Propulsion-power supply integrated buoy

Abstract

The utility model relates to the technical field of buoy equipment, in particular to a propulsion-power supply integrated buoy which comprises a buoy module, a rotating module arranged below the buoy module and a power generation module arranged in the buoy module. A driving shaft of the power generation module is arranged in the vertical direction, and the lower end of the driving shaft is connected with the rotating module; the rotating module comprises a hydrofoil part, the hydrofoil part comprises a plurality of hydrofoil blades, and a blade rotating shaft of each hydrofoil blade is parallel to the driving shaft and is distributed in the circumferential direction of the driving shaft; switching between a power supply mode and a propulsion mode is achieved by adjusting the angle of each hydrofoil blade, and in the power supply mode, the angle of each hydrofoil blade is adjusted to enable water flow to flow to drive the rotating module to rotate so as to drive a driving shaft of the power generation module to rotate for power generation; and in the propelling mode, the angles of the hydrofoil blades are adjusted, so that lift force in the target advancing direction is generated under the action of water flow, and the buoy is propelled.

Description

Technical Field

[0001] This application relates to the technical field of buoy devices, and particularly to a propulsion-power supply integrated buoy. Background Art

[0002] A buoy refers to a navigation mark floating on the water surface. It is anchored at a designated position to mark the scope of the waterway, indicate shoals, navigational hazards, or represent special-purpose water surface aids to navigation. There are often signal lights installed on the buoy for assisting navigation in waters with day and night navigation. In addition, some buoys are also equipped with devices such as radar transponders, radio beacons, fog warning signals, and oceanographic survey instruments. In the prior art, the power supply systems of buoys mostly use batteries or solar cells for power supply. Using batteries alone for power supply requires regular battery replacement, increasing maintenance costs. The solar cell power supply system has reduced reliability due to the existence of rainy and cloudy days. In addition, when the buoy needs to move its position in the water, such as returning to the correct position when the working position deviates or being retrieved and maintained on the shore, it often needs to be moved by setting up a propulsion device or manpower, undoubtedly increasing material and labor costs.

[0003] Therefore, it is of great significance to provide a new type of buoy that can integrate power supply and propulsion. Summary of the Utility Model

[0004] The purpose of this application is to provide a propulsion-power supply integrated buoy that can use water energy to supply power to the buoy and propel it forward, and solve the above problems existing in the prior art.

[0005] The embodiments of this application can be implemented through the following technical solutions:

[0006] A propulsion-power supply integrated buoy includes a buoy module, a rotation module arranged below the buoy module, and a power generation module arranged inside the buoy module; the drive shaft of the power generation module is arranged in the vertical direction and is fixedly connected to the rotation module; the rotation module includes a hydrofoil part, the hydrofoil part includes a plurality of hydrofoil blades, each hydrofoil blade can rotate around its own blade rotation shaft, and the blade rotation shafts of each hydrofoil blade are parallel to the drive shaft and are distributed circumferentially along the drive shaft; the switching between the power supply mode and the propulsion mode is realized by adjusting the angles of each hydrofoil blade. In the power supply mode, the angles of each hydrofoil blade are adjusted so that the flowing water drives the rotation module to rotate, and then drives the drive shaft of the power generation module to rotate for power generation; in the propulsion mode, the angles of each hydrofoil blade are adjusted so that a lift force in the target traveling direction is generated under the action of the water flow to propel the buoy.

[0007] Further, in the power supply mode, adjusting the angles of each hydrofoil blade means adjusting the inclination angles α of each hydrofoil blade to be the same, and the inclination angle α is a straight line l connecting the center of the circle formed by the blade rotation shafts of each hydrofoil blade and the center of the blade rotation shaft on the same horizontal plane1 The included angle with the straight line l where the chord of the hydrofoil blade is located 2 of the included angle

[0008] Further, in the propulsion mode, adjusting the angles of the hydrofoil blades means adjusting the same angle of attack β of each hydrofoil blade, and the angle of attack β is the included angle between the oncoming flow direction and the chord of the hydrofoil blade

[0009] Further, the rotation module further includes a first connecting portion, the first connecting portion extends radially along the drive shaft, the drive shaft is connected to the upper end of the first connecting portion, and each hydrofoil blade is rotatably connected to the lower end of the first connecting portion along the circumferential direction of the drive shaft around its respective blade rotating shaft

[0010] Further, the first connecting portion is a circular cover plate, and the drive shaft is connected to the center of the first connecting portion

[0011] Further, the rotation module further includes a fixing portion, which is located at the lower part of the hydrofoil portion and is rotatably connected to each hydrofoil blade

