Sail mechanism and navigation equipment

Abstract

The utility model provides a sail mechanism and navigation equipment. The sail mechanism comprises a sail shaft, a sail connected with the sail shaft, a front wing shaft connected with the sail, a front wing connected with the front wing shaft and a front wing driving piece. The sail can rotate around the sail shaft, the front wing shaft is located on the front side of the sail, the front wing can rotate around the front wing shaft, and the front wing driving piece is used for driving the front wing shaft to rotate around the front wing shaft to a target angle, so that the attack angle of the sail is increased. By the adoption of the technical scheme, the sail mechanism improves the attack angle of the sail by rotating the fixed deflection angle given by the front wing, and the navigational speed of navigation equipment can be improved; the front wing is deflected through the front wing driving piece, a servo machine on a sail shaft is omitted, and the loading capacity of navigation equipment is improved; the sail with the front wings can form vortex airflow on the side face of the sail, the vortex airflow flows close to the leeside of the sail, the separation point of the airflow and the sail face is delayed, and the forward thrust of the sail is improved while resistance is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of navigation equipment, and more specifically, to a sail mechanism and navigation equipment. Background Art

[0002] In the field of sailing, the aerodynamic efficiency of rigid wing-shaped sails is significantly higher than that of thin-film flexible sails. However, the pursuit of aerodynamic efficiency is endless. Rigid wing-shaped sailboats use servo motors to rotate the sail shaft to adjust the angle between the sail and the wind, that is, to adjust the angle of attack of the sail. When the angle of the wind changes, the angle of attack of the sail will become smaller, affecting the aerodynamic efficiency of the sail and reducing the sailing speed of the sailboat. Utility Model Content

[0003] The utility model aims to provide a sail mechanism and a sailing device to solve the technical problem in the prior art that the aerodynamic efficiency of the sail decreases due to a change in wind direction, resulting in a reduction in the sailing speed of the sailboat.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] In a first aspect, a sail mechanism is provided, comprising:

[0006] A sail shaft, a sail connected to the sail shaft, a forewing shaft connected to the sail, a forewing connected to the forewing shaft, and a forewing driving component; the sail can rotate around the sail shaft, the forewing shaft is located at the front side of the sail, the forewing can rotate around the forewing shaft, and the forewing driving component is used to drive the forewing shaft to rotate around the forewing shaft to a target angle, so that the angle of attack of the sail becomes larger.

[0007] By adopting the above technical solution, the sail mechanism of this embodiment has the following advantages:

[0008] 1. By rotating the fixed deflection angle given by the front wing, the angle of attack of the sail is increased, and the power of the sail is increased. Under the same wind speed conditions, it is beneficial to increase the speed of the sailing equipment;

[0009] 2. The forewing is deflected by a forewing drive, eliminating the servo on the sail shaft, streamlining the mass of the sail mechanism and improving the loading capacity of sailing equipment;

[0010] 3. A sail with a front wing can form a vortex airflow on the side of the sail. The vortex airflow flows closely along the leeward side of the sail, delaying the separation point between the airflow and the sail surface, thereby reducing resistance and increasing the forward thrust of the sail.

[0011] In one embodiment, the front wing axis forms a preset angle with the sail axis, and the preset angle ranges from 0° to 90°.

[0012] By adopting the above technical solution, it is achieved that the front wing drives the sail to rotate around the sail axis.

[0013] In one embodiment, the sail mechanism also includes a forewing connector connected to the sail, the length direction of the forewing connector is perpendicular to the sail axis, and the forewing axis is provided at one end of the forewing connector away from the sail, so that the forewing is spaced apart from the sail.

[0014] By adopting the above technical solution, the moment arm of the front wing is increased, making it easier for the sail to rotate, which is beneficial to increasing the angle of attack of the sail and improving the power of the sail.

[0015] In one embodiment, the forewing axis extends from the forewing connecting member on both sides in a direction parallel to the sail axis, and a forewing is respectively provided at both ends of the forewing axis.

[0016] By adopting the above technical solution, the balance of the force applied by the front wing is improved and the possibility of damage to the front wing connecting part is reduced.

[0017] In one embodiment, the sail and the front wing are wing-shaped.

[0018] By adopting the above technical solution, the power that the sail can provide to the sailing equipment is increased.

