Wave energy power plant

Abstract

The application relates to a wave power generation device, which comprises a main float, an energy storage device arranged at the top of the main float, a power transmission sleeve containing multiple groups of power transmission lines in the output end of the energy storage device, a draft mechanism arranged at the bottom of the main float, and a power generation mechanism arranged at the outer side of the main float. The draft mechanism comprises sensing pieces arranged at four corners of the bottom of the main float respectively, a drainage piece arranged at the center of the bottom of the main float, and a pressure transmission channel arranged in the main float and communicating with the drainage piece and the sensing pieces at two ends respectively. The sensing piece comprises a pressure transmission cylinder fixedly connected to the bottom of the main float and a sliding ring slidingly connected to the outer side of the pressure transmission cylinder. The application realizes self-adaptive adjustment of the draft depth of the power generation device according to the fluctuation of waves, avoids damage of the oscillating float caused by excessive impact of the whole force during large waves, solves the problem of shallow draft and difficulty in obtaining power during small waves, and guarantees the stable energy capturing state of the oscillating float.

Description

Technical Field

[0001] This invention relates to the field of underwater unmanned vehicle technology, specifically to wave energy power generation devices. Background Technology

[0002] Wave energy, as a clean and renewable marine energy source, is widely distributed and abundant. Its corresponding wave energy power generation devices are widely used in distributed energy supply scenarios in nearshore waters, islands and reefs. They are also often used as supporting energy devices for underwater unmanned vehicles and other underwater operating equipment to provide continuous power support for these devices. The stable operation of these devices needs to adapt to the changes in wave undulations under different sea conditions in order to achieve continuous and efficient capture of wave energy.

[0003] In existing wave energy power generation devices, the draft of the core energy harvesting component (such as the oscillating float) is usually fixed. That is, after the device is deployed, the draft of the oscillating float remains in a preset state and cannot be adjusted according to the size of the waves during operation.

[0004] However, the energy capture components in existing power generation devices cannot adjust their draft according to the size of the waves during operation. When encountering large waves, the fixed deep draft will greatly increase the wave impact force on the oscillating float, which can easily cause deformation and damage to the float structure, reducing the operational reliability and service life of the device. When the wave fluctuations are small, the fixed shallow draft will result in insufficient effective contact area between the oscillating float and the waves, making it difficult to fully capture wave energy, resulting in low power generation efficiency, inability to ensure stable energy capture state of the device, and difficulty in adapting to complex and ever-changing marine wave environments. Summary of the Invention

[0005] The purpose of this invention is to provide a wave energy power generation device, which aims to improve the problem that the draft of the energy harvesting component of existing power generation devices is difficult to adaptively adjust with the size of wave fluctuations during operation.

[0006] The objective of this invention is achieved through the following technical solution: a wave energy power generation device, including a main float, an energy storage device is provided on the top of the main float, and a power transmission sleeve containing multiple sets of power transmission lines is provided at the output end of the energy storage device. A submersible is provided at one output end of the power transmission sleeve, a draft mechanism is provided at the bottom of the main float, and a power generation mechanism is provided on the outside of the main float. The draft mechanism includes sensors respectively located at the four corners of the bottom of the main float, a drainage device located at the center of the bottom of the main float, and a pressure transmission channel opened inside the main float, with the two ends of the pressure transmission channel connected to the drainage device and the sensors respectively. The sensing element includes a pressure-transmitting cylinder fixedly connected to the bottom of the main float. A sliding ring is slidably connected to the outer side of the pressure-transmitting cylinder, and a roller is provided between the sliding ring and the pressure-transmitting cylinder. Two floating rings are provided on the outer side of the sliding ring. A push plate is slidably connected to the inner side of the pressure-transmitting cylinder, and multiple magnetic blocks are provided on the outer side of the push plate and the inner side of the sliding ring at opposite positions. A reset spring is provided between the bottom of the push plate and the inner bottom of the pressure-transmitting cylinder.

