Quickly detachable tail fin device

Abstract

Disclosed is a quickly detachable tail fin device, comprising a base and a tail fin detachably fitted to the base. At a position along the tail width on the tail fail, an inserting plate extending in the same direction as the fin width is formed; a limiting protrusion protruding outward is formed on the sidewall of the tail fin close to one end of the inserting plate; a detachable snap-fit part is disposed on the other end of the inserting plate, and a snap-fit mechanism is movably mounted in the detachable snap-fit part; the base comprises a limiting member; a segmented inserting groove adapted to the inserting plate is formed in the limiting member; a spacing section is formed in the middle of the segmented inserting groove; and a slideway adapted to the limiting protrusion is formed in the inner sidewall of the segmented inserting groove. According to the present invention, the base and the tail fin are connected and fixed by means of a slidable connection and a snap fit, greatly facilitating disassembly and assembly of the base and the tail fin, facilitating transportation, and allowing a user to fix the tail fin without using a limiting member; moreover, the user can change the model of the tail fin according to own preferences, greatly improving the user experience.

Description

A quickly detachable tail fin device Technical Field

[0001] The present invention relates to a tail fin device, in particular to a quickly detachable tail fin device. Background Art

[0002] With the progress of our society and the development of science and technology, the living standards of our people are constantly improving, and more and more people like water sports as a form of entertainment and fitness. With the spread of the Internet, the audience for water-based passenger vehicles such as surfboards, paddleboards, and rowboats is increasing.

[0003] To facilitate transportation, save transportation costs, and facilitate replacement, many watercraft maneuvers on the market feature detachable tail fins. This allows for easy replacement if a broken tail fin becomes damaged. Currently, common tail fin devices on the market include a base and a tail fin. The base has a central slot for mounting the tail fin, the tail fin has a socket, and the base has a retaining groove corresponding to the socket. Within the retaining groove is a retaining member that extends through the socket, completely securing the tail fin to the base. However, these tail fin devices are inconvenient to install and remove, requiring users to forcefully insert and remove the retaining member.

[0004] Existing designs in the field, such as those shown in Figures 5 and 6, respectively, use a matching tail fin and base. The tail fin's insertion area is equipped with a socket that corresponds to the base's slot, while the base has a central slot in the middle. The tail fin and base are connected through a laborious fitting process, and then secured to the base using a screw and gasket combination mounted on the tail fin, as shown in Figure 5. This method is inconvenient to assemble and disassemble, requiring the tail fin to be inserted into the base with considerable force, then slid into place, and then locked with screws once it is properly positioned. This is time-consuming and labor-intensive, and disassembly is equally difficult.

[0005] For example, a surfboard tail fin, disclosed in Publication (Announcement) No. CN218142019U, comprises a fin and a mounting base. The mounting base has a slot with a convex cross-section at its top. A socket is located in the middle of the narrow channel of the slot, connecting to the wide channel of the slot. The fin has an inserting portion at its bottom that can be inserted into the slot. The inserting portion extends rearward to form a locking portion. Through-holes are formed on both sides of the inserting portion's front end. Arc-shaped springs are embedded on either side of the through-holes, allowing them to slide within the slot's wide channel. The two arc-shaped springs are connected by an elastic member. The locking portion has a vertically extending strip hole, containing a bolt that can slide back and forth along the strip hole. The bolt passes through the strip hole and connects to a slider that can slide within the slot's wide channel via a threaded hole on the slider. A retaining groove is located on the end surface of the locking portion above the strip hole to limit the bolt head. Installing the fin with this solution requires careful alignment, laborious squeezing and sliding, and then locking with screws, which is time-consuming and labor-intensive, making it very inconvenient.

