Surfboard capable of switching tail fins

The interchangeable tail fin surfboard addresses the limitations of fixed fin configurations by enabling easy switching and safety enhancements, offering improved durability and quick separation.

CN223100962UActive Publication Date: 2025-07-15GUANGDONG HAISAI SPORTS EQUIP CO LTD
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Patent Information

Application Number
CN202421789587.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-26
Publication Date
2025-07-15
Estimated Expiration
2034-07-26

AI Technical Summary

Technical Problem

The fixing method of the tail fin of the traditional surfboard is not convenient to replace, which affects the diversity and user experience of surfing methods, and lacks anti-collision, wear resistance and rapid separation functions.

Method used

A switchable tail fin structure is designed to achieve rapid replacement of the tail fin through the pull rod and the adjusting spring-driven telescopic rod; combined with the anti-collision wear-resistant structure, the cushioning airbag and neoprene outer layer provide wear-resistant protection; the fast separation structure achieves rapid separation between people and boards by connecting the seat and rope.

Benefits of technology

It realizes rapid switching of tail fins, improving the diversity and user experience of surfing methods; provides anti-collision and wear resistance, enhancing safety and durability; and rapidly detaching the structure improves safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223100962U_ABST
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Abstract

The utility model discloses a surfboard capable of switching tail fins, which comprises a surfboard body, a fixing seat is mounted at the rear end of the surfboard body, a pull rod is mounted at the top end of the fixing seat, a telescopic rod is inserted into the bottom of the pull rod, an adjusting spring is connected to the bottom of the pull rod, a vertical rod is mounted at the rear end of the fixing seat, and the tail fins of the vertical rod can be switched. The rear end of the vertical rod is connected with a sliding hydrofoil, and the front end of the vertical rod is provided with a fixed clamping block and a clamping base. By arranging the switchable tail fin structure, the three groups of shark fins are clamped with the shark mounting seat at the bottom of the surfboard body during use, the telescopic rod is driven by the pull rod on one side of the fixing seat to pull outwards, and after the clamping seat at the top of the vertical rod and the fixing clamping block are clamped with the fixing seat at the bottom of the surfboard body, the telescopic rod is driven by the telescopic rod to pull outwards. And a pull rod drives a telescopic rod to be inserted into a fixed clamping block through springback of an adjusting spring, a sliding hydrofoil is fixed to the bottom of the surfboard body through a vertical rod, the tail fins can be switched, and the diversity of surfing modes and the surfing experience are improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of surfboards, in particular to a surfboard with a switchable fin. Background Technique

[0002] A surfboard is a sports equipment for surfing on the sea, and it is divided into different types according to the surfing environment and skills. Surfing takes the waves as the power and is carried out on the windy seashore. The height of the waves should be about 1 meter, and the minimum should not be less than 30 centimeters. In order to increase the stability and maneuverability of surfing, accessories such as shark fins and hydrofoils will be installed on the surfboard.

[0003] Traditionally, a surfboard that surfs close to the water surface only has a set of shark fin rudder systems, and a hydrofoil board that surfs out of the water surface is equipped with a hydrofoil system. They are two different types of surfboards. The surfing methods are different, and the fins used by the surfboards will also be different. However, common surfboards can only install one type of fin. In particular, the hydrofoil is generally fixed under the surfboard, and it is more troublesome to replace, and it is not convenient to replace temporarily. Therefore, we propose a surfboard with a switchable fin to improve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a surfboard with a switchable fin to solve the problems proposed in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A surfboard with a switchable fin, including a surfboard body, a fixed seat is installed at the rear end of the surfboard body, a pull rod is installed at the top of the fixed seat, a telescopic rod is inserted at the bottom of the pull rod, a regulating spring is connected to the bottom of the pull rod, a vertical rod is installed at the rear end of the fixed seat, a sliding hydrofoil is connected to the rear end of the vertical rod, a fixed clamping block and a clamping seat are installed at the front end of the vertical rod, a shark installation seat is arranged at the rear end of the surfboard body, and a shark fin is connected to the rear end of the shark installation seat.

