Wave energy one-way power generation device and ocean detection buoy

Abstract

The utility model discloses a wave energy one-way power generation device and application thereof. The wave energy one-way power generation device comprises a buoy, a ratchet wheel assembly and a power generation assembly. The ratchet wheel assembly comprises an outer gear, an inner ratchet wheel and a first belt wheel which are arranged on the rotating shaft in a sleeving mode, the outer gear is stressed to rotate with the rotating shaft as the axis, and the inner ratchet wheel and the first belt wheel are tightly matched with the rotating shaft and rotate synchronously. A pawl with a rotating shaft is arranged on the outer gear, and when the outer gear rotates in the stress direction, the inner ratchet wheel can be driven to rotate in the same direction through the pawl; the power generation assembly comprises a second belt pulley and a power generator; the first belt pulley is connected with the second belt pulley through a belt; when the buoy fluctuates up and down under the impact of waves, the buoy can drive the outer gear to rotate back and forth, and further drives the second belt pulley to rotate through the belt, so that the generator generates power. Due to the fact that the structural composition is simple, the power generation requirement can be met through fluctuation energy of sea waves only through optimized matching of the buoy, the ratchet wheel assembly and the power generation assembly, and the power generation device has very outstanding advantages.

Description

Technical Field

[0001] The utility model belongs to the field of water areas, and in particular relates to a wave energy unidirectional power generation device and an ocean detection buoy. Background Art

[0002] In the existing fields of water area detection, ocean detection, ocean navigation, etc., a large amount of power is needed to achieve continuous power supply, especially in some ocean detection systems. Since the sea area is far away from the mainland and the ocean detection equipment is often operated in an unmanned state, continuous real-time monitoring is required, and the continuity of the power supply is particularly high. In the existing technology, photovoltaic power generation is usually used as the input energy of the system. However, once the weather is bad, it is easy to cause insufficient power generation. Based on this, the designer tries to increase the multiple power generation methods, such as using the fluctuation of water waves to achieve kinetic energy power generation, so as to supplement the power demand of marine equipment. However, the existing design methods are often complex in structure and difficult to assemble. The complex structure is prone to failure in various matching links. Once the equipment fails or is damaged, it takes a lot of work to repair and replace it, making this auxiliary power generation device like a chicken rib and the effect is not good. Utility Model Content

[0003] The first purpose of the utility model is to provide a wave energy unidirectional power generation device which can directly utilize wave energy to generate electricity and has a simple structure, is easy to assemble, and has strong stability;

[0004] The second purpose of the utility model is to provide an ocean detection buoy which uses the above-mentioned wave energy unidirectional power generation device to realize power generation, is easy to assemble, and has strong stability;

[0005] The third purpose of the utility model is to provide an application field of the above-mentioned wave energy unidirectional power generation device.

[0006] To achieve the above-mentioned purpose, the utility model provides a wave energy unidirectional power generation device, comprising a buoy, a ratchet assembly and a power generation assembly;

[0007] The buoy is cylindrical, and its outer wall is provided with at least one longitudinal rack and at least one limiting guide rail arranged parallel to the longitudinal rack. The limiting guide rail is used to be limited by the limiting device on the application platform to achieve the upper and lower longitudinal limitation of the buoy on the application platform;

[0008] The ratchet assembly includes a rotating shaft, and an outer gear, an inner ratchet and a first pulley sleeved on the rotating shaft. The outer gear can rotate with the rotating shaft as the axis when subjected to force, and the inner ratchet and the first pulley are closely matched with the rotating shaft and rotate synchronously; the outer gear is set in an annular shape, and the hollow is a accommodating space. The inner ratchet is located in the accommodating space, and an axially rotating pawl is provided on the outer gear. The pawl extends from the outer gear and presses against the gear teeth of the inner ratchet in a specified force direction, so that when the outer gear rotates in this force direction, the inner ratchet can be driven to rotate in the same direction through the pawl; the pawl is designed so that when the outer gear rotates in the opposite direction, the pawl is disengaged from the gear teeth of the inner ratchet, and no interference is generated, thereby not driving the inner ratchet to rotate;

[0009] The power generation assembly at least includes a second pulley and a generator driven by the second pulley to generate electricity;

[0010] The outer gear of the ratchet assembly is meshed with the longitudinal rack of the buoy, and the first pulley is connected to the second pulley by a belt; when the buoy is up and down by waves in wavy waters, it can drive the outer gear to rotate back and forth, and further drive the second pulley to rotate through the belt, so that the generator generates electricity.

