A wave-suppressing device and a boat

Abstract

This utility model belongs to the field of marine equipment technology and discloses a wave-suppressing device and a vessel. The wave-suppressing device includes a four-bar linkage, a flow-blocking plate, and a rotary drive component. The rotary drive component drives the flow-blocking plate to rotate through the four-bar linkage, so that the flow-blocking plate has a working position extending into the water. This utility model places the rotary drive component above the water surface, and its sealing surface is isolated from the seawater environment, fundamentally avoiding the possibility of marine organisms adhering to the sealing surface of the rotary drive component, significantly reducing maintenance frequency and environmental risks. In addition, the rotary drive component is far from the corrosive environment of seawater and does not need to withstand underwater pressure, reducing the probability of seal failure due to seawater erosion or mechanical impact, thus improving the working stability and lifespan of the drive system.

Description

Technical Field

[0001] This utility model relates to the field of marine equipment technology, and in particular to a wave-suppressing device and a boat. Background Technology

[0002] When a boat travels at high speed, it is prone to violent pitching and rolling due to the wind and waves. In severe cases, the bow may bounce violently or even lift up and capsize, which has an adverse effect on the comfort and safety of the boat.

[0003] To address these issues, wave-suppressing devices are often used in the high-speed boat industry to reduce the hull's pitching and rolling, thereby reducing bow bounce and allowing the boat to navigate in a relatively stable manner. Wave-suppressing devices primarily adjust attitude parameters such as pitch and roll by altering the water pressure distribution at the stern or bottom of the hull.

[0004] Existing wave-damping devices generally include a drive component and flow-blocking plates. The drive component moves the flow-blocking plates to change their angle in the water. However, in existing wave-damping devices, the drive component is partially submerged in water. After prolonged use, marine organisms can grow on the surface of the drive component, requiring frequent cleaning, which undoubtedly increases maintenance costs and workload.

[0005] Therefore, the above problems urgently need to be solved. Utility Model Content

[0006] The purpose of this invention is to provide a wave-damping device and vessel to prevent marine organisms from adhering to the sealing surface of the rotating drive components, thereby significantly reducing maintenance frequency and environmental risks.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A wave-suppressing device includes a four-bar linkage, a flow-blocking plate, and a rotary drive component. The rotary drive component drives the flow-blocking plate to rotate via the four-bar linkage, so that the flow-blocking plate has a working position that extends into the water.

[0009] The hinged four-bar linkage includes:

[0010] A frame is used to fix the wave-suppressing device to the stern of the hull, and the rotary drive is disposed on the upper side of the frame so that the rotary drive is positioned on the water surface;

[0011] The first link is hinged to the frame, and the rotary drive is used to drive the first link to rotate.

[0012] The third link is hinged to the frame, and the flow-blocking plate is disposed at the end of the third link away from the frame;

[0013] The second link is hinged at one end to the first link and at the other end to the third link, so that the first link can drive the third link to swing through the second link.

[0014] Preferably, when the third link swings down to its lowest point, the first link and the second link are collinear, so that the four-bar linkage forms a dead point.

[0015] Preferably, the wave-suppressing device further includes a control component and an angle sensor. The angle sensor and the rotary drive component are both electrically connected to the control component. The angle sensor is configured to detect the rotation angle of the first connecting rod and feed the detection result back to the control component. The control component controls the rotary drive component to operate according to the feedback signal from the angle sensor, so as to regulate the rotation angle of the flow-blocking plate.

[0016] Preferably, the flow-blocking plate is set at an angle to the third link, so that the flow-blocking plate extends downward on the side away from the third link.

[0017] Preferably, the wave-suppressing device further includes a fifth connecting rod, a connecting shaft, a driving shaft, and a driven shaft, wherein:

[0018] The fifth connecting rod and the first connecting rod are connected together by the connecting shaft to form a crank structure;

[0019] The second connecting rod is hinged to the connecting shaft;

[0020] The first connecting rod is connected to the rotary drive component via the drive shaft;

[0021] The fifth link is rotatably connected to the frame via the driven shaft.

[0022] A vessel, the vessel comprising a hull and the aforementioned wave-damping device, the wave-damping device being disposed at the stern of the hull.

[0023] Preferably, two wave-suppressing devices are provided, and the wave-suppressing devices are distributed on both sides of the hull's forward direction.