[0019] In one embodiment, the sail mechanism further comprises a sensor for acquiring incoming wind information, and the front wing driving element is electrically connected to the sensor.

[0020] By adopting the above technical solution, the sail control mechanism is simplified and the adaptive performance of the sail is improved.

[0021] In one embodiment, the sail mechanism also includes a tail shaft connected to the sail, a tail connected to the tail shaft, and a tail drive. The tail shaft is arranged on the rear side of the sail, and the tail drive can drive the tail to rotate around the tail shaft to a target angle, thereby increasing the angle of attack of the sail.

[0022] By adopting the above technical solution, a tail wing is installed on the sail, and the target angle of the tail wing is adjusted by the tail wing drive; when the wind comes from the right side of the sailing device, the tail wing drive controls the tail wing to rotate clockwise by a certain angle. At this time, the lift generated by the tail wing will deflect the sail and form an angle with the wind direction X. At this time, the lift generated by the sail can push the sailing device to sail along the target heading Y. The opposite is true for the wind coming from the left side. When the wind direction X changes within a certain range, the deflection angle of the tail wing is maintained, and the sail can be adaptively adjusted to the optimal angle to provide sailing power for the sailing device.

[0023] In one embodiment, the sail mechanism further comprises a tail connector connected to the sail, the length direction of the tail connector being perpendicular to the sail axis, and the tail axis is provided at one end of the tail connector away from the sail, so that the tail is spaced apart from the sail.

[0024] By adopting the above technical solution, the force arm of the tail wing is increased, making it easier for the sail to rotate, which is beneficial for rotating the sail to a suitable angle of attack and improving the power of the sail.

[0025] In one embodiment, the sail mechanism further comprises a measuring device, and the measuring device is arranged on at least one of the sail shaft, the sail, the canard shaft, the canard and the tail.

[0026] By adopting the above technical solution, the functionality of the sail mechanism is improved.

[0027] In a second aspect, a navigation device is provided, comprising a navigation device body and the above-mentioned sail mechanism, wherein the sail mechanism is arranged on the navigation device body.

[0028] By adopting the above technical solution, on the basis of having the advantages of the sail mechanism of the above embodiment, the navigation equipment of this embodiment also has the advantages of energy saving and speed increase. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a three-dimensional structural diagram of the sail mechanism provided by the embodiment of the utility model.

[0031] Figure 2 This is a top view of the sail mechanism provided by the embodiment of the utility model. Figure 1 .

[0032] Figure 3 This is a top view of the sail mechanism provided by the embodiment of the utility model. Figure 2 .

[0033] Figure 4 yes Figure 1 An enlarged view of point "A".

[0034] Figure 5 This is a top view of the sail mechanism provided by the embodiment of the utility model. Figure 3 .

[0035] Figure 6This is a top view of the sail mechanism provided by the embodiment of the utility model. Figure 4 .

[0036] Figure 7 This is a top view of the sail mechanism provided by the embodiment of the utility model. Figure 5 .

[0037] Figure 8 yes Figure 1 An enlarged view of point "B".

[0038] The reference numerals in the figures are:

[0039] 1. Sail shaft; 2. Sail; 3. Front wing shaft; 4. Front wing; 5. Front wing drive; 6. Front wing connector; 7. Tail wing shaft; 8. Tail wing; 9. Tail wing drive; 10. Tail wing connector;

[0040] 91. Tail wing motor; 92. Transmission arm; 52. Front wing transmission arm; 51. Front wing motor. DETAILED DESCRIPTION

[0041] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly located on the other element or indirectly located on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0043] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" 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 do not indicate that a device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating relative importance or indicating the number of technical features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The following is a more detailed description of the specific implementation of the present utility model in conjunction with specific embodiments:

[0045] like Figure 1As shown, a sail mechanism provided by an embodiment of the utility model is applied to navigation equipment. In this embodiment, the navigation equipment includes but is not limited to manned ships and unmanned ships; the sail mechanism is arranged on the navigation equipment, and the angle of attack of the sail mechanism is adjusted to improve the power of the navigation equipment, so as to achieve energy reduction and speed increase of the navigation equipment; the sail mechanism provided by this embodiment can improve its ability to adapt to wind direction, so that the angle of the sail mechanism relative to the wind direction is adjustable, thereby improving the speed of the navigation equipment; the following is an explanation through specific implementation methods:

[0046] The sail mechanism of this embodiment includes:

[0047] A sail shaft 1, a sail 2 connected to the sail shaft 1, a forewing shaft 3 connected to the sail 2, a forewing 4 connected to the forewing shaft 3 and a forewing driving component 5; the sail 2 can rotate around the sail shaft 1, the forewing shaft 3 is located at the front side of the sail 2, the forewing 4 can rotate around the forewing shaft 3, and the forewing driving component 5 is used to drive the forewing shaft 3 to rotate around the forewing shaft 3 to a target angle, so that the angle of attack of the sail 2 becomes larger.

