Autonomous wave-following locomotion device

By designing an automatic wave-trending walking device, using wave drop potential energy to drive the rotation of the rotating shaft, the problem of wave energy utilization is solved, and the automatic application of offshore mobile platforms is realized, suitable for marine operations, power generation, and pumping water or pumping air.

WO2025168057A1PCT designated stage Publication Date: 2025-08-14CHU
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Patent Information

Application Number
PCT/CN2025/076224
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-02-08
Filing Date
2025-02-07
Publication Date
2025-08-14

AI Technical Summary

Technical Problem

The prior art is difficult to effectively utilize wave energy, especially wave energy far away from the shore, and lacks a stable offshore mobile platform.

Method used

An automatic wave-trending walking device is designed, including a straight rod or a tight rope floating on the sea surface, and a wave-trending walking component is installed. The wave-trending walking component is used to drive the rotation axis through the eccentric water inlet and the toggle blade to output power, so as to realize the automatic movement of the floating body between the peaks and troughs.

Benefits of technology

It realizes the utilization of wave energy and the automation of offshore mobile platforms, and is suitable for marine operations, power generation, water pumping or air pumping, and has good industrial practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

An autonomous wave-following locomotion device, comprising a straight rod (22) or a tensioned cable floating on the sea surface, two groups of wave-following locomotion assemblies (8), and a floating body. The two groups of wave-following locomotion assemblies are mounted on the straight rod or the tensioned cable and are spaced a certain distance apart; and two locomotion assemblies are connected by means of a connecting member (5). Each wave-following locomotion assembly in the two groups of wave-following locomotion assemblies comprises a flared water inlet (84) and a cavity (89), and the cavity is provided with a water outlet (82), an impeller (86), an impeller water inlet (85), and a rotating shaft (87). Seawater flows in through a water inlet opening of the flared water inlet, and the impeller is driven by the potential energy from a height difference, to drive the rotating shaft to rotate to output power, thereby driving the floating body to move. The device has wave-following properties, enabling the floating body to move towards the area with the greatest crest-to-trough difference, and can be applied in marine operations, power generation, water pumping, or gas pumping.
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Description

Automatic wave-moving device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the basis of the Chinese patent application filed with the State Intellectual Property Office of China on February 8, 2024, with application number: 202410778930, and the name of the invention: "An automatic wave-tending walking device", and claims partial priority thereof. The content of the Chinese patent application is hereby introduced into the text of this application. Technical Field

[0003] The present invention relates to an automatic moving device, in particular to a device which utilizes the energy of ocean waves for movement. Background Art

[0004] Wave energy is enormous, yet humans have long lacked the ability to harness it effectively. This is primarily due to the small wave drop and the vast expanse of the ocean, which lacks a solid foothold. While some have designed devices to absorb the kinetic energy of waves near shore, limited coastline resources have prevented offshore waves from being utilized. Summary of the Invention

[0005] The purpose of the present invention is to design an automatic moving device using the characteristics of waves. The automatic moving device has wave-seeking properties, so that the floating body has the largest wave crest and trough difference, which is applied to human marine life.

[0006] An automatic wave-seeking walking device of the present invention comprises a straight rod or a taut rope that is not parallel to the wave line and floats on the water surface, two groups of wave-seeking walking components are installed on the straight rod or the taut rope, each group comprises one or more wave-seeking walking components, and the distance between the two groups of wave-seeking walking components is greater than the distance between the wave-seeking walking components in each group; the wave-seeking walking components are submerged in water at the wave crest and emerge from the water surface at the wave trough; the wave-seeking walking components comprise a water inlet, a cavity, a water outlet, a toggling blade, and a rotating shaft; the toggling blade is installed in the cavity, and the toggling blade drives the rotating shaft to rotate, and the water inlet or the water outlet is eccentric to the rotating shaft; when the wave crest is higher than the water inlet, water flows into the cavity from the water inlet, and when the wave crest is higher than the water inlet, water flows into the cavity from the water inlet, and when the walking component is upwardly exposed to the water surface, the accumulated water in the cavity and above pushes the toggling blade downward to rotate and is discharged from the water outlet, the blade drives the rotating shaft to rotate, and the rotating shaft rotates to drive the output power.

