Fishing reel floating magnetic brake device

Abstract

The utility model discloses a fishing reel floating magnetic brake device, which relates to the technical field of fishing tackles, and comprises a reel seat, a magnet component and an adjusting mechanism, the adjusting mechanism drives the magnet component to move up and down to adjust the brake force of the reel, and the magnet component comprises a base, a sliding block, a spring, a magnet array and a bottom plate. A plurality of protruding spring installation grooves are formed in the bottom end face of the base, guide grooves matched with the spring installation grooves are formed in the sliding blocks, the spring installation grooves are inserted into the guide grooves so that the sliding blocks can slide outwards, the springs are arranged in the spring installation grooves, and the two ends of each spring abut against the inner wall of the corresponding spring installation groove and the inner wall of the corresponding guide groove respectively. The bottom plate is fixed to the bottom of the base and axially limits the sliding block. Electromagnetic attraction force generated by rotation of the spool is utilized to drive the sliding block and the magnet array to move, the distance between the magnet and the spool is automatically changed, braking force is automatically and smoothly adjusted along with the rotating speed of the spool, wire explosion is prevented, the throwing distance and stability are improved, the structure is compact, and work is reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to fishing tackle technical field, concretely is a fishing reel floating magnetic brake device. BACKGROUND

[0002] The magnetic brake system is a kind of line cup rotating speed control technology widely used in modern fishing reel.The basic principle is that when the line cup (usually made of conductive material such as aluminum alloy) rotates, it cuts the static magnetic field generated by the fixed magnet, thereby generating eddy current in the line cup, and the eddy current generates a braking force (i.e., brake force) that interacts with the original magnetic field and hinders the rotation of the line cup.The size of the brake force mainly depends on the distance between the magnet and the line cup and the effective area of the line cup cutting the magnetic induction lines.

[0003] Currently, the mainstream magnetic brake mechanism is of "preset" type.The angler needs to manually drive the entire magnet assembly to move axially before casting, to adjust its depth of rotation into the reel, and thereby change the area of the line cup cutting the magnetic induction lines, to preset a fixed brake force level.

[0004] The traditional magnetic brake mechanism cannot respond to the dynamic changes of the line cup rotating speed during the casting process.In the initial stage of casting, the line cup rotating speed reaches a peak instantaneously, at which time the maximum brake force is needed to suppress the line explosion.Subsequently, as the flight speed of the dummy bait decays due to air resistance, the line cup rotating speed also decreases, and the required brake force should also be reduced accordingly to pursue a longer distance.The fixed preset brake force cannot meet this dynamic requirement: if the preset force is too large, the casting distance will be severely sacrificed;If the preset force is too small, the initial stage of casting will be extremely unstable and extremely prone to line explosion. SUMMARY

[0005] In view of the problems existing in the prior art, the fishing reel floating magnetic brake device of the utility model can automatically adjust the brake force according to the real-time rotating speed of the line cup.

[0006] The technical scheme adopted by the utility model is as follows: a fishing reel floating magnetic brake device, comprising a reel seat, a magnet assembly built-in in the reel seat, and an adjusting mechanism connected with the magnet assembly, the adjusting mechanism drives the magnet assembly to move up and down to adjust its depth of rotation into the reel, and thereby changes the area of the line cup cutting the magnetic induction lines, to realize the adjustment of the brake force of the reel, the magnet assembly comprises a base, a plurality of sliding blocks, a plurality of springs, a magnet array and a bottom plate.

[0007] A plurality of spring mounting grooves are fixed on the bottom end face of the base in the circumferential direction, the spring mounting grooves protrude from the bottom end face of the base, and are in the form of a rectangular frame structure with one end open, and the open end faces the inside of the base.

[0008] A plurality of the sliding blocks are arranged one-to-one with a plurality of the spring mounting slots, each of the sliding blocks is provided with a guide slot corresponding to the spring mounting slot, the width of the guide slot is adapted to the width of the spring mounting slot, and the length of the guide slot is greater than the length of the spring mounting slot, the spring mounting slot is inserted into the guide slot of the corresponding sliding block, so that the sliding block can slide outward along the spring mounting slot;

[0009] A plurality of the springs are arranged one-to-one with a plurality of the spring mounting slots, each of the springs is accommodated in the corresponding spring mounting slot, and the two ends of the spring abut the inner wall of the spring mounting slot and the inner wall of the sliding block guide slot respectively, when the sliding block slides outward along the spring mounting slot, the spring is compressed synchronously with the movement of the sliding block;

[0010] The magnet array is fixedly embedded on the radially outer side of the sliding block;

[0011] The bottom plate is fixedly connected with the bottom of the base, and axially limits the sliding block.

