Low-carbon sponge city park rainwater storage structure

Abstract

The utility model belongs to sponge city park field especially, it is low carbon type sponge city park rainwater regulation and storage structure, aiming at the problem that the well lid and the well seat gap of the existing traditional rainwater regulation and storage structure are easy to enter impurities and cause opening difficulty, the following scheme is presented, it includes rainwater well, rain well lid, well lid main part has water inlet, well seat sets up and places filter basket, still has filter to carry out secondary filtration. The shelter is composed of fixing ring and insert ring, the well lid main part and the well seat form relative sealing structure, reduce the impurity and enter the gap. The well seat top is equipped with the fixed strip of annular array, makes the whole more beautiful and not easy to stumble. The structure can realize rainwater double filtration, improve purification effect, realize rainwater recycling, improve water resource utilization rate. At the same time, the shelter avoids impurity accumulation, facilitates well lid opening, improves work efficiency, reduces maintenance cost, reduces well lid and well seat damage. Regularly clean filter basket and filter, can guarantee normal operation and filtration effect.

Description

Technical Field

[0001] This utility model relates to the field of sponge city park technology, and in particular to a low-carbon rainwater storage structure for sponge city parks. Background Technology

[0002] Low-carbon sponge city parks refer to a series of specialized facilities carefully planned and constructed within park green spaces. These facilities constitute a complete rainwater management system designed to efficiently collect, store, purify, and utilize rainwater runoff. When rainwater falls onto the road surface, it quickly forms runoff. This roadside rainwater flows into storm drains along pre-designed paths. As the initial link in the entire rainwater storage structure, the storm drains play a crucial role in collecting rainwater. Subsequently, through pipes connecting the storm drains, the rainwater is systematically transported to other locations. These locations include various storage facilities such as underground reservoirs, rain gardens, and vegetated swales. Underground reservoirs can store large amounts of rainwater, providing a stable water source for park irrigation and landscape water replenishment during drought periods, thereby reducing dependence on municipal water supply, achieving water resource recycling, and embodying the low-carbon concept. Rain gardens and vegetated swales not only store rainwater, but also purify it naturally through plant absorption, soil filtration, and microbial degradation, removing impurities, pollutants, and harmful substances. The purified rainwater can then be reused in the park's ecosystem or slowly infiltrate into the ground to replenish groundwater and promote the healthy operation of the urban water cycle.

[0003] However, in traditional rainwater storage structures, rainwater wells are usually covered with manhole covers. A manhole cover generally consists of two parts: the cover body and the base. While this design ensures the safety and functionality of the rainwater well to a certain extent, it also presents some problems that cannot be ignored. When the cover body is placed on the base, due to limitations in manufacturing processes and installation precision, a certain gap inevitably exists between the two. During the daily operation of the city, these gaps become channels for dust, debris, and other contaminants to enter the rainwater well. Especially in areas with high road dust and cluttered surroundings, over a long period, a large amount of dust, leaves, plastic fragments, and other impurities accumulate in the gaps. The continuous accumulation of these impurities leads to significant resistance when the cover body needs to be opened for maintenance, cleaning, or other operations. The presence of impurities increases the friction between the cover body and the base, making it difficult for workers to open the cover body smoothly. Sometimes, specialized tools are even required, consuming a lot of manpower and time. This not only affects work efficiency but may also damage the cover and base, further increasing maintenance costs. Utility Model Content

[0004] The purpose of this invention is to address the problem in existing rainwater storage structures where rainwater wells are typically covered with manhole covers. These covers generally consist of a cover body and a base. While this design ensures the safety and functionality of the rainwater well to a certain extent, it also presents some significant problems. When the cover body is placed on the base, due to limitations in manufacturing processes and installation precision, gaps inevitably exist between the two. During daily urban operations, these gaps become channels for dust and debris to enter the rainwater well. Especially in areas with high levels of road dust and cluttered surroundings, over time, a large amount of dust, leaves, plastic fragments, and other impurities accumulate in the gaps. This accumulation of impurities creates significant resistance when the cover body needs to be opened for maintenance, cleaning, or other operations. The presence of these impurities increases the friction between the cover body and the base, making it difficult for workers to open the cover body smoothly. Sometimes, specialized tools are needed, which consumes a lot of manpower and time. This not only affects work efficiency but may also damage the manhole cover and frame, further increasing maintenance costs. Therefore, a low-carbon sponge city park rainwater storage structure is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A low-carbon sponge city park rainwater storage structure includes a rainwater well and a rainwater well cover located at the top of the rainwater well. A drainage pipe is fixedly installed on one side of the bottom of the rainwater well and connected to it. The rainwater well cover includes a cover body and a base. The bottom end of the base is inserted into the rainwater well. The cover body has a water inlet hole, and the base has a placement groove. A filter basket for intercepting debris is placed in the placement groove. The filter basket has filter holes. The cover body is placed in the placement groove and is located above the filter basket. The cover body is equipped with a shield to reduce the entry of impurities into the gap between the cover body and the base.

