Adjustable marine power hydrofoil
The design of the adjustable marine hydrofoil solves the problems of large footprint and grounding issues associated with fixed hydrofoils when approaching shore. It enables the adjustable folding of the hydrofoil, improving the adaptability of the hull in shallow waters and when approaching shore.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU MARITIME INST
- Filing Date
- 2024-03-29
- Publication Date
- 2026-04-21
AI Technical Summary
Existing shipborne powered hydrofoils, due to their fixed structure, cannot be retracted unless necessary, resulting in a large footprint when approaching shore and a high risk of running aground.
An adjustable marine hydrofoil was designed. Through the combination of a connecting frame, a propeller, a flexible shaft, front and rear wing plates, and a drive component, the hydrofoil can be adjusted, including vertical lifting and horizontal retraction, to adapt to different navigation conditions.
It enables the powered hydrofoils to be retracted when not in use, reducing the footprint, lowering the risk of running aground, and improving the hull's adaptability in shallow waters and when approaching shore.
Smart Images

Figure CN224146110U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of marine components, specifically an adjustable marine power hydrofoil. Background Technology
[0002] Hydrofoils are powered hydrofoils mounted on the bottom of the hull. These hydrofoils provide lift, allowing the hull to leave the water at high speeds. This reduces water resistance, enabling the hull to reach greater speeds and minimizing wave impact, resulting in a more comfortable ride. The powered hydrofoil consists of a hydrofoil and a propeller, both integrally fixed to the bottom of the hull via a support frame. The drive shaft is typically concealed within the support frame, extending into the hull and connecting to the internal power system.
[0003] The inventors believe that the current powered hydrofoil has certain structural defects: the powered hydrofoil is a fixed structure in appearance and cannot be retracted when not necessary; since the width of the powered hydrofoil is much larger than the width of the hull, it will occupy a large area in the water when the hull is approaching the shore, which is not conducive to docking at the shore; and when the hull is traveling at low speed in shallow water, the distance between the hydrofoil and the bottom of the hull is large and it cannot be retracted, which can easily lead to the danger of running aground. Utility Model Content
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] Given the following technical problems in the existing technology: current shipborne powered hydrofoils, due to their fixed structural design, cannot be retracted when not in use, which can easily cause inconvenience when not in use. Therefore, the purpose of this utility model is to fully solve this problem by enabling the structure of the powered hydrofoil to be adjusted to a certain extent, thereby reducing the obstruction caused by the surrounding environment when not in use.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0007] An adjustable marine hydrofoil includes a propulsion unit, and:
[0008] A connecting frame for maintaining a movable connection with the hull, the thruster being mounted on the connecting frame;
[0009] A flexible shaft is connected to one end of the propeller drive shaft, and the other end is used to connect to the hull;
[0010] A front wing plate is slidably mounted on the connecting frame, and a rear wing plate is fixedly mounted on the connecting frame. A driving component connects the front wing plate and the connecting frame.
[0011] As a preferred technical solution for an adjustable marine hydrofoil, the connecting frame is hinged with multiple connecting rods, and the other end of the connecting rods is used for rotatable connection with the hull.
[0012] As a preferred technical solution for an adjustable marine hydrofoil, the connecting frame includes an integrally constructed cross frame and a long shaft frame, with at least two connecting rods hinged to the cross frame and arranged side by side in a transverse direction.
[0013] As a preferred technical solution for an adjustable marine hydrofoil, an end frame is fixedly connected to the front wing plate, and the end frame is slidably engaged with the cross frame.
[0014] As a preferred technical solution for an adjustable marine hydrofoil, the drive component includes an automatic push rod mounted on the crossbeam, one end of which is connected to the end frame.
[0015] As a preferred technical solution for adjustable marine hydrofoils, the automatic push rod can be an electric push rod or a pneumatic push rod.