[0007] More specifically, it is a pair of wave-tending walking components; the pair of wave-tending walking components are installed on a straight pole or a taut rope floating on the sea surface, and there is a distance between them, and a group of wave-tending walking components are connected by a connecting piece.

[0008] Preferably, a float is provided between the group of wave-treading walking components, and the float is installed on a straight pole or a rope.

[0009] Preferably, the water inlet is equipped with a water volume regulating member.

[0010] Preferably, the straight rod or taut rope is substantially perpendicular to the parallel lines of the waves or troughs.

[0011] Preferably, one side of the straight rod is a rack, the blade shaft extends out of the cavity and is equipped with a driving gear, which is engaged with the rack.

[0012] The transmission modes of the blade shaft rotation drive output power are: gear transmission, rope transmission, chain structure, and belt transmission.

[0013] The floating body is a buoy, which indicates the position or safety of the object or part that needs to be worked on.

[0014] The buoy is installed on a rocker arm so that the rocker arm swings toward the wave crest and the wave trough to obtain the maximum swing amplitude, thereby obtaining the maximum mechanical power energy, which can be used for power generation or pumping water or gas.

[0015] When the waves are large: within a wave cycle, the water entry route of the front side part of the walking assembly facing the waves is shorter than the water exit route; that is, the walking assembly on the straight pole propelled against the waves has a large draft, pulling the buoy to automatically move outward; when the waves are small: within a wave cycle, the water entry route of the rear side part of the walking assembly facing the waves is longer than the water exit route; that is, the walking assembly on the straight pole not propelled against the waves has a large draft, pulling the buoy to automatically move inward;

[0016] That is, whether the waves are large or small, the rocker arm can achieve maximum swing within half a wave cycle. The same path can also achieve maximum wave avoidance;

[0017] According to the above, the walking component has a wave-seeking principle, and the buoy can be moved in the direction of the required waves as needed; BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of an automatic wave-tending walking device;

[0019] Figure 2 is a diagram showing the positional relationship of a group of wave-moving components;

[0020] Figure 3 is a schematic diagram of the transmission mode of the walking assembly;

[0021] Figure 4 is a schematic diagram of the second transmission mode of the walking assembly;

[0022] Figure 5 is a schematic diagram of the third transmission mode of the walking assembly;

[0023] Figure 6 (a) is a cross-sectional view of the AA plane in Figure (b) of the walking assembly, and (b) is a schematic diagram of the automatic wave-tending walking device;

[0024] FIG7 is a diagram showing the movement of the automatic wave-tending walking device in waves;

[0025] FIG8 is a schematic diagram of the installation of the automatic wave-tending walking device according to Example 2;

[0026] FIG9 is a schematic diagram of the position of the automatic wave-tending walking device and the floating body in Example 3. DETAILED DESCRIPTION

[0027] Example 1:

[0028] As shown in Figures 1 and 2, the automatic wave-moving walking device includes a straight rod (22) or a taut rope floating on the sea surface, and two groups of wave-moving walking components (8). In this embodiment, each group of wave-moving walking components is provided with one wave-moving walking component. There is a certain distance between the two walking components and they are directly connected by a connecting member (5); the straight rod is roughly perpendicular to the parallel line of the waves or wave troughs.

[0029] A rack (28) is provided on one side of the straight rod (22). As shown in FIG6 , the walking assembly (8) includes a water inlet expansion port (84), a cavity (89), a water outlet port (82), an impeller (86), an impeller water inlet (85), and a rotating shaft (87). The float is installed on the straight rod (22). The device can be floated on the water surface by a guide or a limit mechanism, and the opening is directed above the water surface. The impeller water inlet (85) is arranged above the impeller (86) and is eccentric to the impeller rotating shaft (87). When the waves are at a high position, water enters the opening from above. The water from above falls and because the impeller rotating shaft (87) is eccentric, the impeller (86) is pushed by the water from above on the water inlet side and rotates. The rotating shaft (87) rotates and is driven by the transmission mechanism, and the automatic wave-seeking walking device can move. FIG4 shows the movement path of the automatic wave-seeking walking device under large waves and small waves. Under large waves, the automatic wave-seeking walking device moves a longer distance. The water inlet (85) is provided with an adjusting member (85.1) for adjusting the water volume of the water inlet. The water outlet (82) is provided with a one-way valve (88) so that water cannot enter the cavity from the water outlet (82).

