Fishing reel magnetic brake device

Abstract

The utility model relates to the technical field of fishing line wheels, in particular to a magnetic brake device of a fishing line wheel, which comprises a line wheel end cover, a fixed seat arranged below the line wheel end cover and a line cup covered below the fixed seat and rotationally arranged relative to the line wheel end cover, the outer side of the shaft barrel part is sleeved with a magnetic base driven by a lifting driving piece in the axial direction, a plurality of elastic claw plates are fixed to the lower end of the magnetic base in the circumferential direction, brake magnets are fixed to the outer sides of the elastic claw plates, and the lower end of the shaft barrel part is provided with an external expansion body which is matched with the elastic claw plates in the axial direction to slide and enables the elastic claw plates to expand in the radial direction. Compared with the prior art, the magnetic acting force threshold value of the device is obviously improved by one gear, and therefore the speed reduction effect of the whole device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fishing reels, in particular to a magnetic brake device for a fishing reel. Background Art

[0002] Fishing reel brake devices are mainly divided into centrifugal brake devices and magnetic brake devices, among which magnetic brake devices are widely used due to their high stability.

[0003] The brake magnets in existing magnetic brake devices are mostly installed vertically on the magnet mounting seat. Driven by the height adjustment component, the magnet mounting seat enters and exits the inner cavity of the wire cup, thereby changing the number of magnetic flux lines (magnetic force) acting on the wire cup by the brake magnet, thereby achieving the purpose of adjusting the braking force. However, this traditional magnetic brake device has a too simple way of adjusting the position of the brake magnet, resulting in a limited maximum number of magnetic flux lines acting on the wire cup, which makes the overall magnetic force threshold low, and cannot obtain a greater braking force, limiting its own deceleration effect. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a fishing reel magnetic brake device, which enhances the overall magnetic force threshold and has a better deceleration effect.

[0005] The technical solution of the utility model is: a fishing reel magnetic brake device, including a reel end cover, a fixed seat installed below the reel end cover, and a spool covered below the fixed seat and rotatably arranged relative to the reel end cover, the bottom of the fixed seat is formed with a shaft cylinder portion, the outer side of the shaft cylinder portion is sleeved with a magnetic seat driven axially by a lifting drive, the lower end of the magnetic seat is circumferentially fixed with a plurality of elastic claw plates, the outer side of the elastic claw plates is fixed with a brake magnet, and the lower end of the shaft cylinder portion is provided with an outer expansion body that slides with the elastic claw plates in the axial direction and expands the elastic claw plates in the radial direction. By arranging the outer expansion body under the shaft cylinder portion, when the lifting drive drives the magnetic seat in the axial direction away from the reel end cover, the elastic claw plates on the magnetic seat expand radially while descending, so that the brake magnet approaches the spool in the axial and radial directions at the same time, effectively increasing the maximum limit of the magnetic flux lines acting on the spool, that is, enhancing the overall magnetic force threshold, and ensuring the deceleration effect of the magnetic brake device.

[0006] The outer expansion body is a tapered tube which is sleeved and fixed on the lower end of the shaft cylinder portion, and the outer side of the tapered tube has a tapered surface which gradually widens in a direction away from the end cover of the reel.

[0007] The inner side of the tapered tube is provided with a limiting ring which contacts the end surface of the shaft cylinder portion.

[0008] The outward expansion body is a conical portion formed at the lower end of the shaft cylinder portion, and the outer side of the conical portion has a conical surface that gradually widens in a direction away from the reel end cover.

[0009] The single-side taper of the conical surface is 2-4°.

[0010] An inner cavity magnet is fixed in the outer expansion body, a sleeve portion is formed in the middle of the wire cup, and the sleeve portion extends upward to the inner side of the outer expansion body to cut the magnetic flux lines generated by the inner cavity magnet. The coordinated arrangement of the inner cavity magnet and the sleeve portion provides an initial braking force for the entire brake device, further increasing the magnetic force threshold of the brake device.