[0016] The beneficial effects of the adjustable marine hydrofoil provided by this utility model are as follows: through the cooperation of the connecting frame and the sliding setting of the front wing plate on the connecting frame, the distance between the entire hydrofoil and the hull can be adjusted, and the extension range in the horizontal direction can also be adjusted. This allows the appearance of the hydrofoil to be adjusted when the hull is traveling at low speed in shallow water or when it is docked at the shore, so that the hull can better adapt to the current navigation state and the surrounding environment. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:
[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention when installed in conjunction with the ship hull.
[0019] Figure 2 Regarding this utility model Figure 1 Another perspective view.
[0020] Figure 3 Regarding this utility model Figure 1 Another perspective view.
[0021] Figure 4 Regarding this utility model Figure 1 Side view.
[0022] Figure 5 Regarding this utility model Figure 1 Front view.
[0023] Figure 6 Regarding this utility model Figure 1 A bottom view.
[0024] Figure 7 This is a partial structural diagram of the present invention.
[0025] Figure 8 This is a split view of some of the structures in this utility model.
[0026] Figure 9 This is a schematic diagram of the connection between the propeller and the flexible shaft described in this utility model.
[0027] Reference numerals: 1. Thruster; 2. Connecting frame; 201. Cross frame; 202. Long shaft frame; 3. Hull; 4. Flexible shaft; 5. Front wing plate; 6. Rear wing plate; 7. Drive component; 701. Automatic push rod; 8. Connecting rod; 9. End frame; 10. Rotating shaft. Detailed Implementation
[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0031] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0032] Reference Figure 1-6 One embodiment of this utility model provides an adjustable marine hydrofoil, including a propeller 1 and the following parts:
[0033] The connecting frame 2 is used to maintain a movable connection with the hull 3. Specifically, the structure of the connecting frame 2 allows it to adjust its distance relative to the bottom of the ship and to move up and down relative to the hull 3. The propeller 1 is mounted on the connecting frame 2.
[0034] The flexible shaft 4, which is connected to one end of the drive shaft of the thruster 1, is specifically connected as follows: Figure 9 As shown, the other end of the flexible shaft 4 is used to connect to the power system on the hull 3, thereby providing power to the propulsion unit 1 for operation;
[0035] The front wing plate 5, which is slidably mounted on the connecting frame 2, and the rear wing plate 6, which is fixedly mounted on the connecting frame 2, are distributed in sequence with respect to the hull 3. A driving component 7 is connected between the front wing plate 5 and the connecting frame 2, so that the sliding of the front wing plate 5 on the connecting frame 2 can be controlled.
[0036] Based on the above, the powered hydrofoil provided by this utility model can vertically raise or lower the entire structure relative to the hull 3 by adjusting the distance between the connecting frame 2 and the hull 3, thereby adjusting the wading depth underwater. When the hull 3 travels at low speed into a diving area, the entire powered hydrofoil can be raised close to the bottom of the hull, thus reducing the risk of running aground and allowing the hull 3 to adapt to navigation in diving areas. By controlling the sliding of the two front wing plates 5, the distance between the two front wing plates 5 can be reduced, thereby maintaining the overall size contraction and reducing the horizontal displacement of the entire powered hydrofoil. The "occupancy" area of the hull 3 allows it to better adapt to the limited driving conditions in narrow waterways or when approaching the shore. During the entire adjustment process, the flexible shaft 4 enables the propeller 1 to still receive power from the hull 3 while moving relative to it, allowing the hull 3 to maintain forward momentum in various states. The number of propellers 1 can be two or more, and they can be distributed laterally. By controlling the power input of the two propellers 1, a thrust difference can be formed between the two propellers 1, thereby meeting the turning requirements of the hull 3 when it is driving.
[0037] Furthermore, refer to Figure 1-4Regarding the vertical adjustment method of the connecting frame 2 relative to the hull 3, multiple connecting rods 8 are hinged to the connecting frame 2, and the other end of each connecting rod 8 is used for rotatable connection with the hull 3. Thus, through the cooperation of the connecting rods 8, the connecting frame 2 and the hull 3 form a parallelogram-like structure. By controlling the rotation of the ends of the connecting rods 8 on the hull 3, the raising and lowering of the connecting frame 2 can be controlled. Figure 2 and 3 As shown, the rotating shaft 10 at the end of one of the connecting rods 8 is inserted into the hull 3. The connecting frame 2 can be raised and lowered by driving the rotating shaft 10 to rotate through the power system inside the hull 3, thus making the adjustment process simple and easy to implement.