[0007] As a further description of the above technical solution: The drainage component includes a drainage tank fixedly connected to the bottom of the main float. A pusher rod is provided between the drainage tank and the pressure transmission channel. A pressure plate is fixedly connected to the bottom of the pusher rod, and the outer side of the pressure plate is slidably connected to the inner side of the drainage tank. Multiple flow valves are provided on the outer side of the bottom of the drainage tank. A fixing ring is fixedly connected inside the flow valve. A sealing cylinder is slidably connected to the inner side of the fixing ring. Flow holes are provided at both ends of the sealing cylinder and both ends of the flow valve. A connecting spring is provided between both ends of the sealing cylinder and the fixing ring. As a further description of the above technical solution: The power generation mechanism includes multiple extension plates fixedly connected around the main float. A rotating component is provided at the other end of the extension plate. An energy-capturing component is provided at the bottom of the rotating component. A transmission component is provided on the outside of the energy-capturing component. A directional ball pile is provided at the top of the extension pile. An acceleration gear set that is connected to the directional ball pile is also provided on the outside of the main float. Multiple dual-shaft generators are provided inside the main float. The input end of the dual-shaft generator is connected to the output end of the acceleration gear set, and the output end of the dual-shaft generator is connected to the energy storage device. As a further description of the above technical solution: The rotating component includes a rotating pile fixedly connected to the other end of the extension plate, a rotating disk rotatably connected to the outside of the rotating pile, and a torsion spring provided between the rotating disk and the rotating pile. As a further description of the above technical solution: The energy harvesting component includes a connecting frame fixedly connected to the bottom of the rotating disk, an oscillating float rotatably connected to the outside of the connecting frame, an attraction plate at the rear end of the oscillating float, and a counterweight at the front end of the oscillating float. As a further description of the above technical solution: The transmission component includes a hinged post located on the outer side of the front end of the oscillating float, with a rack plate hinged to the other end of the hinged post. A limit post is fixedly connected to the outer side of the rotating disk, and the outer side of the rack plate is slidably connected to the inner side of the limit post. Two abutment plates are provided on one side of the rack plate. As a further description of the above technical solution: The deflection ball pile includes a fixed pile fixedly connected to the top of the extension plate, an inner ball rotatably connected between the two fixed piles, an outer ball shell sleeved on the outside of the inner ball, and a magnetic block two between the outer ball shell and the inner ball. A gear ring is fixedly connected to the outside of the outer ball shell, the gear ring meshes with the rack plate, and the two abutting plates abut against the two sides of the gear ring on their adjacent sides. An acceleration gear set is installed at the two extended ends of the inner ball. As a further description of the above technical solution: The submersible includes a frame, a power receiving plate on the top of the frame and the power receiving plate being connected to the output end of the energy storage device through a power transmission sleeve, a detector on the inner side of the frame, and propellers at multiple ends of the frame, with the input end of the propellers being electrically connected to the power receiving plate through wires.

[0008] Compared with the prior art, the advantages of the present invention are as follows: 1. The floating ring of the sensing element in the draft mechanism drives the sliding ring to slide back and forth along the pressure transmission cylinder under the force of the waves. The magnetic block on the inner side of the sliding ring drives the push plate to compress or stretch the return spring, changing the fluid pressure in the pressure transmission cylinder. This pressure drives the push sleeve of the drainage component and the pressure plate to squeeze the internal space of the drainage tank through the pressure transmission channel, thereby driving the sealing cylinder in the flow valve to slide, realizing the opening and closing of the flow hole to control the discharge or introduction of seawater from the drainage tank. This adjusts the overall draft volume of the main float and simultaneously changes the draft depth of the oscillating float. Thus, the power generation device can adaptively adjust the draft depth according to the size of the wave fluctuations. This avoids the oscillating float being damaged by excessive force during large waves and solves the problem of insufficient power generation due to shallow draft during small waves, ensuring the stable energy capture state of the oscillating float.

