Magnetic brake system for water drip wheel

Abstract

The utility model discloses a water drop reel magnetic brake system which comprises a brake bowl arranged on a winding wheel shaft, a magnet assembly arranged outside the brake bowl and an adjusting assembly for adjusting the radial distance between the magnet assembly and the brake bowl, and the brake bowl is arranged on one side of a winding wheel and rotates along with the winding wheel shaft. The adjusting assembly comprises a retarding cam and a retarding rotary knob driving the retarding cam to rotate, the retarding rotary knob is connected with the winding wheel cover, the magnet assembly comprises two magnet mounting seats and two arc-shaped magnets, the arc-shaped magnets are assembled on the magnet mounting seats, positioning columns are arranged on the magnet mounting seats, and the arc-shaped magnets are arranged on the positioning columns. The positioning column penetrates through a linear positioning groove formed in the winding wheel cover and then falls into a spiral groove in the retarding cam. The water drip wheel magnetic brake system has the advantages of being stable in brake force, large in brake force adjusting range, high in adjusting precision and the like.

Description

Technical Field

[0001] This utility model belongs to the field of fishing gear, specifically relating to a magnetic braking system for baitcasting reels. Background Technology

[0002] Magnetic braking systems are used to provide varying braking forces to the reel when casting baitcasting lines, preventing line breakage during casting. Traditional magnetic braking systems use multiple circular magnets that move along the axial direction of the reel. Increasing or decreasing the distance between the magnets and the reel adjusts the magnetic force. However, the magnet holders in these systems are prone to tilting, leading to unstable braking force, affecting casting distance, and potentially causing line breakage. Another type of magnetic braking system mounts the magnet on a slide block with its bottom inside the reel. A spring automatically adjusts the slide block's radial movement along the reel's axis, thus regulating the distance between the magnet and the reel's inner wall and adjusting the braking force. The braking force of this structure is relatively stable, but it has the following defects: (1) The distance between the magnet and the inner wall of the winding wheel is adjusted only by the spring, so the braking force adjustment range is small and the control accuracy is low; (2) The magnet is set inside the winding wheel. Due to the limitation of the winding wheel diameter, the distance between the magnet and the inner wall of the winding wheel is small for small diameter winding wheels, so the braking force adjustment range is small and cannot meet the braking force adjustment requirements. Utility Model Content

[0003] The purpose of this invention is to overcome the problems of unstable braking force, small adjustment range, and low adjustment accuracy of the existing water droplet wheel magnetic braking system, and to provide a water droplet wheel magnetic braking system with stable braking force, large braking force adjustment range, and high adjustment accuracy.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] The magnetic braking system for a baitcasting reel includes a brake cup mounted on the reel shaft, a magnet assembly disposed outside the brake cup, and an adjustment assembly for adjusting the radial distance between the magnet assembly and the brake cup. The brake cup is located on one side of the reel and rotates with the reel shaft. The adjustment assembly includes a deceleration cam and a deceleration knob that drives the deceleration cam to rotate. The deceleration knob is connected to the reel cover. The magnet assembly includes two magnet mounting seats and two arc-shaped magnets. The arc-shaped magnets are mounted on the magnet mounting seats. The magnet mounting seats are provided with positioning posts. The positioning posts pass through a straight positioning groove on the reel cover and fall into a spiral groove on the deceleration cam.

[0006] In a preferred embodiment, the winding reel is equipped with cam A and cam B. The winding reel has a reel flat section and a slotted groove in the cam A assembly section. The cam A and winding reel assembly section has a cam flat section and a limiting rib. The cam flat section cooperates with the reel flat section, and the limiting rib cooperates with the slotted groove. Cam inclined surface A and cam inclined surface B are respectively provided on the opposite surfaces of cam A and cam B, and cam inclined surface A and cam inclined surface B cooperate with each other. A buckle is provided on the opposite surface of cam B and brake cup. A fixing groove is provided at the end of brake cup near cam B, and the buckle is installed in the fixing groove. An elastic component for limiting and resetting brake cup is provided on the winding reel at the end of brake cup away from cam B.

[0007] More preferably, the elastic component includes a brake cup compression spring and a compression spring retaining ring disposed on the winding reel shaft, one end of the brake cup compression spring abutting against the brake cup and the other end abutting against the compression spring retaining ring, and an open retaining ring mounted on the winding reel shaft limiting the compression spring retaining ring.

[0008] More preferably, the brake cup is provided with an open retaining ring mounting hole.

[0009] As a preferred embodiment, the arc-shaped magnet is an integral semi-circular magnet with multiple N poles and S poles inside.

[0010] As a preferred embodiment, the magnet mounting base is provided with a semi-open magnet mounting slot, the arc-shaped magnet is placed in the magnet mounting slot, and the annular magnet cover plate assembled on the winding reel cover limits the open side of the magnet mounting slot.

