132 results about "Wave resistance" patented technology

The invention provides an all-dimensional multi-layer connecting belt lifting anti-storm deep sea net cage, and relates to the technical field of aquaculture equipment.The all-dimensional multi-layer connecting belt lifting anti-storm deep sea net cage comprises a net cage body and a positioning mechanism used for positioning and installing the net cage body, and the positioning mechanism comprises an annular top frame and a top air bag arranged on the top frame and used for enabling the top frame to float on the water surface; the top frame is connected with a plurality of anchor bodies through a plurality of anchor ropes, each anchor body is anchored to the seabed, a plurality of rails are vertically arranged at the bottom of the top frame, and the rails are arranged in an annular array; the net cage body is arranged between the rails and can move up and down along the rails within the length range of the rails. The net cage aims to solve the technical problems that an existing deep sea net cage is poor in wind wave resistance and prone to damage, the breeding space is of a single-layer structure, the utilization rate is low, and surface environment risks cannot be effectively avoided.

The utility model discloses an unmanned ship rollover prevention device which comprises two rollover prevention assemblies of the same structure, the two rollover prevention assemblies are symmetrically and fixedly installed on the two side portions of a ship body, each rollover prevention assembly comprises an installation base, an extension module and a driving module, the installation bases are fixedly installed on the side portions of the ship body, and the extension modules are fixedly installed on the side portions of the ship body. A mounting groove is formed in the mounting base, one end of the extension module is fixedly mounted in the mounting base, the extension module is located in the mounting groove, and the driving module is mounted in the ship body and connected with the extension module; according to the anti-rollover device for the unmanned ship, the anti-rollover assemblies are arranged on the two sides of the ship body correspondingly, when the anti-rollover assemblies are unfolded, the buoyancy of the ship body can be effectively enhanced, meanwhile, the base contact area of the ship body and the water surface is enlarged, the overall supporting area of the ship body is enlarged, and the wind wave resistance is improved; the situation that the ship body rolls over due to overlarge storm waves is effectively reduced, then the safety of the ship body is effectively guaranteed, and the possibility that the ship body is damaged is reduced.

The invention discloses a large seaplane integrated with a distributed electric propulsion technology and a propulsion method, and relates to the technical field of seaplane. Comprising a fuselage, a left wing and a right wing are arranged on the two sides of the fuselage respectively, and a V-shaped hull is arranged at the lower end of the fuselage; and a T-shaped empennage is arranged at the tail part of the fuselage. Through the synergistic effect of the design of the V-shaped ship body and the distributed propulsion system, the whole ship body makes contact with the water surface to provide sufficient buoyancy at the low speed, only the main sliding face makes contact with the ship body to form an air layer at the high speed, and the air film drag reduction effect of a propeller at the bottom of the ship body is matched, so that the water resistance is reduced by 35%-50%, and the draft is reduced by 40%-60% along with speed increase; the problems that a traditional seaplane is large in water resistance and difficult to leave water are effectively solved, meanwhile, the left buoy and the right buoy are in linkage with the attitude control system, wave disturbance can be counteracted in real time, the transverse inclination angle is controlled within 1 degree, the wave resistance is improved to be capable of coping with waves with the height of 1.5 m, and the defects that a traditional seaplane is poor in wave resistance and has strict requirements for taking-off and landing water areas are overcome.

The invention relates to a marine ship carbon emission accounting method and device based on interpretable residual learning, and a medium, and the method comprises the steps: complementing the missing of static parameters through ship IMO numbers, carrying out the unified coding and unit standardization of marine log dynamic data, combining the host power and oil consumption dual-path verification of the data validity, and carrying out the calculation of the marine ship carbon emission. After abnormity is cleaned, dynamic, static and meteorological data are fused to construct a carbon emission database; calculating the comprehensive action of wind resistance, still water resistance and wave resistance by applying a fluid mechanics law, generating a physically-driven carbon emission reference value, and synchronously extracting key characteristics such as navigational speed, wave height and ship length; with reference values and features as samples, uncovered dynamic features are learned through a multi-layer residual block chain structure, and a carbon emission accounting model is trained in combination with a cross validation and regularization mechanism; and finally realizing high-precision carbon emission prediction based on the training model. Compared with the prior art, the method has the advantages that the residual network is comprehensively used, interpretability analysis is achieved, and high-precision prediction of ship carbon emission is achieved.

