Hidden type turnover hydrofoil structure

By using a retractable and rotatable hydrofoil structure, and employing mechanisms such as servo motors and electric telescopic rods, the rotation angle of the hydrofoil can be adjusted to fit the hull, thus solving the instability problem of the hydrofoil when moving in water and achieving stable lift support.

CN224117465UActive Publication Date: 2026-04-14安徽省飞腾航空科技有限公司
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
安徽省飞腾航空科技有限公司
Filing Date
2025-06-11
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

When existing hydrofoils move in water, the entire upper surface of the wing is in a cavitation bubble, and only the lower surface is in contact with the water flow. This causes the hydrofoil to have an unstable draft due to different loads on the hydrofoil, making it impossible to adjust the angle to provide stable lift in coordination with the water surface.

Method used

A concealable and flip-up hydrofoil structure was designed. A servo motor drives the connecting rod and gear transmission rod to rotate the wing 90 degrees so that it is flush with the hull and concealed. The wing can be adjusted to contact the water surface at different angles. Combined with an electric telescopic rod and a positioning mechanism to fix the position of the wing, stable lift is achieved.

Benefits of technology

It achieves stable lift when the hydrofoil moves in water, avoids instability caused by the concealment of the upper wing surface, adapts to water surface contact under different load conditions, and provides stable lift support.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224117465U_ABST
    Figure CN224117465U_ABST
Patent Text Reader

Abstract

The utility model discloses a concealable turnover hydrofoil structure which comprises a hydrofoil body, connecting boxes are fixedly connected to the front end and the back end of the top of the ship body, hydrofoil mechanisms are fixedly connected to the right sides of the inner walls of the connecting boxes and comprise bearings, transmission rods, connecting sleeves and plate wings, the bearings are fixedly connected to the right sides of the inner walls of the connecting boxes, and the transmission rods are movably connected to inner cavities of the bearings; the right side of the transmission rod penetrates through the right side of the connecting box and is fixedly connected with a connecting sleeve, the right side of the connecting sleeve is fixedly connected with a plate wing, and an inner cavity of the connecting box is transversely and fixedly connected with a driving mechanism. Through the arrangement of the hydrofoil mechanism, the transmission rod can be stressed in the bearing to complete rotation, the transmission rod rotates to drive the connecting sleeve and the plate wing to rotate synchronously, the plate wing is flush with and attached to the ship body to achieve attachment hiding when rotating by 90 degrees, and the plate wing can be adjusted to rotate by different angles so that the plate wing can make contact with the water surface in different depths to find stable lifting force.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of hydrofoil technology, specifically a retractable and rotatable hydrofoil structure. Background Technology

[0002] A hydrofoil is an airfoil that moves in water and generates lift, just like an airfoil moves in the air. Hydrofoil boats utilize this property to lift the hull out of the water, greatly reducing fluid resistance. A typical hydrofoil consists of a wing panel that generates lift, a strut connecting the wing panel to the hull, and other accessories.

[0003] In the comparative case, patent application number CN220682591U discloses a surfing device with an electric hydrofoil structure, including a hydrofoil. A fixed base is fixedly installed on one side of the bottom of the hydrofoil, a connecting rod is fixedly installed at the bottom of the fixed base, and a mounting frame is fixedly installed at the bottom of the connecting rod. A front wing plate and a rear wing plate are fixedly installed at both ends of the mounting frame, and a connecting base is fixedly installed at the bottom of the surface of the connecting rod. This electric hydrofoil surfing device can either have a connecting rod, a front wing plate, and a rear wing plate at the bottom of the hydrofoil, and a propeller installed on the connecting rod to enhance the overall buoyancy and provide power, or the propeller can be directly fixed to the bottom of the hydrofoil via the fixed frame to directly provide power to the hydrofoil. The propeller is driven by a motor to provide forward thrust to the overall structure to assist the hydrofoil in moving forward, thus making the hydrofoil drift and glide on the water surface more effortless.