[0006] For example, the surfboard tail fin disclosed in Publication (Announcement) No. CN218142018U comprises a fin and a mounting base. The mounting base has a slot with a convex cross-section at the top and a socket in the middle. The fin has a plug-in portion at the bottom that can be inserted into the slot. The plug-in portion has two sliding shafts on either side of the front end that slide within the slot's wide channel. The plug-in portion extends rearward to form a locking portion. An angle adjustment member is located in the middle of the plug-in portion. A mounting nut is slidably connected within the slot's wide channel. The locking portion has a strip-shaped hole, which houses a mounting bolt that can slide back and forth along the hole. The end surface of the locking portion above the strip-shaped hole has several retaining grooves that position the mounting bolt heads. The mounting bolts pass through the strip-shaped holes below the various retaining grooves and engage with the mounting nuts in the slots. Installing the fin with this solution also requires careful alignment with the mounting base, laborious squeezing, sliding the fin into the designated position, and then locking it with screws, which is time-consuming, labor-intensive, and inconvenient. Summary of the Invention

[0007] In order to solve the deficiencies of the above-mentioned technology, the present invention provides a quickly detachable tail fin device.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is: a quickly detachable tail fin device, comprising a base and a tail fin detachably matched therewith;

[0009] A plug-in plate extending in the same direction as the fin width is formed at the fin width position of the tail fin, and a restriction protrusion protruding outward is formed on the side wall near one end of the plug-in plate. A disassembly clamping portion is provided at the other end of the plug-in plate, and a clamping mechanism is movably installed in the disassembly clamping portion.

[0010] The base includes a limiting member, which is provided with a segmented slot adapted to the plug board, a spacing section is formed in the middle of the segmented slot, and a slideway adapted to the limiting protrusion is provided on the inner side wall of the segmented slot.

[0011] Furthermore, the diameter of the limiting protrusion is adapted to the width of the slideway, the protruding thickness of the limiting protrusion is adapted to the depth of the slideway, and the limiting protrusion is implemented in a manner of sliding in the slideway under the action of external force.

[0012] Furthermore, a mounting window is recessed on the surface of the disassembly clamping portion, and the surface of the mounting window is covered with a packaging plate detachably connected to the disassembly clamping portion. The mounting window is implemented in a manner to limit the clamping mechanism within the disassembly clamping portion.

[0013] Furthermore, the disassembly clamping portion is provided with an installation groove, an avoidance groove provided in the normal direction of the installation groove and connected thereto, and an outwardly extending opening on the side of the installation groove close to the end of the plug board and connected to the outside world.

[0014] Furthermore, the clamping mechanism includes an integrally formed buckle head, a neck, a guide body, and a clamping joint located at one end of the guide body.

[0015] Furthermore, the neck is fitted in the avoidance slot, the guide body is fitted in the installation slot, and the card connector is connected through the outwardly extending opening.

[0016] Furthermore, the maximum length of the installation groove is longer than the maximum length of the guide body, and the maximum width of the avoidance groove is wider than the maximum width of the neck.

[0017] Furthermore, an adapter card connector is provided at the end of the segmented slot for engaging and connecting with a card slot.

[0018] Furthermore, the base also includes an extended skirt.

[0019] The present invention discloses a quickly detachable tail fin device, in which the base and the tail fin are connected and fixed by means of a sliding connection and a snap buckle. Combined with a unique interval segment design, the disassembly and assembly of the base and the tail fin is greatly facilitated. The disassembled base and tail fin are convenient for transportation, and the user does not need to use limiting parts such as bolts and gaskets to fix the tail fin, which further facilitates disassembly and assembly, and the tail fin model can be replaced according to one's own preferences, thereby greatly improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is an exploded view of the tail fin of the present invention.

[0021] FIG2 is a schematic structural diagram of a disassembly clamping portion of the present invention.

[0022] FIG3 is a schematic structural diagram of the base of the present invention.

[0023] FIG4 is a schematic structural diagram of the clamping mechanism of the present invention.

[0024] FIG5 is a schematic diagram of a tail fin in the prior art.

[0025] FIG6 is a schematic diagram of a fixing seat in the prior art.

[0026] In the figure: 10, tail fin; 11, fin; 12, plug plate; 13, restriction protrusion; 14, disassembly of the clamping part; 15, installation of the window; 16, packaging plate; 17, installation slot; 18, avoidance slot; 19, extended opening;

[0027] 20. Base; 21. Limiting piece; 22. Segmented slot; 23. Spacer; 24. Slide; 25. Card slot; 26. Extended skirt;

[0028] 30. Snap-fit ​​mechanism; 31. Buckle; 32. Neck; 33. Guide body; 34. Snap-fit ​​joint. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] As shown in Figures 1-4 , this embodiment relates to a quickly detachable tail fin device, which includes a base 20 and a tail fin 10 detachably engaged therewith.

