Modularized bionic floating island system with scouring protection function

Abstract

The utility model belongs to the technical field of waterfront ecological restoration, and particularly relates to a modularized bionic floating island system with a scouring protection function, which comprises an anchoring-retracting mechanism and a bionic floating island module array, the anchoring-retracting mechanism is connected with the bionic floating island module array through a traction cable, and the traction cable is wound on the guide pulley; the bionic floating island module array is composed of a plurality of bionic floating island modules through flexible connecting assemblies. Compared with the prior art, the ecological floating island solves the problem that an ecological floating island in the prior art is difficult to meet the wave-resistant and anti-scouring requirements under different environmental conditions. According to the scheme, the bionic floating island module array is retracted and released through the anchoring-retracting and releasing mechanism, switching of the bionic floating island modules with the anti-scouring and wave-absorbing functions under different postures is achieved, and therefore adjustment can be conveniently carried out to meet different wave-resistant and anti-scouring requirements.

Description

Technical Field

[0001] This utility model belongs to the field of waterfront ecological restoration technology, specifically relating to a modular biomimetic floating island system with scour protection function. Background Technology

[0002] In the current urban waterfront space renovation and transformation, it is often necessary to balance the requirements of shoreline stability and erosion prevention of existing water conservancy facilities with ecological restoration, landscape enhancement and public access to water.

[0003] Existing waterfront ecological landscape and revetment projects typically employ fixed revetments, prefabricated slope protection, or modular ecological components to achieve vegetation restoration and the creation of localized habitats, such as existing technical solutions CN210630417U and CN211368589U. However, these solutions are mostly static structures, and their structural form and location are difficult to adapt to environmental factors such as water level fluctuations, flood impacts, and wind and waves. While these landscape structures may meet landscape and greening requirements under normal conditions, they are prone to problems such as intensified localized erosion at the bank's foot, unfavorable stress on components, loose connections, and even functional failure under extreme hydrodynamic conditions. This makes it difficult to deploy such landscape structures long-term in waterfront areas with complex environmental conditions, or they require frequent maintenance and repair work after deployment, resulting in high long-term costs and potential safety hazards.

[0004] In addition, existing technologies have also conducted some research and development on floating ecosystems (also known as artificial floating beds, ecological floating islands, etc.). Compared with fixed static structures, they have a certain passive following ability and can adapt to the natural environment. For example, CN210457651U discloses a biomimetic floating island device, CN114084961A discloses a floating ecological wetland system and construction method suitable for coastal bays, CN120483391A discloses a water purification ecological floating island device for black and odorous water treatment, and CN106277347B discloses a floating island unit and a combined ecological floating island using the floating island unit, etc. However, the technical objectives of these existing solutions are mainly focused on improving the ecological environment, such as water purification, water restoration, and the creation or enhancement of ecological landscapes. Floating islands are usually used as ecological carriers or purification units. Their anchoring methods mostly adopt fixed anchor points, mooring ropes, anchor chains, or rigid positioning components to fix the position or limit the drift range. There is relatively little development of the functions of embankment wave protection and scour prevention, and there is a lack of means to make the structural layout adjustable and the attitude switchable for different hydrodynamic conditions.

[0005] From an engineering application perspective, the hydrodynamic conditions of waterfront areas exhibit significant temporal variability and varying operational conditions: during the normal water season, small waves and currents dominate, prioritizing landscape and ecological functions; during the flood season or severe convective weather, nearshore current velocities increase and waves rise, making localized erosion at the bank's foot more likely, thus prioritizing wave and erosion prevention; and under different tidal levels or flow directions, the most unfavorable erosion locations and intensities also change. For such multi-condition waterfront environments, relying solely on fixed revetments or passively floating ecological islands often fails to simultaneously meet the requirements of maintaining the continuity of the shoreline landscape and water purification efficiency under normal conditions, forming an effective offshore buffer and wave dissipation under extreme conditions, and quickly restoring to a normal layout after changes in operational conditions. Existing technologies CN102635099A discloses a floating island net technology for efficient wave reduction and planting of higher plants to suppress algal blooms on the water surface, and CN116374103A discloses a floating sand-prevention and wave-dissipating system structure. However, these solutions use anchoring methods to fix the floating islands to allow limited follow-up, lacking the ability to repeatedly and controllably adjust key parameters such as the position of the floating array relative to the shoreline, the outward distance, and the force path. This makes it difficult to actively meet different wave prevention and scour prevention requirements, such as close-to-shore arrangement or outward arrangement, according to different water levels, wave heights, and flow velocities. Especially during the flood season or under conditions of strong winds and waves, if the position of the floating bodies is not adjustable or only relies on loose mooring for follow-up, problems such as the inability to form a buffer zone, drifting and collision, localized force concentration, and insufficient energy dissipation distance in front of the shoreline are likely to occur, making it difficult to stably perform the wave prevention and scour prevention effects.