[0012] Further, each hydrofoil blade is distributed at equal angles along the circumferential direction of the drive shaft

[0013] Further, the hydrofoil blade has an airfoil profile, which includes a leading edge, a trailing edge, and a blade rotating shaft. The curvature of the leading edge is smaller than that of the trailing edge, and the leading edge and the trailing edge are continuously transitioned to form two wing surfaces connected between the leading edge and the trailing edge

[0014] Further, the rotation module further includes a number of motors equivalent to the number of hydrofoil blades. The motors are located on the first connecting portion, and the drive shafts of the motors and the blade rotating shafts of the hydrofoil blades corresponding to the motors are coaxially arranged

[0015] Further, it further includes a flow velocity and flow direction monitoring module and an energy storage module. The flow velocity and flow direction monitoring module is used to monitor the real-time water flow velocity and direction, and the energy storage module is used to store the electric energy generated by the power generation module

[0016] The propulsion - power supply integrated buoy provided by the embodiment of the present application has at least the following beneficial effects

[0017] The propulsion-power supply integrated buoy of the present application can switch between the power supply mode and the propulsion mode by adjusting the angles of the hydrofoil blades. When in the power supply mode, by adjusting the inclination angle of the hydrofoil blades, the hydrofoil part forms a vertical-axis water turbine, which can convert water energy into electrical energy to power the buoy, saving costs, being less affected by weather, and having strong applicability. When in the propulsion mode, by adjusting the angle of attack of the hydrofoil blades, the hydrofoil part forms a straight-wing thruster, which can use the lift generated by the water flow to boost the buoy to move in the target direction. In addition, the angle of attack of each hydrofoil blade can be adjusted to the optimal angle according to the incoming flow direction, which can better adapt to different incoming flow directions, improve the utilization rate of water energy, and save energy. Description of the Drawings

[0018] Figure 1 Schematic diagram of the overall structure of the propulsion-power supply integrated buoy provided by an embodiment of the present application;

[0019] Figure 2 Front view of the propulsion-power supply integrated buoy provided by an embodiment of the present application;

[0020] Figure 3 Schematic diagram of the structure of the hydrofoil blade provided by an embodiment of the present application;

[0021] Figure 4 Top view of the hydrofoil blade provided by an embodiment of the present application;

[0022] Figure 5 Schematic diagram of the power supply mode of the propulsion-power supply integrated buoy provided by an embodiment of the present application;

[0023] Figure 6 Schematic diagram of the propulsion mode of the propulsion-power supply integrated buoy provided by an embodiment of the present application;

[0024] Reference numerals in the drawings

[0025] Buoy module 1, buoy light 11, guardrail 12, buoy main body 13, rotation module 2, motor 21, first connection part 22, hydrofoil part 23, leading edge 231, trailing edge 232, blade rotating shaft 233, wing surface 234, fixing part 24, power generation module 3; Detailed Embodiments

[0026] Hereinafter, the present application will be further described based on preferred embodiments with reference to the drawings.

[0027] In addition, for the convenience of understanding, various components in the drawings are enlarged or reduced, but this is not intended to limit the protection scope of the present application.

[0028] Singular forms of words also include plural meanings, and vice versa.

[0029] In the description of the embodiments of the present application, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the products of the embodiments of the present application are habitually placed during use, it is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present application.

[0030] The terms used in this specification are for the purpose of describing the embodiments of the present application, but are not intended to limit the present application. It should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "connected", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be specifically understood.

[0031] As Figures 1-6 As shown in combination, the embodiments of the present application provide a propulsion-power supply integrated buoy, which includes a buoy module 1, a rotation module 2 arranged below the buoy module 1, and a power generation module 3 arranged inside the buoy module 1. The drive shaft 31 of the power generation module 3 is fixedly connected to the rotation module 2. When the buoy is placed in a waterway for use, the rotation module 2 is underwater, and the flowing water drives the rotation module 2 to rotate, and then drives the drive shaft 31 of the power generation module 3 to rotate for power generation.

[0032] Specifically, the drive shaft 31 of the power generation module 3 is arranged in the vertical direction. The rotation module 2 includes a first connection portion 22 and a hydrofoil portion 23. The first connection portion 22 extends radially along the drive shaft 31. The upper end of the first connection portion 22 is fixedly connected to the drive shaft 31, and the lower end of the first connection portion 22 is connected to the hydrofoil portion 23;

[0033] Specifically, the hydrofoil portion 23 includes a plurality of hydrofoil blades. The structure of each hydrofoil blade is as Figure 3 and Figure 4 shown. The hydrofoil blade has an airfoil-shaped profile, that is, the curvature of its leading edge 231 is smaller, the curvature of its trailing edge 232 is larger, and the leading edge 231 and the trailing edge 232 are continuously transitioned to form two wing surfaces 234 connected between the leading edge 231 and the trailing edge 232; further, the hydrofoil blade further includes a blade rotating shaft 233. Each blade rotating shaft 233 is parallel to the drive shaft 31, and each hydrofoil blade is rotatably connected to the lower end of the first connection portion 22 along the circumferential direction of the drive shaft 31; in some preferred embodiments, the shapes of the hydrofoil blades are the same, that is, the profiles and heights of the hydrofoil blades are the same.

