A connecting device of a wave energy power generation energy transmission mechanism

Abstract

The application relates to a connecting device of a wave energy power generation energy transmission mechanism, which is provided with an outer shell, a mandrel, a nut, a mandrel bearing, a lock hook and a connecting seat. The mandrel bearing is installed outside the rod body of the mandrel, the upper end of the mandrel is connected with the nut, the mandrel bearing and the nut are both installed in the outer shell, and the outer shell is fixed with the top cover through bolts. The lower part of the mandrel is provided with a handle wheel mounting table and the connecting seat, and the handle wheel mounting table of the lower part of the mandrel blocks the mandrel bearing in the outer shell. The top cover can be connected with the vertical hydraulic cylinder piston rod of the vertical hydraulic cylinder fixed on the table top, and the connecting seat can be connected with the central shaft of a floating body. The application is used as the connecting device between the wave energy power generation energy transmission mechanism installed on the table top and the wave energy power generation energy transmission mechanism in water, and can be used on the in-use and abandoned water platforms, such as ocean oil platforms and platforms of water buildings deep into the ocean and lakes.

Description

Technical Field

[0001] This invention pertains to connection tools for energy transmission mechanisms in wave energy power generation equipment, specifically relating to a connection device for wave energy power generation energy transmission mechanisms. Background Technology

[0002] Wave power is a renewable energy source, and if fully utilized, it is of great significance for supplementing the supply of traditional energy sources and alleviating the energy crisis.

[0003] Wave energy refers to the kinetic and potential energy of water surface undulations. The ocean has abundant wave energy reserves and is one of the main renewable energy sources. Wave power generation has huge potential in the development and utilization of wave energy. The total wave power generation energy around the land coast is enormous, and the technically exploitable portion of it is also considerable.

[0004] After more than 30 years of development, China has built a considerable number of offshore oil platforms, with jacket foundation-type fixed platforms accounting for the vast majority. As some platforms reach the end of their design lifespan and can no longer be used for offshore oil and gas field development, in recent years, a small number of platforms that have reached the end of their service life and can no longer be used have begun to be dismantled, recycled, or repurposed.

[0005] Offshore platform decommissioning and disposal is a complex system engineering project involving many aspects. Although it is the reverse process of development, the aspects involved are not entirely the same as those in the development process and have their own unique characteristics. Generally speaking, the decommissioning and dismantling of jacket platforms are constrained by factors such as the environment, available technology, cost, safety and reliability, as well as the laws and regulations that must be followed and social impact. The combined influence of these factors determines the choice of disposal scheme for jacket offshore oil platforms.

[0006] The reuse of offshore jacket oil platforms can be categorized into several directions, including artificial reefs, meteorological observation stations, wind power generation, wave power generation, and recreational facilities. Specific projects require comprehensive consideration and optimization of the best solutions to achieve a win-win situation for both economic and social benefits.

[0007] Current wave energy generation technologies mainly include oscillating water column technology, oscillating float technology, and wave-crossing technology. Commonly used wave energy generation devices all involve separately designed carriers, increasing design and construction costs and resulting in a significant amount of wave energy not being effectively collected. Furthermore, most wave energy generation devices can only collect one type of wave energy or use a combination of methods to collect multiple types. Examples of wave energy generation devices include: The wave energy generation device disclosed in authorization announcement number CN106762362B includes a water flow power generation part that can float on the water surface, a rotating power generation part that is suspended in the water, a buoyancy power generation part that is fixed to the seabed, a connecting rod, and a rope. The water flow generator of the water flow power generation part is driven to generate electricity by the horizontal water flow. The two ends of the connecting rod are respectively fixedly connected to the outer shell of the water flow power generation part and the power generation shaft of the rotating generator of the rotating power generation part, and the connecting rod drives the rotating generator of the rotating power generation part to generate electricity. The two ends of the rope are respectively fixedly connected to the rotating power generation part and the buoyancy power generation part, and the rope drives the buoyancy generator of the buoyancy power generation part to generate electricity. A universal joint is provided on the bottom surface of the rotating power generation part, and the upper end of the rope is fixedly connected to the universal joint.