[0030] The rotating shaft output of the automatic wave-tending walking device is shown in Figure 3. The rotating shaft (87) extends out of the cavity (89) and is equipped with a synchronous gear (81.1). The synchronous gear (81.1) is engaged with the rack (28) on the straight rod. A roller (81.4) is also provided at the upper end of the synchronous gear. When the automatic wave-tending walking device (8) is on the sea surface, seawater flows into the water inlet expansion (84), and the seawater rushes down the impeller (86) from the eccentric water inlet (85). The impeller (86) is driven by the water inflow to rotate in the direction of the water inlet side. The rotating shaft (81) and the synchronous gear (81.1) thereon rotate synchronously. The synchronous gear (81.1) is engaged with the side rack (28) of the straight rod, and the roller (81.4) rolls on the opposite side of the straight rod. Therefore, the automatic wave-tending walking device moves in the direction of the wave height on the rocker arm, so that the buoy can rise or fall roughly at the high position of the wave crest, with a higher drop.

[0031] The water inlets (85) of the two walking assemblies (8) are roughly symmetrical, that is, one side away from the other, or one side close to the other, so that the two wave-seeking walking assemblies move in opposite directions when affected by water from above. In this embodiment, the water inlets of the two walking assemblies are arranged on the side away from each other. According to the wave-seeking characteristics of the walking assemblies, when a certain walking assembly has more water inflow, it will move toward the side of the walking assembly with more water inflow, and drive the two groups or two wave-seeking walking assemblies and the floating body in the middle to move on the straight rod, that is, drive the floating body moving mechanism assembly to move on the straight rod so that it can maximize the fluctuation with the changing waves.

[0032] The second mode of outputting the rotating shaft of the automatic wave-chasing walking device is shown in FIG4 . The extending end of the rotating shaft (87) is provided with a synchronous gear (81.1) and a driven wheel (81.2). A roller (81.4) is provided at the upper end of the synchronous gear. The synchronous gear (81.1) and the driven wheel (81.2) are engaged with the rack (28) of the straight rod (22). The roller (81.4) rolls on the opposite side of the straight rod. The cooperation of these three points stabilizes the wave-chasing moving device on the rocker arm, and the water inlet expansion port (84) is positioned upward.

[0033] FIG5 shows a third method for outputting the rotating shaft of the automatic wave-treading walking device. This method differs from the second method in FIG4 in that a transmission wheel (81.3) is provided below the synchronous gear, and power is output through the rotating shaft of the transmission wheel (81.3). Because the transmission wheel is moved downward, this device is lower in the water and has a higher impact force from the water above.

[0034] FIG7 shows a diagram of the movement of the automatic wave-tending walking device in large and small waves. Line 100 in the figure represents the movement in large waves, i.e., when the waves are large, the walking component in the wave-facing direction has a large draft, and the floating body is automatically dragged outward, so that the undulation and swing of the floating body can be maximized within half a wave cycle (half a wave cycle refers to the time required for the wave to pass through adjacent crests and troughs, which is called half a wave cycle).

[0035] Line 200 in the figure shows the trend during small waves, that is, when the waves are small, the draft of the walking component at the non-wave-facing propulsion end is large, and the automatic inward movement of the automatic wave-following walking device can maximize the fluctuation of the floating body within half a wave cycle.

