Model rocket fin structure

Abstract

This utility model discloses a tail fin structure for a model rocket, relating to the field of rocket model technology. It includes multiple tail fins and a tail fin base, with the tail fins and tail fin base forming an integrated structure fitted onto the model rocket. This utility model, through its integrated design of the tail fins and tail fin base, avoids positional errors and imbalances caused by separate installations, ensuring the accuracy of the tail fin installation positions and improving the overall stability of the tail fin system. The deflection angle design of the tail fins relative to the rocket's axis of rotation causes the model rocket to rotate around its own axis during flight, generating a gyroscopic effect, effectively reducing flight deviations and significantly improving the flight stability and accuracy of the model rocket. The sleeve-type tail fin base and the rocket body's adaptability structure (such as anti-slip textures) enhance the connection tightness. Furthermore, the entire structure is made of lightweight materials, is simple to construct, easy to install, and highly adaptable, making it suitable for scenarios such as model rocket target competitions in youth science and technology activities.

Description

Technical Field

[0001] This utility model relates to the field of rocket model technology, specifically to a tail fin structure for a model rocket. Background Technology

[0002] In model rocket competitions for youth science and technology activities, the flight stability of model rockets is one of the key factors affecting the competition results. However, the tail fin structure of traditional model rockets in the current technology has obvious defects and is difficult to meet the requirements of the competition for flight stability.

[0003] Specifically, traditional model rockets often use a split structure with straight fins for their tail fins. This design results in the model rocket lacking rotation around its own axis during flight, making it prone to yaw and deviation from the intended flight path. Furthermore, due to the split installation method, positional errors can easily occur during the installation of each tail fin, making it difficult to ensure the overall balance of the tail fin system and further exacerbating flight instability.

[0004] The aforementioned defects in the tail fin structure make it difficult for traditional model rockets to fly stably and accurately hit targets in competitions such as target shooting, which require high flight precision. Therefore, it is urgent to improve the flight stability of model rockets through structural innovation to meet the needs of model rocket competitions in youth science and technology activities. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a tail fin structure for a model rocket to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tail fin structure for a model rocket, comprising multiple tail fins and a tail fin base, wherein the tail fins and the tail fin base are integrally mounted on the model rocket. This integral structure enables the model rocket to rotate around its own axis during propulsion and flight to generate a gyroscopic effect, reducing flight deviation. At the same time, it ensures the accuracy of the installation position of each tail fin, avoiding positional errors and imbalance deviations caused by separate installation, thereby improving the flight stability of the model rocket. Each set of tail fins has a deflection angle of 0.5 to 15 degrees relative to the axis of the model rocket, and multiple sets of tail fins are distributed in an equidistant ring on the tail fin base. The tail fin base is a sleeve-type structure, and its inner wall shape and size match the model rocket, so it can be tightly fitted to the tail of the model rocket. The inner wall of the tail fin base has anti-slip textures, and the tail fin base is made of lightweight materials.

[0007] In summary, the present invention has the following main advantages: This invention, through its integrated design of the tail fin and tail fin base, avoids the positional errors and imbalances caused by traditional separate installations, ensuring the accuracy of the tail fin installation positions and improving the overall stability of the tail fin system. The deflection angle design of the tail fin relative to the rocket's axis of rotation enables the model rocket to rotate around its own axis during flight, generating a gyroscopic effect, effectively reducing flight deviations and significantly improving the flight stability and accuracy of the model rocket. The sleeve-type tail fin base and the rocket body's fitting structure (such as anti-slip textures) enhance the tightness of the connection. Furthermore, the entire structure is made of lightweight materials, is simple to construct, easy to install, and highly adaptable, making it suitable for scenarios such as model rocket target competitions in youth science and technology activities. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the installation state of Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 3 This is a side view of Embodiment 1 of the present utility model; Figure 4 This is a top view of Embodiment 1 of the present utility model; Figure 5 This is a first-view installation state schematic diagram of Embodiment 2 of this utility model; Figure 6 This is a schematic diagram of the second-view installation state of Embodiment 2 of this utility model.

[0009] In the picture: 1. Tail fin; 2. Tail fin base; 3. Model rocket. Detailed Implementation

[0010] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0011] The embodiments of this utility model will be described below based on its overall structure.