[0008] The aforementioned patented technology can generate electricity using the kinetic energy of ocean wave flow, the rotational force generated by the water flow pushing the power generation part on the water surface, and the potential energy changes from the up-and-down movement of ocean waves. The efficiency of converting wave energy into electrical energy is relatively high. However, the structure of the aforementioned patented technology is relatively complex and not suitable for use on existing offshore oil platforms and floating platforms.

[0009] CN111207025A discloses a wave energy generation device, comprising a float driven by wave rise and fall, with one end in the longitudinal direction serving as the mounting end, and the other end having a rack assembly extending from the top of the float onto its bottom buoyancy surface. The extension direction of the rack assembly is perpendicular to the buoyancy surface. A flywheel assembly is disposed within the hull of the float, with its rotation axis arranged in the same direction as the rack assembly. During the up-and-down movement of the float, power is input to the rack assembly via a gear and rack structure to generate electricity. The flywheel assembly inside the float rotates during power generation. By aligning the rotation axis of the flywheel assembly with the rack assembly, the flywheel assembly improves the float's stability on the wave surface during wave rise and fall, and its rotation also enhances the energy storage capacity during power generation, thereby increasing the power generation capacity.

[0010] Although the aforementioned patented technology is simpler than existing devices that generate electricity using gear components, its structure is still relatively complex, its manufacturing cost is high, and it is not suitable for use on existing offshore oil platforms and floating platforms.

[0011] If a wave energy harvesting device can be developed for offshore wave energy development, providing energy for related power generation devices and effectively reusing in-service or soon-to-be-expired jacketed offshore oil platforms or floating platforms, it can not only reduce the waste of wave energy power generation device carriers and respond to the national energy conservation and emission reduction policy, but also reduce the engineering investment in offshore energy development and accelerate the speed and efficiency of offshore energy development.

[0012] Because the aforementioned wave energy harvesting device involves installing part of the wave energy transmission mechanism on existing operational or soon-to-expire jacket offshore oil platforms or floating platforms, while another part of the wave energy transmission mechanism needs to be fixed in the sea or water, the harvested wave energy is transmitted to the power generation device through the wave energy transmission mechanism to generate electricity, it is necessary to develop a connection device between the floating platform and the wave energy transmission mechanism in the water. Summary of the Invention

[0013] The purpose of this invention is to provide a connection device for a wave energy power generation transmission mechanism, which connects the wave energy power generation transmission mechanism in an offshore oil platform or a floating platform to a wave energy power generation transmission mechanism in the sea or water, using the floating platform as a carrier to provide energy to the relevant power generation device, produce clean energy, and utilize and protect the environment.

[0014] The technical solution of this invention is: A connecting device for a wave energy power generation transmission mechanism includes a housing, a spindle, a nut, a core bearing, a locking hook, and a connecting seat, wherein: The mandrel bearing is installed outside the mandrel body, and the upper end of the mandrel is connected to the nut. Both the mandrel bearing and the nut are installed in the outer casing, and the outer casing is fixed to the top cover by bolts. The lower part of the spindle is provided with a dial wheel mounting platform and a connecting seat. The dial wheel mounting platform at the lower part of the spindle seals the spindle bearing inside the housing. The top cover can be connected to the piston rod of the longitudinal hydraulic cylinder fixed on the platform, and the connecting seat can be connected to the central shaft of the float.

[0015] Preferably, a dial wheel is mounted on the outside of the dial wheel mounting platform at the lower part of the spindle, and a locking hook is mounted in the outer wall of the connecting seat, the locking hook being able to connect to the central shaft of the float.

[0016] Preferably, the inner cavity of the outer shell is provided with a partition, the core rod bearing is installed above and below the partition, the longitudinal section of the core rod is inverted T-shape, and the core rod bearing is installed on the outside of the rod body at the upper part of the core rod.

[0017] Preferably, the mandrel bearing is a tapered ball bearing, and the upper part of the mandrel passes upward through the mandrel bearing and the spacer to connect with the nut.

[0018] Preferably, the outer edge of the dial wheel has a concave-convex petal structure. The dial wheel is fixed to the outside of the dial wheel mounting platform of the spindle by the groove of the outer edge and the screw, and a handle is installed in the groove of the dial wheel between the locking hooks. The two sides of the convex edge of the concave-convex petal structure of the outer edge of the dial wheel are chamfered.

