A prefabricated road interception and drainage filter structure

Abstract

This invention relates to the field of road construction technology, and particularly to a prefabricated road interception and drainage filter structure, comprising a concrete shell with a stepped supporting protrusion at the upper opening of the concrete shell; the prefabricated road interception and drainage filter structure also includes an inner liner unit placed inside the concrete shell, the inner liner unit including an inner liner frame placed inside the concrete shell. The filter unit used in this invention is modularly designed and has two separate filter sections. The two filter sections can simultaneously drain and filter rainwater. When a filter section becomes clogged, it can be cleaned separately without affecting the normal drainage and filtration of rainwater. This not only improves the efficiency of ground rainwater drainage, but also effectively prevents debris from entering the sewage pipe without adding any steps, thereby preventing sewage pipe blockage and avoiding urban flooding.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, and in particular to a prefabricated road interception and drainage filter structure. Background Technology

[0002] Prefabricated road interception and drainage inlets are facilities used for collecting, discharging, and filtering rainwater from roads. They have advantages such as convenient construction and stable quality.

[0003] Currently, urban road pipe networks generally use open storm drains, allowing surface runoff to flow directly into drainage systems and rivers. With rapid urban development, the drawbacks of open storm drains are becoming increasingly apparent. Therefore, there is a need for prefabricated road interception and filtration storm drain structures capable of intercepting large solid waste and separating rainwater and sewage. However, existing prefabricated road interception and filtration storm drain structures become clogged during heavy rain or storms due to rainwater carrying large amounts of debris. Cleaning is necessary, but because the filter structure in these structures only has one working area, it malfunctions during cleaning, leading to prolonged rainwater accumulation on the road surface and causing urban flooding. Furthermore, cleaning the filter structure requires removing it from the storm drain. To prevent rainwater carrying large debris from directly entering the sewage pipe and causing blockages, water barriers around the drain outlet are also needed, increasing the complexity and difficulty of the cleaning process.

[0004] Therefore, there is an urgent need to provide prefabricated road interception and drainage filter structures that can operate continuously and reduce the difficulty of cleaning. Summary of the Invention

[0005] Therefore, it is necessary to provide a prefabricated road interception and drainage filter structure to solve the problems of existing prefabricated road interception and drainage filter structures failing to function properly during cleaning and the drainage pipe becoming clogged during cleaning.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a prefabricated road interception and drainage filter structure, comprising: a concrete shell, wherein a stepped support protrusion is provided at the upper opening of the concrete shell.

[0007] The prefabricated road interception and drainage filter structure also includes an inner tank unit, which is placed inside a concrete shell. The inner tank unit includes an inner tank frame placed inside the concrete shell. The inner tank frame has a rectangular structure with an opening at the top. Multiple evenly distributed drainage holes are opened on the frame wall of the inner tank frame near the bottom. Two symmetrically distributed grid covers are placed on the top of the inner tank frame.

[0008] The prefabricated road interception and drainage rainwater inlet structure also includes a filter unit, which is set inside the inner liner frame. The filter unit includes a support platform installed in the middle of the inner surface of the inner liner frame wall. A turbulence-dispersing part is placed on the upper end of the support platform, and two symmetrically distributed filter parts are placed on the turbulence-dispersing part.

[0009] The turbulence section includes a turbulence plate placed on the upper part of the support platform, a partition plate installed in the middle of the upper part of the turbulence plate, and a plurality of evenly distributed filter holes on the partition plate.

[0010] The filter section includes a dirt-blocking frame placed on the upper part of the baffle plate. Multiple evenly distributed filter holes are provided on the bottom wall of the dirt-blocking frame. A limit frame is installed on the upper part of the dirt-blocking frame. Multiple filter plates are located on the outside of the limit frame. The lower ends of the filter plates are hinged to the upper end of the dirt-blocking frame. The multiple filter plates in a vertical state are in close contact with each other.