[0011] The lifting drive component includes a lifting cylinder and a knob. An adjustment gap is provided between the wire cup end cover and the fixed seat. The lifting cylinder is located in the adjustment gap, and the lower end of the lifting cylinder is rotatably connected to a rotating shaft fixed to the top of the fixed seat. The upper end of the lifting cylinder passes through the wire wheel end cover and is fixedly connected to the knob. A spiral groove is provided on the outer side of the lifting cylinder. Two sliding rods are formed on the top of the magnetic seat, which penetrate the fixed seat upward and are arranged side by side. A sliding block matching the spiral groove is formed on one of the sliding rods.

[0012] The outer side of the upper end of the conical tube or / and the inner side of the lower end of the elastic claw plate are provided with a guide conical surface, which can ensure that the elastic claw plate smoothly transitions to the conical surface outside the conical tube to complete the radial expansion action.

[0013] The beneficial effects of the utility model are as follows: in this scheme, an outer expansion body is arranged under the shaft tube part. When the lifting drive member drives the magnetic seat along the axial direction away from the end cover of the reel, the elastic claw plate on the magnetic seat expands radially while descending, so that the brake magnet approaches the spool in the axial and radial directions at the same time, effectively increasing the maximum limit of the magnetic flux lines acting on the spool, that is, enhancing the overall magnetic force threshold, and ensuring the deceleration effect of the magnetic brake device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the disassembled structure of the utility model;

[0016] Figure 3 It is a disassembly schematic diagram of the fixed seat, the magnetic seat and the tapered tube in the utility model.

[0017] Figure numerals: 1. reel end cover; 2. fixing seat; 201. shaft cylinder; 202. rotating shaft; 3. spool; 301. sleeve; 4. lifting drive member; 401. knob; 402. lifting cylinder; 4201. spiral groove body; 5. magnetic seat; 501. elastic claw plate; 502. sliding rod; 5021. slider; 6. brake magnet; 7. conical tube; 8. inner cavity magnet; 9. wheel axle; 10. reel frame. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution in the utility model, the technical solution in the utility model is clearly and completely described below in conjunction with the accompanying drawings. Other embodiments obtained by those skilled in the art without making any creative work should all fall within the protection scope of the utility model.

[0019] like Figure 1 and Figure 2 As shown, the utility model provides a fishing reel magnetic brake device, including a reel end cover 1, a fixed seat 2 installed below the reel end cover 1, and a spool 3 covered below the fixed seat 2 and rotatably arranged relative to the reel end cover 1. Specifically, as in the prior art, a reel frame 10 is cooperatively installed on the outer side of the reel end cover 1, and both ends of the spool 3 are rotatably installed on the reel frame 10 through the rotating grooves on the reel frame 10, thereby realizing the rotational connection between the spool 3 and the reel end cover 1; a shaft cylinder portion 201 is formed at the bottom of the fixed seat 2, and a magnetic seat 5 driven axially by a lifting drive member 4 is sleeved on the outer side of the shaft cylinder portion 201, and a plurality of elastic claw plates 501 are fixed to the lower end of the magnetic seat 5 in the circumferential direction, and a brake magnet 6 is fixed to the outer side of the elastic claw plate 501, and the brake magnet 6 generates magnetic lines of force acting on the inner wall of the spool 3, and a sliding engagement with the elastic claw plate 501 is provided at the lower end of the shaft cylinder portion 201. The outer expansion body that moves and causes the elastic claw plate 501 to expand radially; specifically in the embodiment, the magnetic seat 5 is an injection-molded plastic cylinder structure, and the lower end of the cylinder of the magnetic seat 5 is evenly distributed with a plurality of long grooves along the circumferential direction, and the cylinder part between two adjacent long grooves forms the above-mentioned elastic claw plate 501 with a certain elasticity; preferably, an embedding groove is provided on the outer side of the elastic claw plate 501, and the brake magnet can be fixed in the embedding groove by gluing; when the lifting drive member 4 is used to drive the magnetic seat 5 to descend (move in the direction away from the reel end cover 1), the elastic claw plate 501 on the magnetic seat 5 cooperates with the outer expansion body and expands radially at the same time during the descent process. During this process, the brake magnet 6 on the outer side of the elastic claw plate 501 will approach the inner wall of the spool 3 in both the axial and radial directions at the same time, thereby effectively increasing the maximum limit of the magnetic flux lines acting on the spool 3, that is, enhancing the overall magnetic force threshold, and ensuring the deceleration effect of the magnetic brake device.