[0024] The beneficial effects of this utility model are:

[0025] This invention places the rotary drive component above the water surface, with its sealing surface removed from the seawater environment. This fundamentally prevents marine organisms from adhering to the sealing surface of the rotary drive component, significantly reducing maintenance frequency and environmental risks. Furthermore, the rotary drive component is far from the corrosive seawater environment and does not need to withstand underwater pressure, reducing the probability of seal failure due to seawater erosion or mechanical impact, thus improving the operational stability and lifespan of the drive system. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the wave-suppressing device provided by this utility model;

[0027] Figure 2 This is a schematic diagram of the hinged four-bar mechanism provided by this utility model, excluding the frame, the second link, and the third link;

[0028] Figure 3 This is a schematic diagram of the wave-suppressing device provided by this utility model when the flow-blocking plate is in its lowest position;

[0029] Figure 4 This is a schematic diagram of the wave-suppressing device provided by this utility model when the flow-blocking plate is in its highest position;

[0030] Figure 5 This is a schematic diagram of the wave-suppressing device provided by this utility model when the flow-blocking plate is in the middle position;

[0031] Figure 6 This is a structural schematic diagram of the boat provided by this utility model.

[0032] In the picture:

[0033] 10. Hull;

[0034] 1. Four-bar linkage; 11. Frame; 12. First link; 13. Second link; 14. Third link; 16. Fifth link; 17. Connecting shaft; 18. Driving shaft; 19. Driven shaft;

[0035] 2. Baffle plate; 3. Rotation drive component; 4. Angle sensor; 5. Control component. Detailed Implementation

[0036] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0037] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0038] In this application, the term "and / or" describes a relationship between related objects, indicating that three relationships can exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump can represent: the existence of only one centrifugal vortex magnetic pump, the simultaneous existence of one centrifugal vortex magnetic pump and a centrifugal vortex magnetic pump, or the existence of only one centrifugal vortex magnetic pump. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0039] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0040] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0041] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0042] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0043] Please see Figures 1 to 6 This embodiment provides a wave-suppressing device, which includes a four-bar linkage 1, a flow-blocking plate 2, and a rotary drive 3. The rotary drive 3 drives the flow-blocking plate 2 to rotate through the four-bar linkage 1, so that the flow-blocking plate 2 has a working position that extends into the water.

[0044] Specifically, the hinged four-bar linkage 1 includes a frame 11, a first link 12, a second link 13, and a third link 14. The frame 11 is used to fix the wave-damping device to the stern of the hull 10. A rotary drive 3 is disposed on the upper side of the frame 11 so that the rotary drive 3 is positioned on the water surface. The first link 12 is hinged to the frame 11, and the rotary drive 3 is used to drive the first link 12 to rotate. The third link 14 is hinged to the frame 11, and a flow-blocking plate 2 is disposed at the end of the third link 14 away from the frame 11. One end of the second link 13 is hinged to the first link 12, and the other end is hinged to the third link 14, so that the first link 12 can drive the third link 14 to swing through the second link 13.

[0045] In practical applications, by placing the rotary drive 3 on the upper side of the frame 11, that is, in the area above the water surface at the stern of the hull 10, the power of the rotary drive 3 is transmitted to the flow deflector 2 via the four-bar linkage 1, causing the flow deflector 2 to rotate. When the boat is sailing at high speed, the rotary drive 3 adjusts the water entry angle and depth of the flow deflector 2 through the four-bar linkage 1, changing the water pressure distribution at the stern of the hull 10, thereby adjusting the pitch and roll angles of the boat, suppressing violent pitching, rolling, and bow bobbing caused by wind and waves, and achieving stable navigation.

[0046] Understandably, the rotary drive component 3 is positioned above the water surface, with its sealing surface removed from the seawater environment. This fundamentally prevents marine organisms from adhering to the sealing surface of the rotary drive component 3, significantly reducing maintenance frequency and environmental risks. Furthermore, the rotary drive component 3 is far from the corrosive seawater environment and does not need to withstand underwater pressure, reducing the probability of seal failure due to seawater erosion or mechanical impact, thus improving the operational stability and lifespan of the drive system.

[0047] More importantly, the distance between the hinge point of the first link 12 and the rotation axis of the second link 13, which is hinged to the first link 12, forms the crank radius. This allows the circular motion of the first link 12 to be converted into controllable linear reciprocating motion via the second link 13. Compared to the control method of existing linear reciprocating actuators that rely on the limit of the stroke end, the mechanical structure of rotation adjustment makes it easier to achieve stepless speed change and precise control, avoiding mechanical wear and attitude control deviations caused by impact at the end of the stroke.