[0006] Preferably, the vertical rod is clamped to the fixed seat at the rear end of the surfboard body through the clamping seat and the fixed clamping block, the pull rod can be telescoped at the top of the fixed seat through the regulating spring, the pull rod drives the telescopic rod to be telescoped at the top of the fixed seat, and the pull rod drives the telescopic rod inside the fixed seat to be inserted into the fixed clamping block at the front end of the vertical rod.

[0007] Preferably, the sliding hydrofoil is installed on the fixed seat at the rear end of the surfboard body through the vertical rod, and the shark fin is fixed to the rear end of the surfboard body through the shark installation seat.

[0008] Preferably, a connection seat is provided at the front end of the surfboard body. Side hanging rings are installed around the front end of the surfboard body. An anti-slip layer is laid at the front end of the surfboard body. A handle is installed at the front end of the surfboard body.

[0009] Preferably, an outer wear-resistant layer is provided outside the surfboard body. A buffer airbag is provided inside the outer wear-resistant layer. An air inlet is provided at the bottom of the rear end of the surfboard body.

[0010] Preferably, a buffer airbag is provided between the surfboard body and the outer wear-resistant layer. The air inlet is communicated with the buffer airbag through the surfboard body. The outer wear-resistant layer is arranged on the periphery of the surfboard body.

[0011] Preferably, a connection hanging seat is provided below the front end of the surfboard body. A connection rope is connected to the outside of the connection hanging seat. One end of the connection rope is connected to a connection slot. A connection plug rod is inserted into the connection slot. A fixed collar is connected to one side of the connection plug rod.

[0012] Preferably, the connection plug rod is clamped with the connection slot. The fixed collar is connected to the connection rope through the connection plug rod and the connection slot. The surfboard body is connected to the connection rope through the connection hanging seat.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: This kind of surfboard with a switchable fin not only realizes the function of switchable fins, realizes the function of anti-collision and wear resistance, but also realizes the function of support and reinforcement;

[0014] (1) By setting the switchable fin structure, the present utility model has the following advantages: When in use, different fins can be replaced according to surfing needs. Clamp the three groups of shark fins with the shark mounting seat at the bottom of the surfboard body to fix the shark fins at the bottom of the surfboard body. Or pull the pull rod on one side of the fixed seat to drive the telescopic rod outwards. After clamping the clamping seat and the fixed clamping block at the top of the vertical rod with the fixed seat at the bottom of the surfboard body, let the pull rod drive the telescopic rod to insert into the fixed clamping block through the rebound of the adjusting spring, and fix the sliding hydrofoil at the bottom of the surfboard body through the vertical rod, thereby realizing the function of switchable fins. Incorporate two sets of rudder systems on a traditional surfboard to realize the random switching of two rudder systems on one surfboard, and realize the dual-purpose function of one surfboard. When the shark fins are installed, it is surfing close to the water surface. When the hydrofoils are installed, it can surf out of the water, improving the diversity of surfing methods and enhancing the user experience of surfers;

[0015] (2) By setting up an anti-collision and wear-resistant structure, the beneficial effects of the present utility model are as follows: When in use, the buffer airbag between the surfboard body and the outer wear-resistant layer is inflated through the air inlet at the bottom of the surfboard body. When the outside of the surfboard body is impacted, the buffer airbag inside the surfboard body can provide buffering. After that, the outer wear-resistant layer on the outside of the surfboard body is made of neoprene, which has wear resistance and corrosion resistance, thus realizing the anti-collision and wear-resistant function;