[0020] like Figure 2 and Figure 3The lifting drive member 4 includes a lifting cylinder 402 and a knob 401. There is an adjustment gap between the end cover of the wire cup 3 and the fixed seat 2. The lifting cylinder 402 is located in the adjustment gap, and the lower end of the lifting cylinder 402 is rotatably connected to the rotating shaft 202 fixed on the top of the fixed seat 2. The upper end of the lifting cylinder 402 passes through the end cover 1 of the wire wheel and is fixedly connected to the knob 401. A spiral groove 4201 is provided on the outer side of the lifting cylinder 402. Two slide bars 502 that penetrate the fixed seat 2 upward and are arranged side by side are formed on the top of the magnetic seat 5. A slider 5021 that matches the spiral groove 4201 is formed on one of the slide bars 502. The lifting cylinder 402 is driven to rotate by the knob 401 to realize the movement of the slider 5021 in the spiral groove 4201, thereby driving the slider 502 to move vertically, completing the height adjustment of the magnetic seat 5 at the lower end of the slider 502, and having good adjustment accuracy.

[0021] In this embodiment, the outer expansion body is a conical tube 7 which is sleeved and fixed on the lower end of the shaft cylinder portion 201, and the outer side of the conical tube 7 has a conical surface which gradually widens in the direction away from the reel end cover 1; preferably, the inner side of the conical tube 7 has a limiting ring which contacts the end surface of the shaft cylinder portion 201, and the limiting ring limits the length of the shaft cylinder portion 201 inserted into the conical tube 7, thereby quickly completing the assembly of the conical tube 7; in the selection of the fixing method, the conical tube 7 can be fixed to the outer side of the shaft cylinder portion 201 by bonding, and can also be fixed by plugging in by setting an inner diameter size which is interference fit with the outer diameter size of the shaft cylinder portion 201.

[0022] In order to ensure that the elastic claw plate 501 can smoothly transition to the conical surface on the outside of the conical tube 7 and complete the subsequent radial expansion action, a guide cone surface is provided on the outside of the upper end of the conical tube 7 and / or the inside of the lower end of the elastic claw plate 501, that is, the guide cone surface is only provided on the outside of the upper end of the conical tube 7, or the guide cone surface is only provided on the inside of the lower end of the elastic claw plate 501. Of course, the guide cone surface can also be provided on the outside of the upper end of the conical tube 7 and the inside of the lower end of the elastic claw plate 501 at the same time, and the taper of the guide cone surface is greater than the taper of the cone core surface.

[0023] In some other embodiments, the outward expansion body is a conical portion formed at the lower end of the shaft tube portion 201 , and the outer side of the conical portion has a conical surface that gradually widens in a direction away from the reel end cover 1 .

[0024] Further preferably, the unilateral taper of the conical surface is 2-4°, and the above taper design is to ensure that the brake magnet 6 on the outside of each elastic claw plate 501 can maximize the size of the maximum outer circle formed by the brake magnet 6 after expansion without interfering with the wire cup 3. For example, if the inner diameter of the existing wire cup 3 is 16mm, the lifting height that can be achieved by the lifting drive 4 is 4mm, and when the magnetic seat 5 is in the initial position, the outer circle size surrounded by each brake magnet 6 is 15mm. According to the above taper range, the maximum outer circle size formed after expansion is within the range of 15.3-15.56mm, which is smaller than the inner diameter of the wire cup 3.

[0025] Further preferably, Figure 1 and Figure 2 As shown, an inner cavity magnet 8 is fixed in the outer expansion body, a sleeve portion 301 is formed in the middle of the wire cup 3, and the sleeve portion 301 extends upward to the inner side of the outer expansion body, for cutting the magnetic flux lines generated by the inner cavity magnet 8. Specifically in the embodiment, the inner cavity magnet is a ring magnet, which is fixed to the inner side of the outer expansion body by gluing, so that under the cooperation of the inner cavity magnet 8 and the sleeve portion 301, an initial braking force is provided for the entire brake device, thereby further improving the magnetic force threshold of the brake device.

