Municipal garden drainage structure
By using a double-layer filter plate and a propeller scraper design, the problem of low rainwater flow efficiency and debris removal in municipal garden drainage structures with large areas of leaves has been solved, achieving efficient rainwater filtration and debris removal.
Patent Information
- Application Number
- CN202422810112.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing municipal and garden drainage structures suffer from reduced rainwater throughput when faced with large areas of leaves and other debris, making them unable to effectively filter and clean up the water.
It adopts a double-layer filter plate structure, combined with a propeller and scraper design. The first filter plate blocks large leaves, and the second filter plate blocks small leaves. The propeller drives the rotating shaft to rotate, and the scraper pushes the debris into the inner tube. The filter ring and handle plate make it easy to clean.
It improves rainwater throughput, ensures effective debris removal, reduces the risk of blockages, and simplifies the cleaning process.
Smart Images

Figure CN223343408U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of garden drainage, in particular to a municipal garden drainage structure. Background Art
[0002] With the continuous development of urbanization, we often see some municipal projects involving people's livelihood, such as municipal garden projects. During the construction process, drainage systems are usually built in gardens, roads or open spaces to reduce water accumulation on the surrounding roads or ground.
[0003] A Chinese utility model patent with publication number CN212772739U discloses a municipal garden drainage structure, which includes a drainage well buried under the road surface, a rainwater grate installed at the upper end of the drainage well, and a drainage pipe connected to the lower end of the drainage well. A filter component is provided in the drainage well to collect debris that falls into the drainage well, thereby improving the drainage efficiency of the drainage well.
[0004] Regarding the above-mentioned related technologies, the inventor believes that there are the following defects: the above-mentioned device can only collect debris passing through the rain grate. However, when there are a large number of large leaves on the ground, the leaves are washed onto the rain grate by rainwater and cannot be blocked by the rain grate, which greatly reduces the efficiency of rainwater passing through the rain grate. Utility Model Content
[0005] In order to solve the above problems, the utility model provides a municipal garden drainage structure.
[0006] The above technical objectives of the present utility model are achieved through the following technical solutions: A municipal garden drainage structure includes a first outer tube, a second outer tube is arranged inside the first outer tube, the bottoms of the first outer tube and the second outer tube are connected by a first connecting ring, a first inner tube and a second inner tube are arranged between the first outer tube and the first inner tube, the bottoms of the first inner tube and the second inner tube are connected by a second connecting ring, a first filter plate is arranged on the top of the second outer tube, a plurality of first filter holes are formed on the first filter plate, a second filter plate is arranged inside the second outer tube, a plurality of second filter holes are formed on the second filter plate, the second filter holes are smaller than the first filter holes, a rotating shaft is arranged on the first filter plate and the second filter plate are jointly rotated, a propeller is arranged at the bottom of the rotating shaft, two first scrapers are symmetrically arranged on the rotating shaft, the bottom of the first scraper contacts the first filter plate, two second scrapers are symmetrically arranged on the rotating shaft, the bottom of the second scraper contacts the second filter plate, a plurality of strip holes are circumferentially spaced apart on the second outer tube and the second inner tube, and the lower side hole wall of the strip hole is flush with the top of the second filter plate.
[0007] By adopting the above technical solution, an installation groove is provided on the ground at the sewer for placing the drainage structure. When it rains, rainwater will carry leaves and other debris with it and flow into the sewer. Large leaves and other debris will be blocked by the first filter plate, while smaller leaves and other debris will pass through the first filter holes with the water flow and reach the second filter plate; smaller leaves and other debris will be blocked by the second filter plate, and the filtered water will pass through the second filter holes to flush the propeller, causing the propeller to rotate, driving the rotating shaft to rotate, thereby driving the first scraper and the second scraper to rotate around the rotating shaft, pushing the leaves and other debris on the first filter plate and the second filter plate to the outside of the first filter plate and the second filter plate, and the leaves and other debris on the first filter plate fall from the upper side of the second inner tube into the space between the first inner tube and the second inner tube, and the leaves and other debris on the second filter plate pass through the strip holes into the space between the first inner tube and the second inner tube, thereby ensuring the efficiency of rainwater passing through; the staff can take out the first inner tube and the second inner tube to pour out the leaves and other debris between the first inner tube and the second inner tube.
