A trimaran recreational hydrofoil

Abstract

The present application relates to the field of yacht technology, especially to a three-body leisure hydrofoil boat, comprising a hull, a roof, a tail wing, a roof driving element and a tail wing driving element, wherein the roof is arranged on the top of the hull; the roof driving element is connected with the roof and the hull respectively, and is used to drive the roof to move backward along the hull longitudinally, so that at least part of the roof moves behind the stern; the tail wing is arranged on the tail of the hull; the tail wing driving element is connected with the tail wing and the hull respectively, and is used to drive the tail wing to rotate and unfold downward relative to the stern, so that the tail wing is at least partially supported on the bottom of the roof, and together forms a hydrophilic platform on the outside or the back of the stern; the present application proposes a three-body leisure hydrofoil boat, aiming at solving the technical problems of the single function of the roof of the existing three-body leisure hydrofoil boat and the extra occupation of the deck space of the hull tail by the hydrophilic platform.

Description

Technical Field

[0001] This invention relates to the field of yacht technology, and more particularly to a trimaran recreational hydrofoil. Background Technology

[0002] Trimaraner recreational hydrofoils, as a typical yacht structure, have gradually become a research hotspot in the field of recreational yachts due to their advantages such as good sailing stability, ample deck space, and the ability of hydrofoils to lift the hull and significantly reduce sailing resistance at high speeds. For example, invention application CN104943816A discloses a modular trimaran.

[0003] The canopies of existing trimaran recreational hydrofoils typically serve only as sunshades and rain shelters, with a single function. Their structure is fixed above the passenger cabin and cannot be adjusted in position or converted in function according to usage scenarios. To meet the needs of water activities such as fishing and diving, it is usually necessary to install an independent water access platform or swimming platform on the stern deck. Such platforms occupy the deck space at the stern of the hull, resulting in an increase in hull length and displacement. Summary of the Invention

[0004] In view of this, the present invention proposes a trimaran leisure hydrofoil, which aims to solve the technical problems of existing trimaran leisure hydrofoils having a single roof function and requiring the water-friendly platform to occupy additional deck space at the stern of the hull.

[0005] The technical solution of this invention is implemented as follows: This invention provides a trimaran recreational hydrofoil, comprising a hull, a canopy, a tail fin, a canopy drive component, and a tail fin drive component, wherein... The canopy is located on the top of the hull; The canopy drive unit is connected to the canopy and the hull respectively, and is used to drive the canopy to move longitudinally rearward along the hull so that at least a portion of the canopy moves to the rear of the stern. The tail fin is located at the stern of the hull; The tail fin drive unit is connected to the tail fin and the hull respectively, and is used to drive the tail fin to rotate and unfold relative to the stern, so that the tail fin is at least partially supported on the bottom of the canopy, together forming a hydrophilic platform located on the outer or rear side of the stern.

[0006] Based on the above technical solutions, preferably, a track wheel is provided on the rear side of the top of the hull, and a track groove is provided at the bottom of the canopy along the longitudinal direction of the hull. The track groove is arranged longitudinally along the hull; The track wheel and the track groove are slidably fitted together.

[0007] Based on the above technical solutions, preferably, the ceiling drive component includes a first telescopic rod and a second telescopic rod, wherein... The lower end of the first telescopic rod is hinged to the side of the hull, and the upper end is hinged to the side of the roof; The rear end of the second telescopic rod is hinged to the front side of the first telescopic rod, and the front end is hinged to the side of the hull.

[0008] Based on the above technical solutions, preferably, a first support member is provided at the stern of the hull, and a second support member is hinged to the rear end of the first support member, wherein... The tail fin side is hinged to the upper end of the second support member.

[0009] Based on the above technical solutions, preferably, the tail wing drive component includes a third telescopic rod, wherein, The front end of the third telescopic rod is hinged to the stern end of the hull, and the rear end is hinged to the front end of the tail fin.

[0010] Based on the above technical solutions, preferably, a linkage locking structure is provided between the canopy and the tail fin, the linkage locking structure including a male head and a female head, wherein, The male head is located at the bottom of the canopy; The tail fin has a slanted groove at its top, and the female head is located in the slanted groove; In the hydrophilic platform state, the male head and the female head are locked together.