[0007] To improve filtration efficiency, a filter is also included, which can further filter impurities from rainwater.

[0008] In one possible design, the shield includes a fixing ring and a insert ring. The fixing ring is fixedly sleeved on the manhole cover body, and the bottom end of the fixing ring is provided with a slot. The bottom end of the insert ring is welded to the top of the manhole base, and the insert ring is inserted into the slot.

[0009] In one possible design, the filter includes a filter bag, a connecting ring, and a mounting ring, wherein the top end of the filter bag is fixedly connected to the bottom end of the connecting ring, the top end of the mounting ring is fixedly connected to the bottom of the filter basket, and the connecting ring and the mounting ring are connected by a connecting part.

[0010] In one possible design, the connection includes an external thread and a mating internal thread, the external thread being formed on the surface of the mounting ring, and the internal thread being formed on the inner wall of the connecting ring.

[0011] In one possible design, the top of the well base is welded with multiple fixing strips arranged in a circular array.

[0012] In one possible design, the top of the fixing strip is parallel to the top of the manhole cover body.

[0013] In this application, when rainfall occurs, rainwater falls on the park's roads and surrounding areas, forming surface runoff under gravity. This rainwater naturally flows towards the location of the storm drain. The rainwater flows into the storm drain through inlets on the drain cover. During the flow, it first passes through a filter basket placed in a slot within the drain base. The filter holes in the basket remove larger debris, such as leaves and particles, leaving them in the basket. The cleaner rainwater continues to fall through the filter holes. The rainwater, initially filtered by the basket, continues to fall to the filter, where it enters... After the filter bag, the rainwater undergoes secondary filtration, further removing fine impurities and suspended solids, resulting in more thorough purification. The filter bag can be made of nylon, and its mesh size is smaller than that of the filter basket. After two filtrations, the rainwater is stored in the rainwater well and discharged through a drain pipe connected to one side of the bottom of the well. It can be used for greening irrigation and landscape water replenishment in parks, achieving rainwater recycling. The fixing ring is fixedly fitted onto the main body of the well cover by a set shield, and a slot is opened at the bottom of the ring. The bottom of the ring is welded to the top of the well base, and the ring is inserted into the slot. This design creates a relatively sealed structure between the manhole cover and the manhole base. During daily use, dust, pebbles, and other impurities on the road surface are easily moved towards the storm drain by wind and water flow. Due to the presence of the shield, these impurities have difficulty entering the gap between the manhole cover and the manhole base, thus avoiding the problem of difficulty in opening the manhole cover due to the accumulation of impurities. This ensures the normal use of the storm drain cover and the stable operation of the storm water storage structure. The fixing strips ensure that the manhole cover does not exceed the top of the manhole base, making the overall appearance more aesthetically pleasing and less likely to cause tripping. The number, spacing, and density of the fixing strips can be selected according to actual needs. The filter basket has a handle fixed inside for easy removal.

[0014] The filter basket needs to be cleaned regularly (such as weekly or monthly, depending on the actual situation of the park and the frequency of rainfall). Open the main body of the manhole cover, take the filter basket out of the placement slot, pour out the larger debris trapped inside, and then rinse the filter basket with clean water to remove any remaining fine impurities, ensuring that the filter holes of the filter basket are unobstructed and guaranteeing its filtration effect.

[0015] Filters also require regular inspection and maintenance. When the filter bag is found to be severely clogged or the filtration effect is significantly reduced, it needs to be cleaned or replaced. Since the connecting ring and the mounting ring are connected by threads, disassembly and installation are relatively convenient. When cleaning, the filter bag can be removed from the mounting ring and rinsed with clean water or cleaned with a suitable cleaning agent. After the filter bag is dry, it can be reinstalled. If the filter bag is damaged and cannot be used, replace it with a new filter bag directly.

