Overflow well
By designing an overflow well, the rain garden is integrated with the well body, well cover, rainwater pipe and perforated pipe, which solves the problem of insufficient water infiltration capacity of the rain garden during heavy rainfall, realizes effective infiltration and collection of rainwater, reduces surface water, and enables the reuse of rainwater.
Patent Information
- Application Number
- CN202323072775.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-13
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2033-11-13
AI Technical Summary
Existing rain gardens have limited infiltration capacity during heavy rainfall, causing rainwater to overflow onto the road surface, resulting in water waste and difficulties in treating surface water.
Design an overflow well, including a well body, a well cover, a rainwater pipe, and a perforated pipe. The well body passes through each layer of the rain garden, the well cover has a water inlet, the rainwater pipe is connected to the rainwater well, and the perforated pipe is connected to the gravel layer to realize rainwater infiltration and collection.
During heavy rainfall, rainwater can be temporarily stored in the aquifer and seep into the ground. It can then enter the rainwater well through the well body and rainwater pipes, enabling the reuse and timely discharge of rainwater and reducing surface water accumulation.
Smart Images
Figure CN223593523U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of overflow well, in particular to an overflow well. BACKGROUND
[0002] In recent years, the urbanization construction develops rapidly, the green area in the city decreases, which leads to that the city can only rely on the municipal pipe network drainage when facing heavy rainfall, and a significant heat island effect appears. Therefore, the concept of sponge city is proposed. The sponge city refers to the city which has flexibility in adapting to the environment and coping with natural disasters, absorbs, stores, permeates and purifies water when it rains, and releases and utilizes the stored water when needed.
[0003] The rainwater garden is a common sponge city setting, and the overflow well is a practical device matched with the rainwater garden. The overflow well can quickly, conveniently and safely permeate rainwater to the underground, fully replenish the underground water, and effectively avoid the phenomenon of ground waterlogging and urban waterlogging.
[0004] REFERENCE Figure 1 At present, there is a rainwater garden which comprises, from top to bottom, a water storage layer, a covering layer, a replacement layer, a gravel layer and a plain soil backfill layer. The water storage layer can temporarily store rainwater, and the rainwater slowly permeates into the underground and accumulates in the covering layer, the replacement layer and the gravel layer.
[0005] However, the water permeability of the rainwater garden is limited, and when heavy rainfall occurs, the rainwater cannot be permeated in time and will overflow to the road surface, causing waste of water resources and trouble in processing the road waterlogging. Therefore, an overflow well matched with the rainwater garden is needed. CONTENT OF THE INVENTION
[0006] In order to permeate rainwater into the underground in time and reduce ground waterlogging, the present application provides an overflow well.
[0007] The overflow well provided by the present application adopts the following technical scheme:
[0008] An overflow well comprises:
[0009] a well body which sequentially penetrates, from top to bottom, a water storage layer, a covering layer, a replacement layer and a gravel layer of a rainwater garden;
[0010] a well cover which covers an upper end well mouth of the well body and is provided with a plurality of water inlets;
[0011] a rainwater pipe which is connected to a side wall of the well body, is located in the gravel layer of the rainwater garden, and has an end away from the well body connected to a rainwater well;
[0012] a perforated pipe which is buried in the gravel layer of the rainwater garden and is connected to the side wall of the well body.
[0013] By adopting the technical scheme, when heavy rain occurs, rainwater can be temporarily stored in the water storage layer, and penetrates downward into the water storage layer and reaches the gravel layer after being absorbed and filtered by the replacement layer, and rainwater enters the well body from the water inlet of the well cover, and when the rainwater reaches a certain water level, the rainwater enters the rainwater well through the rainwater pipe, realizing the reuse of rainwater, and rainwater in the gravel layer can also enter the well body through the perforated pipe, realizing drainage. Therefore, by matching the overflow well and the rainwater garden, rainwater can be quickly infiltrated into the ground, realizing the accumulation, collection and discharge of rainwater.
[0014] Preferably, the upper end of the well body is provided with a mounting seat, the mounting seat is provided with a placing table, the side wall of the mounting seat is fixedly connected with a gasket, and one side of the well cover is hingedly connected with the mounting seat.
[0015] By adopting the technical scheme, the opening of the well cover is facilitated by the hinged mode, and the sealing between the mounting seat and the well cover is enhanced by the gasket.
[0016] Preferably, the placing table is provided with a slot, the upper part of the well body is provided with a sewage interception basket, the side wall of the sewage interception basket is connected with a connecting plate, the connecting plate is connected with a plug-in plate, and the plug-in plate is plugged into the slot.