[0011] Based on the above technical solutions, preferably, the female head includes an outer sleeve, a sliding block, and a locking arm, wherein, The outer sleeve is disposed in the inclined groove; The sliding block is elastically and retractably disposed within the outer sleeve; The middle part of the locking arm is hinged to the front end of the outer tube through a hinge support to form a lever structure. One end of the lever structure is hinged to the sliding block, and the other end is provided with a locking part. The locking part is used to lock with the male end when locked.

[0012] Based on the above technical solutions, preferably, the male head side is provided with a groove, and a pin is retractably provided inside the groove, wherein... In the hydrophilic platform state, the male head abuts against the sliding block, and the locking part is engaged in the groove, with the pin inserted into the locking part.

[0013] Based on the above technical solutions, preferably, the pin is an electric guide rod telescopic pin, which is embedded in the groove wall of the groove.

[0014] Based on the above technical solutions, preferably, the male end is provided with a countersunk hole, wherein... The pin is elastically and retractably disposed in the countersunk hole; The countersunk hole has a side hole on its side, and a limiting rod passes through the side hole; One end of the limiting rod is fixedly connected to the side of the pin, and the other end is limited by the hinge support to restrict the extension and retraction of the pin.

[0015] The trimaran recreational hydrofoil of the present invention has the following advantages over the prior art: (1) By setting the roof drive component to drive the roof to move longitudinally backward along the hull, and cooperating with the tail wing drive component to drive the tail wing to rotate backward and downward to support the bottom of the roof, the roof and tail wing together form a waterfront platform located on the outer or rear side of the stern, realizing the integration and conversion of the roof's sunshade function and the waterfront platform's leisure function. There is no need to set up an independent waterfront platform or swimming platform on the stern deck, avoiding the increase in hull length and displacement, effectively saving hull space, which is conducive to the miniaturization and lightweight design of the yacht, while enriching the roof's usage scenarios and improving the yacht's space utilization and leisure function integration.

[0016] (2) By setting a linkage locking structure consisting of a male head and a female head between the roof and the tail fin, the male head and the female head are locked together in the hydrophilic platform state, so that the roof and the tail fin are reliably fixed in the hydrophilic platform state, effectively preventing relative displacement between the roof and the tail fin during use, and significantly improving the structural stability and safety of the hydrophilic platform.

[0017] (3) A sliding block is set inside the outer tube, and the locking arm is hinged to the front end of the outer tube to form a lever structure. One end of the lever structure is hinged to the sliding block, and the other end is provided with a locking part. When the male head is inserted into the female head, the male head pushes the sliding block to slide backward, and the locking part is rotated through the lever structure, thereby realizing the automatic locking of the male head. It has good linkage response characteristics, and the structure is compact and the locking is reliable.

[0018] (4) By setting a groove and a retractable pin on the side of the male head, the locking part is engaged in the groove in the hydrophilic platform state, and the pin is inserted into the locking part, so as to realize the mechanical engagement of the locking part and the groove and the insertion limit of the pin and the locking part, forming a double locking mechanism, which effectively prevents the locking part from accidentally coming out of the groove.

