Glass fiber reinforced plastic fishing rod with high fracture resistance

By introducing a composite structure consisting of a ring-shaped reinforcing ring, a base layer, a mesh inner layer, a mixed intermediate layer, and a fiber outer layer into the fishing rod, the problem of insufficient bending resistance of telescopic fishing rods is solved, achieving high bending resistance and wear resistance, and enhancing the overall strength and aesthetic appearance of the fishing rod.

CN224055133UActive Publication Date: 2026-03-31WEIHAI ROAD QIANXUN OUTDOOR SPORTS GOODS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing telescopic fishing rods have poor resistance to breakage, especially when facing fish with strong pulling force, they are prone to breakage and cracking at the joints between segments.

Method used

The fishing rod employs a composite structure design consisting of a ring-shaped reinforcing ring, a matrix layer, a mesh inner layer, a mixed intermediate layer, and a fiber outer layer. Combined with a gradient wall thickness and a specific material combination, including carbon fiber, Kevlar fiber, epoxy resin, and nano-silica particles, it enhances the overall strength and toughness of the fishing rod.

Benefits of technology

It significantly improves the bending resistance of fishing rods, prevents breakage, enhances the wear resistance and aesthetics of fishing rods, while reducing weight and extending service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fishing gears, and discloses a glass fiber reinforced plastic fishing rod with high fracture resistance, which comprises a telescopic fishing rod main body, annular reinforcing rings are arranged at the joints of sections of the telescopic fishing rod main body, the telescopic fishing rod main body comprises a base body layer, and a net-shaped inner layer is fixedly arranged on the outer wall of the base body layer. The outer wall of the net-shaped inner layer is fixedly provided with the mixed middle layer, the outer wall of the mixed middle layer is fixedly provided with the fiber outer layer, and the telescopic fishing rod body, the annular reinforcing ring, the base body layer, the net-shaped inner layer, the mixed middle layer and the fiber outer layer are arranged, so that the fishing rod is higher in overall strength and better in fracture resistance; the strength and the fracture resistance of the fishing rod at the joint of the sections are improved, the fishing rod is prevented from being broken due to bending in the using process, and the toughness and the tear resistance of the fishing rod are improved through the net-shaped inner layer made of the Kevlar fiber material.
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Description

Technical Field

[0001] This utility model relates to the field of fishing gear technology, and in particular to a fiberglass fishing rod with high bending resistance. Background Technology

[0002] A fishing rod is a fishing tool originally used by humans for fishing to make a living. Now it is commonly used for recreational fishing in outdoor sports, and also for some competitive fishing sports or outdoor competitions. A fishing rod is a long, thin, multi-section rod-shaped object, usually with a handle that tapers to a point towards the rear. It is used with a fishing line connected to a baited hook.

[0003] Existing telescopic fishing rods have poor overall bending resistance due to their hollow telescopic structure. They are prone to breaking when faced with fish that have strong pulling force, especially at the joints between the telescopic rod segments, where they are easily cracked and broken due to the large bending force.

[0004] Therefore, we propose a fiberglass fishing rod with high bending resistance. Utility Model Content

[0005] The present invention aims to solve the technical problems existing in the prior art and provide a fiberglass fishing rod with high bending resistance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fiberglass fishing rod with high bending resistance, comprising a telescopic fishing rod body, wherein each segment connection of the telescopic fishing rod body is provided with an annular reinforcing ring, the telescopic fishing rod body includes a base layer, a mesh inner layer is fixedly installed on the outer wall of the base layer, a mixed intermediate layer is fixedly installed on the outer wall of the mesh inner layer, and a fiber outer layer is fixedly installed on the outer wall of the mixed intermediate layer.

[0007] Preferably, the telescopic fishing rod body adopts a gradually changing wall thickness, with a reduction ratio of 1:15 from thick to thin.

[0008] Preferably, the annular reinforcing ring is made of carbon fiber with a thickness of 0.5-1mm.

[0009] Preferably, the substrate layer is a mixture of epoxy resin and nano-silica particles.

[0010] Preferably, the particle size of the nano-silica particles is 50-100 nm, and the amount of nano-silica particles added is 3%-5%.