[0011] Furthermore, the buoy is cylindrical, and its outer wall is provided with a longitudinal rack and three limiting guide rails, the longitudinal rack and the limiting guide rails are evenly distributed on the outer wall of the cylinder, and the limiting device on the application platform cooperates with the three limiting guide rails one by one to limit the position.

[0012] Furthermore, the upper and lower ends of the limit guide rail are both provided with stopper protrusions extending outward or to the sides.

[0013] Furthermore, the ratchet assembly includes a ratchet base, and the rotating shaft is arranged on the ratchet base.

[0014] Furthermore, the external gear is provided with a transverse shaft passing through the axis, and the transverse shaft is rotatably sleeved on the rotating shaft.

[0015] Furthermore, the pawl includes two side return shaft arms and end hook bars, the two side return shaft arms are axially rotatably arranged on the external gear, the two side return shaft arms are in a return hook shape, and the front end portion is laterally provided with an end hook bar, and the end hook bar presses against the corresponding position of the inner ratchet wheel teeth in the specified force direction.

[0016] Furthermore, all the gear teeth of the inner ratchet are distributed at intervals on the periphery of the inner ratchet.

[0017] Furthermore, the power generation assembly is provided with a power generation base, and the second pulley and the generator are both arranged on the power generation base, and then fixed to the application platform through the power generation base.

[0018] Furthermore, all the teeth of the inner ratchet are arranged in a triangular shape of the same direction evenly distributed on the periphery of the inner ratchet, wherein the angle between the first bevel of each tooth and the corresponding tangent is called the inner bevel angle α, and the angle range of α is 25°≤α≤45°; the outer angle between the second bevel of each tooth and the corresponding tangent is called the outer bevel angle β, and the angle range of β is 60°≤β≤90°; the direction of external force on the second bevel is the specified force direction of the teeth of the inner ratchet; the pawl rests against any one of the outer bevel angles β, and applies external force to the second bevel of the tooth as the external gear rotates; when the external gear rotates in the opposite direction, the pawl disengages from the first bevel of the tooth on which it is located, and does not interfere with the tooth. At this time, the external gear drives the pawl to idle, and does not drive the inner ratchet to rotate.

[0019] An ocean detection buoy is used as an application platform to use the above-mentioned wave energy unidirectional power generation device for full or partial power supply.

[0020] The ocean detection buoy is provided with a fixed plate, the fixed plate is provided with a hollow hole, the hollow hole is provided with a limiting device corresponding to the limiting guide rail of the above-mentioned wave energy unidirectional power generation device, the float passes through the hollow hole, the lower part of the float is placed in the water area below, and the limiting device and the limiting guide rail are limited one by one, so that the float can be limited in the hollow hole of the fixed plate while moving up and down longitudinally; the ratchet assembly and the power generation assembly are installed on the fixed plate to realize linkage with the float.

[0021] After adopting this patent, due to the relatively simple structure of this patent, only through the optimization of the buoy, ratchet assembly and power generation assembly, the undulating energy of the waves can be used to achieve the power generation demand. In particular, in the design scheme of unidirectional force and unidirectional power generation, there is no need to utilize the bidirectional impact force of the waves. Therefore, our patent does not require complex structural design and is easy to assemble. It is especially suitable for unmanned and remote monitoring environments such as sea area monitoring. Because machine failure or maintenance requires specialized ships (ships) to send professionals for repair or maintenance, and even more, if the relevant parts of the power generation device are damaged, at least two round trips are required for replacement and maintenance. Therefore, the design of the power generation device in this case gives priority to the advantages of simplicity, easy assembly and stable performance. Therefore, compared with other existing patents, this patent has a very prominent advantage. This patent can be applied to various fields that can utilize waves and wave energy, such as water monitoring, water navigation, and water rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of an ocean detection buoy described in an embodiment;

[0023] Figure 2 It is a schematic diagram of the assembly of a wave energy unidirectional power generation device on an ocean detection buoy;

[0024] Figure 3-5 is a schematic diagram of a working cross section of a wave energy unidirectional power generation device according to an embodiment;

[0025] Figure 6-8 is a schematic diagram of a ratchet assembly shown in an embodiment;

[0026] Figure 9-10 Schematic diagram of the power generation assembly shown in the embodiment.

