High-sensitivity fishing rod with bevelled joint

Abstract

The utility model provides a kind of high sensitivity fishing rod of bevel joint, include front pole section, rear pole section and connecting section, by using the matching structure of bevel in the abutting surface of front pole section and rear pole section, the connection of front pole section and rear pole section is realized by connecting section bonding in the inner wall of two pole sections, effectively avoid the looseness of interface, guarantee the firm connection between pole section, bevel cooperation makes stress direction more evenly distributed, reduce stress concentration, improve the rigidity and stability of interface, while bevel contact surface is larger, so that the force transmission path between front pole section and rear pole section is optimized, improve the response capability of fishing rod to underwater subtle tension change, thereby significantly enhance the sensitivity in the fishing process.

Description

Technical Field

[0001] This utility model relates to the field of fishing rod technology, specifically a highly sensitive fishing rod with a slanted plug-in joint. Background Technology

[0002] As the most crucial tool in fishing, the fishing rod's structure and performance directly impact the feel of the fish and the catch rate. Traditional multi-section fishing rods typically use straight-joint or sleeve connections between sections. However, in certain fishing scenarios, such as when targeting fish like silver carp, bighead carp, and mandarin fish with rapid reactions and frequent changes in tension, the rod needs to accurately transmit underwater bites to the angler in a very short time to allow for timely hook-setting or fish-playing maneuvers. These fish bite lightly and swim quickly; if the rod joints wobble or the signal weakens, it can lead to missed bites or a sluggish response, resulting in missed opportunities to hook the fish. Existing straight-joint rods are prone to stress concentration at the joints when transmitting tension and bending forces, leading to loosening or breakage. Furthermore, the gaps at the joints can widen during use, reducing the overall sensitivity and stability of the rod. Additionally, the slight wobble caused by straight-joint connections under stress can weaken the angler's perception of bites. Therefore, it is necessary to provide a high-sensitivity fishing rod with a slanted plug joint. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a highly sensitive fishing rod with a slanted connector, effectively improving the problems of poor sensitivity and stability in some traditional fishing rods.

[0004] A highly sensitive fishing rod with a beveled joint includes a front rod section, a rear rod section, and a connecting section. The two ends of the connecting section are respectively fitted onto the inner walls of the front rod section and the rear rod section and bonded to them by an adhesive structure. The opposite sides of the front rod section and the rear rod section are both configured with beveled joints that fit together. The opposite sides of the beveled joints of the front rod section and the rear rod section are respectively provided with two symmetrically arranged positioning structures. The positioning structures include a limiting groove that contracts inward from the beveled side and a limiting protrusion that protrudes outward from the beveled side.

[0005] Preferably, the vertical projection of the bevel is tilted at an angle of 8° to 25° relative to the central axis of the front or rear rod section.

[0006] Furthermore, the tilt angle is 14°.

[0007] Preferably, the limiting groove is an arc-shaped limiting groove, and the limiting protrusion is an arc-shaped limiting protrusion.

[0008] Preferably, the length of the connecting rod is 8% to 12% of the total length of the front and rear rod sections.

[0009] Preferably, both the front and rear rod sections are formed by a multi-layer structure. The multi-layer structure includes, from the inside out, a first carbon fiber layer, a composite braided layer, a second carbon fiber layer, and a glass fiber strip layer. The first and second carbon fiber layers are woven from multiple carbon fiber bundles parallel to the axis of the rod length of the front or rear rod section. The composite braided layer includes multiple glass fiber bundles interwoven at ±45° to the axis of the rod length and multiple carbon fiber bundles parallel to the axis of the rod length. The carbon fiber bundles of the composite braided layer are interspersed among the interwoven glass fiber bundles. The glass fiber strip layer is woven from multiple glass fiber strips and is spirally wound around the outside of the second carbon fiber layer at a 20-25° angle. A thin magnesium alloy film layer is disposed between the composite braided layer and the second carbon fiber layer within a predetermined distance from the bevel side of the front and rear rod sections away from the bevel side.

[0010] Furthermore, the first carbon fiber layer and the second carbon fiber layer are prepreg-molded structures, consisting of multiple parallel carbon fiber bundles parallel to the axis of the rod length direction. The carbon fiber bundles are kept in a stable relative position by hot melt adhesive spot bonding or interlaced mesh positioning fibers.

[0011] Furthermore, the ratio of interwoven glass fiber bundles to carbon fiber bundles in the composite braided layer is 1:1 to 2:1.