[0006] Therefore, there is an urgent need for a waterfront ecological landscape system that can take into account both scour prevention and wave dissipation functions as well as water purification and ecological functions, and can adjust and limit the position of the floating island module array relative to the shoreline through structural means, so as to achieve adjustable and switchable wave prevention and scour prevention effects under different environmental conditions, in order to meet the requirements of long-term safe operation and low maintenance under complex hydrodynamic conditions. Utility Model Content

[0007] The purpose of this invention is to provide a modular biomimetic floating island system with scour protection function to solve at least one of the above-mentioned problems, thereby addressing the difficulty of existing ecological floating islands in meeting the wave and scour protection requirements under different environmental conditions. This solution utilizes an anchoring-deployment mechanism to deploy and retract the biomimetic floating island module array, enabling the switching of the scour-resistant and wave-damping biomimetic floating island modules in different postures, thus allowing for convenient adjustment to meet various wave and scour protection requirements.

[0008] The objective of this utility model is achieved through the following technical solution:

[0009] A modular biomimetic floating island system with scour protection function includes an anchoring-deployment mechanism and a biomimetic floating island module array;

[0010] The anchoring-retrieval mechanism includes a guide component and a retrieval assembly; the guide component includes a guide pulley and a guide rail, the guide rail is fixedly installed on the shore wall in the horizontal direction, and the guide pulley is slidably mounted on the guide rail; the retrieval assembly includes a winch and a traction cable, the winch is connected to the bionic floating island module array through the traction cable, and the traction cable is wound around the guide pulley.

[0011] The biomimetic floating island module array is composed of several biomimetic floating island modules connected by flexible components. Each biomimetic floating island module includes a floating frame, a biomimetic porous underwater ecological habitat unit, and a plant growth substrate layer. The floating frame is equipped with a buoyancy unit, allowing it to float on the water surface. The biomimetic porous underwater ecological habitat unit is connected to the lower part of the floating frame and is a porous structure with an internally connected habitat cavity and a flow channel. The plant growth substrate layer is located above the floating frame and is connected to the flow channel through a seepage channel.

[0012] The flexible connection assembly includes a connecting belt, a perforated fixing seat, a clamping locking fastener, and a tensioning limiting member; the perforated fixing seat is assembled on the side wall of the bionic floating island module, the connecting belt is connected between the perforated fixing seats of the two bionic floating island modules and fixed by the clamping locking fastener, and the tensioning limiting member is set on the bionic floating island module to apply pre-tension to the connecting belt.

[0013] Preferably, the biomimetic porous underwater ecological habitat unit is connected to the lower part of the floating frame by detachable fasteners, so that the biomimetic porous underwater ecological habitat unit is located underwater.

[0014] The porous structure has uniformly distributed through holes, and the surface of the porous structure is a rough surface.

[0015] The connected habitat cavity and the flow channel are interconnected.

[0016] Preferably, the plant growth substrate layer is fixed to the top of the floating frame by threaded parts and / or fasteners, so that the plant growth substrate layer is located on the water surface;

[0017] The plant growth substrate layer includes a plant layer, a planting soil substrate layer and a filter layer stacked sequentially from top to bottom. The filter layer is the bottom layer close to the floating frame, and the seepage channels are formed within the filter layer.

[0018] Preferably, the biomimetic floating island module further includes sensing components and a self-powered unit installed on the floating body frame;

[0019] The sensing components include at least one of a water quality sensor, a water level sensor, a flow velocity sensor, an attitude sensor, and a force sensor;

[0020] The self-powered unit includes photovoltaic modules, and the self-powered unit is electrically connected to the sensing modules.

[0021] Preferably, the biomimetic floating island module further includes a micro pump and an aerator installed on the floating body frame;

[0022] The self-powered unit is electrically connected to the micro pump and the aerator.

[0023] Preferably, the modular biomimetic floating island system further includes a shore-based base;

[0024] The aforementioned shore-side base includes a control module and a power supply unit;

[0025] The control module is communicatively connected to the guide rail and the winch;

[0026] The power supply unit is electrically connected to the guide rail and the winch.

[0027] Preferably, the outer surface of the floating frame and / or the biomimetic porous underwater ecological habitat unit is provided with a self-healing coating;

[0028] The modular biomimetic floating island system also includes a trigger light source positioned toward the self-healing coating.

[0029] Preferably, the clamping fastener includes a clamping plate and a fastening bolt; the clamping plate presses against the connecting strip on the perforated fixing seat, and the fastening bolt locks the clamping plate and the perforated fixing seat.

[0030] Preferably, the perforated fixing base has a slotted hole;

[0031] One end of the connecting strip is inserted into the slot and then folded back to form a folded section. The clamping plate presses the folded section at the slot and locks the clamping plate to the slotted fixing seat with the fastening bolt, so that the connecting strip is clamped and locked.

[0032] Preferably, the tensioning limiting member is a ratchet tensioner.