[0027] Markings in the accompanying drawings:

[0028] 10. Wave energy unidirectional power generation device; 1. buoy; 11. longitudinal rack; 12. limit guide rail; 121. gear cam; 2. ratchet assembly; 21. rotating shaft; 22. external gear; 221. transverse shaft; 222. accommodating space; 23. pawl; 231. shaft return arm; 232. end hook; 24. inner ratchet; 242. gear teeth; 2421. first inclined plane; 2422. second inclined plane; 243. ratchet base; 25. first pulley; 3. power generation assembly; 31. second pulley; 311. input shaft; 32. generator; 33. belt; 34. power generation base; 4. ocean detection buoy; 41. fixing plate; 411. hollow hole; 412. limit device; 4121. fixed pulley; 4122. pulley rotating surface. DETAILED DESCRIPTION

[0029] In order to make the technical solution of the present invention more clear, the present invention is further described in detail in conjunction with the following examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] like Figure 1-10 As shown, a wave energy unidirectional power generation device 10 includes a buoy 1, a ratchet assembly 2 and a power generation assembly 3;

[0031] The buoy 1 is cylindrical, and its outer wall is provided with at least one longitudinal rack 11, and at least one limiting guide rail 12 parallel to the longitudinal rack 11 and provided on the outer wall of the buoy. The limiting guide rail 12 is used to be limited by the limiting device 412 on the application platform to achieve the upper and lower longitudinal limitation of the buoy 1 on the application platform; In this embodiment, the buoy 1 is cylindrical, and its outer wall is provided with a longitudinal rack 11 and three limiting guide rails 12, and the longitudinal rack 11 and the limiting guide rails 12 are evenly distributed on the outer wall of the cylinder, and the limiting device 412 on the application platform cooperates with the three limiting guide rails 12 one by one to limit; The upper and lower ends of the limiting guide rails 12 are provided with a blocking protrusion 121 extending outward or to the side;

[0032] like Figure 6-8As shown, the ratchet assembly 2 includes a rotating shaft 21, and an outer gear 22, an inner ratchet 24 and a first pulley 25 sleeved on the rotating shaft 21. The outer gear 22 is provided with a transverse shaft 221 passing through the axis, and the transverse shaft 221 is rotatably sleeved on the rotating shaft 21. The outer gear 22 can rotate with the rotating shaft 21 as the axis when subjected to force;

[0033] The inner ratchet 24 and the first pulley 25 are tightly matched with the rotating shaft 21 and rotate synchronously. In some other embodiments, the inner ratchet 24 and the first pulley 25 can also be realized by mutual engagement of non-circular cross-sectional structures to realize synchronous rotation of the inner ratchet 24 and the first pulley 25 with the rotating shaft 21; the outer gear 22 is set to be annular, and the hollow is a accommodating space 222. The inner ratchet 24 is located in the accommodating space 222, and a rotatable pawl 23 is provided on the outer gear 22. The pawl 23 includes two side return shaft arms 231 and end hook strips 232. The two side return shaft arms 231 are axially rotatably arranged on the outer gear 22. The two side return shaft arms 231 are in a return hook shape, and the front end is laterally provided with an end hook strip 232, and the end hook strip 232 is pressed against the corresponding position of the gear teeth 242 of the inner ratchet 24 in the specified force direction, so that when the outer gear 22 rotates in this force direction, the inner ratchet 24 can be driven to rotate in the same direction through the pawl 23;

[0034] like Figure 7 As shown, in this embodiment, all the gear teeth 242 of the inner ratchet 24 are arranged in a triangular shape of the same direction evenly distributed on the periphery of the inner ratchet 24, wherein the angle between the first inclined surface 2421 of each gear tooth 242 and the corresponding tangent is called the inner bevel angle α, and the angle range of α is 25°≤α≤45°; the outer angle between the second inclined surface 2422 of each gear tooth 242 and the corresponding tangent is called the outer bevel angle β, and the angle range of β is 60°≤β≤90°; the pawl 23 abuts against any one of the outer bevel angles β, and as the outer gear 22 rotates, an external force is applied to the second bevel surface 2422 of the gear tooth 242, which is the specified force direction. This embodiment is designed so that the direction in which the inner ratchet rotates counterclockwise is the specified force direction; and the angle range of β The design of 60°≤β≤90° makes the outer bevel angle β form a plane-like or hook-like shape, so that the pawl 23 is not easy to slip when it leans against the second bevel 2422, and a stable hooking effect can be continuously achieved; and the setting of the inner bevel angle α can ensure that the first bevel 2421 presents a relatively flat slope, so that when the outer gear 22 rotates in the opposite direction, the pawl 23 disengages from the first bevel 2421 from the teeth 242 of the inner ratchet 24, and does not interfere with the teeth 242 of the inner ratchet 24, thereby not driving the inner ratchet 24 to rotate; in the present embodiment, all the teeth 242 are spaced apart on the periphery of the inner ratchet 24, and the looser spacing distribution is more conducive to the pawl 23 being able to disengage from the teeth 242 of the inner ratchet 24 in time when the outer gear 22 rotates in the opposite direction.

