Magnetic brake structure and fishing reel

Abstract

According to the magnetic brake structure, the first magnetic ring piece and the second magnetic ring piece are arranged in the side cover, the magnetic induction wheel capable of moving along with turbine blades is installed in the middle of the side cover, linkage of the limiting pin and the cam groove on the rotating shaft and the self-reset function of the reset spring are combined, and automatic adjustment and quick response of brake force are achieved. During throwing, the upper limiting pin is separated from the cam groove, the turbine fan blades are driven to move towards the side cover and rotate, the magnetic induction wheel is pushed to be inserted into a gap between the magnetic rings, stable and strong magnetic damping force is rapidly generated, and overspeed of the spool is effectively restrained. After the wire cup decelerates, the thrust is weakened, the magnetic induction wheel rapidly retreats through the reset spring, the braking force is weakened accordingly, it is guaranteed that the braking force is automatically adjusted along with the speed of the wire wheel in the wire throwing process, and the balance of the wire outlet speed of the wire wheel and the bait speed is guaranteed. The invention further provides a fishing reel which has the advantages that braking force is quickly established during high-speed throwing to prevent line explosion, and resistance is quickly released during low-speed throwing to guarantee smooth line pulling.

Description

Technical Field

[0001] The present invention relates to the technical field of fishing reels, and in particular to a magnetic brake structure and a fishing reel. Background Art

[0002] Fishing reels are a crucial component of modern fishing equipment, and their performance directly impacts key user experiences like casting distance and handling. To effectively control the spool's rotational speed during casting and prevent line tangles and breakage, most mid- to high-end reels are equipped with brake systems. Magnetic brakes, due to their contactless nature, fast response, and minimal wear, are widely used among various brake types, particularly for high-precision lure casting.

[0003] Existing magnetic brakes typically utilize fixed magnetic rings or simple adjustable structures, with the magnets mounted on the reel's side cover. Braking force is adjusted by adjusting the distance between the magnets and the spool. However, these structures exhibit a delayed braking response, particularly during the initial stages of casting, when the spool rotates at high speed. Traditional magnetic brake systems struggle to respond in a timely manner, resulting in insufficient braking force and the potential for line breakage. Furthermore, brake adjustment lacks precise control, with magnet position adjustment typically relying on a mechanical knob with a short travel and limited adjustment range, making it difficult to meet the dynamic braking requirements of diverse fishing environments.

[0004] In light of this, some improved structures have attempted to introduce components such as floating magnets and magnetic induction wheels to achieve dynamic control, but these still suffer from complex structures, delayed response, or poor stability. Especially during high-speed casting, the speed and stability of the magnetic brake response remain key bottlenecks limiting the performance of the braking system. Therefore, there is a need to provide a magnetic brake device with fast response, adjustable braking force, and a stable and reliable structure to improve the control performance and operating experience of fishing reels in actual use. Summary of the Invention

[0005] In response to the deficiencies of the prior art, the present invention provides a magnetic brake structure and a fishing reel, which effectively improve problems such as slow brake response of some traditional magnetic brake structures.

[0006] A magnetic brake structure for controlling the braking force of a fishing reel, wherein the fishing reel is provided with a spool, a rotating shaft and a side cover, and the magnetic brake structure comprises a magnetic ring group, a magnetic induction wheel and a turbine blade; the magnetic ring group comprises a first magnetic ring member and a second magnetic ring member arranged in the side cover, a gap is left between the first magnetic ring member and the second magnetic ring member and the second magnetic ring member is located on the inner side; the magnetic induction wheel is connected to the side of the turbine blade close to the side cover, and the magnetic induction wheel is located between the first magnetic ring member and the second magnetic ring member; the turbine blade comprises a shaft sleeve and a shaft sleeve arranged in an annular manner The shaft comprises a plurality of blades on the side of the sleeve, the sleeve is sleeved on the top end of the rotating shaft, and the sleeve is recessed with a cam groove on the side away from the side cover to the side close to the side cover, and the rotating shaft is provided with an upper limit pin for adapting to the cam groove, and the upper limit pin cooperates with the cam groove to make the turbine fan blade move and rotate along the axis of the rotating shaft, thereby changing the distance between the magnetic induction wheel and the first magnetic ring component and the second magnetic ring component; a stopper is provided on the side of the rotating shaft close to the side cover, and a return spring is sleeved on the outside of the rotating shaft between the stopper and the turbine fan blade.