The present invention discloses an alternating step-by-step deep-sea mining system and method based on a clean energy platform, which relates to the field of deep-sea mining technology. The platform includes a main hull, a mining system, an anchoring system, and an electric propulsion device. A workshop is provided in the middle of the main hull. The mining system includes several mining vehicles, which are placed in the workshop. The anchoring system includes a winch, an anchor cable compartment, an anchor cable, and an anchor head. Winches are provided at the four corners of the top of the main hull. An anchor cable compartment is provided below each winch. One end of the anchor cable is connected to the winch, and the other end is connected to the anchor head. The electric propulsion device is provided at the front and rear ends of the bottom of the main hull. Compared with traditional deep-sea mining platforms, the anchoring system and electric propulsion device proposed in the present invention can make the platform advance in an alternating step-by-step manner through the cooperation of the two, and has better wind and wave resistance capabilities, while saving energy.

The invention relates to the technical field of disaster prevention and control engineering, discloses a glacial lake surge channel type energy dissipation and wave resistance tough structure and a layout method, and aims to solve the technical problems that the peak clipping capacity of head wave surge is insufficient, the structural stability depends on a rigid foundation, the energy clipping direction depends strongly and the like under the glacial lake working condition in an existing surge energy dissipation technology. The ice lake surge channel type energy dissipation and wave resistance tough structure comprises floating type wave dissipation elements, transverse array connecting cables and lateral restraining assemblies, the multiple floating type wave dissipation elements are connected in series through the transverse array connecting cables to form a transverse array, and the lateral restraining assemblies are arranged at the two ends of the transverse array connecting cables correspondingly. The floating type wave dissipation element is sequentially provided with an annular water-permeable flow guide energy dissipation crown, a water absorption-release elastic energy absorption array and a flexible air bag floating supporting assembly from top to bottom in the vertical direction, and a double-stone anchoring system is connected to the lower portion of the floating type wave dissipation element and comprises overhanging pumice stone, bottom anchoring stone and a vertical stroke limiting ring.

The invention relates to the technical field of oyster rafts, and discloses a manufacturing method of an HDPE (high-density polyethylene) tube oyster raft, which comprises the following steps: step S1, preparing materials; s2, assembling the frame main body; s3, the pipe fitting is subjected to polishing treatment; s4, performing hot melting welding; step S5, mounting a buoy; s6, transverse pipe fittings are laid; and S7, reinforcement treatment is conducted. According to the manufacturing method of the HDPE pipe oyster raft, by implementing standardized material preparation, frame main body assembly, pipe fitting polishing treatment, hot melting welding, buoy installation, transverse pipe fitting laying and reinforcement treatment processes, the problems of low pipe fitting connection precision, insufficient frame structure stability and poor wind and wave resistance caused by operation depending on experience in existing HDPE pipe oyster raft manufacturing are solved; by adopting the HDPE material, the problems of corrosion, heavy weight and high maintenance cost of the traditional wood and metal oyster rafts are solved, so that the quality consistency, the structural reliability and the service life of the oyster rafts are ensured.

The application discloses a kind of water pollution on-line monitoring equipment, it is related to water detection technical field, including floating island and monitoring mechanism, sample reservation mechanism is arranged in floating island, floating island includes float, balance cover and upper support, float is arranged with air chamber, equipment cabin and sample reservation chamber, monitoring mechanism includes detector and monitoring probe, detector is installed in equipment cabin, monitoring probe is fixedly installed at the bottom of float, sample reservation mechanism includes rotary table, test tube rack, negative pressure test tube, sampling station, puncture needle, suction hose and telescopic cylinder, sample reservation mechanism is installed in sample reservation chamber.The application has the advantages of automatic sample reservation, active posture balance, sample identification and light protection, autonomous position adjustment, solves the problem that existing float type monitoring equipment cannot reserve sample in time, weak wind and wave resistance, maintenance difficulty and lack of dynamic control ability.

