Foldable rigid wing sail and unmanned sailboat

Abstract

The foldable rigid wing sail comprises a main shaft, a fixed wing plate, a movable wing plate, a hinge seat, a servo motor and a transmission device, the fixed wing plate is vertically arranged, the bottom of the fixed wing plate is fixedly connected with one side of the hinge seat through a connecting plate, and the upper end of the main shaft and the bottom of the hinge seat are of an integrated structure. The two movable wing plates are symmetrically arranged on the same side of the fixed wing plate, and the lower ends of the movable wing plates are rotationally connected with the hinge seat. The servo motor is located and fixed to the upper portions of the central axes of the wing plates, the transmission device comprises a crank sliding block mechanism and two transmission rods, one end of a crank is fixedly connected with the output end of the servo motor, the two transmission rods are symmetrically arranged on the two sides of the central axis of the fixed wing plate, and the two ends of a sliding block are hinged to the lower portions of the two movable wing plates through the transmission rods respectively. The utility model further discloses the unmanned sailing boat. The coping capacity of the unmanned sailing boat in different sea conditions is improved, the area of the sail is automatically adjusted according to the wind conditions, the operation risk is reduced, and the normal sailing speed can still be kept under the low-wind-speed condition.

Description

Technical Field

[0001] The utility model relates to the technical field of ship engineering, and in particular to a foldable rigid wing sail and an unmanned sailboat. Background Art

[0002] An unmanned sailboat is an unmanned surface platform powered by clean energy such as wind and solar power. Its structure primarily consists of a hull, sails, and keel. It is primarily used for monitoring marine environmental information. A sailboat's wing is a specially designed sail designed to enhance a sailboat's performance.

[0003] Traditional cloth sails are prone to wear and tear and require frequent maintenance and replacement, which increases operating costs and complexity. The tensioning and relaxing process of the sails may cause uneven force on the canvas, affecting its service life. Unlike traditional cloth sails, wingsails usually have a hard shell structure, similar in shape to an airplane wing. The shape and rigid structure of the wingsail enable it to utilize wind more efficiently, providing greater lift and thrust, thereby improving speed and maneuverability. The wingsail can optimize the use of wind by adjusting its angle of attack (angle into the wind), which is similar to the way an airplane's wings adjust flaps to maintain optimal performance in different wind conditions. Due to its rigid structure, the wingsail has better stability in the wind than traditional cloth sails, which helps reduce the swaying and tilting of the hull.

[0004] The sails of traditional sailboats require manual operation and adjustment, including raising and lowering the sails, adjusting the sail angle, and so on. This complex operation is impossible for unmanned sailboats. Unmanned sailboats using traditional wingsails are prone to generating excessive capsizing moments in high wind speeds, increasing the risk of capsizing. Traditional wingsails cannot automatically adjust the sail area according to wind conditions, increasing the operational risks in adverse sea conditions. In low wind speeds, traditional wingsails are less efficient and cannot fully utilize light breezes, resulting in insufficient speed. Therefore, existing technologies urgently need further improvement and enhancement. Utility Model Content

[0005] In response to the above-mentioned deficiencies in the existing technology, one purpose of the present invention is to propose a foldable rigid wingsail to solve the problem that the existing unmanned sailboats using traditional wingsails are prone to generate excessive overturning moments at high wind speeds, increasing the risk of capsizing. Traditional wingsails cannot automatically adjust the sail area according to wind conditions, increasing the operational risk in severe sea conditions. In low wind speed conditions, traditional wingsails are less efficient and cannot fully utilize breezes, resulting in insufficient speed.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is:

[0007] A foldable rigid wing sail comprises a main shaft, a fixed wing panel, a movable wing panel, a hinge seat, a servo motor and a transmission device. The fixed wing panel is a fan-shaped rigid flat plate structure and is arranged vertically. The hinge seat is located below the fixed wing panel, and the bottom of the fixed wing panel is fixedly connected to one side of the hinge seat through a connecting plate.

[0008] The main shaft is vertically arranged below the hinge seat, and the upper end of the main shaft and the bottom of the hinge seat are an integrated structure.