[0012] Furthermore, the sum of the lengths of the thin magnesium alloy film layers of the front rod section and the rear rod section is equal to or slightly greater than the length of the connecting section.

[0013] Preferably, the bonding structure is an epoxy resin adhesive layer disposed between the front rod section and the rear rod section and the connecting section, and a roughening layer is disposed on the outer surface of the connecting section before bonding.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a highly sensitive fishing rod with a beveled joint, comprising a front rod section, a rear rod section, and a connecting section. The connection between the front and rear rod sections is achieved by using a beveled joint structure at their contact surfaces, combined with the connecting section being bonded to the inner walls of the two rod sections. This effectively prevents loosening at the joint, ensuring a stable connection between the rod sections. The beveled joint also results in a more even distribution of force, reducing stress concentration and improving the rigidity and stability of the joint. Furthermore, the larger beveled contact surface optimizes the force transmission path between the front and rear rod sections, enhancing the rod's responsiveness to subtle changes in underwater tension, thus significantly increasing sensitivity during fishing. Simultaneously, the positioning structure, including a limiting groove and a limiting protrusion, works together to ensure precise positioning of the beveled joint during the bonding of the connecting section, preventing minor displacement and further improving the overall stability and operational response speed of the rod, greatly enhancing the fishing experience and increasing the success rate of hooking fish. Therefore, this angled plug-in high-sensitivity fishing rod can transmit underwater fish signals more accurately and promptly, enabling anglers to quickly perceive the dynamic changes of the fish, thereby improving the reaction speed and control of the rod, and significantly increasing the catch rate and fishing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the disassembled structure of the high-sensitivity fishing rod with the oblique insertion joint described in this utility model; Figure 2 This is a schematic diagram of the connection structure of the high-sensitivity fishing rod with the oblique insertion joint described in this utility model; Figure 3 This is a partial structural diagram of the multi-layered structure of the front and rear rod sections. in: 1-Front rod section, 2-Rear rod section, 3-Connecting section, 4-Limiting groove, 5-Limiting protrusion, 20-First carbon fiber layer, 30-Composite braided layer, 40-Second carbon fiber layer, 50-Glass fiber tape layer. Detailed Implementation

[0016] The embodiments described below are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0017] See Figure 1 as well as Figure 2This embodiment provides a highly sensitive fishing rod with a beveled joint, comprising a front rod section 1, a rear rod section 2, and a connecting section 3. The two ends of the connecting section 3 are respectively sleeved and bonded to the inner walls of the front rod section 1 and the rear rod section 2 through an adhesive structure. The opposite sides of the front rod section 1 and the rear rod section 2 are both configured with beveled joints that fit together. The opposite sides of the beveled joints of the front rod section 1 and the rear rod section 2 are respectively provided with two symmetrically arranged positioning structures. The positioning structure includes a limiting groove 4 that contracts inward from the beveled side and a limiting protrusion 5 that protrudes outward from the beveled side.

[0018] Preferably, the vertical projection of the bevel is tilted at an angle of 8° to 25° relative to the central axis of the front rod section 1 or the rear rod section 2. This range of tilt angles effectively balances the stress distribution at the connection point, ensuring stability at the joint while avoiding stress concentration or structural weakening issues that may result from excessively large angles. Optimizing the bevel angle improves the meshing tightness between rod sections, enhancing overall rigidity and stability. This further improves the rod's sensitivity to subtle vibrations and underwater fish bites, ensuring rapid and accurate feedback of fish bites during fishing, thus increasing response speed and success rate.

[0019] Furthermore, the tilt angle is 14°. This ensures the stability of the interface structure while achieving optimal force transmission, effectively reducing the risk of stress concentration and improving the fatigue resistance of the connection. In addition, the 14° tilt angle optimizes the fit between the rod sections, achieving an optimal balance between the overall rigidity and sensitivity of the fishing rod. This significantly improves the response to subtle changes in underwater tension during fishing, enhancing the fishing experience and increasing the success rate of hooking fish.

[0020] Preferably, the limiting groove 4 is an arc-shaped limiting groove 4, and the limiting protrusion 5 is an arc-shaped limiting protrusion 5. The arc-shaped structure design makes the fit between the limiting groove 4 and the limiting protrusion 5 tighter and smoother, which can absorb and disperse the stress at the connection point to a certain extent, reduce local stress concentration, and improve the durability and stability of the interface. At the same time, the arc-shaped structure achieves precise positioning during the bonding process of the connecting section 3, preventing slight displacement between rod sections, thereby making the connection between the front rod section 1 and the rear rod section 2 tighter, further enhancing the overall rigidity and operating response speed of the fishing rod, thus improving the sensitivity and feel during fishing.

