Two-section floating self-adaptive magnetic brake for fishing reel

Abstract

This utility model relates to the technical field of fishing reel equipment and discloses a two-stage floating adaptive magnetic brake for fishing reels. It includes a fishing reel housing with a fixed base, an arc-shaped slide rail with varying height on the fixed base, a rotatable semi-open magnetic ring, and a floating magnetic strip slidably disposed on the magnetic ring. The bottom surface of the floating magnetic strip slides in contact with the arc-shaped slide rail. When the spool rotates at high speed, electromagnetic induction drives the semi-open magnetic ring to rotate, which in turn drives the floating magnetic strip to rotate. The floating magnetic strip is lifted by the arc-shaped slide rail, bringing the magnet closer to the spool and increasing the braking force. When the rotation speed decreases, a reset mechanism resets the semi-open magnetic ring, reducing the braking force. This utility model solves the problem of existing magnetic brakes not being able to automatically adjust the braking force. It adaptively adjusts the braking force according to the spool rotation speed, effectively preventing line breakage and increasing casting distance. The structure is simple and reliable.

Description

Technical Field

[0001] This utility model relates to the field of fishing reel equipment technology, and in particular to a two-stage floating adaptive magnetic brake for fishing reels. Background Technology

[0002] Fishing reels, especially double-spool reels (also known as horizontal reels or baitcasting reels), have spools that spin at high speeds during casting. To prevent line tangling and messiness (commonly known as "line breakage" or "line tangling") caused by the spool spinning too fast and the line not keeping up with the release speed, fishing reels are generally equipped with braking systems. Magnetic braking systems are a common type, which utilize the eddy current effect generated when a magnet approaches the high-speed rotating metal spool to create electromagnetic resistance, thereby braking the spool.

[0003] Existing magnetic braking devices typically use a magnet fixed in a specific position within the braking system. Before casting, the user adjusts the distance between the magnet and the spool sidewall using an external knob, thus pre-setting a fixed braking force. The main drawback of this system is that once set, the braking force remains constant throughout the casting process. However, in an ideal casting, the spool's rotational speed changes dynamically. At the initial moment of casting, the spool's rotational speed reaches its peak, requiring maximum braking force to suppress it. Towards the end of the casting, as the lure's flight speed decreases, the spool's rotational speed also decreases, requiring minimum braking force to avoid premature braking and thus achieve a greater casting distance.

[0004] Existing fixed magnetic brakes cannot simultaneously meet these two conflicting needs. If the user sets the initial braking force too high to prevent line breakage, the entire casting process will be affected by this high force, resulting in a significantly shortened casting distance. Conversely, if the braking force is set too low to maximize distance, the line is prone to breakage at the initial stage of casting due to insufficient braking force. This deficiency in the braking force's inability to automatically adjust according to the real-time rotation speed of the spool severely impacts the user experience and casting performance of the fishing reel. Therefore, this invention proposes a two-stage floating adaptive magnetic brake for fishing reels to address the shortcomings of existing technologies. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a two-stage floating adaptive magnetic brake for fishing reels, which aims to improve the problem that some existing two-stage floating adaptive magnetic brakes for fishing reels have a fixed braking force or require manual adjustment, and cannot automatically match the braking force according to the real-time rotation speed of the spool, resulting in easy "line breakage" in the early stage of casting and serious impact on casting distance in the later stage of casting.

[0006] This utility model provides a two-stage floating adaptive magnetic brake for fishing reels, including a fishing reel housing with a fixed base, an arc-shaped slide rail on the fixed base, and the arc-shaped slide rail having a continuous height change along its circumference; the braking device also includes a semi-open magnetic ring that can be rotatably connected around the central axis of the fixed base, and a floating magnetic strip that is slidably disposed on the semi-open magnetic ring.

[0007] The bottom surface of the floating magnet strip is always in sliding contact with the surface of the arc-shaped track.