[0035] The ratchet assembly 2 includes a ratchet base 243 , and the rotating shaft 21 is disposed on the ratchet base 243 .

[0036] like Fig. 9 , 10 As shown, the power generation component 3 includes at least a second pulley 31 and a generator 32 driven by the second pulley 31 to generate electricity. The second pulley 31 is provided with an input shaft 311 meshed with the generator 32. The input shaft 311 is controlled to rotate to drive the generator 32 to generate electricity.

[0037] The outer gear 22 of the ratchet assembly 2 is meshed with the longitudinal rack 11 of the buoy 1, and the first pulley 25 is connected to the second pulley 31 through a belt 33; when the buoy 1 is up and down by waves in wavy waters, it can drive the outer gear 22 to rotate, and further drive the second pulley 31 to rotate through the belt 33, so that the generator 32 generates electricity. In the design of this patent, due to the ingenious design that the pawl 23 is against the gear teeth 242 of the inner ratchet 24 in the specified force direction, when the waves drive the buoy 1 up and down, only in the specified direction (upward or downward direction), the outer gear 22 driven by it can drive the pawl 23 to generate a pulling force or a thrust on the inner ratchet 24, so as to make the inner ratchet 24 rotate in this specified direction, thereby driving the second pulley 31 to rotate, so as to realize the power generation of the generator 32; in this embodiment, it is designed that the buoy 1 is driven by the ups and downs of the waves, and the pawl 23 on the outer gear 22 generates a pulling force or a thrust on the inner ratchet 24 in a specified direction during the upward floating process. This embodiment is set as a pulling effect, and the specific reference is made to the following description.

[0038] like Figure 1-6 As shown, an ocean detection buoy 4 is used as an application platform to use the above-mentioned wave energy unidirectional power generation device 10 for full or partial power supply.

[0039] Specifically, the ocean detection buoy 4 is provided with a fixed plate 41, the fixed plate 41 is provided with a hollow hole 411, the hollow hole 411 is provided with three limiting devices 412 corresponding one-to-one with the limiting guide rail 12 of the buoy 1, the buoy 1 passes through the hollow hole 411, and the lower part of the buoy 1 is placed in the water area below. The limiting devices 412 are limited one-to-one with the limiting guide rail 12, so that the buoy 1 can be limited in the hollow hole 411 of the fixed plate 41 while moving up and down longitudinally; the ratchet assembly 2 and the power generation assembly 3 are installed on the fixed plate 41, and are linked with the buoy 1 to finally achieve the effect of power generation by the generator 32, and the generator 32 directly supplies power to the electrical facilities on the ocean detection buoy 4 through an external circuit.

[0040] like Figure 1-3As shown, in this embodiment, the limiting guide rail 12 is a limiting convex strip protruding outward, and the limiting device 412 of the application platform is designed as three groups of fixed pulleys fixed to the fixed plate 41, each group of fixed pulleys is provided with upper and lower fixed pulleys 4121, and the three groups of fixed pulleys are limited one by one with the three limiting convex strips, respectively, and the limiting convex strips are respectively clamped on the pulley rotating surfaces 4122 of the upper and lower fixed pulleys 4121, and only move up and down in the pulley rotating surfaces 4122. With such a design, the limiting mode of the fixed pulley group can minimize the friction resistance of the limiting device 412 to the buoy 1, which is beneficial to the buoy 1 to use the wave energy as completely as possible when the buoy 1 is subjected to the hydraulic impact of the water area and the undulating waves drive the buoy 1 to float up and down, thereby reducing energy loss.