[0016] The beneficial effects of this utility model are as follows:

[0017] The rainwater undergoes a dual filtration process using a filter basket and a filter. The filter basket traps larger debris such as leaves and particles, providing initial purification. The filter bag in the filter further removes finer impurities and suspended solids, and its mesh size is smaller than that of the filter basket, ensuring more thorough purification. The clean rainwater, after these two filtrations, is stored in a storm drain and can be used for irrigation of park greenery and landscape water replenishment through drainage pipes, achieving effective rainwater recycling and improving water resource utilization efficiency.

[0018] The manhole cover, consisting of a fixed ring and a insert ring, is secured to the main body of the manhole cover. The insert ring is inserted into a slot at the bottom of the fixed ring, creating a relatively sealed structure between the manhole cover and the base. This design effectively reduces the entry of dust, small stones, and other impurities into the gaps, preventing difficulties in opening the manhole cover due to impurity accumulation. Workers can easily open the manhole cover for inspection and cleaning without the need for special tools, improving work efficiency, reducing maintenance costs, and minimizing damage to the manhole cover and base caused by forced opening. Attached Figure Description

[0019] Figure 1 This is a partially exploded view of a low-carbon rainwater storage structure for sponge city parks proposed in this utility model.

[0020] Figure 2 This is a partial cross-sectional view of a rainwater storage structure for a low-carbon sponge city park proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the well seat and rainwater well in a separated state of a rainwater storage structure for a low-carbon sponge city park proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of the main structure of a low-carbon sponge city park rainwater storage structure proposed in this utility model.

[0023] In the diagram: 1. Rainwater well; 2. Well cover body; 3. Well base; 4. Fixing strip; 5. Fixing ring; 6. Insert ring; 7. Filter basket; 8. Mounting ring; 9. Filter bag; 10. Connecting ring; 11. Internal thread; 12. Placement groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In one embodiment: Refer to Figure 1-4 A rainwater storage structure includes: a rainwater well 1, which is the core component of the entire rainwater storage structure. It is typically constructed of cast concrete, possessing sufficient strength and stability to withstand the pressure of the park ground and the weight of rainwater. The shape of the rainwater well 1 can be designed as cylindrical, square, etc., according to actual needs; this embodiment uses a cylindrical shape as an example. Its depth and diameter are rationally designed based on factors such as the park's rainfall and catchment area to ensure sufficient rainwater storage.

[0026] A drain pipe is fixedly installed on one side of the bottom of the rainwater well 1, and the drain pipe is connected to the rainwater well 1. The drain pipe is generally made of plastic or steel, and has a certain degree of corrosion resistance and water tightness. The diameter of the drain pipe is selected according to the rainwater discharge volume, and its outlet can be connected to the park's greening irrigation system, landscape water replenishment system or other rainwater utilization facilities to realize the recycling of rainwater.

[0027] The manhole cover includes a cover body 2 and a base 3. The bottom end of the base 3 is inserted into the rainwater well 1. The joint between the base 3 and the rainwater well 1 can be sealed with a sealing material to prevent rainwater leakage. A placement groove 12 is provided on the base 3. The shape and size of the placement groove 12 are adapted to the filter basket 7 for placing the filter basket 7.

[0028] The manhole cover body 2 has water inlet holes. The shape and size of the water inlet holes can be designed according to actual needs, such as round or square. The distribution of the water inlet holes should be even and reasonable to ensure that rainwater can flow smoothly into the rainwater well 1. The manhole cover body 2 is placed in the placement groove 12 and located above the filter basket 7, serving to cover and protect the rainwater well 1.

[0029] The filter basket 7 is placed in the placement slot 12 of the well base 3 to perform preliminary filtration of rainwater entering the rainwater well 1, intercepting larger debris such as leaves and particles. The filter basket 7 has filter holes, the size of which is designed according to the size of the debris to be intercepted, generally with a diameter of 5-20mm. The filter basket 7 can be made of stainless steel, plastic, etc., possessing a certain degree of strength and corrosion resistance.

[0030] To facilitate the removal and cleaning of the filter basket 7, a handle is fixed to the inside of the filter basket 7. The handle can be made of the same material as the filter basket 7 and can be fixed to the filter basket 7 by welding or bolting.