[0033] The working principle of this utility model is as follows:

[0034] The anchoring-deployment mechanism can deploy and retract the traction cable via a winch, thereby changing the near-shore / off-shore state of the biomimetic floating island module array. This enables the following: when deployed close to the shore, it forms a continuous ecological corridor interface, while also serving functions such as reducing near-shore hydrodynamic disturbances and scouring, constructing water purification channels, and creating habitats; when deployed outwards, the biomimetic floating island module array forms a buffer interface in front of the shoreline. Waves or flood peaks interact with the array before reaching the shoreline, rapidly weakening the peak near-shore flow velocity and turbulent scouring capacity through the energy consumption of the flexible connecting components and the disturbance and energy dissipation of the biomimetic porous underwater ecological habitat units, thus reducing the hydrodynamic energy density at the shoreline.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] (1) Variable structural form and adaptable to water level fluctuations and hydrodynamic effects: Through the anchoring-retrieval mechanism, the biomimetic floating island module array can move vertically and laterally under the guidance and constraint of the traction cable. The array can switch between shore-side and outward-moving arrangement by changing the cable length through the retrieval component, and change the arrangement posture of the array by changing the horizontal position through the guide component. This improves the problem of insufficient adaptability of traditional fixed structures under extreme hydrodynamic conditions.

[0037] Combining scour prevention and wave dissipation: The biomimetic floating island module array is continuously arranged along the edge of the dike to form a near-shore buffer interface, which can disturb the near-shore flow and weaken the local scour at the foot of the bank; when the array is moved outward to form an offshore buffer zone, it can form an energy dissipation path in front of the shoreline and reduce the direct effect of incident hydrodynamics on the dike shoreline, thereby improving the overall protection capability.

[0038] Improved reliability, impact resistance, and anti-detachment performance: Adjacent biomimetic floating island modules use flexible connecting components to achieve controlled swinging connection. Through the structural combination of "connecting belt + perforated fixing seat + clamping locking fastener + tensioning limiter", it allows multi-directional controlled swinging between modules to release impact loads, and also dissipates energy through the connecting belt. At the same time, the belt structure and pre-tightened connection method can reduce stress concentration at the connection and improve the overall connection stability of the array under wave impact and floating deformation.

[0039] (2) Stable water purification and ecological habitat functions, and clear structural synergy: Many existing ecological components focus on plant planting or habitat provision. Their water purification function mainly relies on passive filtration and natural succession. They lack interfaces and flow path organization for water passage, oxygenation and other devices that match the structural system, making it difficult to maintain stable composite ecological functions when water quality fluctuates (such as increased turbidity, decreased dissolved oxygen, and increased eutrophication). The biomimetic porous underwater ecological habitat unit proposed in this utility model adopts a porous structure with uniform through holes and sets up a connecting habitat cavity and a guide channel inside. It not only provides a three-dimensional habitat space, but also connects with the seepage channel of the plant growth substrate layer to form a vertically connected water passage path. The layered structure of the plant growth substrate layer can intercept suspended matter and form a biological attachment and root purification environment. Thus, the system can realize the composite functions of water purification and habitat creation.

[0040] (3) Strong power supply independence and reduced operation and maintenance costs: Existing solutions involving monitoring or circulation devices often rely on external power supply or a single power supply form. Under special conditions such as continuous rain and flood season, the availability of power supply decreases. Moreover, during long-term service, problems such as blockage and siltation, material aging and cracking, and fatigue wear of connectors are prone to occur, resulting in high maintenance frequency and high cost. The biomimetic floating island module proposed in this utility model is equipped with a self-powered unit for use by the sensing components. At the same time, the power supply unit can realize the collection, storage and power distribution of electrical energy from the self-powered unit, which can reduce the dependence on external power supply. The modular array structure is also convenient for partial replacement and maintenance. With the self-healing coating and the durability enhancement design of the trigger light source, the maintenance frequency can be reduced and the total life cycle cost can be reduced.

[0041] (4) Unification of landscape display and engineering structure: Some existing revetment structures have strong engineering attributes, insufficient device-likeness and display, making it difficult to unify engineering structure with landscape display and popular science interaction, and difficult to form a recognizable ecological landscape shoreline system; the shoreline base proposed in this utility model can be further integrated with landscape interactive output units (such as display screens with human-computer interaction) as needed, which can visualize the system status, so that the protective and ecological functional components have device-like and display characteristics, which is conducive to forming a recognizable waterfront ecological landscape space.

[0042] In summary, this utility model, through a reconfigurable floating island array and further combined with a systematic technical approach of autonomous monitoring and control, multi-source power supply, and low maintenance costs, achieves synergistic improvement in scour prevention and wave dissipation, water purification, and ecological landscape creation, and has good engineering adaptability and promotion and application value. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the modular biomimetic floating island system.

[0044] Figure 2 This is a schematic diagram of the biomimetic floating island module.