[0017] By adopting the technical scheme, the rainwater can be filtered by the sewage interception basket, and the sewage interception basket is conveniently taken out by the plug-in mode of the plug-in plate and the slot, and the filtered garbage is conveniently cleaned.
[0018] Preferably, the bottom end of the well body is fixedly arranged in the plain soil backfill layer, and the upper end of the well body is higher than the height of the water storage layer.
[0019] By adopting the technical scheme, the upper end of the well body is arranged to be higher than the height of the water storage layer, so that rainwater backflow can be prevented.
[0020] Preferably, the perforated pipe is a spiral corrugated pipe, one side of the perforated pipe close to the gravel layer is connected with a plug, and a plurality of water holes are formed in the side wall of the perforated pipe.
[0021] By adopting the technical scheme, the plug plays a sealing role, the water holes allow rainwater in the gravel layer to enter, and the rainwater enters the well body through the perforated pipe.
[0022] Preferably, the side wall of the perforated pipe is wrapped with non-woven fabric.
[0023] By adopting the technical scheme, the non-woven fabric can filter the rainwater to be entered into the perforated pipe, reducing impurities.
[0024] Preferably, the bottom of the well body is provided with a C15 concrete base layer, and a C15 fine stone concrete is further provided above the C15 concrete base layer, and the inner wall of the well body is provided with a cement mortar finishing layer.
[0025] By adopting the above technical scheme, the well body and the plain soil backfill layer are fixed through the C15 concrete base layer, the C15 fine stone concrete conveniently precipitates impurities in rainwater, so that the impurities are precipitated at the bottom of the well body, and the cement mortar finishing layer enhances the strength of the well body.
[0026] Preferably, the well cover is a circular cast iron overflow port special for sponge city.
[0027] By adopting the above technical scheme, the well cover can preliminarily filter rainwater and isolate branches and garbage from entering the well body.
[0028] In summary, the present application has at least one of the following beneficial technical effects:
[0029] 1. When heavy rain occurs, rainwater can be temporarily stored in the water storage layer and infiltrate downward, reaches the gravel layer after being absorbed and filtered by the replacement layer of plants, and enters the well body through the water inlet of the well cover. When the rainwater reaches a certain water level, it enters the rainwater well through the rainwater pipe, realizes the reuse of rainwater, and the rainwater in the gravel layer can also enter the well body through the perforated pipe, realizing drainage. Therefore, by matching the overflow well and the rainwater garden, rainwater can be infiltrated into the ground in time, realizing the accumulation, collection and discharge of rainwater.
[0030] 2. The rainwater can be filtered through the setting of the sewage interception basket, and the sewage interception basket can be conveniently taken out through the setting of the way that the scraper hook and the hook are hooked with each other, facilitating the cleaning of the filtered garbage. BRIEF DESCRIPTION OF DRAWINGS
[0031] Figure 1 is a structural schematic view of a rainwater garden of an embodiment of the present application;
[0032] Figure 2 is a structural schematic view of the whole of an embodiment of the present application;
[0033] Figure 3 is an enlarged view of A in the present application; Figure 2
[0034] Figure 4 is a structural schematic view of a perforated pipe of the present application;
[0035] Figure 5 is a connection schematic view of the perforated pipe and the joint of the present application.
[0036] Explanation of reference numerals in the attached drawings: 1. Rain garden; 11. Water storage layer; 12. Cover layer; 13. Replacement layer; 14. Crushed stone layer; 15. Geotextile layer; 2. Well body; 21. Cement mortar finishing layer; 3. Well cover; 31. Inlet; 4. Rainwater pipe; 5. Perforated pipe; 51. Joint; 52. Water passage hole; 53. Non-woven fabric; 6. Mounting base; 61. Placement platform; 62. Washer; 7. Sewage interception basket; 71. Connecting plate; 72. Insert plate; 73. Slot; 8. C15 concrete foundation layer; 81. C15 fine stone concrete; 82. Plain soil backfill layer. Detailed Implementation
[0037] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.