[0007] Preferably, the cam groove includes a bottom surface, an arcuate surface connected to a first side of the bottom surface and parallel to the outer side surface of the sleeve, a stop surface connected to a second side of the bottom surface and perpendicular to the bottom surface, and a sliding surface connected to a third side of the bottom surface and arranged at an acute angle to the bottom surface, the stop surface, the arcuate surface and the sliding surface are connected end to end, the stop surface and the sliding surface are arranged opposite to each other, and the sliding surface is used for the upper limit pin to slide along it, thereby driving the turbine fan blade to rotate and making the turbine fan blade move upward toward the side of the side cover.

[0008] Furthermore, two cam grooves are provided, and the two cam groove axes are arranged axially symmetrically with respect to the central axis of the sleeve.

[0009] Preferably, an annular ring is connected to the outer periphery of the plurality of blades, and the annular ring and the magnetic induction wheel are provided with matching connection holes and connection columns.

[0010] Preferably, the first magnetic ring component includes a plurality of floating magnet mounting seats arranged in a ring shape on the inner side edge of the side cover, the floating magnet mounting seat is provided with a mounting groove on the side facing the second magnetic ring component, an arc-shaped magnet is provided in the mounting groove, and guide bars are provided on both sides of the floating magnet mounting seat, and the guide bars are connected to the side cover by an elastic member so that the floating magnet mounting seat is floated and mounted in the side cover.

[0011] Furthermore, the elastic member is a torsion spring.

[0012] Furthermore, an annular base is provided on the inner side of the side cover, and a plurality of arc-shaped mounting positions for installing the floating magnet mounting seat are provided on the annular base. A mounting hole is provided on both sides of the arc-shaped mounting position of the annular base, and the torsion spring is installed in the mounting hole, and one end of the torsion spring is sleeved on the guide bar.

[0013] A fishing reel comprises a fishing reel body, a spool for reeling in and releasing a fishing line and capable of rotating relative to the fishing reel body, a rotating shaft for driving the spool to rotate, a side cover, and a magnetic brake structure.

[0014] Preferably, a mounting hole is provided at one end of the rotating shaft away from the side cover, a lower limit pin is inserted into the mounting hole, a cam limiter is provided on the fishing reel body, a plurality of cam limiter grooves are provided on the cam limiter, and the cam limiter is connected to a mechanical brake adjustment knob provided at the end of the fishing reel body.

[0015] Preferably, a bearing is provided in the middle of the rotating shaft.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a magnetic brake structure, which realizes automatic adjustment and rapid response of the braking force by arranging a first magnetic ring component and a second magnetic ring component in a side cover respectively and installing a magnetic induction wheel that can move with the turbine fan blades therebetween, and combining the linkage between the upper limit pin and the cam groove set on the rotating shaft and the self-resetting function of the reset spring. During the casting process, the upper limit pin disengages the cam groove, thereby driving the turbine blades to move toward the side of the side cover. At the same time, the turbine blades are driven by the rotating shaft to rotate. The centrifugal force during the rotation of the turbine blades will provide a thrust toward the side cover, thereby quickly pushing the magnetic induction wheel into the gap between the inner and outer magnetic rings. The magnetic induction wheel cuts the magnetic field between the inner and outer magnetic rings, so that a stable and powerful magnetic damping force can be quickly generated, thereby effectively suppressing the overspeed of the spool; when the spool slows down, the centrifugal force during the rotation of the turbine blades decreases, and the thrust exerted on the magnetic induction wheel is weakened accordingly. The return spring releases energy (when the thrust is less than the elastic force of the return spring), so that the speed at which the magnetic induction wheel retracts (that is, the magnetic induction wheel slowly withdraws from the gap between the first magnetic ring part and the second magnetic ring part) will also become faster, thereby reducing the braking force, thereby ensuring that the braking force automatically adjusts with the speed of the reel when casting, ensuring the balance between the line delivery speed of the reel and the speed of the bait, and ensuring smooth and steady casting. This structure achieves dynamic matching of braking force without the need for an external adjustment mechanism, combining advantages such as fast response speed and high adjustment precision, thereby significantly improving the reel's controllability and safety in different fishing methods and environments. The present application also provides a fishing reel that can quickly establish and stably maintain sufficient braking force during high-speed casting, preventing line breakage or entanglement caused by overspeeding the spool, thereby ensuring its controllability and reliability in various fishing environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the fishing reel according to the present invention; Figure 2 This is a schematic cross-sectional view of the magnetic brake structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the magnetic brake structure of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the spool according to the present invention; Figure 5 This is a partial cross-sectional schematic diagram of the magnetic brake structure at the spool according to the present invention; Figure 6 It is a partial three-dimensional cross-sectional schematic diagram of the magnetic brake structure at the spool according to the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the turbine blade according to the present invention in one direction; Figure 8 This is a schematic diagram of the three-dimensional structure of the turbine blade according to the present invention from another direction; Figure 9 This is a schematic structural diagram of the side cover of the present invention; Figure 10 It is a partial structural schematic diagram of the side cover of the present invention; Figure 11 This is a schematic diagram of the structure after removing the floating magnet mounting seat from the side cover of the present invention.