The invention discloses an inflatable salt pond plastic straw mat self-adaptive buoy chain with preset deflection, which belongs to the technical field of salt pond plastic straw mat retraction and release, and at least comprises a buoy chain formed by axially splicing two buoy monomers through a splicing mechanism; the buoy chain has preset deflection protruding towards the traction direction of the plastic straw mat under the state of no external force; an inflation sealing cavity is formed in each buoy single body. Traction connecting parts are arranged at the two ends of the buoy chain and used for being connected with a traction rope; a plastic cover fixing part is arranged on the buoy chain and used for being fixedly connected with a plastic cover; when the traction connecting part is pulled in the traction direction of the traction rope, the preset deflection is eliminated, so that the buoy chain tends to be in a linear state; and after the pulling force of the pulling rope is relieved, the buoy chain automatically recovers the preset deflection. Through the design of the preset deflection structure and the inflation sealing cavity, the buoy chain has the self-adaptive bending recovery capacity, so that the plastic straw mat collecting and releasing efficiency is improved, the wind and wave resistance is enhanced, and the service life is prolonged.

The utility model discloses a novel oyster row, and belongs to the technical field of fresh oyster breeding. The novel oyster row comprises a plurality of floating pipes, a plurality of square oyster row rods and breeding units arranged between the floating pipes and the oyster row rods. Buoyancy is provided through the floating pipe, the oyster raft rod is fixedly connected with the floating barrel through the first connecting piece, the lower portion of the first connecting piece is an arc face, the upper portion of the first connecting piece is a first profile fixing groove, the contact area of the oyster raft rod and the floating pipe is increased, and stability of the oyster raft is improved. Meanwhile, cross connection between the square pipes is achieved through the second connecting pieces, the stability of the oyster cage frame is improved, the oyster cages are prevented from being gathered, the storm-proof performance of the oyster row is further improved, and the overall stability of the oyster row is improved.

The invention provides an aquaculture net cage based on a floating fan, which is characterized in that the floating fan is nested on a central connecting cylinder of a semi-submerged platform, the aquaculture net cage is mounted at the lower part of the triangular semi-submerged platform, and the semi-submerged platform is a triangular semi-submerged platform and comprises a fan platform central column, three buoys, fan platform corner pile columns and truss leg columns, each of the three buoys is mounted at the top of the truss leg column, and the fan platform central column is positioned at the central point of a triangle formed by the three buoys; the aquaculture net cage comprises pulleys, sliding rails and a net, the net is a triangular prism-shaped net, telescopic rods are installed on the upper half portions of the three side edges of the triangular prism-shaped net, the sliding rails are installed on the lower half portions of the three side edges of the triangular prism-shaped net, and the triangular prism-shaped net is connected with the pulleys on the outer sides of the buoys through the sliding rails. By means of the scheme, the technical problems that existing deep sea breeding is difficult in power supply and poor in wind and wave resistance are solved, and the technical effects that breeding net cages are simply and efficiently arranged, and the requirement for rapid and simple power supply can be met are achieved.

The invention discloses a test device for two-degree-of-freedom cooperative forced vibration of an offshore floating fan, and the device comprises a floating fan model, a pitching forced vibration device, a surging forced vibration device, a cooperative motion support frame, a cooperative control system, and an aerodynamic load measurement device. The pitching-surging coupled motion state of a floating fan model in a marine environment is simulated, and measurement of parameters such as aerodynamic characteristics, dynamic response and wake wind speed of the floating fan is realized under the condition of no pool. The double-degree-of-freedom forced vibration testing device is low in manufacturing cost, compact in structure and flexible to adjust, double-degree-of-freedom forced vibration of the floating type draught fan is achieved through a relatively small testing device, the multi-working-condition and high-frequency testing requirements in the research and development process of the offshore floating type draught fan are met, the research and development cost and the test development difficulty are effectively reduced, and the testing efficiency is improved. And a reliable test device is provided for structural design, blade optimization and wind wave resistance improvement of the floating fan.