[0011] As a preferred embodiment, the winding reel cover is provided with a sound-generating spring, and the inner wall of the deceleration cam is provided with sound-generating teeth, which collide with the sound-generating spring to produce sound.

[0012] As a preferred embodiment, the winding reel cover has a bearing mounting cavity at its center, and the bearing supporting the end of the winding reel shaft is assembled in the bearing mounting cavity, which is located inside the brake cup.

[0013] More preferably, the brake cup extends into the interior of the spool at the end near the spool.

[0014] As a preferred embodiment, a locking switch is provided between the reel cover and the side cover.

[0015] The beneficial effects of this utility model are: (1) The radial distance between the magnet assembly and the brake cup is adjusted by adjusting the assembly. The closer the magnet assembly is to the brake cup, the greater the braking force. The farther away the magnet assembly is from the brake cup, the smaller the braking force. The adjustment range is large and the adjustment accuracy is high. (2) The design of cam A, cam B and elastic assembly can automatically compensate the braking force according to the speed of the pulley, realize automatic braking force adjustment, and further increase the adjustment accuracy. (3) The brake cup, magnet assembly and other components are cleverly designed and can effectively save space. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional view of a water droplet wheel magnetic braking system;

[0018] Figure 2 This is an exploded view of a water droplet wheel magnetic braking system;

[0019] Figure 3 This is a diagram illustrating the adjustment of the magnetic force.

[0020] Figure 4 This is a schematic diagram of the brake cup opening retaining ring installation;

[0021] Figure 5 This is a schematic diagram of an arc-shaped magnet structure;

[0022] Figure 6 This is a schematic diagram of the structure of the winding reel shaft;

[0023] Figure 7 This is a schematic diagram of the structure of cam A;

[0024] Figure 8 This is a schematic diagram of the structure of cam B;

[0025] Figure 9 and Figure 10 This is a schematic diagram of the magnet assembly.

[0026] Figure 11 and Figure 12 This is a schematic diagram of the winding reel cover;

[0027] Figure 13 This is a schematic diagram of the structure of the deceleration cam and the sound-generating reed;

[0028] Figure 14 This is a schematic diagram of the brake cup structure.

[0029] In the diagram: 1. Reel, 2. Reel axle, 2a. Axle flat position, 3. Cam A, 3a. Cam flat position, 3b. Cam inclined surface A, 3c. Limiting rib, 4. Cam B, 4a. Cam inclined surface B, 4b. Buckle, 5. Brake cup, 5a. Open retaining ring mounting hole, 5b. Fixing groove, 6. Magnet cover plate, 6a. Screw, 7. Magnet assembly, 7a. Arc magnet, 7b. Magnet mounting base, 7c. Positioning post, 7d. Magnet mounting groove, 8. Brake cup compression spring, 9. Compression spring retaining ring, 10. Open retaining ring, 11. Retaining spring, 12. Locking switch, 13. Bearing, 14. Sound-emitting spring, 15. Washer, 16. Screw, 17. Slowing knob, 18. Slowing cam, 18a. Spiral groove, 18b. Sound-emitting teeth, 19. Reel cover, 19a. Positioning groove, 19b. Screw, 19c. Bearing mounting cavity, 20. Side cover, 21. Sound-emitting retaining ring. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] See Figure 1 and Figure 2 The magnetic braking system for a baitcasting reel includes a brake cup 5 mounted on a reel shaft 2, a magnet assembly 7 disposed outside the brake cup 5, and an adjusting assembly for adjusting the radial distance between the magnet assembly 7 and the brake cup 5. The brake cup 5 is located on one side of the reel 1 and rotates together with the reel shaft 2. The adjusting assembly includes a deceleration cam 18 and a deceleration knob 17 that drives the deceleration cam 18 to rotate. The deceleration knob 17 is connected to a reel cover 19. The magnet assembly 7 includes two magnet mounting seats 7b and two arc-shaped magnets 7a. The arc-shaped magnets 7a are mounted on the magnet mounting seats 7b. A positioning post 7c is provided on the magnet mounting seat 7b. The positioning post 7c passes through a straight positioning groove 19a on the reel cover 19 and falls into a spiral groove 18a on the deceleration cam 18. (See also: Straight positioning groove 19a) Figure 11 See spiral groove 18a Figure 13 .

