Sponge type water-retaining green belt

Abstract

The utility model discloses a kind of sponge type water-retaining green belts, including green belt body, water-retaining device is arranged in the inside of green belt body, water-retaining device includes band body, the side surface of band body is fixedly connected with rainwater inlet, the inside one side of rainwater inlet is fixedly connected with storage pipe, the inside other side of rainwater inlet is fixedly connected with drain pipe, the inside of band body is fixedly connected with flower assembly groove, the inside of band body is provided with peat, the inside of band body is fixedly connected with water seepage, the inside of rainwater inlet is provided with anti-blocking device.In the utility model, sponge type water-retaining green belt is constructed around four-dimensional integrated system of drainage, water storage, landscape and livelihood, relies on key components collaborative operation and standard construction process to realize rainwater efficient management, can prevent rainwater backflow, and can also guide the excess irrigation water of plant into lower peat layer through side wall flow guide groove.

Description

Technical Field

[0001] This utility model relates to the field of green belts, and in particular to a sponge-type water-retaining green belt. Background Technology

[0002] Existing urban greenbelts primarily utilize shallow-rooted plants such as herbaceous flowers and shrubs, lacking deep-rooted trees like camphor and sycamore, resulting in unutilized deep soil water storage capacity. Through a three-dimensional transformation involving physical connectivity, ecological enhancement, and technological empowerment, greenbelts can be upgraded into urban sponge units with landscape, ecological, and water conservancy functions. This not only improves rainwater resource utilization but also reduces the load on municipal pipe networks, providing a low-cost, sustainable ecological solution to urban water problems.

[0003] With the acceleration of urbanization, traditional drainage systems rely on pre-installed pipes, which have limited processing capacity and are prone to flooding during heavy rainfall. Furthermore, direct discharge of rainwater leads to water waste. The concept of "sponge cities" has emerged to address this issue, emphasizing a healthy hydrological cycle through infiltration, retention, storage, purification, utilization, and drainage. Surface infiltration, as a key component, can reduce surface runoff, replenish groundwater, mitigate the impact of urban development on the natural hydrological cycle, alleviate pressure on drainage pipes, and alleviate flooding. Simultaneously, it improves rainwater resource utilization, becoming an important direction for solving urban water problems.

[0004] Most municipal drainage systems are designed for rapid flood control, with rainwater undergoing only simple filtration before being discharged into rivers or pipe networks, failing to achieve water resource reuse. While some sponge facilities have water storage capabilities, their purification precision is insufficient, making them unsuitable for municipal miscellaneous uses such as irrigation and road spraying. Therefore, a sponge-type water-retaining greening system is proposed to address these issues. Utility Model Content

[0005] The purpose of this utility model is to provide a sponge-type water-retaining green belt to solve the above-mentioned problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sponge-type water-retaining green belt, comprising a green belt body, a water-retaining device provided inside the green belt body, the water-retaining device comprising a belt body, a rainwater inlet fixedly connected to the side of the belt body, a storage pipe fixedly connected to one side of the rainwater inlet, a drainage pipe fixedly connected to the other side of the rainwater inlet, a flower assembly trough fixedly connected inside the belt body, peat soil provided inside the belt body, a seepage outlet fixedly connected inside the belt body, and an anti-clogging device provided inside the rainwater inlet.

[0007] In a preferred embodiment, the anti-clogging device includes a fixed block, a first rotating rod, a second rotating rod, and a filter plate. A waterwheel is rotatably connected inside the fixed block, a first bevel gear is fixedly connected to the front of the waterwheel, a first transmission wheel is fixedly connected to the outer side of the first rotating rod, a scraper is fixedly connected to the side of the first rotating rod, a second transmission wheel is fixedly connected to the outer side of the second rotating rod, and a second bevel gear is fixedly connected to the side of the second rotating rod.

[0008] In a preferred embodiment, the filter plate is fixedly connected to the inside of the rainwater inlet.

[0009] In a preferred embodiment, the first rotating rod is rotatably connected to the side of the filter plate.

[0010] In a preferred embodiment, the second rotating rod is rotatably connected to the inside of the rainwater inlet.

[0011] In a preferred embodiment, the first bevel gear and the second bevel gear mesh perpendicularly with each other.

[0012] In a preferred embodiment, both the first and second transmission wheels have transmission grooves inside and are connected to each other by a transmission belt.

[0013] In a preferred embodiment, a plurality of scrapers are fixedly connected to the side of the first rotating rod.

[0014] Compared with the prior art, this utility model has the following features and beneficial effects: 1. In this utility model, the sponge-type water-retaining green belt is constructed around a four-dimensional integrated system of drainage, water storage, landscape and people's livelihood. It achieves efficient rainwater management by relying on the coordinated operation of key components and standardized construction process. A portion of the rainwater is absorbed and retained by the peat soil to provide water for plant growth, while excess rainwater enters the pipeline through the seepage port of the storage pipe, connecting the scattered water storage units of the green belt into a network. At the same time, the drainage pipe connects the green belt to the urban drainage system, forming a three-level rainwater guidance system of surface runoff, shallow infiltration and pipe network collection. The upper opening and side permeable structure of the flower assembly trough can not only prevent rainwater backflow, but also guide excess irrigation water of plants into the peat soil layer below through the side wall diversion channel.