[0021] Preferably, the length of the connecting rod is 8% to 12% of the total length of the front rod section 1 and the rear rod section 2. This ratio ensures that the connecting section 3 has sufficient bonding area while effectively controlling the overall weight and rigidity distribution of the fishing rod, preventing the connection from becoming too cumbersome due to excessive length or affecting the connection strength due to insufficient length. Therefore, the connecting section 3 can achieve a stable connection between the front rod section 1 and the rear rod section 2, improving the overall mechanical performance and durability of the fishing rod, while ensuring the sensitivity and flexibility of the rod body, meeting the needs of high-performance fishing.

[0022] See Figure 3 Preferably, both the front rod section 1 and the rear rod section 2 are formed by winding a multi-layer structure. The multi-layer structure includes, from the inside out, a first carbon fiber layer 20, a composite braided layer 30, a second carbon fiber layer 40, and a glass fiber strip layer 50. The first carbon fiber layer 20 and the second carbon fiber layer 40 are both woven from multiple carbon fiber bundles parallel to the axis of the rod body along its length. The composite braided layer 30 includes multiple glass fiber bundles interlaced at ±45° to the axis of the rod body along its length. The composite braided layer 30 contains multiple carbon fiber bundles parallel to the axis of the rod length direction. The carbon fiber bundles of the composite braided layer 30 are interlaced between multiple interwoven glass fiber bundles. The glass fiber strip layer 50 is woven from multiple glass fiber strips and is spirally wound around the outside of the second carbon fiber layer 40 at an angle of 20-25°. A thin magnesium alloy film layer is provided between the composite braided layer 30 and the second carbon fiber layer 40 within a predetermined distance from the bevel side to the side away from the bevel side of the front rod section 1 and the rear rod section 2.

[0023] It should be noted that the first carbon fiber layer 20 and the second carbon fiber layer 40 in the rod body of the front section 1 or the rear section 2 are arranged parallel to each other along the axial direction of the rod body, thus providing good longitudinal tensile strength and basic support for the rod body; the composite braided layer 30 is made of multiple carbon fiber bundles interlaced with glass fiber bundles at ±45° and parallel to the axis of the rod body length, giving the rod body excellent torsional resistance and multi-directional force coordination ability; and the outermost glass fiber tape layer 50 is spirally wound around the outside of the second carbon fiber layer 40, thereby improving the circumferential stability and crack resistance and wear resistance of the rod body. In addition, the thin magnesium alloy film layer can significantly enhance the strength of the connection between the connecting section 3 and the front section 1 and the rear section 2. As a high-strength, lightweight transition material layer, the magnesium alloy film layer effectively improves the overall rigidity and load-bearing capacity of the connection area and reduces the risk of interface damage caused by stress concentration. It should be noted that the thickness of the thin magnesium alloy film is 0.05~0.2 mm. This thickness range ensures the high strength of the thin magnesium alloy film without significantly increasing the overall weight of the rod, thus maintaining the fishing rod's lightness and sensitivity.

[0024] More specifically, the first carbon fiber layer 20 and the second carbon fiber layer 40 are prepreg-molded structures, composed of multiple parallel carbon fiber bundles parallel to the axis of the rod length. These carbon fiber bundles are held in relatively stable positions by hot melt adhesive spot bonding or by interlaced mesh positioning fibers. It should be noted that the first carbon fiber layer 20 and the second carbon fiber layer 40 are each composed of several carbon fiber bundles, each containing multiple continuous monofilaments (such as 12K or 24K specifications), laid parallel to the rod axis (i.e., the 0° direction). To ensure the consistency and stability of fiber arrangement during winding or molding, the carbon fiber bundles in each layer are bonded together by hot melt adhesive spot bonding or by lateral positioning weaving using a fine mesh of low-gram redirected fibers, thereby limiting the relative displacement and twisting between bundles and forming a consistent sheet with dimensional stability and good wetting properties.