[0045] Figure 3 This is a schematic diagram of the flexible connection component.

[0046] In the diagram: 1-1, shoreline base; 1-2, anchoring-deployment mechanism; 1-3, control module; 1-4, power supply unit; 1-5, landscape interaction output unit; 1-21, guide component; 1-22, deployment component; 2-0, biomimetic floating island module array; 2-1, biomimetic floating island module; 2-2, floating frame; 2-3, biomimetic porous underwater ecological habitat unit; 2-4, plant growth substrate layer; 2-5, sensing component; 2-6, self-powered unit; 2-7, flexible connection component; 2-71, connecting belt; 2-72, perforated fixing seat; 2-73, clamping locking component; 2-74, tensioning limit component. Detailed Implementation

[0047] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0048] Unless otherwise specified in the following description, all materials and equipment used are currently available commercial products, and any matters not covered herein are existing technologies.

[0049] Example 1

[0050] like Figures 1-3 As shown, this utility model proposes a multifunctional intelligent bionic floating island system that also serves as a landscape display, including a shore base 1-1, an anchoring-deployment mechanism 1-2, and a bionic floating island module array 2-0 connected to the anchoring-deployment mechanism 1-2. The bank base 1-1 is fixedly installed on the riverbank slope or the top of the revetment, and a control module 1-3 and an energy supply unit 1-4 are installed inside it. The bionic floating island module array 2-0 is composed of at least two bionic floating island modules 2-1 connected by a flexible connection component 2-7. The energy supply unit 1-4 is electrically connected to the self-powered unit 2-6 installed on each bionic floating island module 2-1. At the same time, the energy supply unit 1-4 is also electrically connected to the system's electrical load (such as the sensing component 2-5 of the bionic floating island module 2-1) to realize energy storage and power distribution. The control module 1-3 is electrically connected to the drive component of the anchoring-deployment mechanism 1-2. In addition, the control module 1-3 is also signal connected to the sensing component 2-5 on the bionic floating island module 2-1 to receive data feedback measured by the sensing component 2-5.

[0051] like Figure 1As shown, the anchoring-retrieval mechanism 1-2 includes a guide member 1-21 and a retrieval assembly 1-22. The guide member 1-21 is fixedly mounted on the shore structure and specifically includes a guide pulley and a guide rail, used to guide the traction cable and allow the traction cable to undergo vertical and lateral displacement when the water level changes. In this embodiment, the guide rail is arranged horizontally and can typically be an electrically driven rail such as an electric cylinder; in this embodiment, the guide pulley is slidably mounted on the guide rail and can slide horizontally along the guide rail, specifically through a structure such as a slider or a base to achieve the slidable mounting of the guide pulley on the guide rail. The retraction and deployment assembly 1-22 preferably includes a winch, a traction cable, and a traction connector installed on the bionic floating island module array. The traction cable led out from the cable outlet of the winch is connected to the traction connector via the guide member 1-21 (the traction cable is wound around the guide pulley, which does not affect the retraction and deployment and can achieve horizontal displacement). The traction connector is fixed to the side wall of the bionic floating island module 2-1, thereby constraining and retracting the position of the bionic floating island module array 2-0 relative to the embankment through the action of the winch.

[0052] like Figure 1 As shown, the biomimetic floating island module array 2-0 consists of multiple biomimetic floating island modules 2-1 (two modules are shown in the figure as an example; the actual number of modules can be increased as needed). Figure 2 As shown, in this embodiment, the biomimetic floating island module 2-1 is preferably a modular unit with a consistent structure (in some other embodiments, the functional structure on the biomimetic floating island module 2-1 can be appropriately adjusted according to functional requirements). Adjacent biomimetic floating island modules 2-1 are connected by flexible connecting components 2-7 to form a continuous strip structure (in some embodiments, the connection can also be designed as a mesh structure). Preferably, the biomimetic floating island module 2-1 is designed with a square shape, specifically including a floating frame 2-2, a plant growth substrate layer 2-4, a biomimetic porous underwater ecological habitat unit 2-3, a sensing component 2-5, and a self-powered unit 2-6, and optionally, a self-healing coating and a trigger light source are provided on the outer wall surface.

[0053] The floating frame 2-2 is preferably composed of a square outer frame, inner supporting beams, and buoyancy units. The square outer frame serves as the load-bearing skeleton of the module. The inner supporting beams are arranged in a cross or mesh structure inside the square outer frame to support the plant growth substrate layer 2-4 and provide an installation surface. The buoyancy units are preferably enclosed floats or buoy boxes, symmetrically fixed in pairs at the bottom of the square outer frame, allowing the module to float stably in the water, forming a spatial distribution with the upper part above the water surface and the lower part below. Perforated fixing seats 2-72 are provided at the lower edges of the two opposite side walls of the square outer frame for installing flexible connection components 2-7 to achieve detachable connections between modules.