[0009] 2. The oscillating float of the energy-capturing component in the power generation mechanism is driven by the wave thrust and guided by the gravity plate. This force overcomes the torsion spring force and rotates the oscillating float to face the wave direction. At the same time, the oscillating float drives the articulated pile to pull the rack plate to slide along the limit pile. The rack plate drives the gear ring of the reversing ball pile and the outer spherical shell to rotate. The magnetic block two of the outer spherical shell drives the inner ball to rotate. The extension end of the inner ball drives the acceleration gear set to amplify the speed and drive the dual-shaft generator to operate. This process not only keeps the oscillating float facing the wave to fully capture energy, but also steadily converts mechanical energy into electrical energy through multi-stage transmission, improving power generation efficiency and the stability of device operation. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the main body of an embodiment of the wave energy power generation device proposed in this invention; Figure 2 This is a schematic diagram of the draft mechanism of the wave energy power generation device proposed in this invention; Figure 3 This is a schematic diagram of the structure of the inductor of the wave energy generation device proposed in this invention; Figure 4 This is a schematic diagram of the drainage component of the wave energy power generation device proposed in this invention; Figure 5 This is a schematic diagram of the power generation mechanism of the wave energy power generation device proposed in this invention; Figure 6 This is a schematic diagram of the energy harvesting component of the wave energy power generation device proposed in this invention; Figure 7 This is a schematic diagram of the reversing ball pile structure of the wave energy power generation device proposed in this invention; Figure 8 for Figure 4 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram of the submersible of the wave energy power generation device proposed in this invention.

[0011] Labeling Explanation: 1. Main buoy; 2. Energy storage device; 3. Power transmission sleeve; 4. Submersible; 401. Frame; 402. Power terminal; 403. Detector; 404. Propeller; 5. Draft mechanism; 51. Sensor; 511. Pressure transmission cylinder; 512. Sliding ring; 513. Roller; 514. Push plate; 515. Magnetic block one; 516. Return spring; 517. Floating ring; 52. Pressure transmission channel; 53. Drainage component; 531. Drainage tank; 532. Push rod; 533. Pressure plate; 534. Flow valve; 535. Fixing ring; 536. Sealing cylinder; 537. Connecting spring; 6. Generating mechanism; 61. Extension plate; 62. Rotating component; 621. Rotating disk; 622. Rotating pile; 623. Torsion spring; 63. Energy capture component; 631. Connecting frame; 632. Oscillating float; 633. Gravity plate; 634. Counterweight; 64. Transmission component; 641. Hinge pile; 642. Rack plate; 643. Limiting pile; 644. Support plate; 65. Directional ball pile; 651. Fixed pile; 652. Inner ball; 653. Magnetic block two; 654. Outer spherical shell; 655. Gear ring; 66. Accelerating gear set; 67. Dual-shaft generator. Detailed Implementation

[0012] The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figures 1 to 8The diagram shows an embodiment of the wave energy generation device provided by the present invention. This embodiment provides a wave energy generation device, including a main float 1, which serves as the main support for the device, maintaining the basic buoyancy of the device and providing installation support for various components. An energy storage device 2 is provided on the top of the main float 1. The energy storage device 2 is used to temporarily store the electrical energy converted by the dual-shaft generator 67, realizing the storage and backup of electrical energy. The output end of the energy storage device 2 is provided with a transmission sleeve 3 containing multiple sets of transmission lines inside. The transmission sleeve 3 stably transmits the electrical energy of the energy storage device 2 through the multiple sets of transmission lines inside, ensuring the reliability of electrical energy transmission. A submersible 4 is provided at one output end of the transmission sleeve 3. The submersible 4 serves as an underwater operation carrier, performing underwater movement and detection tasks. A draft mechanism 5 is provided at the bottom of the main float 1. The draft mechanism 5 adjusts the draft volume of the device according to the wave fluctuations to adapt to the energy capture requirements of different wave conditions. A power generation mechanism 6 is provided on the outside of the main float 1. The power generation mechanism 6 converts the mechanical energy of the waves into electrical energy, completing the energy conversion and output.

[0013] The draft mechanism 5 includes sensors 51 located at the four corners of the bottom of the main float 1. The sensors 51 sense changes in wave force and convert the wave force into changes in internal fluid pressure. A drainage component 53 is located at the center of the bottom of the main float 1. The drainage component 53 adjusts the overall weight of the device by discharging or introducing seawater, thereby changing the draft volume. A pressure transmission channel 52 is provided inside the main float 1. The pressure transmission channel 52 connects the sensors 51 and the drainage component 53 to realize the transmission of fluid pressure. Its two ends are connected to the drainage component 53 and the sensors 51, respectively.