[0015] 2. When a large amount of rainwater rushes in at high speed, the water flow will impact the waterwheel inside the rainwater inlet. Under the impact force of the water flow, the waterwheel will rotate stably around the side of the fixed block. As the waterwheel rotates, the second transmission wheel is linked with the first transmission wheel on the first rotating rod on the other side through the ring transmission belt. The scraper is fixedly connected to the side of the first rotating rod. One end of the scraper is attached to the surface of the filter plate. The scraper will make a circular motion on the surface of the filter plate, scraping and pushing the debris attached to the mesh of the filter plate to both sides of the rainwater inlet, thereby effectively preventing impurities from clogging the filter plate and the rainwater inlet. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] Figure 1 This is a three-dimensional schematic diagram of the entire utility model; Figure 2 This is a top sectional view of the present invention; Figure 3 This is a side sectional view of the present invention. Figure 4 This is a cross-sectional view of the front part of this utility model.

[0018] Attached reference numerals: 1 - Green belt body, 2 - Water retention device, 21 - Belt body, 22 - Rainwater inlet, 23 - Storage pipe, 24 - Drainage pipe, 25 - Flower assembly trough, 26 - Peat soil, 27 - Infiltration outlet, 3 - Anti-clogging device, 31 - Fixing block, 32 - First rotating rod, 33 - Second rotating rod, 34 - Waterwheel, 35 - First bevel gear, 36 - First transmission wheel, 37 - Scraper, 38 - Second transmission wheel, 39 - Second bevel gear, 310 - Filter plate. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1: See the examples. Figures 1 to 4 As shown, this utility model discloses a sponge-type water-retaining green belt, including a green belt body 1. A water-retaining device 2 is installed inside the green belt body 1. The water-retaining device 2 includes a belt body 21. A rainwater inlet 22 is fixedly connected to the side of the belt body 21. A storage pipe 23 is fixedly connected to one side of the inside of the rainwater inlet 22. The storage pipe 23 is made of HDPE double-wall corrugated pipe. The outer wall of the pipe is wrapped with 300g / ㎡ needle-punched non-woven geotextile to prevent mud and sand from entering the pipe cavity. The joint is flexibly connected with a rubber sealing ring.

[0021] The laying method involves excavating a trench 30cm below the peat layer 26, with a width 40cm larger than the pipe diameter. A 15cm thick medium-coarse sand cushion layer is laid at the base, compacted to 90%. The pipe network is laid in a herringbone pattern, with the main pipe laid along the central axis of the green belt. Branch pipes extend to both sides at 90° angles, spaced 3-5m apart. 5mm seepage inlets 27 are opened on the branch pipes at 20cm intervals, with the inlets arranged circumferentially to ensure rainwater evenly seeps into the surrounding peat layer 26. A drainage pipe 2 is fixedly connected to the other side of the inside of each rainwater inlet 22. 4. Drainage pipe 24 connects the green belt body 1 to the drainage system, ensuring that the road drainage and the subsequent storage pipe 23 and peat soil 26 layer form a three-level rainwater guidance system of surface runoff, shallow infiltration and pipe network collection. The inside of the belt body 21 is fixedly connected to a flower assembly trough 25. The flower assembly trough 25 adopts an open top and side permeable structure, and the top is 5cm higher than the curb to prevent rainwater backflow. The side wall is equipped with a diversion channel to divert excess irrigation water of plants to the peat soil 26 layer below to avoid road water accumulation.

[0022] The flower assembly trough 25 is a modular PP material container with a 10mm water permeable hole at the bottom. The trough is filled with a mixed substrate of peat moss 26, perlite, and slow-release fertilizer. The container is fixed to the curbstone slot with buckles and can be quickly disassembled and replaced.

[0023] The flowers in the trough are adjusted according to social needs. The interior of the belt 21 is filled with peat soil 26. The peat soil 26 is high-grade peat soil with a decomposition degree of 30%-40%, pH value of 5.0-6.5, and EC value of <1.0mS / cm. It is backfilled in two layers, each 25cm thick. After each layer is spread, it is lightly compacted to a compaction degree of 85% to ensure a porosity of ≥50% and form a sponge-like water storage layer. The interior of the belt 21 is fixedly connected with seepage outlets 27, and the interior of the rainwater outlets 22 is equipped with anti-clogging devices 3.