[0011] Preferably, the inner liner unit further includes two louvered sections I disposed on a set of two symmetrical frame walls of the inner liner frame and two louvered sections II disposed on another set of two symmetrical frame walls. The structures of the louvered sections I and II are the same, only their sizes are different.

[0012] Preferably, the louvered section includes mounting holes formed on the inner frame wall, and multiple rotating shafts evenly distributed from top to bottom are installed in the mounting holes, with louvered plates rotatably connected to the rotating shafts.

[0013] Preferably, the spoiler further includes two placement openings symmetrically formed on the spoiler plate, and a limiting member located at the placement opening is engaged on the spoiler plate.

[0014] Preferably, the filter section further includes a lifting rod that passes through and is rotatably connected to the middle of the bottom wall of the dirt-blocking frame, and a limit plate is installed at the lower end of the lifting rod.

[0015] Preferably, the limiting member has an inverted V-shaped plate structure, with an insertion hole on the bottom wall of the limiting member and a locking hole on each of the two vertical sections adjacent to the bottom wall of the limiting member.

[0016] Preferably, a plurality of filter elements are placed at the bottom upper end of the inner liner frame, and the plurality of filter elements are respectively attached to the lower side of the inner surface of a plurality of frame walls of the inner liner frame.

[0017] Preferably, a drainage channel is provided between the concrete shell and the inner liner frame wall.

[0018] In summary, the present invention has the following beneficial technical effects: 1. The filter unit adopted in the present invention is modularly designed and has two separate filter sections. The two filter sections can simultaneously drain and filter rainwater. When the filter section is blocked, it can be cleaned separately without affecting the normal drainage and filtration of rainwater. This not only improves the efficiency of rainwater drainage from the ground, but also effectively prevents debris from entering the sewage pipe without adding any steps, thereby preventing the sewage pipe from becoming blocked and avoiding urban flooding.

[0019] 2. The filter section used in this invention can be opened outwards during cleaning, making it convenient for sanitation workers to remove debris from deeper areas and avoiding the phenomenon of debris residue. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0022] Figure 2 A front view of the present invention is shown.

[0023] Figure 3 A left view of the present invention is shown.

[0024] Figure 4 It shows Figure 2 Sectional view of AA.

[0025] Figure 5 It shows Figure 3 A cross-sectional view of BB.

[0026] Figure 6 A schematic diagram of the structure for removing the concrete shell and grating cover plate according to the present invention is shown.

[0027] Figure 7 A schematic diagram of the structure of the turbulence-disrupting part and the filtering part of the present invention is shown.

[0028] Figure 8 A schematic diagram of the structure of the flow-disrupting part of the present invention is shown.

[0029] Figure 9 A schematic diagram of the filter section of the present invention is shown.

[0030] Figure 10A schematic diagram of the structure of the dirt-blocking frame, the second filter hole, and the limiting frame of the present invention is shown.

[0031] The above-mentioned attached drawings include the following reference numerals: 1. Concrete shell; 2. Inner liner unit; 20. Inner liner frame; 21. Drainage hole; 22. Grille cover plate; 23. Louver section one; 230. Mounting hole; 231. Rotating shaft; 232. Louver plate; 24. Louver section two; 3. Filter unit; 30. Support platform; 31. Baffle section; 310. Baffle plate; 311. Divider plate; 312. Filter hole one; 313. Placement opening; 314. Limiting component; 315. Through hole; 316. Locking hole; 32. Filter section; 320. Dirt baffle frame; 321. Filter hole two; 322. Limiting frame; 323. Filter plate; 324. Lifting rod; 325. Limiting plate; 4. Filter element; 5. Drainage channel. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] See Figures 1-4 A prefabricated road interception and drainage filter structure includes a concrete shell 1, with a stepped support protrusion 10 at the upper opening of the concrete shell 1.