[0014] The sensing element 51 includes a pressure-transmitting cylinder 511 fixedly connected to the bottom of the main float 1. The pressure-transmitting cylinder 511 provides a closed fluid pressure regulating chamber and provides installation space for the sliding ring 512 and the push plate 514. The sliding ring 512 is slidably connected to the outside of the pressure-transmitting cylinder 511. The sliding ring 512 slides along the pressure-transmitting cylinder 511 under the force of the waves, causing the magnetic block 515 to change its relative position. A roller 513 is provided between the sliding ring 512 and the pressure-transmitting cylinder 511. The roller 513 reduces the sliding friction between the sliding ring 512 and the pressure-transmitting cylinder 511 and improves the smoothness of sliding. Two floating rings 517 are provided on the outside of the sliding ring 512. The floating rings 517 directly bear the periodic action of the waves. Force triggers the reciprocating sliding of the sliding ring 512. A push plate 514 is slidably connected to the inner side of the pressure conveying cylinder 511. The push plate 514 moves under the magnetic force of the magnetic block 515, changing the volume of the fluid space inside the pressure conveying cylinder 511. Multiple magnetic blocks 515 are arranged at relative positions on the outer side of the push plate 514 and the inner side of the sliding ring 512. The magnetic blocks 515 transmit the movement of the sliding ring 512 through magnetic force, driving the push plate 514 to move to adjust the fluid pressure. A return spring 516 is arranged between the bottom of the push plate 514 and the inner bottom of the pressure conveying cylinder 511. The return spring 516 assists the push plate 514 to return to its original position, so that the pressure inside the pressure conveying cylinder 511 is adjusted reciprocally with the wave force.

[0015] The drainage component 53 includes a drainage tank 531 fixedly connected to the bottom of the main float 1. The drainage tank 531 stores seawater, and the seawater inflow and outflow are controlled by the compression or expansion of its internal space. A pusher rod 532 is provided between the drainage tank 531 and the pressure transmission channel 52. The pusher rod 532 receives the pressure from the pressure transmission channel 52 and drives the pressure plate 533 to move, thereby changing the internal space of the drainage tank 531. The bottom of the pusher rod 532 is fixedly connected to the pressure plate 533, and the outer side of the pressure plate 533 is slidably connected to the inner side of the drainage tank 531. The pressure plate 533 slides along the inner side of the drainage tank 531, compressing the internal space to adjust the pressure of the drainage tank 531. Multiple flow valves 534 are provided on the bottom outer side of the drainage tank 531. The flow valves 534 control the flow of the drainage tank 531 and the pressure of the drainage tank 531. An external fluid flow path enables the opening and closing of seawater. A fixed ring 535 is fixedly connected inside the flow valve 534. The fixed ring 535 provides a sliding guide for the sealing cylinder 536 and limits the movement trajectory of the sealing cylinder 536. The sealing cylinder 536 is slidably connected to the inner side of the fixed ring 535. The sealing cylinder 536 controls the flow of fluid by adjusting the alignment of the flow hole. Both ends of the sealing cylinder 536 and both ends of the flow valve 534 are provided with flow holes, which form a channel for fluid flow. The seawater in and out is controlled by aligning or offsetting the flow holes. A connecting spring 537 is provided between the two ends of the sealing cylinder 536 and the fixed ring 535. The connecting spring 537 assists the sealing cylinder 536 in resetting and maintaining the initial opening and closing state of the flow hole.

[0016] The power generation mechanism 6 includes multiple extension plates 61 fixedly connected around the main float 1. The extension plates 61 provide mounting support for the rotating component 62 and the deflecting ball pile 65, expanding the arrangement space of the power generation mechanism 6. A rotating component 62 is provided at the other end of each extension plate 61, providing rotational support for the energy harvesting component 63. The rotating component 62, in conjunction with a torsion spring 623, achieves angle reset and adjustment. The energy harvesting component 63 is located at the bottom of the rotating component 62, directly capturing the mechanical energy of the waves and converting wave thrust into mechanical motion. A transmission component 64 is provided on the outer side of the energy harvesting component 63, transmitting the motion of the energy harvesting component 63 to the deflecting ball pile 65, realizing motion transmission and guidance. The top of the extension plate 61... The main float 1 is equipped with a reversing ball pile 65, which converts the horizontal movement of the rack plate 642 into the vertical rotation of the inner ball 652, thereby changing the direction of motion. The outer side of the main float 1 is also equipped with an acceleration gear set 66 that is connected to the reversing ball pile 65. The acceleration gear set 66 amplifies the rotational speed transmitted by the inner ball 652, providing a suitable input speed for the dual-shaft generator 67. Multiple dual-shaft generators 67 are installed inside the main float 1. The dual-shaft generators 67 convert the mechanical energy transmitted by the acceleration gear set 66 into electrical energy, thus completing the energy conversion. The input end of the dual-shaft generator 67 is connected to the output end of the acceleration gear set 66, and the output end of the dual-shaft generator 67 is connected to the energy storage device 2.