[0048] Here, it can be understood that the sail shaft 1 refers to a shaft body used to carry and rotate the sail 2; the sail shaft 1 is used to be arranged on the main body of the sailing equipment, such as the hull of an unmanned ship, and the sail shaft 1 is generally erected on the hull, that is, the axis of the sail shaft 1 is perpendicular to the surface of the hull, so that when the sail 2 rotates around the sail shaft 1, the power provided by the sail 2 is parallel to the horizontal plane, thereby reducing the loss of the power provided by the sail 2, which is conducive to increasing the speed of the sailing equipment;

[0049] Sail 2 refers to a sail-shaped component; Sail 2 can provide power for the navigation device to move forward; in the present embodiment, sail 2 can be an airfoil sail, the cross section of the airfoil sail is similar to the cross section of the wing of an airplane, and common airfoil sails are rectangular sails and triangular sails; the propulsion principle of the airfoil sail navigation device is similar to that of an airplane wing, when the airfoil sail encounters a wind direction that is at a certain angle to its chord, which can be called the angle of attack, the flow velocity on the back of the wing is high, and the flow velocity and pressure on the other side are low. According to Bernoulli's principle, when the airflow bypasses the airfoil sail, the fluid pressure is low where the flow velocity is high, and the pressure is high where the flow velocity is low. Therefore, the upper and lower surfaces of the airfoil sail produce a pressure difference due to the difference in flow velocity, thereby generating power for the navigation device to move forward;

[0050] The forewing shaft 3 refers to a shaft body used to carry and rotate the forewing 4; the forewing shaft 3 is used to be arranged on the front side of the sail 2, where the front side refers to the side of the sail that is arranged to face the wind, and the forewing shaft 3 is arranged at a distance from the sail shaft 1, so that the power generated by the forewing 4 can drive the entire sail 2 to rotate around the sail shaft 1 through the forewing shaft 3;

[0051] The front wing 4 refers to an airfoil component; the front wing 4 can provide the power for the sail 2 to rotate around the sail axis 1; in the present embodiment, the front wing 4 can be an airfoil, the same as the sail 2, when the front wing 4 encounters a wind direction that forms a certain angle with its chord, which can be called the angle of attack, the side of the tail 8 facing away from the wind direction has a large flow velocity and a small pressure, while the side facing the wind direction has a small flow velocity and a high pressure. According to Bernoulli's principle, when the airflow bypasses the front wing 4, the fluid pressure is smaller where the flow velocity is large, and the pressure is larger where the flow velocity is small. Therefore, the upper and lower surfaces of the front wing 4 generate a pressure difference due to the difference in flow velocity, thereby generating the power for the sail 2 to rotate around the sail axis 1;

[0052] The forewing driving component 5 refers to a driving component for driving the forewing 4 to rotate around the forewing axis 3; the forewing driving component 5 includes but is not limited to a servo, and the forewing 4 is driven to rotate by the forewing driving component 5 so that the forewing 4 can present a certain angle of attack with the wind direction, and the force generated by the forewing 4 drives the sail 2 to rotate to a suitable angle, thereby increasing the angle of attack of the sail 2 and increasing the power that the sail 2 can provide.

[0053] The working principle of the sail mechanism provided in this embodiment is as follows:

[0054] The sail mechanism is erected on the main body of the navigation equipment; Figure 2 As shown in FIG. 1 , when the sail mechanism encounters a wind direction X from the right side of the target heading Y of the navigation equipment, at this time, as shown in FIG. Figure 3 As shown, the front wing 4 is rotated counterclockwise, so that the tail of the front wing 4 is deflected toward the right side of itself, and its angle of attack is enlarged. The deflection force generated by the front wing 4 makes the sail 2 rotate counterclockwise around the sail shaft 1. At the same time, the vortex generated by the front wing 4 can greatly increase the angle of attack of the sail 2, so that the sail 2 generates greater power to drive the sailing equipment to sail.