The utility model relates to a bulbous bow structure of a steamship. The bulbous bow solves the problems that in the prior art, a bulbous bow is large in traveling wave resistance and poor in stability. The bulbous bow comprises a bulbous bow body, overflowing assemblies are arranged on the two sides of the bulbous bow body, sealing cover plate assemblies are arranged on the outer walls of the overflowing assemblies in the circumferential direction, a movable load control mechanism is arranged in the bulbous bow body, and buoyancy supporting devices which can stretch under pressure are arranged on the two sides of the bottom of the bulbous bow body. The bulbous bow has the advantages that through linear optimization of the bulbous bow body, wave-making resistance is reduced, the purposes of reducing oil consumption and reducing carbon emission are achieved, and the sinking and floating stability of the bulbous bow body is effectively ensured.

The application discloses a ship body and a deep V-shaped corner semi-small water plane catamaran, and belongs to the technical field of ships. The ship body comprises a first diving body, a second diving body, a first anti-rolling bilge keel, a second anti-rolling bilge keel, a first deadwood structure, a second deadwood structure and a V-shaped structure, the bottom longitudinal section shape of the first diving body and the second diving body is a V-shaped structure. The two included angle sides of the V-shaped structure are flat plate lines, the wave making resistance is small, and the ship body is beneficial to rapid navigation; the comprehensive reaction force of the first anti-rolling bilge keel and the second anti-rolling bilge keel will force the ship body to be righted and stand upright, the wind and wave resistance of the ship body is enhanced, and the sea keeping quality, the seaworthiness and the riding comfort of the ship are improved; a propeller tunnel is formed between the bottom of the stern of the ship body and the tail of the deadwood structure, the ship body has the soft beach landing ability during the ebb tide, and the propeller and the rudder blade are protected.

The utility model relates to the technical field of aquaculture, in particular to a connecting piece and an aquaculture row. The aquaculture row comprises the connecting piece. The connecting piece comprises a main body, a limiting piece, a first fastening piece, a second fastening piece and a third fastening piece; the number of the limiting pieces is at least two, the main body is clamped between the two limiting pieces, and each limiting piece is matched with the main body to form a containing space; the first fastener penetrates through the accommodating space; the second fastening piece is wound on the limiting piece; and the third fastening piece is respectively sleeved on the first fastening piece and the second fastening piece so as to lock the two limiting pieces to form an integrated structure with the main body. According to the connecting piece provided by the embodiment of the utility model, the conditions of stress concentration and connection looseness are not easy to occur, and a stress frame formed by combining the connecting piece with the transverse rods and the longitudinal rods is higher in structural stability and better in wind and wave resistance.

The utility model relates to the technical field of liquid storage tank wave resistance, and discloses a wave-resistant liquid storage tank with a built-in partition plate, which comprises a base, a first wave-resistant mechanism is arranged at the top of the base, a second wave-resistant mechanism is arranged in the first wave-resistant mechanism, and the first wave-resistant mechanism comprises a liquid storage tank body. The device comprises a liquid storage tank body, the liquid storage tank body is fixedly connected to the top of a base, a first wave-proof plate is fixedly connected to the inner side of the liquid storage tank body, and a fixing seat is fixedly connected to the left side of the first wave-proof plate. An elastic buffer structure is formed under the action of a first telescopic rod, a first spring, a buffer plate and a connecting shaft, when liquid surges and impacts the buffer plate, the first telescopic rod can slide in a fixing sleeve and compress the first spring at the same time, the impact force of surges can be absorbed and dispersed through elastic deformation of the first spring, direct impact of liquid on the wave-proof plate and the tank body is reduced, and the service life of the tank body is prolonged. Therefore, the tank body structure is protected.

