Anti-torsion racket and middle tube thereof

Abstract

The utility model discloses an anti-torsion racket and a middle tube thereof, the middle tube comprises a tube body, an axially extending cavity is arranged in the tube body, the tube body is made of carbon fiber materials, at least one first carbon fiber rope is embedded, molded and fixed in the tube body, the first carbon fiber rope extends along the length direction of the tube body, and the first carbon fiber rope extends along the length direction of the tube body. The first carbon fiber rope is formed by winding and weaving at least two carbon fiber line bodies. The first carbon fiber rope is fixedly embedded in the pipe body, the second carbon fiber rope is fixedly embedded in the racket frame body, and the modulus of the carbon fiber rope is larger than that of a metal rope, so that the overall structural strength of the racket is effectively enhanced; meanwhile, the friction force of the internal structure of the racket is further greatly improved, the pulling resistance is better, the overall torsion resistance of the product is improved to a greater extent compared with that of a racket with a built-in metal rope, the racket is more difficult to damage, the service life of the product is more favorably prolonged, and the use requirements are better met.

Description

Technical Field

[0001] This utility model relates to the field of sports equipment, and in particular to an anti-torsion racket and its shaft. Background Technology

[0002] Racquets (such as badminton rackets and tennis rackets) are high-power sports equipment characterized by: less material used, higher net tension on the frame, and greater deformation of the shaft upon impact. World-renowned brands in the field of high-performance badminton and tennis rackets strive for breakthroughs in manufacturing processes and structural design to lead the market.

[0003] Taking a badminton racket as an example, a badminton racket generally consists of a frame, a handle, and a shaft connecting the frame and handle. The length of a badminton racket does not exceed 68 centimeters, of which the handle and shaft length does not exceed 42 centimeters, the frame length does not exceed 25 centimeters, and the width is 20 centimeters. With the development of science and technology, rackets are developing towards lighter weight, stiffer frames, more flexible shafts, and less air resistance.

[0004] Currently, the frame and shaft of rackets have essentially the same structure, generally consisting of a single piece of carbon fiber or a layer of foam material and a carbon fiber layer covering the foam material. Typically, neither the frame nor the shaft has any internal components, resulting in weak internal friction, insufficient torsional resistance, susceptibility to damage, and a short lifespan, failing to meet usage requirements. To address this, existing technology includes rackets with built-in metal cords, which effectively solve the aforementioned problems. However, due to the relatively small modulus of the metal cord, the overall structure of the racket is not strong enough, and the internal friction cannot be effectively enhanced, leaving significant room for improvement. Therefore, it is necessary to improve current racket technology. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide an anti-torsion racket and its shaft, which can effectively solve the problems of insufficient overall structural strength and ineffective enhancement of internal friction in existing rackets.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A type of tube includes a tube body with an axially extending cavity inside the tube body. The tube body is made of carbon fiber. At least one first carbon fiber rope is embedded and fixed inside the tube body. The first carbon fiber rope extends along the length of the tube body and is formed by winding and weaving at least two carbon fiber strands.

[0008] As a preferred embodiment, the first carbon fiber rope consists of multiple ropes, which are arranged in a woven pattern around the center of the cavity.

[0009] As a preferred embodiment, the inner wall of the cavity is provided with reinforcing ribs, and the first carbon fiber rope is located in the reinforcing ribs.

[0010] An anti-torsion racket includes a frame, a handle, and a shaft. The frame and handle are positioned at opposite ends, and the front and rear ends of the shaft are fixedly connected to the frame and handle, respectively.

[0011] As a preferred embodiment, the racket frame includes a racket frame body and at least one second carbon fiber rope embedded and fixed within the racket frame body. The second carbon fiber rope extends along the length direction of the racket frame body, and the structure of the second carbon fiber rope is the same as that of the first carbon fiber rope.

[0012] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0013] By embedding and fixing at least one first carbon fiber rope inside the tube, and cooperating with embedding and fixing at least one second carbon fiber rope inside the frame, the modulus of the carbon fiber rope is larger than that of the metal rope, which effectively enhances the overall structural strength of the racket. At the same time, it also greatly improves the friction of the internal structure of the racket, making it better resistant to tension. The overall torsional performance of the product is greatly improved compared with rackets with built-in metal ropes, making it less prone to damage, extending the product's service life, and better meeting the needs of use.