[0009] There are two movable wing plates, both of which are located on the same side of the fixed wing plate and are symmetrically arranged about the central axis of the fixed wing plate. The lower ends of the two movable wing plates are rotatably connected to the hinge seat.

[0010] The servo motor is located above the central axis of the fixed wing plate and is fixed on the fixed wing plate.

[0011] The transmission device is arranged on the other side of the fixed wing plate, which includes a crank slider mechanism and two transmission rods. One end of the crank of the crank slider mechanism is fixedly connected to the output end of the servo motor, and the two transmission rods are symmetrically arranged on both sides of the central axis of the fixed wing plate.

[0012] The upper ends of the two transmission rods are respectively hinged to the two ends of the slider of the crank slider mechanism, and the lower ends are respectively hinged to the lower part of the movable wing plate on the same side.

[0013] Furthermore, the articulated seat includes a base, a first ear plate and a second ear plate. The first ear plate and the second ear plate are arranged above the base with relative spacing, and the lower end is an integral structure with the top of the base, and a mounting groove is formed between the two ear plates.

[0014] The thickness of the first ear plate is greater than that of the second ear plate. The lower end of the connecting plate is fixedly connected to the first ear plate, and the upper end of the connecting plate is fixedly connected to the middle part of the lower end of the fixed wing plate.

[0015] Furthermore, the movable wing plate is a fan-shaped rigid flat plate, which is arranged relatively parallel to the fixed wing plate and close to the fixed wing plate.

[0016] The lower ends of the two movable wing plates are both extended into the installation groove and are rotatably connected to the hinge seat via a fixed shaft passing through the hinge seat.

[0017] Furthermore, the axis of the main shaft coincides with the central axis of the fixed wing plate, and the fixed shaft is located on the central axis of the fixed wing plate, with its axis being perpendicular to the central axis of the fixed wing plate.

[0018] Furthermore, the fixed wing plate is provided with a guide groove, which is arranged along the central axis of the fixed wing plate and is located directly below the servo motor.

[0019] The slider of the crank slider mechanism is a horizontally arranged rod body, and there are two guide shafts arranged in parallel in the middle of the slider, one above and one below. One end of each guide shaft is fixedly connected to the slider, and the other end passes through the guide groove and vertically slides with the fixed wing plate.

[0020] The guide shaft located above is movably connected to the other end of the crank through a connecting rod, and the crank drives the slider to move vertically along the central axis of the fixed wing plate through the connecting rod.

[0021] Furthermore, a rotating shaft is fixedly provided at the lower end of each transmission rod, one end of the rotating shaft is fixedly connected to the transmission rod, and the other end is passed through the outer side of the lower part of the movable wing and rotates with the movable wing.

[0022] The two rotating shafts are both located above the fixed shaft, respectively located on both sides of the connecting plate and symmetrically arranged about the central axis of the fixed wing plate.

[0023] Furthermore, the upper portion of one side of the fixed wing plate close to the movable wing plate has two arc-shaped dovetail grooves, and the two arc-shaped dovetail grooves are symmetrically arranged about the central axis of the fixed wing plate.

[0024] A guide block is provided in each arc-shaped dovetail groove, and the guide block is slidably matched with the fixed wing plate. The two guide blocks are respectively connected to the two movable wing plates and are respectively located on the side where the two movable wing plates are close to each other.

[0025] Another object of the present invention is to provide an unmanned sailboat.

[0026] An unmanned sailboat is equipped with the above-mentioned foldable rigid wing sail. The unmanned sailboat comprises a hull, a counterweight block and a driving device capable of driving the main shaft to rotate. The top of the hull is provided with an upper cover plate that seals the interior of the cabin.

[0027] The driving device is arranged inside the hull, and the lower end of the main shaft passes through the upper cover plate and extends into the hull and is fixedly connected to the execution end of the driving device.

[0028] A steering control mechanism is provided at the rear end of the hull, and a shipborne radar is provided above the front part of the hull. The shipborne radar is fixedly connected to the top of the hull through a steel frame.

