River ecological buffer zone

Abstract

The utility model discloses a riverway ecological buffer zone which comprises a river levee and a partition wall, a water storage assembly is installed on one side of the partition wall, the water storage assembly comprises a water pool and an inlet pipe, a discharge assembly is installed on the water pool and comprises a grid and a discharge port, and purification assemblies are installed on the two sides of the partition wall. The purification assembly comprises a green land and a wet land, a filtering assembly is installed at the bottom of the green land and comprises a sand layer and gravel, and a flow guide assembly is installed on the green land. Meanwhile, rainwater is stored and buffered through the water pool, the greenbelt and the wet land, the rainwater in the riverway is prevented from swelling, the riverway safety is guaranteed, when the greenbelt is submerged by the rainwater for a long time, the rainwater directly falls into the sand layer through the bent pipe and the guide pipe, the growth safety of vegetation in the greenbelt is guaranteed, and the device is suitable for rainwater buffering and riverway ecological protection.

Description

Technical Field

[0001] This utility model relates to the field of river ecological buffer structure technology, specifically a river ecological buffer zone. Background Technology

[0002] To prevent rainwater carrying pollutants from directly flowing into rivers and to ensure the cleanliness of river water, it is often necessary to construct ecological buffer structures on both sides of the river. Utility model patent application number CN202220234193.7 discloses an ecological river buffer zone. By setting up deep-rooted tree and shrub zones, the roots of the plants can act as a solidifying agent, achieving a protective effect. Since the slope is sloping, planting even deeper-rooted trees creates a deep-root pollution interception zone, increasing the root thickness perpendicular to the slope direction, thus further enhancing the protective effect. In addition, the roots can also play a role in ecological restoration, purifying sewage during infiltration and into the river. According to the disclosed technical solution, existing river ecological buffer structures, when used, have two main drawbacks. First, relying solely on vegetation for rainwater purification makes it easy for heavy rainwater to flow directly into the river, which is detrimental to the environmental protection of the river. Second, during periods of heavy rainfall, the vegetation can be submerged, jeopardizing its growth.

[0003] Therefore, how to design ecological buffer zones in river channels has become a problem we need to solve. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a river ecological buffer zone to solve the problems mentioned in the background technology. This utility model is reasonably designed, convenient to use, and suitable for rainwater buffering and river ecological protection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a river ecological buffer zone, comprising a river embankment and a partition wall, a water storage component installed on one side of the partition wall, the water storage component comprising a pool and an inlet pipe, a discharge component installed on the pool, the discharge component comprising a grid and an outlet, purification components installed on both sides of the partition wall, the purification components comprising green space and wetland, a filter component installed at the bottom of the green space, the filter component comprising a sand layer and gravel, a flow guiding component installed on the green space, the flow guiding component comprising a guide pipe and a bend, a delayed opening component installed on the bend, the delayed opening component comprising a sleeve and a float.

[0006] Furthermore, the wetland is constructed on one side of the river embankment, with a foundation stone laid on one side of the wetland, gravel laid on top of the foundation stone, a sand layer laid on top of the gravel, a partition wall constructed on top of the foundation stone, and both the gravel and sand layer laid on one side of the partition wall, with the wetland located at the bottom of the other side of the partition wall.

[0007] Furthermore, the green space is laid on top of the sand layer, the green space is located on one side of the partition wall, the water pool is built on one side of the green space, the inlet pipe is bolted to the top of one side of the water pool, and a manhole cover is installed on the top of the water pool.

[0008] Furthermore, the grating is bolted to the inside of the pool, the outlet is opened on the other side of the pool, and the outlet is located at the top of one side of the green space.

[0009] Furthermore, the top end of the conduit is installed on the top of the green space, the bottom end of the conduit passes through the green space and extends to the top of the sand layer, one end of the bend is welded to the top end of the conduit, and the other end of the bend extends to the top of the green space.

[0010] Furthermore, a suction cover is welded to the other end of the bend, a filter screen is welded to the inner wall of the suction cover, the sleeve is welded to the top of the bend, the top of the float is locked inside the sleeve, and the bottom of the float extends to the inside of the bend and is locked on the inner wall of the bend.

[0011] Furthermore, a slot is provided on one side of the sleeve, a notch is provided on the inner side of the float, a pin is secured inside the slot, one end of the pin is connected to the inner wall of the slot via a spring, and the other end of the pin passes through the slot and extends to one end of the notch.