[0016] (3) By setting up a quick separation structure, the beneficial effects of the present utility model are as follows: When in use, the surfboard body is connected to the connecting rope through the connecting hanging seat. After putting the fixing collar on the foot, the connecting insertion rod on one side of the fixing collar is snapped into the connecting slot on one side of the connecting rope. In this way, it is not necessary to repeatedly put on the fixing collar to make it loose. At the same time, in the water, through the connecting slot and the connecting insertion rod, people can quickly separate from the surfboard body, thus realizing the quick separation function and improving the safety of surfing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view structural schematic diagram of the present utility model;

[0018] Figure 2 is the rear view sectional structural schematic diagram of the surfboard body of the present utility model;

[0019] Figure 3 is the side view structural schematic diagram of the surfboard body of the present utility model;

[0020] Figure 4 is the sectional structural schematic diagram of the fixing seat and the vertical rod at the bottom of the surfboard body of the present utility model;

[0021] Figure 5 is of the present utility model Figure 2 side view sectional structural schematic diagram at A - A;

[0022] Figure 6 is the enlarged structural schematic diagram of the fixing collar and the connecting rope of the present utility model.

[0023] In the figure: 1, surfboard body; 2, connecting seat; 3, side hanging ring; 4, anti-slip layer; 5, handle; 6, connecting hanging seat; 7, connecting rope; 8, fixing collar; 9, vertical rod; 10, sliding hydrofoil; 11, shark fin; 12, outer wear-resistant layer; 13, pull rod; 14, telescopic rod; 15, adjusting spring; 16, fixing seat; 17, shark mounting seat; 18, air inlet; 19, clamping seat; 20, fixing block; 21, buffer airbag; 22, connecting slot; 23, connecting insertion rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1: Please refer to Figures 1-6 , a surfboard with a switchable fin, including a surfboard body 1. A fixed seat 16 is installed at the rear end of the surfboard body 1. A pull rod 13 is installed at the top of the fixed seat 16. A telescopic rod 14 is inserted at the bottom of the pull rod 13. A regulating spring 15 is connected to the bottom of the pull rod 13. A vertical rod 9 is installed at the rear end of the fixed seat 16. A sliding hydrofoil 10 is connected to the rear end of the vertical rod 9. A fixed clamping block 20 and a clamping seat 19 are installed at the front end of the vertical rod 9. A shark mounting seat 17 is provided at the rear end of the surfboard body 1. A shark fin 11 is connected to the rear end of the shark mounting seat 17;

[0026] The vertical rod 9 is clamped to the fixed seat 16 at the rear end of the surfboard body 1 through the clamping seat 19 and the fixed clamping block 20. The pull rod 13 can be telescoped at the top of the fixed seat 16 through the regulating spring 15. The pull rod 13 drives the telescopic rod 14 to be telescoped at the top of the fixed seat 16. The pull rod 13 drives the telescopic rod 14 inside the fixed seat 16 to be inserted into the fixed clamping block 20 at the front end of the vertical rod 9. The sliding hydrofoil 10 is installed on the fixed seat 16 at the rear end of the surfboard body 1 through the vertical rod 9. The shark fin 11 is fixed to the rear end of the surfboard body 1 through the shark mounting seat 17;

[0027] Specifically, as shown in Figure 1 , Figure 2 and Figure 4 , by setting a switchable fin structure, different fins can be replaced according to surfing needs during use. The three groups of shark fins 11 are clamped to the shark mounting seat 17 at the bottom of the surfboard body 1 to fix the shark fins 11 to the bottom of the surfboard body 1, or the pull rod 13 on one side of the fixed seat 16 drives the telescopic rod 14 to be pulled outwards. After the clamping seat 19 and the fixed clamping block 20 at the top of the vertical rod 9 are clamped to the fixed seat 16 at the bottom of the surfboard body 1, the pull rod 13 drives the telescopic rod 14 to be inserted into the fixed clamping block 20 through the rebound of the regulating spring 15, and the sliding hydrofoil 10 is fixed to the bottom of the surfboard body 1 through the vertical rod 9, thus realizing the function of switchable fins.