[0054] The plant growth substrate layer 2-4 is located on the upper part of the floating frame 2-2 and above the water surface. Preferably, it is a detachable planting tray. The interior of the planting tray includes, from top to bottom, a plant layer, a planting soil substrate layer, and a filter layer. The filter layer is located at the bottom of the plant growth substrate layer 2-4 (as the bottom layer) and is used to intercept suspended solids and form seepage channels. The edge of the plant growth substrate layer 2-4 is connected and fixed to the inner support beam of the floating frame 2-2 by bolts / clips for easy replacement or maintenance.

[0055] The biomimetic porous underwater ecological habitat unit 2-3 is located below the water surface at the lower part of the floating frame 2-2. It is preferably a box-type or block-type porous structure with a rough outer surface and uniformly distributed through holes. The biomimetic porous underwater ecological habitat unit 2-3 also has interconnected habitat cavities and flow channels. The habitat cavities form a habitat space for aquatic organisms, and the flow channels connect with the seepage channels of the plant growth substrate layer 2-4, thus forming a continuous water flow path from top to bottom. The biomimetic porous underwater ecological habitat unit 2-3 is preferably fixed to the bottom of the floating frame 2-2 by a hoisting connector or a support connecting plate, and can be quickly replaced using detachable fasteners (such as threaded hooks + straps, support plates + threaded parts, etc.).

[0056] The sensing component 2-5 is preferably installed on the side or upper support of the floating frame 2-2, and is connected to the control module 1-3 in the shore base 1-1 via a waterproof cable to feed back the data signals measured in real time by the sensing component 2-5 to the control module 1-3. The sensing component 2-5 may include one or more of the following: water quality sensor, water level sensor, flow velocity sensor, attitude sensor, and force sensor. The water quality sensor may be arranged in the water area near the water passage, the water level sensor and flow velocity sensor may be arranged on the water-facing side of the module, and the attitude sensor and force sensor may be arranged on the floating frame 2-2 or on the side wall adjacent to the flexible connection component 2-7 to obtain more representative module attitude or connection force signals. For ease of assembly and maintenance, the sensing component 2-5 is preferably fixed to the module body (floating frame 2-2) by bolts and connected by a pluggable waterproof connector. In addition, as needed, micro pumps, aerators and corresponding pipelines and electrically controlled valves can be arranged on the floating frame 2-2. The micro pumps, aerators and electrically controlled valves are respectively connected to the control module 1-3 and the power supply unit 1-4.

[0057] The self-powered unit 2-6 is preferably located above the plant growth substrate layer 2-4 or on the upper surface of the floating frame 2-2 (e.g., directly fixed to the surface of the floating frame 2-2 to form an installation area), and is composed of photovoltaic modules. The output end of the self-powered unit 2-6 is electrically connected to the sensing component 2-5 and the power supply unit 1-4 in the shore base 1-1 via waterproof cables, respectively, to supply or supplement power to the electrical load of the module and the electrical load of the shore base. The self-powered unit 2-6 is preferably fixed to the floating frame 2-2 using a detachable mounting base (such as a support frame, support platform, etc., with threaded or snap-fit ​​connections) for easy maintenance and replacement.

[0058] In one alternative embodiment, the outer surface of the biomimetic floating island module 2-1 (preferably the outer surface of the floating frame 2-2 or the outer surface of the biomimetic porous underwater ecological habitat unit 2-3) is provided with a self-healing coating (preferably a UV-triggered microcapsule self-healing coating system, such as epoxy resin and cationic photoactivator encapsulated in SiO2 microcapsules and dispersed in the coating matrix; after microcracks are generated in the coating, the microcapsules rupture and release the repair agent, which undergoes cationic polymerization and curing under UV irradiation to achieve crack filling and repair; see the published literature UV-Triggered Self-Healing of a Single Robust SiO2 Microcapsule Based on Cationic Polymerization for Potential Application in Aerospace Coatings). The triggering light source can be set on the upper part of the module or near the shore base 1-1, facing the self-healing coating, and electrically connected to the control module 1-3 and the power supply unit 1-4, for use in improving durability through self-healing coating repair when needed; this structure does not affect the disassembly and replacement of the module.

[0059] Through the above structural arrangement, when the biomimetic floating island module 2-1 floats in the water, it forms a spatial distribution with the upper plant growth substrate layer 2-4 above the water surface and the lower biomimetic porous underwater ecological habitat unit 2-3 below the water surface. The modules are connected in an array through flexible connecting components 2-7, which facilitates the continuous arrangement along the edge of the embankment to form a biomimetic floating island module array. This allows the system to remain close to the bank or move outward under the influence of water level fluctuations and hydrodynamic forces, and to continuously perform the comprehensive functions of erosion prevention, wave dissipation and water purification.

