounting bracket and located below the outlet of the water passage; the filter end cap has filter mesh holes for covering the outlet of the water passage, and the filter end cap is connected to a filter scraper extending into the water passage and abutting the bottom surface of the water passage, the filter scraper having a discharge through hole penetrating the upper and lower surfaces.
[0005] By adopting the above technical solution, the filter mesh of the filter end cover can filter the water flow discharged from the culvert, reducing the silt and impurities entering the river; the filter scraper can scrape off the silt on the bottom of the water passage hole and collect the silt into the silt storage box below through the discharge hole; the drive component can drive the filter end cover to slide, which is convenient for cleaning and maintenance of the filter mechanism.
[0006] By adopting the above technical solution, a filtration mechanism is installed at the outlet of the water passage in the main body of the culvert. This mechanism uses a filter end cap with a filter mesh to cover the outlet for filtration. The filter scraper connected to the filter end cap can scrape off silt and impurities by adhering to the bottom surface of the water passage. Specifically, when the drive component moves the filter end cap horizontally, the filter scraper simultaneously scrapes off the silt from the bottom surface of the water passage. When the filter end cap moves above the silt storage tank, the scraped silt falls into the silt storage tank through the discharge hole on the filter scraper, realizing automatic silt removal and effectively reducing the amount of silt and impurities discharged from the culvert into the river.
[0007] Optionally, the discharge through hole is an inverted frustum-shaped hole, and the upper edge of the discharge through hole coincides with the upper edge of the filter scraper.
[0008] By adopting the above technical solution, the discharge hole is set as an inverted frustum hole with its upper edge coinciding with the upper edge of the filter scraper, which allows the sludge to fall more smoothly from the discharge hole into the sludge storage tank and reduces the accumulation of sludge at the discharge hole.
[0009] Optionally, the inclination of the conical surface of the discharge through hole is not less than 45°.
[0010] By adopting the above technical solution, the inclination of the discharge through-hole cone surface is set to not less than 45°, which facilitates the sludge and impurities to fall down along the side wall of the discharge through-hole and fall into the sludge storage tank more effectively.
[0011] Optionally, a first guide surface is provided on the side of the filter scraper facing away from the filter end cover.
[0012] By adopting the above technical solution, a first guide surface is provided on the side of the filter scraper facing away from the filter end cover, which facilitates the impact of rainwater and sewage on the filter scraper.
[0013] Optionally, the filter end cap is provided with multiple sets of filter areas along the height direction, and the pore size of the filter mesh in the filter area increases with the increase of the height of the filter area.
[0014] By adopting the above technical solution, the filter end cover is provided with multiple sets of filtration zones along the height direction. The pore size of the filter mesh in each filtration zone increases with the height. When water flows out through the water passage, impurities in the water will first accumulate on the inner side of the lower zone and form silt, which will gradually block the filter mesh of the bottom filtration zone. At this time, the water flow is lifted by the silt and can flow out through the middle filtration zone. When the silt blocks the filter mesh of the middle filtration zone, the water flow can finally be discharged through the filter mesh of the uppermost filtration zone. Since the pore size of the filter mesh in the uppermost filtration zone is larger, some silt can also be discharged through the uppermost filtration zone, reducing the probability of the filter mesh of the uppermost filtration zone being blocked.
[0015] Optionally, it also includes a cleaning assembly installed on the mounting bracket, the cleaning assembly including a cleaning spray gun corresponding to each of the filter end caps and used for cleaning the lower part of the filter end caps, and a water supply assembly for supplying water to the cleaning spray guns.
[0016] By adopting the above technical solution, the cleaning spray gun of the cleaning mechanism can clean the lower part of the filter end cover, and the water supply component supplies water to the cleaning spray gun, which can prevent the lower part of the filter end cover from being blocked, and ensure the filtration effect and drainage efficiency.
[0017] Optionally, the mounting bracket has a slide column assembly for horizontally sliding the filter end cap, the drive assembly includes a horizontally arranged hydraulic push rod mounted on the mounting bracket, and the top of the filter end cap has a mounting portion for connecting and fixing the output rod of the hydraulic push rod.