[0004] However, in implementing the relevant technology, the following problems were found in the above-mentioned electric hydrofoil structure surfing device. The comparative case uses a structure such as a connecting rod, front wing plate and rear wing plate, and the propeller is installed on the connecting rod. While strengthening the overall buoyancy, it also provides power. The propeller can also be directly fixed to the bottom of the hydrofoil through a fixing frame to directly provide power to the hydrofoil. When the existing hydrofoil moves in the water, its upper wing surface is completely in a cavitation bubble, and only the lower wing surface is in contact with the water flow. The different loads of the hydrofoil make the draft of the hydrofoil unstable, and it is impossible to adjust the angle to cooperate with the water surface to provide lift stability, which reduces the convenience of using the hydrofoil.

[0005] Therefore, it is necessary to design and modify the hydrofoil to effectively prevent the upper surface of the hydrofoil from being completely cavitated when it moves in the water, with only the lower surface in contact with the water flow. The different loads of the hydrofoil cause the draft of the hydrofoil to be unstable, making it impossible to adjust the angle to provide stable lift to the water surface. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a retractable and rotatable hydrofoil structure, which has the advantages of being retractable, adjustable and retractable. This solves the problem that when a hydrofoil moves in water, its upper surface is completely in a cavitation bubble, with only the lower surface in contact with the water flow. Furthermore, the different loads of the hydrofoil cause unstable draft depths, making it impossible to adjust the angle to provide stable lift to the water surface.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a concealable and rotatable hydrofoil structure, comprising;

[0008] The hull has a connecting box fixedly connected to both the front and back ends of the top of the hull, and a hydrofoil mechanism is fixedly connected to the right side of the inner wall of the connecting box.

[0009] The hydrofoil mechanism includes a bearing, a transmission rod, a connecting sleeve, and a plate wing. The bearing is fixedly connected to the right side of the inner wall of the connecting box. The transmission rod is movably connected to the inner cavity of the bearing. The right side of the transmission rod passes through the right side of the connecting box and is fixedly connected to the connecting sleeve. The right side of the connecting sleeve is fixedly connected to the plate wing. The drive mechanism is laterally fixedly connected to the inner cavity of the connecting box.

[0010] In a preferred embodiment of this utility model, the driving mechanism includes a support frame, a servo motor, a connecting rod, and a gear. The support frame is horizontally fixedly connected to the inner cavity of the connecting box. The servo motor is fixedly connected to the left side of the top of the support frame. The output end of the servo motor is fixedly connected to the connecting rod. The right side of the connecting rod extends through the interior of the bearing and is fixedly connected to the left side of the transmission rod. A gear is fixedly sleeved on the surface of the connecting rod. Positioning mechanisms are fixedly connected to the front and back ends of the inner wall of the connecting box.

[0011] In a preferred embodiment of this utility model, the positioning mechanism includes a frame, an electric telescopic rod, a T-shaped rod, a support plate, a toothed plate, and a rectangular plate. The frame is fixedly connected to both the front and back ends of the inner wall of the connecting box. The electric telescopic rod is fixedly connected to the inner side of the frame. The T-shaped rod is fixedly connected to the right side of the electric telescopic rod. The support plate is fixedly connected to both the front and back ends of the inner wall of the connecting box. The toothed plate is slidably connected to the top of the support plate. The inner side of the toothed plate meshes with the surface of a gear. The top and bottom of the front end of the toothed plate are fixedly connected to the rectangular plate. The top and bottom of the T-shaped rod are slidably connected to the inner side of the rectangular plate.

[0012] As a preferred embodiment of this utility model, a groove is provided on the top of the pallet and at the position corresponding to the toothed plate, and the groove is used in conjunction with the toothed plate.

[0013] As a preferred embodiment of this utility model, the surface of the rectangular plate is provided with an oblique groove corresponding to the position of the T-shaped rod, and the oblique groove is used in conjunction with the T-shaped rod.

