Elastic tail fin structure and surfboard and power floating plate with same

Abstract

The utility model discloses an elastic tail fin structure which comprises a fiber base layer, a plurality of resin bonding layers and a plurality of fiber middle layers are fixed on two sides of the fiber base layer, the resin bonding layers and the fiber middle layers are alternately arranged, and the lengths of the resin bonding layers and the fiber middle layers are gradually reduced. The elastic tail fin structure has the advantages that the multiple fiber middle layers are stacked on the two sides of the fiber base layer through the resin bonding layers to form the boneless tail fin, and compared with a tail fin structure with a fin bone and a wing membrane combined, the elastic tail fin has better elasticity and toughness, and the propelling efficiency can be improved; and the whole tail fin is of a structure with a thick front end and a thin rear end, so that the elastic coefficient of the tail fin structure is gradually reduced from the root of the front end to the tip of the rear end, elastic potential energy can be better stored at different speeds and pendulum frequencies, and the propelling efficiency is improved. The elastic tail fin can be applied to water sports equipment such as a surfboard and a power floating plate and is used for providing auxiliary thrust and improving user experience.

Description

TECHNICAL FIELD

[0001] The utility model relates to bionic tail fin technical field, concretely relates to a kind of elastic tail fin structure and the surfboard with the tail fin structure of this. BACKGROUND

[0002] Current water recreation, fitness, sports, competition project is traditional project, such as swimming, water polo, kayak, dragon boat, surfing etc., although can attract a batch of people to participate, but each item needs to invest time to learn, train, and even if learned also not necessarily can learn, learn well, even if trained also not necessarily can participate in competition. And want to create an interesting, novel, can attract more people to participate in water sports, necessary equipment is essential;Currently, a tail fin structure that can be connected with other water sports equipment, water vehicle or human body appears, this tail fin structure is mainly composed of fin bone and wing membrane covered on both sides of fin bone, but, since fin bone itself has rigidity, therefore, the swing and frequency in water are limited, and the auxiliary effect for sports equipment, water vehicle or human body driving is poor. UTILITY MODEL CONTENT

[0003] The first purpose of the utility model is to provide an elastic tail fin structure.

[0004] The second purpose of the utility model is to provide a surfboard.

[0005] The third purpose of the utility model is to provide a power floating plate.

[0006] The first purpose of the utility model is implemented by the following technical scheme: an elastic tail fin structure, which comprises a fiber base layer, a plurality of resin bonding layers and fiber intermediate layers are fixed on both sides of the fiber base layer, and the lengths of the resin bonding layers and the fiber intermediate layers are gradually reduced; the front ends of the resin bonding layers and the fiber intermediate layers are flush with the front end of the fiber base layer, and the rear ends of the plurality of resin bonding layers and the fiber intermediate layers form a stepped structure with the rear end of the fiber base layer; a resin surface layer is covered on the outer surface of the fiber intermediate layer and the stepped structure in the outermost layer.

[0007] Further, the fiber base layer and the fiber intermediate layer are any one of glass fiber layer or carbon fiber layer.

[0008] Further, the resin surface layer on the surface of the stepped structure is in streamline shape.

[0009] The second object of the utility model is implemented by the following technical scheme: a surfboard, two elastic tail fin structures are arranged on the bottom of the surfboard body, the front end of the elastic tail fin structure is fixed with a fixing part connected with the bottom of the surfboard body, the elastic tail fin structure comprises a fiber base layer, resin adhesive layers and fiber intermediate layers are fixed on the two sides of the fiber base layer, the front end of the resin adhesive layer and the fiber intermediate layer is flush with the front end of the fiber base layer, the rear end of the resin adhesive layer and the fiber intermediate layer forms a stepped structure with the rear end of the fiber base layer, and a resin surface layer is arranged on the outer surface of the fiber intermediate layer and the stepped structure.

[0010] Further, the fiber base layer and the fiber intermediate layer are any one of a glass fiber layer or a carbon fiber layer.

[0011] Further, the resin surface layer on the surface of the stepped structure is streamline-shaped.

[0012] The third object of the utility model is implemented by the following technical scheme: a power float, a pair of elastic tail fin structures are arranged on the two sides of the power float body, the front end of the elastic tail fin structure is connected with the side of the power float body through a connecting piece, the elastic tail fin structure comprises a fiber base layer, resin adhesive layers and fiber intermediate layers are fixed on the two sides of the fiber base layer, the front end of the resin adhesive layer and the fiber intermediate layer is flush with the front end of the fiber base layer, the rear end of the resin adhesive layer and the fiber intermediate layer forms a stepped structure with the rear end of the fiber base layer, and a resin surface layer is arranged on the outer surface of the fiber intermediate layer and the stepped structure.

