Electric hydrofoil board assembly
By employing a concave-convex shape fit and a limiting block structure between the inflatable plate and the battery compartment of the electric hydrofoil, the problem of fixing the inflatable plate and the battery compartment is solved, ensuring the battery compartment is stably installed and improving the reliability and safety of the electric hydrofoil.
Patent Information
- Application Number
- CN202522447170.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-18
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-18
AI Technical Summary
The difficulty in securing the inflatable panel to the battery compartment makes it easy for the battery compartment to fall off or detach, affecting the normal use of the electric hydrofoil.
The inflatable plate is made of PVC mesh wire material. The side wall of the battery compartment and the side wall of the mounting hole are fitted with concave and convex shapes. Combined with the limiting block and connecting ring structure, the battery compartment is fixed in the inflatable plate and prevented from falling off.
This design achieves a stable installation of the battery compartment within the inflatable plate, preventing the battery compartment from falling or detaching during use and improving the reliability and safety of the electric hydrofoil.
Smart Images

Figure CN224929203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydrofoils, and more particularly to an electric hydrofoil assembly. Background Technology
[0002] Electric hydrofoils are a new type of water sports equipment that combines an electric power system and hydrofoil technology, and are hailed as "waterplanes." Electric hydrofoils mainly consist of core components such as the board body, battery, motor, hydrofoils, propeller, and remote control. The board body is the platform on which the rider stands; the battery provides power to the motor, which drives the propeller to rotate, generating forward propulsion; the hydrofoils are installed under the board body and are the key component for achieving "water flight" (15-4). Some boards use inflatable bodies, and how to secure the inflatable body to the battery compartment has become a current challenge. Utility Model Content
[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide an electric hydrofoil assembly that facilitates the fixing of the inflatable plate and the battery compartment.
[0004] To achieve the above objectives, one of the technical solutions adopted by this utility model is: an electric hydrofoil assembly, comprising an inflatable plate body, a hydrofoil, and a propeller. The inflatable plate body is made of PVC mesh wire drawing material. The rear half of the inflatable plate body has a first mounting hole, in which a battery compartment is installed. The battery compartment is used to supply power to the propeller. The side wall of the battery compartment has a concave-convex shape to match the side wall of the first mounting hole. A mast is provided at the bottom of the battery compartment. A hydrofoil is installed at the bottom of the mast, and the propeller is installed on the mast.
[0005] The beneficial effect of the electric hydrofoil assembly of this utility model is that the side wall of the battery compartment and the side wall of the first mounting hole are set in a concave-convex shape to fit together. When the inflatable plate is fully inflated, the concave-convex design will lock the battery compartment in place and prevent it from falling off.
[0006] Preferably, the four side walls of the battery compartment are inwardly recessed first arc-shaped grooves. When the inflatable plate is fully inflated, the four side walls of the first mounting hole are outwardly arched first arc-shaped protrusions. The shape of the first arc-shaped protrusions matches the shape of the first arc-shaped grooves, and the first arc-shaped protrusions can be inserted into the first arc-shaped grooves. Setting the first arc-shaped grooves on the four side walls of the battery compartment facilitates the installation of the battery compartment.
[0007] Preferably, at least two first limiting blocks are fixed to the first side of the bottom surface inside the battery compartment, and at least two second limiting blocks are installed on the second side of the bottom surface inside the battery compartment. The first and second limiting blocks are used to limit the two sides of the battery, and both the first and second limiting blocks are detachably installed on the bottom surface inside the battery compartment. The battery inside the battery compartment is limited by the first and second limiting blocks on both sides to prevent the battery from shaking inside the battery compartment.
[0008] Preferably, the bottom surface of the battery compartment is provided with a plurality of bottom threaded holes for locking the first limiting block and the second limiting block. Both the first and second limiting blocks are provided with limiting block threaded holes, and the plurality of limiting block threaded holes correspond one-to-one with the bottom threaded holes, and are fixed by bolts. The first limiting block, the second limiting block, and the battery compartment are fixed by bolts, making installation convenient and quick.