[0048] When the rotary drive 3 drives the first link 12 to rotate at a constant speed, the end of the second link 13 connected to the first link 12 moves along an arc trajectory. The part of the second link 13 perpendicular to the rotation axis forms a straight reciprocating trend, which in turn pulls or pushes the third link 14 to rotate around the frame 11 through the hinge point, thereby converting the continuous output of the rotary drive into the angular swing of the flow deflector plate 2, which is adapted to the dynamic needs of boat attitude adjustment.

[0049] Specifically, when the third link 14 swings down to its lowest point, the first link 12 and the second link 13 are collinear, making the four-bar linkage 1 a dead point. At this time, the torque of the driving force on the rotating shaft is zero, and the rotary drive 3 does not need to bear additional holding torque to keep the baffle plate 2 in the lowest position. This is particularly suitable for handling the fixed attitude adjustment requirements during stable high-speed navigation, reducing energy consumption and avoiding prolonged overload of the rotary drive 3. In addition, the impact force of the water flow on the baffle plate 2 is directly transmitted to the fixed support point of the frame 11 through the third link 14, forming a rigid force closed loop, avoiding shear stress on the rotary drive 3, and extending its service life.

[0050] In this embodiment, the rotary drive 3 is a servo motor. The rotation speed and direction can be adjusted in real time through the servo control system, achieving precise control of the rotation angle and speed of the flow-blocking plate 2. For example, when wind and waves change, the servo motor can quickly respond to control signals, dynamically adjust the attitude of the flow-blocking plate 2, and promptly change the water pressure distribution at the stern or bottom of the hull 10, more effectively suppressing pitching and rolling, and improving the stability and safety of the ship's navigation.

[0051] To improve the accuracy of adjustment, the wave-suppressing device also includes a control component 5 and an angle sensor 4. The angle sensor 4 and the rotary drive component 3 are both electrically connected to the control component 5. The angle sensor 4 is configured to detect the rotation angle of the first connecting rod 12 and feed the detection result back to the control component 5. The control component 5 controls the rotary drive component 3 to work according to the feedback signal of the angle sensor 4, so as to regulate the rotation angle of the flow-blocking plate 2.

[0052] With this setup, the angle sensor 4 continuously monitors the actual rotation angle of the first link 12 and transmits the data to the control unit 5 in real time. The control unit 5 uses a preset algorithm (such as PID control) to compare the deviation between the target angle and the actual angle, dynamically adjusting the rotational speed of the rotary drive 3 to eliminate overshoot or lag caused by mechanical inertia. It should be noted that the specific models of the control unit 5 and the angle sensor 4 can be selected according to the actual application scenario; this embodiment does not impose specific requirements or limitations on this. In addition, the working principles of the control unit 5 and the angle sensor 4 are existing technologies and will not be described in detail.

[0053] In this embodiment, the flow deflector 2 and the third link 14 are arranged at an angle, so that the side of the flow deflector 2 away from the third link 14 extends downward, that is, the flow deflector 2 extends downward towards the hull 10. With this arrangement, the angle between the third link 14 and the flow deflector 2 allows the tilt angle of the flow deflector 2 to guide the water flow at the stern of the hull 10 to generate an upward lift component or a backward drag component. Compared with the traditional planar flow deflector 2, this angled structure can more accurately control the angle of attack when the water flow impacts the flow deflector 2. During high-speed navigation, by changing the water entry depth and water flow contact area, the stern water pressure distribution can be dynamically adjusted, effectively suppressing pitch (e.g., reducing bow lift) or roll (e.g., balancing the heel of the hull 10).

[0054] Specifically, when the water flow impacts the downward-extending surface of the baffle plate 2, it generates a reaction force that moves backward and upward. The vertical component of this force can offset part of the bow lift moment, directly suppressing the pitching amplitude, especially reducing violent bow bouncing when encountering headwinds. In addition, the obstruction of the water flow below the baffle plate 2 creates a local high-pressure zone, while the increased speed of the water flow above it creates a low-pressure zone. The resulting pressure difference generates a pitching moment regulating force along the longitudinal axis of the hull 10, which can dynamically balance the pitching moment caused by wind and waves (such as reducing the bow lift angle or shortening the lift time), allowing the vessel to sail in a more stable posture.

[0055] Specifically, the wave-suppressing device also includes a fifth connecting rod 16, a connecting shaft 17, a drive shaft 18, and a driven shaft 19. The fifth connecting rod 16 and the first connecting rod 12 are connected as one unit via the connecting shaft 17 to form a crank structure. The second connecting rod 13 is hinged to the connecting shaft 17. The first connecting rod 12 is driven by the rotary drive component 3 via the drive shaft 18. The fifth connecting rod 16 is rotatably connected to the frame 11 via the driven shaft 19.