The invention discloses a wind wave energy integration system combining an oscillating water column and a floating fan, and relates to the technical field of wind wave energy integration utilization, comprising: a floating foundation module which is of a semi-submersible triangular truss structure and is fixed through an anchoring system; the oscillating water column energy conversion module is arranged on the outer side of the buoyancy chamber, comprises a gas water chamber, an adjustable guide plate and a bidirectional pneumatic turbine, and is matched with a permanent magnet synchronous generator; the floating type fan module is arranged on the central truss and comprises a three-blade horizontal shaft fan, a hydraulic variable pitch system and a permanent magnet direct drive generator; the energy management module comprises a rectification unit, an inversion unit, a hybrid energy storage unit and a monitoring unit and is used for realizing smooth power output; the posture stabilizing module is provided with 4-6 hydraulic active stabilizing fins and a posture sensor, and the inclination angle of the floating body is controlled within + / -5 degrees. The energy utilization efficiency and the output stability are improved, the anti-storm capacity is enhanced, the anti-corrosion service life is prolonged, the cost is reduced, the device adapts to multiple sea conditions, and support is provided for large-scale development of storm energy.

This invention provides a deep-water steel pipe pile cofferdam and its construction method, belonging to the field of cofferdam technology. It includes an internal support structure, several piles, and several connecting structures. The connecting structures include a locking joint, a limiting joint, a locking head, a limiting head, and a drainage outlet. This deep-water steel pipe pile cofferdam and its construction method employs a simple locking joint and locking head combination to connect the piles together with limiting positions. Combined with the combination of the limiting head and limiting joint, the strength of the connecting structure is further enhanced, forming a triple limiting and triple waterproof structure. Combined with the hollow cavity for automatic drainage, this not only significantly improves the waterproof performance at the connection point but also effectively enhances the stability and wave resistance during pile sinking, as well as the stability and wave resistance of the cofferdam. While ensuring the convenience of construction materials and the construction period, it effectively improves the connection strength and sealing performance of the cofferdam connection, as well as the wave resistance during the cofferdam construction process, thus improving the smoothness and stability of the construction process.

The invention discloses a composite material offshore photovoltaic platform floating body module with a steel skeleton support, which comprises an external composite material floating body and an internal steel skeleton, the steel skeleton comprises a steel skeleton cross beam and a steel skeleton longitudinal beam, the steel skeleton longitudinal beam is provided with a plurality of lifting lugs, stand column flanges extending out of the composite material floating body are arranged on the side parts of the steel framework cross beams and the steel framework longitudinal beams; and the stand column flanges are provided or not provided with connecting lifting lugs. The floating photovoltaic platform capable of being applied to the sea is formed, and the problems that an existing platform is poor in wind and wave resistance, batch production and flexible reconstruction are achieved, and module collision protection is achieved after modules are flexibly connected are solved.

The application provides a wave resistance plate construction parameter determination method and a wave resistance plate construction method, and belongs to the technical field of wave resistance plate construction. The wave resistance plate construction parameter determination method is characterized by the following steps: simulating wave resistance plate parameter groups with different structural parameters and material parameters, obtaining the barrier frequency ranges of the parameter groups, and performing intersection calculation on the barrier frequency ranges and the frequency range of vibration waves propagating in a target area of soil, so as to determine the optimal wave resistance plate parameter group from the wave resistance plate parameter groups, and guide subsequent wave resistance plate construction processes according to the parameter group. The wave resistance plate construction process is scientifically and effectively guided, and the constructed wave resistance plate can fully isolate the propagation of vibration waves in the soil.

The application relates to the technical field of ocean wave power generation, and discloses a sea wave multi-stage power generation platform based on UHPC and FRP, which comprises a plurality of foundation pipe columns arranged in an array and a plurality of multi-stage transverse platforms arranged at intervals in the vertical direction, a plurality of penetrating holes are formed in the multi-stage transverse platforms, the plurality of foundation pipe columns are respectively arranged in the corresponding penetrating holes, a stator and a rotor are closed and arranged in the top end of the foundation pipe column, the rotor is in sliding fit with the stator, a sliding float is arranged on the outer wall of the foundation pipe column in a sliding mode, the sliding float is connected with the rotor in the foundation pipe column through an upwardly-extending external transmission frame, and a mooring mechanism is connected to the bottom end of the foundation pipe column. The power generation components are closed in the top end of the pipe column, the external transmission frame is used for transmitting the wave kinetic energy upwards, the core electrical components are prevented from being corroded by seawater, the wind and wave resistance is improved, and long-term stable power generation is guaranteed.