[0024] The anti-clogging device 3 includes a fixed block 31, a first rotating rod 32, a second rotating rod 33, and a filter plate 310. The second rotating rod 33 is rotatably connected to the inside of the rainwater inlet 22, and the filter plate 310 is fixedly connected to the inside of the rainwater inlet 22. The filter plate 310 discharges rainwater and blocks impurities in the rainwater. A waterwheel 34 is rotatably connected to the inside of the fixed block 31. The first rotating rod 32 is rotatably connected to the side of the filter plate 310. A first bevel gear 35 is fixedly connected to the front of the waterwheel 34. A first transmission wheel 36 is fixedly connected to the outside of the first rotating rod 32. A scraper 37 is fixedly connected to the side of the first rotating rod 32. A total of multiple scrapers 37 are fixedly connected to the side of the first rotating rod 32. The arrangement of multiple scrapers 37 makes its overall impurity removal and anti-clogging effect better.

[0025] A second transmission wheel 38 is fixedly connected to the outer side of the second rotating rod 33. Both the first transmission wheel 36 and the second transmission wheel 38 have transmission grooves inside and are connected to each other by a transmission belt. This design allows the first rotating rod 32 to rotate through the transmission belt when the second rotating rod 33 rotates. A second bevel gear 39 is fixedly connected to the side of the second rotating rod 33. The first bevel gear 35 and the second bevel gear 39 mesh perpendicularly with each other. This design allows the second rotating rod 33 to start rotating when the waterwheel 34 rotates.

[0026] Example 2: Construction steps of this utility model: Step 1: Complete the road structure construction and backfill with peat soil 26 in layers. First, perform foundation treatment, then backfill with peat soil 26 in two layers, each layer being 0.5 meters thick, for a total thickness of 1 meter. After each layer of backfill, use light compaction to ensure that the compaction degree reaches 85%. Step 2: Install the storage pipe 23 system and seepage outlet 27. After the lower layer of peat soil 26 is backfilled, excavate the pipe trench and install HDPE double-wall corrugated pipe as storage pipe 23. The pipe is wrapped with 300g / ㎡ needle-punched non-woven geotextile. The joints are connected with rubber sealing rings. The pipe network is laid in a fishbone pattern. The main pipe is laid along the central axis of the green belt body 1, and the branch pipes extend to both sides at a 90° angle with a spacing of 3-5 meters. A 5 mm circumferential seepage outlet 27 is opened every 20 cm on the branch pipe. Step 3: Complete the upper backfill and install the flower assembly trough 25. After completing the upper 0.5-meter peat soil 26 backfill, install the modular PP material flower assembly trough 25 at the curb position. The trough is fixed to the curb with buckles. The trough is filled with a mixed substrate of peat soil 26, perlite and slow-release fertilizer. A 10 mm water permeable hole is set at the bottom. Step 4: Install rainwater inlet 22 and anti-clogging device 3. Install rainwater inlet 22 at the end of the system. The anti-clogging device 3 is installed inside, including components such as fixing block 31, water wheel 34, filter plate 310, first rotating rod 32, second rotating rod 33, scraper 37, etc., to form a complete rainwater collection and anti-clogging system.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sponge-type water-retaining green belt, characterized in that: include: The green belt body (1) is equipped with a water retention device (2) inside the green belt body (1). The water retention device (2) includes a belt body (21). A rainwater inlet (22) is fixedly connected to the side of the belt body (21). A storage pipe (23) is fixedly connected to one side of the inside of the rainwater inlet (22). A drainage pipe (24) is fixedly connected to the other side of the inside of the rainwater inlet (22). A flower assembly trough (25) is fixedly connected inside the belt body (21). Peat soil (26) is provided inside the belt body (21). A seepage outlet (27) is fixedly connected inside the belt body (21). An anti-clogging device (3) is provided inside the rainwater inlet (22).

2. The sponge-type water-retaining green belt according to claim 1, characterized in that: The anti-clogging device (3) includes a fixed block (31), a first rotating rod (32), a second rotating rod (33), and a filter plate (310). A waterwheel (34) is rotatably connected inside the fixed block (31). A first bevel gear (35) is fixedly connected to the front of the waterwheel (34). A first transmission wheel (36) is fixedly connected to the outer side of the first rotating rod (32). A scraper (37) is fixedly connected to the side of the first rotating rod (32). A second transmission wheel (38) is fixedly connected to the outer side of the second rotating rod (33). A second bevel gear (39) is fixedly connected to the side of the second rotating rod (33).

3. The sponge-type water-retaining green belt according to claim 2, characterized in that: The filter plate (310) is fixedly connected to the inside of the rainwater inlet (22).

4. The sponge-type water-retaining green belt according to claim 3, characterized in that: The first rotating rod (32) is rotatably connected to the side of the filter plate (310).

5. A sponge-type water-retaining green belt according to claim 4, characterized in that: The second rotating rod (33) is rotatably connected to the inside of the rainwater inlet (22).

6. A sponge-type water-retaining green belt according to claim 5, characterized in that: The first bevel gear (35) and the second bevel gear (39) mesh perpendicularly with each other.

7. A sponge-type water-retaining green belt according to claim 6, characterized in that: The first transmission wheel (36) and the second transmission wheel (38) both have transmission grooves inside and are connected to each other by transmission belts.

8. A sponge-type water-retaining green belt according to claim 7, characterized in that: Multiple scrapers (37) are fixedly connected to the side of the first rotating rod (32).

Images