[0012] Further, the center line of the spring mounting slot forms an acute angle with the radial direction of the base.

[0013] Further, the sliding block has a fan ring structure, the axis of the sliding block coincides with the axis of the base, and the radius of curvature of the outer peripheral wall of the sliding block is the same as the radius of curvature of the outer peripheral wall of the base.

[0014] Further, the number of spring mounting slots is three, and they are uniformly distributed on the bottom end surface of the base.

[0015] Further, the stiffness coefficients of the plurality of springs are not completely the same.

[0016] Further, the end corners of the spring mounting slot farthest and closest to the center of the base are arc-shaped corners, and the corner of the guide slot on the sliding block corresponding to the arc-shaped corner of the spring mounting slot is an arc-shaped corner adapted thereto.

[0017] Further, the adjusting mechanism includes an adjusting knob and a transmission assembly connected with the adjusting knob, the transmission assembly is connected with the base to drive the base to move up and down.

[0018] Further, the transmission assembly includes a threaded column with external threads, the center of the base is provided with a center hole axially penetrating, the inner wall of the center hole is provided with internal threads matched with the external threads on the threaded column, the threaded column is threadedly connected with the center hole on the base after penetrating the line wheel seat, and a guide keying mechanism is arranged between the base and the line wheel seat to limit the rotation of the base relative to the line wheel seat.

[0019] Furthermore, the threaded column is a hollow structure, and a through hole matching the threaded column is provided at the center of the reel seat. A coaxial positioning column is provided in the through hole, and the outer diameter of the positioning column matches the hollow inner diameter of the threaded column. The threaded column is sleeved on the positioning column, and the bottom of the positioning column is connected to the reel seat through at least two spaced-apart connecting plates.

[0020] Furthermore, the upper end surface of the base is provided with an upwardly extending protrusion, and the reel seat is provided with an embedding groove matching the protrusion; the protrusion is located in the embedding groove, forming a guide keying mechanism that limits the rotation of the base.

[0021] The beneficial effects of the present invention are:

[0022] (1) The utility model directly utilizes the electromagnetic attraction generated by the rotation of the spool cutting the magnetic flux lines as the power source for driving the magnet assembly. When the casting speed increases, the electromagnetic attraction increases, directly overcoming the spring force to push the sliding block and the magnet array to move axially toward the spool, reducing the gap, thereby increasing the braking force to suppress excessive increase in the speed; conversely, when the speed decreases, the electromagnetic attraction weakens, the spring force pushes the magnet to reset, and the braking force decreases accordingly, avoiding excessive braking. This process forms an inherent and efficient negative feedback closed-loop control system, which automatically responds to speed changes throughout the entire process without manual intervention or electronic components, changing the inherent mode of traditional brakes that need to be manually set in advance and remain unchanged throughout the casting process;

[0023] (2) The design of the angle between the centerline of the spring mounting groove and the radial direction of the base effectively "dilutes" the nonlinear effect caused by the square growth of centrifugal force at high speeds through force decomposition, making the braking force show a better linear relationship with the speed in the entire speed range. The establishment and release of the braking force is a continuous and stepless change process, and the control feel is smoother and more delicate;

[0024] (3) The matching arc angle between the sliding block and the spring mounting groove significantly reduces motion interference and stress concentration, ensures the smoothness and consistency of the floating magnet movement, and improves the durability and reliability of the mechanism under long-term repeated movement; in addition, by selecting springs with different spring coefficients for combination, the response characteristics of the braking force can be further fine-tuned. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an exploded view of the overall structure of the utility model.

[0026] Figure 2 It is an exploded view of the magnet assembly of the present invention.

[0027] Figure 3 It is a schematic diagram of the bottom structure of the base of the utility model.

[0028] Figure 4 is the structural schematic diagram of the sliding block of the utility model.