[0055] On the contrary, when the sail mechanism encounters a wind direction coming from the left side of the destination heading Y of the sailing equipment, the front wing 4 is rotated clockwise so that the tail of the front wing 4 is deflected toward its own left side, thereby increasing its own angle of attack. The deflection force generated by the front wing 4 causes the sail 2 to rotate clockwise around the sail axis 1. At the same time, the vortex generated by the front wing 4 can greatly increase the angle of attack of the sail 2, thereby causing the sail 2 to generate greater power and propel the sailing equipment to sail.

[0056] It needs to be further explained that the front wing driving component 5 can obtain the wind direction X through a sensor, and then adjust the rotation angle of the front wing 4 around the front wing axis 3 according to the wind direction X; or, the front wing driving component 5 is input with a control instruction by an operator, and the operator inputs a control instruction based on the wind direction X judged by himself, so that the front wing driving component 5 drives the front wing 4 to rotate to a target angle.

[0057] By adopting the above technical solution, the sail mechanism of this embodiment has the following advantages:

[0058] 1. By rotating the fixed deflection angle given by the front wing 4, the angle of attack of the sail 2 is increased, and the power of the sail 2 is increased, which is beneficial to increase the speed of the navigation equipment under the same wind speed conditions;

[0059] 2. The front wing 4 is deflected by a front wing drive 5, eliminating the servo on the sail shaft 1, streamlining the mass of the sail mechanism and improving the loading capacity of the sailing equipment;

[0060] 3. The sail 2 with the front wing 4 can form a vortex airflow on the side of the sail 2. The vortex airflow flows closely along the leeward side of the sail 2, delaying the separation point between the airflow and the surface of the sail 2, thereby reducing the resistance and increasing the forward thrust of the sail 2.

[0061] In one embodiment, the front wing axis 3 forms a preset angle with the sail axis, and the preset angle ranges from 0° to 90°.

[0062] Here, it can be understood that the forewing axis 3 is coplanar with the sail axis 1, and the two are at a preset angle; preferably, the forewing axis 3 is arranged parallel to the sail axis 1, so that the rotation trajectory of the forewing 4 is parallel to the horizontal plane, the power generated by the forewing 4 is parallel to the horizontal plane, and the power of the forewing 4 is perpendicular to the sail axis 1, so that the sail 2 can be driven to rotate around the sail axis 1 to the maximum extent.

[0063] By adopting the above technical solution, it is achieved that the front wing 4 drives the sail 2 to rotate around the sail axis 1.

[0064] In one embodiment, the sail mechanism also includes a front wing connector 6 connected to the sail 2, the length direction of the front wing connector 6 is perpendicular to the sail shaft 1, and a front wing shaft 3 is provided at the end of the front wing connector 6 away from the sail 2, so that the front wing 4 is spaced apart from the sail 2.

[0065] Here, it can be understood that the front wing connector 6 refers to a component used to connect the sail 2 and the front wing 4; one end of the front wing connector 6 is connected to the sail 2, and the other end of the front wing connector 6 is connected to the front wing 4, and the length direction of the front wing connector 6 is perpendicular to the sail shaft 1. In this way, the force arm of the power provided by the front wing 4 is increased, the torque of the sail shaft 1 is increased, and the sail 2 is more easily subjected to force and rotated.

[0066] By adopting the above technical solution, the moment arm of the front wing 4 is increased, so that the sail 2 is easier to rotate, which is beneficial to increase the angle of attack of the sail 2 and improve the power of the sail 2.

[0067] In one embodiment, the forewing axis 3 extends from the forewing connecting member 6 to both sides in a direction parallel to the sail axis 1 , and a forewing 4 is respectively provided at both ends of the forewing axis 3 .

[0068] Here, it can be understood that, in the present embodiment, the front wing axis 3 extends from the front wing connecting member 6 toward the upper and lower sides, and a front wing 4 is respectively provided at both ends of the front wing axis 3, that is, the two front wings 4 are respectively provided at the two ends of the front wing axis 3, which improves the balance of the front wings 4, so that the power applied to the front wing connecting member 6 by the two front wings 4 is the same, the front wing connecting member 6 is evenly stressed, and the possibility of damage to itself is reduced.