[0025] Meanwhile, the composite braided layer 30 consists of multiple glass fibers interwoven at ±45° to the axis of the rod length direction of the front rod section 1 or the rear rod section 2, and multiple carbon fiber bundles parallel to the axis of the rod length direction. The carbon fiber bundles of the composite braided layer 30 are interwoven vertically between the interwoven glass fibers. More specifically, in this embodiment, the multiple glass fiber bundles of the composite braided layer 30 arranged at ±45° to the axis of the rod length direction are woven in an upward and downward cross pattern to form a plain weave-like interwoven structure, and the multiple carbon fiber bundles arranged parallel to the axis of the rod are set as longitudinal reinforcing fibers in this interwoven structure. During weaving, the carbon fiber bundles are interwoven at intervals between the upper and lower layers of the ±45° glass fiber intersection points to form a nested connection between multiple layers. At one intersection point, the carbon fiber bundle is located below the oblique glass fiber braiding unit, and when it continues to extend to the next intersection unit, it passes from below to above, and so on. This interlacing method not only achieves effective connection between fibers in different directions, but also allows the entire composite structure to simultaneously share stress during longitudinal tension and oblique torsion, thereby improving the multi-bearing capacity and crack resistance of the front rod section 1 and the rear rod section 2. Furthermore, the ratio of interwoven glass fiber bundles to carbon fiber bundles in the composite braided layer 30 is 1:1 to 2:1.

[0026] Secondly, the glass fiber tape layer 50 is woven from multiple glass fiber ribbons, each ribbon consisting of multiple parallel bundles of fine fibers arranged evenly and tightly, forming a tape-like structure with good flexibility and extensibility. In this application, the glass fiber ribbons are pre-impregnated with an epoxy resin system or bonded with resin to maintain a stable tape shape, preventing warping, wrinkling, or loosening during winding. When laid, the glass fiber tape layer 50 is spirally and evenly wound around the outer surface of the second carbon fiber layer 40 at a 20-25° angle, overlapping and tightly wrapping to form a continuous circumferential reinforcing tape. This effectively improves the circumferential strength and surface wear resistance of the rod, enhancing its structural stability and service life during repeated bending, impacts, and long-term use.

[0027] Furthermore, the sum of the lengths of the thin magnesium alloy film layers of the front rod section 1 and the rear rod section 2 is equal to or slightly greater than the length of the connecting section 3. This ensures that the connecting section 3 can fully cover the area where the thin magnesium alloy film layer is located after bonding, achieving optimal mechanical property transfer and stress distribution. Simultaneously, the increased coverage of the thin magnesium alloy film layer also improves the fatigue resistance and durability at the joint, allowing the fishing rod to maintain good structural integrity and sensitivity even under repeated use and complex underwater environments, greatly extending the lifespan of the fishing rod and enhancing the user experience.

[0028] Preferably, the bonding structure is an epoxy resin adhesive layer disposed between the front rod section 1, the rear rod section 2, and the connecting section 3, and a roughening layer is provided on the outer surface of the connecting section 3 before bonding. The epoxy resin adhesive layer has excellent bonding strength and durability, effectively ensuring a firm bond between the connecting section 3 and the rod section, and improving the stability and impact resistance of the overall structure. Before bonding, a roughening layer is provided on the outer surface of the connecting section 3. This roughening layer is formed by mechanical grinding or chemical treatment, which significantly increases the roughness of the surface of the connecting section 3, thereby improving the adhesion between the epoxy resin adhesive and the surface of the connecting section 3 and preventing slippage or detachment during the bonding process. In addition, the roughening layer also promotes the uniform distribution of the adhesive layer, reduces the generation of interface bubbles and defects, further enhances the sealing and corrosion resistance of the bonding area, and ensures that the fishing rod maintains excellent mechanical properties and stable connection effect during long-term use.

[0029] Preferably, the connecting section 3 is a hollow tubular structure, and the wall thickness of the connecting section 3 is less than the wall thickness of the front rod section 1 and the rear rod section 2. This not only effectively reduces the overall weight of the connecting section, improving the portability and feel of the fishing rod, but also ensures, through reasonable wall thickness control, that the connecting section has sufficient strength and rigidity to stably connect the front rod section 1 and the rear rod section 2, avoiding the impact on the sensitivity and stress uniformity of the rod body due to excessive thickness at the connection point. Furthermore, the hollow tubular structure helps absorb and disperse some stress, further improving the durability and fatigue resistance of the fishing rod during use.