[0014] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is an overall front perspective view of a preferred embodiment of the present invention;

[0016] Figure 2 This is a partial cross-sectional view of the middle tube in a preferred embodiment of this utility model;

[0017] Figure 3 This is a partial cross-sectional view of another type of central tube in a preferred embodiment of this utility model.

[0018] Explanation of reference numerals in the attached diagram:

[0019] 10. Middle tube 11. Tube body

[0020] 111. Reinforcing Rib; 12. First Carbon Fiber Rope

[0021] 121. Carbon fiber filament; 101. Cavity

[0022] 20. Frame 21. Frame body

[0023] 22. Second carbon fiber rope; 30. Handle. Detailed Implementation

[0024] Please refer to Figures 1 to 3 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a central tube 10, a frame 20, and a handle 30.

[0025] The central tube 10 includes a tube body 11, which has an axially extending cavity 101. The tube body 11 is made of carbon fiber, and at least one first carbon fiber rope 12 is embedded and fixed within the tube body 11. The first carbon fiber rope 12 extends along the length of the tube body 11 and is formed by winding and weaving at least two carbon fiber strands 121. In this embodiment, there are multiple first carbon fiber ropes 12, which are arranged in a woven pattern around the center of the cavity 101 to better increase structural strength and internal friction, resulting in better tensile and torsional resistance. Furthermore, as... Figure 3 As shown, the central tube 10 may also have a reinforcing rib 111 protruding from the inner wall of its cavity 101, and the first carbon fiber rope 12 is located in the reinforcing rib 111 to more effectively increase the overall structural strength of the central tube 10.

[0026] The frame 20 and handle 30 are arranged front and rear, respectively, and the front and rear ends of the central tube 10 are fixedly connected to the frame 20 and handle 30, respectively. Furthermore, the frame 20 includes a frame body 21 and at least one second carbon fiber rope 22 embedded and fixed within the frame body 21. The second carbon fiber rope 22 extends along the length of the frame body 21, and its structure is the same as that of the first carbon fiber rope 12; therefore, the structure of the second carbon fiber rope 22 will not be described in detail here.

[0027] The manufacturing process of this embodiment is described in detail below:

[0028] During manufacturing, firstly, multiple carbon fiber strands are rolled from uncured carbon fiber cloth. Then, the multiple carbon fiber strands are woven together to prefabricate the first carbon fiber rope 12 and the second carbon fiber rope 22. Next, the tube 11 and the frame body 21 are pre-rolled from uncured carbon fiber cloth. During the rolling process, the first carbon fiber rope 12 and the second carbon fiber rope 22 are respectively embedded into the tube 11 and the frame body 21, thus prefabricating the middle tube 10 and the frame 20. Then, the prefabricated middle tube 10 and frame 20 are connected and placed in a heating mold for heating and curing to obtain the middle tube 10 and the frame 20. Finally, the handle 30 is installed.

[0029] The key design feature of this invention is that at least one first carbon fiber rope is embedded and fixed inside the tube, and at least one second carbon fiber rope is embedded and fixed inside the frame. The modulus of the carbon fiber rope is greater than that of the metal rope, which effectively enhances the overall structural strength of the racket. At the same time, it also greatly improves the friction of the internal structure of the racket, making it more resistant to tension. The overall torsional performance of the product is significantly improved compared to rackets with built-in metal ropes, making it less prone to damage and extending the product's service life to better meet the needs of use.

[0030] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A type of central tube, comprising a tube body having an axially extending cavity within the tube body, the tube body being made of carbon fiber, characterized in that: At least one first carbon fiber rope is embedded and fixed inside the tube. The first carbon fiber rope extends along the length of the tube and is formed by winding and weaving at least two carbon fiber strands.

2. The central tube according to claim 1, characterized in that: The first carbon fiber rope consists of multiple ropes, which are arranged in a woven pattern around the center of the cavity.

3. The central tube according to claim 1, characterized in that: The cavity has reinforcing ribs protruding from its inner wall, and the first carbon fiber rope is located in the reinforcing ribs.

4. A torsion-resistant racket, characterized in that: It includes a frame, a handle, and a central tube as described in any one of claims 1-3, wherein the frame and handle are arranged at the front and rear, and the front and rear ends of the central tube are respectively fixedly connected to the frame and the handle.

5. The anti-torsion racket according to claim 4, characterized in that: The racket frame includes a racket frame body and at least one second carbon fiber rope embedded and fixed inside the racket frame body. The second carbon fiber rope extends along the length direction of the racket frame body, and the structure of the second carbon fiber rope is the same as that of the first carbon fiber rope.

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