[0019] Preferably, the outer periphery of the connector is provided with mounting ears, and the locking hook is installed in the mounting ears by means of a pivot pin.

[0020] Preferably, the outer periphery of the connecting seat is equipped with three or more locking hooks.

[0021] Preferably, the locking hook has an L-shaped eccentric structure, with the upper hook body installed in the mounting ear on the outer periphery of the connecting seat and able to be locked in the groove of the petal-shaped structure on the outer edge of the dial wheel, and the front end of the lower hook body can extend into the lower end of the connecting seat and connect with the central shaft connector of the central shaft.

[0022] Preferably, the lower part of the front end of the lower hook body is inclined, and the thickness of the lower hook body is less than the width of the annular connecting groove in the central shaft connector.

[0023] Preferably, the number of locking hooks installed is half the number of grooves in the concave-convex petal structure on the outer edge of the dial.

[0024] The significant advantages of this invention are: This invention serves as a connection device between a wave energy generation and transmission mechanism mounted on a platform and one in the water. It allows the wave energy generation and transmission mechanism to be used on both active and abandoned floating platforms, such as offshore oil platforms and floating observation decks extending into the ocean or lakes. This enables the reuse of floating platforms, has a wide range of applications, and by using this device as a connection for the wave energy generation and transmission mechanism, it can collect and provide energy to the power generation device, producing clean energy and achieving both environmental utilization and protection.

[0025] Considering the potential damage that storm surges can cause to wave energy harvesting devices, the connection between the wave energy transmission mechanism located in the sea and the wave energy transmission mechanism on the offshore oil platform or floating platform should be promptly severed. To this end, this invention features a dial wheel mounted outside the dial wheel mounting platform at the lower part of the spindle, and a locking hook installed in the outer wall of the connecting seat. This locking hook can connect to the central axis of the float. When connected to the central axis of the float using the locking hook of this invention, the two wave energy transmission mechanisms can be disconnected during storm surges, depending on weather conditions, thus protecting the wave energy transmission mechanism in the water, reducing damage from storm surges, and extending its service life.

[0026] This invention has a simple structure and is an important device for simplifying the structure of existing wave energy power generation devices, using mature power generation devices, and realizing the connection between the wave energy power generation energy transmission mechanism on the platform and the wave energy power generation energy transmission mechanism in the water. It has significant effects in use. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0028] Figure 1 This is a schematic diagram of the working state of the device of the present invention.

[0029] Figure 2 for Figure 1 A schematic diagram of the structure of the device of the present invention.

[0030] Figure 3 for Figure 2 A schematic diagram of the center derailleur and connecting seat.

[0031] Figure 4 for Figure 2 and Figure 3 A schematic diagram of the center dial.

[0032] Figure 5 for Figure 2 A schematic diagram of the locking hook structure.

[0033] Figure 6 for Figure 2 and Figure 3 A schematic diagram of the middle connector.

[0034] Figure 7 for Figure 1 A schematic diagram of the structure of the mid-float body.

[0035] In the diagram: 1. Longitudinal hydraulic cylinder; 11. Longitudinal hydraulic cylinder piston rod; 12. Inlet check valve; 13. Outlet check valve; 14. Low-pressure storage tank; 15. High-pressure accumulator; 2. Connecting device; 20. Outer shell; 21. Spindle; 22. Nut; 23. Spindle bearing; 24. Dial wheel; 25. Lock hook; 26. Handle; 27. Bolt; 28. Top cover; 29. ​​Connecting seat; 3. Platform mechanism; 5. Float; 51. Central shaft connector; 52. Central shaft; 6. Bottom fixing mechanism; 7. Platform. Detailed Implementation

[0036] The accompanying drawings are for reference and illustration only and are not intended to limit the scope of protection of this invention. The technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0038] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] See Figure 1 - Figure 7 A connecting device for a wave energy power generation transmission mechanism includes a housing 20, a spindle 21, a nut 22, a core rod bearing 23, a locking hook 25, and a connecting seat 29, wherein: The core rod bearing 23 is installed outside the rod body of the core shaft 21. The upper end of the core shaft 21 is connected to the nut 22. Both the core rod bearing 23 and the nut 22 are installed in the outer casing 20. The outer casing 20 is fixed to the top cover 28 by bolts 27. The lower part of the spindle 21 is provided with a dial wheel mounting platform and a connecting seat 29. The dial wheel mounting platform at the lower part of the spindle 21 seals the spindle bearing 23 inside the outer casing 20. The top cover 28 can be connected to the piston rod 11 of the longitudinal hydraulic cylinder 1 fixed on the platform 7, and the connecting seat 29 can be connected to the central shaft 52 of the float 5. The connecting seat 29 and the central shaft 52 of the float 5 can be welded or bolted together.