[0060] like Figure 3(As shown by rotating the view 180° from bottom to top), the flexible connecting component 2-7 adopts a strip-type flexible connecting structure, including: a connecting strip 2-71, a perforated fixing seat 2-72, a clamping locking fastener 2-73, and a tensioning limiting component 2-74. The connecting strip 2-71 is a flat strip-shaped component. The middle section of the connecting strip 2-71 spans the gap between the side walls of the two biomimetic floating island modules 2-1 to be connected and is fixed to the outer edge of the two modules by the perforated fixing seat and the clamping locking fastener, forming the strip-shaped appearance shown in the figure. The connecting strip 2-71 is preferably a composite elastomer strip, including an outer elastic wear-resistant layer and a reinforcing core layer arranged along the length direction, which is used to limit the maximum tensile amount and improve fatigue resistance. Perforated mounting bases 2-72 are fixedly installed at the lower edge of the floating frame 2-2 of two adjacent biomimetic floating island modules 2-1 (preferably with a transverse groove on the lower edge of the floating frame 2-2 to facilitate the fixed installation of the perforated mounting bases 2-72). The perforated mounting bases 2-72 have slots to accommodate the end of the connecting strap 2-71 and provide guidance. A clamping locking fastener 2-73 is installed at the slot of the perforated mounting base 2-72, preferably a combination of a clamping plate and a fastening bolt, to clamp and lock the connecting strap 2-71 onto the perforated mounting base 2-72: the clamping plate covers the slot and is connected to the perforated mounting base 2-72 by the fastening bolt, clamping and locking the end of the connecting strap 2-71 within the slot to achieve an anti-detachment connection. Tensioning limiter 2-74 is provided on one side of the perforated fixing seat 2-72, preferably a ratchet tensioner, for applying pre-tension to the connecting belt 2-71; in addition, a limit block or limit hole can be provided on the perforated fixing seat 2-72 to limit the maximum relative displacement of two adjacent modules or limit the maximum outward turning angle of the connecting belt 2-71, so as to avoid excessive stretching or derailment of the belt.

[0061] The assembly of the flexible connection components 2-7 is preferably performed in the following order:

[0062] 1) Install perforated fixing bases 2-72 on the lower edge of the floating frame 2-2 of the two biomimetic floating island modules 2-1 to be connected, and fix them by welding;

[0063] 2) Insert one end of the connecting strip 2-71 into the slot of the fixed seat 2-72 with holes, and fold the end of the strip back to form a folded section; cover the clamping plate with the slot and tighten the fastening bolts so that the end of the strip is clamped and locked in the slot;

[0064] 3) Insert the other end of the connecting strap 2-71 into the perforated fixing seat 2-72 in the same way and fold it back to clamp and lock it in place;

[0065] 4) Apply pre-tension to the connecting belt 2-71 by using the tensioning limiter 2-74, so that the middle of the connecting belt fits against the outer edge of the two modules and spans the gap between the modules. Then lock the tensioning limiter 2-74 to complete the assembly.

[0066] 5) Check the fit between the limit blocks / limit holes to ensure that when adjacent modules are relatively displaced, the connecting strip 2-71 will elastically deform within the allowable range without detaching from the groove.

[0067] Through the above structure and assembly method, when adjacent biomimetic floating island modules 2-1 generate relative displacement or swing under hydrodynamic action, the connecting belt 2-71 undergoes elastic bending and limited stretching, and the energy is buffered and dissipated through material damping. At the same time, under the action of the reinforcing core layer and the tensioning limiter 2-74, the maximum displacement is limited and the connecting belt 2-71 is prevented from derailing, thereby improving the array connection reliability and impact resistance.

[0068] In addition, in some embodiments, the shore base 1-1 is also provided with a landscape interactive output unit 1-5 that is communicatively connected to the control module 1-3 and electrically connected to the power supply unit 1-4. The landscape interactive output unit 1-5 is preferably a display screen, which can be used to visualize the real-time data (system operating status and / or water quality status) collected by the control module 1-3.

[0069] Application Example 1: Ecological Corridor Model Along Urban Riverbanks

[0070] This application example demonstrates a further refinement of the structure based on Embodiment 1.

[0071] like Figure 1 As shown, under normal operating conditions of urban waterways, the biomimetic floating island module array is arranged along the edge of the embankment. The array is connected to the bank base 1-1 via an anchoring-deployment mechanism 1-2. The deployment component 1-22 is set at the first cable deployment limit position (retraction position), so that the length of the traction cable deployed is the first cable deployment length, thereby arranging the biomimetic floating island module array close to the edge of the embankment to form a continuous ecological corridor interface close to the bank.

[0072] Each biomimetic floating island module 2-1 has a floating frame 2-2 that provides buoyancy support, allowing the plant growth substrate layer 2-4 to be above the water surface, facilitating the planting of wetland or emergent plants. The biomimetic porous underwater ecological habitat unit 2-3 is located below the water surface. Its porous and rough outer surface and evenly distributed pores disturb the near-shore water flow and reduce the peak near-wall flow velocity, thus providing scour protection. Its internal interconnected habitat cavity also provides a three-dimensional habitat space for fish, shrimp, benthic organisms, etc. The flow channel connects with the seepage channel of the plant growth substrate layer 2-4 to form a vertically connected water passage. The plant growth substrate layer 2-4 is preferably a layered structure, including a plant layer, a planting soil substrate layer, and a filter layer from top to bottom. The filter layer connects with the biomimetic porous underwater ecological habitat unit 2-3 to form a water passage for filtering, adsorption, and biodegradation purification of the water.