[0018] in: 10-side cover, 20-spool, 30-fishing reel body, 40-rotating shaft, 21-magnetic induction wheel, 22-turbine fan blade, 23-first magnetic ring, 24-second magnetic ring, 221-sleeve, 222-blade, 223-annular ring, 224-cam groove, 225-bottom surface, 226-arc surface, 227-stop surface, 228-sliding surface, 41-upper limit pin, 42-E-shaped retaining ring, 43-washer, 44-bearing, 45-lower limit pin, 50-reset spring, 11-floating magnet mounting seat, 12-mounting slot, 13-arc magnet, 14-guide strip, 15-torsion spring, 16-annular holder, 17-arc mounting position, 18-mounting hole, 19-limiting column, 110-arc cover. DETAILED DESCRIPTION

[0019] The embodiments described below are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] See Figures 2 to 8 This embodiment provides a magnetic brake structure for controlling the braking force of a fishing reel. The fishing reel is provided with a spool 20, a rotating shaft 40 and a side cover 10. The magnetic brake structure includes a magnetic ring group, a magnetic induction wheel 21 and a turbine fan blade 22.

[0021] See Figure 2 、 Figure 3 Specifically, the magnetic ring assembly includes a first magnetic ring component 23 and a second magnetic ring component 24 disposed in the side cover 10 , a gap is left between the first magnetic ring component 23 and the second magnetic ring component 24 and the second magnetic ring component 24 is located on the inner side; See Figure 2 、 Figure 5 as well as Figure 6 The magnetic induction wheel 21 is connected to the turbine blade 22, and the magnetic induction wheel 21 is located between the first magnetic ring part 23 and the second magnetic ring part 24; when the turbine blade 22 moves axially on the rotating shaft 40 toward the side cover 10, the magnetic induction wheel 21 is inserted into the gap area between the first magnetic ring part 23 and the second magnetic ring part 24, thereby generating a magnetic damping force for braking.

[0022] See Figure 2 、 Figure 3 、 Figure 5 as well as Figure 6 The turbine blade 22 includes a sleeve 221 and a plurality of blades 222 arranged in an annular manner on the side of the sleeve 221. The sleeve 221 is sleeved on the top of the shaft 40, and the sleeve 221 is recessed from the side of the side cover 10 to the side close to the side cover 10 to form a cam groove 224. The shaft 40 is provided with an upper limit pin 41 adapted to the cam groove 224. The upper limit pin 41 cooperates with the cam groove 224 to allow the turbine blade 22 to rotate. The magnetic induction wheel 21 moves along the axis of the rotating shaft 40, thereby changing the distance between the first magnetic ring part 23 and the second magnetic ring part 24. At the same time, the turbine blades 22 will rotate with the rotating shaft 40 and drive the magnetic induction wheel 21 to cut the magnetic field between the first magnetic ring part 23 and the second magnetic ring part 24. A stopper is provided on the side of the rotating shaft 40 close to the side cover 10, and a return spring 50 is sleeved on the outside of the rotating shaft 40 between the stopper and the turbine blades 22.