[0019] (5) By setting a countersunk hole on the male end and opening a side hole on the side of the countersunk hole to pass through the limiting rod, one end of the limiting rod is fixedly connected to the pin and the other end is limited to the hinge support. When the male end contacts the sliding block, the limiting rod contacts the hinge support. When the male end continues to move backward, the hinge support forces the limiting rod to move forward relative to the male end, thereby driving the front end of the pin to extend out of the countersunk hole and automatically insert into the locking part. This realizes the mechanical automation action of the pin extending out in conjunction with the movement of the male end. No additional drive source is required. The structure is simple and the response is reliable. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of a trimaran recreational hydrofoil according to the present invention; Figure 2 This is a perspective view of a trimaran recreational hydrofoil according to the present invention. Figure 3 This is a structural diagram of the hydrophilic platform. Figure 4 for Figure 1 Enlarged view of point A; Figure 5 for Figure 2 A partial structural diagram; Figure 6 A schematic diagram of the locking state of the linkage locking structure; Figure 7 A schematic diagram of the locking state of the linkage locking structure from another perspective; Figure 8 This is a schematic diagram of the internal structure of the interlocking locking structure in the locked state. In the diagram: 1. Hull; 2. Roof; 3. Tail fin; 4. Roof drive unit; 5. Tail fin drive unit; 6. Linkage locking structure; 11. Rail wheel; 12. First support member; 13. Second support member; 21. Track groove; 41. First telescopic rod; 42. Second telescopic rod; 51. Third telescopic rod; 61. Male head; 62. Female head; 101. Hydrophilic platform; 301. Opening; 302. Inclined groove; 611. Pin; 612. Limiting rod; 621. Outer sleeve; 622. Sliding block; 623. Locking arm; 624. Hinge support; 6101. Groove; 6102. Countersunk hole; 6103. Side hole; 6231. Locking part. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0023] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Additionally, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0028] like Figures 1-8 As shown, a trimaran recreational hydrofoil of the present invention includes a hull 1, a canopy 2, a tail fin 3, a canopy drive component 4, and a tail fin drive component 5.

[0029] The hull 1 is a trimaran structure. A canopy 2 is located on top of the hull 1, providing sun and rain protection for the passenger cabin area. A tail fin 3 is located at the stern of the hull 1, used to reduce drag during high-speed navigation. A canopy drive unit 4 is connected to both the canopy 2 and the hull 1, driving the canopy 2 to move longitudinally rearward along the hull 1, so that at least a portion of the canopy 2 moves to the rear of the stern. A tail fin drive unit 5 is connected to both the tail fin 3 and the hull 1, driving the tail fin 3 to rotate and unfold rearward and downward relative to the stern, so that at least a portion of the tail fin 3 is supported on the bottom of the canopy 2, together forming a waterfront platform 101 located on the outer or rear side of the stern.

[0030] With the above structure, the canopy 2 can slide longitudinally backward from above the passenger cabin of the hull 1 to the rear of the stern under the drive of the canopy drive component 4. At the same time, the tail fin 3 rotates and unfolds backward and downward under the drive of the tail fin drive component 5, forming a bottom support for the canopy 2. Together, they constitute the hydrophilic platform 101. Figure 3 As shown, this structure integrates the sunshade function of the canopy 2 with the leisure function of the waterfront platform, eliminating the need for an additional independent waterfront platform or swimming platform structure on the stern deck. This avoids increasing the length and displacement of the yacht, effectively saving space on board, and is conducive to the miniaturization and lightweight design of the yacht. At the same time, it enriches the usage scenarios of the canopy 2 and improves the space utilization and leisure function integration of the yacht.

[0031] In the above structure, a track wheel 11 is provided on the rear top side of the hull 1, and a track groove 21 is provided on the bottom of the canopy 2 along the longitudinal direction of the hull 1. The track groove 21 is arranged longitudinally through the hull 1, and the track wheel 11 and the track groove 21 are slidably engaged. By setting the sliding engagement structure between the track wheel 11 and the track groove 21, a stable guiding effect is provided for the longitudinal sliding of the canopy 2, ensuring that the canopy 2 runs smoothly and accurately during movement, and improving the reliability and ease of operation of the canopy 2 position switching.

[0032] The canopy drive component 4 includes a first telescopic rod 41 and a second telescopic rod 42. The lower end of the first telescopic rod 41 is hinged to the side of the hull 1, and the upper end is hinged to the side of the canopy 2. The rear end of the second telescopic rod 42 is hinged to the front side of the first telescopic rod 41, and the front end is hinged to the side of the hull 1. The first telescopic rod 41 serves as the main drive rod; its extension and retraction movement causes the canopy 2 to move longitudinally. Simultaneously, in conjunction with the sliding engagement of the track wheel 11 and the track groove 21, it can adjust the tilt angle of the canopy 2, further enriching its usage scenarios. The second telescopic rod 42 serves as an auxiliary support rod, forming a stable multi-link drive mechanism together with the first telescopic rod 41 and the side of the hull 1. When it is necessary to switch the canopy 2 from a sunshade state to a waterfront platform 101 state, the first telescopic rod 41 and the second telescopic rod 42 work together to adjust the movement posture of the canopy 2. This multi-link drive mechanism provides reliable support and driving force for the longitudinal movement and position maintenance of the canopy 2, enhancing the structural stability of the canopy 2 in both sunshade and platform states.