[0018] By adopting the above technical solution, the sliding column assembly allows the filter end cover to slide horizontally, ensuring the stability of the filter end cover's movement. The drive assembly uses a horizontally arranged hydraulic push rod and connects to the filter end cover through the mounting part, which can easily drive the filter end cover to slide horizontally.
[0019] Optionally, the slide column assembly includes four horizontally arranged support slide columns, and the four corners of the filter end cap are provided with support sleeves for cooperating with the support slide columns.
[0020] By adopting the above technical solution, the slide column assembly uses four horizontally arranged support slide columns, and the filter end cover is provided with support sleeves at the four corners that cooperate with the support slide columns. This ensures that the filter end cover slides smoothly along the horizontal direction, enabling the filter end cover to better achieve the closing and opening operation of the water passage outlet, and improving the stability and reliability of the filtration operation.
[0021] In summary, this application includes at least one of the following beneficial technical effects:
[0022] 1. A multi-hole parallel-through-the-way culvert, comprising a culvert body and a filtration mechanism; the culvert body is provided with multiple parallel water passage holes; the filtration mechanism includes a mounting bracket, a filter end cap slidably mounted on the mounting bracket and corresponding to the holes, a drive assembly, and a sludge storage tank; by setting up the filtration mechanism, impurities and sludge in the water can be effectively filtered, and by the filter scraper cooperating with the filter end cap, the sludge at the bottom of the culvert can be scraped off, and by the drive assembly driving the filter end cap to slide horizontally, the sludge is transported to the sludge storage tank through the discharge hole, effectively reducing the amount of sludge and impurities discharged from the culvert into the river;
[0023] 2. By setting the discharge port as an inverted frustum-shaped hole, and aligning the upper edge of the discharge port with the upper edge of the filter scraper, the sludge can fall more smoothly from the discharge port into the sludge storage tank.
[0024] 3. The cleaning assembly installed on the mounting bracket prevents clogging at the bottom of the filter end cap, ensuring filtration efficiency and drainage effectiveness. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of the multi-hole parallel-row underground culvert in this embodiment.
[0026] Figure 2 This is a schematic diagram of the structure of a single underground culvert in this embodiment.
[0027] Figure 3 This is a schematic diagram of the structure of a single underground culvert in this embodiment.
[0028] Figure 4 This is a cross-sectional schematic diagram of a single underground culvert in this embodiment.
[0029] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle.
[0030] Figure 6 This is a schematic diagram of the filter end cap in this embodiment.
[0031] Explanation of reference numerals in the attached drawings: 1. Main body of the culvert; 11. Water passage hole; 2. Filtration mechanism; 21. Mounting bracket; 211. Supporting slide column; 212. Supporting sliding sleeve; 22. Filter end cover; 221. Mounting part; 222. First filtration area; 223. Second filtration area; 224. Third filtration area; 225. Filter scraper; 2251. Discharge through hole; 2252. First guide surface; 226. Filter mesh; 23. Drive assembly; 231. Hydraulic push rod; 24. Sludge storage tank; 25. Cleaning assembly; 251. Cleaning spray gun; 252. Water supply assembly. Detailed Implementation
[0032] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.
[0033] Reference Figure 1 and Figure 2 A multi-hole parallel-arranged culvert includes a culvert body 1 and a filter mechanism 2 installed on the outlet side of the culvert body 1. The culvert body 1 has multiple parallel-arranged water passages 11, allowing rainwater and sewage to flow through them. In this embodiment, the culvert body 1 has six water passages 11, all of which are square holes.
[0034] Reference Figure 1 and Figure 3The filtration mechanism 2 includes a mounting bracket 21 installed on the outer end of the culvert body 1, filter end caps 22 slidably mounted on the mounting bracket 21 and corresponding one-to-one with the water passages 11, a drive assembly 23 mounted on the mounting bracket 21 for driving the filter end caps 22 to slide, and a sludge storage tank 24 mounted on the mounting bracket 21 and located below the outlet of the water passages 11. In this embodiment, there are six filter end caps 22, which are square end caps used to close the openings at the outlet ends of the water passages 11.