[0023] It should be noted that the blades 222 described in this application are all arranged in a manner inclined along the rotation direction of the sleeve 221, so as to generate thrust along the axis of the shaft 40 when the turbine blades 22 rotate at high speed with the shaft 40. Specifically, the inclination direction of the blades 222 and the rotation direction act together to form a centrifugal thrust pointing in the direction of the side cover 10, which pushes the turbine blades 22 toward the side cover 10. During normal operation, as the rotation speed of the shaft 40 increases, the axial thrust generated by the blades 222 gradually increases, thereby overcoming the elastic force of the return spring 50, so that the magnetic induction wheel 21 is located in the gap between the first magnetic ring part 23 and the second magnetic ring part 24, thereby enhancing the magnetic induction coupling strength and achieving a stronger electromagnetic braking effect; and when the speed decreases and the magnetic induction wheel 21 needs to exit the gap between the first magnetic ring part 23 and the second magnetic ring part 24, the axial thrust generated by the blades 222 will cause the magnetic induction wheel 21 to slowly exit, avoiding the rapid disappearance of the braking force and achieving a slow decrease in the braking force. Preferably, the inclination angle of the blade 222 is 30° to 60° with the axis of the sleeve 221. More preferably, the inclination angle of the blade 222 is 45° with the axis of the sleeve 221, thereby ensuring the axial thrust output efficiency while taking into account the balance between air flow resistance and structural strength, which is conducive to achieving sufficient axial displacement under smaller speed changes.

[0024] See Figure 7 、 Figure 8 Preferably, the cam groove 224 includes a bottom surface 225, an arcuate surface 226 connected to a first side of the bottom surface 225 and parallel to the outer side surface of the sleeve 221, a stop surface 227 connected to a second side of the bottom surface 225 and perpendicular to the bottom surface 225, and a sliding surface 228 connected to a third side of the bottom surface 225 and arranged at an acute angle to the bottom surface 225. The stop surface 227, the arcuate surface 226 and the sliding surface 228 are connected end to end, and the stop surface 227 and the sliding surface 228 are arranged opposite to each other. The sliding surface 228 is used for the upper limit pin 41 to slide along it, thereby driving the turbine blade 22 to rotate and causing the turbine blade 22 to move upward toward the side of the side cover 10.

[0025] When the rotating shaft 40 rotates, the upper limit pin 41 rotates synchronously with the rotating shaft 40. Under the guidance of the cam groove 224, the upper limit pin 41 rotates via the bottom surface 225 to the sliding surface 228. Because the sliding surface 228 is arranged at an acute angle with the bottom surface 225 and the sliding surface 228 is arranged downwardly in the axial direction away from the side cover 10, the upper limit pin 41 can push the turbine blade 22 toward the side cover 10. Because the upper limit pin 41 is fixed to the rotating shaft 40 and tightly fits the cam groove 224 structure, as the sliding surface 228 slides, it also applies a torsional torque to the shaft sleeve 221 of the turbine blade 22, thereby driving the turbine blade 22 to rotate synchronously about the axis of the rotating shaft 40.

[0026] See Figure 7 、 Figure 8 Furthermore, two cam grooves 224 are provided, and the axes of the two cam grooves 224 are arranged axially symmetrically with respect to the central axis of the sleeve 221. This structure allows both ends of the upper limit pin 41 to slide simultaneously along the sliding surfaces 228 of the two corresponding cam grooves 224 during rotation, forming a symmetrical linked thrust. This not only improves the stability of the turbine blade 22 during axial movement, but also ensures balanced force during its rotation around the axis, further improving the overall response accuracy and reliability of the system.

[0027] Preferably, the outer periphery of the plurality of blades 222 is connected to an annular ring 223, which not only enhances the overall structural strength and stability of the blades 222, but also effectively ensures that the blades 222 maintain a consistent stress state during high-speed rotation, thereby preventing the blades 222 from deforming or shifting. The annular ring 223 is provided with a plurality of connecting holes or connecting columns, which cooperate with the corresponding connecting columns or connecting holes provided on the magnetic induction wheel 21, so that the annular ring 223 can be firmly mounted on the outer periphery of the magnetic induction wheel 21, thereby achieving reliable fixation of the two. By connecting the turbine blades 22 to the magnetic induction wheel 21, the turbine blades 22 and the magnetic induction wheel 21 form an integral rotating unit and work together, thereby more efficiently achieving the axial adjustment of the magnetic induction wheel 21 between the first magnetic ring part 23 and the second magnetic ring part 24 and the dynamic control of the electromagnetic braking intensity.