[0069] By adopting the above technical solution, the balance of the force applied by the front wing 4 is improved, and the possibility of damage to the front wing connecting member 6 is reduced.

[0070] In one embodiment, the sail 2 and the front wing 4 are wing-shaped.

[0071] Here, it can be understood that the shape of the sail 2 is wing-shaped, that is, the sail 2 is a wing-shaped sail; in order to improve the energy-saving efficiency of the sail 2, better aerodynamic characteristics are mainly obtained by changing the cross-sectional shape of the sail 2. The wing-shaped sail of this embodiment is a rigid wing-shaped sail.

[0072] By adopting the above technical solution, the power that the sail 2 can provide to the sailing equipment is increased.

[0073] In one embodiment, the sail mechanism further includes a sensor for acquiring wind information, and the front wing driving member 5 is electrically connected to the sensor.

[0074] Here, it can be understood that, in this embodiment, the sail 2 is controlled by the front wing 4, and the angle of the sail 2 is not directly controlled; the sensor only needs to identify whether the wind direction X is the left side or the right side of the sailing device, and correspondingly let the front wing 4 deflect to the right or left by an angle, and the front wing 4 will generate a deflection torque, forcing the sail 2 to deflect, thereby increasing the angle of attack of the sail 2 and increasing the power to propel the sailing device to sail.

[0075] By adopting the above technical solution, the sail control mechanism is simplified and the adaptive performance of the sail 2 is improved.

[0076] like Figure 4 As shown, in one embodiment, the cantilever driving component 5 includes a cantilever motor 51 and a cantilever transmission arm 52, the cantilever motor 51 is fixedly connected to the sail 2, the cantilever motor 51 is provided with a power output shaft, the cantilever transmission arm 52 is rotatably connected to the cantilever 4, and the power output shaft is used to drive the cantilever transmission arm 52 to drive the cantilever 4 to rotate around the cantilever axis 3.

[0077] Here, it can be understood that the front wing driving member 5 is a steering gear.

[0078] By adopting the above technical solution, the front wing driving component 5 has a simple structure and is easy to manufacture, which can reduce the manufacturing cost of the sail mechanism.

[0079] Please refer again Figure 1In one embodiment, the sail mechanism further includes a tail shaft 7 connected to the sail 2, a tail 8 connected to the tail shaft 7, and a tail drive 9. The tail shaft 7 is arranged on the rear side of the sail 2. Here, the rear side refers to here, and the front side refers to the side where the sail is set to be leeward. The tail drive 9 can drive the tail 8 to rotate around the tail shaft 7 to a target angle, so that the angle of attack of the sail 2 becomes larger.

[0080] Here, it can be understood that the tail shaft 7 refers to a shaft body used to carry and rotate the tail 8; the tail shaft 7 is used to be arranged on the sail 2, and the tail shaft 7 is arranged at a distance from the sail shaft 1, so that the power generated by the tail 8 can drive the entire sail 2 to rotate around the sail shaft 1 through the tail shaft 7;

[0081] The tail wing 8 refers to an airfoil component; the tail wing 8 can provide the power for the sail 2 to rotate around the sail axis 1; in the present embodiment, the tail wing 8 can be an airfoil, the same as the sail 2. When the tail wing 8 encounters a wind direction that forms a certain angle with its chord, which can be called the angle of attack, the flow velocity on the back of the tail wing 8 is large, and the flow velocity and pressure on the other side are small. According to Bernoulli's principle, when the airflow bypasses the tail wing 8, the fluid pressure is small where the flow velocity is large, and the pressure is large where the flow velocity is small. Therefore, the upper and lower surfaces of the tail wing 8 produce a pressure difference due to the difference in flow velocity, thereby generating the power for the sail 2 to rotate around the sail axis 1;

[0082] The tail driving component 9 refers to a driving component for driving the tail 8 to rotate around the tail shaft 7; the tail driving component 9 includes but is not limited to a servo, and the tail 8 is driven to rotate by the tail driving component 9, so that the tail 8 can present a certain angle of attack with the wind direction, driving the sail 2 to rotate to a suitable angle, thereby increasing the power that the sail 2 can provide.