[0029] Figure 5 is the comparative diagram of different states of the sliding block of the utility model.

[0030] Figure 6 is the structural schematic diagram of the line wheel seat of the utility model.

[0031] Figure 7 is the overall structure section schematic diagram of the utility model.

[0032] In the figure: adjusting mechanism 1, adjusting knob 101, threaded column 102, line wheel seat 2, positioning column 201, connecting plate 202, embedding groove 203, magnet assembly 3, base 310, spring mounting groove 311, protruding block 312, sliding block 320, guide groove 321, spring 330, magnet array 340, bottom plate 350, bolt 360. DETAILED DESCRIPTION

[0033] In order to facilitate understanding the utility model, the following will combine with the description drawings and the preferred embodiment to make more comprehensive, detailed description to the utility model, but the protection scope of the utility model is not limited to the following specific embodiment.

[0034] As Figure 1 shown, the fishing reel floating magnetic brake device provided by the embodiment comprises a line wheel seat 2, a magnet assembly 3 built in the line wheel seat 2 and an adjusting mechanism 1 connected with the magnet assembly 3, the adjusting mechanism 1 drives the magnet assembly 3 to move up and down to adjust the depth of the magnet assembly 3 rotating into the line wheel, and then changes the area of the line wheel cutting the magnetic induction line, realizes the adjustment of the brake force of the line wheel, thereby presetting a fixed brake force level.

[0035] As Figures 2-4As shown, in the embodiment, the magnet assembly 3 comprises a base 310, a plurality of sliding blocks 320, a plurality of springs 330, a magnet array 340 and a bottom plate 350. The bottom end surface of the base 310 is circumferentially arrayed with three spring mounting grooves 311 protruding from the bottom end surface of the base 310 and in the shape of a rectangular frame with one end open, with the open end facing the inner side of the base 310. The three sliding blocks 320 are arranged one-to-one corresponding to the three spring mounting grooves 311, each sliding block 320 is provided with a guide groove 321 corresponding to the spring mounting groove 311, the width of the guide groove 321 is adapted to the width of the spring mounting groove 311, and the length of the guide groove 321 is greater than the length of the spring mounting groove 311, the spring mounting groove 311 is inserted into the guide groove 321 of the corresponding sliding block 320, so that the sliding block 320 can slide outward along the spring mounting groove 311. The three springs 330 are respectively accommodated in the corresponding spring mounting grooves 311, and the two ends thereof respectively abut against the inner wall of the spring mounting groove 311 and the inner wall of the guide groove 321 of the sliding block 320, when the sliding block 320 slides outward along the spring mounting groove 311, the spring 330 is compressed synchronously with the movement of the sliding block 320. The magnet array 340 is fixedly embedded on the radially outer side surface of the sliding block 320. The bottom plate 350 is fixedly connected with the bottom of the base 310 through bolts 360, and axially limits the sliding block 320.

[0036] Referring to Figure 5The working process of the utility model is as follows: before casting, the line cup is in a static state, at this time, multiple sliding blocks 320 are kept at a relatively far position from the line cup under the pre-pressure of springs 330, at this time, the gap between the magnet array 340 and the line cup is the largest, and the brake force is the smallest. In the casting moment, the fake bait flies out, driving the line cup to rotate at high speed. The line cup cuts the static magnetic field generated by the magnet array at high speed, according to Faraday's law of electromagnetic induction, eddy current will be generated in the line cup. The eddy current will generate an induced magnetic field which interacts with the original magnetic field, and the overall effect is an electromagnetic damping force (i.e. brake force) which hinders the movement of the line cup. At the same time, according to Maxwell's theory, this relative movement will also generate an electromagnetic attraction force which attracts the two closer. The higher the speed, the greater the electromagnetic attraction force. This increasing attraction force will act on the sliding block 320 and the magnet array 340, trying to overcome the pre-pressure of the spring 330, driving the sliding block 320 and the magnet array 340 to move axially to the line cup. The gap between the magnet and the line cup is reduced, so that the magnetic field strength in which the line cup is located is enhanced, thereby the brake force is significantly enhanced, more effectively inhibiting the rotational speed of the line cup; at the same time, the electromagnetic attraction force also becomes larger, which will continue to try to attract the magnet closer. Finally, the inner side wall of the guide groove 321 abuts against the spring mounting groove 311, limiting the final limit stroke of the sliding block 320 moving to the line cup direction, thereby ensuring that a preset minimum safety gap is maintained between the line cup. With the attenuation of the flying kinetic energy, the rotational speed of the line cup decreases, resulting in the weakening of the electromagnetic attraction force, which can no longer maintain balance with the spring force, so the spring force pushes the sliding block 320 to reset along the spring mounting groove 311, away from the line cup, until the sliding block returns to the inner starting point of the stroke again, restoring the initial state. The gap between the magnet and the line cup is increased, and the brake force is rapidly reduced, ensuring the smoothness of the flight end and reducing the risk of line explosion.