[0028] Preferably, the stopper is an E-shaped buckle 42 , and a washer 43 is provided at the bottom of the buckle of the E-shaped buckle 42 .

[0029] See Figure 9 、 Figure 10 as well as Figure 11Preferably, the first magnetic ring component 23 includes a plurality of floating magnet mounting seats 11 arranged in an annular shape on the inner side of the side cover 10. The floating magnet mounting seat 11 is provided with a mounting groove 12 on the side facing the second magnetic ring component 24. The mounting groove 12 is provided with an arc-shaped magnet 13. Guide bars 14 are provided on both sides of the floating magnet mounting seat 11. The guide bars 14 and the side cover 10 are connected by an elastic member so that the floating magnet mounting seat 11 is floatingly mounted in the side cover 10. In this application, the elastic member is a torsion spring 15. During operation of this structure, as the rotation speed of the magnetic induction wheel 21 increases, the magnetic induction wheel 21 on the spool 20 continuously cuts the static magnetic field of the arc-shaped magnet 13 on the floating magnet mounting seat 11, resulting in a significant increase in the rate of change of the magnetic flux passing through the magnetic induction wheel 21. According to Faraday's law of electromagnetic induction, this change induces strong eddy currents within the annular conductor. The direction of the induced magnetic field generated by this eddy current is opposite to the polarity of the magnetic field of the arc magnet 13, thereby pushing the floating magnet mount 11 to overcome the resistance of the elastic member and move toward the magnetic induction wheel 21, thereby reducing the distance between the arc magnet 13 and the magnetic induction wheel 21. Because the intensity of the magnetic field is inversely proportional to the square of the distance, the braking force of the arc magnet 13 on the spool 20 increases, and the elastic member is stretched and stores elastic potential energy in this process. When the speed of the spool 20 decreases, the rate of change of the magnetic flux passing through the magnetic induction wheel 21 decreases, resulting in a decrease in the intensity of the induced eddy current. The elastic potential energy of the elastic member is released and pulls the floating magnet mount 11 back to its original position. The distance between the arc magnet 13 and the magnetic induction wheel 21 increases, and the braking force decreases simultaneously. Therefore, the first magnetic ring 23 can automatically and sensitively adjust the braking force according to the change of the rotation speed of the rotating shaft 40, adjust the balance between the line outlet speed of the spool and the movement speed of the bait, and prevent the fishing line from accumulating on the spool and causing the spool to "fried rice noodles".

[0030] It should be noted that in this application, the second magnetic ring component 24 is a multi-stage magnet arranged in a ring shape. Of course, the first magnetic ring component 23 can also be a multi-stage magnet arranged in a ring shape, and the second magnetic ring component 24 has opposite magnetic poles to the first magnetic ring component 23.

[0031] See Figure 9 、 Figure 10 as well as Figure 11Furthermore, an annular holder 16 is provided on the inner side of the side cover 10. The annular holder 16 is provided with a plurality of arc-shaped mounting positions 17 for mounting the floating magnet mounting seat 11. A mounting hole 18 is provided on both sides of the arc-shaped mounting position 17 of the annular holder 16. The cross-section of the mounting hole 18 is b-shaped. The opening of the b-shaped mounting hole 18 is used to accommodate the body coil of the torsion spring 15 and allow it to stably store energy in a stretched state. The waist of the b-shaped mounting hole 18 is used to accommodate one end of the torsion spring 15. The other end of the torsion spring 15 is sleeved on the guide bar 14. In the present application, the annular holder 16 is connected to the guide bar 14 by a plurality of limiting posts 19 provided on the side cover 10 to achieve a limiting connection. Furthermore, the present application also includes an arc-shaped cover plate 110, which is screw-connected to the mounting hole 18 of the annular holder 16. It should be noted that the arc-shaped cover plate 110 is also screw-connected to the threaded hole on the limiting column 19. The arc-shaped cover plate 110 not only limits the annular holder 16, but also prevents the torsion spring 15 from falling out. The screw connection between the arc-shaped cover plate 110, the arc-shaped cover plate 110, and the limiting column 19 also facilitates quick disassembly and assembly during later maintenance. Only the screws on the arc-shaped cover plate 110 need to be removed to remove the torsion spring 15 or replace the arc-shaped magnet 13, which greatly improves the convenience and reliability of assembly and maintenance.