[0017] The rotating component 62 includes a rotating post 622 fixedly connected to the other end of the extension plate 61. The rotating post 622 provides a carrier for the rotating disk 621 to be rotatably mounted and defines the rotation center of the rotating disk 621. The rotating disk 621 is rotatably connected to the outside of the rotating post 622. The rotating disk 621 carries the energy-capturing component 63 and rotates with the movement of the energy-capturing component 63, transmitting motion to the transmission component 64. A torsion spring 623 is provided between the rotating disk 621 and the rotating post 622. The torsion spring 623 provides a restoring elastic force for the rotating disk 621 and assists the energy-capturing component 63 in adjusting to the appropriate angle.

[0018] The energy capture component 63 includes a connecting frame 631 fixedly connected to the bottom of the rotating disk 621. The connecting frame 631 provides rotational mounting support for the oscillating float 632 and limits the rotation trajectory of the oscillating float 632. The oscillating float 632 is rotatably connected to the outside of the connecting frame 631. The oscillating float 632 receives the wave thrust and converts wave energy into mechanical motion through reciprocating rotation. A gravity plate 633 is provided at the rear end of the oscillating float 632. The gravity plate 633 guides the wave force to the rear end of the oscillating float 632 and helps to adjust it to face the wave. A counterweight 634 is provided at the front end of the oscillating float 632. The counterweight 634 uses its own weight to assist the oscillating float 632 in resetting and stabilizing its rotation amplitude.

[0019] The transmission component 64 includes a hinge pin 641 disposed on the outer side of the front end of the oscillating float 632. The hinge pin 641 connects the oscillating float 632 and the rack plate 642, converting the rotation of the oscillating float 632 into the sliding of the rack plate 642. The rack plate 642 is hinged to the other end of the hinge pin 641. The rack plate 642 converts the oscillation of the hinge pin 641 into the rotation of the gear ring 655, transmitting mechanical motion. The outer side of the rotating disk 621 is fixedly connected to a limit pin 643, and the outer side of the rack plate 642 is slidably connected to the inner side of the limit pin 643. The limit pin 643 provides sliding guidance for the rack plate 642, limiting its movement trajectory. Two abutment plates 644 are disposed on one side of the rack plate 642. The abutment plates 644 abut against both sides of the gear ring 655, ensuring the meshing stability of the rack plate 642 and the gear ring 655.

[0020] The deflector ball post 65 includes a fixed post 651 fixedly connected to the top of the extension plate 61. The fixed post 651 provides rotational support for the inner ball 652 and defines the rotation center of the inner ball 652. The inner ball 652 is rotatably connected between the two fixed posts 651. The inner ball 652 receives the movement of the outer spherical shell 654 and transmits the movement to the acceleration gear set 66 to realize the change of movement direction. The outer spherical shell 654 is sleeved on the outside of the inner ball 652. The outer spherical shell 654 carries the gear ring 655. As the gear ring 655 rotates, it drives the magnetic block 653 to act on the inner ball 652. A magnetic block 653 is provided between the outer spherical shell 654 and the inner sphere 652. The magnetic block 653 transmits the movement of the outer spherical shell 654 through magnetic force, driving the inner sphere 652 to rotate. A gear ring 655 is fixedly connected to the outer side of the outer spherical shell 654. The gear ring 655 meshes with the rack plate 642, converting the sliding of the rack plate 642 into its own rotation, and transmitting the motion. The gear ring 655 and the rack plate 642 mesh with each other, and the adjacent sides of the two abutment plates 644 abut against the two sides of the gear ring 655. The acceleration gear set 66 is installed at the two extended ends of the inner sphere 652.