[0034] In practice, the concrete shell 1 is transported to the construction site using existing transportation equipment. An installation pit is dug in the ground at the construction site. The concrete shell 1 is then lifted into the pit using an existing crane. Finally, the lower ends of the concrete shell 1 are connected to the existing sewage pipes.

[0035] See Figure 1 , Figure 4 and Figure 5 The prefabricated road intercepting and filtering rainwater inlet structure also includes an inner tank unit 2 placed inside a concrete shell 1. The inner tank unit 2 includes an inner tank frame 20 placed inside the concrete shell 1. The inner tank frame 20 has a rectangular structure with an opening at the top. The frame wall of the inner tank frame 20 is provided with multiple evenly distributed drainage holes 21 near the bottom. Two symmetrically distributed grid cover plates 22 are placed at the top of the inner tank frame 20. Multiple filter elements 4 are placed at the bottom top of the inner tank frame 20. The multiple filter elements 4 are respectively attached to the lower side of the inner surface of multiple frame walls of the inner tank frame 20.

[0036] See Figure 4 and Figure 5A drainage channel 5 is provided between the concrete shell 1 and the inner frame 20.

[0037] In practice, before installing the inner liner frame 20, multiple filter elements 4 are first installed on the lower side of the inner surface of multiple frame walls of the inner liner frame 20, so that the multiple filter elements 4 are in close contact with the multiple inner walls of the inner liner frame 20. Under light rain conditions, the filter elements 4 filter and adsorb pollutants in the rainwater, preventing silt from mixing into the discharge. Then, the inner liner frame 20 is placed inside the concrete shell 1. The supporting protrusion 10 at the upper end of the concrete shell 1 supports and limits the upper end of the inner liner frame 20. After the inner liner frame 20 is placed, a drainage channel 5 for drainage is formed between it and the concrete shell 1.

[0038] See Figure 4 , Figure 5 and Figure 6 The prefabricated road intercepting and filtering rainwater inlet structure also includes a filter unit 3 set inside the inner frame 20. The filter unit 3 includes a support platform 30 installed in the middle of the inner surface of the inner frame 20. A turbulence-disrupting part 31 is placed on the upper end of the support platform 30. The turbulence-disrupting part 31 includes a turbulence-disrupting plate 310 placed on the upper end of the support platform 30. A partition plate 311 is installed in the middle of the upper end of the turbulence-disrupting plate 310. Multiple evenly distributed filter holes 312 are opened on the partition plate 311.

[0039] In actual operation, the support platform 30 is fixedly connected to the inner wall of the inner liner frame 20 by welding or snap-fit. After the inner liner frame 20 is installed, the baffle 310 is placed on the upper end of the support platform 30. The baffle 310 drives the partition plate 311 to move into the inner liner frame 20 at the same time. The baffle 310 has multiple strip-shaped through holes for drainage.

[0040] See Figure 6 , Figure 7 and Figure 8 The spoiler 31 also includes two placement openings 313 symmetrically opened on the spoiler plate 310. A limiting member 314 located at the placement opening 313 is snapped onto the spoiler plate 310. The limiting member 314 has an inverted V-shaped plate structure. An insertion hole 315 is opened on the bottom wall of the limiting member 314. A locking hole 316 is opened on each of the two vertical sections adjacent to the bottom wall of the limiting member 314.

[0041] In practice, after the spoiler 310 is installed, two limiting members 314 are placed in the two placement openings 313. The limiting members 314 are engaged with the spoiler 310 by snap-fit ​​placement.

[0042] See Figure 5 , Figure 6 , Figure 7 , Figure 9 and Figure 10Two symmetrically distributed filter sections 32 are placed on the turbulence section 31. Each filter section 32 includes a dirt-blocking frame 320 placed on the upper end of the turbulence plate 310. Multiple evenly distributed filter holes 321 are opened on the bottom wall of the dirt-blocking frame 320. A limiting frame 322 is installed on the upper end of the dirt-blocking frame 320. Multiple filter plates 323 are located on the outside of the limiting frame 322. The lower end of the filter plates 323 is hinged to the upper end of the dirt-blocking frame 320. The multiple filter plates 323 in the vertical state are in close contact with each other.