[0040] This invention is in Figure 1 The identifier in the diagram is the connecting device 2. The wave energy transmission mechanism installed on the platform 7 includes a longitudinal hydraulic cylinder 1 and a horizontal hydraulic cylinder 4 fixed around the platform mechanism 3, as well as a power generation device, which includes a hydraulic energy storage power generation device.

[0041] The wave energy transmission mechanism in the water includes a float 5, which is fixed to the outside of a central shaft 52. The lower part of the central shaft 52 is provided with a limiting ring, and the central shaft 52 below the limiting ring can be submerged in a bottom fixing mechanism 6. The bottom fixing mechanism 6 can be fixed to a reef or have more than one-third of its portion buried in underwater mud.

[0042] The upper end of the longitudinally mounted hydraulic cylinder 1 is equipped with a three-way pipeline communicating with the inner cavity of the cylinder. On one side of the vertical pipeline, a liquid inlet check valve 12 and a low-pressure storage tank 14 are sequentially installed in the horizontal pipeline. On the other side of the vertical pipeline, a liquid outlet check valve 13 and a high-pressure energy storage tank 15 are sequentially installed in the horizontal pipeline. The high-pressure energy storage tank 15 is connected to a power generation device. Under the action of the liquid inlet check valve 12 and the liquid outlet check valve 13, the piston rod 11 of the longitudinally mounted hydraulic cylinder moves up and down, and the energy is transferred to the power generation device through the high-pressure energy storage tank 15.

[0043] The connecting device 2 serves as a connection between the wave energy transmission mechanism installed on the platform 7 and the wave energy transmission mechanism in the water. This allows the wave energy transmission mechanism to be used on both active and abandoned floating platforms, such as offshore oil platforms and floating observation decks extending into the ocean or lakes. This enables the reuse of floating platforms and has a wide range of applications. By using this device as a connection for the wave energy transmission mechanism, energy can be collected and supplied to the power generation device, producing clean energy, thus achieving environmental utilization and protection. This invention has a simple structure and is an important device for simplifying the structure of existing wave energy generation devices, enabling the use of mature power generation devices, and connecting the wave energy transmission mechanism on the platform 7 with the wave energy transmission mechanism in the water.

[0044] Based on the above embodiment one, the present invention also has the following embodiments: In a preferred embodiment: a dial wheel 24 is mounted on the outside of the dial wheel mounting platform at the lower part of the spindle 21, and a locking hook 25 is mounted in the outer wall of the connecting seat 29. The locking hook 25 can be connected to the central shaft 52 of the float 5. When the locking hook 25 is connected to the central shaft 52 of the float 5 in this invention, the two wave energy transmission mechanisms can be disconnected through the connecting device 2 according to the weather conditions when a storm surge occurs, protecting the wave energy transmission mechanism in the water, reducing the damage caused by the storm surge, and extending its service life. In order to reduce the impact of the storm surge on the wave energy transmission mechanism in the water, after the central shaft 52 is disconnected from the connecting device 2, the float 5 can be sunk into the water by filling it with water. After filling with water, the upper end of the central shaft 52 can be sealed with a rubber plug on the platform 7. While protecting the wave energy transmission mechanism in the water from damage, the horizontal hydraulic cylinder 4 mounted on the platform 7 around the platform mechanism 3 can still collect the kinetic energy of the waves through the connection between the central shaft 52 and the platform mechanism 3 and the horizontal hydraulic cylinder 4.

[0045] In a preferred embodiment: the inner cavity of the outer shell 20 is provided with a partition, the core rod bearing 23 is installed above and below the partition, the longitudinal section of the core shaft 21 is inverted T-shaped, and the core rod bearing 23 is installed on the outside of the upper part of the core shaft 21.