[0041] The upper and lower ends of the limiting convex strip are both provided with stop convex blocks 121 extending toward both sides to ensure that the buoy 1 will not slip from the fixed pulley 4121 during the up and down floating process, thereby ensuring the normal use of the power generation device.

[0042] The power generation assembly 3 is provided with a power generation base 34, the second pulley 31 and the generator 32 are both arranged on the power generation base 34, and then fixed to the application platform (fixed plate 41) through the power generation base 34; the ratchet assembly 2 is fixed to the application platform (fixed plate 41) through the ratchet base 243.

[0043] like Figure 4 , 5 As shown in FIG. 8 , when the buoy 1 floats upward due to the impact of the waves, it drives the outer gear 22 meshing with it to rotate counterclockwise. See the movement direction marked by the arrow in the figure. At this time, the outer gear 22 drives the pawl 23 thereon to rotate together, and the end hook 232 of the pawl 23 presses against the gear teeth 242 of the inner ratchet 24. Figure 8 As shown, the outer bevel (second bevel 2422) of the corresponding gear tooth 242 is pressed against, and a counterclockwise dragging force is applied to the gear tooth 242 (inner ratchet 24), so that the inner ratchet 24 rotates counterclockwise, thereby driving the generator 32 to generate electricity; when the buoy 1 sinks smoothly, the outer gear 22 is driven to rotate clockwise due to the meshing action, and the end hook 232 of the pawl 23 is disengaged from the first bevel 2421 of the gear tooth 242 where it is located. In particular, the gear teeth 242 are spaced and distributed on the periphery of the inner ratchet 24, which means that there is enough free space between each gear tooth 242 to make way for the pawl 23, and it is ensured as much as possible that the end hook 232 of the pawl 23 does not interfere with the gear tooth 242. At this time, the outer gear 22 drives the pawl 23 to rotate idly, and does not drive the inner ratchet 24 to rotate, so it will not drive the generator 32, and the generator 32 does not work at this time. Such a design avoids the need for a more complex structural design in order to use bidirectional power generation, and simplifies the structure of the wave energy power generation device as much as possible, so that it can better achieve a long-term, single, and stable working effect.

[0044] In this embodiment, the pawl 23 is axially rotatably arranged on the outer gear 22. Specifically, the pawl 23 is axially rotatably arranged on the outer gear 22 through the return shaft arms 231 on both sides thereof. Therefore, when the outer gear 22 rotates counterclockwise, the end hook bar 232 of the front end of the pawl 23 is just hooked on the second inclined surface 2422 of the corresponding gear tooth 242. Since the pawl 23 can rotate axially, when subjected to force, the pawl 23 produces a certain axial counterclockwise rotation effect, and the end hook bar 232 of the pawl 23 will further hold (press against) the second inclined surface 242. 2 until it abuts (presses) against the outer bevel angle β, and the angle range of β is 60°≤β≤90° to ensure that the end hook 232 of the pawl 23 is clamped therein to avoid slipping off the gear teeth 242 during rotation; when the outer gear teeth 242 rotate in the opposite direction (clockwise), the end hook 232 of the pawl 23 leaves the gear teeth 242 and disengages from the first bevel surface 2421 of the gear teeth 242, and the counterclockwise axial rotation force of the pawl 23 disappears, and the pawl 23 returns to the natural state, which is more conducive to the pawl 23 leaving the gear teeth 242 and effectively avoiding interference with the inner ratchet 24.

[0045] The buoy 1 rises and falls in the waves, and the power generation device realizes unidirectional power generation of wave energy. It has a significant power generation effect and a simple structure. It is very practical and easy to assemble, and has far-reaching industry promotion significance. This technology can be widely used in various fields such as water monitoring, water navigation, water rescue, etc., especially in areas such as the ocean where the waves are relatively turbulent.