[0008] Furthermore, a plurality of protrusions are circumferentially spaced apart on the inner wall of the upper portion of the first inner tube, a filter ring is commonly provided on the plurality of protrusions, a plurality of third filter holes are opened on the filter ring, and two handle plates are provided on the filter ring.
[0009] By adopting the above technical solution, a protrusion, a filter ring, a third filter hole, and a handle plate are set. The leaves and other debris cleaned from the first filter plate fall onto the filter ring. The handle plate can be used to easily take out the filter ring and clean the leaves and other debris on it.
[0010] Furthermore, the rotating shaft is located between the first filter plate and the second filter plate and has a plurality of connecting rods arranged circumferentially at intervals on the rod body. The plurality of connecting rods are jointly provided with a rotating ring at one end away from the rotating shaft, and a plurality of inclined plates are arranged circumferentially at intervals on the inner wall of the rotating ring.
[0011] By adopting the above technical solution, the connecting rod, the rotating ring and the inclined plate are arranged, so that the water flow passing through the first filter plate and the second filter plate can also drive the rotating shaft to rotate, thereby ensuring the stability of the rotating shaft.
[0012] Furthermore, the second outer tube is provided with a tapered tube below the second filter plate, and the top opening of the tapered tube is larger than the bottom opening.
[0013] By adopting the above technical solution, a tapered tube is provided on the second outer tube below the second filter plate. The tapered tube concentrates the water flow, thereby achieving a better effect of impacting the rotation of the propeller.
[0014] Furthermore, a plurality of water flow holes are circumferentially spaced apart at the bottom of the second outer tube and the second inner tube.
[0015] By adopting the above technical solution, a plurality of water flow holes are circumferentially spaced apart at the bottom of the second outer tube and the second inner tube, so that water between the first inner tube and the second inner tube can flow out, making it convenient for staff to take out the first inner tube and the second inner tube for cleaning.
[0016] Furthermore, two handle blocks are provided on the inner wall of the first inner tube, handle grooves are provided on the side walls of the handle blocks, and avoidance grooves are provided on the filter ring corresponding to the handles.
[0017] By adopting the above technical solution, a handle block, a handle groove and an avoidance groove are provided, which makes it convenient for staff to take out the first inner tube and the second inner tube.
[0018] Furthermore, a first calibration groove is provided at the top of the first outer tube, and a second calibration groove is provided at the top of the first inner tube.
[0019] By adopting the above technical solution, a first calibration slot and a second calibration slot are set up. After cleaning the first and second inner tubes, workers need to ensure that the first and second calibration slots are aligned when they need to be placed back between the first and second outer tubes. When the first and second calibration slots are aligned, the water flow holes on the second outer and second inner tubes correspond one-to-one and are connected, and the strip holes on the second outer and second inner tubes correspond one-to-one and are connected.
[0020] In summary, the utility model has the following beneficial effects: when it rains, rainwater will carry leaves and other debris with it and flow into the sewer, and larger leaves and other debris will be blocked by the first filter plate, while smaller leaves and other debris will pass through the first filter holes with the water flow and reach the second filter plate; smaller leaves and other debris will be blocked by the second filter plate, and the filtered water will pass through the second filter holes to flush the propeller, causing the propeller to rotate, driving the rotating shaft to rotate, thereby driving the first scraper and the second scraper to rotate around the rotating shaft, pushing the leaves and other debris on the first filter plate and the second filter plate to the outside of the first filter plate and the second filter plate, and the leaves and other debris on the first filter plate fall from the upper side of the second inner tube between the first inner tube and the second inner tube, and the leaves and other debris on the second filter plate pass through the strip holes and fall between the first inner tube and the second inner tube, thereby ensuring the efficiency of rainwater passing through; the staff can take out the first inner tube and the second inner tube to pour out the leaves and other debris between the first inner tube and the second inner tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;
[0022] Figure 2 This is a schematic diagram of the internal structure of the first outer tube of an embodiment of the utility model;
[0023] Figure 3 yes Figure 2 A magnified view of part A;
[0024] Figure 4 yes Figure 2 A magnified view of part B;
[0025] Figure 5 It is a schematic diagram of the internal structure of the first appearance of the embodiment of the utility model from another angle.