[0046] In a preferred embodiment, the mandrel bearing 23 is a tapered ball bearing, and the upper part of the mandrel 21 passes upward through the mandrel bearing 23 and the spacer to connect with the nut 22.

[0047] In a preferred embodiment: the outer edge of the dial wheel 24 has a concave-convex petal structure. The dial wheel 24 is fixed to the outside of the dial wheel mounting platform of the spindle 21 by the groove of the outer edge and screws. A handle 26 is installed in the groove of the dial wheel 24 between the locking hooks 25. The two sides of the convex edge of the concave-convex petal structure of the outer edge of the dial wheel 24 are chamfered to facilitate the rotation of the dial wheel 24 and the displacement of the locking hooks 25. At least one handle 26 is installed in the groove of the dial wheel 24. By rotating the handle 26, the connection and disconnection between the connecting device 2 and the central shaft 52 can be easily realized. In the normal working state of the wave energy power generation energy transmission mechanism, the upper part of the locking hook 25 is located outside the convex edge of the concave-convex petal structure of the outer edge of the dial wheel 24, and the lower hook body of the locking hook 25 is hooked firmly in the annular connecting groove of the central shaft connector 51, realizing the connection between the wave energy power generation energy transmission mechanisms. When disconnecting from the central shaft 52, turn the handle 26 to rotate the dial 24, so that the upper part of the locking hook 25 is located in the groove of the convex-concave petal structure on the outer edge of the dial 24. At this time, the lower hook of the locking hook 25 disengages from the annular connecting groove of the central shaft connector 51, and the locking hook 25 is separated from the central shaft 52.

[0048] In a preferred embodiment, the outer periphery of the connecting seat 29 is provided with mounting ears, and the locking hook 25 is mounted in the mounting ears by means of a pivot pin.

[0049] In a preferred embodiment, the outer periphery of the connecting seat 29 is provided with three or more locking hooks 25.

[0050] In a preferred embodiment, the locking hook 25 has an L-shaped eccentric structure, with the upper hook body installed in the mounting ear on the outer periphery of the connecting seat 29 and able to be locked in the groove of the petal-shaped structure on the outer edge of the dial 24. The front end of the lower hook body of the locking hook 25 can extend into the lower end of the connecting seat 29 and connect with the central shaft connector 51 of the central shaft 52.

[0051] In a preferred embodiment: the lower front end of the lower hook body of the locking hook 25 is inclined, and the thickness of the lower hook body is less than the width of the annular connecting groove in the central shaft connector 51. The central shaft connector 51 is located on the top of the central shaft 52, and the central shaft connector 51 has an annular connecting groove in the middle of its body. The longitudinal section of the central shaft connector 51 is I-shaped.

[0052] In a preferred embodiment, the number of locking hooks 25 installed is half the number of grooves in the concave-convex petal structure on the outer edge of the dial 24.

[0053] The working principle of this invention is as follows: With this invention, the upper end of the central shaft 52 can be directly connected to the connecting seat 29 to realize the connection between wave energy power generation energy transmission mechanisms; the central shaft 52 can also be connected to the locking hook 25, which can realize the connection between wave energy power generation energy transmission mechanisms and also protect the wave energy power generation energy transmission mechanisms in the water.

[0054] If the central shaft 52 is connected to the locking hook 25 in this invention, in the event of a storm surge, this device can disconnect the connection between the central shaft 52 and the longitudinally placed hydraulic cylinder 1 in the wave energy transmission mechanism on the platform 7 through the locking hook 25, which can reduce the impact of storm surge on the wave energy transmission mechanism in the water and extend the service life of the wave energy transmission mechanism.

[0055] When the locking hook 25 of this invention is connected to the central shaft 52, in situations where the water, especially at sea, is rough, the connection between the longitudinal hydraulic cylinder 1 and the central shaft 52 can be disconnected via the connecting device 2. Water is then injected into the float 5 through the central shaft 52 and a water pump until the weight of the float 5 is slightly greater than its buoyancy, causing the float 5 to sink. The central shaft 52 below the float 5 sinks into the bottom fixing mechanism 6. The leaf spring at the upper end of the bottom fixing mechanism 6 acts as a stop ring at the lower part of the central shaft 52, allowing the float 5 to suspend below the water surface. At this time, the float 5 can still rotate under the impact of the waves, driving the transverse hydraulic cylinder 4 to perform work and generate hydraulic energy, which is then transmitted to the high-pressure energy storage tank 15 to provide hydraulic energy for the power generation device.

