Rainwater collection well for urban drainage

Abstract

The utility model discloses a rainwater collecting well for urban drainage belongs to urban drainage technical field. Its solved the problem that the grate in rainwater collecting well in prior art will influence the drainage capacity of rainwater collecting well when the jam occurs. Its mainly includes well shaft, the top of well shaft is equipped with the apron, is equipped with the water inlet on the apron, and the apron top sets up the well ring on the outside of water inlet, the inner wall of well ring is equipped with the installation step, the installation step is installed with filter assembly, filter assembly includes filter box and the base that is annular, and the base is installed on the installation step, and filter box is in the downside of apron, and the inside of base is connected filter box through a plurality of downwardly extending connecting rods, and filter box includes box bottom plate and the side wall that extends upwards from the box bottom plate perimeter, and a plurality of filter holes are formed on the box bottom plate and the side wall, the installation step still is installed with the well lid, the well lid is stacked on the upside of base, and a plurality of water leakage holes are formed on the well lid.

Description

Technical Field

[0001] This utility model belongs to the field of urban drainage technology, and more specifically, it relates to a rainwater collection well for urban drainage. Background Technology

[0002] Stormwater drainage networks are a key component of urban drainage systems, primarily responsible for collecting surface rainwater (such as road runoff, green space water, and rooftop water catchment) to effectively drain surface water and prevent urban flooding. Stormwater drainage networks typically utilize stormwater collection wells to collect surface rainwater. These wells generally include a well casing, a cover on top of the casing, and drainage connections within the casing.

[0003] To prevent surface debris such as leaves, litter, and silt from directly entering the stormwater drainage system, grates are often installed under the covers of stormwater collection wells. These grates have multiple filter holes that physically filter rainwater as it flows into the collection well, trapping most solid impurities on the grate and reducing siltation and blockage within the stormwater drainage system.

[0004] While storm drain grates are effective at trapping debris, they are prone to clogging due to debris accumulation. This deficiency necessitates frequent manual cleaning, and if not done promptly, it significantly weakens the drainage capacity of the storm drain, leading to surface flooding. Especially during summer downpours, rapid rainwater runoff washes large amounts of debris into the storm drain, further exacerbating the risk of clogging and impacting drainage capacity. Summary of the Invention

[0005] The purpose of this invention is to provide a rainwater collection well for urban drainage, so as to overcome the problem that the drainage capacity of the rainwater collection well is affected when the grates in the existing rainwater collection well become blocked.

[0006] This utility model is achieved using the following technical solution: a rainwater collection well for urban drainage, comprising a well cylinder, a bottom plate at the bottom of the well cylinder, a drain outlet on the well cylinder, and a connecting pipe installed on the drain outlet; a cover plate at the top of the well cylinder, an inlet on the cover plate, a well ring on the outer side of the inlet at the top of the cover plate, an installation step on the inner wall of the well ring, and a filter assembly installed on the installation step; the filter assembly includes a filter box and a ring-shaped base, the base being installed on the installation step, the filter box being below the cover plate, and the inner side of the base being connected to the filter box by multiple downwardly extending connecting rods; the filter box includes a bottom plate and side walls extending upward from the periphery of the bottom plate, both the bottom plate and the side walls having multiple filter holes; a well cover is also installed on the installation step, the well cover being stacked on top of the base, and the well cover having multiple drainage holes.

[0007] Furthermore, a reinforcing rod is installed in the middle of the base.

[0008] Furthermore, the manhole cover has handle grooves on both sides, and through holes at both ends of the handle grooves. A U-shaped handle is installed in the handle groove, and both ends of the handle pass downward through the through holes on both sides of the handle groove. Both ends of the handle are threaded and connected to a baffle.

[0009] Furthermore, the filter box is cylindrical.

[0010] Furthermore, the well shaft is provided with a sedimentation chamber on the lower side of the drainage outlet.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model effectively solves the problem that clogging of current rainwater collection wells severely affects their drainage capacity by replacing the grates with a filter assembly. In application, rainwater and surface debris (leaves, garbage, silt, etc.) enter the well shaft through the drainage holes on the well cover. The rainwater and debris first enter the filter box, and then the rainwater enters through the filter holes on the side walls and bottom plate of the filter box. Inside the well shaft, surface debris accumulates in the filter box, which effectively achieves the filtering effect of the filter box. When too much surface debris accumulates in the filter box and fills it, the surface debris will likely block many of the filter holes on the filter box. However, the rainwater flowing into the filter box can flow from the top of the filter box into the well shaft, that is, from the gap between the filter box and the cover plate into the well shaft, without affecting the drainage capacity of the rainwater collection well. A piece of surface debris that flows out will enter the sedimentation chamber of the well shaft.