[0009] Preferably, at least the second limiting block is located directly below the first mounting hole. The battery is first positioned against multiple first limiting blocks on one side. After positioning, multiple second limiting blocks are then fastened, with the second limiting blocks positioned directly below the first mounting hole for easy operation by the operator.
[0010] Preferably, the inflatable plate is provided with a first connecting ring, and the mast is provided with a connecting hole. The first connecting ring and the connecting hole are connected and fixed by a first rope, which can prevent the battery compartment from detaching from the inflatable plate after the inflatable plate has completely leaked air, thus playing a protective role.
[0011] Preferably, the upper surface of the battery compartment has an integrally formed, outwardly extending limiting plate around its perimeter, and the outer diameter of the limiting plate is larger than the diameter of the first mounting hole. The limiting plate can, to a certain extent, hang the battery compartment on the first mounting hole of the inflatable plate.
[0012] Preferably, the battery compartment has a cover plate on top, which is hinged to the top of the battery compartment. A pull ring is provided on the upper surface of the cover plate, and a sealing ring is provided between the cover plate and the battery compartment. The pull ring facilitates opening and closing the cover plate, and the sealing ring prevents water from entering the battery compartment.
[0013] Preferably, the front end of the inflatable plate is provided with a square second mounting hole, through which a square bushing is inserted. A steering handle rod is inserted through the square bushing, and a steering fin is provided at the bottom of the steering handle rod. The steering handle rod and the square bushing are rotatably connected by a bearing assembly. The steering fin facilitates the operator to rotate the steering handle rod, thereby changing the forward direction of the electric hydrofoil; the matching arrangement of the square bushing and the square second mounting hole ensures that the square bushing will not rotate when the steering handle rod is rotated.
[0014] Preferably, the bearing cup assembly includes an upper cup portion and a lower cup portion;
[0015] The steering handrail includes an upper connecting section, a middle connecting section and a lower connecting section. The upper and lower ends of the middle connecting section are respectively provided with external threads, and the external threads are provided with keyways. The lower end of the upper connecting section and the upper end of the lower connecting section are both provided with internal threads that mate with the external threads.
[0016] The lower end of the upper connecting section is threaded to the upper end of the middle connecting section and a keyway is provided. The upper cup is installed on the exposed external thread.
[0017] The upper end of the lower connecting section is threaded to the lower end of the middle connecting section and a keyway is provided. The lower cup is installed on the exposed external thread.
[0018] Preferably, both the upper bowl portion and the lower bowl portion include components arranged sequentially from the end of the connecting section towards the center:
[0019] An emergency nut sleeve, with its threaded sleeve fitted onto the exposed external thread;
[0020] A washer is fitted onto an exposed external thread, and a key is provided on the inner wall of the washer, the key being inserted into a keyway;
[0021] A stop sleeve is provided on the smooth part of the middle connecting section and is interference-fitted.
[0022] The bowl body is fitted onto the outside of the stop sleeve, and a ring of ball bearings is installed between the bowl body and the stop sleeve to achieve relative rotation.
[0023] Preferably, the outer wall of the square bushing has a concave-convex structure that matches the inner wall of the second mounting hole, allowing the square bushing to be embedded in the second mounting hole of the inflatable plate without falling out. The structure is simple. A second connecting ring is provided at the bottom of the inflatable plate, which is connected to the steering armrest via a second rope to prevent the inflatable plate from leaking air and the square bushing from coming out of the second mounting hole, thus also providing protection.
[0024] Preferably, the outer wall of the square bushing is a second arc-shaped groove that is recessed inward. When the inflatable plate is filled with air, the four side walls of the second mounting hole are second arc-shaped protrusions that are arched outward. The shape of the second arc-shaped protrusion matches that of the second arc-shaped groove, and the second arc-shaped protrusion can be inserted into the second arc-shaped groove. Attached Figure Description
[0025] Figure 1 This is a perspective view from the first angle of this embodiment.
