Tail fin on surfboard

Abstract

A tail fin on a surfboard comprises a tail fin body, a connecting part is arranged at the bottom of the tail fin body, a dismounting and mounting seat is fixed on a surfboard body, an inserting hole capable of being connected with the connecting part in an inserting mode is formed in the dismounting and mounting seat, and a lock catch button which can loosen the connecting part when pressed and can automatically reset to lock the connecting part when not pressed is arranged in the middle of the dismounting and mounting seat. The manufacturing method of the surfboard tail fin comprises the following steps that when a surfboard body of a surfboard is manufactured, a shaping frame is embedded, and the shaping frame is embedded into the surfboard body; a groove is formed in the top of the shaping frame, so that the dismounting seat can be embedded in the shaping frame; manufacturing a tail fin body and a dismounting seat; embedding and fixing the disassembly and assembly seat in the shaping frame; and the connecting part of the tail fin body is inserted into the inserting hole, so that the concave part of the connecting part is buckled with the corresponding swinging block. The tail fin mounting structure has the advantages that the tail fin can be mounted only by pressing and inserting, the mounting is convenient, the tail fin can be dismounted only by pressing the lock catch button of the dismounting seat, and the dismounting is very convenient.

Description

Technical Field

[0001] The utility model relates to a safety control device, in particular to a fin on a surfboard. Background Art

[0002] There is a Chinese invention patent application with the application number CN202210121392.1 and the name "Surfboard and Its High-Performance Surfboard Rudder", which discloses a high-performance surfboard rudder, including a rudder body, a first sub-rudder and a second sub-rudder; the first sub-rudder and the second sub-rudder are respectively detachably installed on both sides of the rudder body, the shapes of the first sub-rudder and the second sub-rudder are the same, and the sizes of the first sub-rudder and the second sub-rudder are equal. When a user uses the high-performance surfboard of this invention, the first sub-rudder and the second sub-rudder can be disassembled and assembled according to actual needs, so that the direction of the surfboard equipped with the high-performance surfboard rudder of this invention is easier to control, and it is easier to maintain the balance of the surfboard, saving costs and enabling the user to have a better use effect. However, the disassembly and installation of the rudder of this surfboard are not convenient enough, so the structure of this surfboard needs to be further improved. Summary of the Invention

[0003] The first technical problem to be solved by the utility model is to provide a fin on a surfboard with a simple structure, easy to manufacture, and convenient for disassembly and assembly in view of the above-mentioned prior art status.

[0004] The technical solution adopted by the utility model to solve the above technical problem is as follows: The fin on this surfboard includes a fin body, and a connecting part capable of being connected to the board body of the surfboard is arranged at the bottom of the fin body. It is characterized in that: a disassembly and assembly seat is fixed on the board body, a plug hole for plugging the connecting part is arranged on the disassembly and assembly seat, and a lock button capable of releasing the connecting part when pressed and automatically resetting and locking the connecting part when not pressed is arranged in the middle of the disassembly and assembly seat.

[0005] As an improvement, an installation groove can preferably be arranged on the board body, the disassembly and assembly seat is fitted and fixed in the installation groove, and the surface of the disassembly and assembly seat is flush with the bottom surface of the board body.

[0006] Further improvement, a shaping frame can preferably be arranged in the installation groove, the shape of the shaping frame is adapted to the shape of the disassembly and assembly seat, and the disassembly and assembly seat is fitted in the shaping frame.

[0007] As an improvement, an installation opening for a latch button may preferably be provided in the middle of the disassembly and assembly seat. A rotating shaft is provided in the installation opening. The cover body of the latch button covers the rotating shaft. One ends of two swing blocks of the latch button are respectively sleeved on the rotating shaft, and the other ends of the two swing blocks are connected together by a return spring. The swing blocks are in contact with the cover body, and a connecting part concave portion that can be buckled with the swing blocks is provided on the connecting part.

[0008] As a further improvement, inner wall convex portions may preferably be symmetrically provided on the inner wall of the installation opening. The rotating shaft is rotatably connected to the inner wall convex portions. A cover body notch for avoiding contact with the inner convex portion is provided at the bottom of the cover body.

[0009] As a further improvement, a cover body top plate that can contact the swing block may preferably be provided at the bottom of the cover body. The end face of the cover body top plate is an inclined surface that can fit with the swing block.

[0010] As a further improvement, swing block convex columns may preferably be respectively provided at the bottoms of the two swing blocks. Two ends of the return spring are respectively sleeved on the corresponding swing block convex columns. A convex portion groove for accommodating the swing convex column and the return spring is provided at the bottom of the inner wall convex portion. A gap is left between the surface of the convex portion groove and the outer wall of the return spring. Swing block concave portions are respectively provided on the two swing blocks, and the corresponding swing block concave portions on the two swing blocks can be locked together when the swing blocks swing.