[0030] This invention provides a highly sensitive fishing rod with a beveled joint, comprising a front rod section 1, a rear rod section 2, and a connecting section 3. By employing a beveled joint structure at the contact surfaces of the front and rear rod sections 1 and 2, and combining this with the connecting section 3 bonded to the inner walls of the two rod sections, the connection between the front and rear rod sections 1 and 2 is achieved. This effectively prevents loosening at the joint, ensuring a stable connection between the rod sections. The beveled joint also results in a more even distribution of force, reducing stress concentration and improving the rigidity and stability of the joint. Furthermore, the larger beveled contact surface optimizes the force transmission path between the front and rear rod sections 1 and 2, improving the rod's responsiveness to subtle changes in underwater tension, thus significantly enhancing sensitivity during fishing. Simultaneously, the positioning structure, including a limiting groove 4 and a limiting protrusion 5, works together to ensure precise positioning of the beveled joint when the connecting section 3 is bonded, preventing minor displacement and further improving the overall stability and operational response speed of the fishing rod, greatly enhancing the fishing experience and increasing the success rate of hooking fish. Therefore, this angled plug-in high-sensitivity fishing rod can transmit underwater fish signals more accurately and promptly, enabling anglers to quickly perceive the dynamic changes of the fish, thereby improving the reaction speed and control of the rod, and significantly increasing the catch rate and fishing efficiency.

[0031] The above-disclosed embodiments are merely some preferred embodiments of the present utility model, and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model patent application shall still fall within the scope of the present utility model.

Claims

1. A highly sensitive fishing rod with a slanted insert joint, characterized in that: It includes a front rod section, a rear rod section, and a connecting section. The two ends of the connecting section are respectively sleeved and bonded to the inner walls of the front rod section and the rear rod section through an adhesive structure. The opposite sides of the front rod section and the rear rod section are both set as mutually mating bevels. The opposite sides of the bevels of the front rod section and the rear rod section are respectively provided with two symmetrically arranged positioning structures. The positioning structure includes a limiting groove that shrinks inward from the bevel side and a limiting protrusion that protrudes outward from the bevel side.

2. The high-sensitivity fishing rod with a slanted insertion joint as described in claim 1, characterized in that, The vertical projection of the bevel is tilted at an angle of 8° to 25° relative to the central axis of the front or rear rod section.

3. The high-sensitivity fishing rod with a slanted insertion joint as described in claim 2, characterized in that, The tilt angle is 14°.

4. The high-sensitivity fishing rod with a slanted insertion joint as described in claim 1, characterized in that, The limiting groove is an arc-shaped limiting groove, and the limiting protrusion is an arc-shaped limiting protrusion.

5. The high-sensitivity fishing rod with a slanted insertion joint as described in claim 1, characterized in that, The length of the connecting rod is 8% to 12% of the total length of the front and rear rod sections.

6. The high-sensitivity fishing rod with a slanted insertion joint as described in claim 1, characterized in that, Both the front and rear rod sections are formed by a multi-layer structure. This multi-layer structure includes, from the inside out, a first carbon fiber layer, a composite braided layer, a second carbon fiber layer, and a glass fiber strip layer. The first and second carbon fiber layers are woven from multiple carbon fiber bundles parallel to the axis of the rod's length. The composite braided layer includes multiple glass fiber bundles interlaced at ±45° to the axis of the rod's length and multiple carbon fiber bundles parallel to the axis of the rod's length. The carbon fiber bundles of the composite braided layer are interlaced between the interlaced glass fiber bundles. The glass fiber strip layer is woven from multiple glass fiber strips and is spirally wound around the outside of the second carbon fiber layer at a 20-25° angle. A thin magnesium alloy film layer is disposed between the composite braided layer and the second carbon fiber layer within a predetermined distance from the bevel side of the front and rear rod sections away from the bevel side.

7. The high-sensitivity fishing rod with a slanted insertion joint as described in claim 6, characterized in that, The first carbon fiber layer and the second carbon fiber layer are prepreg-molded structures, consisting of multiple parallel carbon fiber bundles parallel to the axis of the rod length direction. The carbon fiber bundles are kept in a stable relative position by hot melt adhesive spot bonding or interlaced mesh positioning fibers.

8. The high-sensitivity fishing rod with a slanted insertion joint as described in claim 6, characterized in that, The ratio of interwoven glass fiber bundles to carbon fiber bundles in the composite braided layer is 1:1 to 2:

1.

9. The high-sensitivity fishing rod with a slanted insertion joint as described in claim 6, characterized in that, The sum of the lengths of the thin magnesium alloy film layers of the front rod section and the rear rod section is equal to or slightly greater than the length of the connecting section.

10. The high-sensitivity fishing rod with a slanted insert joint as described in claim 1, characterized in that, The bonding structure is an epoxy resin adhesive layer disposed between the front rod section and the rear rod section and the connecting section, and a roughening layer is disposed on the outer surface of the connecting section before bonding.

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