Quick-release structure of tail wing of fixed-wing model airplane

By employing a quick-connect mechanism on the tail fin of a fixed-wing model aircraft, utilizing a V-shaped structure and a pull ring design for hand-tightening screws, the problems of time-consuming, cumbersome, and incorrect assembly associated with traditional disassembly methods are solved, enabling rapid installation and disassembly and improving the user experience.

CN224321011UActive Publication Date: 2026-06-05SHANGHAI SIDA OSHENG AVIATION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI SIDA OSHENG AVIATION TECH CO LTD
Filing Date
2025-07-10
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Traditional methods for disassembling the tail fin of fixed-wing model aircraft are time-consuming, cumbersome, and prone to incorrect assembly; existing technologies lack effective solutions.

Method used

The system employs a quick-connect mechanism, including a front mounting bracket for the tail wing and a hand-tightening screw. Combined with a V-shaped structure and a positioning mounting groove, it enables quick installation and removal of the tail wing. The hand-tightening screw has a pull ring at the end for easy operation.

Benefits of technology

It enables quick installation and removal of the tail wing, reduces the loss of parts, prevents users from installing it incorrectly, improves user experience, and maintains an aesthetically pleasing appearance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fixed wing model tail wing quick release structure, including fuselage and tail wing subassembly, and be used for connecting quick connecting mechanism of fuselage with tail wing subassembly, tail wing subassembly includes left tail wing and right tail wing, quick connecting mechanism includes the tail wing front fixed part no.
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Description

Technical Field

[0001] This utility model relates to the field of fixed-wing model aircraft technology, and more specifically, to a quick-release structure for the tail fin of a fixed-wing model aircraft. Background Technology

[0002] Fixed-wing model aircraft are similar to airplanes in appearance and motion principle. They are also composed of components such as fuselage, wings, and tail. They are mostly used for scientific research, entertainment, and toys, and are very popular. They have become a commodity with a certain market size. Fixed-wing model aircraft need to have their tails disassembled for easy transportation when leaving the factory or flying. The traditional design method is to fix them with screws, which requires individual packaging. If there are multiple different screws, customers have to check the installation position one by one after receiving the aircraft. This method is very time-consuming, cumbersome, and prone to misinstallation, making it inconvenient to install.

[0003] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes a quick-release structure for the tail fin of a fixed-wing model aircraft to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] A quick-release structure for the tail fin of a fixed-wing model aircraft includes a fuselage and a tail fin assembly, and a quick-connect mechanism for connecting the fuselage and the tail fin assembly. The tail fin assembly includes a left tail fin and a right tail fin. The quick-connect mechanism includes a front fixing member of the tail fin located at the top of the left tail fin and the right tail fin. The top of the left tail fin and the right tail fin have slots that are adapted to the front fixing member of the tail fin. The two sides of the front fixing member of the tail fin are fitted with the top of the left tail fin and the right tail fin in a V-shaped structure. The top of the fuselage has a positioning mounting slot for mounting the tail fin assembly and the front fixing member of the tail fin.

[0007] Preferably, the bottom ends of the left and right tail wings are provided with positioning mounting blocks that can be inserted into the positioning mounting slots.

[0008] Preferably, the positioning mounting groove is provided with a hand-tightening screw that penetrates the fuselage, and the left tail fin and the right tail fin are provided with semi-circular arc grooves on their respective sides, and the two sets of arc grooves are spliced ​​together to form a circular structure.

[0009] Preferably, the bottom end of the first tail fin fixing component is provided with an insert nut that penetrates the two sets of arc-shaped grooves and is compatible with the hand-tightening screw.

[0010] Preferably, the machine body is provided with a skid for connecting the hand-tightening screw, and the bottom end of the hand-tightening screw is provided with a pull ring that can be movably connected.

[0011] Preferably, the left and right tail wings are provided with tail wing reinforcing ribs.

[0012] Preferably, the left side of the positioning and mounting groove is fitted with a second front tail wing fixing member, the side of the second front tail wing fixing member has symmetrically arranged locking slots, and the left side of the first front tail wing fixing member has a locking post that matches the two sets of locking slots.