[0026] In the figure: 10, first outer tube; 11, second outer tube; 12, first connecting ring; 13, tapered tube; 14, handle block; 15, handle groove; 16, first calibration groove; 20, first inner tube; 21, second inner tube; 22, second connecting ring; 23, second calibration groove; 30, first filter plate; 31, first filter hole; 40, second filter plate; 41, second filter hole; 50, rotating shaft; 51, propeller; 52, first scraper; 53, second scraper; 54, connecting rod; 55, rotating ring; 56, inclined plate; 60, strip hole; 70, protrusion; 71, filter ring; 72, third filter hole; 73, handle plate; 74, avoidance groove; 80, water flow hole. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0028] like Figure 1-5As shown, the embodiment of the present application discloses a municipal garden drainage structure, including a first outer tube 10, a second outer tube 11, a first inner tube 20, and a second inner tube 21. The second outer tube 11 is concentrically arranged in the first outer tube 10. The bottoms of the first outer tube 10 and the second outer tube 11 are connected by a first connecting ring 12, so that the space between the first outer tube 10, the second outer tube 11, and the first connecting ring 12 forms an annular groove. The first inner tube 20 and the second inner tube 21 are both concentrically arranged between the first outer tube 10 and the first inner tube 20. The outer wall of the first inner tube 20 contacts the inner wall of the first outer tube 10, and the inner wall of the second inner tube 21 contacts the outer wall of the first outer tube 10. The bottoms of the first inner tube 20 and the second inner tube 21 are connected by a second connecting ring 22, so that the space between the first inner tube 20, the second inner tube 21, and the second connecting ring 22 forms an annular groove. A first filter plate 30 is provided on the top of the second outer tube 11, and a plurality of first filter holes 31 are opened on the first filter plate 30. A second filter plate 40 is provided in the middle part of the second outer tube 11, and a plurality of second filter holes 41 are opened on the second filter plate 40. The second filter holes 41 are smaller than the first filter holes 31. An installation groove is provided on the ground at the sewer for placing the drainage structure. When it rains, rainwater will flow into the sewer with debris such as leaves. Larger debris such as leaves will be blocked by the first filter plate 30, and smaller debris such as leaves will pass through the first filter holes 31 with the water flow and reach the second filter plate 40. The smaller debris such as leaves will be blocked by the second filter plate 40, and the water will flow into the sewer through the second filter holes 41.
[0029] Specifically, a rotating shaft 50 is coaxially mounted on the first and second filter plates 30, 40, and is concentric with the first outer tube 10. Circular holes are formed in the center of each of the first and second filter plates 30, 40, and the rotating shaft 50 is rotatably connected to the holes. A propeller 51 is positioned at the bottom of the rotating shaft 50. Filtered water flows through the second filter holes 41, flushing the propeller 51 and causing it to rotate, driving the rotating shaft 50. A mounting bracket is positioned at the bottom of the second inner tube 21, and the rotating shaft 50 is rotatably connected to the bracket, further ensuring the stability of the rotating shaft 50.
[0030] The second outer tube 11 is located below the second filter plate 40 and is provided with a tapered tube 13. The top opening of the tapered tube 13 is larger than the bottom opening. The tapered tube 13 concentrates the water flow, thereby improving the rotation effect of the impact propeller 51. The rotating shaft 50 is located between the first filter plate 30 and the second filter plate 40. A plurality of connecting rods 54 are circumferentially spaced on the shaft. The connecting rods 54 are collectively provided with a rotating ring 55 at one end away from the rotating shaft 50. The inner wall of the rotating ring 55 is provided with a plurality of inclined plates 56 at circumferential intervals. This ensures that the water flow passing between the first filter plate 30 and the second filter plate 40 can also drive the rotating shaft 50 to rotate, thereby ensuring the stability of the rotating shaft 50.