[0046] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A wave energy unidirectional power generation device, characterized in that: It includes a buoy, a ratchet assembly and a power generation assembly; The buoy is cylindrical, and its outer wall is provided with at least one longitudinal rack and at least one limiting guide rail arranged parallel to the longitudinal rack. The limiting guide rail is used to be limited by the limiting device on the application platform to achieve the upper and lower longitudinal limitation of the buoy on the application platform; The ratchet assembly includes a rotating shaft, and an outer gear, an inner ratchet and a first pulley sleeved on the rotating shaft. The outer gear can rotate with the rotating shaft as the axis when subjected to force, and the inner ratchet and the first pulley are closely matched with the rotating shaft and rotate synchronously; the outer gear is set in an annular shape, and the hollow is a accommodating space. The inner ratchet is located in the accommodating space, and an axially rotating pawl is provided on the outer gear. The pawl extends from the outer gear and presses against the gear teeth of the inner ratchet in a specified force direction, so that when the outer gear rotates in this force direction, the inner ratchet can be driven to rotate in the same direction through the pawl; the pawl is designed so that when the outer gear rotates in the opposite direction, the pawl is disengaged from the gear teeth of the inner ratchet, and no interference is generated, thereby not driving the inner ratchet to rotate; The power generation assembly at least includes a second pulley and a generator driven by the second pulley to generate electricity; The outer gear of the ratchet assembly is meshed with the longitudinal rack of the buoy, and the first pulley is connected to the second pulley by a belt; when the buoy is up and down by waves in wavy waters, it can drive the outer gear to rotate back and forth, and further drive the second pulley to rotate through the belt, so that the generator generates electricity.

2. A wave energy unidirectional power generation device as claimed in claim 1, characterized in that: The buoy is cylindrical, and its outer wall is provided with a longitudinal rack and three limiting guide rails, the longitudinal rack and the limiting guide rails are evenly distributed on the outer wall of the cylinder, and the limiting device on the application platform cooperates with the three limiting guide rails one by one to limit the position.

3. A wave energy unidirectional power generation device as claimed in claim 1, characterized in that: The upper and lower ends of the limit guide rail are both provided with stopper protrusions extending outward or to the side.

4. A wave energy unidirectional power generation device as claimed in claim 1, characterized in that: The ratchet assembly comprises a ratchet base, and the rotating shaft is arranged on the ratchet base.

5. A wave energy unidirectional power generation device as claimed in claim 1, characterized in that: The external gear is provided with a transverse shaft passing through the axis, and the transverse shaft is rotatably sleeved on the rotating shaft.

6. A wave energy unidirectional power generation device as claimed in claim 1, characterized in that: The pawl includes two side return shaft arms and end hook bars. The two side return shaft arms are axially rotatably arranged on the external gear. The two side return shaft arms are in a return hook shape, and the front end is laterally provided with an end hook bar. The end hook bar presses against the corresponding position of the gear teeth of the inner ratchet in the specified force direction.

7. A wave energy unidirectional power generation device as claimed in claim 1, characterized in that: All the gear teeth of the inner ratchet are distributed at intervals on the periphery of the inner ratchet.

8. A wave energy unidirectional power generation device as claimed in claim 1, characterized in that: The power generation assembly is provided with a power generation base, and the second pulley and the generator are both arranged on the power generation base, and then fixed to the application platform through the power generation base.

9. A wave energy unidirectional power generation device according to any one of claims 1 to 8, characterized in that: All the teeth of the inner ratchet are arranged in a triangular shape of the same direction evenly distributed on the periphery of the inner ratchet, wherein the angle between the first inclined surface of each tooth and the corresponding tangent is called the inner bevel angle α, and the angle range of α is 25°≤α≤45°; the outer angle between the second inclined surface of each tooth and the corresponding tangent is called the outer bevel angle β, and the angle range of β is 60°≤β≤90°; the external force direction of the second inclined surface is the specified force direction of the teeth of the inner ratchet; the pawl rests on any one of the outer bevel angles β, and applies external force to the second bevel surface of the tooth as the external gear rotates; when the external gear rotates in the opposite direction, the pawl disengages from the first bevel surface of the tooth on which it is located, and does not interfere with the tooth. At this time, the external gear drives the pawl to idle, and does not drive the inner ratchet to rotate.

10. An ocean detection buoy, characterized in that: The wave energy unidirectional power generation device according to any one of claims 1 to 9 is used as an application platform for full or partial power supply.

11. An ocean detection buoy as claimed in claim 10, characterized in that: A fixing plate is provided on it, and the fixing plate is provided with a hollow hole. The hollow hole is provided with a limiting device which corresponds one-to-one to the limiting guide rail of the wave energy unidirectional power generation device according to any one of claims 1 to 9. The buoy passes through the hollow hole, and the lower part of the buoy is placed in the water area below. The limiting device and the limiting guide rail are limited one-to-one, so that the buoy can be limited in the hollow hole of the fixing plate while moving up and down longitudinally; the ratchet assembly and the power generation assembly are installed on the fixing plate to realize linkage with the buoy.

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