The application provides a bulk carrier main engine power prediction method and system, and relates to the technical field of green ships and intelligent shipping. The method realizes high-precision and high-robustness prediction of the bulk carrier main engine power through the following steps: sister ship operation big data collection preprocessing, Pearson correlation feature screening, wave resistance explainable separation based on the two-factor Froude method and the iteration of resistance and propulsion efficiency, fusion of SVM to build a physically mechanism-constrained grey-box prediction model, and comparison and optimization of a black-box model. The method has physical explainability, can meet the consistency verification of the Minimum Propulsion Power Guidelines, can be quickly modeled and calculated online in real time relying on conventional operation data, can be reused for the same series of ship types, and has outstanding engineering practicability and maritime compliance.

The invention provides an environment compatible type ecological submerged dike construction method suitable for pelagic coral island coast protection, and relates to the technical field of pelagic coral island coast protection and coral reef ecological restoration, and the method comprises the following steps: respectively obtaining terrain information, hydrodynamic information and ecological information of a target area; submerged dike structure information, submerged dike depth information and submerged dike material information are determined through numerical simulation analysis and a physical model test; and according to the submerged dike structure information, the submerged dike depth information and the submerged dike material information, constructing a submerged dike in the target area. The ecological submerged dike can be constructed on a narrow reef or a shallow reef slope, so that the marginal reef terrain with a reef crown structure is artificially reproduced, better wave dissipation and wave resistance are provided for the narrow, longitudinal and deep reef, meanwhile, a proper habitat is provided for marine organisms, and attachment and growth of the marine organisms are promoted.

The utility model discloses a novel electronic float connector, which comprises a connector internal tooth structural member and a connector external tooth structural member, the bottom end of the connector external tooth structural member is spirally embedded in the internal tooth structural member, the connector internal tooth structural member comprises a cylinder, the top end of the cylinder is provided with a circular ring, the bottom end of the cylinder is provided with an arc ring, and the circular ring is provided with an arc groove. The bottom end of the outer edge face of the cylinder and the outer edge face of the arc ring are jointly provided with a plurality of sinking grooves at equal intervals in an annular array around the axis of the cylinder and the outer edge face of the arc ring, the top end of the interior of each sinking groove is provided with a balancing weight, a connecting cylinder is constructed in the middle of the inner edge face of the cylinder, and the bottom end of the connecting cylinder is provided with a first sealing ring attached to the inner edge face of the cylinder. The fishing float has the advantages that the anti-storm capacity is high, the tightness and firmness of vertical connection and falling off are achieved, it is guaranteed that the whole concentricity of the fishing float is perfectly combined, and the concealment and the waterproofness are better; the problem that an existing fishing float still has defects in some fishing scenes is solved.

The utility model relates to the technical field of wave prevention and sand fixation, and discloses a coastal zone ecological protection wave prevention and sand fixation facility which comprises a dam, an extension slope is arranged on one side of the dam, and a protection structure used for wave prevention and sand fixation is arranged on one side of the dam. Through the arrangement of the protection structure, after waves enter the gravel filling area through the water permeable holes, the flow velocity of the waves is weakened, so that impact to a dam and erosion of reflected waves to a coast are reduced, meanwhile, the gravel can intercept silt and promote deposition, the wave-resisting and sand-fixing effects are achieved, and through the arrangement of the artificial fish reef and the ecological bricks, the sand-fixing effect is improved. A habitat of marine organisms is provided, ecological restoration is promoted, the stability of sediments is further enhanced, meanwhile, wave energy generated when waves impact the dam is reduced, on the whole, the facility integrates multiple functions of wave resistance, sand stabilization, ecological restoration and the like, the durability of the dam and the coast protection capacity are improved, and the facility is suitable for coast areas prone to erosion.