[0011] Preferably, the inner mesh layer is made of Kevlar fiber with a mesh density of 5-8 mesh / cm. 2 .

[0012] Preferably, the material of the hybrid intermediate layer is a mixture of carbon fiber and glass fiber, with the carbon fiber and glass fiber arranged orthogonally at 0° / 90°.

[0013] Preferably, the carbon fiber accounts for 30%-40% of the mixed intermediate layer.

[0014] Preferably, the outer layer of the fiber is made of high-density glass fiber, and the fiber direction of the outer layer is spirally wound at ±45°.

[0015] This invention provides a fiberglass fishing rod with high bending resistance. It has the following beneficial effects:

[0016] 1. This fiberglass fishing rod with high bending resistance features a telescopic rod body, a ring-shaped reinforcing ring, a base layer, a mesh inner layer, a mixed intermediate layer, and a fiber outer layer. This design enhances the overall strength and bending resistance of the rod. The carbon fiber ring-shaped reinforcing ring improves the strength and bending resistance at the joints between sections, preventing breakage due to bending during use. The Kevlar fiber mesh inner layer improves the rod's toughness and tear resistance. The mixed intermediate layer, with carbon fiber and fiberglass arranged at 0° / 90° orthogonal, further enhances the rod's bending resistance and strength while reducing its weight. The high-density fiber outer layer, with fibers spirally wound at ±45°, improves the rod's wear resistance and bending resistance, while also enhancing its aesthetic appeal.

[0017] 2. This fiberglass fishing rod with high bending resistance reduces the weight of the rod by setting a telescopic rod body with a gradually changing wall thickness, while further improving the flexibility and bending resistance of the rod.

[0018] 3. This fiberglass fishing rod with high bending resistance improves the rod's hardness and wear resistance by setting a base layer of epoxy resin and nano-silica particles. The addition of nano-silica particles makes the base layer more resistant to aging and extends the rod's service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the internal structure of the telescopic fishing rod of this utility model.

[0021] Legend: 10. Telescopic fishing rod body; 11. Ring reinforcing ring; 12. Base layer; 13. Mesh inner layer; 14. Mixed intermediate layer; 15. Fiber outer layer. Detailed Implementation

[0022] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0023] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "inner," "outer," and "side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: A fiberglass fishing rod with high bending resistance, such as... Figure 1 As shown, the telescopic fishing rod body 10 includes a retractable fishing rod body 10. Each segment connection of the telescopic fishing rod body 10 is provided with an annular reinforcing ring 11. The telescopic fishing rod body 10 includes a base layer 12. A mesh inner layer 13 is fixedly installed on the outer wall of the base layer 12. A mixed intermediate layer 14 is fixedly installed on the outer wall of the mesh inner layer 13. A fiber outer layer 15 is fixedly installed on the outer wall of the mixed intermediate layer 14. By incorporating a telescopic fishing rod body 10, a ring-shaped reinforcing ring 11, a base layer 12, a mesh inner layer 13, a mixed intermediate layer 14, and a fiber outer layer 15, the overall strength of the fishing rod is increased, and its bending resistance is improved. The carbon fiber ring-shaped reinforcing ring 11 enhances the strength and bending resistance at the segment joints, preventing the rod from breaking due to bending during use. The Kevlar fiber mesh inner layer 13 improves the rod's toughness and tear resistance. The mixed intermediate layer 14, composed of carbon fiber and glass fiber, with the carbon fiber and glass fiber arranged orthogonally at 0° / 90°, further enhances the rod's bending resistance and strength while reducing its weight. The high-density glass fiber outer layer 15, with the fiber direction spirally wound at ±45°, improves the rod's wear resistance and bending resistance, while also enhancing its aesthetic appearance.

[0029] Example 2: Based on Example 1, as follows Figure 1 As shown, the telescopic fishing rod body 10 adopts a gradually changing wall thickness, with a reduction rate of 1:15 from thick to thin. The annular reinforcing ring 11 is made of carbon fiber with a thickness of 0.5-1mm. By setting the telescopic fishing rod body 10 with a gradually changing wall thickness, the weight of the fishing rod is reduced, while the flexibility and bending resistance of the fishing rod are further improved.