[0021] like Figure 9 As shown, the submersible 4 includes a frame 401, which provides mounting support for the power plate 402, detector 403, and propeller 404, maintaining the structural strength of the submersible 4. The power plate 402 is provided on the top of the frame 401 and is connected to the output end of the energy storage device 2 through the power transmission sleeve 3. The power plate 402 receives the electrical energy transmitted by the power transmission sleeve 3 and distributes power to the propeller 404 and detector 403. The detector 403 is provided on the inner side of the frame 401. The detector 403 uses the power provided by the power plate 402 to perform underwater environment detection tasks. Propellers 404 are provided at multiple ends of the frame 401, and the input end of the propeller 404 is electrically connected to the power plate 402 through wires. The propeller 404 receives the power from the power plate 402 to drive its rotation, providing underwater propulsion for the submersible 4.

[0022] Working principle: When waves act on the wave energy generation device, the waves first contact the sensing element 51 included in the draft mechanism 5 on the outer side of the main float 1. The undulation of the waves will apply a periodic force to the two floating rings 517 on the outer side of the sensing element 51. Under the push of this force, the sliding ring 512 slides back and forth along the outer side of the pressure transmission cylinder 511. The roller 513 between the sliding ring 512 and the pressure transmission cylinder 511 will roll as the sliding ring 512 slides to reduce frictional resistance. As the sliding ring 512 slides, the relative positions of the multiple magnetic blocks 515 on its inner side and the magnetic blocks 515 on the outer side of the inner push plate 514 of the pressure transmission cylinder 511 change. The magnetic force between the magnetic blocks 515 pushes the push plate 514 to move along the inner side of the pressure transmission cylinder 511 towards the inner bottom. The return spring 516 at the bottom of the push plate 514 is gradually compressed or stretched. The volume of the enclosed space above the push plate 514 inside the pressure transmission cylinder 511 shrinks or increases, and the internal fluid pressure increases or decreases accordingly, forming a negative pressure.

[0023] When the waves are large, the floating ring 517 moves upward, which increases the pressure inside the sensing element 51. This pressure is transmitted through the pressure transmission channel 52 inside the main float 1. Since the two ends of the pressure transmission channel 52 are connected to the internal space of the pressure transmission cylinder 511 of the sensing element 51 and the position of the push sleeve 532 of the drainage element 53, the increased fluid pressure in the pressure transmission cylinder 511 is transmitted to the push sleeve 532 along the pressure transmission channel 52, applying an axial thrust to the push sleeve 532. This pushes the push sleeve 532 to move linearly along the inner side of the drainage tank 531 towards the bottom, thereby causing the pressure plate 533, which is fixed to the bottom of the push sleeve 532, to move synchronously with it. The pressure plate 533 slides along the inner wall of the drainage tank 531 and squeezes the internal fluid space, causing the internal pressure of the drainage tank 531 to increase accordingly.

[0024] Pressure changes inside the drainage tank 531 trigger the operation of the flow valve 534 on its bottom outer side. The sealing cylinder 536 inside the flow valve 534 slides along the inner side of the fixing ring 535 under the pressure inside the drainage tank 531. The connecting springs 537 between the two ends of the sealing cylinder 536 and the fixing ring 535 are stretched or compressed as it slides. When the sealing cylinder 536 slides to a specific stroke, the flow holes at both ends are completely aligned with the flow holes at both ends of the flow valve 534 housing. The fluid inside the drainage tank 531 forms a flow path with the outside through the aligned flow holes, realizing the discharge of seawater. This reduces the overall weight of the power generation device and decreases the draft of the main float 1, which in turn reduces the draft of the oscillating float 632 in the subsequent power generation mechanism 6, making it more resistant to wave impact. The force also decreases accordingly, thus avoiding excessive impact on the oscillating float 632 and causing it to be damaged. When the wave force is stable, the internal pressure of the entire draft mechanism 5 is stable. Under the action of the connecting spring 537, the flow holes are staggered to cut off the flow path. When the wave force is too weak, the internal pressure of the drainage box 531 decreases, and a negative pressure is formed inside the entire drainage box 531, which drives the sealing cylinder 536 to slide in the opposite direction, thereby reconnecting the external seawater with the drainage box 531, allowing the external seawater to enter the drainage box 531. The weight of the entire power generation device increases, thereby increasing the overall draft volume, thus increasing the draft volume of the oscillating float, thus preventing the oscillating float from being unable to obtain power from the wave energy to convert it into electrical energy when the wave fluctuations are too small.