[0032] Preferably, the floating magnet mounting seats 11 are provided in two numbers and are symmetrically arranged in the side cover 10. To ensure the balance and stability of the magnetic braking effect. Specifically, the two groups of floating magnet mounting seats 11 are respectively installed at symmetrical positions of the annular holder 16, which can synchronously respond to the changes in the magnetic field generated by the high-speed rotation of the spool 20 during operation, so that the arc magnets 13 on the two mounting seats approach the spool 20 in the same direction and amplitude, respectively, to achieve symmetrical braking control, effectively avoiding the problems of spool 20 deflection, brake response lag or unstable operation caused by uneven unilateral braking force, further improving the stability of the braking system and the coaxial accuracy of the spool 20 operation, and improving the overall control feel and service life of the fishing reel.

[0033] The magnetic brake structure provided by the present invention realizes automatic adjustment and rapid response of the braking force by arranging the first magnetic ring component 23 and the second magnetic ring component 24 in the side cover 10 respectively and installing the magnetic induction wheel 21 therebetween which can move axially with the turbine blade 22, combined with the linkage between the upper limit pin 41 and the cam groove 224 set on the rotating shaft 40 and the self-resetting function of the reset spring 50. During the casting process, the upper limit pin 41 disengages from the cam groove 224, thereby driving the turbine blade 22 to displace and rotate toward the side cover 10. The turbine blade 22 will provide a thrust toward the side cover 10 due to the centrifugal force during rotation, thereby quickly pushing the magnetic induction wheel 21 into the gap between the inner and outer magnetic rings. The magnetic induction wheel cuts the magnetic field between the inner and outer magnetic rings, so that a stable and powerful magnetic damping force can be quickly generated, thereby effectively suppressing the overspeed of the spool 20; when the spool 20 decelerates, the centrifugal force during the rotation of the turbine blade decreases, and the thrust is weakened accordingly. The return spring 50 releases energy to make the retraction speed of the magnetic induction wheel 21 faster accordingly, thereby reducing the braking force, thereby ensuring that the braking force automatically adjusts to the size of the reel speed when casting, ensuring the balance between the reel line delivery speed and the bait speed, thereby ensuring smooth and stable casting. It should be noted that due to the axial thrust of the turbine blade 22, the turbine blade 22 will not quickly exit the gap between the first magnetic ring part 23 and the second magnetic ring part 24, thereby avoiding the rapid disappearance of the braking force. Therefore, the magnetic brake structure can achieve dynamic matching of the braking force without the need for an external adjustment mechanism, and has the advantages of fast response speed and high adjustment accuracy, thereby significantly improving the controllability and safety of the fishing reel in different fishing methods and environments.

[0034] See Figures 1 to 11 This embodiment also provides a fishing reel, including a fishing reel body 30, the spool 20 for reeling in and releasing the fishing line and capable of rotating relative to the fishing reel body 30, a rotating shaft 40 for driving the spool 20 to rotate, the side cover 10, and the magnetic brake structure.

[0035] Preferably, a mounting hole 18 is provided at one end of the rotating shaft 40 away from the side cover 10, and a lower limit pin 45 is inserted into the mounting hole 18. A cam limiter is provided on the fishing reel body 30, and a plurality of cam limiter grooves are provided on the cam limiter. The cam limiter is connected to a mechanical brake adjustment knob provided at the end of the fishing reel body 30.

[0036] Preferably, a bearing 44 is provided in the middle of the rotating shaft 40. The bearing 44 is used to reduce the friction of the rotating shaft 40 during the rotation process, and improve the smoothness and sensitivity of the rotation. The bearing 44 is a high-precision ball bearing, which is made of wear-resistant and corrosion-resistant materials to meet the use requirements of the fishing reel in various complex environments. The bearing 44 is installed in the middle bearing seat of the rotating shaft 40, and the coaxiality of the bearing and the rotating shaft 40 is ensured through precise matching, avoiding vibration and noise caused by eccentricity. At the same time, the sealing structure of the bearing 44 effectively prevents impurities such as moisture and sand from entering, thereby extending the service life of the bearing. This design allows the fishing reel to maintain good stability and operational feel even when rotating at high speed, significantly improving the overall user experience.