[0008] Furthermore, the semi-open magnetic ring, floating magnetic strip, and arc-shaped slide are combined in a coordinated manner, so that when the semi-open magnetic ring rotates under the action of electromagnetic induction force, the floating magnetic strip can move along the surface of the arc-shaped slide and be raised or lowered by it while rotating with it, thereby changing the distance between the magnet and the spool. The semi-open magnetic ring is also provided with a reset mechanism for driving it to reset. The reset mechanism includes a spring groove and a pin that can be radially slidably set on the semi-open magnetic ring. The spring groove contains a reset spring, and the elastic force of the reset spring is applied to the semi-open magnetic ring through the pin to resist the electromagnetic induction force and allow the semi-open magnetic ring to rotate back to the initial position after the electromagnetic induction force weakens.

[0009] Preferably, the semi-open magnet ring has an arc-shaped groove, and the main body of the floating magnet strip is slidably accommodated in the arc-shaped groove. The length direction of the arc-shaped groove provides guidance and limitation for the movement trajectory of the floating magnet strip.

[0010] Preferably, in addition to the arc-shaped groove, the semi-open magnet ring is also provided with a positioning pin. The positioning pin passes through the floating magnet strip and is fixed to the semi-open magnet ring. The structural design is used to allow the floating magnet strip to float radially while driving it to rotate synchronously with the semi-open magnet ring.

[0011] Preferably, the floating magnet strip has magnet holes for installing magnets, and the semi-open magnet ring also has corresponding magnet holes. This corresponding arrangement ensures that the magnetic field of the magnet can pass through the semi-open magnet ring and effectively act on the spool.

[0012] Preferably, the two-stage floating adaptive magnetic brake for the fishing reel also includes a fixed cover, which covers the top of the semi-open magnetic ring and forms a closed space with the semi-open magnetic ring to accommodate the floating magnetic strip and the reset mechanism, thereby protecting the internal linkage mechanism and preventing dust and debris from entering.

[0013] Preferably, the fixing cover is provided with screw holes, and the fixing cover is fixedly connected to the semi-open magnetic ring by screws passing through the screw holes, so as to achieve convenient assembly and fastening, and also facilitate subsequent maintenance.

[0014] Preferably, the surface of the arc-shaped slide is a cam inclined surface with gradually increasing height along the rotation direction of the semi-open magnet ring under the action of electromagnetic induction force. This structure is the core of realizing the conversion of circumferential rotational displacement to radial lifting displacement.

[0015] Preferably, when the semi-open magnet ring is in the initial position, the bottom surface of the floating magnet strip contacts the lowest point of the arc-shaped slide. At this time, the distance between the magnet on the floating magnet strip and the spool is the farthest, thus ensuring the initial state with the least braking force and guaranteeing the smoothness of line release at the end of casting.

[0016] This utility model has the following beneficial effects: 1. This utility model, through the mechanical linkage of a semi-open magnetic ring, a floating magnetic strip, and an arc-shaped slide with varying height, cleverly transforms the electromagnetic induction torque generated when the spool rotates at high speed into the radial lifting displacement of the floating magnetic strip. This solves the problem in existing technologies where the magnetic braking force is fixed or requires manual adjustment and cannot automatically adapt to the real-time rotation speed of the spool. It achieves the technical effect of automatically increasing the braking force to prevent line breakage when the spool speed is high at the beginning of casting, and automatically reducing the braking force to increase the casting distance when the spool speed decreases at the end of casting.

[0017] 2. This utility model, by designing the arc-shaped slide as a cam inclined surface fixed on the base, and the floating magnet strip as a follower sliding along its surface, realizes the floating adaptive adjustment of braking force using a purely mechanical structure. It solves the problem that existing braking systems rely on complex adjustment mechanisms or manual intervention, resulting in complex structures and insensitive responses. It achieves the technical effect of simple structure, reliable operation, and timely braking force adjustment response.