[0033] A first support member 12 is provided at the stern of the hull 1, and a second support member 13 is hinged to the rear end of the first support member 12. The side of the tail fin 3 is hinged to the upper end of the second support member 13. The first support member 12 is fixed to the stern of the hull 1, serving as the basic support for the installation of the tail fin 3. One end of the second support member 13 is hinged to the first support member 12, and the other end is hinged to the side of the tail fin 3, giving the tail fin 3 a degree of freedom of rotation relative to the hull 1. When the canopy 2 is in a sunshade state, the second support member 13 vertically supports the tail fin 3. When the tail fin drive member 5 drives the tail fin 3, the second support member 13 rotates synchronously with the tail fin 3, providing stable support and constraint, preventing the tail fin 3 from swaying or shaking during deployment or retraction. This multi-link support structure provides a stable installation base for the tail fin 3, enabling the tail fin 3 to be reliably supported at the bottom of the canopy 2 after rotation and deployment, improving the load-bearing capacity and structural safety of the hydrophilic platform 101.

[0034] The tail fin drive component 5 includes a third telescopic rod 51, the front end of which is hinged to the stern of the hull 1, and the rear end of which is hinged to the front end of the tail fin 3. Specifically, the front end of the third telescopic rod 51 is hinged to the stern of the hull 1, and the rear end is hinged to the front end of the tail fin 3. When the third telescopic rod 51 extends, it pushes the tail fin 3 to rotate and unfold rearward and downward around the hinge point; when the third telescopic rod 51 retracts, it pulls the tail fin 3 upward and retracts to the sailing position. This drive method achieves the rearward and downward rotation and unfolding of the tail fin 3 relative to the stern with a simple structure, and has high drive efficiency and fast response speed, making it convenient for users to quickly complete the switching operation of the hydrophilic platform 101.

[0035] Furthermore, the tail wing 3 has an opening 301 at its front end, and the rear end of the third telescopic rod 51 is hinged to the inside of the opening 301, so that the connection point between the third telescopic rod 51 and the tail wing 3 is embedded inside the tail wing 3. This optimizes the structural layout, avoids interference between the third telescopic rod 51 and the surface of the tail wing 3, and improves the compactness and aesthetics of the overall structure.

[0036] In the above structure, each telescopic rod is any one or more combinations of a pneumatic cylinder, an electric telescopic rod, and a hydraulic cylinder.

[0037] Based on the above structure, a linkage locking structure 6 is provided between the canopy 2 and the tail fin 3. The linkage locking structure 6 includes a male connector 61 and a female connector 62. The male connector 61 is located at the bottom of the canopy 2, and the top of the tail fin 3 has a sloping groove 302, within which the female connector 62 is located. In the hydrophilic platform 101 state, the male connector 61 and the female connector 62 are locked together. Through the locking engagement of the male connector 61 and the female connector 62, the canopy 2 and the tail fin 3 are reliably fixed in the hydrophilic platform 101 state, effectively preventing relative displacement between the canopy 2 and the tail fin 3 during use, and significantly improving the structural stability and safety of the hydrophilic platform 101. The design of the sloping groove 302 provides guidance for the male connector 61 as it moves obliquely into the female connector 62 with the canopy 2, making the docking process smoother and avoiding motion interference.