[0025] Simultaneously with the operation of the draft mechanism 5, waves act synchronously on the energy-capturing component 63 of the power generation mechanism 6 on the outside of the main float 1: the reciprocating thrust of the waves acts on the oscillating float 632, pushing the oscillating float 632 to rotate reciprocally along the outside of the connecting frame 631. The gravity plate 633 at the rear end of the oscillating float 632 is used to guide the force of the waves to the rear end of the oscillating float 632, so that the entire oscillating float 632 can overcome the elastic force of the torsion spring 623 and rotate when subjected to oblique force through the gravity of the gravity plate 633. This adjusts the front end of the oscillating float 632 to face the direction of the wave impact force, so as to prevent the waste of wave energy and protect the structure of the oscillating float 632 from damage caused by the side wave impact force. At the same time, the counterweight block 634 at the front end of the oscillating float 632 changes its spatial position with its rotation, using its own weight to assist the oscillating float 632 in resetting. The reciprocating rotation of the oscillating float 632 drives the hinged pile 641 on the outside of its front end to swing synchronously.

[0026] The swinging traction of the hinged pile 641 causes the rack plate 642, which is hinged to it, to slide back and forth along the inner side of the limiting pile 643. The two abutment plates 644 on one side of the rack plate 642 always abut against the two sides of the gear ring 655 on the outer side of the deflecting ball pile 65, ensuring the meshing stability of the two while also allowing the rotation of the entire rack plate 642 to drive the outer spherical shell 654 and the gear ring 655 to rotate synchronously horizontally. As the rack plate 642 slides, the gear ring 655 that meshes with it is driven to rotate, and the outer spherical shell 654 on the outer side of the gear ring 655 moves synchronously with it. The magnetic block 653 between the outer spherical shell 654 and the inner ball 652 generates a magnetic force due to the movement of the outer spherical shell 654, which drives the inner ball 652 to rotate vertically along the inner side of the fixed pile 651. The two extended ends of the inner ball 652 rotate synchronously with it.

[0027] The rotation of the inner ball 652 drives the acceleration gear set 66 and the dual-shaft generator 67 to operate. The rotational power of the extended end of the inner ball 652 is transmitted to the acceleration gear set 66, and its internal gear structure amplifies and adjusts the input rotational speed. The output end of the acceleration gear set 66 is connected to the input end of the dual-shaft generator 67. The adjusted rotational power drives the input shaft of the dual-shaft generator 67 to rotate, causing the dual-shaft generator 67 to start and convert mechanical energy into electrical energy. The generated electrical energy is transmitted through wires to the energy storage device 2 at the top of the main float 1, where the energy storage device 2 stores the electrical energy for later use.

[0028] When the underwater unmanned vehicle requires power, the energy storage device 2 transmits power through the power transmission sleeve 3. The output end of the energy storage device 2 is connected to one end of the power transmission sleeve 3. Multiple sets of power transmission lines inside the sleeve stably transmit the stored power to the power receiving plate 402 on the top of the underwater unmanned vehicle frame 401. After receiving the power, the power receiving plate 402 distributes it to the propellers 404 at multiple ends of the frame 401 through the wires, driving the propellers 404 to rotate to provide navigation power. At the same time, the power receiving plate 402 transmits part of the power to the detector 403 inside the frame 401, providing power support for the detector 403 to work and enabling the detector 403 to perform its detection mission normally.

Claims

1. Wave power plant comprising a main float (1), characterised in that: The main float (1) is provided with an energy storage device (2) at its top, and the output end of the energy storage device (2) is provided with a power transmission sleeve (3) containing multiple sets of power transmission lines inside. The output end of the power transmission sleeve (3) is provided with a submersible (4). The bottom of the main float (1) is provided with a draft mechanism (5), and the outside of the main float (1) is provided with a power generation mechanism (6). The draft mechanism (5) includes sensors (51) respectively located at the four corners of the bottom of the main float (1), a drain device (53) is located at the center of the bottom of the main float (1), and a pressure transmission channel (52) is opened inside the main float (1), and the two ends of the pressure transmission channel (52) are respectively connected to the drain device (53) and the sensors (51). The sensing element (51) includes a pressure cylinder (511) fixedly connected to the bottom of the main float (1). A sliding ring (512) is slidably connected to the outside of the pressure cylinder (511), and a roller (513) is provided between the sliding ring (512) and the pressure cylinder (511). Two floating rings (517) are provided on the outside of the sliding ring (512). A push plate (514) is slidably connected to the inside of the pressure cylinder (511), and multiple magnetic blocks (515) are provided on the outside of the push plate (514) and the inside of the sliding ring (512) at opposite positions. A reset spring (516) is provided between the bottom of the push plate (514) and the inner bottom of the pressure cylinder (511).