[0029] Furthermore, the steering control mechanism includes a rudder blade, a rudder shaft and a steering gear. The steering gear is installed at the rear end of the hull through a waterproof cover. The rudder blade is a vertically arranged rectangular flat plate. The upper end of the rudder blade is fixedly connected to the output end of the steering gear through the vertically arranged rudder shaft. In the working state, the steering gear can drive the rudder blade to rotate through the rudder shaft.

[0030] Furthermore, the counterweight is in the shape of a spindle with a round front end and a pointed rear end. The counterweight is arranged longitudinally and horizontally below the hull, and the top is fixedly connected to the bottom of the hull through a keel.

[0031] By adopting the above-mentioned technical solution, the present invention achieves the following beneficial technical effects: the foldable wingsail increases the unmanned sailboat's ability to cope with different sea conditions, automatically adjusting the sail area and shape to adapt to varying wind speeds and sea conditions. In strong winds, the foldable wingsail can be partially or fully retracted, reducing the sail area and lowering the lateral force and capsizing moment on the sailboat, thereby improving stability and preventing capsizing. In weak winds, the wingsail can be fully deployed, increasing the sail area and improving speed and efficiency. By optimizing the shape and area of ​​the sail, the foldable wingsail can more effectively utilize wind energy and reduce the unmanned sailboat's energy consumption, which is crucial for long-distance navigation and energy conservation. The rigid wingsail is more durable than traditional cloth sails, is less susceptible to damage, and has lower maintenance costs, which is particularly important for sailboats that are unmanned for long periods of time. The foldable wingsail can be quickly retracted when the wind is too strong, reducing the wind load and the risk of capsizing. Its adaptive capabilities significantly enhance the safety of the unmanned sailboat in adverse sea conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The utility model is a structural schematic diagram of a foldable rigid wing sail.

[0033] Figure 2 This is a schematic diagram of a first implementation of a foldable rigid wingsail of the utility model.

[0034] Figure 3 yes Figure 1 The structural diagram of a part of the figure shows the transmission device.

[0035] Figure 4 yes Figure 1 The structural diagram of another part shows the combination of the fixed wing plate and the hinge seat.

[0036] Figure 5 This is a schematic diagram of a second implementation of a foldable rigid wingsail of the utility model.

[0037] Figure 6 The utility model is a schematic diagram of an unmanned sailboat.

[0038] Figure 7 It is a structural schematic diagram of a certain part of the utility model, showing the hull part. DETAILED DESCRIPTION

[0039] The utility model is described in detail below with reference to the accompanying drawings:

[0040] Example 1, combined Figures 1 to 4A foldable rigid wing sail includes a main shaft 1, a fixed wing panel 2, a movable wing panel 3, a hinge seat 4, a servo motor and a transmission device. The fixed wing panel 2 is a rigid flat plate structure in a fan ring shape and is arranged vertically. The hinge seat 4 is located below the fixed wing panel 2. The bottom of the fixed wing panel 2 is fixedly connected to one side of the hinge seat 4 through a connecting plate 45.

[0041] Specifically, the articulated seat 4 includes a base 41, a first ear plate 42 and a second ear plate 43. The first ear plate 42 and the second ear plate 43 are arranged above the base 41 with relative spacing. The thickness of the first ear plate 42 is greater than the thickness of the second ear plate 43. The first ear plate 42 supports and fixes the fixed wing plate 2 to ensure the connection stiffness between the fixed wing plate 2 and the first ear plate 42. The lower ends of the two ear plates are integrated with the top of the base 41, and a mounting groove 44 is formed between the two ear plates.

[0042] The main shaft 1 is vertically positioned below the articulated seat 4, with its upper end welded to the bottom of the articulated seat 4 to form an integral structure. The axis of the main shaft 1 coincides with the central axis of the fixed wing 2. Through the articulated seat 4, the main shaft 1 can drive the fixed wing 2 to rotate, adjusting the angle of the foldable rigid wingsail. The connecting plate 45 is an isosceles trapezoidal metal plate that is wider at the top and narrower at the bottom. It is vertically positioned between the fixed wing 2 and the articulated seat 4. Specifically, the upper end of the connecting plate 45 is welded to the middle of the lower end of the fixed wing 2, and its lower end is welded to the upper end of the first lug 42.