[0034] As Figure 1 and Figure 2 In some specific embodiments, the number of hydrofoil blades is set to six, and the six hydrofoil blades are circumferentially and equiangularly distributed at the lower end of the first connecting portion 22 along the driving shaft 31. That is, the included angle between any two adjacent hydrofoil blades among the six hydrofoil blades is 60°, which is beneficial to increasing the rotation stability of the rotating module 2 in the power supply mode and generating a greater resultant lift force in the propulsion mode, thereby improving the propulsion effect. In some other embodiments, the number of hydrofoil blades may also be three, four, five or more, and the distribution manner of each hydrofoil blade is similar to that of the six hydrofoil blades, which will not be elaborated herein.

[0035] In some preferred embodiments, the first connecting portion 22 has a centrosymmetric structure, and the driving shaft 31 is connected to the center of the first connecting portion 22 to avoid the influence caused by the eccentric rotation of the driving shaft 31. In some preferred embodiments, the first connecting portion 22 is a circular end plate, and the circular end plate can generate a blocking effect when the fluid passes through, increase the speed of the fluid below the circular end plate, and improve the work performance of the hydrofoil portion 23.

[0036] In some preferred embodiments, the rotating module 2 further includes electric motors 21 corresponding to the number of hydrofoil blades. The electric motors 21 are disposed on the first connecting portion 22, and the driving shafts of the electric motors 21 and the blade rotating shafts 233 of the hydrofoil blades corresponding to the electric motors 21 are coaxially arranged. The rotation of the driving shafts of the electric motors 21 drives the corresponding hydrofoil blades to rotate around their respective blade rotating shafts 233 to a specific angle. In some specific embodiments, the electric motors 21 are stepper motors.

[0037] In some preferred embodiments, the rotating module 2 further includes a fixing portion 24, which is located below the hydrofoil portion 23 and is rotatably connected to each hydrofoil blade for further enhancing the rotation stability of the hydrofoil blades.

[0038] In some specific embodiments, the buoy module 1 includes a buoy main body 13. Specifically, the buoy main body 13 has a hollow structure, and the power generation module is placed inside the buoy main body 13. In some specific embodiments, the buoy main body 13 is cylindrical.

[0039] In some preferred embodiments, the buoy module 1 further includes a buoy light 11, which is disposed on the upper part of the buoy main body 13 and is powered by the power generation module 3. It can be imagined that the buoy module 1 may further include other electrical functional components.

[0040] In some preferred embodiments, the buoy module 1 further includes a guardrail 12, which is disposed on the buoy main body 13 along the circumference of the buoy light 11 to protect the buoy light 11 from being collided.

[0041] In some preferred embodiments, the integrated buoy further includes a flow velocity and direction monitoring module for monitoring the real-time water flow velocity and direction.

[0042] In some preferred embodiments, the integrated buoy further includes an energy storage module that can store the electric energy generated by the power generation module 3, effectively meeting the power demand of the buoy and ensuring its normal operation.

[0043] In the power supply working mode, as Figure 5 shown, each motor 21 controls its corresponding hydrofoil blade to rotate around its blade rotating shaft 233 until the inclination angles α of all hydrofoil blades are the same. The inclination angle α refers to the angle between the straight line l connecting the center of the circle formed by the blade rotating shafts 233 of all hydrofoil blades on the same horizontal plane and the straight line l where the chord of the hydrofoil blade (i.e., the connection line between the leading edge 231 and the trailing edge 232) is located. 1 with the chord of the hydrofoil blade (i.e., the connection line between the leading edge 231 and the trailing edge 232). 2 At this time, the rotating module 2 forms a vertical axis water turbine. That is, under the action of the water flow, due to the structure of its airfoil profile, the hydrofoil blade generates a lifting force, causing the rotating module 2 to rotate relative to the drive shaft 31, and then driving the drive shaft 31 of the power generation module 3 to rotate for power generation, realizing the conversion of water energy into electric energy.