[0035] Reference Figure 4 and Figure 5 The mounting bracket 21 is a frame-type metal bracket and is installed on the outer end of the culvert body 1 using pre-embedded screws. The mounting bracket 21 has a sliding column assembly that corresponds one-to-one with the filter end cap 22 and allows the filter end cap 22 to slide horizontally. The sliding column assembly includes four horizontally arranged support sliding columns 211. Supporting sleeves 212 are provided at the four corners of the filter end cap 22 to cooperate with the support sliding columns 211. The cooperation between the support sliding columns 211 and the supporting sleeves 212 allows the filter end cap 22 to slide smoothly on the mounting bracket 21.
[0036] Reference Figure 4 and Figure 5 The drive assembly 23 includes a horizontally arranged hydraulic push rod 231 mounted on the mounting bracket 21. The top of the filter end cap 22 has a mounting portion 221 for connecting and fixing the output rod of the hydraulic push rod 231, wherein the mounting portion 221 and the output rod are connected and fixed with screws. The hydraulic push rod 231 can drive the filter end cap 22 to slide horizontally, thereby adjusting whether the filter end cap 22 covers the opening at the outlet end of the water passage 11. Since the drive assembly 23 used in this embodiment is a hydraulic push rod 231, when using the drive assembly 23, the operator needs to transport the hydraulic station to the vicinity of the drive assembly 23 and connect the hydraulic station and the drive assembly 23 to realize the operation of the drive assembly 23.
[0037] Reference Figure 6The filter end cap 22 has multiple sets of filter areas along its height, and filter mesh holes 226 are evenly distributed in each set of filter areas. The aperture of the filter mesh holes 226 in the filter areas increases with the height of the filter area. In this embodiment, there are three sets of filter areas, which are arranged sequentially from bottom to top as a first filter area 222, a second filter area 223, and a third filter area 224. The aperture of the filter mesh holes 226 in the first filter area 222 is 1 cm, the aperture of the filter mesh holes 226 in the second filter area 223 is 2 cm, and the aperture of the filter mesh holes 226 in the third filter area 224 is 3 cm. When water flows out through the water passage 11, impurities in the water are first filtered by the first filtration zone 222. The impurities accumulate on the inner side of the first filtration zone 222 and form silt, which gradually clogs the filter mesh 226 of the first filtration zone 222. At this time, the water is lifted by the silt and can flow out through the second filtration zone 223. When the silt clogs the filter mesh 226 of the second filtration zone 223, the water can finally be discharged through the filter mesh 226 of the third filtration zone 224. Since the filter mesh 226 of the third filtration zone 224 has a larger aperture, some silt can also be discharged through the third filtration zone 224, reducing the probability of the filter mesh 226 of the third filtration zone 224 becoming clogged.
[0038] Reference Figure 4 The filter end cap 22 is connected to a filter scraper 225 that extends into the water passage 11 and fits against the bottom surface of the water passage 11. The filter scraper 225 has a discharge through-hole 2251 that penetrates both the upper and lower surfaces. The discharge through-hole 2251 is an inverted frustum-shaped hole. The upper edge of the discharge through-hole 2251 coincides with the upper edge of the filter scraper 225. The inclination angle of the conical surface of the discharge through-hole 2251 is not less than 45°, which helps the sludge to slide smoothly from the discharge through-hole 2251. A first guide surface 2252 is provided on the side of the filter scraper 225 facing away from the filter end cap 22. The first guide surface 2252 can be an inclined plane or an arc-shaped surface.
[0039] Reference Figure 3 and Figure 4 The storage tank is a steel plate box with an open top, located below the water passage 11. The storage tank is fixed to the side wall of the culvert body 1 by anchor bolts and is used to temporarily store the dredged silt.