[0043] There are two movable wing panels 3 , both of which are located on the same side of the fixed wing panel 2 and are symmetrically arranged about the central axis of the fixed wing panel 2 . The lower ends of the two movable wing panels 3 are rotatably connected to the hinge seat 4 .

[0044] Specifically, the movable flaps 3 are fan-shaped, rigid flat plates, arranged parallel to and adjacent to the fixed flaps 2. The lower ends of the two movable flaps 3 extend into mounting slots 44 and are pivotally connected to the hinged base 4 via a fixed shaft 46 extending through the hinged base 4. The fixed shaft 46 is located on the central axis of the fixed flap 2, with its axis perpendicular to the central axis.

[0045] The servo motor is located above the central axis of the fixed wing 2 and is fixed to the fixed wing 2. Preferably, the servo motor is embedded in the fixed wing 2. The fixed wing 2 has a guide groove 21, which is arranged along the central axis of the fixed wing 2 and is located directly below the servo motor.

[0046] The transmission device is located on the other side of the fixed wing 2 and includes a slider-crank mechanism 5 and two transmission rods 6. One end of the crank 51 of the slider-crank mechanism 5 is fixedly connected to the output end of the servo motor. In operation, the output shaft of the servo motor drives the crank 51 to rotate around it. Specifically, the slider 52 of the slider-crank mechanism 5 is a horizontally arranged rod. Two parallel guide shafts 53 are arranged in the middle of the slider 52, one above and one below. One end of each guide shaft 53 is fixedly welded to the middle of the slider 52, and the other end extends into the guide slot 21 and vertically slides with the fixed wing 2.

[0047] The guide shaft 53 located above is movably connected to the other end of the crank 51 through a connecting rod 54. Specifically, the upper end of the connecting rod 54 is hinged to the other end of the crank 51, and its other end is hinged to the guide shaft 53 located above. When the output shaft of the servo motor drives the crank 51 to rotate, the crank 51 drives the slider 52 to move up and down along the central axis of the fixed wing 2 through the connecting rod 54.

[0048] The two transmission rods 6 are symmetrically arranged on both sides of the central axis of the fixed wing plate 2. The upper ends of the two transmission rods 6 are respectively hinged to the two ends of the slider 52 of the crank slider mechanism 5, and the lower ends are respectively hinged to the lower part of the movable wing plate 3 on the same side.

[0049] Specifically, a rotating shaft 61 is fixedly mounted at the lower end of each transmission rod 6. One end of the rotating shaft 61 is fixedly connected to the transmission rod 6, and the other end passes through the lower outer portion of the movable flap 3 and rotates with the movable flap 3. Both rotating shafts 61 are located above the fixed shaft 46, on either side of the connecting plate 45, and are symmetrically arranged about the central axis of the fixed flap 2.

[0050] During operation, the servo motor drives the crank 51 to rotate clockwise or counterclockwise about its output shaft. This, in turn, drives the slider 52, via the connecting rod 54, to move upward or downward along the central axis of the fixed wing 2. When the slider 52 moves upward, the transmission rod 6 drives the two movable wings 3 inward, reducing the effective area of ​​the foldable rigid wing sail. When the slider 52 moves downward, the transmission rod 6 drives the two movable wings 3 outward, increasing the effective area of ​​the foldable rigid wing sail. Combined with the unmanned vessel's sensors and automatic control system, the foldable wing sail can be adjusted through remote monitoring and control systems to ensure optimal sailing performance under various conditions.

[0051] Example 2, combined with Figure 1 、 Figure 3 and Figure 5A foldable rigid wing sail has an overall structure substantially identical to that of the foldable rigid wing sail of Example 1, with the difference being that the upper portion of the fixed wing panel 2, adjacent to the movable wing panel 3, has two arcuate dovetail grooves 22. The two arcuate dovetail grooves 22 are symmetrically arranged about the central axis of the fixed wing panel 2. Both arcuate dovetail grooves 22 are arcuate with the axis of the fixed shaft 46 as their center.