[0013] The beneficial effects of this utility model are as follows: This V-shaped tail fin can be quickly installed and removed, making it suitable for quick replacement in the field without any tools. The hand-tightening screw can be easily installed inside the fuselage, reducing the loss of parts. Most existing tail fin quick-release mechanisms are individual hand-tightening screws that need to be packaged separately. If there are multiple different screws, customers still need to check the installation position one by one after receiving the product. This structure can install the hand-tightening screw at the factory, which can effectively prevent users from installing it incorrectly. The hand-tightening screw has a pull ring at the end. When the hand-tightening screw needs to be tightened, the pull ring can be rotated to operate. After use, the pull ring can be retracted, which is convenient for users to operate and perfectly avoids the pull ring being exposed, thus affecting the appearance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of a quick-release tail fin structure for a fixed-wing model aircraft according to an embodiment of the present utility model;

[0016] Figure 2 This is an exploded view of a quick-release tail fin structure for a fixed-wing model aircraft according to an embodiment of the present utility model;

[0017] Figure 3 This is one of the assembly state diagrams of a quick-release tail fin structure for a fixed-wing model aircraft according to an embodiment of the present utility model;

[0018] Figure 4 This is the second schematic diagram of the assembly state of a quick-release tail fin structure for a fixed-wing model aircraft according to an embodiment of the present utility model;

[0019] Figure 5 This is the third schematic diagram of the assembly state of a quick-release tail fin structure for a fixed-wing model aircraft according to an embodiment of the present utility model.

[0020] In the picture:

[0021] 1. Fuselage; 2. Tail assembly; 3. Left tail fin; 4. Right tail fin; 6. Tail fin front fastener one; 7. Positioning mounting slot; 8. Positioning mounting block; 9. Tightening screw; 10. Arc groove; 11. Insert nut; 12. Skid; 13. Pull ring; 14. Tail fin reinforcing rib; 15. Tail fin front fastener two; 16. Slot; 17. Slipper. Detailed Implementation

[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0023] According to an embodiment of the present invention, a quick-release structure for the tail fin of a fixed-wing model aircraft is provided.

[0024] Example 1:

[0025] like Figure 1-5 As shown, the quick-release structure for the tail fin of a fixed-wing model aircraft according to an embodiment of the present invention includes a fuselage 1 and a tail fin assembly 2, and a quick-connect mechanism for connecting the fuselage 1 and the tail fin assembly 2. The tail fin assembly 2 includes a left tail fin 3 and a right tail fin 4. The quick-connect mechanism includes a front tail fin fixing member 6 located on the top of the left tail fin 3 and the right tail fin 4. The top of the left tail fin 3 and the right tail fin 4 are provided with slots that are adapted to the front tail fin fixing member 6. The two sides of the front tail fin fixing member 6 are fitted with the top of the left tail fin 3 and the right tail fin 4 in a V-shaped structure. The top of the fuselage 1 is provided with a positioning mounting slot 7 for mounting the tail fin assembly 2 and the front tail fin fixing member 6.

[0026] Example 2:

[0027] like Figure 1-5 As shown, the bottom ends of the left tail wing 3 and the right tail wing 4 are provided with positioning mounting blocks 8 that are inserted into the positioning mounting groove 7. The positioning mounting groove 7 is provided with a hand-tightening screw 9 that penetrates the fuselage 1 vertically. The left tail wing 3 and the right tail wing 4 are each provided with a semi-circular arc groove 10 on the side that is close to each other. The two sets of arc grooves 10 are spliced ​​together to form a circular structure. The bottom end of the tail wing front fixing part 6 is provided with an insert nut 11 that penetrates the two sets of arc grooves 10 and is adapted to the hand-tightening screw 9.

[0028] Example 3:

[0029] like Figure 1-5 As shown, the fuselage 1 is provided with a skid 12 for connecting the hand-tightening screw 9. The bottom end of the hand-tightening screw 9 is provided with a pull ring 13 that is movably connected. The left tail wing 3 and the right tail wing 4 are provided with tail wing reinforcing ribs 14. The left side of the positioning mounting groove 7 is engaged with a second tail wing fixing part 15. The side of the second tail wing fixing part 15 is provided with symmetrically arranged slots 16. The left side of the first tail wing fixing part 6 is provided with a locking post 17 that is adapted to the two sets of slots 16.