[0043] See Figure 7 and Figure 9 The filter section 32 also includes a lifting rod 324 that passes through and is rotatably connected to the middle of the bottom wall of the dirt-blocking frame 320, and a limit plate 325 is installed at the lower end of the lifting rod 324.

[0044] In practice, after the limiting component 314 is placed, the two filter sections 32 are placed on both sides of the partition plate 311. When the filter sections 32 are placed, the dirt-blocking frame 320 first fits against the upper end of the baffle plate 310. The dirt-blocking frame 320 drives the four filter plates 323 to move to the inner liner frame 20. The inner liner frame 20, the partition plate 311, and the limiting frame 322 cooperate to ensure that the four filter plates 323 are in a vertical position and tightly attached to each other, ensuring that rainwater can only flow through the four filter plates 323. The holes on 23 and the filter holes 321 are discharged. While the dirt-blocking frame 320 is placed, the lifting rod 324 drives the limiting plate 325 to pass through the insertion hole 315. Two limiting rings are installed in the middle of the lifting rod 324, which are distributed on the upper and lower sides of the bottom wall of the dirt-blocking frame 320. The limiting rings limit the vertical direction of the lifting rod 324. After the two filter parts 32 are placed, the two grid cover plates 22 are placed on the upper end of the inner liner frame 20 and limit the inner liner frame 20.

[0045] See Figures 4-6 The inner liner unit 2 also includes two louvered sections 23 on a set of two symmetrical frame walls of the inner liner frame 20 and two louvered sections 24 on another set of two symmetrical frame walls. The louvered sections 23 and louvered sections 24 have the same structure but different sizes.

[0046] See Figures 4-6 The louvered part 23 includes mounting holes 230 formed on the frame wall of the inner liner frame 20. Multiple rotating shafts 231 are evenly distributed from top to bottom in the mounting holes 230, and louvered plates 232 are rotatably connected to the rotating shafts 231.

[0047] In normal operation, multiple louvers 232 adhere to each other under their own weight, sealing the mounting holes 230 and preventing insects and polluted gases from being discharged from the sewage pipe. When it rains lightly, rainwater carries debris such as twigs, leaves, and plastics towards the concrete shell 1. The grating cover 22 filters larger debris in the rainwater. After the first filtration, the rainwater enters the two filter sections 32 inside the inner liner frame 20 through the grating cover 22. The dirt-blocking frame 320 performs a second filtration of the rainwater. The rainwater falls to the lower end of the inner liner frame 20 through the second filter hole 321, and then passes through multiple filter elements 4 for a third filtration before being discharged from the drain hole 21. At this point, the rainwater is not enough to open the louvers 232.

[0048] During heavy rain or storms, a large amount of rainwater rushes into the concrete shell 1. The filter holes 321 on the dirt baffle frame 320 are insufficient to quickly drain the large amount of rainwater. Furthermore, as time increases, debris accumulates on the filter holes 321, causing rainwater to gradually accumulate between the multiple filter plates 323. With the accumulation of rainwater, the pressure exerted by the rainwater gradually pushes open the multiple louvers 232, ensuring that the rainwater is quickly discharged from the drainage channel 5. As the drainage time increases, the impurities in the rainwater... As debris gradually accumulates between the multiple filter plates 323 and the dirt-blocking frame 320, the filter section 32 becomes clogged. At this point, sanitation workers need to clean it. During cleaning, first remove one grid cover 22 from the top of the inner frame 20. Then, grasp the lifting rod 324 and pull it upwards. The lifting rod 324 moves the dirt-blocking frame 320, multiple filter plates 323, and debris upwards. When the dirt-blocking frame 320 reaches the end of the inner frame 20, rotate the lifting rod 324. 4. The limiting plate 325 is rotated and moved into the two locking holes 316. The limiting member 314 cooperates with the limiting plate 325 to limit the dirt-blocking frame 320. At this time, the multiple filter plates 323 can rotate outward, making it easier for sanitation workers to remove debris from the dirt-blocking frame 320 and the multiple filter plates 323, thus achieving the function of cleaning. While one filter section 32 is being cleaned, the other filter section 32 continues to collect and filter rainwater from the road surface without affecting the normal drainage of rainwater. When one filter section 32 is being cleaned, the rainwater in the other filter section 32 can be discharged from the filter hole 312 on the partition plate 311, further increasing the outlet for rainwater drainage. After the debris in one filter section 32 is cleaned, the limiting member 314 is released from limiting the limiting plate 325, and the filter section 32 re-enters the inner frame 20. The previous cleaning steps are repeated to clean the other filter section 32. After cleaning, the filter section 32 continues to drain rainwater.