[0014] As a preferred embodiment of this invention, the material of the wing plate is carbon fiber, and the shape of the wing plate is V-shaped.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, through the setting of the hydrofoil mechanism, enables the transmission rod to rotate under the force inside the bearing. The rotation of the transmission rod drives the connecting sleeve and the plate to rotate synchronously. When the plate rotates 90 degrees, it is flush with the hull and fits in close contact to achieve a hidden fit. It is also possible to adjust the rotation angle of the plate to make it contact the water surface at different depths to find a stable lift. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This utility model Figure 1 Three-dimensional view of the connecting box structure;

[0019] Figure 3 This utility model Figure 2 3D view of the support frame, servo motor and connecting rod structure;

[0020] Figure 4 This utility model Figure 2 Three-dimensional view of the central frame, electric telescopic pole, and T-shaped pole structure.

[0021] In the diagram: 1. Hull; 2. Connecting box; 3. Hydrofoil mechanism; 31. Bearing; 32. Transmission rod; 33. Connecting sleeve; 34. Wing plate; 4. Drive mechanism; 41. Support frame; 42. Servo motor; 43. Connecting rod; 44. Gear; 5. Positioning mechanism; 51. Frame; 52. Electric telescopic rod; 53. T-shaped rod; 54. Support plate; 55. Toothed plate; 56. Rectangular plate; 6. Slide groove; 7. Inclined groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 4 As shown, the present invention provides a retractable and rotatable hydrofoil structure, comprising:

[0024] Hull 1, with connecting box 2 fixedly connected to the front and back ends of the top of hull 1, and hydrofoil mechanism 3 fixedly connected to the right side of the inner wall of connecting box 2.

[0025] The hydrofoil mechanism 3 includes a bearing 31, a transmission rod 32, a connecting sleeve 33, and a plate 34. The bearing 31 is fixedly connected to the right side of the inner wall of the connecting box 2. The transmission rod 32 is movably connected to the inner cavity of the bearing 31. The right side of the transmission rod 32 passes through the right side of the connecting box 2 and is fixedly connected to the connecting sleeve 33. The plate 34 is fixedly connected to the right side of the connecting sleeve 33. The drive mechanism 4 is fixedly connected laterally to the inner cavity of the connecting box 2.

[0026] refer to Figure 3 The drive mechanism 4 includes a support frame 41, a servo motor 42, a connecting rod 43, and a gear 44. The support frame 41 is horizontally fixedly connected to the inner cavity of the connecting box 2. The servo motor 42 is fixedly connected to the left side of the top of the support frame 41. The output end of the servo motor 42 is fixedly connected to the connecting rod 43. The right side of the connecting rod 43 extends into the interior of the bearing 31 and is fixedly connected to the left side of the transmission rod 32. The gear 44 is fixedly sleeved on the surface of the connecting rod 43. The front end and back end of the inner wall of the connecting box 2 are both fixedly connected to the positioning mechanism 5.

[0027] As a technical optimization of this utility model, by setting the drive mechanism 4, the servo motor 42 can work to drive the connecting rod 43 and the gear 44 to rotate clockwise, and the rotation of the connecting rod 43 transmits power to the transmission rod 32 to make the subsequent connecting sleeve 33 and the plate wing 34 rotate and adjust.

[0028] refer to Figure 4 The positioning mechanism 5 includes a frame 51, an electric telescopic rod 52, a T-shaped rod 53, a support plate 54, a toothed plate 55, and a rectangular plate 56. The frame 51 is fixedly connected to the front and back ends of the inner wall of the connecting box 2. The electric telescopic rod 52 is fixedly connected to the inner side of the frame 51. The T-shaped rod 53 is fixedly connected to the right side of the electric telescopic rod 52. The support plate 54 is fixedly connected to the front and back ends of the inner wall of the connecting box 2. The toothed plate 55 is slidably connected to the top of the support plate 54. The inner side of the toothed plate 55 meshes with the surface of the gear 44. The rectangular plate 56 is fixedly connected to the top and bottom of the front end of the toothed plate 55. The top and bottom of the T-shaped rod 53 are slidably connected to the inner side of the rectangular plate 56.