[0031] In this embodiment, a plug plate 12 is formed at the fin width position of the tail fin 10 and extends in the same direction as the fin width. This arrangement makes the installation adaptability of the tail fin 10 stronger and more stable. A travel restriction protrusion 13 is formed on the side wall near one end of the plug plate 12. A detachable clamping portion 14 is provided at the other end of the plug plate 12. A clamping mechanism 30 is movably installed in the detachable clamping portion 14.

[0032] The base 20 includes a limiting member 21, which is provided with a segmented slot 22 adapted to the plug-in plate 12, a spacing section 23 is formed in the middle of the segmented slot 22, and a slide 24 adapted to the limiting protrusion 13 is provided on the inner side wall of the segmented slot 22. Compared with the traditional existing technology shown in Figures 5-6, especially the innovative addition of the spacing section 23 in the fixing seat shown in Figure 6, it is more convenient to install the tail fin 10.

[0033] Preferably, the diameter of the limiting protrusion 13 is adapted to the opening width of the slide 24, and the protruding thickness of the limiting protrusion 13 is adapted to the opening depth of the slide 24. The limiting protrusion 13 is implemented in a manner of sliding in the slide 24 under the action of external force. Through the cooperation between the limiting protrusion 13 and the slide 24, the tail fin 10 and the base 20 are connected in a sliding in and out manner, and in this process, the limiting protrusion 13 also provides an anti-falling connection effect for the tail fin 10, so that the tail fin 10 and the base 20 have a preliminary connection relationship.

[0034] Preferably, a mounting window 15 is recessed on the surface of the disassembly clamping portion 14, and the surface of the mounting window 15 is covered with a packaging plate 16 detachably connected to the disassembly clamping portion 14. The mounting window 15 is implemented in a manner of limiting the clamping mechanism 30 in the disassembly clamping portion 14.

[0035] Correspondingly, the disassembly clamping portion 14 has an installation slot 17 , an avoidance slot 18 in the normal direction of the installation slot 17 and in communication with the installation slot 17 , and an outwardly extending opening 19 in communication with the outside world on the side of the installation slot 17 near the end of the plug board 12 .

[0036] Preferably, the clamping mechanism 30 includes an integrally formed buckle head 31, a neck 32, a guide body 33 and a clamping joint 34 located at one end of the guide body 33. When the operator applies force to the buckle head 31 and moves it, the clamping mechanism 30 moves as a whole.

[0037] The lock 31 of the embodiment of the present invention is a kind of lock 31 that is fixed on the workbench 18, and the lock 31 of the embodiment of the present invention is a kind of lock 31 that is fixed on the workbench 18, and the lock 31 of the embodiment of the present invention is a kind of lock 31 that is fixed on the workbench 18, and the lock 31 of the embodiment of the present invention is a kind of lock 31 that is fixed on the workbench 18, and the lock 31 of the embodiment of the present invention is a kind of lock 31 that is fixed on the workbench 18, and the lock 31 of the embodiment of the present invention is a kind of lock 31 that is fixed on the workbench 18

[0038] On this basis, precisely because the maximum length of the mounting groove 17 is longer than the maximum length of the guide body 33, in order to make the clamping mechanism 30 automatically reset after being toggled, an elastic element is installed between the guide body 33 and the groove end of the closed end of the mounting groove 17. The material of the elastic element can be selected according to actual production, for example: rubber. When the elastic element is arranged, it will provide an elastic thrust to the guide body 33. Then, the initial state of the clamping mechanism 30 in the disassembly of the clamping portion 14 is that the clamping joint 34 extends outward in the extending opening 19.

[0039] Preferably, an adapter card connector 34 is provided at the end of the segmented slot 22 to engage with the card slot 25. The card connector 34 extending outward from the extending opening 19 in the initial state is engaged in the card slot 25 when the tail fin 10 and the base 20 are assembled, thereby completing the final fastening installation of the tail fin 10 and the base 20.

[0040] In addition, the base 20 includes an outwardly extending skirt 26 .