[0028] It is worth mentioning that the three groups of shark fins 11 are clamped to the shark mounting seat 17 at the bottom of the surfboard body 1 by using the clamping method in the prior art, which will not be elaborated here.

[0029] Among them, a connection seat 2 is provided at the front end of the surfboard body 1. Side hanging rings 3 are installed around the front end of the surfboard body 1. An anti-slip layer 4 is laid at the front end of the surfboard body 1. A handle 5 is installed at the front end of the surfboard body 1.

[0030] Embodiment 2: An outer wear-resistant layer 12 is provided outside the surfboard body 1. A buffer airbag 21 is provided inside the outer wear-resistant layer 12. An air inlet 18 is provided at the bottom of the rear end of the surfboard body 1;

[0031] A buffer airbag 21 is provided between the surfboard body 1 and the outer wear-resistant layer 12. The air inlet 18 is communicated with the buffer airbag 21 through the surfboard body 1. The outer wear-resistant layer 12 is provided on the periphery of the surfboard body 1;

[0032] Specifically, as Figure 3 and Figure 5 shown, by setting the anti-collision and wear-resistant structure, when in use, the buffer airbag 21 between the surfboard body 1 and the outer wear-resistant layer 12 is inflated through the air inlet 18 at the bottom of the surfboard body 1. When the outside of the surfboard body 1 is impacted, the buffer airbag 21 inside the surfboard body 1 can buffer. After that, the outer wear-resistant layer 12 outside the surfboard body 1 is made of neoprene, which has wear resistance and corrosion resistance, thus realizing the anti-collision and wear-resistant function.

[0033] Embodiment 3: A connection hanging seat 6 is provided below the front end of the surfboard body 1. A connection rope 7 is connected to the outside of the connection hanging seat 6. One end of the connection rope 7 is connected to a connection slot 22. A connection plug rod 23 is inserted into the connection slot 22. A fixed collar 8 is connected to one side of the connection plug rod 23;

[0034] The connection plug rod 23 is clamped with the connection slot 22. The fixed collar 8 is connected to the connection rope 7 through the connection plug rod 23 and the connection slot 22. The surfboard body 1 is connected to the connection rope 7 through the connection hanging seat 6;

[0035] Specifically, as Figure 1 and Figure 6 shown, by setting the quick separation structure, when in use, the surfboard body 1 is connected to the connection rope 7 through the connection hanging seat 6. After the fixed collar 8 is put on the surfer's foot, the connection plug rod 23 on one side of the fixed collar 8 is clamped with the connection slot 22 on one side of the connection rope 7. This can reduce the frequency of putting on and taking off the fixed collar 8 by the surfer, thus reducing the possibility of the fixed collar 8 becoming loose due to repeated putting on of the fixed collar 8. At the same time, in the water, the person and the surfboard body 1 can be quickly separated through the connection slot 22 and the connection plug rod 23, thus realizing the quick separation function and improving the safety of surfing.

[0036] Working principle: When in use, the utility model can replace different fins according to surfing needs. Snap the three groups of shark fins 11 onto the shark mounting seats 17 at the bottom of the surfboard body 1 to fix the shark fins 11 at the bottom of the surfboard body 1. Or pull the telescopic rod 14 outward by driving the pull rod 13 on one side of the fixing seat 16. After snapping the clamping seat 19 and the fixed clamping block 20 at the top of the vertical rod 9 onto the fixing seat 16 at the bottom of the surfboard body 1, let the pull rod 13 drive the telescopic rod 14 to insert into the fixed clamping block 20 through the rebound of the adjusting spring 15, and fix the sliding hydrofoil 10 at the bottom of the surfboard body 1 through the vertical rod 9. Then, inflate the buffer airbag 21 between the surfboard body 1 and the outer wear-resistant layer 12 through the air inlet 18 at the bottom of the surfboard body 1. When the outside of the surfboard body 1 is impacted, the buffer airbag 21 inside the surfboard body 1 can buffer. Connect the surfboard body 1 to the connecting rope 7 through the connecting hanging seat 6. After putting the fixed collar 8 on the foot, snap the connecting insertion rod 23 on one side of the fixed collar 8 into the connecting slot 22 on one side of the connecting rope 7. At the same time, when surfing in the water, the person and the surfboard body 1 can be quickly separated through the connecting slot 22 and the connecting insertion rod 23.