[0032] See Figure 1 , Figure 6 , Figure 7 and Figure 8The winding reel shaft 2 is equipped with cams A3 and B4. The winding reel shaft 2 has a shaft flat section 2a and a slotted groove at the cam A3 assembly section. The cam A3 assembly section with the winding reel shaft 2 has a cam flat section 3a and a limiting rib 3c. The cam flat section 3a cooperates with the shaft flat section 2a, and the limiting rib 3c cooperates with the slotted groove, ensuring that cam A3 rotates together with the winding reel 1 assembly. Cam inclined surfaces A3b and B4a are respectively provided on the opposite surfaces of cam A3 and cam inclined surfaces B4a, which cooperate with each other. A latch 4b is provided on the opposite surface of cam B4 and brake cup 5. A fixing groove 5b is provided at the end of brake cup 5 near cam B4, and the latch 4b is installed in the fixing groove 5b, ensuring that cam B4 and brake cup 5 move together. An elastic component for limiting and resetting brake cup 5 is provided on the winding reel shaft 2 at the end of brake cup 5 away from cam B4.

[0033] In this embodiment, the elastic component includes a brake cup compression spring 8 and a compression spring retaining ring 9 disposed on the winding reel shaft 2. One end of the brake cup compression spring 8 abuts against the brake cup 5, and the other end abuts against the compression spring retaining ring 9. An open retaining ring 10 mounted on the winding reel shaft 2 limits the movement of the compression spring retaining ring 9. An open retaining ring mounting hole 5a is provided on the side wall of the brake cup 5, see [reference]. Figure 4 and Figure 14 The open retaining ring mounting hole 5a facilitates the installation of the open retaining ring 10 and reduces the weight of the brake cup 5.

[0034] In this embodiment, see Figure 5 The arc-shaped magnet 7a is an integral semi-circular magnet, with multiple N poles 71 and S poles 72 inside. The integral semi-circular magnet is easy to install, and the magnetic field strength formed by two integral semi-circular magnets is large.

[0035] In this embodiment, see Figure 1 , Figure 9 and Figure 10 The magnet mounting base 7b is provided with a semi-open magnet mounting groove 7d, and the arc-shaped magnet 7a is placed in the magnet mounting groove 7d. The annular magnet cover plate 6, which is assembled on the winding reel cover 19, limits the open side of the magnet mounting groove 7d. This structure makes magnet installation and positioning simple.

[0036] In this embodiment, see Figure 1 and Figure 13 A sound-emitting spring 14 is provided on the reel cover 19, and sound-emitting teeth 18b are provided on the inner wall of the deceleration cam 18. The sound-emitting teeth 18b collide with the sound-emitting spring 14 to produce sound. A sound-emitting retaining ring 21 is provided on one side of the sound-emitting spring 14 to prevent the sound-emitting spring 14 from rubbing against the deceleration knob 17. When the deceleration knob 17 is rotated, driving the deceleration cam 18 to rotate, the sound-emitting teeth collide with the sound-emitting spring 14 to produce sound, reminding the user to adjust the braking force.

[0037] Bearings supporting the winding reel shaft 2 are provided at both ends of the winding reel shaft 2. A bearing mounting cavity 19c is provided in the center of the winding reel cover 19. (See also...) Figure 12 The bearing supporting the end of the winding reel shaft 2 is assembled in the bearing mounting cavity 19c, and after assembly, the bearing mounting cavity 19c is located inside the brake cup 5. The portion of the brake cup 5 near the winding reel 1 extends into the interior of the winding reel 1. The structure in which the bearing mounting cavity 19c is located inside the brake cup 5 and the portion of the brake cup 5 extends into the interior of the winding reel 1 can shorten the length of the magnetic braking system in the direction of the winding reel shaft 2, resulting in a compact teardrop wheel structure.

[0038] A locking switch 12 is provided between the reel cover 19 and the side cover 20. The locking switch 12 fixes the side cover 20 and the reel cover 19 together, and the side cover 20 can be opened and locked by the locking switch 12.

[0039] During assembly, cam A3 is installed onto the winding reel shaft 2. The cam flat portion 3a of cam A3 mates with the shaft flat portion 2a of the winding reel shaft 2. The limiting rib 3c mates with the empty slot, ensuring that cam A3 rotates together with the winding reel 1 assembly. The latch 4b of cam B4 is installed onto the fixing slot 5b of brake cup 5, ensuring that cam B4 and brake cup 5 move together. The cam inclined surface A3b of cam A3 mates with the cam inclined surface B4a of cam B4. Brake cup compression spring 8 and compression spring retaining ring 9 are installed on brake cup 5. Open retaining ring 10 is inserted into the open retaining ring mounting hole 5a on brake cup 5 to limit and fix compression spring retaining ring 9. Gasket 15 and bearing 13 are installed in bearing mounting cavity 19c of reel cover 19 and fixed with retaining spring 11. Positioning post 7c on magnet assembly 7 is installed in positioning groove 19a on reel cover 19. Magnet cover plate 6 is installed on reel cover 19 and fixed with screw 6a. Locking switch 12, deceleration cam 18, sound-emitting spring 14, sound-emitting retaining ring 21, and deceleration knob 17 are installed on reel cover 19 and fixed with screw 16. The assembled reel cover 19 assembly is installed on side cover 20 and fixed with screw 19b.