[0018] 3. This utility model solves the problem that the braking mechanism cannot reliably return to the initial low braking state after the line cup speed decreases by setting a reset mechanism composed of a spring groove, a pin and a reset spring. The reset spring's elasticity pushes the semi-open magnet ring to rotate and reset. This achieves the technical effect of ensuring that the braking force can automatically drop to the minimum at the end of the casting process, thus guaranteeing the smoothness of the casting and the long-distance casting performance. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a two-stage floating adaptive magnetic brake for a fishing reel proposed in this utility model. Figure 2 Figures 3, 4, and 5 show the structural diagrams of individual parts after disassembly.

[0020] Legend: 1. Spring groove; 2. Pin; 3. Semi-open magnet ring; 4. Floating magnet strip; 5. Fixing cap; 6. Screw hole; 7. Locating pin; 8. Arc-shaped slide; 9. Arc-shaped groove; 10. Magnet hole. Detailed Implementation

[0021] 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. Example

[0022] Reference Figures 1 to 5 This utility model provides a two-stage floating adaptive magnetic brake for fishing reels, which aims to solve the problem that existing fishing reel magnetic brake devices cannot automatically adjust the braking force according to the spool speed, resulting in easy line breakage in the early stage of casting and limited casting distance in the later stage.

[0023] like Figure 1 As shown, the fishing reel with a two-stage floating adaptive magnetic brake includes a fishing reel housing with a fixed base, and a brake assembly that can be rotatably connected around the central axis of the fixed base. The fixed base is provided with an arc-shaped slide rail 8 with a continuously varying height along its circumference. The arc-shaped slide rail 8 serves as a fixed cam track, providing the structural basis for the entire adaptive adjustment function. The brake assembly mainly includes a semi-open magnetic ring 3, a floating magnetic strip 4, and a set of reset mechanisms. The semi-open magnetic ring 3 is the rotating body of the entire brake assembly. It receives the electromagnetic induction force generated by the high-speed rotation of the spool and rotates. The floating magnet strip 4 is a follower that can float radially on the semi-open magnet ring 3 and rotate synchronously with it. Its bottom surface is always in sliding contact with the surface of the arc-shaped slide rail 8. This structural design allows the circumferential rotation of the semi-open magnet ring 3 to be converted into radial lifting displacement of the floating magnet strip 4 through the cooperation of the floating magnet strip 4 and the arc-shaped slide rail 8, thereby changing the distance between the magnet and the spool and realizing automatic adjustment of the braking force. The reset mechanism is used to provide a restoring force when the electromagnetic induction force weakens or disappears, so that the semi-open magnet ring 3 rotates back to the initial position. Specifically, the reset mechanism includes a spring groove 1 set on the semi-open magnet ring 3 and a pin 2 that can be slidably arranged radially. The spring groove 1 houses a reset spring. The elastic force of the reset spring is applied to the semi-open magnet ring 3 through the pin 2 to resist the electromagnetic induction torque and ensure that it can reliably reset at the end of the casting.

[0024] Reference Figure 2 , Figure 3 and Figure 4The semi-open magnetic ring 3, as the rotating drive component of the linkage mechanism, has an arc-shaped groove 9 for accommodating the floating magnetic strip 4. The shape and size of the arc-shaped groove 9 are adapted to the floating magnetic strip 4, and its length direction provides basic guidance and limitation for the movement trajectory of the floating magnetic strip 4. To ensure that the floating magnetic strip 4 can rotate synchronously with the semi-open magnetic ring 3, while allowing it to generate radial floating displacement, the semi-open magnetic ring 3 is also provided with a positioning pin 7. The positioning pin 7 passes through the floating magnetic strip 4 and is fixed to the semi-open magnetic ring 3. This connection method forms a sliding guide structure, which ensures the effective transmission of force and the relative degree of freedom of movement.

[0025] The floating magnet strip 4, as the core driven component in the linkage mechanism, has magnet holes 10 for installing magnets. The magnetic field generated by these magnets interacts with the high-speed rotating spool. At the same time, the semi-open magnet ring 3 also has corresponding magnet holes 10 to ensure that the magnetic field can act on the spool without obstruction. The main body of the floating magnet strip 4 is slidably accommodated in the arc-shaped groove 9 and rotates circumferentially together with the semi-open magnet ring 3 under the drive of the positioning pin 7.