[0038] In this structure, the female connector 62 includes an outer tube 621, a sliding block 622, and a locking arm 623. The outer tube 621 is disposed in the inclined groove 302. The sliding block 622 is elastically and telescopically disposed in the outer tube 621. The middle part of the locking arm 623 is hinged to the front end of the outer tube 621 via a hinge support 624 to form a lever structure. One end of the lever structure is hinged to the sliding block 622, and the other end is provided with a locking part 6231. The locking part 6231 is used to lock with the male connector 61 when locked. When the male connector 61 moves backward with the canopy 2 into the female connector 62, the male connector 61 first contacts and pushes the sliding block 622 to slide backward within the outer tube 621. When the sliding block 622 moves backward, it drives one end of the latching arm 623, which is hinged to it, to move backward. Since the middle part of the latching arm 623 is hinged to the front end of the outer sleeve 621 through the hinge support 624, the latching arm 623 rotates around the hinge support 624, and its other end, the latching part 6231, rotates towards the male head 61, thereby engaging the corresponding position of the male head 61 and achieving automatic locking. This locking process has good linkage response characteristics. The insertion action of the male head 61 directly drives the sequential action of the sliding block 622 and the latching arm 623, without the need for additional operation steps, and the structure is compact and the locking is reliable. When unlocking is required, simply reverse the operation to reset the sliding block 622 under the action of the elastic element, and the latching arm 623 rotates in the opposite direction to release the lock.

[0039] The locking part 6231 is annular, and the male end 61 has a groove 6101 on its side. A pin 611 is retractably provided inside the groove 6101. In the state of the hydrophilic platform 101, the male end 61 abuts against the sliding block 622, and the locking part 6231 is engaged in the groove 6101, with the pin 611 inserted into the locking part 6231. In the state of the hydrophilic platform 101, the locking part 6231 engaged in the groove 6101, achieving initial mechanical engagement between the locking arm 623 and the male end 61. Based on this, the pin 611 extends from the inside of the groove 6101 and inserts into the locking part 6231, forming a further insertion limit. This double locking mechanism effectively prevents the locking part 6231 from accidentally dislodging from the groove 6101, further improving the robustness and impact resistance of the locking structure, ensuring the hydrophilic platform 101 remains stable and reliable when bearing personnel loads.

[0040] The aforementioned elastic element is a compression spring, located inside the outer sleeve 621. When the male connector 61 drives the sliding block 622 to slide into the outer sleeve 621, the compression spring is compressed. When the male connector 61 is removed, the compression spring rebounds, driving the sliding block 622 to slide back to its original position.

[0041] The aforementioned pin 611 can be any type of electric guide rod telescopic pin in the prior art, which is embedded in the groove wall of the groove 6101. Electric control enables precise driving of the extension and retraction of the pin 611, facilitating remote locking and unlocking during the switching operation of the hydrophilic platform 101, thus improving automation and ease of use.

[0042] In addition, the aforementioned pin 611 can also adopt a mechanical linkage structure. Specifically, the male end 61 is provided with a countersunk hole 6102, and the pin 611 is elastically and telescopically disposed in the countersunk hole 6102. A side hole 6103 is provided on the side of the countersunk hole 6102, and a limiting rod 612 passes through the side hole 6103. One end of the limiting rod 612 is fixedly connected to the side of the pin 611, and the other end is limited in fit with the hinge support 624 to limit the extension and retraction stroke of the pin 611. In this structure, the pin 611 is disposed in the countersunk hole 6102 and can slide out or retract in the countersunk hole 6102. One end of the limiting rod 612 is fixedly connected to the side of the pin 611, and the other end extends outward through the side hole 6103.

[0043] During the docking process between the male connector 61 and the female connector 62, the male connector 61 first contacts the sliding block 622, at which point the outwardly extending end of the limiting rod 612 contacts the hinge support 624. As the male connector 61 continues to move backward, the hinge support 624 moves forward relative to the male connector 61, pushing against the limiting rod 612, causing the limiting rod 612 to move forward relative to the male connector 61. This, in turn, drives the front end of the pin 611 to extend from the countersunk hole 6102 and automatically insert into the locking part 6231. This structure achieves a mechanically automated action in which the pin 611 extends in conjunction with the movement of the male connector 61, requiring no additional drive source, and is simple in structure and reliable in response. When the male connector 61 disengages from the female connector 62, the pin 611 automatically retracts into the countersunk hole 6102 under the action of the elastic element, completing the unlocking process.

[0044] The aforementioned elastic element is a tension spring, which is disposed in the countersunk hole 6102. When the hinge support 624 drives the pin 611 to move, the tension spring is stretched. When the hinge support 624 separates from the pin 611, the tension spring retracts, driving the pin 611 to slide back to its original position.