[0013] Further, the fiber base layer and the fiber intermediate layer are any one of a glass fiber layer or a carbon fiber layer.

[0014] Further, the resin surface layer on the surface of the stepped structure is streamline-shaped.

[0015] The utility model has the advantages that: the elastic tail fin structure in the application forms a boneless tail fin by stacking multiple fiber intermediate layers on the two sides of the fiber base layer through the resin adhesive layer, compared with the tail fin structure combined with the fin bone and the wing membrane, the elastic tail fin has better elasticity and toughness, which is beneficial to improve the propulsion efficiency; and the overall structure is thick at the front end and thin at the rear end, so that the elastic coefficient of the tail fin structure gradually decreases from the front end root to the rear end tip, which can better store elastic potential energy at different speeds and swing frequencies, thereby improving the propulsion efficiency. The elastic tail fin in the application can be applied to water sports equipment such as surfboards and power floats, and is used for providing auxiliary thrust and improving user experience.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic view of a flexible tail fin structure.

[0017] Figure 2 is a schematic view of a surfboard structure.

[0018] Figure 3 is a bottom view of Figure 2

[0019] Figure 4 is a schematic view of a powered float structure.

[0020] Label name

[0021] 1 - fiber base layer, 2 - resin bonding layer, 3 - fiber intermediate layer, 4 - resin surface layer, 5 - surfboard body, 6 - flexible tail fin structure, 7 - powered float body, 8 - fixing member, 9 - connecting member. DETAILED DESCRIPTION

[0022] In the description of the present application, it should be explained that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like appear, the indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, if the terms "first", "second", "third" appear, they are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] Example 1: as Figure 1As shown in the figure, an elastic tail fin structure includes a fiber base layer 1, a plurality of resin bonding layers 2 and fiber intermediate layers 3 are fixed on both sides of the fiber base layer 1 in an alternating manner, and the length gradually decreases; the fiber base layer 1 and the fiber intermediate layer 3 are any one of a glass fiber layer or a carbon fiber layer, which is a carbon fiber layer in this embodiment; the front ends of the resin bonding layer 2 and the fiber intermediate layer 3 are flush with the front end of the fiber base layer 1, and the rear ends of the plurality of resin bonding layers 2 and the fiber intermediate layers 3 form a stepped structure with the rear end of the fiber base layer 1; the outer surface of the outermost fiber intermediate layer 3 and the stepped structure is covered with a resin surface layer 4, and the resin surface layer 4 on the surface of the stepped structure is in a streamline shape. The elastic tail fin structure in this embodiment forms a boneless tail fin by stacking multiple fiber intermediate layers 3 on both sides of the fiber base layer 1 through the resin bonding layer 2. Compared with the tail fin structure combined with fin bones and wing membranes, the elastic tail fin of the present application has better elasticity and toughness, which is beneficial to improve the propulsion efficiency. And the whole is in a structure of thick front end and thin rear end, so that the elastic coefficient of the tail fin structure gradually decreases from the front end root to the rear end tip, which can better store elastic potential energy at different speeds and swing frequencies, thereby improving the propulsion efficiency.

[0024] Embodiment 2: as Figures 1 to 3 As shown in the figure, a surfboard includes a surfboard body 5, two elastic tail fin structures 6 are arranged in front and back on the bottom of the surfboard body 5, a fixing piece 8 connected with the bottom of the surfboard body 5 is fixed at the front end of the elastic tail fin structure 6, the elastic tail fin structure 6 includes a fiber base layer 1, a plurality of resin bonding layers 2 and fiber intermediate layers 3 are fixed on both sides of the fiber base layer 1 in an alternating manner, and the length gradually decreases; the fiber base layer 1 and the fiber intermediate layer 3 are any one of a glass fiber layer or a carbon fiber layer, which is a carbon fiber layer in this embodiment. The front ends of the resin bonding layer 2 and the fiber intermediate layer 3 are flush with the front end of the fiber base layer 1, and the rear ends of the plurality of resin bonding layers 2 and the fiber intermediate layers 3 form a stepped structure with the rear end of the fiber base layer 1; the outer surface of the outermost fiber intermediate layer 3 and the stepped structure is covered with a resin surface layer 4, and the resin surface layer 4 on the surface of the stepped structure is in a streamline shape. The traditional surfboard relies on the impact of spray and the gravity of the human body to generate forward thrust; while the surfboard in this embodiment is provided with a tail fin structure at the bottom, after the user stands on the top of the surfboard body 5, the elastic tail fin structure 6 swings left and right by alternatingly stepping or tilting the center of gravity, simulating fish tail propulsion, which can generate forward thrust, improve speed, and improve user experience.