[0041] The installation / disassembly principles of this embodiment are as follows:

[0042] The limiting protrusion 13 of the tail fin 10 and the end of the plug plate 12 on one side are slid from the position of the interval section 23 along the slide 24 into the segmented slot 22. During the sliding process, the end of the tail fin 10 with the disassembly clamping portion 14 is pressed down along the notch position of the segmented slot 22 on its corresponding side. When the limiting protrusion 13 slides to the end of the slide 24, force is applied to press the clamping joint 34 down to engage it in the clamping slot 25, thereby completing the installation of the tail fin 10 and the base 20.

[0043] During disassembly, force is applied to the buckle head 31 to push it toward the side away from the card slot 25, and the card connector 34 is retracted into the installation slot 17 along the extended opening 19. The engagement between the card connector 34 and the card slot 25 is removed. At the same time, the tail fin 10 on that side is pulled out of the segmented slot 22, and then the limiting protrusion 13 on the other side of the tail fin 10 is slid out along the slide 24.

[0044] In this way, the quickly detachable tail fin device disclosed by the present invention has a base and a tail fin connected and fixed by a sliding connection and a snap buckle. Combined with the unique spacer design, it greatly facilitates the disassembly and assembly of the base and the tail fin. The disassembled base and tail fin are convenient for transportation, and the user does not need to use limiters such as bolts and gaskets to fix the tail fin, which further facilitates disassembly and assembly, and the tail fin model can be replaced according to one's own preferences, which greatly improves the user experience.

[0045] The above embodiments are not limitations of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A quickly detachable tail fin device, characterized in that: It comprises a base (20) and a tail fin (10) detachably matched therewith; The tail fin (10) is formed with a plug plate (12) extending in the same direction as the fin width at the fin width position, a limiting protrusion (13) protruding outward is formed on the side wall near one end of the plug plate (12), and a disassembly clamping portion (14) is arranged at the other end of the plug plate (12), and a clamping mechanism (30) is movably installed in the disassembly clamping portion (14); The base (20) comprises a limiting member (21), the limiting member (21) is provided with a segmented slot (22) adapted to the plug plate (12), a spacing section (23) is formed in the middle of the segmented slot (22), and a slideway (24) adapted to the limiting protrusion (13) is provided on the inner side wall of the segmented slot (22).

2. The quickly detachable tail fin device according to claim 1, characterized in that: The diameter of the limiting protrusion (13) is matched to the opening width of the slideway (24), the protruding thickness of the limiting protrusion (13) is matched to the opening depth of the slideway (24), and the limiting protrusion (13) is implemented in a manner of sliding in the slideway (24) under the action of an external force.

3. The quickly detachable tail fin device according to claim 1, characterized in that: The surface of the disassembly clamping portion (14) is recessed with a layer of installation window (15), and the surface of the installation window (15) is covered with a packaging plate (16) that is detachably connected to the disassembly clamping portion (14). The installation window (15) is implemented in a manner to limit the clamping mechanism (30) in the disassembly clamping portion (14).

4. The quickly detachable tail fin device according to claim 1, characterized in that: The disassembly clamping portion (14) is provided with a mounting groove (17) on its inner side, an avoidance groove (18) provided in a normal direction of the mounting groove (17) and connected thereto, and an outwardly extending opening (19) on a side of the mounting groove (17) close to an end of the plug board (12) and connected to the outside.

5. The quickly detachable tail fin device according to claim 4, characterized in that: The clamping mechanism (30) comprises an integrally formed buckle head (31), a neck (32), a guide body (33), and a clamping joint (34) located at one end of the guide body (33).

6. The quickly detachable tail fin device according to claim 5, characterized in that: The neck (32) is fitted in the avoidance slot (18), the guide body (33) is fitted in the installation slot (17), and the clamping joint (34) is connected through the extended opening (19).

7. The quickly detachable tail fin device according to claim 6, characterized in that: The maximum length of the installation groove (17) is longer than the maximum length of the guide body (33), and the maximum width of the avoidance groove (18) is wider than the maximum width of the neck (32).

8. The quickly detachable tail fin device according to claim 5, characterized in that: An adapter card connector (34) is provided at the end of the segmented slot (22) to engage with the card slot (25).

9. The quickly detachable tail fin device according to claim 1, characterized in that: The base (20) further comprises an extended skirt (26).

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