[0012] Example 1 like Figure 1-4 As shown, this applies to the straight section of the cylindrical part of model rocket 3 that is far from the bottle opening.

[0013] Structural composition Tail fin 1: It consists of multiple tail fins 1, which are integrated with the tail fin base 2. The tail fins 1 are distributed on the tail fin base 2 in an equidistant ring arrangement. Each tail fin 1 has a certain deflection angle relative to the axis of the model rocket 3.

[0014] Tail fin base 2: It is a sleeve structure whose shape and size are adapted to the cylindrical part of the model rocket 3, and can be tightly fitted into the cylindrical part. The inner wall is provided with anti-slip texture to enhance the connection stability with the rocket body.

[0015] Installation method Insert the tail fin base 2 onto the cylindrical part of the model rocket 3, adjust it to the appropriate position, and then fix it with glue or tape to ensure that the tail fin 1 is firmly attached to the cylindrical part of the rocket body without any looseness.

[0016] Working principle When the model rocket is launched, the tail fin 1, due to its deflection angle design, causes the rocket to rotate around its own axis under the action of airflow, generating a gyroscopic effect, reducing yaw during flight and improving flight stability.

[0017] Example 2 like Figure 5-6 As shown, this is applicable to the conical section of the model rocket 3 near the bottle mouth, where the front end of the rocket body transitions to the bottle mouth.

[0018] Tail fin 1: It consists of multiple tail fins 1, which are integrated with the tail fin base 2. The tail fins 1 are distributed in an equidistant ring on the tail fin base 2. Each tail fin 1 has a certain deflection angle relative to the axis of the model rocket 3. The overall structure is adapted to the spatial characteristics of the conical part.

[0019] Tail fin base 2: A sleeve structure adapted to the conical part, its inner wall shape matches the conical part of the model rocket 3 near the bottle mouth, and can be tightly fitted into the conical part. The inner wall is provided with anti-slip texture to enhance the connection effect.

[0020] Installation method Insert the tail fin base 2 into the conical part near the bottle mouth of the model rocket 3 from the bottle mouth direction. After adjusting the position, fix it with glue or tape to ensure that the tail fin 1 fits snugly against the conical part and is installed firmly.

[0021] Working principle Consistent with the principle of Example 1, the deflection angle of the tail fin 1 causes the model rocket to rotate during flight, forming a gyro effect and reducing flight deviation. Since it is installed in the conical part near the bottle mouth, it can adapt to the structural characteristics of this part and can also effectively improve the flight stability of the model rocket.

[0022] Core differences in implementation examples The installation positions are different: in Example 1, the tail fin 1 is installed on the cylindrical part of the model rocket 3, while in Example 2, the tail fin 1 is installed on the conical part near the bottle mouth. The tail fin base 2 has different structural adaptability: the tail fin base 2 in Embodiment 1 is a sleeve structure adapted to the cylindrical part, while the tail fin base 2 in Embodiment 2 is a sleeve structure adapted to the conical part, so as to fit different parts of the rocket body respectively.

[0023] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A tail fin structure for a model rocket, characterized in that: It includes multiple tail fins (1) and a tail fin base (2). The tail fins (1) and the tail fin base (2) are an integral structure mounted on the model rocket (3). This integral structure can cause the model rocket (3) to rotate around its own axis during propulsion and flight to generate a gyro effect, reduce flight deviation, and at the same time ensure the accuracy of the installation position of each tail fin (1), avoid positional errors and imbalance deviations caused by separate installation, thereby improving the flight stability of the model rocket.

2. The tail fin structure of the model rocket according to claim 1, characterized in that: Each tail fin (1) has a deflection angle of 0.5 to 15 degrees relative to the axis of the model rocket (3).

3. The tail fin structure of the model rocket according to claim 1, characterized in that: The tail fin base (2) is a sleeve structure, and its inner wall shape and size match the model rocket (3), so that it can be tightly fitted onto the tail of the model rocket (3).

4. The model rocket fin structure of claim 3, wherein: The inner wall of the tail fin base (2) is provided with anti-slip texture.

5. The model rocket fin structure of claim 1, wherein: Multiple sets of tail fins (1) are distributed in an equidistant ring on the tail fin base (2).

6. The model rocket fin structure of claim 1, wherein: The tail fin base (2) is made of lightweight material.

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