[0011] As an improvement, the plate body may preferably include an inner layer and an outer layer. The shaping frame is fitted on the inner layer. An outer layer through hole is provided on the outer layer corresponding to the fitting position of the shaping frame. A front anti-slip pad and a rear anti-slip pad are provided on the top surface of the outer layer. A front pad body protrusion is provided in the middle of the front anti-slip pad. Front water guiding through grooves are distributed on the front anti-slip pad. Rear pad body protrusions are provided in the middle and rear of the rear anti-slip pad. Rear water guiding through grooves are distributed on the rear anti-slip pad.

[0012] The second technical problem to be solved by the present utility model is to provide a manufacturing method for a fin on a surfboard that is simple in structure, convenient to manufacture, and convenient to disassemble and assemble in view of the above-mentioned prior art status.

[0013] The technical solution adopted by the present utility model to solve the above technical problems is as follows: The manufacturing method for the fin on the surfboard as described above is characterized by including the following steps.

[0014] 1. When manufacturing the plate body of the surfboard, embed the shaping frame so that the shaping frame is fitted in the plate body.

[0015] 2. Dig a groove at the top of the shaping frame so that the disassembly and assembly seat can be fitted in the shaping frame.

[0016] III. Manufacture the tail fin body and the disassembly and assembly seat. Provide a plug hole on the disassembly and assembly seat for inserting the connecting part of the tail fin body. Provide a lock button in the middle of the disassembly and assembly seat, which can release the connecting part when pressed and automatically reset and lock the connecting part when not pressed. Provide an installation opening for the lock button in the middle of the disassembly and assembly seat. Provide a rotating shaft in the installation opening. The cover body of the lock button covers the rotating shaft. One end of each of the two swing blocks of the lock button is respectively sleeved on the rotating shaft, and the other ends of the two swing blocks are connected together by a return spring. The swing block abuts against the cover body. Provide a concave part on the connecting part that can be buckled with the swing block.

[0017] IV. Fit and fix the manufactured disassembly and assembly seat in the shaping frame.

[0018] V. Insert the connecting part of the tail fin body into the plug hole so that the concave part of the connecting part is buckled with the corresponding swing block, thereby positioning the tail fin body, and the manufacture of the tail fin on the surfboard is completed.

[0019] As an improvement, the shaping frame preferably includes a bottom plate and an upper shell, and an indicating protrusion for indicating the grooving position is provided at the top of the upper shell.

[0020] Compared with the prior art, the advantages of the present utility model are as follows: The tail fin is connected to the board body of the surfboard by a detachable structure. During installation, only pressing and inserting are required, and the installation is very convenient. During disassembly, only the lock button of the disassembly and assembly seat needs to be pressed, and the disassembly is also very convenient, which is convenient for replacing the tail fin and also convenient for tidying up and carrying the surfboard; The locking and unlocking of the tail fin are controlled by the lock button, with a simple structure, small occupied space, and very convenient use; There is no requirement for correct alignment of the disassembly and assembly seat, which is relatively simple during manufacture and installation, reduces the processing difficulty, and improves the manufacturing efficiency. Description of the Drawings

[0021] Figure 1 Is a three-dimensional view of the embodiment of the present utility model applied to a surfboard;

[0022] Figure 2 Is Figure 1 The top view of;

[0023] Figure 3 Is Figure 2 The sectional view along the line A-A in;

[0024] Figure 4 Is Figure 1 The three-dimensional view of another angle after removing the outer layer in;

[0025] Figure 5 Is Figure 4 The top view of;

[0026] Figure 6 Is Figure 5Cross-sectional view along line B-B;

[0027] Figure 7 is Figure 4 the structural decomposition diagram of;

[0028] Figure 8 is Figure 7 the further structural decomposition diagram of;

[0029] Figure 9 is Figure 8 the structural decomposition diagram of the disassembly and assembly seat in;

[0030] Figure 10 is Figure 9 the structural decomposition diagram at another angle;

[0031] Figure 11 is Figure 8 the further structural decomposition diagram of;

[0032] Figure 12 is Figure 11 the further structural decomposition diagram of;

[0033] Figure 13 is Figure 12 the structural decomposition diagram at another angle;

[0034] Figure 14 is the three-dimensional view of the shaping frame in the embodiment of the present utility model;

[0035] Figure 15 is Figure 14 the structural decomposition diagram of;

[0036] Figure 16 is Figure 14 the structural decomposition diagram at another angle;

[0037] Figure 17 is Figure 6 the enlarged view of part I in;

[0038] Figure 18 is Figure 17 the enlarged view of part II in. Specific embodiments

[0039] The present utility model will be further described in detail below in conjunction with the attached drawings and embodiments.