[0083] The working principle of the sail mechanism provided in this embodiment is as follows:

[0084] The sail mechanism is erected on the main body of the navigation equipment; Figure 5 As shown, when the sail mechanism encounters a wind direction from the right side of the target course Y of the sailing equipment, at this time, the sail 2 and the tail wing 8 are perpendicular to the wind direction X, and the wind will generate a deflection force on the entire sail 2, such as Figure 6 As shown, the sail 2 and the tail wing 8 are driven to rotate clockwise around the sail axis 1 to a position parallel to the wind direction X. At the same time, the wind direction X causes the navigation equipment to move in a direction parallel to the wind direction X, that is, the actual heading Z is perpendicular to the target heading Y. At this time, Figure 7 As shown, the tail wing 8 can be deflected clockwise so that the tail wing 8 forms a certain angle of attack with the wind direction X, and the tail wing 8 generates a counterclockwise rotation force to drive the sail 2 to rotate counterclockwise around the sail axis 1. At the same time, please refer to Figure 3 , the sail 2 forms a certain angle of attack with the wind direction X again, so that the sail 2 generates power perpendicular to the wind direction X, so that the actual heading Z of the navigation equipment is consistent with the target heading Y; on the contrary, the sail mechanism performs the opposite action.

[0085] In addition, when the tail wing 8 drives the sail 2 to rotate to a suitable angle of attack, the angle of the front wing 4 is adjusted synchronously, so that the angle of attack of the sail 2 becomes larger, thereby increasing the power of the sail 2.

[0086] That is, the sail 2 with the front wing 4 and the adaptive tail wing 8 can increase the speed of rotating the sail 2 when the wind direction changes suddenly, which is conducive to making the sailboat align the course more quickly.

[0087] It needs to be further explained that the tail wing drive 9 can obtain the wind direction X through a sensor, and then adjust the rotation angle of the tail wing 8 around the tail wing axis 7 according to the wind direction X; or, the tail wing drive 9 is input with a control instruction by an operator, and the operator inputs a control instruction based on the wind direction X judged by himself, so that the tail wing drive 9 drives the tail wing 8 to rotate to the target angle.

[0088] By adopting the above technical solution, the tail wing 8 is installed on the sail 2, and the target angle of the tail wing 8 is adjusted by the tail wing driving component 9; when the wind comes from the right side of the sailing device, the tail wing driving component 9 controls the tail wing 8 to rotate clockwise by a certain angle. At this time, the lift generated by the tail wing 8 will deflect the sail 2 and form an angle with the wind direction X. At this time, the lift generated by the sail 2 can push the sailing device to sail along the target heading Y. The opposite is true for the wind coming from the left side. When the wind direction X changes within a certain range, the deflection angle of the tail wing 8 is maintained, and the sail 2 can be adaptively adjusted to the optimal angle to provide sailing power for the sailing device.

[0089] The arrangement of the front wing 4 can form a vortex airflow on the side of the sail 2, thereby increasing the forward thrust generated by the sail 2;

[0090] When the sail 2 is driven by the tail wing 8 to rotate around the sail shaft 1 to form a first angle of attack with the wind direction X, at this time, the sail 2 can enable the sailing device to obtain a first speed, and the front wing 4 can also rotate according to the wind direction while the tail wing 8 rotates, and the front wing 4 also drives the sail 2 to rotate around the sail shaft 1 to a second angle of attack. At this time, the angle of the second angle of attack is greater than the angle of the first angle of attack, so the sail 1 can enable the sailing device to obtain a second speed, and the second speed is greater than the first speed. Therefore, the tail wing 8 and the front wing 4 rotate synchronously to a suitable angle to increase the angle of attack of the sail, thereby increasing the speed of the sailing device;

[0091] At the same time, the rotation of the tail wing 8 and the front wing 4 simultaneously applies torque to the sail 2, so that the sail 2 rotates faster around the sail axis 1. In this way, the sail 2 can increase the turning speed when the wind direction changes suddenly, which is more conducive to making the sailing equipment align the course faster.

[0092] Please refer again Figure 1In one embodiment, the sail mechanism further comprises a tail wing connector 10 connected to the sail 2, the length direction of the tail wing connector 10 is perpendicular to the sail axis 1, and a tail wing axis 7 is provided at one end of the tail wing connector 10 away from the sail 2, so that the tail wing 8 is spaced apart from the sail 2.