[0073] Sensing components 2-5 are installed near the floating frame 2-2 or the shore base 1-1 to collect signals such as water quality, water level / flow velocity, and attitude / force, and transmit them to the control module 1-3 via signal connection. A self-powered unit 2-6 is installed on the top or side of the module, preferably composed of photovoltaic modules, and its output is electrically connected to the power supply unit 1-4 to achieve energy storage and power distribution.

[0074] In this application example, control module 1-3 can be selected as an industrial-grade controller or programmable logic controller (PLC), such as the Siemens S7-1200 series (CPU 1212C / CPU 1214C) or an equivalent industrial controller. Control module 1-3 can be electrically connected to the drive component of anchor-retractor mechanism 1-2 through digital output ports or relay output ports, and can be signal connected to sensing component 2-5 through analog input ports or communication interfaces. Power supply unit 1-4 can optionally include a solar / multi-source energy controller and a battery pack, for example, using an MPPT solar charge / discharge controller (such as the Victron Energy SmartSolarMPPT series or equivalent products) and a lithium iron phosphate battery pack (12V / 24V / 48V system optional) to form a power supply and distribution unit. Power supply unit 1-4 supplies power to control module 1-3, sensing component 2-5 and execution load through power output terminals. The winch of the take-up and release assembly 1-22 can be a DC electric winch or a small electric winch, such as a 12V / 24V DC electric winch (rated traction force of 0.5~2t optional) or a 220V small electric winch; the forward and reverse rotation of the winch is controlled by the control module 1-3 via a relay module or a motor driver, and its traction cable is preferably a stainless steel wire rope or a high-strength synthetic fiber rope, which is guided by the guide component 1-21 and then connected to the traction connector. Optional sensor components 2-5 include: water quality sensors (such as dissolved oxygen, turbidity, conductivity / temperature, etc.), such as Atlas Scientific dissolved oxygen and conductivity probes or equivalent water quality sensors; water level sensors, such as ultrasonic level gauges (such as Pepperl+Fuchs UC series or equivalent products) or submersible hydrostatic level gauges; flow velocity sensors, such as electromagnetic flow meters or Doppler flow meters; attitude and force sensors, such as IMU attitude modules (such as Bosch BNO055 or equivalent products); and tension / load sensors (S-type tension sensors, with the range selected according to the cable design tension). The above sensors can be connected to control modules 1-3 via interfaces such as 4-20mA, 0-10V, or RS485 (Modbus).

[0075] Through the above structural arrangement, this application example forms a continuous ecological corridor interface in a shoreline state, and also has the effects of reducing nearshore hydrodynamic disturbance and scouring, constructing water purification channels and creating habitats.

[0076] Application Example 2: Flood Season Outward Wave-Dissipating Buffer Zone Model

[0077] This application example demonstrates a further refinement of the structure based on Embodiment 1.

[0078] During flood season or when strong winds and waves enhance hydrodynamic conditions, the deployment and take-up components 1-22 can be adjusted to the second cable release limit position (unwinding position), so that the length of the traction cable released is the second cable release length, thereby moving the biomimetic floating island module array relative to the embankment to form an offshore buffer zone; when the working condition ends, the deployment and take-up components 1-22 can be returned to the first cable release limit position (winding position), so that the array returns to the form of an ecological corridor close to the shore.

[0079] In the outward-moving arrangement, the biomimetic floating island module array forms a buffer interface in front of the shoreline. Waves or flood peaks interact with the array before reaching the shoreline, thereby reducing the hydrodynamic energy density at the shoreline. The flexible connection component 2-7 between adjacent modules allows the array to oscillate under impact and dissipates energy through the connecting belt 2-71. At the same time, the maximum sway angle is limited by the perforated fixing seat 2-72 and the clamping locking fastener 2-73, and the anti-detachment locking is achieved by the tensioning limiter 2-74. The porous and rough outer surface and uniform through-hole structure of the biomimetic porous underwater ecological habitat unit 2-3 further generate disturbance and energy dissipation, weakening the peak near-shore flow velocity and turbulent scouring capacity, thereby improving the wave dissipation and scouring effect in the outward-moving arrangement.