[0045] 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, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A trimaran recreational hydrofoil, characterized in that: Includes hull (1), roof (2), tail fin (3), roof drive component (4), and tail fin drive component (5), among which, The canopy (2) is located on top of the hull (1); The canopy drive unit (4) is connected to the canopy (2) and the hull (1) respectively, and is used to drive the canopy (2) to move longitudinally backward along the hull (1) so that at least part of the canopy (2) moves to the rear of the stern; The tail fin (3) is located at the stern of the hull (1); The tail wing drive component (5) is connected to the tail wing (3) and the hull (1) respectively, and is used to drive the tail wing (3) to rotate and unfold relative to the stern so that the tail wing (3) is at least partially supported on the bottom of the canopy (2) and together they form a hydrophilic platform (101) located on the outer or rear side of the stern.

2. The trimaran recreational hydrofoil as described in claim 1, characterized in that: The hull (1) has a rail wheel (11) on the rear top side, and the bottom of the canopy (2) has a rail groove (21) along the longitudinal direction of the hull (1). The track groove (21) is longitudinally arranged along the hull (1); The track wheel (11) and the track groove (21) are slidably engaged.

3. A trimaran recreational hydrofoil as described in claim 1, characterized in that: The canopy drive component (4) includes a first telescopic rod (41) and a second telescopic rod (42), wherein, The lower end of the first telescopic rod (41) is hinged to the side of the hull (1), and the upper end is hinged to the side of the roof (2); The rear end of the second telescopic rod (42) is hinged to the front side of the first telescopic rod (41), and the front end is hinged to the side of the hull (1).

4. A trimaran recreational hydrofoil as described in claim 1, characterized in that: The hull (1) is provided with a first support member (12) at the stern, and a second support member (13) is hinged to the rear end of the first support member (12). The side of the tail fin (3) is hinged to the upper end of the second support member (13).

5. A trimaran recreational hydrofoil as described in claim 1, characterized in that: The tail fin drive component (5) includes a third telescopic rod (51), wherein, The front end of the third telescopic rod (51) is hinged to the stern end of the hull (1), and the rear end is hinged to the front end of the tail fin (3).

6. A trimaran recreational hydrofoil as described in claim 1, characterized in that: A linkage locking structure (6) is provided between the canopy (2) and the tail fin (3). The linkage locking structure (6) includes a male head (61) and a female head (62). The male head (61) is located at the bottom of the canopy (2); The tail fin (3) has a sloping groove (302) at the top, and the female head (62) is located in the sloping groove (302); In the state of the hydrophilic platform (101), the male head (61) and the female head (62) are locked together.

7. A trimaran recreational hydrofoil as described in claim 6, characterized in that: The female head (62) includes an outer tube (621), a sliding block (622), and a locking arm (623), wherein, The outer sleeve (621) is disposed in the inclined groove (302); The sliding block (622) is elastically and telescopically disposed in the outer sleeve (621); The middle part of the locking arm (623) is hinged to the front end of the outer tube (621) through the hinge support (624) to form a lever structure. One end of the lever structure is hinged to the sliding block (622), and the other end is provided with a locking part (6231). The locking part (6231) is used to lock with the male head (61) when locked.

8. A trimaran recreational hydrofoil as described in claim 7, characterized in that: The male head (61) has a groove (6101) on its side, and a pin (611) is retractably provided inside the groove (6101). In the state of the hydrophilic platform (101), the male head (61) abuts against the sliding block (622), and the locking part (6231) is engaged in the groove (6101), and the pin (611) is inserted into the locking part (6231).

9. A trimaran recreational hydrofoil as described in claim 8, characterized in that: The pin (611) is an electric guide rod telescopic pin, which is embedded in the groove wall of the groove (6101).

10. A trimaran recreational hydrofoil as described in claim 8, characterized in that: The male head (61) is provided with a countersunk hole (6102), wherein, The pin (611) is elastically and retractably disposed in the countersunk hole (6102); The countersunk hole (6102) has a side hole (6103) on its side, and a limiting rod (612) passes through the side hole (6103). One end of the limiting rod (612) is fixedly connected to the side of the pin (611), and the other end is limited to the hinge support (624) to restrict the extension and retraction of the pin (611).

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