[0040] This utility model adjusts the braking force, such as Figure 3As shown, in (a), the magnet is closest to the brake cup 5 and has the greatest magnetic force, while in (b), the magnet is farthest from the brake cup 5 and has the least magnetic force. When the slow-speed knob 17 is rotated, the positioning post 7c on the magnet assembly 7 slides in the positioning groove 19a. The arc-shaped magnet 7a has multiple N poles and S poles. The closer the magnet is to the brake cup 5, the greater the braking force; the farther away the magnet is from the brake cup 5, the smaller the braking force. Automatic braking force adjustment: When casting, the reel 1 rotates, and the brake cup 5 moves towards the magnet due to the inertia of the reel 1's rotation. When the inertial force of the reel's rotation is greater than the pressure applied to the brake cup 5 by the brake cup spring 8, the cam inclined surface A3b of cam A3 pushes the cam inclined surface B4a of cam B4, causing the brake cup 5 to move towards the magnet. At this time, the effective length of the brake cup 5 cutting magnetic field lines in the magnetic field increases, and the braking force increases. When the rotation speed of the reel 1 slows down, the brake cup 5 moves away from the magnet under the action of the brake cup spring 8. At this time, the effective length of the brake cup 5 cutting magnetic field lines in the magnetic field decreases, and the braking force decreases. Cam A3 and cam B4 are inclined surfaces, making it easier for the brake cup 5 to move towards the magnet.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A teardrop wheel magnetic braking system, characterized in that: The device includes a brake cup mounted on the winding reel shaft, a magnet assembly mounted outside the brake cup, and an adjustment assembly for adjusting the radial distance between the magnet assembly and the brake cup. The brake cup is mounted on one side of the winding reel and rotates with the winding reel shaft. The adjustment assembly includes a deceleration cam and a deceleration knob that drives the deceleration cam to rotate. The deceleration knob is connected to the winding reel cover. The magnet assembly includes two magnet mounting seats and two arc-shaped magnets. The arc-shaped magnets are mounted on the magnet mounting seats. The magnet mounting seats are provided with positioning posts. The positioning posts pass through a straight positioning groove on the winding reel cover and fall into a spiral groove on the deceleration cam.

2. The water droplet wheel magnetic brake system according to claim 1, characterized in that: The winding reel is equipped with cam A and cam B. The winding reel has a reel flat section and a slotted groove in the cam A assembly section. The cam flat section and the winding reel assembly section of cam A have a cam flat section and a limiting rib. The cam flat section cooperates with the reel flat section, and the limiting rib cooperates with the slotted groove. Cam inclined surface A and cam inclined surface B are respectively provided on the opposite surfaces of cam A and cam B. Cam inclined surface A and cam inclined surface B cooperate with each other. A buckle is provided on the opposite surface of cam B and brake cup. A fixing groove is provided at the end of brake cup near cam B. The buckle is installed in the fixing groove. An elastic component for limiting and resetting brake cup is provided on the winding reel at the end of brake cup away from cam B.

3. The water droplet wheel magnetic brake system according to claim 2, characterized in that: The elastic component includes a brake cup compression spring and a compression spring retaining ring disposed on the winding reel shaft. One end of the brake cup compression spring abuts against the brake cup, and the other end abuts against the compression spring retaining ring. An open retaining ring mounted on the winding reel shaft limits the movement of the compression spring retaining ring.

4. The water droplet wheel magnetic brake system according to claim 3, characterized in that: The brake cup is provided with an open retaining ring mounting hole.

5. The water droplet wheel magnetic brake system of claim 1, wherein: The arc-shaped magnet is a single semi-circular magnet with multiple N and S poles inside.

6. The water droplet wheel magnetic brake system of claim 1, wherein: The magnet mounting base is provided with a semi-open magnet mounting slot, in which an arc-shaped magnet is placed. A ring-shaped magnet cover plate mounted on the winding reel cover limits the open side of the magnet mounting slot.

7. The water droplet wheel magnetic brake system of claim 1, wherein: The winding reel cover is provided with a sound-producing spring, and the inner wall of the deceleration cam is provided with sound-producing teeth. The sound-producing teeth collide with the sound-producing spring to produce sound.

8. The water droplet wheel magnetic braking system according to claim 1, characterized in that: The center of the reel cover has a bearing mounting cavity, and the bearing supporting the end of the reel shaft is assembled in the bearing mounting cavity, which is located inside the brake cup.

9. The water droplet wheel magnetic braking system according to claim 8, characterized in that: The brake cup extends into the interior of the spool near one end.

10. The water droplet wheel magnetic brake system of claim 1, wherein: A locking switch is provided between the reel cover and the side cover.

Images