[0052] A guide block is provided in each arc-shaped dovetail groove 22. The shape of the guide block matches the cross-section of the arc-shaped dovetail groove 22. The guide block slides with the fixed wing plate 2. The two guide blocks are respectively located on the side where the two movable wing plates 3 are close to each other, and are respectively connected to the corresponding movable wing plates 3 for rotation through a pin shaft, thereby improving the overall stability of the two movable wing plates 3 in the process of expanding outward or retracting inward relative to the fixed wing plate 2.

[0053] Example 3, combined with Figure 6 and Figure 7 An unmanned sailboat is equipped with the above-mentioned foldable rigid wing sail. The unmanned sailboat includes a hull 7, a counterweight 72, and a drive device capable of driving the main shaft 1 to rotate. The top of the hull 7 is provided with an upper cover 71 that seals the interior of the cabin. The upper cover 71 seals the cabin of the hull 7 to prevent seawater from entering the cabin during navigation. The upper cover 71 is provided with a mounting hole for the main shaft 1 to pass through. The main shaft 1 and the upper cover 71 are in a rotationally sealed fit. The counterweight 72 is spindle-shaped with a round front end and a pointed rear end. The counterweight 72 is arranged horizontally and longitudinally below the hull 7. The top is fixedly connected to the bottom of the hull 7 through a keel 73. The counterweight 72 maintains the draft and stability of the unmanned sailboat during navigation.

[0054] The drive device is located within the hull 7. The lower end of the main shaft 1 extends through the upper cover plate 71 into the hull 7 and is fixedly connected to the actuator end of the drive device. The drive device uses a conventional drive device, enabling the main shaft 1 to rotate about its axis to adjust the angle of the foldable rigid wingsail. The specific structure of the drive device is not detailed here. A steering control mechanism is provided at the rear end of the hull 7. A shipboard radar 74 is installed above the front of the hull 7 and is fixedly connected to the top of the hull 7 via a steel frame 75.

[0055] Specifically, the steering control mechanism includes a rudder blade 81, a rudder shaft 82, and a steering gear 83. The steering gear 83 is mounted at the rear end of the hull 7 via a waterproof cover 84. The rudder blade 81 is a vertically arranged rectangular flat plate. The upper end of the rudder blade 81 is fixedly connected to the output end of the steering gear 83 via the vertically arranged rudder shaft 82. In operation, the steering gear 83 can drive the rudder blade 81 to rotate via the rudder shaft 82. During navigation, the steering gear 83 drives the rudder blade 81 to rotate via the rudder shaft 82 to adjust the sailing direction of the unmanned sailboat.

[0056] Parts not described in the present invention can be realized by adopting or drawing on existing technologies.

[0057] In addition, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0058] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0059] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A foldable rigid wingsail, characterized in that: It includes a main shaft, a fixed wing plate, a movable wing plate, a hinge seat, a servo motor and a transmission device. The fixed wing plate is a fan-shaped rigid flat plate structure and is arranged vertically. The hinge seat is located below the fixed wing plate. The bottom of the fixed wing plate is fixedly connected to one side of the hinge seat through a connecting plate. The main shaft is vertically arranged below the hinge seat, and its upper end is integrated with the bottom of the hinge seat; There are two movable wing panels, both of which are located on the same side of the fixed wing panel and are symmetrically arranged about the central axis of the fixed wing panel. The lower ends of the two movable wing panels are rotatably connected to the hinge seat. The servo motor is located above the central axis of the fixed wing plate and is fixed to the fixed wing plate; The transmission device is arranged on the other side of the fixed wing plate, which includes a crank slider mechanism and two transmission rods. One end of the crank of the crank slider mechanism is fixedly connected to the output end of the servo motor, and the two transmission rods are symmetrically arranged on both sides of the central axis of the fixed wing plate; The upper ends of the two transmission rods are respectively hinged to the two ends of the slider of the crank slider mechanism, and the lower ends are respectively hinged to the lower part of the movable wing plate on the same side.