[0026] Figure 2 for Figure 1A magnified view of a section at point A in the middle;
[0027] Figure 3 This is a perspective view from the second angle of this embodiment;
[0028] Figure 4 This is a side view of this embodiment;
[0029] Figure 5 for Figure 4 Sectional view at point BB;
[0030] Figure 6 This is a perspective view of the battery compartment in this embodiment;
[0031] Figure 7 This is an exploded view of the battery compartment in this embodiment;
[0032] Figure 8 This is a perspective view of the battery compartment in this embodiment;
[0033] Figure 9 This is a cross-sectional view of the battery compartment in this embodiment;
[0034] Figure 10 for Figure 4 Sectional view at CC;
[0035] Figure 11 This is a perspective view of the steering armrest and the lower cup in this embodiment.
[0036] Figure 12 This is an exploded view of the steering armrest and bearing cup assembly in this embodiment;
[0037] Figure 13 This is an exploded view of the upper bowl portion in this embodiment.
[0038] In the diagram: 1. Inflatable panel; 2. Hydrofoil; 3. Propeller; 4. First mounting hole; 4a. First arc-shaped protrusion; 5. Battery compartment; 5a. First arc-shaped groove; 5b. Limiting plate; 6. Mast; 7. Second limiting block; 8. Cover plate; 9. Hinge; 10. Pull ring; 11. Second mounting hole; 11a. Second arc-shaped protrusion; 12. Square bushing; 12a. Second arc-shaped groove; 13. Steering handrail; 13a. 13b. Upper connecting section; 13c. Middle connecting section; 13d. Lower connecting section; 13d. External thread; 13e. Keyway; 14. Steering fin; 15. Bearing cup assembly; 15a. Upper cup; 15b. Lower cup; 15-1. Clamping nut sleeve; 15-3. Washer; 15-4. Key; 15-5. Stop sleeve; 15-6. Cup body; 16. Second connecting ring; 17. Battery; 18. First limiting block; 19. First connecting ring. Detailed Implementation
[0039] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0040] See Figures 1 to 13 As shown, this embodiment discloses an electric hydrofoil assembly, including an inflatable plate body 1, a hydrofoil 2, and a propeller 3. The inflatable plate body 1 is made of PVC mesh fabric. The rear half of the inflatable plate body 1 has a first mounting hole 4, in which a battery compartment 5 is installed. The battery compartment 5 supplies power to the propeller 3. The side wall of the battery compartment 5 has a concave-convex shape that matches the side wall of the first mounting hole 4. When the inflatable plate body 1 is fully inflated, the concave-convex design secures the battery compartment 5, preventing it from falling out. A mast 6 is provided at the bottom of the battery compartment 5, and the hydrofoil 2 is installed at the bottom of the mast 6. The propeller 3 is installed on the mast 6. In this embodiment, the battery compartment 5 can be adapted to inflatable plate bodies 1 from various manufacturers.
[0041] The side wall of the battery compartment 5 has a concave-convex structure that mates with the side wall of the first mounting hole 4, and can be configured as follows:
[0042] In this embodiment, the four side walls of the battery compartment 5 are inwardly recessed first arc-shaped grooves 5a. When the inflation plate 1 is fully inflated, the four side walls of the first mounting hole 4 are outwardly arched first arc-shaped protrusions 4a. The shapes of the first arc-shaped protrusions 4a match those of the first arc-shaped grooves 5a, and the first arc-shaped protrusions 4a can be inserted into the first arc-shaped grooves 5a. The first arc-shaped grooves 5a are provided on the four side walls of the battery compartment 5.
[0043] In this embodiment, the battery 17 is fixed in position within the battery compartment 5. At least two first limiting blocks 18 are fixed to the first side of the bottom surface of the battery compartment 5, and at least two second limiting blocks 7 are installed on the second side of the bottom surface of the battery compartment 5. The first limiting blocks 18 and the second limiting blocks 7 are used to limit the two sides of the battery 17. Both the first limiting blocks 18 and the second limiting blocks 7 are detachably mounted on the bottom surface of the battery compartment 5. In this embodiment, the battery 17 within the battery compartment 5 is limited by the first limiting blocks 18 and the second limiting blocks 7 on both sides.