[0036] Example 2:

[0037] As shown in Figure 8, it is a floating platform on the sea surface. The straight rod 22 is a rocker arm perpendicular to the parallel line of the waves. It takes the ups and downs of waves and troughs and extends from the platform to the sea surface in the direction of facing the waves and the direction of back waves. Two wave-seeking walking devices 8 are installed on the rocker arms in the direction of facing the waves and the direction of back waves. A floating body 29 is installed between the two automatic wave-seeking walking devices. The wave-seeking walking device drives the floating body to the position of the wave crest.

[0038] Example 9:

[0039] A straight rod or a taut rope 22 is fixed between two buoys 29, and an automatic wave-following walking device 8 is installed on the straight rod or rope 22. The straight rod or rope 22 is not parallel to the wave line, and is preferably perpendicular to the wave line. There is a distance between the two automatic wave-following walking devices. When they move under the waves, their drafts are different, and the two move in the same direction or different directions, or at different times.

[0040] The above embodiments are only used to further illustrate a device for automatically following the waves and moving according to the height difference of the waves of the present invention. However, the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention fall within the scope of protection of the technical solution of the present invention. Industrial Applicability

[0041] The present invention provides an automatic wave-seeking walking device, comprising a straight rod or a taut rope floating on the sea surface, and two sets of wave-seeking walking components. The two wave-seeking walking components are mounted on the straight rod or the taut rope, spaced apart, and connected by a connector. The walking components include a water inlet flare, a water inlet, a cavity, a water outlet, a toggle blade, and a blade shaft. Seawater flows in through the water inlet, using the potential energy of the drop and eccentricity to push the blades, which in turn rotate the blade shaft, which then rotates to generate power. The device has wave-seeking properties, causing the floating body to move toward the maximum wave crest and trough drop. It can be used in marine operations, power generation, water pumping, or gas pumping, and has good industrial applicability.

Claims

1. An automatic wave-moving device, characterized in that: The boat is constructed of a plurality of materials and is equipped with a plurality of wheels, each of which is adapted to move along the water surface and to move relative to the water surface. The boat is constructed of a plurality of wheels, each of which is adapted to move along the water surface and to move relative to the water surface. The boat is constructed of a plurality of wheels, each of which is adapted to move along the water surface and to move relative to the water surface.

2. The automatic wave-treading walking device according to claim 1, characterized in that: The straight rod or the taut rope is provided with a float and floats on the water surface, or is suspended and floats on the water surface.

3. The automatic wave-moving device according to claim 1, characterized in that: It also includes an expansion port above the water inlet, and the water inlet is also equipped with a water volume regulating member; the water outlet is provided with a one-way valve.

4. The automatic wave-treading walking device according to claim 1, characterized in that: A float is provided between the two sets of wave-seeking walking components, and the float is installed on a straight rod or a taut rope. The wave-seeking walking components move to push or pull the float in a preset direction; when facing the waves, the front wave-seeking walking component pulls the float in the preset direction, and when facing the waves, the rear wave-seeking walking component pushes the float in the preset direction.

5. The automatic wave-treading walking device according to claim 1, characterized in that: One side of the straight rod is a rack, and the blade shaft extends out of the cavity and is equipped with a driving gear that meshes with the rack.

6. The automatic wave-treading walking device according to claim 5, characterized in that: A driven wheel is also provided, and a roller is provided on the upper end of the synchronous gear; the driving gear and the driven wheel are engaged with the rack of the straight rod, and the roller rolls on the opposite side of the straight rod.

7. The automatic wave-treading walking device according to claim 5, characterized in that: A transmission wheel is arranged below the driving gear, and power is output through the rotating shaft of the transmission wheel.

8. The automatic wave-treading walking device according to claim 1, characterized in that: The transmission modes of the blade shaft rotation drive output power are: gear transmission, rope transmission, chain structure, and belt transmission.

9. The automatic wave-treading walking device according to claim 2, characterized in that: The floating body is hollow or inflatable or light and floatable.

10. The automatic wave-treading walking device according to claim 2, characterized in that: The buoy is installed on a rocker arm so that the rocker arm swings toward the wave crest and the wave trough to obtain the maximum swing amplitude, thereby obtaining the maximum mechanical power energy, which can be used for power generation or pumping water or gas.

Citation Information

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