[0038] like Figure 1 As shown, a rain garden 1 includes a pool body with impermeable geotextile lining its slopes. Inside the pool body, from bottom to top, are laid a gravel layer 14, a replacement layer 13, a cover layer 12, and a water storage layer 11. The gravel layer 14 includes gravel layers with a particle size of 30-50mm and gravel layers with a particle size of 5-10mm, with the 5-10mm gravel layer located on top. The gravel helps purify and drain rainwater. The replacement layer 13 can be made of sand, gravel, or lime-soil, forming a good artificial foundation and allowing for the planting of ornamental flowers and grasses. The cover layer 12 uses expanded clay or steel slag to reduce shallow gullies and soil loss caused by rainwater erosion. The water storage layer 11 is used to temporarily store rainwater, which can then slowly infiltrate into the ground. The pool body is covered with a geotextile layer 15, which is configured as two layers of fabric and one layer of membrane to prevent seepage. Similarly, a seepage-proof geotextile layer 15 is also laid between the crushed stone layer 14 and the replacement layer 13, which simultaneously filters impurities in the rainwater and reduces the amount of soluble substances entering the crushed stone layer 14.
[0039] Rain garden 1 is located outside the basement roof slab, which is covered with a plain soil backfill layer 82. The plain soil backfill layer 82 consists of, from top to bottom, 95% compacted plain soil, a cement and stone chip cushion layer, a crushed stone base layer, and a colored permeable concrete layer. Rain garden 1 is located above the plain soil backfill layer 82.
[0040] This application discloses an overflow well for use with the aforementioned rain garden 1, thereby allowing rainwater to infiltrate into the ground in a timely manner. Figure 2 As shown, an overflow well includes a well body 2, which is vertically arranged and positioned above a plain soil backfill layer 82. A well cover 3 for covering the well opening is provided at the upper end of the well body 2, and a sewage interception basket 7 is provided below the well cover 3. A rainwater pipe 4 and a perforated pipe 5 are also connected inside the well body 2.
[0041] The well body 2 is laid on the C15 concrete foundation layer 8, and the well body 2 is fixed above the soil backfill layer 82 through the C15 concrete foundation layer 8. The bottom surface inside the well body 2 is laid with the C15 fine stone concrete 81, and the C15 fine stone concrete 81 is located above the C15 concrete foundation layer 8. When the rainwater falls along the well body 2, the C15 fine stone concrete 81 is beneficial to the rainwater buffer falling, and the garbage impurities carried by the rainwater can be deposited on the C15 fine stone concrete 81.
[0042] The inner wall of the well body 2 is provided with a cement mortar finishing layer 21, which can enhance the strength of the well body 2. The well body 2 sequentially passes through the gravel layer 14, the replacement layer 13, the covering layer 12 and the water storage layer 11 from bottom to top, and the upper end of the well body 2 is higher than the height of the horizontal plane of the water storage layer 11, thereby preventing the phenomenon of rainwater backflow.
[0043] As shown in Figure 2 and Figure 3 , the upper end of the well body 2 is connected with the mounting seat 6, the inside of the mounting seat 6 is provided with a placing table 61, the placing table 61 and the mounting seat 6 form a stepped shape, the placing table 61 is fixedly connected with a gasket 62 which is consistent with the shape of the well cover 3, the well cover 3 abuts against the gasket 62, and the sealing effect between the mounting seat 6 and the well cover 3 is improved through the gasket 62. One side of the well cover 3 is hinged to the mounting seat 6, which facilitates the opening of the well cover 3, and the hinged fixing makes the connection between the well cover 3 and the well body 2 more stable.
[0044] The well cover 3 is selected as a circular sponge city special cast iron overflow port, and the well cover 3 as a whole is a hemispherical surface, so the height of the well cover 3 protrudes from the mounting seat 6. The height of the well cover 3 increases the water level height of the rainwater entering the overflow well, and at the same time, the low water level can be temporarily accumulated in the water storage layer 11 and infiltrated into the ground. A plurality of strip-shaped water inlets 31 are formed in the well cover 3, through which the rainwater enters the well body 2, and the well cover 3 can preliminarily filter garbage, leaves and the like.
[0045] The sewage hanging basket 7 is arranged as a rectangular frame with the side inclined outward, and the connecting plate 71 is connected to the side wall of the sewage hanging basket 7, the connecting plate 71 extends to the placing table 61, the connecting plate 71 is connected with the plug plate 72, the placing table 61 is provided with the plug groove 73, and the plug plate 72 is inserted into the plug groove 73. By inserting the plug plate 72 into the plug groove 73, the sewage hanging basket 7 is fixed, and the sewage hanging basket 7 is conveniently taken out. The sewage hanging basket 7 plays a role of secondary filtration, and the impurities in the rainwater will be further filtered in the sewage hanging basket 7. By taking out the sewage hanging basket 7, the impurities can be cleaned.