[0044] To facilitate the maintenance of battery 17, at least one of the limiting blocks is detachable, and in this embodiment, both the first limiting block 18 and the second limiting block 7 are configured to be detachably connected.
[0045] Specifically, the bottom surface of the battery compartment 5 is provided with multiple bottom threaded holes for locking the first limiting block 18 and the second limiting block 7. Both the first limiting block 18 and the second limiting block 7 are provided with limiting block threaded holes. The multiple limiting block threaded holes correspond one-to-one with the bottom threaded holes and are fixed by bolts.
[0046] To facilitate disassembly, at least the second limiting block 7 in this embodiment is located directly below the first mounting hole 4. When installing the battery 17, the first limiting block 18 is fixed first, and the battery 17 is positioned against multiple first limiting blocks 18 on one side. After positioning, multiple second limiting blocks 7 are locked and positioned directly below the first mounting hole 4.
[0047] In this embodiment, the inflatable board 1 is made of PVC mesh wire material. The characteristic of this material is that when it encounters a sharp object, the wound will not spread, but will only slowly deflate. It will not completely leak air in a short time, causing the inflatable board to lose its support. Even if the electric hydrofoil leaks air, there is generally enough time to drive to the shore for repair.
[0048] In extreme cases where the inflatable plate 1 leaks air severely, in order to prevent the battery compartment 5 from detaching from the inflatable plate 1, the inflatable plate 1 in this embodiment is provided with a first connecting ring 19, and the mast 6 is provided with a connecting hole. The first connecting ring 19 and the connecting hole are connected and fixed by a first rope to play a protective role.
[0049] The mast 6 is hollow inside to allow wires to pass through. In this embodiment, the connection hole can be formed by an inward recess on the side wall of the mast 6 to create a connection ring, or an external connection ring can be integrally formed on the side wall of the mast 6. It is necessary to ensure that the setting of the connection hole does not damage the sealing of the mast 6, otherwise water will enter the mast 6.
[0050] In this embodiment, the upper surface of the battery compartment 5 has an integrally formed and outwardly extending limiting plate 5b around its perimeter. The outer diameter of the limiting plate 5b is larger than the diameter of the first mounting hole 4. The limiting plate 5b hangs the battery compartment 5 on the first mounting hole 4.
[0051] In this embodiment, the battery compartment 5 has a cover plate 8 on top. The cover plate 8 is mounted on the top of the battery compartment 5 via a hinge 9. A pull ring 10 is provided on the upper surface of the cover plate 8, and a sealing ring is provided between the cover plate 8 and the battery compartment 5. The pull ring 10 facilitates opening and closing the cover plate 8, and the sealing ring prevents water from entering the battery compartment 5.
[0052] In addition, a square second mounting hole 11 is provided at the front end of the inflatable plate body 1. A square bushing 12 is provided through the second mounting hole 11, and a steering handle 13 is provided through the square bushing 12. A steering fin 14 is provided at the bottom of the steering handle 13. The steering handle 13 and the square bushing 12 are rotatably connected by a bearing cup assembly 15. The steering fin 14 makes it convenient for the operator to rotate the steering handle 13, thereby changing the forward direction of the electric hydrofoil.
[0053] like Figures 11 to 13 As shown, the bearing cup assembly 15 in this embodiment includes an upper cup portion 15a and a lower cup portion 15b;
[0054] The steering handrail 13 includes an upper connecting section 13a, a middle connecting section 13b and a lower connecting section 13c. The upper and lower ends of the middle connecting section 13b are respectively provided with external threads 13d, and the external threads 13d are provided with keyways 13e. The lower end of the upper connecting section 13a and the upper end of the lower connecting section 13c are both provided with internal threads 13f that mate with the external threads 13d.
[0055] The lower end of the upper connecting section 13a is threaded to the upper end of the middle connecting section 13b and a keyway 13e is provided. The upper cup part 15a is installed on the exposed external thread 13d.
[0056] The upper end of the lower connecting section 13c is threaded to the lower end of the middle connecting section 13b and leaves a keyway 13e. The lower cup part 15b is installed on the exposed external thread 13d.