[0093] Here, it can be understood that the tail wing connector 10 refers to a component used to connect the sail 2 and the tail wing 8; one end of the tail wing connector 10 is connected to the sail 2, and the other end of the tail wing connector 10 is connected to the tail wing 8. The length direction of the tail wing connector 10 is perpendicular to the sail shaft 1. In this way, the force arm of the power provided by the tail wing 8 is increased, the torque of the sail shaft 1 is increased, and the sail 2 is more easily subjected to force and rotated.

[0094] By adopting the above technical solution, the moment arm of the tail wing 8 is increased, so that the sail 2 is easier to rotate, which is beneficial for rotating the sail 2 to a suitable angle of attack and improving the power of the sail 2.

[0095] In one embodiment, the tail wing axis 7 and the sail axis 1 form a preset angle, and the preset angle ranges from 0° to 90°.

[0096] Here, it can be understood that the tail wing axis 7 refers to the axis for the tail wing 8 to rotate; preferably, the tail wing axis 7 is parallel to the sail axis 1, so that the rotation trajectory of the tail wing 8 is parallel to the horizontal plane, the power generated by the tail wing 8 is parallel to the horizontal plane, and the power of the tail wing 8 is perpendicular to the sail axis 1, so that the sail 2 can be driven to rotate around the sail axis 1 to the maximum extent.

[0097] By adopting the above technical solution, it is achieved that the tail wing 8 drives the sail 2 to rotate around the sail axis 1.

[0098] In one embodiment, the tail shaft 7 extends from the tail connector 10 to both sides in a direction parallel to the sail shaft 1 , and a tail 8 is respectively provided at both ends of the tail shaft 7 .

[0099] Here, it can be understood that, in the present embodiment, the tail shaft 7 extends from the tail connector 10 toward the upper and lower sides, and a tail 8 is respectively provided at both ends of the tail shaft 7, that is, the two tail wings 8 are respectively provided at the two ends of the tail shaft 7, which improves the balance of the tail 8, so that the power applied to the tail connector 10 by the two tail wings 8 is the same, and the tail connector 10 is evenly stressed, thereby reducing the possibility of damage to itself.

[0100] By adopting the above technical solution, the balance degree of the force applied by the tail wing 8 is improved, and the possibility of damage to the tail wing connecting member 10 is reduced.

[0101] In one embodiment, the tail drive 9 is electrically connected to the sensor.

[0102] Here, it can be understood that the present embodiment controls the sail 2 through the tail wing 8, and does not directly control the angle of the sail 2; the sensor only needs to identify whether the wind direction X is the left or right side of the sailing device, and correspondingly let the tail wing 8 deflect to the right or left by an angle, and the tail wing 8 will generate a deflection torque, forcing the sail 2 to deflect and form an optimal angle with the wind, pushing the sailing device to sail, and realizing semi-automatic sail control. When the heading or wind direction X changes, the sail 2 can be adaptively adjusted to the optimal angle.

[0103] By adopting the above technical solution, the sail control mechanism is simplified and the adaptive performance of the sail 2 is improved.

[0104] In one embodiment, the sail 2 and the tail fin 8 are wing-shaped.

[0105] Here, it can be understood that the shape of the sail 2 is wing-shaped, that is, the sail 2 is a wing-shaped sail; in order to improve the energy-saving efficiency of the sail 2, better aerodynamic characteristics are mainly obtained by changing the cross-sectional shape of the sail 2. The wing-shaped sail of this embodiment is a rigid wing-shaped sail.

[0106] By adopting the above technical solution, the power that the sail 2 can provide to the sailing equipment is increased.

[0107] In one embodiment, the tail fin 8 is located at the rear side of the sail 2 .

[0108] Here, it can be understood that the sail 2 has a windward end and a leeward end; in the present embodiment, the windward end of the sail 2 is the larger end of the sail 2, and the leeward end is the smaller end of the sail 2; the tail wing 8 is located on the rear side of the sail 2, so that the tail wing 8 can assist the leeward end of the sail 2 to rotate to a suitable position when subjected to wind.

[0109] By adopting the above technical solution, the tail wing 8 can assist the leeward end of the sail 2 to rotate to a suitable position when subjected to wind force.