[0012] 2. This utility model facilitates the removal and placement of manhole covers and filter components. When it is necessary to remove or place the manhole cover, people can move the manhole cover by using the handles on both sides. When it is necessary to remove or place the filter component, people can lift, move, or lower the filter component vertically by using the reinforcing rod. Attached Figure Description

[0013] Figure 1 This is a partial sectional view of the present invention; Figure 2 This is a perspective view of the present invention; Figure 3 This is a perspective view of the present invention without the manhole cover installed; Figure 4 This is a perspective view of the filter assembly described in this utility model; Figure 5 This is a perspective view of the manhole cover described in this utility model.

[0014] In the diagram: 1. Well shaft; 2. Drain outlet; 3. Connecting pipe; 4. Cover plate; 5. Well ring; 6. Installation step; 7. Filter box; 8. Base; 9. Connecting rod; 10. Box bottom plate; 11. Side wall; 12. Well cover; 13. Leakage hole; 14. Reinforcing rod; 15. Handle groove; 16. Handle; 17. Baffle; 18. Sedimentation chamber; 19. Well bottom plate. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort should fall within the scope of protection of this utility model.

[0016] A rainwater collection well for urban drainage includes a well casing 1, a bottom plate 19 at the bottom of the well casing 1, a drain outlet 2 on the well casing 1, and a connecting pipe 3 installed on the drain outlet 2. A sedimentation chamber 18 is provided below the drain outlet 2 in the well casing 1. The sedimentation chamber 18 is used to deposit surface debris flowing into the sedimentation chamber 18. The area below the drain outlet 2 in the well casing 1 is the sedimentation chamber 18. Figure 1 As shown, the area below the dotted line in the well shaft 1 is the sedimentation chamber 18. The connecting pipe 3 of this invention is connected to the rainwater pipe network of the urban drainage system via a pipeline.

[0017] The top of the well shaft 1 is provided with a cover plate 4, and a water inlet is opened on the cover plate 4. A well ring 5 is provided on the outside of the water inlet on the top of the cover plate 4. The well shaft 1, well bottom plate 19, cover plate 4, connecting pipe 3 and well ring 5 of this utility model can be made of concrete or plastic. The well shaft 1, well bottom plate 19, cover plate 4, connecting pipe 3 and well ring 5 of this utility model can be made into an integral structure. The well shaft 1 and cover plate 4 can also be made into a separate structure. When the well shaft 1 and cover plate 4 are made into a separate structure, the well shaft 1 and cover plate 4 can be connected by a grouting method. The inner diameter of the water inlet of the cover plate 4 of this utility model is smaller than the inner diameter of the well shaft 1. The well ring 5 is connected to the water inlet of the cover plate 4.

[0018] The inner wall of the well ring 5 is provided with an installation step 6, which is used to install the filter assembly and the well cover 12.

[0019] The filter assembly includes a filter box 7 and an annular base 8. The base 8 is mounted on the mounting step 6. The outer diameter of the side wall 11 of the filter box 7 is smaller than the inner diameter of the inlet of the cover plate 4. At the same time, the inner diameter of the base 8 is smaller than the inner diameter of the side wall 11 of the filter box 7. This ensures that the filter box 7 can pass smoothly through the inlet of the cover plate 4, and that all the rainwater flowing in through the manhole cover 12 can flow into the filter box 7.

[0020] The filter box 7 is located below the cover plate 4, and is connected to the inner side of the base 8 by multiple downwardly extending connecting rods 9. The filter box 7 includes a bottom plate 10 and a side wall 11 extending upward from the periphery of the bottom plate 10. Multiple filter holes are provided on both the bottom plate 10 and the side wall 11. In this invention, the side wall 1 is cylindrical, and the entire filter box 7 is cylindrical.