[0037] In the embodiment, the included angle a between the center line of the spring mounting groove 311 and the radial direction of the base 310 is an acute angle, through the design, the relationship between the compression amount of the spring and the rotational speed of the line wheel becomes more linear, and the growth of the brake force is also smoother and more controllable.

[0038] In the embodiment, the sliding block 320 is a fan ring structure, the axis of which coincides with the axis of the base 310, and the curvature radius of the outer peripheral wall thereof is the same as that of the outer peripheral wall of the base 310. The design makes the generated magnetic field uniformly distributed around the axis of the line cup, thereby eliminating the shaking or abnormal wear caused by uneven brake force and ensuring the stability and smoothness of the casting process.

[0039] In the embodiment, the stiffness coefficients of the three springs 330 can not be exactly the same, thereby further fine-tuning the response characteristics of the brake force.

[0040] Referring to Figure 3 , Figure 4In order to effectively solve the problem of stress concentration, in the embodiment, the corners of the spring mounting groove 311 farthest and closest to the center of the base 310 are arc-shaped, and the corners of the guide groove 321 on the sliding block 320 corresponding to the arc-shaped corners of the spring mounting groove 311 are arc-shaped corners matched with the arc-shaped corners.

[0041] As shown in Figure 1 , Figure 6 , Figure 7 In the embodiment, the adjusting mechanism 1 includes an adjusting knob 101 and a transmission assembly connected with the adjusting knob 101, and the transmission assembly is connected with the base 310 to drive the base 310 to move up and down. The transmission assembly includes a threaded column 102 with external threads, and the center of the base 310 is provided with a center hole axially extending through, and the inner wall of the center hole is provided with internal threads matched with the external threads on the threaded column 102, and the threaded column 102 is threadedly connected with the center hole on the base 310 after passing through the line wheel seat 2. A guide keying mechanism is arranged between the base 310 and the line wheel seat 2 to limit the rotation of the base 310 relative to the line wheel seat 2. In the embodiment, the upper end surface of the base 310 is provided with a protrusion 312 extending upward, and the line wheel seat 2 is provided with a matching slot 203 matched with the protrusion 312. The protrusion 312 is located in the slot 203, and the guide keying mechanism limiting the rotation of the base 310 is formed. In the embodiment, the threaded column 102 is a hollow structure, the center of the line wheel seat 2 is provided with a through hole matched with the threaded column 102, the through hole is provided with a positioning column 201 coaxially arranged therein, the outer diameter of the positioning column 201 is matched with the hollow inner diameter of the threaded column 102, the threaded column 102 is sleeved on the positioning column 201, and the bottom of the positioning column 201 is connected with the line wheel seat 2 through at least two spaced apart connecting plates 202.