[0040] As Figures 1 to 18As shown in the figure, the fin on the surfboard of this embodiment includes a fin body 1. A connecting portion 11 capable of being connected to the board body 2 of the surfboard is provided at the bottom of the fin body 1. A disassembly and assembly seat 3 is fixed on the board body 2. A plugging hole 31 for plugging the connecting portion 11 is provided on the disassembly and assembly seat 3. A latch button 30 capable of releasing the connecting portion 11 when pressed and automatically resetting and locking the connecting portion 11 when not pressed is provided in the middle of the disassembly and assembly seat 3. An installation groove is provided on the board body 2, and the disassembly and assembly seat 3 is fitted and fixed in the installation groove. The surface of the disassembly and assembly seat 3 is flush with the bottom surface of the board body. A shaping frame 4 is provided in the installation groove. The shape of the shaping frame 4 is adapted to the shape of the disassembly and assembly seat 3, and the disassembly and assembly seat 3 is fitted in the shaping frame 4.

[0041] An installation opening 32 for the latch button 30 is provided in the middle of the disassembly and assembly seat 3. A rotating shaft 33 is provided in the installation opening 32. The cover body of the latch button 30 covers the rotating shaft 33. One ends of two swing blocks 34 of the latch button 30 are respectively sleeved on the rotating shaft 33, and the other ends of the two swing blocks 34 are connected together by a return spring 35. The swing blocks 34 are in contact with the cover body. A connecting portion recess 111 capable of being buckled with the swing blocks 34 is provided on the connecting portion 11. Inner wall convex portions 321 are symmetrically provided on the inner wall of the installation opening 32. The rotating shaft 33 is rotatably connected to the inner wall convex portions 321. A cover body notch 301 for avoiding contact with the inner convex portion 321 is provided at the bottom of the cover body.

[0042] A cover body top plate 302 capable of contacting the swing blocks 34 is provided at the bottom of the cover body. The end face of the cover body top plate 302 is an inclined surface capable of fitting with the swing blocks 34.

[0043] Swing block convex columns 341 are respectively provided at the bottoms of the two swing blocks 34. The two ends of the return spring 35 are respectively sleeved on the corresponding swing block convex columns 341. A convex portion groove 322 capable of accommodating the swing convex column 341 and the return spring 35 is provided at the bottom of the inner wall convex portion 321. A gap is left between the surface of the convex portion groove 322 and the outer wall of the return spring 35. Swing block recesses are respectively provided on the two swing blocks 34, and the corresponding swing block recesses on the two swing blocks 34 can be clamped together when the swing blocks 34 swing.

[0044] The board body 2 includes an inner layer and an outer layer. The shaping frame 4 is fitted on the inner layer. An outer layer through hole is provided on the outer layer corresponding to the fitting position of the shaping frame 4. A front anti-slip pad 21 and a rear anti-slip pad 22 are provided on the top surface of the outer layer. A front pad body protrusion 211 is provided in the middle of the front anti-slip pad 21. Front water guiding through grooves are distributed on the front anti-slip pad 21. Rear pad body protrusions 221 are provided in the middle and rear of the rear anti-slip pad 22. Rear water guiding through grooves are distributed on the rear anti-slip pad 22.

[0045] Method for manufacturing a fin on a surfboard, comprising the following steps,

[0046] I. Insert a shaping frame 4 into the board body 2 of the surfboard during manufacturing so that the shaping frame 4 is fitted into the board body 2;

[0047] II. Dig a groove at the top of the shaping frame 4 so that the disassembly and assembly seat 3 can be fitted into the shaping frame 4;

[0048] III. Manufacture the fin body 1 and the disassembly and assembly seat 3. Provide a socket hole 31 on the disassembly and assembly seat 3 for inserting the connecting portion 11 of the fin body 1. Provide a lock button 30 in the middle of the disassembly and assembly seat 3 that can release the connecting portion 11 when pressed and automatically reset to lock the connecting portion 1 when not pressed. Provide an installation opening 32 for the lock button 30 in the middle of the disassembly and assembly seat 3. Provide a rotating shaft 33 in the installation opening 32. The cover of the lock button 30 covers the rotating shaft 33. One end of each of the two swing blocks 34 of the lock button 30 is respectively sleeved on the rotating shaft 33, and the other ends of the two swing blocks 34 are connected together by a return spring 35. The swing blocks 34 are in contact with the cover. Provide a connecting portion recess 111 on the connecting portion 11 that can be latched with the swing blocks 34;

[0049] IV. Fit and fix the manufactured disassembly and assembly seat 3 in the shaping frame 4;

[0050] V. Insert the connecting portion 11 of the fin body 1 into the socket hole 31 so that the connecting portion recess 111 is latched with the corresponding swing block 34, thereby positioning the fin body 1, and thus completing the manufacturing of the fin on the surfboard.