[0056] Once the waves have calmed down, the water inside the float 5 is pumped out, causing the float 5 to float and connect the connecting device 2 to the central shaft 52, restoring it to normal working condition. It can simultaneously drive the longitudinal hydraulic cylinder 1 and the transverse hydraulic cylinder 4 to generate hydraulic energy for power generation.

[0057] The embodiments described above are merely typical examples, but the present invention is not limited to these embodiments. Those skilled in the art can make modifications without departing from the spirit and teachings of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the inventive spirit and concept of the present invention should be included within the protection scope of the present invention. Therefore, the protection scope is not limited to the above description.

Claims

1. A connection device for a wave energy power generation energy transmission mechanism, characterized in that, The device comprises an outer shell (20), a spindle (21), a nut (22), a core rod bearing (23), a locking hook (25), and a connecting seat (29). The core rod bearing (23) is installed outside the shaft of the core rod (21). The upper end of the core rod (21) is connected to the nut (22). Both the core rod bearing (23) and the nut (22) are installed inside the outer shell (20). The outer shell (20) is fixed to the top cover (28) by bolts (27). The lower part of the core rod (21) is provided with a dial wheel mounting platform and a connecting seat (29). The dial wheel mounting platform at the lower part of the core rod (21) seals the core rod bearing (23) inside the outer shell (20). The top cover (28) can be connected to the piston rod (11) of the longitudinally mounted hydraulic cylinder (1) fixed on the platform (7). The connecting seat (29) can be connected to the central shaft (5) of the float (5). 52) Connection; A dial wheel (24) is mounted on the outside of the dial wheel mounting platform at the lower part of the spindle (21), and a locking hook (25) is mounted in the outer wall of the connecting seat (29). The locking hook (25) can be connected to the central shaft (52) of the float (5); The outer edge of the dial wheel (24) is a concave-convex petal structure. The dial wheel (24) is fixed to the outside of the dial wheel mounting platform of the spindle (21) by the groove of the outer edge and the screw, and a handle (26) is mounted in the groove of the dial wheel (24) between the locking hooks (25); The locking hook (25) has an L-shaped eccentric structure and the upper hook body is mounted in the mounting ear on the outer periphery of the connecting seat (29) and can be locked in the groove of the petal structure on the outer edge of the dial wheel (24). The front end of the lower hook body of the locking hook (25) can extend into the lower end of the connecting seat (29) and connect with the central shaft connector (51) of the central shaft (52).

2. The connection device for a wave energy power generation energy transmission mechanism as described in claim 1, characterized in that, The inner cavity of the outer shell (20) is provided with a partition, and the core rod bearing (23) is installed above and below the partition. The longitudinal section of the core shaft (21) is inverted T-shaped, and the core rod bearing (23) is installed on the outside of the rod body at the upper part of the core shaft (21).

3. The connection device for a wave energy power generation energy transmission mechanism as described in claim 2, characterized in that, The mandrel bearing (23) is a tapered ball bearing, and the upper part of the mandrel (21) passes upward through the mandrel bearing (23) and the spacer to connect with the nut (22).

4. The connection device for a wave energy power generation energy transmission mechanism as described in claim 1, characterized in that, The outer edge of the dial (24) has chamfered edges on both sides of the convex petal structure.

5. The connection device for a wave energy power generation energy transmission mechanism as described in claim 1, characterized in that, The outer periphery of the connecting seat (29) is provided with mounting ears, and the locking hook (25) is installed in the mounting ears by means of a pivot pin.

6. The connection device for a wave energy power generation energy transmission mechanism as described in claim 5, characterized in that, The outer periphery of the connecting seat (29) is equipped with three or more locking hooks (25).

7. The connection device for a wave energy power generation energy transmission mechanism as described in claim 6, characterized in that, The lower part of the lower hook body of the lock hook (25) is inclined, and the thickness of the lower hook body is less than the width of the annular connecting groove in the central shaft connector (51).

8. The connection device for a wave energy power generation energy transmission mechanism as described in claim 7, characterized in that, The number of lock hooks (25) installed is half the number of grooves in the concave-convex petal structure on the outer edge of the dial (24).

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