2. A foldable rigid wingsail according to claim 1, characterized in that: The hinged seat includes a base, a first ear plate and a second ear plate, the first ear plate and the second ear plate are arranged above the base with a relative spacing, the lower end and the top of the base are integrated into a structure, and a mounting groove is formed between the two ear plates; The thickness of the first ear plate is greater than that of the second ear plate. The lower end of the connecting plate is fixedly connected to the first ear plate, and the upper end of the connecting plate is fixedly connected to the middle part of the lower end of the fixed wing plate.

3. A foldable rigid wingsail according to claim 2, characterized in that: The movable wing plate is a fan-shaped rigid flat plate, arranged relatively parallel to the fixed wing plate and close to the fixed wing plate; The lower ends of the two movable wing plates are both extended into the installation groove and are rotatably connected to the hinge seat via a fixed shaft passing through the hinge seat.

4. A foldable rigid wingsail according to claim 3, characterized in that: The axis of the main shaft coincides with the central axis of the fixed wing plate. The fixed shaft is located on the central axis of the fixed wing plate, and its axis is perpendicular to the central axis of the fixed wing plate.

5. The foldable rigid wingsail according to claim 1, characterized in that: The fixed wing plate is provided with a guide groove, which is arranged along the central axis of the fixed wing plate and is located directly below the servo motor; The slider of the crank slider mechanism is a horizontally arranged rod body, with two guide shafts arranged in parallel, one above and one below, in the middle of the slider. One end of each guide shaft is fixedly connected to the slider, and the other end is inserted into the guide groove and vertically slides with the fixed wing plate. The guide shaft located above is movably connected to the other end of the crank through a connecting rod, and the crank drives the slider to move vertically along the central axis of the fixed wing plate through the connecting rod.

6. The foldable rigid wingsail according to claim 3, characterized in that: A rotating shaft is fixedly provided at the lower end of each transmission rod, one end of the rotating shaft is fixedly connected to the transmission rod, and the other end is passed through the outer side of the lower part of the movable wing and rotates with the movable wing; The two rotating shafts are both located above the fixed shaft, respectively located on both sides of the connecting plate and symmetrically arranged about the central axis of the fixed wing plate.

7. The foldable rigid wingsail according to claim 3, characterized in that: The upper portion of the fixed wing plate near the movable wing plate has two arc-shaped dovetail grooves, and the two arc-shaped dovetail grooves are symmetrically arranged about the central axis of the fixed wing plate; A guide block is provided in each arc-shaped dovetail groove, and the guide block is slidably matched with the fixed wing plate. The two guide blocks are respectively connected to the two movable wing plates and are located on the side where the two movable wing plates are close to each other.

8. An unmanned sailboat, characterized in that: An unmanned sailboat equipped with a foldable rigid wing sail as claimed in any one of claims 1 to 7 comprises a hull, a counterweight, and a drive device capable of driving a main shaft to rotate, and a top cover is provided on the top of the hull to seal the interior thereof; The drive device is arranged inside the hull, and the lower end of the main shaft extends into the hull through the upper cover plate and is fixedly connected to the execution end of the drive device; a steering control mechanism is provided at the rear end of the hull, and a shipborne radar is provided above the front part of the hull, and the shipborne radar is fixedly connected to the top of the hull through a steel frame.

9. The unmanned sailboat according to claim 8, characterized in that: The steering control mechanism includes a rudder blade, a rudder shaft and a steering gear. The steering gear is installed at the rear end of the hull through a waterproof cover. The rudder blade is a vertically arranged rectangular flat plate. The upper end of the rudder blade is fixedly connected to the output end of the steering gear through the vertically arranged rudder shaft. In the working state, the steering gear can drive the rudder blade to rotate through the rudder shaft.

10. The unmanned sailboat according to claim 8, characterized in that: The counterweight block is in the shape of a spindle with a round front end and a pointed rear end. The counterweight block is arranged longitudinally and horizontally below the hull, and the top is fixedly connected to the bottom of the hull through a keel.

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