[0110] like Figure 8 As shown, in one embodiment, the tail driving component 9 includes a tail motor 91 and a tail transmission arm 92, the tail motor 91 is fixedly connected to the sail 2, the tail motor 91 is provided with a power output shaft, the tail transmission arm 92 is rotatably connected to the tail 8, and the power output shaft is used to drive the transmission arm 92 to drive the tail 8 to rotate around the tail shaft 7.

[0111] Here, it can be understood that the tail wing driving component 9 is a steering gear.

[0112] By adopting the above technical solution, the tail wing driving component 9 has a simple structure and is easy to manufacture, which can reduce the manufacturing cost of the sail mechanism.

[0113] In one embodiment, the sail mechanism further comprises a measuring device, which is arranged on at least one of the sail shaft 1 , the sail 2 , the canard shaft 3 , the canard 4 and the tail wing 8 .

[0114] Here, it can be understood that the measuring device includes but is not limited to radar measurement or image measurement.

[0115] By adopting the above technical solution, the functionality of the sail mechanism is improved.

[0116] In a second aspect, a sailing device is provided, comprising a sailing device body and the above-mentioned sail mechanism, wherein the sail mechanism is arranged on the sailing device body.

[0117] By adopting the above technical solution, on the basis of having the advantages of the sail mechanism of the above embodiment, the navigation equipment of this embodiment also has the advantages of energy saving and speed increase.

[0118] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sail mechanism, characterized in that: include: A sail shaft (1), a sail (2) connected to the sail shaft (1), a forewing shaft (3) connected to the sail (2), a forewing (4) connected to the forewing shaft (3), and a forewing driving component (5); the sail (2) can rotate around the sail shaft (1), the forewing shaft (3) is located at the front side of the sail (2), the forewing (4) can rotate around the forewing shaft (3), and the forewing driving component (5) is used to drive the forewing shaft (3) to rotate around the forewing shaft (3) to a target angle, so that the angle of attack of the sail (2) becomes larger.

2. The sail (2) mechanism according to claim 1, characterized in that: The front wing axis (3) forms a preset angle with the sail axis (1), and the preset angle ranges from 0° to 90°.

3. The sail mechanism according to claim 1, characterized in that: The sail mechanism further comprises a front wing connecting member (6) connected to the sail (2), the length direction of the front wing connecting member (6) being perpendicular to the sail shaft (1), and the front wing shaft (3) is arranged at one end of the front wing connecting member (6) away from the sail (2), so that the front wing (4) is spaced apart from the sail (2).

4. The sail mechanism according to claim 3, characterized in that: The front wing axis (3) extends from the front wing connecting member (6) on both sides in a direction parallel to the sail axis (1), and a front wing (4) is respectively provided at both ends of the front wing axis (3).

5. The sail mechanism according to any one of claims 1 to 4, characterized in that: The sail (2) and the front wing (4) are wing-shaped.

6. The sail mechanism according to any one of claims 1 to 4, characterized in that: The sail mechanism also includes a sensor for acquiring wind information, and the front wing driving component (5) is electrically connected to the sensor.

7. The sail mechanism according to any one of claims 1 to 4, characterized in that: The sail mechanism further comprises a tail wing shaft (7) connected to the sail (2), a tail wing (8) connected to the tail wing shaft (7), and a tail wing driving component (9); the tail wing shaft (7) is arranged on the rear side of the sail (2); the tail wing driving component (9) can drive the tail wing (8) to rotate around the tail wing shaft (7) to a target angle, so that the angle of attack of the sail (2) becomes larger.

8. The sail mechanism according to claim 7, characterized in that: The sail mechanism further comprises a tail connecting member (10) connected to the sail (2), the length direction of the tail connecting member (10) being perpendicular to the sail shaft (1), and the tail shaft (7) is provided at one end of the tail connecting member (10) away from the sail (2), so that the tail (8) is spaced apart from the sail (2).

9. The sail mechanism according to any one of claims 1 to 4, characterized in that: The sail mechanism further comprises a measuring device, which is arranged on at least one of the sail shaft (1), the sail (2), the front wing shaft (3), the front wing (4) and the tail wing (8).

10. A navigation device, characterized in that: The invention comprises a navigation equipment body and a sail mechanism according to any one of claims 1 to 9, wherein the sail mechanism is arranged on the navigation equipment body.

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