[0040] Reference Figure 3 and Figure 4To facilitate cleaning of the filter end caps 22, the multi-hole parallel-through culvert is also equipped with a cleaning assembly 25 mounted on the mounting bracket 21. The cleaning assembly 25 includes a cleaning spray gun 251 corresponding to each filter end cap 22 and used for cleaning the lower part of the filter end cap 22, and a water supply assembly 252 for supplying water to the cleaning spray gun 251. The cleaning spray gun 251 uses a high-pressure water gun-type nozzle, which can generate greater water pressure to effectively clean the filter screen holes on the filter end cap 22. The water supply assembly 252 can be a combination of a water pump and a water pipe; the water pump delivers water to the cleaning spray gun 251.
[0041] The implementation principle of a multi-hole parallel-through culvert in this application embodiment is as follows: A multi-hole parallel-through culvert includes a culvert body 1 and a filtration mechanism 2; the culvert body 1 is provided with multiple parallel water passage holes 1111; the filtration mechanism 2 includes a mounting bracket 21, a filter end cap 22 slidably mounted on the mounting bracket 21 and corresponding to the holes, a drive component 23, and a sludge storage tank 24; by setting the filtration mechanism 2, impurities and sludge in the water can be effectively filtered, and the filter scraper 225 cooperates with the filter end cap 22 to scrape off the sludge at the bottom of the culvert, and the drive component 23 drives the filter end cap 22 to slide horizontally, conveying the sludge through the discharge hole 2251 to the sludge storage tank 24, effectively reducing the sludge and impurities discharged from the culvert into the river.
[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A multi-hole parallel-arranged culvert, comprising a culvert body (1), wherein the culvert body (1) has a plurality of parallel-arranged water passage holes (11); characterized in that, It also includes a filtration mechanism (2); the filtration mechanism (2) includes a mounting bracket (21) located outside the water passage (11), a filter end cap (22) slidably mounted on the mounting bracket (21) and corresponding one-to-one with the water passage (11), a drive assembly (23) mounted on the mounting bracket (21) and used to drive the filter end cap (22) to slide, and a sludge storage tank (24) mounted on the mounting bracket (21) and located below the outlet of the water passage (11); the filter end cap (22) has a filter mesh (226) and is used to cover the outlet of the water passage (11), the filter end cap (22) is connected to a filter scraper (225) extending into the water passage (11) and fitting against the bottom surface of the water passage (11), the filter scraper (225) has a discharge through hole (2251) penetrating the upper and lower surfaces.
2. The multi-hole parallel-row underground culvert according to claim 1, characterized in that, The discharge through hole (2251) is an inverted frustum hole, and the upper edge of the discharge through hole (2251) coincides with the upper edge of the filter scraper (225).
3. The multi-hole parallel-row underground culvert according to claim 2, characterized in that, The inclination of the conical surface of the discharge through hole (2251) is not less than 45°.
4. The multi-hole parallel-row underground culvert according to claim 1, characterized in that, The filter scraper (225) has a first guide surface (2252) on the side opposite to the filter end cap (22).
5. A multi-hole parallel-row underground culvert according to claim 1, characterized in that, The filter end cap (22) is provided with multiple sets of filter areas along the height direction, and the aperture of the filter mesh (226) of the filter area increases with the increase of the height of the filter area.
6. A multi-hole parallel-row underground culvert according to claim 5, characterized in that, It also includes a cleaning assembly (25) installed on the mounting bracket (21), the cleaning assembly (25) including a cleaning spray gun (251) corresponding to the filter end cap (22) and used for cleaning the lower part of the filter end cap (22) and a water supply assembly (252) for supplying water to the cleaning spray gun (251).
7. A multi-hole parallel-row underground culvert according to claim 1, characterized in that, The mounting bracket (21) has a slide column assembly for horizontal sliding of the filter end cap (22), the drive assembly (23) includes a hydraulic push rod (231) mounted on the mounting bracket (21) and arranged horizontally, and the top of the filter end cap (22) has a mounting portion (221) for connecting and fixing the output rod of the hydraulic push rod (231).
8. A multi-hole parallel-row underground culvert according to claim 7, characterized in that, The slide assembly includes four horizontally arranged support slides (211), and the filter end cap (22) is provided with support sleeves (212) at the four corners for cooperating with the support slides (211).