[0031] The manhole cover is designed to reduce the amount of debris entering the gap between the manhole cover body 2 and the manhole base 3, solving the problem of difficulty in opening traditional manhole covers due to debris accumulation. The manhole cover includes a fixing ring 5 and an insert ring 6. The fixing ring 5 is fixedly fitted onto the manhole cover body 2, and can be secured by welding or bolting. A slot is provided at the bottom of the fixing ring 5, the shape and size of which are adapted to the insert ring 6. The bottom end of the insert ring 6 is welded to the top of the manhole base 3, and the insert ring 6 is inserted into the slot at the bottom of the fixing ring 5. This design creates a relatively sealed structure between the manhole cover body 2 and the manhole base 3, making it difficult for dust, small stones, and other debris from the road surface to enter the gap between the manhole cover body 2 and the manhole base 3 during daily use, due to wind and water flow.

[0032] The filter is used for secondary filtration of rainwater that has undergone preliminary filtration by the filter basket 7, further removing fine impurities and suspended solids from the rainwater and improving the purification effect. The filter includes a filter bag 9, a connecting ring 10, and an mounting ring 8. The filter bag 9 can be made of nylon, polyester fiber, etc., depending on actual needs, and has a certain filtration accuracy and strength. The top end of the filter bag 9 is fixedly connected to the bottom end of the connecting ring 10, which can be done by sewing or heat fusion.

[0033] The top of the mounting ring 8 is fixedly connected to the bottom of the filter basket 7, which can also be fixed by welding or bolting. The connecting ring 10 and the mounting ring 8 are connected by a connecting part, which in this embodiment includes an external thread and a mating internal thread 11. The external thread is formed on the surface of the mounting ring 8, and the internal thread 11 is formed on the inner wall of the connecting ring 10. The threaded connection makes it easier to disassemble and install the filter bag 9, and facilitates cleaning or replacement of the filter bag 9.

[0034] This application is for the field of sponge city parks, but can also be used in other fields applicable to this application.

[0035] In another embodiment: Reference Figure 1-4 A low-carbon rainwater storage structure for sponge city parks, which is applied in the field of sponge city parks.

[0036] Multiple fixing strips 4 are welded to the top of the manhole base 3, arranged in a circular array. The number, spacing, and density of the fixing strips 4 can be selected according to actual needs. The top of the fixing strips 4 is parallel to the top of the manhole cover body 2, making the overall structure more aesthetically pleasing and less likely to trip pedestrians. The fixing strips 4 can be made of the same material as the manhole base 3 and are fixed by welding.

[0037] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low-carbon sponge city park rainwater storage structure, characterized in that, The utility model relates to a rainwater well (1) and rain well lid at the top of rainwater well (1), the bottom end side of rainwater well (1) is fixedly provided with drain pipe and is connected, and the rain well lid includes well lid main part (2) and well seat (3), the bottom end of well seat (3) is inserted and connected with rainwater well (1), the well lid main part (2) is provided with water inlet hole, the well seat (3) is provided with the placement groove (12), the placement groove (12) is placed with the filter basket (7) for intercepting sundries, the filter basket (7) is provided with filter hole, the well lid main part (2) is placed in the placement groove (12) and is located above the filter basket (7), the well lid main part (2) is equipped with the shelter, and the shelter can reduce the impurity into the gap between well lid main part (2) and well seat (3). In order to improve the filtering effect, the filter is further included, and the rainwater can be filtered twice by the filter. 2.The low-carbon sponge city park rainwater storage structure of claim 1, wherein The shelter includes a fixed ring (5) and an insertion ring (6), the fixed ring (5) is fixedly sleeved on the well lid main part (2), a insertion slot is formed in the bottom end of the fixed ring (5), the bottom end of the insertion ring (6) is welded to the top of the well seat (3), and the insertion ring (6) is inserted into the insertion slot.

3. The low-carbon sponge city park rainwater storage structure according to claim 1, characterized in that, The filter includes a filter bag (9), a connecting ring (10) and a mounting ring (8), the top end of the filter bag (9) is fixedly connected to the bottom end of the connecting ring (10), the top of the mounting ring (8) is fixedly connected to the bottom of the filter basket (7), and the connecting ring (10) and the mounting ring (8) are connected through a connecting portion.

4. The low-carbon sponge city park rainwater storage structure according to claim 3, characterized in that, The connecting portion includes external threads and mating internal threads (11), the external threads are formed on the surface of the mounting ring (8), and the internal threads (11) are formed on the inner wall of the connecting ring (10). 5.The low-carbon sponge city park rainwater storage structure of claim 1, wherein, A plurality of fixed strips (4) are welded to the top of the well seat (3), and the fixed strips (4) are arranged in an annular array. 6.The low-carbon sponge city park rainwater storage structure of claim 5, wherein, The top of the fixed strip (4) is parallel to the top of the well lid main part (2).

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