[0056] Understandably, the fifth link 16 and the first link 12 form a rigid whole through the connecting shaft 17, making the driven shaft 19, the driving shaft 18, and the connecting shaft 17 form a stable triangular structure. This layout effectively constrains the motion trajectory of the second link 13, preventing it from shifting due to lateral forces during reciprocating motion.

[0057] More importantly, the angle sensor 4 can be placed on the driven shaft 19 instead of the driving shaft 18 (inside the servo motor), achieving physical separation between the sensor and the moving parts. The driven shaft 19 serves as the fixed rotation fulcrum of the crank structure, and its rotation angle is completely synchronized with the first connecting rod 12, but is not disturbed by the reciprocating motion of the second connecting rod 13.

[0058] This embodiment also provides a boat, which includes a hull 10 and the aforementioned wave-damping device, the wave-damping device being disposed at the stern of the hull 10. It is understood that boats including the aforementioned wave-damping device significantly reduce maintenance frequency and environmental risks, while improving operational stability and lifespan.

[0059] Specifically, two wave-damping devices are provided, distributed on both sides of the hull 10 in the forward direction. It should be noted that the specific placement of the wave-damping devices on both sides can be determined according to the shape of the stern bottom, ensuring that the bottom of the wave-damping devices is flush with the stern bottom so that they can effectively block water flow from the hull bottom when the flow-blocking plates 2 are extended. Figure 6 As shown, the bottom of the stern is V-shaped, so the devices on both sides are distributed at an angle. In different ship types, the bottom of the stern may also be horizontal or other irregular structures, and the layout of the wave-suppressing devices will be adjusted accordingly. With this setting, by controlling the extension stroke of the baffle plates 2 of the wave-suppressing devices on the left and right sides, different pressure distributions are formed on both sides of the bottom of the ship, resulting in greater lift on one side and less lift on the other side. The resulting difference can be used to suppress the roll or pitch of the hull 10.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A wave-suppressing device, characterized in that, The wave-suppressing device includes a four-bar linkage (1), a flow-blocking plate (2), and a rotary drive (3). The rotary drive (3) drives the flow-blocking plate (2) to rotate through the four-bar linkage (1) so that the flow-blocking plate (2) has a working position that extends into the water. The hinged four-bar linkage (1) includes: A frame (11) is used to fix the wave-suppressing device to the stern of the hull (10), and the rotating drive (3) is disposed on the upper side of the frame (11) so that the rotating drive (3) is located on the water surface; The first link (12) is hinged to the frame (11), and the rotation drive (3) is used to drive the first link (12) to rotate. The third link (14) is hinged to the frame (11), and the flow-blocking plate (2) is disposed at the end of the third link (14) away from the frame (11); The second link (13) is hinged at one end to the first link (12) and at the other end to the third link (14), so that the first link (12) can drive the third link (14) to swing through the second link (13).

2. The wave suppression device according to claim 1, characterized in that, When the third link (14) swings down to the lowest point, the first link (12) and the second link (13) are collinear, so that the four-bar linkage (1) forms a dead point.

3. The wave suppression device according to claim 1, characterized in that, The wave-suppressing device also includes a control unit (5) and an angle sensor (4). The angle sensor (4) and the rotation drive (3) are both electrically connected to the control unit (5). The angle sensor (4) is configured to detect the rotation angle of the first connecting rod (12) and feed the detection result back to the control unit (5). The control unit (5) controls the rotation drive (3) to work according to the feedback signal of the angle sensor (4) in order to regulate the rotation angle of the flow-blocking plate (2).

4. A wave suppression device according to claim 1, characterized in that, The flow-blocking plate (2) is set at an angle to the third link (14) so ​​that the flow-blocking plate (2) extends downward on the side away from the third link (14).

5. A wave suppression device according to claim 1, characterized in that, The wave-suppressing device also includes a fifth connecting rod (16), a connecting shaft (17), a driving shaft (18), and a driven shaft (19), wherein: The fifth link (16) and the first link (12) are connected together by the connecting shaft (17) to form a crank structure; The second connecting rod (13) is hinged to the connecting shaft (17); The first connecting rod (12) is connected to the rotary drive (3) via the drive shaft (18); The fifth link (16) is rotatably connected to the frame (11) via the driven shaft (19).

6. A type of boat, characterized in that, The vessel includes a hull (10) and a wave-suppressing device as described in any one of claims 1-5, the wave-suppressing device being disposed at the stern of the hull (10).

7. A boat according to claim 6, characterized in that, Two wave-suppressing devices are provided, and the wave-suppressing devices are distributed on both sides of the forward direction of the hull (10).

Images