[0037] The fishing reel provided in the present application can quickly establish and stably maintain sufficient braking force during high-speed casting, preventing the line from being blown or entangled due to overspeed of the spool 20, thereby ensuring its controllability and reliability in various fishing environments.

[0038] The above disclosures are merely some preferred embodiments of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A magnetic brake structure for controlling the braking force of a fishing reel, wherein the fishing reel comprises a spool, a rotating shaft, and a side cover, and is characterized in that: The magnetic brake structure includes a magnetic ring group, a magnetic induction wheel and a turbine blade; the magnetic ring group includes a first magnetic ring component and a second magnetic ring component arranged in the side cover, a gap is left between the first magnetic ring component and the second magnetic ring component and the second magnetic ring component is located on the inner side; the magnetic induction wheel is connected to the turbine blade, and the magnetic induction wheel is located between the first magnetic ring component and the second magnetic ring component; the turbine blade includes a shaft sleeve and a plurality of blades arranged annularly on the side of the shaft sleeve, and the shaft sleeve is sleeved on the top of the rotating shaft end, and a cam groove is provided on the side of the sleeve away from the side cover and recessed toward the side close to the side cover, and an upper limit pin is provided on the rotating shaft to adapt to the cam groove, and the upper limit pin cooperates with the cam groove to make the turbine blade move and rotate along the axis of the rotating shaft, thereby changing the distance between the magnetic induction wheel and the first magnetic ring component and the second magnetic ring component; a stopper is provided on the side of the rotating shaft close to the side cover, and a return spring is provided on the outer side of the rotating shaft between the stopper and the turbine blade.

2. The magnetic brake structure according to claim 1, wherein: The cam groove includes a bottom surface, an arcuate surface connected to a first side of the bottom surface and parallel to the outer side surface of the sleeve, a stop surface connected to a second side of the bottom surface and perpendicular to the bottom surface, and a sliding surface connected to a third side of the bottom surface and arranged at an acute angle to the bottom surface. The stop surface, the arcuate surface and the sliding surface are connected end to end, and the stop surface and the sliding surface are arranged opposite to each other. The sliding surface is used for the upper limit pin to slide along it, thereby driving the turbine fan blade to rotate and making the turbine fan blade move upward toward the side of the side cover.

3. The magnetic brake structure according to claim 2, characterized in that: Two cam grooves are provided, and the two cam groove axes are arranged axially symmetrically with respect to the central axis of the sleeve.

4. The magnetic brake structure according to claim 1, wherein: An annular ring is connected to the outer periphery of the plurality of blades, and the annular ring and the magnetic induction wheel are provided with matching connection holes and connection columns.

5. The magnetic brake structure according to claim 1, wherein: The first magnetic ring component includes a plurality of floating magnet mounting seats arranged in a ring shape on the inner side edge of the side cover, the floating magnet mounting seat is provided with a mounting groove on the side facing the second magnetic ring component, an arc-shaped magnet is provided in the mounting groove, and guide bars are provided on both sides of the floating magnet mounting seat, and the guide bars are connected to the side cover by an elastic member so that the floating magnet mounting seat is floated and mounted in the side cover.

6. The magnetic brake structure according to claim 5, characterized in that: The elastic member is a torsion spring.

7. The magnetic brake structure according to claim 5, characterized in that: An annular holder is provided on the inner side of the side cover, and a plurality of arc-shaped mounting positions for mounting the floating magnet mounting seat are provided on the annular holder. A mounting hole is provided on both sides of the arc-shaped mounting position of the annular holder, and the torsion spring is installed in the mounting hole. One end of the torsion spring is sleeved on the guide bar.

8. A fishing reel comprising a fishing reel body, a spool for reeling in and releasing fishing line and capable of rotating relative to the fishing reel body, a rotating shaft for driving the spool to rotate, and a side cover, wherein: It also includes a magnetic brake structure as described in any one of claims 1 to 7.

9. The magnetic brake structure and fishing reel according to claim 8, wherein: A mounting hole is provided at one end of the rotating shaft away from the side cover, a lower limit pin is inserted into the mounting hole, a cam limiter is provided on the fishing reel body, a plurality of cam limiter grooves are provided on the cam limiter, and the cam limiter is connected to a mechanical brake adjustment knob provided at the end of the fishing reel body.

10. The fishing reel according to claim 8, wherein: A bearing is arranged in the middle of the rotating shaft.

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