[0037] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A surfboard with a switchable tail fin, comprising a surfboard body (1), characterized in that: A fixing seat (16) is installed at the rear end of the surfboard body (1). A pull rod (13) is installed at the top of the fixing seat (16). A telescopic rod (14) is inserted at the bottom of the pull rod (13). A regulating spring (15) is connected to the bottom of the pull rod (13). A vertical rod (9) is installed at the rear end of the fixing seat (16). A sliding hydrofoil (10) is connected to the rear end of the vertical rod (9). A fixing catch block (20) and a clamping seat (19) are installed at the front end of the vertical rod (9). A shark mounting seat (17) is arranged at the rear end of the surfboard body (1). A shark fin (11) is connected to the rear end of the shark mounting seat (17).

2. The surfboard with a switchable tail fin according to claim 1, wherein: The vertical rod (9) is clamped to the fixing seat (16) at the rear end of the surfboard body (1) through the clamping seat (19) and the fixing catch block (20). The pull rod (13) is telescopic at the top of the fixing seat (16) through the regulating spring (15). The pull rod (13) drives the telescopic rod (14) to be telescopic on the top of the fixing seat (16). The pull rod (13) drives the telescopic rod (14) inside the fixing seat (16) to be inserted into the fixing catch block (20) at the front end of the vertical rod (9).

3. The surfboard with a switchable tail fin according to claim 1, characterized in that: The sliding hydrofoil (10) is installed on the fixing seat (16) at the rear end of the surfboard body (1) through the vertical rod (9). The shark fin (11) is fixed to the rear end of the surfboard body (1) through the shark mounting seat (17).

4. A surfboard with a switchable tail fin according to claim 1, characterized in that: A connecting seat (2) is arranged at the front end of the surfboard body (1). Side hanging rings (3) are installed around the front end of the surfboard body (1). An anti-slip layer (4) is laid at the front end of the surfboard body (1). A handle (5) is installed at the front end of the surfboard body (1).

5. The surfboard with a switchable tail fin according to claim 1, characterized in that: An outer wear-resistant layer (12) is arranged outside the surfboard body (1). A buffer airbag (21) is arranged inside the outer wear-resistant layer (12). An air inlet (18) is arranged at the bottom of the rear end of the surfboard body (1).

6. The surfboard with a switchable tail fin according to claim 5, characterized in that: A buffer airbag (21) is arranged between the surfboard body (1) and the outer wear-resistant layer (12). The air inlet (18) is communicated with the buffer airbag (21) through the surfboard body (1). The outer wear-resistant layer (12) is arranged on the periphery of the surfboard body (1).

7. The surfboard with a switchable tail fin according to claim 1, characterized in that: A connecting hanging seat (6) is arranged below the front end of the surfboard body (1). A connecting rope (7) is connected to the outside of the connecting hanging seat (6). One end of the connecting rope (7) is connected to a connecting slot (22). A connecting plug rod (23) is inserted into the connecting slot (22). A fixing collar (8) is connected to one side of the connecting plug rod (23).

8. A surfboard with a switchable tail fin according to claim 7, characterized in that: The connecting plug rod (23) is clamped to the connecting slot (22). The fixing collar (8) is connected to the connecting rope (7) through the connecting plug rod (23) and the connecting slot (22). The surfboard body (1) is connected to the connecting rope (7) through the connecting hanging seat (6).