[0031] During setup, two first scrapers 52 are symmetrically mounted on the rotating shaft 50. The bottoms of the first scrapers 52 contact the first filter plate 30. Rotation of the rotating shaft 50 drives the first scrapers 52, pushing debris such as leaves from the first filter plate 30 outward. Several protrusions 70 are circumferentially spaced on the upper inner wall of the first inner tube 20. These protrusions 70 are collectively mounted on a filter ring 71 with a plurality of third filter holes 72. Leaves and other debris removed from the first filter plate 30 fall onto the filter ring 71. Two handles 73 are provided on the filter ring 71 to facilitate removal and cleaning of debris. The first scrapers 52 are detachably connected to the rotating shaft 50, and the first filter plate 30 is detachably connected to the second outer tube 11. After extended use, the first scrapers 52 can be removed, and the first filter plate 30 can then be removed to clean weeds entangled on the connecting rod 54 and the inclined plate 56.
[0032] Two second scrapers 53 are symmetrically mounted on the rotating shaft 50. The bottoms of the second scrapers 53 contact the second filter plate 40. Rotation of the rotating shaft 50 drives the second scrapers 53 to rotate, pushing debris such as leaves on the second filter plate 40 outward from the second filter plate 40 to prevent clogging. A plurality of strip-shaped holes 60 are circumferentially spaced apart on the second outer tube 11 and the second inner tube 21. The strip-shaped holes 60 on the second outer tube 11 communicate with corresponding strip-shaped holes 60 on the second inner tube 21. The lower walls of the strip-shaped holes 60 are flush with the top of the second filter plate 40. Debris such as leaves on the second filter plate 40 passes through the strip-shaped holes 60 and falls between the first inner tube 20 and the second inner tube 21. A worker can remove the first and second inner tubes 20, 21 to pour out the debris between the first and second inner tubes 20, 21. Two handle blocks 14 are provided on the inner wall of the first inner tube 20 , and handle grooves 15 are provided on the side walls of the handle blocks 14 . The filter ring 71 is provided with avoidance grooves 74 corresponding to the handles, so that the staff can take out the first inner tube 20 and the second inner tube 21 for cleaning.
[0033] In specific configuration, a plurality of water holes 80 are circumferentially spaced apart at the bottom of the second outer tube 11 and the second inner tube 21, allowing water to flow out from between the first inner tube 20 and the second inner tube 21. The small diameter of the water holes 80 prevents debris such as leaves from passing through. A first calibration groove 16 is provided at the top of the first outer tube 10, and a second calibration groove 23 is provided at the top of the first inner tube 20. After cleaning the first and second inner tubes 20, 21, workers need to ensure that the first and second calibration grooves 16, 23 are aligned when placing them back between the first and second outer tubes 10, 11. When the first and second calibration grooves 16, 23 are aligned, the water holes 80 on the second outer tube 11 and the second inner tube 21 correspond one-to-one and are connected, and the strip holes 60 on the second outer tube 11 and the second inner tube 21 correspond one-to-one and are connected. When this drainage device is on the ground or near a road, a warning sign should be posted to prevent the rotating first scraper 52 from hitting pedestrians' feet.