[0012] Furthermore, a water-absorbing and expanding resin is bonded to the inner side of the other end of the bayonet, and a water-absorbing cotton is installed at one end of the water-absorbing and expanding resin. One end of the water-absorbing cotton passes through the float and extends to the outer side of the bottom of the float.

[0013] Beneficial effects: 1. When this river ecological buffer zone is in use, rainwater flows into the inner side of the pool through inlet pipes and manhole covers, then passes through a grid to isolate debris in the rainwater, and is discharged into the green space through the outlet. The rainwater infiltrates into the sand layer through the green space, and then infiltrates into the wetland in sequence through the sand layer, gravel, and foundation stone. The green space, sand layer, gravel, and foundation stone effectively filter the rainwater. In the wetland, the rainwater is purified by aquatic plants and microorganisms, reducing soluble pollutants in the rainwater. The purified rainwater flows into the river channel through the wetland across the riverbank. The barrier wall prevents rainwater from flowing directly into the river channel even if it overflows the green space, ensuring that the rainwater is fully purified and filtered. At the same time, the pool, green space, and wetland store and buffer the rainwater, preventing the river channel from flooding and ensuring the safety of the river.

[0014] 2. When this river ecological buffer zone is in use, if prolonged rainfall causes the green space to be submerged for an extended period, the rainwater, after being filtered by the filter screen, enters the inner side of the bend through the suction hood. It then slowly wets the absorbent cotton, which in turn wets the water-absorbing and expanding resin. The resin absorbs the water and expands, pushing the locking pin outwards from the inside of the float. The locking pin compresses the spring and completely removes the float from the inside, causing it to float upwards. This allows the rainwater to flow through the bend and conduit, directly into the inner side of the sand layer, and then through the sand layer, gravel, and foundation stones to infiltrate the wetland. This increases the drainage speed, ensuring the safety of vegetation growth within the green space. When rainwater briefly floods the top of the green space, it retains the rainwater, ensuring adequate buffering and purification. Furthermore, when rainfall decreases, the water stored in the pool can be used to irrigate the vegetation, ensuring its safe growth.

[0015] 3. The river ecological buffer zone is reasonably designed, highly efficient and convenient to use, and suitable for rainwater buffering and river ecological protection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a river ecological buffer zone according to the present invention;

[0017] Figure 2 This is a cross-sectional view of a river ecological buffer zone according to the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of a curved pipe for a river ecological buffer zone according to the present invention;

[0019] In the diagram: 1. Riverbank; 2. Partition wall; 3. Pool; 4. Inlet pipe; 5. Manhole cover; 6. Grille; 7. Outlet; 8. Green space; 9. Sand layer; 10. Gravel; 11. Foundation stone; 12. Wetland; 13. Pipe; 14. Bend; 15. Suction hood; 16. Filter screen; 17. Sleeve; 18. Float; 19. Locking pin; 20. Spring; 21. Water-absorbing and expanding resin; 22. Water-absorbing cotton. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 3This utility model provides a technical solution: a river ecological buffer zone, including a river embankment 1 and a partition wall 2. A water storage component is installed on one side of the partition wall 2, the water storage component including a pool 3 and an inlet pipe 4. A discharge component is installed on the pool 3, the discharge component including a grille 6 and an outlet 7. Purification components are installed on both sides of the partition wall 2, the purification components including green space 8 and wetland 12. A filter component is installed at the bottom of the green space 8, the filter component including a sand layer 9 and gravel 10. A flow guiding component is installed on the green space 8, the flow guiding component including a conduit 13 and a bend 14. A delayed-opening assembly is installed on the bend 14. The delayed-opening assembly includes a sleeve 17 and a float 18. The wetland 12 is built on one side of the riverbank 1. A foundation stone 11 is laid on one side of the wetland 12. Crushed stone 10 is laid on top of the foundation stone 11. A sand layer 9 is laid on top of the crushed stone 10. The partition wall 2 is built on top of the foundation stone 11. Both the crushed stone 10 and the sand layer 9 are laid on one side of the partition wall 2. The wetland 12 is located at the bottom of the other side of the partition wall 2. A green space 8 is laid on top of the sand layer 9. The green space 8 is located on one side of the partition wall 2. The pool 3 is constructed... On one side of the green space 8, the inlet pipe 4 is bolted to the top of one side of the pool 3. A manhole cover 5 is installed on the top of the pool 3. A grating 6 is bolted to the inside of the pool 3. The outlet 7 is located on the other side of the pool 3, at the top of one side of the green space 8. In use, rainwater flows into the inside of the pool 3 through the inlet pipe 4 and manhole cover 5, then passes through the grating 6 to separate impurities from the rainwater, and is discharged onto the green space 8 through the outlet 7. The rainwater permeates through the green space 8 into the sand layer 9, then sequentially through the sand layer 9, gravel 10, and foundation stone 11 before permeating into the wetland 12, effectively... The system utilizes green space 8, sand layer 9, gravel 10, and foundation stone 11 to filter rainwater. Within wetland 12, rainwater is purified by aquatic plants and microorganisms, reducing soluble pollutants. The purified rainwater flows through wetland 12 across riverbank 1 into the river channel. The partition wall 2 prevents rainwater from overflowing green space 8 and flowing directly into the river channel, ensuring thorough purification and filtration. Simultaneously, the pool 3, green space 8, and wetland 12 serve as a buffer to store and prevent sudden flooding of the river channel, ensuring its safety.