[0080] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A modular biomimetic floating island system with scour protection function, characterized in that, It includes an anchoring-deployment mechanism (1-2) and a biomimetic floating island module array (2-0). The anchoring-deployment mechanism (1-2) includes a guide component (1-21) and a deployment assembly (1-22); the guide component (1-21) includes a guide pulley and a guide rail, the guide rail is fixedly installed on the shore wall in the horizontal direction, and the guide pulley is slidably mounted on the guide rail; the deployment assembly (1-22) includes a winch and a traction cable, the winch is connected to the bionic floating island module array (2-0) through the traction cable, and the traction cable is wound around the guide pulley; The biomimetic floating island module array (2-0) is composed of several biomimetic floating island modules (2-1) connected by flexible connecting components (2-7); the biomimetic floating island module (2-1) includes a floating frame (2-2), a biomimetic porous underwater ecological habitat unit (2-3), and a plant growth substrate layer (2-4); the floating frame (2-2) is equipped with a buoyancy unit, which allows the floating frame (2-2) to float on the water surface; the biomimetic porous underwater ecological habitat unit (2-3) is connected to the bottom of the floating frame (2-2), and the biomimetic porous underwater ecological habitat unit (2-3) is a porous structure with a habitat cavity and a flow channel inside; the plant growth substrate layer (2-4) is located above the floating frame (2-2), and the plant growth substrate layer (2-4) is connected to the flow channel through a seepage channel; The flexible connection assembly (2-7) includes a connecting belt (2-71), a perforated fixing seat (2-72), a clamping locking fastener (2-73), and a tensioning limiting member (2-74). The perforated fixing seat (2-72) is mounted on the side wall of the bionic floating island module (2-1). The connecting belt (2-71) is connected between the perforated fixing seats (2-72) of the two bionic floating island modules (2-1) and fixed by the clamping locking fastener (2-73). The tensioning limiting member (2-74) is provided on the bionic floating island module (2-1) and is used to apply pre-tension to the connecting belt (2-71).

2. The modular biomimetic floating island system with scour protection function according to claim 1, characterized in that, The biomimetic porous underwater ecological habitat unit (2-3) is connected to the bottom of the floating frame (2-2) by detachable fasteners, so that the biomimetic porous underwater ecological habitat unit (2-3) is located underwater; The porous structure has uniformly distributed through holes, and the surface of the porous structure is a rough surface. The connected habitat cavity and the flow channel are interconnected.

3. The modular biomimetic floating island system with scour protection function according to claim 1, characterized in that, The plant growth substrate layer (2-4) is fixed above the floating frame (2-2) by threaded parts and / or fasteners, so that the plant growth substrate layer (2-4) is located on the water surface; The plant growth substrate layer (2-4) includes a plant layer, a planting soil substrate layer and a filter layer stacked from top to bottom. The filter layer is the bottom layer close to the floating frame (2-2), and the seepage channel is formed in the filter layer.

4. The modular biomimetic floating island system with scour protection function according to claim 1, characterized in that, The biomimetic floating island module (2-1) also includes a sensing component (2-5) and a self-powered unit (2-6) installed on the floating frame (2-2). The sensing components (2-5) include at least one of a water quality sensor, a water level sensor, a flow velocity sensor, an attitude sensor, and a force sensor; The self-powered unit (2-6) includes a photovoltaic module and is electrically connected to the sensing module (2-5).

5. The modular biomimetic floating island system with scour protection function according to claim 4, characterized in that, The biomimetic floating island module (2-1) also includes a micro pump and an aerator installed on the floating frame (2-2); The self-powered unit (2-6) is electrically connected to the micro pump and the aerator.

6. A modular biomimetic floating island system with scour protection function according to claim 1, characterized in that, The modular biomimetic floating island system also includes a shore-side base (1-1). The shore-side base (1-1) includes a control module (1-3) and a power supply unit (1-4). The control modules (1-3) are communicatively connected to the guide rail and the winch; The power supply unit (1-4) is electrically connected to the guide rail and the winch.

7. The modular biomimetic floating island system with scour protection function according to claim 1, characterized in that, The outer surfaces of the floating frame (2-2) and / or the biomimetic porous underwater ecological habitat unit (2-3) are provided with a self-healing coating; The modular biomimetic floating island system also includes a trigger light source positioned toward the self-healing coating.

8. The modular biomimetic floating island system with scour protection function according to claim 1, characterized in that, The clamping fastener (2-73) includes a clamping plate and a fastening bolt; the clamping plate presses the connecting strip (2-71) onto the perforated fixing seat (2-72), and the fastening bolt locks the clamping plate and the perforated fixing seat (2-72).

9. The modular biomimetic floating island system with scour protection function according to claim 8, characterized in that, The perforated mounting base (2-72) has a slotted hole; One end of the connecting strip (2-71) is inserted into the strip hole and then folded back to form a folded section. The clamping plate presses the folded section at the strip hole and locks the clamping plate and the fixed seat with hole (2-72) with the fastening bolt, so that the connecting strip (2-71) is clamped and locked.

10. A modular biomimetic floating island system with scour protection function according to claim 1, characterized in that, The tensioning limiting component (2-74) is a ratchet tensioner.

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