[0030] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0031] In practical applications, the left tail wing 3 and right tail wing 4 are glued together. The insert nut 11 and the front fixing part 6 of the tail wing are integrated and will be glued together with the left and right tail wings. Then, the tail wing reinforcing rib 14 is glued on. The hand-tightening screw 9 can be easily installed inside the fuselage 1, reducing the loss of parts. Most existing tail wing quick-release mechanisms use a single hand-tightening screw, requiring separate packaging. If there are multiple different screws, customers need to check the installation position one by one after receiving the package. This structure allows the hand-tightening screw 9 to be installed at the factory, effectively preventing incorrect installation by the user. The hand-tightening screw 9 has a pull ring 13 at the end. Rotating the pull ring 13 allows operation when the hand-tightening screw 9 needs to be tightened. After use, the pull ring 13 is retracted, which is convenient for user operation but avoids the unsightly exposed pull ring 13.

[0032] In summary, with the help of the above-mentioned technical solution of this utility model, the hand-tightening screw 9 can be easily installed inside the body 1, which can reduce the loss of parts. Most of the existing tail wing quick-release mechanisms are individual hand-tightening screws, which need to be packaged separately. If there are multiple different screws, the customer still needs to check the installation position one by one after receiving them. This structure can install the hand-tightening screw 9 at the factory, which can effectively prevent users from installing it incorrectly. The hand-tightening screw 9 has a pull ring 13 at the tail. When the hand-tightening screw 9 needs to be tightened, the pull ring 13 can be rotated to operate. After use, the pull ring 13 is retracted, which is convenient for users to operate and perfectly avoids the pull ring 13 being exposed, thus affecting the appearance.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-release structure for the tail fin of a fixed-wing model aircraft, characterized in that, The fuselage (1) and tail assembly (2) are included, as well as a quick-connect mechanism for connecting the fuselage (1) and the tail assembly (2). The tail assembly (2) includes a left tail wing (3) and a right tail wing (4). The quick-connect mechanism includes a tail wing front fixing member (6) located on the top of the left tail wing (3) and the right tail wing (4). The top of the left tail wing (3) and the right tail wing (4) are provided with a slot that is adapted to the tail wing front fixing member (6). The two sides of the tail wing front fixing member (6) are fitted with the top of the left tail wing (3) and the right tail wing (4) in a V-shaped structure. The top of the fuselage (1) is provided with a positioning mounting slot (7) for installing the tail assembly (2) and the tail wing front fixing member (6).

2. The quick-release structure for the tail fin of a fixed-wing model aircraft according to claim 1, characterized in that, The bottom ends of the left tail fin (3) and the right tail fin (4) are provided with positioning mounting blocks (8) that are inserted into the positioning mounting groove (7).

3. The quick-release structure for the tail fin of a fixed-wing model aircraft according to claim 2, characterized in that, The positioning mounting groove (7) is vertically provided with a hand-tightening screw (9) that penetrates the fuselage (1). The left tail wing (3) and the right tail wing (4) are provided with semi-circular arc grooves (10) on the side that are close to each other. The two sets of arc grooves (10) are spliced ​​together to form a circular structure.

4. The quick-release structure for the tail fin of a fixed-wing model aircraft according to claim 3, characterized in that, The bottom end of the front fixing part (6) of the tail wing is provided with an insert nut (11) that penetrates the two sets of arc grooves (10) and is compatible with the hand screw (9).

5. The quick-release structure for the tail fin of a fixed-wing model aircraft according to claim 4, characterized in that, The body (1) is provided with a skid (12) for connecting the hand-tightening screw (9), and the bottom end of the hand-tightening screw (9) is provided with a pull ring (13) for movable connection.

6. The quick-release structure for the tail fin of a fixed-wing model aircraft according to claim 1, characterized in that, The left tail fin (3) and the right tail fin (4) are provided with tail fin reinforcing ribs (14).

7. The quick-release structure for the tail fin of a fixed-wing model aircraft according to claim 1, characterized in that, The left side of the positioning and mounting groove (7) is engaged with the second tail wing front fixing part (15). The side of the second tail wing front fixing part (15) is provided with symmetrically arranged slots (16). The left side of the first tail wing front fixing part (6) is provided with a locking post (17) that is compatible with the two sets of slots (16).