[0026] The arc-shaped slide 8 is the key to realizing the floating function and adaptive adjustment. As a fixed cam, its surface is a cam slope with gradually increasing height along the rotation direction of the semi-open magnet ring 3 under the action of electromagnetic induction force. In the assembled state, the bottom surface of the floating magnet strip 4 is always in sliding contact with the cam slope. When the semi-open magnet ring 3 rotates, the floating magnet strip 4 is forcibly lifted by the cam slope while rotating with it, so that the magnet on it is closer to the spool and the braking force is enhanced. Conversely, when the semi-open magnet ring 3 is reset, the floating magnet strip 4 will descend smoothly along the cam slope and the braking force will be weakened. This purely mechanical linkage structure ensures the reliability and instant response of the braking force adjustment process.

[0027] Reference Figure 1 and Figure 5 The device also includes a fixing cover 5, which covers the top of the semi-open magnetic ring 3 and forms a closed space with the semi-open magnetic ring 3 to accommodate the floating magnetic strip 4 and the reset mechanism. To achieve reliable fixation, the fixing cover 5 is provided with screw holes 6. The fixing cover 5 is fixedly connected to the semi-open magnetic ring 3 by screws passing through the screw holes 6. This connection method facilitates assembly and subsequent maintenance.

[0028] Reference Figure 1 and Figure 4When the semi-open magnet ring 3 is in its initial position, that is, when it is not subjected to electromagnetic induction torque or the torque is less than the preload of the return spring, the bottom surface of the floating magnet strip 4 contacts the lowest point of the arc-shaped slide 8. At this time, the magnet on the floating magnet strip 4 has the greatest induction distance with the spool, and the generated magnetic braking force is the smallest, thus ensuring the smoothness of the spool's line release at the end of casting or during slow line retrieval.

[0029] The implementation principle of this application embodiment is as follows: when the casting is in the initial state or the spool speed is low, the electromagnetic induction torque generated by the rotation of the spool is small. At this time, the reset spring is set in the spring groove 1, and its elastic force pushes the semi-open magnetic ring 3 to remain in the initial position through the pin 2. In the initial position, the bottom surface of the floating magnetic strip 4 slides in contact with the lowest point of the arc-shaped slide 8. The distance between the magnet in the magnetic hole 10 on the floating magnetic strip 4 and the spool is the farthest. At this time, the magnetic braking force is the smallest.

[0030] When the angler casts the line forcefully, the spool begins to rotate at high speed. The high-speed rotating metal spool cuts the magnetic field of the magnet in the magnet hole 10 on the floating magnet strip 4, generating a strong eddy current effect. This, in turn, creates an electromagnetic braking resistance on the spool. At the same time, the resistance is also applied to the semi-open magnet ring 3 in the form of a reaction torque. When the torque is greater than the preload of the return spring, the semi-open magnet ring 3 begins to rotate against the spring force.

[0031] When the semi-open magnet ring 3 rotates, it drives the floating magnet strip 4 to rotate synchronously through the positioning pin 7 and the arc groove 9. Since the bottom surface of the floating magnet strip 4 is always in sliding contact with the cam inclined surface of the fixed arc slide 8, and the height of the cam inclined surface gradually increases along the rotation direction, the floating magnet strip 4 will be gradually lifted by the surface of the arc slide 8 while rotating, so that the magnet in the magnet hole 10 on it is close to the spool. The faster the spool rotates, the larger the angle of rotation of the semi-open magnet ring 3, and the higher the floating magnet strip 4 is lifted. The magnetic braking force will also automatically increase, thus providing a strong adaptive braking force in the initial stage of casting and effectively preventing line breakage.