[0057] In this embodiment, both the upper bowl portion 15a and the lower bowl portion 15b include components arranged sequentially from the end of the connecting section 13b toward the center:
[0058] The tight nut sleeve 15-1 is threaded onto the exposed external thread 13d;
[0059] Washer 15-3 is fitted onto the exposed external thread 13d. A key 15-4 is provided on the inner wall of washer 15-3, and key 15-4 is inserted into keyway 13e.
[0060] The stop sleeve 15-5 is provided on the smooth part of the middle connecting section 13b and is interference fit.
[0061] The bowl body 15-6 is fitted over the outside of the stop sleeve 15-5. A ring of ball bearings 15-2 is installed between the bowl body 15-6 and the stop sleeve 15-5 to enable relative rotation.
[0062] Similarly, in this embodiment, the outer side wall of the square bushing 12 adopts a concave-convex structure to cooperate with the inner side wall of the second mounting hole 11, so that the square bushing 12 can be embedded in the second mounting hole 11 to realize the installation and fixation of the square bushing 12. Also, since the inflatable plate 1 is made of PVC mesh wire material, even if it is punctured by a sharp object, the wound will not spread, and there is enough time to drive to the shore for repair.
[0063] To further prevent the square bushing 12 from detaching from the inflatable plate 1 in extreme cases (when the inflatable plate 1 is completely leaking air), a second connecting ring 20 is provided at the bottom of the inflatable plate 1 in this embodiment. The second connecting ring 20 is connected to the steering handrail 13 by a second rope. Specifically, one end of the second rope is tied to the second connecting ring 20, and the other end of the second rope is wrapped around the steering handrail 13 several times and tied in a knot to fix it, thereby realizing the connection between the second connecting ring 20 and the steering handrail 13, so as to prevent the square bushing 12 from detaching from the second mounting hole 11 in extreme cases.
[0064] More specifically: the outer wall of the square bushing 12 is a second arc-shaped groove 12a that is recessed inward. When the inflatable plate 1 is filled with air, the four side walls of the second mounting hole 11 are second arc-shaped protrusions 11a that are arched outward. The shape of the second arc-shaped protrusions 11a matches that of the second arc-shaped groove 12a, and the second arc-shaped protrusions 11a can be inserted into the second arc-shaped groove 12a.
[0065] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.
Claims
1. An electric hydrofoil assembly, comprising an inflatable plate body (1), a hydrofoil (2), and a propeller (3), wherein the inflatable plate body (1) is made of PVC mesh wire drawing material, and the rear half of the inflatable plate body (1) has a first mounting hole (4), in which a battery compartment (5) is installed, the battery compartment (5) being used to supply power to the propeller (3), characterized in that: The side wall of the battery compartment (5) is convex and concave to match the side wall of the first mounting hole (4). A mast (6) is provided at the bottom of the battery compartment (5). A hydrofoil (2) is installed at the bottom of the mast (6). The propeller (3) is installed on the mast (6).
2. The electric hydrofoil assembly according to claim 1, characterized in that: The four side walls of the battery compartment (5) are first arc-shaped grooves (5a) that are recessed inward. When the inflatable plate (1) is filled with air, the four side walls of the first mounting hole (4) are first arc-shaped protrusions (4a) that are arched outward. The first arc-shaped protrusions (4a) match the shape of the first arc-shaped grooves (5a) and can be inserted into the first arc-shaped grooves (5a).
3. The electric hydrofoil assembly according to claim 1, characterized in that: At least two first limiting blocks (18) are fixed on the first side of the bottom surface inside the battery compartment (5), and at least two second limiting blocks (7) are installed on the second side of the bottom surface inside the battery compartment (5). The first limiting blocks (18) and the second limiting blocks (7) are used to limit the two sides of the battery (17). The first limiting blocks (18) and the second limiting blocks (7) can be detachably installed on the bottom surface inside the battery compartment (5).