[0034] The working principle of a municipal garden drainage structure in this embodiment is as follows: when it rains, rainwater will carry leaves and other debris with it and flow into the sewer. Larger leaves and other debris will be blocked by the first filter plate 30, while smaller leaves and other debris will flow through the first filter holes 31 with the water flow and reach the second filter plate 40. During the falling process, the water flow will impact the inclined plate 56, driving the rotating shaft 50 to rotate; smaller leaves and other debris will be blocked by the second filter plate 40, and the filtered water will flow through the second filter holes 41 to flush the propeller 51, causing the propeller 51 to rotate, driving the rotating shaft 50 to rotate, thereby driving the first scraper 52 and the second scraper 53 to rotate. The shaft 50 rotates, pushing the leaves and other debris on the first filter plate 30 and the second filter plate 40 toward the outside of the first filter plate 30 and the second filter plate 40. The leaves and other debris on the first filter plate 30 fall from the upper side of the second inner tube 21 onto the filter ring 71, and the leaves and other debris on the second filter plate 40 pass through the strip holes 60 and fall between the first inner tube 20 and the second inner tube 21, ensuring the efficiency of rainwater passing through; the staff pulls the handle block 14 to take out the first inner tube 20 and the second inner tube 21, and then pulls the handle plate 73 to take out the filter ring 71 for cleaning, and then pours out the leaves and other debris between the first inner tube 20 and the second inner tube 21.
[0035] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. A municipal garden drainage structure, characterized by: The invention comprises a first outer tube (10), a second outer tube (11) is arranged inside the first outer tube (10), the bottoms of the first outer tube (10) and the second outer tube (11) are connected by a first connecting ring (12), a first inner tube (20) and a second inner tube (21) are arranged between the first outer tube (10) and the first inner tube (20), the bottoms of the first inner tube (20) and the second inner tube (21) are connected by a second connecting ring (22), a first filter plate (30) is arranged on the top of the second outer tube (11), a plurality of first filter holes (31) are opened on the first filter plate (30), a second filter plate (40) is arranged inside the second outer tube (11), a plurality of second filter holes (41) are opened on the second filter plate (40), and the The second filter hole (41) is smaller than the first filter hole (31); a rotating shaft (50) is provided on the first filter plate (30) and the second filter plate (40) for common rotation; a propeller (51) is provided at the bottom of the rotating shaft (50); two first scrapers (52) are symmetrically provided on the rotating shaft (50); the bottoms of the first scrapers (52) are in contact with the first filter plate (30); two second scrapers (53) are symmetrically provided on the rotating shaft (50); the bottoms of the second scrapers (53) are in contact with the second filter plate (40); a plurality of strip holes (60) are circumferentially spaced apart on the second outer tube (11) and the second inner tube (21); the lower side hole walls of the strip holes (60) are flush with the tops of the second filter plates (40).
2. A municipal garden drainage structure according to claim 1, characterized in that: A plurality of protrusions (70) are arranged at intervals on the inner wall of the upper portion of the first inner tube (20). A filter ring (71) is commonly arranged on the plurality of protrusions (70). The filter ring (71) is provided with a plurality of third filter holes (72). The filter ring (71) is provided with two handle plates (73).
3. The municipal garden drainage structure according to claim 1 is characterized by: The rotating shaft (50) is located between the first filter plate (30) and the second filter plate (40), and a plurality of connecting rods (54) are arranged at intervals in the circumferential direction on the rod body. A rotating ring (55) is commonly arranged at one end of the connecting rods (54) away from the rotating shaft (50), and a plurality of inclined plates (56) are arranged at intervals in the circumferential direction on the inner wall of the rotating ring (55).
4. The municipal garden drainage structure according to claim 1, characterized in that: The second outer tube (11) is provided with a tapered tube (13) below the second filter plate (40), and the top opening of the tapered tube (13) is larger than the bottom opening.
5. The municipal garden drainage structure according to claim 1 is characterized by: A plurality of water flow holes (80) are provided at intervals in the circumferential direction at the bottom of the second outer tube (11) and the second inner tube (21).
6. The municipal garden drainage structure according to claim 2, characterized in that: Two handle blocks (14) are provided on the inner wall of the first inner tube (20), a handle groove (15) is provided on the side wall of the handle block (14), and an avoidance groove (74) is provided on the filter ring (71) corresponding to the handle.
7. The municipal garden drainage structure according to claim 5, characterized in that: A first calibration groove (16) is provided at the top of the first outer tube (10), and a second calibration groove (23) is provided at the top of the first inner tube (20).
Citation Information
Patent Citations
Municipal garden drainage structure
CN212772739U