[0032] At the end of the casting process, as the spool speed decreases, the electromagnetic induction torque decreases accordingly. When the torque is less than the return force of the return spring, the return spring pushes the semi-open magnet ring 3 to rotate back to the initial position through the pin 2. Under the drive of the semi-open magnet ring 3, the floating magnet strip 4 slides back to the lowest point along the cam slope of the arc-shaped slide 8. The magnet moves away from the spool, and the braking force is reduced to a minimum to ensure a longer casting distance. The entire braking assembly is fastened by the fixed cover 5 through the screw holes 6, forming a stable and reliable whole.

Claims

1. A two-stage floating adaptive magnetic brake for a fishing reel, comprising a fishing reel housing with a fixed base, wherein the fixed base is provided with an arc-shaped slide rail (8) having a continuously varying height along its circumference. The fishing reel with two-stage floating adaptive magnetic brake also includes a semi-open magnet ring (3) that can be rotatably connected around the central axis of the fixed base, and a floating magnet strip (4). Its features are, The floating magnet strip (4) is slidably disposed on the semi-open magnet ring (3), and the bottom surface of the floating magnet strip (4) is always in sliding contact with the surface of the arc-shaped slide (8), so that when the semi-open magnet ring (3) is rotated by electromagnetic induction force, the floating magnet strip (4) moves along the surface of the arc-shaped slide (8) and is lifted or lowered by it. The semi-open magnet ring (3) is provided with a reset mechanism for driving it to reset. The reset mechanism includes a spring groove (1) and a pin (2) that can be radially slidably disposed on the semi-open magnet ring (3). The spring groove (1) contains a reset spring. The elastic force of the reset spring is applied to the semi-open magnet ring (3) through the pin (2) to resist the electromagnetic induction force and make it return to the initial position after the electromagnetic induction force weakens.

2. The two-stage floating adaptive magnetic brake for a fishing reel according to claim 1, characterized in that, The semi-open magnet ring (3) has an arc-shaped groove (9) on it. The main body of the floating magnet strip (4) is slidably accommodated in the arc-shaped groove (9). The length direction of the arc-shaped groove (9) defines the movement trajectory of the floating magnet strip (4).

3. The two-stage floating adaptive magnetic brake for a fishing reel according to claim 2, characterized in that, The semi-open magnet ring (3) is also provided with a positioning pin (7), which passes through the floating magnet strip (4) and is fixed to the semi-open magnet ring (3) to drive the floating magnet strip (4) to rotate synchronously with the semi-open magnet ring (3) while allowing the floating magnet strip (4) to float radially.

4. The two-stage floating adaptive magnetic brake for a fishing reel according to claim 1, characterized in that, The floating magnet strip (4) has magnet holes (10) for installing magnets, and the semi-open magnet ring (3) also has corresponding magnet holes (10) so that the magnetic field of the magnet can pass through.

5. A two-stage floating adaptive magnetic brake for a fishing reel according to claim 1, characterized in that, It also includes a fixing cover (5), which covers the top of the semi-open magnet ring (3) and forms a closed space with the semi-open magnet ring (3) to accommodate the floating magnet strip (4) and the reset mechanism.

6. A two-stage floating adaptive magnetic brake for a fishing reel according to claim 5, characterized in that, The fixing cover (5) is provided with screw holes (6). The fixing cover (5) is fixedly connected to the semi-open magnet ring (3) by screws passing through the screw holes (6) to achieve assembly and fastening.

7. A two-stage floating adaptive magnetic brake for a fishing reel according to claim 1, characterized in that, The surface of the arc-shaped slide (8) is a cam inclined surface with a gradually increasing height along the rotation direction of the semi-open magnet ring (3) under the action of electromagnetic induction force.

8. A two-stage floating adaptive magnetic brake for a fishing reel according to claim 7, characterized in that, When the semi-open magnet ring (3) is in the initial position, the bottom surface of the floating magnet strip (4) contacts the lowest point of the arc-shaped slide (8). At this time, the distance between the magnet on the floating magnet strip (4) and the spool is the farthest, and the braking force is the smallest.

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