The application provides a multi-nutrition level mixed culture device for surface layer and bottom layer aquaculture species, which comprises four fixed piles, a fixed frame is fixedly installed between the top ends of the four fixed piles, longitudinal rods are fixedly arranged between the two sides of the fixed frame corresponding to the fixed piles, a transverse rod is fixedly arranged between the bottom ends of the left and right fixed piles, an adjusting mechanism is arranged on one side of the diagonal fixed piles, and a second lifting frame and a first lifting frame are arranged between the four fixed piles from bottom to top through the adjusting mechanism. The marine space can be fully utilized, the utilization rate of feed is improved, the wind and wave resistance is stronger, and the ecological culture of the surface layer and bottom layer aquaculture species is beneficial.

The utility model relates to the technical field of sea area culture, in particular to a submarine type round-head ship-shaped net cage which comprises a net cage main body, the net cage main body is arranged at one end of a submarine type bow main body, one end of the submarine type bow main body far away from the net cage main body is a round head, and the front side and the rear side of the submarine type bow main body are streamlined. A cavity is formed in the submarine type prow body and serves as a first liquid storage tank, an air compressor is fixed to one side edge of the first liquid storage tank, the output end of the air compressor is communicated with the first liquid storage tank, a first submersible pump is arranged at the bottom of the side edge of the submarine type prow body, an output opening of the first submersible pump is communicated with the first liquid storage tank, and a fourth one-way valve is arranged between the air compressor and the first liquid storage tank. The head of the submarine type prow body is arranged to be the round head, so that resistance of water flow to the net cage is reduced, impact force of waves to the net cage is effectively reduced, meanwhile, wave energy can be better dispersed when the submarine type prow body encounters stormy waves, direct impact is reduced, and the stormy wave resistance of the net cage is enhanced.

This invention relates to an amphibious, human-powered, electrically assisted, multi-functional tricycle, belonging to the field of transportation vehicles. It is a collection of inventions regarding tricycle structure, drive system improvements, and manufacturing methods. 1. It features a centralized control system with both land and water driving modes. 2. It utilizes human power, electric assistance, a self-generating mechanism, and an energy recovery device to form a low-carbon, green, and environmentally friendly drive system. 3. It uses composite materials and a composite molding method to create a sealed, waterproof, integrated vehicle-boat design. Foldable floating panels are designed on both sides of the vehicle body, with hidden airbags installed within them. This enhances the amphibious vehicle's buoyancy and wave resistance, while the foldable floating panel and hidden airbag design maintains a compact shape when the vehicle is on land, avoiding the air resistance and traffic control issues caused by the bulky shape of typical amphibious vehicles.

The invention belongs to the field of landscape floating islands, and discloses a river and lake water purification landscape floating island capable of being quickly assembled, which comprises a square floating block, four lock catch grooves, four lock catch cylinders, two first outer frame edges and two second outer frame edges, the automatic clamping and centering device for the planting pot further comprises four sliding assemblies, four cover plates, four limiting insertion plates, four limiting holes, two insertion connection protruding blocks, two butt joint bases, a plurality of outer frame protruding plates and a plurality of outer frame groove plates, and through cooperation of slope extrusion blocks of the four sliding assemblies and reset springs, stable clamping and automatic centering of the planting pot are achieved; through pre-splicing of the inserting convex blocks and the inserting grooves of the adjacent square floating blocks, the planting pots are pressed downwards to drive the sliding ends to be inserted into the locking holes to achieve automatic locking, and then through enclosure of the two first outer frame edges and the two second outer frame edges and matched positioning of the outer frame convex plates and the outer frame groove plates, rapid splicing of the floating island and the stability of the overall structure are effectively achieved; the floating island is convenient and efficient to assemble and high in wind and wave resistance, and the service life of the floating island is prolonged.