4. The electric hydrofoil assembly according to claim 3, characterized in that: The bottom surface of the battery compartment (5) is provided with a plurality of bottom threaded holes for locking the first limiting block (18) and the second limiting block (7). The first limiting block (18) and the second limiting block (7) are provided with limiting block threaded holes. The plurality of limiting block threaded holes correspond one-to-one with the bottom threaded holes and are fixed by bolts. At least the second limiting block (7) is located directly below the first mounting hole (4).
5. The electric hydrofoil assembly according to claim 1, characterized in that: The inflatable plate (1) is provided with a first connecting ring (19), and the mast (6) is provided with a connecting hole. The first connecting ring (19) and the connecting hole are connected and fixed by a first rope.
6. The electric hydrofoil assembly according to claim 1, characterized in that: The upper surface of the battery compartment (5) has an integrally formed and outwardly extending limiting plate (5b) around its perimeter, and the outer diameter of the limiting plate (5b) is larger than the diameter of the first mounting hole (4).
7. The electric hydrofoil assembly according to claim 1, characterized in that: The battery compartment (5) has a cover plate (8) on top. The cover plate (8) is mounted on the top of the battery compartment (5) by a hinge (9). A pull ring (10) is provided on the upper surface of the cover plate (8). A sealing ring is provided between the cover plate (8) and the battery compartment (5).
8. The electric hydrofoil assembly according to claim 1, characterized in that: The front end of the inflatable plate (1) is provided with a square second mounting hole (11), through which a square bushing (12) is provided. A steering arm (13) is provided inside the square bushing (12), and a steering fin (14) is provided at the bottom of the steering arm (13). The steering arm (13) and the square bushing (12) are rotatably connected by a bearing cup assembly (15).
9. The electric hydrofoil assembly according to claim 8, characterized in that: The bearing cup assembly (15) includes an upper cup (15a) and a lower cup (15b). The steering armrest (13) includes an upper connecting section (13a), a middle connecting section (13b) and a lower connecting section (13c). The upper and lower ends of the middle connecting section (13b) are respectively provided with external threads (13d). The external threads (13d) are provided with keyways (13e). The lower end of the upper connecting section (13a) and the upper end of the lower connecting section (13c) are both provided with internal threads (13f) that mate with the external threads (13d). The lower end of the upper connecting section (13a) is threaded to the upper end of the middle connecting section (13b) and a keyway (13e) is provided. The upper bowl (15a) is installed on the exposed external thread (13d). The upper end of the lower connecting section (13c) is threaded to the lower end of the middle connecting section (13b) and a keyway (13e) is provided. The lower bowl (15b) is installed on the exposed external thread (13d).
10. The electric hydrofoil assembly according to claim 9, characterized in that: Both the upper bowl portion (15a) and the lower bowl portion (15b) include the following components arranged sequentially from the end of the connecting section (13b) towards the center: The tight nut sleeve (15-1) is threaded onto the exposed external thread (13d); A washer (15-3) is fitted onto the exposed external thread (13d), and a key (15-4) is provided on the inner wall of the washer (15-3), the key (15-4) being inserted into the keyway (13e); A stop sleeve (15-5) is provided on the smooth part of the middle connecting section (13b) and is interference-fitted. The bowl body (15-6) is fitted over the outside of the stop sleeve (15-5), and a ring of ball bearings (15-2) is installed between the bowl body (15-6) and the stop sleeve (15-5) to achieve relative rotation.
11. The electric hydrofoil assembly according to claim 8, characterized in that: The outer side wall of the square bushing (12) adopts a concave-convex structure to cooperate with the inner side wall of the second mounting hole (11). The bottom of the inflatable plate (1) is provided with a second connecting ring (16), and the second connecting ring (16) is connected to the steering handrail (13) through a second rope.
12. The electric hydrofoil assembly according to claim 11, characterized in that: The outer wall of the square bushing (12) is a second arc-shaped groove (12a) that is recessed inward. When the inflatable plate (1) is filled with air, the four side walls of the second mounting hole (11) are second arc-shaped protrusions (11a) that are arched outward. The shape of the second arc-shaped protrusion (11a) matches that of the second arc-shaped groove (12a), and the second arc-shaped protrusion (11a) can be inserted into the second arc-shaped groove (12a).