[0042] With the help of the teachings present in the foregoing specification and associated drawings, those skilled in the art will appreciate still further modifications of the present application. Therefore, it is to be understood that the present application is not to be limited to the specific embodiments disclosed, and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. A fishing reel floating magnetic brake device, comprising a reel seat (2), a magnet assembly (3) built into the reel seat (2), and an adjustment mechanism (1) connected to the magnet assembly (3), wherein the adjustment mechanism (1) drives the magnet assembly (3) to move up and down to adjust the depth of the magnet assembly (3) screwed into the reel, thereby changing the area of ​​the reel cutting the magnetic flux lines, thereby achieving adjustment of the reel braking force, characterized in that: The magnet assembly (3) comprises a base (310), a plurality of sliding blocks (320), a plurality of springs (330), a magnet array (340) and a bottom plate (350). A plurality of spring mounting grooves (311) are fixed in an array along a circumferential direction on the bottom end surface of the base (310); the spring mounting grooves (311) protrude from the bottom end surface of the base (310) and are in the form of a rectangular frame structure with one end open, the open end of the structure facing the inner side of the base (310); The plurality of sliding blocks (320) are arranged in a one-to-one correspondence with the plurality of spring mounting grooves (311), and each sliding block (320) is provided with a guide groove (321) corresponding to the spring mounting groove (311), the width of the guide groove (321) is adapted to the width of the spring mounting groove (311), and the length is greater than the length of the spring mounting groove (311), and the spring mounting groove (311) is inserted into the guide groove (321) of the corresponding sliding block (320), so that the sliding block (320) can form an outward sliding stroke along the spring mounting groove (311); The plurality of springs (330) are arranged in a one-to-one correspondence with the plurality of spring mounting grooves (311), and each spring (330) is accommodated in the corresponding spring mounting groove (311), and its two ends respectively abut against the inner wall of the spring mounting groove (311) and the inner wall of the guide groove (321) of the sliding block (320), and when the sliding block (320) slides outward along the spring mounting groove (311), the spring (330) is compressed synchronously with the movement of the sliding block (320); The magnet array (340) is fixedly embedded on the radial outer surface of the sliding block (320); The bottom plate (350) is fixedly connected to the bottom of the base (310) to form an axial limit for the sliding block (320).

2. The fishing reel floating magnetic brake device according to claim 1, characterized in that: The center line of the spring mounting groove (311) forms an acute angle with the radial direction of the base (310).

3. The fishing reel floating magnetic brake device according to claim 1, characterized in that: The sliding block (320) is a fan-shaped ring structure, the axis of which coincides with the axis of the base (310), and the curvature radius of its outer peripheral wall is the same as the curvature radius of the outer peripheral wall of the base (310).

4. The fishing reel floating magnetic brake device according to claim 1, wherein: The number of the spring mounting grooves (311) is three and they are evenly distributed on the bottom end surface of the base (310).

5. The fishing reel floating magnetic brake device according to claim 1, characterized in that: The spring rates of the plurality of springs (330) are not completely the same.

6. The fishing reel floating magnetic brake device according to claim 1, characterized in that: The corners of the ends of the spring installation groove (311) that are farthest and closest to the center of the base (310) are arc angles, and the corners of the guide groove (321) on the sliding block (320) at positions corresponding to the arc angles of the spring installation groove (311) are arc angles adapted thereto.

7. A fishing reel floating magnetic brake device according to any one of claims 1 to 6, characterized in that: The adjustment mechanism (1) comprises an adjustment knob (101) and a transmission assembly connected to the adjustment knob (101), wherein the transmission assembly is connected to the base (310) to drive the base (310) to move up and down.

8. The fishing reel floating magnetic brake device according to claim 7, characterized in that: The transmission assembly includes a threaded column (102) with an external thread, the center of the base (310) is provided with an axially penetrating center hole, the inner wall of the center hole is provided with an internal thread matching the external thread on the threaded column (102), and the threaded column (102) is threadedly connected to the center hole on the base (310) after passing through the reel seat (2); a guide keying mechanism is provided between the base (310) and the reel seat (2) for limiting the rotation of the base (310) relative to the reel seat (2).

9. The fishing reel floating magnetic brake device according to claim 8, characterized in that: The threaded column (102) is a hollow structure, a through hole matching the threaded column (102) is provided at the center of the reel seat (2), a coaxially arranged positioning column (201) is provided in the through hole, the outer diameter of the positioning column (201) matches the hollow inner diameter of the threaded column (102), the threaded column (102) is sleeved on the positioning column (201), and the bottom of the positioning column (201) is connected to the reel seat (2) via at least two spaced connecting plates (202).

10. The fishing reel floating magnetic brake device according to claim 8, characterized in that: The upper end surface of the base (310) is provided with a protrusion (312) extending upward, and the reel seat (2) is provided with an embedding groove (203) matching the protrusion (312); the protrusion (312) is located in the embedding groove (203), forming a guide keying mechanism for limiting the rotation of the base (310).

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