[0044] In the propulsion working mode, as Figure 6 shown, according to the oncoming flow direction and the target traveling direction of the buoy, each motor 21 controls its corresponding hydrofoil blade to rotate around its blade rotating shaft 233 until the attack angles β of all hydrofoil blades are the same. The attack angle β specifically refers to the angle between the oncoming flow direction and the chord of the hydrofoil blade. At this time, the rotating module 2 forms a straight-wing thruster. That is, under the action of the water flow, each hydrofoil blade can generate a lifting force F pointing to the target traveling direction of the buoy, thereby propelling the buoy to travel in the target direction.

[0045] The above has introduced the specific implementation manners of the present application in detail. For those skilled in the art of this technology, without departing from the principle of the present application, several improvements and modifications can still be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A propulsion-power supply integrated buoy, characterized in that: include: A buoy module (1), a rotation module (2) arranged below the buoy module (1), and a power generation module (3) arranged inside the buoy module (1); The driving shaft (31) of the power generation module (3) is arranged in a vertical direction and is fixedly connected to the rotating module (2); The rotating module (2) comprises a hydrofoil portion (23), the hydrofoil portion (23) comprises a plurality of hydrofoil blades, each of the hydrofoil blades can rotate around a respective blade rotation axis (233), and the blade rotation axis (233) of each hydrofoil blade is parallel to the drive shaft (31) and is distributed along the circumference of the drive shaft (31); The switching between the power supply mode and the propulsion mode is achieved by adjusting the angle of each hydrofoil blade. In the power supply mode, the angle of each hydrofoil blade is adjusted so that the flow of water drives the rotation module (2) to rotate and then drives the driving shaft (31) of the power generation module (3) to rotate to generate electricity; in the propulsion mode, the angle of each hydrofoil blade is adjusted so that lift is generated along the target travel direction under the action of the water flow, thereby propelling the buoy.

2. The propulsion-power supply integrated buoy according to claim 1, characterized in that: In the power supply mode, adjusting the angle of each hydrofoil blade means adjusting the inclination angle α of each hydrofoil blade to be the same, wherein the inclination angle α is the angle between the center of a circle formed by the blade rotation shaft (233) of each hydrofoil blade on the same horizontal plane and the straight line l1 where the center of the blade rotation shaft (233) is located and the straight line l2 where the chord of the hydrofoil blade is located.

3. The propulsion-power supply integrated buoy according to claim 1, characterized in that: In the propulsion mode, adjusting the angle of each hydrofoil blade refers to adjusting the angle of attack β of each hydrofoil blade to be the same, where the angle of attack β is the angle between the incoming flow direction and the chord of the hydrofoil blade.

4. The propulsion-power supply integrated buoy according to claim 1, characterized in that: The rotating module (2) further comprises a first connecting portion (22), the first connecting portion (22) extending radially along the driving shaft (31), the driving shaft (31) being connected to the upper end of the first connecting portion (22), and each hydrofoil blade being rotatably connected to the lower end of the first connecting portion (22) around its own blade rotating shaft (233) along the circumferential direction of the driving shaft (31).

5. The propulsion-power supply integrated buoy according to claim 4, characterized in that: The first connecting portion (22) is a circular cover plate, and the driving shaft (31) is fixedly connected to the center of the first connecting portion (22).

6. The propulsion-power supply integrated buoy according to claim 4, characterized in that: The rotating module (2) further comprises a fixing portion (24), which is located at the lower part of the hydrofoil portion (23) and is rotatably connected to each hydrofoil blade.

7. The propulsion-power supply integrated buoy according to claim 4, characterized in that: The hydrofoil blades are distributed at equal angles along the circumference of the drive shaft (31).

8. The propulsion-power supply integrated buoy according to claim 1, characterized in that: The hydrofoil blade has an airfoil-shaped line, including a leading edge (231), a trailing edge (232) and a blade rotation axis (233). The curvature of the leading edge (231) is smaller than that of the trailing edge (232). The leading edge (231) and the trailing edge (232) are continuously transitioned to form two airfoil surfaces (234) connected between the leading edge (231) and the trailing edge (232).

9. The propulsion-power supply integrated buoy according to claim 1, characterized in that: The rotation module (2) further comprises a plurality of electric motors (21) whose number is equal to the number of the hydrofoil blades. The electric motors (21) are located on the first connecting portion (22), and the driving shaft of each electric motor (21) is coaxially arranged with the blade rotating shaft (233) of the hydrofoil blade corresponding to the electric motor (21).

10. The propulsion-power supply integrated buoy according to claim 1, characterized in that: It also includes a flow velocity and direction monitoring module and an energy storage module, wherein the flow velocity and direction monitoring module is used to monitor the real-time water flow velocity and direction, and the energy storage module is used to store the electric energy generated by the power generation module (3).

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