2. A wave power plant according to claim 1, characterised in that: The drainage component (53) includes a drainage tank (531) fixedly connected to the bottom of the main float (1). A pusher sleeve (532) is provided between the drainage tank (531) and the pressure channel (52). A pressure plate (533) is fixedly connected to the bottom of the pusher sleeve (532), and the outer side of the pressure plate (533) is slidably connected to the inner side of the drainage tank (531). Multiple flow valves (534) are provided on the outer side of the bottom of the drainage tank (531). A fixing ring (535) is fixedly connected inside the flow valve (534). A sealing cylinder (536) is slidably connected to the inner side of the fixing ring (535). Flow holes are provided at both ends of the sealing cylinder (536) and both ends of the flow valve (534). A connecting spring (537) is provided between the two ends of the sealing cylinder (536) and the fixing ring (535).

3. A wave power plant according to claim 1, characterised in that: The power generation mechanism (6) includes multiple extension plates (61) fixedly connected around the main float (1). A rotating part (62) is provided at the other end of the extension plate (61). An energy capture part (63) is provided at the bottom of the rotating part (62). A transmission part (64) is provided on the outside of the energy capture part (63). A directional ball pile (65) is provided at the top of the extension pile. An acceleration gear set (66) is also provided on the outside of the main float (1) and is connected to the directional ball pile (65). Multiple dual-shaft generators (67) are provided inside the main float (1). The input end of the dual-shaft generator (67) is connected to the output end of the acceleration gear set (66), and the output end of the dual-shaft generator (67) is connected to the energy storage device (2).

4. The wave energy generation device according to claim 3, characterized in that: The rotating component (62) includes a rotating post (622) fixedly connected to the other end of the extension plate (61), a rotating disk (621) is rotatably connected to the outside of the rotating post (622), and a torsion spring (623) is provided between the rotating disk (621) and the rotating post (622).

5. The wave energy generation device according to claim 4, characterized in that: The energy capture component (63) includes a connecting frame (631) fixedly connected to the bottom of the rotating disk (621), an oscillating float (632) is rotatably connected to the outside of the connecting frame (631), and an attraction plate (633) is provided at the rear end of the oscillating float (632), and a counterweight (634) is provided at the front end of the oscillating float (632).

6. The wave energy generation device according to claim 5, characterized in that: The transmission component (64) includes a hinged post (641) disposed on the outer side of the front end of the oscillating float (632), and a rack plate (642) is hinged to the other end of the hinged post (641). A limit post (643) is fixedly connected to the outer side of the rotating disk (621), and the outer side of the rack plate (642) is slidably connected to the inner side of the limit post (643). Two abutment plates (644) are provided on one side of the rack plate (642).

7. The wave energy generation device according to claim 6, characterized in that: The deflection ball pile (65) includes a fixed pile (651) fixedly connected to the top of the extension plate (61), an inner ball (652) rotatably connected between the two fixed piles (651), an outer spherical shell (654) is sleeved on the outer side of the inner ball (652), and a magnetic block (653) is provided between the outer spherical shell (654) and the inner ball (652). A gear ring (655) is fixedly connected to the outer side of the outer spherical shell (654), the gear ring (655) meshes with the rack plate (642), and the two abutting plates (644) abut against the two sides of the gear ring (655) on the same side. An acceleration gear set (66) is installed at the two extension ends of the inner ball (652).

8. The wave energy generation device according to claim 1, characterized in that: The submersible (4) includes a frame (401), a power receiving plate (402) is provided on the top of the frame (401), and the power receiving plate (402) is connected to the output end of the energy storage device (2) through a power transmission sleeve (3). A detector (403) is provided on the inner side of the frame (401). Propellers (404) are provided at multiple ends of the frame (401), and the input end of the propeller (404) is electrically connected to the power receiving plate (402) through a wire.

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