[0051] The shaping frame 4 includes a bottom plate 401 and an upper housing 402. An indicating protrusion 403 for indicating the groove position is provided at the top of the upper housing 402.

[0052] Working principle: The connecting portion of the fin body is inserted into the socket hole, and the swing block is snapped into the connecting portion recess of the corresponding connecting portion, thereby fixing the fin body. When it is necessary to remove the fin body, press the lock button. The lock button makes the two swing blocks approach through the cover top plate, so that the swing blocks disengage from the corresponding connecting portion recesses, and thus the fin body can be easily removed.

Claims

1. A fin on a surfboard, comprising a fin body (1), and a connecting portion (11) capable of being connected to a board body (2) of the surfboard is arranged at the bottom of the fin body (1), and is characterized in that: A disassembly and assembly seat (3) is fixed on the plate body (2). An insertion hole (31) for inserting the connection part (11) is arranged on the disassembly and assembly seat (3). A lock button (30) is arranged in the middle of the disassembly and assembly seat (3), which can release the connection part (11) when pressed and automatically reset to lock the connection part (11) when not pressed. An installation opening (32) for the lock button (30) is arranged in the middle of the disassembly and assembly seat (3). A rotating shaft (33) is arranged in the installation opening (32). The cover body of the lock button (30) covers the rotating shaft (33). One ends of two swing blocks (34) of the lock button (30) are respectively sleeved on the rotating shaft (33), and the other ends of the two swing blocks (34) are connected together by a return spring (35). The swing block (34) abuts against the cover body. A connection part concave part (111) that can be buckled with the swing block (34) is arranged on the connection part (11).

2. The caudal fin according to claim 1, wherein: An installation groove is arranged on the plate body (2). The disassembly and assembly seat (3) is fitted and fixed in the installation groove, and the surface of the disassembly and assembly seat (3) is flush with the bottom surface of the plate body.

3. The caudal fin according to claim 2, characterized in that: A shaping frame (4) is arranged in the installation groove. The shape of the shaping frame (4) is adapted to the shape of the disassembly and assembly seat (3), and the disassembly and assembly seat (3) is fitted in the shaping frame (4).

4. The caudal fin according to any one of claims 1 to 3, characterized in that: Inner wall convex parts (321) are symmetrically arranged on the inner wall of the installation opening (32). The rotating shaft (33) is rotatably connected to the inner wall convex parts (321). A cover body notch (301) for avoiding abutting against the inner convex part (321) is arranged at the bottom of the cover body.

5. The caudal fin according to claim 4, characterized in that: A cover body top plate (302) for abutting against the swing block (34) is arranged at the bottom of the cover body. The end face of the cover body top plate (302) is an inclined surface that can be fitted with the swing block (34).

6. The caudal fin according to claim 5, characterized in that: Swing block convex columns (341) are respectively arranged at the bottoms of the two swing blocks (34). The two ends of the return spring (35) are respectively sleeved on the corresponding swing block convex columns (341). A convex part groove (322) for accommodating the swing convex column (341) and the return spring (35) is arranged at the bottom of the inner wall convex part (321). A gap is left between the surface of the convex part groove (322) and the outer wall of the return spring (35). Swing block concave parts are respectively arranged on the two swing blocks (34), and the corresponding swing block concave parts can be clamped together when the two swing blocks (34) swing.

7. The caudal fin according to claim 3, characterized in that: The plate body (2) includes an inner layer and an outer layer. The shaping frame (4) is fitted on the inner layer. An outer layer through hole is arranged on the outer layer corresponding to the fitting position of the shaping frame (4). A front anti-slip pad (21) and a rear anti-slip pad (22) are arranged on the top surface of the outer layer. A front pad body protrusion (211) is arranged in the middle of the front anti-slip pad (21). Front water guiding through grooves are distributed on the front anti-slip pad (21). Rear pad body protrusions (221) are arranged in the middle and at the rear of the rear anti-slip pad (22). Rear water guiding through grooves are distributed on the rear anti-slip pad (22).

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