[0025] Embodiment 3: as Figure 1 and Figure 4As shown, a power floating plate comprises a power floating plate body 7, a pair of horizontally arranged elastic tail fin structures 6 are arranged on both sides of the power floating plate body 7, the front ends of the elastic tail fin structures 6 are connected with the side portions of the power floating plate body 7 through connecting pieces 9; the elastic tail fin structure 6 comprises a fiber base layer 1, a plurality of resin adhesive layers 2 and fiber intermediate layers 3 which are arranged alternately and gradually decrease in length are fixed on both sides of the fiber base layer 1; the front ends of the resin adhesive layers 2 and the fiber intermediate layers 3 are flush with the front end of the fiber base layer 1, the rear ends of the plurality of resin adhesive layers 2 and the fiber intermediate layers 3 and the rear end of the fiber base layer 1 form a stepped structure; a resin surface layer 4 is covered on the outer surface of the outermost fiber intermediate layer 3 and the stepped structure, the resin surface layer 4 on the surface of the stepped structure is in a streamline shape. The fiber base layer 1 and the fiber intermediate layer 3 are any one of a glass fiber layer or a carbon fiber layer, and in the embodiment, the carbon fiber layer. The common power floating plate can only provide driving force through the power equipment, the power floating plate in the embodiment is provided with the elastic tail fin structure 6 on both sides, the user can control the left and right swing of the power floating plate body 7 by using the strength of waist, abdomen and arms or tilting the center of gravity, so as to make the elastic tail fin imitate the swing of fish tail to provide forward driving force, which is helpful to improve the speed.

[0026] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An elastic tailfin structure, characterized by, It includes a fiber base layer, a plurality of resin bonding layers and fiber intermediate layers fixed on both sides of the fiber base layer, and the resin bonding layers and the fiber intermediate layers are arranged alternately and gradually decrease in length; the front ends of the resin bonding layers and the fiber intermediate layers are flush with the front end of the fiber base layer, and the rear ends of the resin bonding layers and the fiber intermediate layers form a stepped structure with the rear end of the fiber base layer; a resin surface layer is covered on the outer surface of the outermost fiber intermediate layer and the stepped structure.

2. The flexible tailfin structure of claim 1, wherein, The fiber base layer and the fiber intermediate layer are any one of a glass fiber layer or a carbon fiber layer.

3. A flexible tailfin structure according to claim 1 or 2, c h a r a c t e r i s e d in that The resin surface layer on the surface of the stepped structure is streamlined.

4. A surfboard having the flexible tail fin structure of any one of claims 1 to 3, comprising a surfboard body, characterised in that, Two elastic tail fin structures are arranged on the bottom of the surfboard body, and the front ends of the elastic tail fin structures are fixed with fixing members connected with the bottom of the surfboard body; the elastic tail fin structure includes a fiber base layer, a plurality of resin bonding layers and fiber intermediate layers fixed on both sides of the fiber base layer, and the resin bonding layers and the fiber intermediate layers are arranged alternately and gradually decrease in length; the front ends of the resin bonding layers and the fiber intermediate layers are flush with the front end of the fiber base layer, and the rear ends of the resin bonding layers and the fiber intermediate layers form a stepped structure with the rear end of the fiber base layer; a resin surface layer is covered on the outer surface of the outermost fiber intermediate layer and the stepped structure.

5. A surfboard as claimed in claim 4 wherein, The fiber base layer and the fiber intermediate layer are any one of a glass fiber layer or a carbon fiber layer.

6. A surfboard as claimed in claim 4 or 5 wherein, The resin surface layer on the surface of the stepped structure is streamlined.

7. A powered board having the elastomeric tail fin structure of any one of claims 1 to 3, comprising a powered board body, characterised in that, A pair of elastic tail fin structures are arranged on both sides of the body of the powered floating board, and the front ends of the elastic tail fin structures are connected with the side of the body of the powered floating board through connecting members; the elastic tail fin structure includes a fiber base layer, a plurality of resin bonding layers and fiber intermediate layers fixed on both sides of the fiber base layer, and the resin bonding layers and the fiber intermediate layers are arranged alternately and gradually decrease in length; the front ends of the resin bonding layers and the fiber intermediate layers are flush with the front end of the fiber base layer, and the rear ends of the resin bonding layers and the fiber intermediate layers form a stepped structure with the rear end of the fiber base layer; a resin surface layer is covered on the outer surface of the outermost fiber intermediate layer and the stepped structure.

8. A power pad according to claim 7, wherein, The fiber base layer and the fiber intermediate layer are any one of a glass fiber layer or a carbon fiber layer.

9. A power pad according to claim 7 or 8, wherein, The resin surface layer on the surface of the stepped structure is streamlined.

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