[0029] As a technical optimization of this utility model, by setting the positioning mechanism 5, the electric telescopic rod 52 can work to retract and the T-shaped rod 53 can move. The retraction displacement of the T-shaped rod 53 forces the rectangular plate 56 to move inward. The movement of the rectangular plate 56 drives the toothed plate 55 to move along with it. The toothed plate 55 moves along the support plate 54 and remains stable until the toothed plate 55 meshes and is fixed with both sides of the gear 44.

[0030] refer to Figure 4 A groove 6 is provided on the top of the support plate 54 and at the position corresponding to the toothed plate 55. The groove 6 is used in conjunction with the toothed plate 55.

[0031] As a technical optimization of this utility model, the toothed plate 55 can move back and forth inside the sliding groove 6 by setting the sliding groove 6, and at the same time, it plays a limiting role, avoiding the phenomenon of toothed plate 55 deviating during the movement.

[0032] refer to Figure 4 A slanted groove 7 is provided on the surface of the rectangular plate 56 at the position corresponding to the T-shaped rod 53. The slanted groove 7 is used in conjunction with the T-shaped rod 53.

[0033] As a technical optimization of this utility model, the inclined groove 7 can assist the T-shaped rod 53 in its work and also serve as a limit, preventing the T-shaped rod 53 from detaching during movement.

[0034] refer to Figure 2 The material of the wing 34 is carbon fiber, and the shape of the wing 34 is V-shaped.

[0035] As a technical optimization of this utility model, the strength of the plate wing 34 can be increased by setting the plate wing 34, and the phenomenon of corrosion and breakage caused by water flow impact can be avoided.

[0036] The working principle and usage process of this utility model are as follows: During use, the hull 1 floats on the water surface, while the connecting box 2 and the wing plate 34 are submerged. Then, the servo motor 42 is activated, driving the connecting rod 43 and gear 44 to rotate synchronously. The rotation of the connecting rod 43 causes the transmission rod 32 to rotate stably inside the bearing 31. The rotation of the transmission rod 32 causes the connecting sleeve 33 and the wing plate 34 to rotate 90 degrees. The wing plate 34 rotates and fits snugly against the bottom of the hull 1 for storage and concealment. Alternatively, the rotation of the wing plate 34 can be controlled by the servo motor 42 at different angles to accommodate varying loads on the hull 1, adapting to different underwater conditions and currents, and providing a certain angle of attack. The wing plate 34 has an arched cross-section, thus generating lift. In conjunction with the movement of the hull 1, once the angle of the flap 34 is determined, the electric telescopic rod 52 is activated. The electric telescopic rod 52 retracts, causing the T-shaped rod 53 to move accordingly. The movement of the T-shaped rod 53, in conjunction with the inclined groove 7, forces the rectangular plate 56 to move inward. The inward movement of the rectangular plate 56 causes the toothed plate 55 to move accordingly. The toothed plate 55 moves stably along the slide groove 6 inside the support plate 54 until the toothed plate 55 meshes and locks with both sides of the gear 44. The gear 44 is restricted by the toothed plate 55 and cannot rotate, thus fixing the positions of the connecting rod 43, transmission rod 32, connecting sleeve 33, and flap 34. This prevents the flap 34 from shaking even when subjected to impact, thereby achieving the function of flipping the flap 34 for concealment or adjustment.