[0049] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A prefabricated road intercepting and filtering rainwater inlet structure, comprising a concrete shell, wherein a stepped supporting protrusion is provided at the upper opening of the concrete shell, characterized in that: Also includes: The inner liner unit is placed inside the concrete shell. The inner liner unit includes an inner liner frame placed inside the concrete shell. The inner liner frame has a rectangular structure with an opening at the top. Multiple evenly distributed drainage holes are opened on the frame wall of the inner liner frame near the bottom. Two symmetrically distributed grid cover plates are placed on the top of the inner liner frame. A filter unit is installed inside the inner liner frame. The filter unit includes a support platform installed in the middle of the inner surface of the inner liner frame wall. A turbulence part is placed on the upper end of the support platform, and two symmetrically distributed filter parts are placed on the turbulence part. The turbulence section includes a turbulence plate placed on the upper part of the support platform, a partition plate installed in the middle of the upper part of the turbulence plate, and a plurality of evenly distributed filter holes opened on the partition plate. The filter section includes a dirt-blocking frame placed on the upper part of the baffle plate. Multiple evenly distributed filter holes are provided on the bottom wall of the dirt-blocking frame. A limit frame is installed on the upper part of the dirt-blocking frame. Multiple filter plates are located on the outside of the limit frame. The lower end of the filter plates is hinged to the upper end of the dirt-blocking frame. The multiple filter plates in a vertical state are in close contact with each other. The spoiler also includes two placement openings symmetrically opened on the spoiler plate, and a limiting member located at the placement opening is snapped onto the spoiler plate; The filter section also includes a lifting rod that passes through and is rotatably connected to the middle of the bottom wall of the dirt-blocking frame, and a limit plate is installed at the lower end of the lifting rod; The limiting member has an inverted V-shaped plate structure. The bottom wall of the limiting member has an insertion hole, and the two vertical sections adjacent to the bottom wall of the limiting member have locking holes.

2. The prefabricated road interception and drainage filter structure according to claim 1, characterized in that: The inner liner unit also includes two louvered sections 1 and two louvered sections 2 on a set of symmetrical two frame walls of the inner liner frame. The structures of louvered sections 1 and louvered sections 2 are the same, only their sizes are different.

3. The prefabricated road interception and drainage filter structure according to claim 2, characterized in that: The louvered section includes mounting holes formed on the inner frame wall, and multiple rotating shafts evenly distributed from top to bottom are installed in the mounting holes, with louvered plates rotatably connected to the rotating shafts.

4. The prefabricated road interception and drainage filter structure according to claim 1, characterized in that: Multiple filter elements are placed at the bottom upper end of the inner liner frame, and the multiple filter elements are respectively attached to the lower side of the inner surface of multiple frame walls of the inner liner frame.

5. The prefabricated road interception and drainage filter structure according to claim 1, characterized in that: A drainage channel is provided between the concrete shell and the inner liner frame wall.

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