[0038] Furthermore, refer to Figure 1 , Figure 2 as well as Figure 6 The connecting frame 2 includes a cross frame 201 and a long shaft frame 202 integrally constructed. The cross frame 201 is located near the front of the hull 3, and the long shaft frame 202 is located at the rear. At least two of the connecting rods 8 are hinged to the cross frame 201 and arranged side by side in a transverse direction. This structural arrangement helps to maintain the horizontal stability of the entire connecting frame 2, so that it does not have a tendency to tilt, thereby improving the stability of the entire power hydrofoil during operation.
[0039] Furthermore, refer to Figure 7 and Figure 8 Regarding the sliding method of the front wing plate 5, an end frame 9 is fixedly connected to the front wing plate 5. The end frame 9 and the front wing plate 5 can be integrally formed. The end frame 9 and the cross frame 201 maintain a sliding fit, thereby realizing the sliding setting of the front wing plate 5 relative to the cross frame 201. The structural support provided by the end frame 9 helps to improve the stability of the sliding of the front wing plate 5 relative to the cross frame 201, thereby improving the smoothness of the front wing plate 5 during adjustment.
[0040] Furthermore, refer to Figure 7 and Figure 8The driving component 7 includes an automatic push rod 701 mounted on the crossbeam 201. The movable end of the automatic push rod 701 is connected to the end frame 9, thereby controlling the sliding of the end frame 9 when the automatic push rod 701 moves, so as to realize the position adjustment of the front wing plate 5. The design of the automatic push rod 701 makes the adjustment process simple and easy to operate. Regarding the form of the automatic push rod 701, an electric push rod can be used. The electric push rod has a simple structure and is easy to operate. It can be controlled simply by connecting it to the hull 3 through a wire. Alternatively, the automatic push rod 701 can also be a pneumatic push rod. The advantage of the pneumatic push rod here is that it does not need to worry about the impact of electric leakage underwater and does not require waterproofing. When a pneumatic push rod is used, its cylinder can be connected to the hull 3 by a conduit, and a corresponding pump device can be set in the hull 3 and connected to the conduit to supply air to the pneumatic push rod and realize the extension and retraction of its movable end.
[0041] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0042] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A regulated marine power hydrofoil comprising a propeller (1), characterized in that: Also includes: A connecting frame (2) is used to maintain a movable connection with the hull (3), and the thruster (1) is disposed on the connecting frame (2); A flexible shaft (4) is connected to one end of the drive shaft of the propeller (1), and the other end is used to connect to the hull (3); A front wing plate (5) is slidably mounted on the connecting frame (2) and a rear wing plate (6) is fixedly mounted on the connecting frame (2). A driving component (7) is connected between the front wing plate (5) and the connecting frame (2).
2. The adjustable marine power hydrofoil of claim 1, wherein: Multiple connecting rods (8) are hinged on the connecting frame (2), and the other end of the connecting rod (8) is used for rotatable connection with the hull (3).
3. The adjustable marine power hydrofoil of claim 2, wherein: The connecting frame (2) includes an integrally constructed cross frame (201) and a long shaft frame (202), and at least two of the connecting rods (8) are hinged to the cross frame (201) and arranged side by side in a transverse direction.
4. The adjustable marine power hydrofoil of claim 2, wherein: An end frame (9) is fixedly connected to the front wing plate (5), and the end frame (9) is slidably engaged with the cross frame (201).
5. The adjustable marine power hydrofoil of claim 4, wherein: The drive unit (7) includes an automatic push rod (701) mounted on the crossbeam (201), one end of which is connected to the end frame (9).
6. An adjustable marine power hydrofoil according to claim 5, characterized in that: The automatic push rod (701) is an electric push rod.
7. The adjustable marine power hydrofoil of claim 5, wherein: The automatic push rod (701) is a pneumatic push rod.