[0030] Example 3: Based on Examples 1 and 2, as follows... Figure 2 As shown, the substrate layer 12 is a mixture of epoxy resin and nano-silica particles, with a particle size of 50-100 nm and an addition amount of 3%-5%. The mesh inner layer 13 is made of Kevlar fiber with a mesh density of 5-8 mesh / cm. 2The intermediate layer 14 is made of a mixture of carbon fiber and glass fiber, with the carbon fiber and glass fiber arranged orthogonally at 0° / 90°. The carbon fiber accounts for 30%-40% of the intermediate layer 14. The outer fiber layer 15 is made of high-density glass fiber, with the fiber direction of 15 spirally wound at ±45°. By setting a matrix layer 12 made of a mixture of epoxy resin and nano silica particles, the hardness and wear resistance of the fishing rod are improved. The addition of nano silica particles makes the matrix layer 12 more resistant to aging and extends the service life of the fishing rod.

[0031] The working principle of this utility model:

[0032] During use, the annular reinforcing ring 11 at the segment connection of the telescopic fishing rod body 10 increases the strength of the fishing rod at the segment connection, preventing breakage due to external forces during use. Simultaneously, the fishing rod's wall thickness adopts a gradually changing design, allowing for better stress distribution under load and improving its bending resistance. The matrix layer 12 is a mixture of epoxy resin and nano-silica particles, giving the fishing rod higher hardness and wear resistance. The addition of nano-silica particles also improves the fishing rod's toughness and anti-aging properties. The mesh inner layer 13 uses Kevlar fiber, further enhancing the fishing rod's strength and wear resistance. The mixed intermediate layer 14 uses a mixture of carbon fiber and glass fiber, giving the fishing rod better bending strength and toughness. The carbon fiber and glass fiber are orthogonally arranged at 0° / 90°, effectively improving the fishing rod's torsional resistance. The fiber outer layer 15 uses high-density glass fiber, spirally wound at ±45°, increasing the fishing rod's surface wear resistance and impact resistance.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A glass fiber reinforced plastic fishing rod having high bending resistance, comprising an extendable fishing rod body (10), characterized in that: The segment connection of the telescopic fishing rod body (10) is provided with an annular reinforcing ring (11), the telescopic fishing rod body (10) comprises a base layer (12), the outer wall of the base layer (12) is fixedly installed with a net-shaped inner layer (13), the outer wall of the net-shaped inner layer (13) is fixedly installed with a mixed intermediate layer (14), and the outer wall of the mixed intermediate layer (14) is fixedly installed with a fiber outer layer (15).

2. The glass fiber reinforced fishing rod with high bending resistance according to claim 1, characterized in that: The telescopic fishing rod body (10) adopts a gradually changing wall thickness, and the decreasing rate from thick to thin is 1:

15.

3. The glass fiber reinforced fishing rod with high bending resistance according to claim 1, characterized in that: The annular reinforcing ring (11) is made of carbon fiber and has a thickness of 0.5-1mm.

4. The glass fiber reinforced fishing rod with high bending resistance according to claim 1, characterized in that: The base layer (12) is made of a mixture of epoxy resin and nano silicon dioxide particles.

5. The glass fiber reinforced fishing rod with high bending resistance according to claim 4, characterized in that: The nano silicon dioxide particles have a particle size of 50-100nm, and the addition amount of the nano silicon dioxide particles is 3%-5%.

6. The glass fiber reinforced fishing rod with high bending strength according to claim 1, characterized in that: The material of the net inner layer (13) is Kevlar fiber, and the grid density is 5-8 meshes / cm 2 .

7. The glass fiber reinforced fishing rod with high bending strength according to claim 1, characterized in that: The mixed intermediate layer (14) is made of a mixture of carbon fiber and glass fiber, and the carbon fiber and the glass fiber are arranged in 0° / 90° orthogonally.

8. The glass fiber reinforced fishing rod with high bending resistance according to claim 7, characterized in that: The proportion of the carbon fiber in the mixed intermediate layer (14) is 30%-40%.

9. The glass fiber reinforced fishing rod with high bending strength according to claim 1, characterized in that: The fiber outer layer (15) is made of high-density glass fiber, and the fiber direction of the fiber outer layer (15) is ±45° spiral winding.