[0021] When this utility model is applied, rainwater and surface debris (leaves, garbage, mud, etc.) in the rainwater enter the well shaft 1 through the drainage hole 13 on the manhole cover 12. The rainwater and surface debris first enter the filter box 7. The rainwater enters the well shaft 1 through the filter holes on the side wall 11 and bottom plate 10 of the filter box 7, while the surface debris accumulates in the filter box 7. This can effectively achieve the filtration effect of the filter box 7. When too much surface debris accumulates in the filter box 7 and fills the filter box 7, the surface debris will likely block many of the filter holes on the filter box 7. However, the rainwater flowing into the filter box 7 can flow from the top of the filter box 7 into the well shaft 1, that is, from the gap between the filter box 7 and the cover plate 4 into the well shaft 1. This will not affect the drainage capacity of the rainwater collection well. A piece of surface debris that flows out will enter the sedimentation chamber 18 of the well shaft 1. This invention effectively solves the problem that blockages in current rainwater collection wells severely affect the drainage capacity of the wells. During normal use, the filter box 7 in the filter assembly needs to be cleaned periodically.

[0022] A manhole cover 12 is also installed on the mounting step 6. The manhole cover 12 is stacked on the upper side of the base 8, and multiple drainage holes 13 are provided on the manhole cover 12. When this utility model is applied, surface rainwater enters the well cylinder 1 through the drainage holes 13 on the manhole cover 12.

[0023] A reinforcing rod 14 is installed in the middle of the base 8. The reinforcing rod 14 of this invention not only provides structural reinforcement to the ring-shaped base 8, but also facilitates the handling of the filter assembly. When it is necessary to handle the filter assembly, it can be lifted, moved, or lowered vertically using the reinforcing rod 14.

[0024] The manhole cover 12 has handle grooves 15 on both sides, and through holes are provided at both ends of the handle grooves 15. A U-shaped handle 16 is installed in the handle grooves 15. The two ends of the handle 16 pass downward through the through holes on both sides of the handle grooves 15, and the two ends of the handle 16 are provided with external threads and threadedly connected to the baffle 17.

[0025] The outer diameter of the retaining ring in this invention is larger than the inner diameter of the through holes on both sides of the handle groove 15. The handle 16 can move up and down along the through holes on both sides. When the handle 16 is not needed, it will fall into the handle groove 15 under the action of gravity. The depth of the handle groove 15 is greater than the outer diameter of the surface of the handle 16. When it is necessary to use the handle 16 to lift the manhole cover 12, people only need to lift the handles 16 on both sides from the handle groove 15. Since the outer diameter of the retaining ring is larger than the inner diameter of the through holes in the handle groove 15, people will also lift the manhole cover 12 when lifting the handle 16. This invention facilitates the movement of the manhole cover 12 by setting handles 16 on both sides.

Claims

1. A rainwater collection well for urban drainage, characterized in that, The well includes a shaft (1), a bottom plate (19) at the bottom of the shaft (1), a drain outlet (2) on the shaft (1), and a connecting pipe (3) installed on the drain outlet (2); a cover plate (4) is provided on the top of the shaft (1), an inlet is provided on the cover plate (4), a well ring (5) is provided on the top of the cover plate (4) outside the inlet, an installation step (6) is provided on the inner wall of the well ring (5), a filter assembly is installed on the installation step (6), the filter assembly includes a filter box (7) and a ring-shaped base (8), and the base (8) is installed with... On the installation step (6), the filter box (7) is located on the underside of the cover plate (4), and the inner side of the base (8) is connected to the filter box (7) by multiple downwardly extending connecting rods (9). The filter box (7) includes a bottom plate (10) and a side wall (11) extending upward from the periphery of the bottom plate (10). Multiple filter holes are provided on both the bottom plate (10) and the side wall (11). A manhole cover (12) is also installed on the installation step (6). The manhole cover (12) is stacked on the upper side of the base (8), and multiple water leakage holes (13) are provided on the manhole cover (12).

2. The rainwater collection well for urban drainage according to claim 1, characterized in that, A reinforcing rod (14) is installed in the middle of the base (8).

3. The rainwater collection well for urban drainage according to claim 1, characterized in that, The manhole cover (12) has handle grooves (15) on both sides, and through holes are provided at both ends of the handle grooves (15). A U-shaped handle (16) is installed in the handle grooves (15). The two ends of the handle (16) pass downward through the through holes on both sides of the handle grooves (15), and the two ends of the handle (16) are provided with external threads and threadedly connected to baffles (17).

4. The rainwater collection well for urban drainage according to claim 1, characterized in that, The filter box (7) is cylindrical.

5. A rainwater collection well for urban drainage according to any one of claims 1-4, characterized in that, The well shaft (1) has a sedimentation chamber (18) on the lower side of the drainage outlet (2).

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