[0046] The rainwater pipe 4 is communicated with the side wall of the well body 2, and is located in the gravel layer 14 of the rainwater garden 1. When the water level in the well body 2 is raised, rainwater can flow along the rainwater pipe 4. The end of the rainwater pipe 4 away from the well body 2 is communicated with the rainwater well, so that rainwater can be stored in the rainwater well through the rainwater pipe 4, and rainwater can be discharged and reused.
[0047] As shown in Figure 4 and Figure 5 The perforated pipe 5 is communicated with the side wall of the well body 2, and is buried in the gravel layer 14 of the rainwater garden 1. The perforated pipe 5 is made of an inner-rib reinforced polyethylene spiral corrugated pipe. A plug is connected to the side of the perforated pipe 5 close to the gravel layer 14. The plug is made of an inner-rib reinforced polyethylene spiral corrugated pipe plug, and the plug seals the end of the perforated pipe 5 close to the gravel layer 14. A plurality of water holes 52 are formed in the perforated pipe 5, so that rainwater in the gravel layer 14 can enter the perforated pipe 5 through the water holes 52. The side wall of the perforated pipe 5 is further wrapped with a non-woven fabric 53. The non-woven fabric 53 can filter rainwater in the gravel layer 14 entering the perforated pipe 5, so that rainwater in the gravel layer 14 is filtered by the non-woven fabric 53 and enters the perforated pipe 5 through the water holes 52, and then flows into the well body 2 along the perforated pipe 5, and then flows back to the rainwater well through the rainwater pipe 4 when the water level is raised.
[0048] The implementation principle of the overflow well is as follows: when heavy rain occurs, rainwater falls into the rainwater garden 1, and is temporarily stored in the water storage layer 11 and gradually penetrates into the gravel layer 14 through the water storage layer 11. When the water level of the rainwater reaches the well cover 3, the rainwater enters the well body 2 through the water inlet 31 of the well cover 3, and is filtered by the trash basket 7. Rainwater in the gravel layer 14 is filtered by the non-woven fabric 53 and enters the perforated pipe 5 through the water holes 52, and then flows into the well body 2 along the perforated pipe 5. When the water level in the well body 2 is raised, rainwater flows into the rainwater well along the rainwater pipe 4, so that rainwater can be recycled and reused.
[0049] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent changes made according to the structure, shape and principle of the present application should be covered by the protection scope of the present application.
Claims
1. An overflow well, characterized in that, Include: Well body (2), the well body (2) sequentially passes through the water storage layer (11), the cover layer (12), the replacement layer (13) and the gravel layer (14) of rain garden (1) from top to bottom; Well lid (3) for covering the upper end well mouth of the well body (2), the well lid (3) is provided with a plurality of water inlets (31); Rainwater pipe (4) is communicated with the side wall of the well body (2), located in the gravel layer (14) of rain garden (1), and the rainwater pipe (4) is communicated with the rainwater well at the end away from the well body (2); Perforated pipe (5) is buried in the gravel layer (14) of rain garden (1), and is communicated with the side wall of the well body (2); The upper end of the well body (2) is provided with a mounting seat (6), the mounting seat (6) is provided with a placing table (61), the placing table (61) is provided with a slot (73), the upper part of the well body (2) is provided with a sewage hanging basket (7), the side wall of the sewage hanging basket (7) is connected with a connecting plate (71), the connecting plate (71) is connected with a plug-in plate (72), the plug-in plate (72) is inserted into the slot (73).
2. An overflow well according to claim 1, characterized in that: The side wall of the mounting seat (6) is fixedly connected with a gasket (62), one side of the well lid (3) is hinged to the mounting seat (6).
3. An overflow well according to claim 1, characterized in that: The bottom end of the well body (2) is fixedly arranged in the plain soil backfill layer (82), and the upper end of the well body (2) is higher than the height of the water storage layer (11).
4. An overflow well according to claim 1, characterized in that: The perforated pipe (5) adopts spiral corrugated pipe, one side of the perforated pipe (5) close to the gravel layer (14) is connected with a plug, and a plurality of water holes (52) are formed in the side wall of the perforated pipe (5).
5. An overflow well according to claim 4, wherein: The side wall of the perforated pipe (5) is wrapped with non-woven fabric (53).
6. An overflow well according to claim 3, wherein: The bottom of the well body (2) is provided with a C15 concrete foundation layer (8), and a C15 fine stone concrete (81) is further arranged above the C15 concrete foundation layer (8), and the inner wall of the well body (2) is provided with a cement mortar finishing layer (21).
7. An overflow well according to claim 1, characterized in that: The well lid (3) is selected from a circular sponge city special cast iron overflow port.