[0022] In this embodiment, the top end of the conduit 13 is installed on the top of the green space 8, and the bottom end of the conduit 13 passes through the green space 8 and extends to the top of the sand layer 9. One end of the bent pipe 14 is welded to the top end of the conduit 13, and the other end of the bent pipe 14 extends to the top of the green space 8. A suction cover 15 is welded to the other end of the bent pipe 14, and a filter screen 16 is welded to the inner wall of the suction cover 15. The sleeve 17 is welded to the top of the bent pipe 14, and the top of the float 18 is locked inside the sleeve 17. The bottom of the float 18 extends to... The sleeve 17 has a groove on one side and a slot on the inside of the float 18. A locking pin 19 is secured to the inside of the groove. One end of the locking pin 19 is connected to the inner wall of the groove via a spring 20. The other end of the locking pin 19 passes through the groove and extends to one end of the slot. A water-absorbing and expanding resin 21 is adhered to the inside of the other end of the slot. A water-absorbing cotton 22 is installed at one end of the water-absorbing and expanding resin 21. One end of the water-absorbing cotton 22 passes through the float 18 and extends... When the rain lasts for a long time, causing the green area 8 to be submerged for an extended period, the rainwater, after being filtered by the filter screen 16, enters the inner side of the bend pipe 14 through the suction cover 15. It then slowly wets the absorbent cotton 22, which in turn wets the water-absorbing and expanding resin 21. The resin 21 absorbs the water and expands, pushing the locking pin 19 outward from the inside of the float 18. After the locking pin 19 compresses the spring 20 and completely moves out of the inside of the float 18, the float 18 is lifted upward by the rainwater. This allows rainwater to pass through the bend 14 and conduit 13 through the green space 8 and fall directly to the inside of the sand layer 9. Then, it seeps into the wetland 12 through the sand layer 9, gravel 10, and foundation stone 11, increasing the drainage speed of rainwater, ensuring the growth safety of vegetation in the green space 8, and retaining rainwater when it briefly floods the top of the green space 8, ensuring sufficient buffering and purification of rainwater. When the rainfall decreases, the water stored in the pool 3 can be used to irrigate the vegetation in the green space 8, ensuring the safe growth of vegetation in the green space 8.