[0037] In summary, this concealable and tumbling hydrofoil structure works in conjunction with the hull 1, connecting box 2, hydrofoil mechanism 3, bearing 31, transmission rod 32, connecting sleeve 33, wing plate 34, and drive mechanism 4. During operation, the transmission rod 32 rotates under the force inside the bearing 31. The rotation of the transmission rod 32 drives the connecting sleeve 33 and wing plate 34 to rotate synchronously. When the wing plate 34 rotates 90 degrees, it is flush with the hull 1 and concealed. The rotation angle of the wing plate 34 can also be adjusted to vary the depth of contact with the water surface to find a stable lift. This solves the problem that existing hydrofoils, when moving in water, have their upper wing surface completely cavitated, with only the lower wing surface in contact with the water flow. The different loads of the hydrofoils cause unstable drafts, making it impossible to adjust the angle to provide stable lift.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," 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 process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concealable and rotatable hydrofoil structure, comprising: The hull (1) has a connecting box (2) fixedly connected to the front and back ends of the top of the hull (1), and a hydrofoil mechanism (3) is fixedly connected to the right side of the inner wall of the connecting box (2). The hydrofoil mechanism (3) is characterized in that it includes a bearing (31), a transmission rod (32), a connecting sleeve (33), and a plate wing (34). The bearing (31) is fixedly connected to the right side of the inner wall of the connecting box (2). The transmission rod (32) is movably connected to the inner cavity of the bearing (31). The right side of the transmission rod (32) passes through the right side of the connecting box (2) and is fixedly connected to the connecting sleeve (33). The plate wing (34) is fixedly connected to the right side of the connecting sleeve (33). The drive mechanism (4) is fixedly connected laterally to the inner cavity of the connecting box (2).

2. A retractable hydrofoil structure according to claim 1, wherein: The drive mechanism (4) includes a support frame (41), a servo motor (42), a connecting rod (43), and a gear (44). The support frame (41) is fixedly connected to the inner cavity of the connecting box (2) laterally. The servo motor (42) is fixedly connected to the left side of the top of the support frame (41). The output end of the servo motor (42) is fixedly connected to the connecting rod (43). The right side of the connecting rod (43) extends through the interior of the bearing (31) and is fixedly connected to the left side of the transmission rod (32). The gear (44) is fixedly sleeved on the surface of the connecting rod (43). The front end and back end of the inner wall of the connecting box (2) are both fixedly connected to a positioning mechanism (5).

3. A retractable hydrofoil structure according to claim 2, wherein: The positioning mechanism (5) includes a frame (51), an electric telescopic rod (52), a T-shaped rod (53), a support plate (54), a toothed plate (55), and a rectangular plate (56). The front end and back end of the inner wall of the connecting box (2) are fixedly connected to the frame (51). The inner side of the frame (51) is fixedly connected to the electric telescopic rod (52). The right side of the electric telescopic rod (52) is fixedly connected to the T-shaped rod (53). The front end and back end of the inner wall of the connecting box (2) are fixedly connected to the support plate (54). The top of the support plate (54) is slidably connected to the toothed plate (55). The inner side of the toothed plate (55) meshes with the surface of the gear (44). The top and bottom of the front end of the toothed plate (55) are fixedly connected to the rectangular plate (56). The top and bottom of the T-shaped rod (53) are slidably connected to the inner side of the rectangular plate (56).

4. A retractable hydrofoil structure according to claim 3, wherein: A groove (6) is provided on the top of the pallet (54) and at the position corresponding to the toothed plate (55), and the groove (6) is used in conjunction with the toothed plate (55).

5. The retractable and rotatable hydrofoil structure according to claim 3, characterized in that: The rectangular plate (56) has an oblique groove (7) on its surface corresponding to the position of the T-shaped rod (53), and the oblique groove (7) is used in conjunction with the T-shaped rod (53).

6. The retractable and rotatable hydrofoil structure according to claim 1, characterized in that: The material of the wing (34) is carbon fiber, and the shape of the wing (34) is V-shaped.

Citation Information

Patent Citations

  • Surfing device of electric hydrofoil structure

    CN220682591U