[0023] When in use, the river ecological buffer zone allows rainwater to flow into the inner side of the pool 3 through the inlet pipe 4 and manhole cover 5. It then passes through the grille 6 to separate debris from the rainwater before discharging it onto the green space 8 through the outlet 7. The rainwater then permeates through the green space 8 into the sand layer 9, and then sequentially through the sand layer 9, gravel 10, and foundation stone 11 before entering the wetland 12. This effectively utilizes the green space 8, sand layer 9, gravel 10, and foundation stone 11 to filter the rainwater. Within the wetland 12, the rainwater is further filtered by the aquatic plants and microorganisms within the wetland 12. Biological purification processes reduce soluble pollutants in rainwater. The purified rainwater flows through wetland 12, over riverbank 1, and into the river channel. The barrier wall 2 prevents rainwater from overflowing the green space 8 and directly entering the river channel, ensuring thorough purification and filtration. Simultaneously, the pond 3, green space 8, and wetland 12 buffer and store rainwater, preventing sudden surges in the river channel and ensuring its safety. When rainfall is prolonged, the green space 8... When the water level is submerged by rainwater, the rainwater, after being filtered by the filter screen 16, enters the inside of the bend 14 through the suction cover 15, and then slowly wets the absorbent cotton 22. The absorbent cotton 22 slowly wets the water-absorbing and expanding resin 21. After absorbing water, the water-absorbing and expanding resin 21 expands, pushing the locking pin 19 outward from the inside of the float 18. After the locking pin 19 compresses the spring 20 and completely moves out from the inside of the float 18, the float 18 is lifted upward by the rainwater, thus allowing the rainwater to pass through the bend 14 and the conduit. 13 passes through the green space 8 and falls directly to the inside of the sand layer 9. Then, it permeates into the wetland 12 through the sand layer 9, gravel 10, and foundation stone 11, improving the drainage speed of rainwater, ensuring the growth safety of vegetation in the green space 8, and retaining rainwater when it briefly floods the top of the green space 8, ensuring sufficient buffering and purification of rainwater. When the rainwater decreases, the water stored in the pool 3 can be used to irrigate the vegetation in the green space 8, ensuring the safe growth of vegetation in the green space 8.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A river ecological buffer zone, comprising a river embankment (1) and a partition wall (2), one side of the partition wall (2) being provided with a water storage assembly, the water storage assembly comprising a water pool (3) and an inlet pipe (4), the water pool (3) being provided with a discharge assembly, the discharge assembly comprising a grid (6) and a discharge opening (7), characterized in that: The both sides of the partition wall (2) are provided with purification assemblies, the purification assemblies comprise green land (8) and wet land (12), the bottom of the green land (8) is provided with filter assemblies, the filter assemblies comprise sand layer (9) and gravel (10), the green land (8) is provided with flow guide assemblies, the flow guide assemblies comprise pipe (13) and elbow pipe (14), the elbow pipe (14) is provided with time-delay opening assemblies, the time-delay opening assemblies comprise sleeve (17) and float (18).

2. The river ecological buffer zone according to claim 1, characterized in that: The wet land (12) is built on one side of the river embankment (1), one side of the wet land (12) is paved with base stone (11), the gravel (10) is paved on the top of the base stone (11), the sand layer (9) is paved on the top of the gravel (10), the partition wall (2) is built on the top of the base stone (11), the gravel (10) and the sand layer (9) are both paved on one side of the partition wall (2), and the wet land (12) is located at the bottom of the other side of the partition wall (2).

3. The river ecological buffer zone according to claim 2, characterized in that: The green land (8) is paved on the top of the sand layer (9), the green land (8) is located on one side of the partition wall (2), the water pool (3) is built on one side of the green land (8), the inlet pipe (4) is bolted on the top of one side of the water pool (3), and the well lid (5) is installed on the top of the water pool (3).

4. The river ecological buffer zone according to claim 3, characterized in that: The grid (6) is bolted on the inner side of the water pool (3), and the discharge port (7) is formed on the other side of the water pool (3) and located on the top of one side of the green land (8).

5. The river ecological buffer zone according to claim 1, characterized in that: The top end of the pipe (13) is installed on the top of the green land (8), the bottom end of the pipe (13) penetrates through the green land (8) and extends to the top of the sand layer (9), one end of the elbow pipe (14) is welded on the top end of the pipe (13), and the other end of the elbow pipe (14) extends to the top of the green land (8).

6. A river ecological buffer zone according to claim 5, characterized in that: The other end of the elbow pipe (14) is welded with suction cover (15), the inner wall of the suction cover (15) is welded with filter screen (16), the sleeve (17) is welded on the top of the elbow pipe (14), the top of the float (18) is clamped on the inner side of the sleeve (17), and the bottom of the float (18) extends to the inner side of the elbow pipe (14) and is clamped on the inner wall of the elbow pipe (14).

7. A river ecological buffer zone according to claim 6, characterized in that: One side of the sleeve (17) is provided with clamping groove, the inner side of the float (18) is provided with clamping opening, the inner side of the clamping groove is clamped with clamping pin (19), one end of the clamping pin (19) is connected with the inner wall of the clamping groove through spring (20), and the other end of the clamping pin (19) penetrates through the clamping groove and extends to one end of the clamping opening.

8. A river ecological buffer zone according to claim 7, characterized in that: The inner side of the other end of the clamping opening is bonded with water-absorbing expansion resin (21), one end of the water-absorbing expansion resin (21) is provided with water-absorbing cotton (22), and one end of the water-absorbing cotton (22) penetrates through the float (18) and extends to the outer side of the bottom of the float (18).

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