[0026] When implementing the technical solution, the above-mentioned brake device is installed on the fishing reel. At this time, the sleeve part 301 of the spool 3 and the shaft tube part 201 of the fixing seat 2 are coaxially arranged. The wheel axle 9 of the fishing reel passes through the spool frame 10 and the sleeve part 301 in sequence and is rotatably connected with the shaft tube part 201 via the bearing. Due to the existence of the inner cavity magnet 8, as the spool 3 rotates when casting, the upper end of the sleeve part 301 of the spool 3 cuts the magnetic flux lines of the inner cavity magnet 8. The braking force generated here is the initial braking force of the entire device. On this basis, the subsequent braking force is increased, and the knob 401 is rotated to drive the magnetic seat 5 to move downward. At this time, the elastic The claw plate 501 slides along the conical surface of the conical tube 7, and the brake magnet 6 on the outside of the elastic claw plate 501 is displaced in both axial and radial directions relative to the inner wall of the wire cup 3. Since the magnetic flux lines are denser at the position closer to the surface of the brake magnet 6, compared with the prior art, when the magnetic seat 5 is lowered to the same height, the number of magnetic flux lines of the brake magnet 6 cut by the wire cup 3 of the device is significantly increased, and the magnetic force generated by it also increases accordingly. Combined with the original initial braking force, the magnetic force threshold of the device is significantly increased by one gear, thereby ensuring the deceleration effect of the entire device.

Claims

1. A fishing reel magnetic brake device, comprising a reel end cover, a fixing seat installed below the reel end cover, and a spool covered below the fixing seat and rotatably arranged relative to the reel end cover, wherein a shaft cylinder portion is formed at the bottom of the fixing seat, and a magnetic seat driven axially by a lifting drive member is sleeved on the outer side of the shaft cylinder portion, characterized in that: A plurality of elastic claw plates are fixed to the lower end of the magnetic seat along the circumferential direction, a brake magnet is fixed to the outer side of the elastic claw plate, and an outer expansion body is provided at the lower end of the shaft cylinder part to slide with the elastic claw plate in the axial direction and to expand the elastic claw plate in the radial direction.

2. A fishing reel magnetic brake device according to claim 1, characterized in that: The outer expansion body is a tapered tube which is sleeved and fixed on the lower end of the shaft cylinder portion, and the outer side of the tapered tube has a tapered surface which gradually widens in a direction away from the end cover of the reel.

3. A fishing reel magnetic brake device according to claim 2, characterized in that: The inner side of the tapered tube is provided with a limiting ring which contacts the end surface of the shaft cylinder portion.

4. A fishing reel magnetic brake device according to claim 1, characterized in that: The outward expansion body is a conical portion formed at the lower end of the shaft cylinder portion, and the outer side of the conical portion has a conical surface that gradually widens in a direction away from the reel end cover.

5. A fishing reel magnetic brake device according to claim 2 or 4, characterized in that: The single-side taper of the conical surface is 2-4°.

6. A fishing reel magnetic brake device according to claim 1, 2 or 4, characterized in that: An inner cavity magnet is fixed in the outer expansion body, a shaft sleeve portion is formed in the middle of the wire cup, and the shaft sleeve portion extends upward to the inner side of the outer expansion body for cutting the magnetic flux lines generated by the inner cavity magnet.

7. A fishing reel magnetic brake device according to claim 1, 2 or 4, characterized in that: The lifting drive component includes a lifting cylinder and a knob. An adjustment gap is provided between the wire cup end cover and the fixed seat. The lifting cylinder is located in the adjustment gap, and the lower end of the lifting cylinder is rotatably connected to a rotating shaft fixed to the top of the fixed seat. The upper end of the lifting cylinder passes through the wire wheel end cover and is fixedly connected to the knob. A spiral groove is provided on the outer side of the lifting cylinder. Two sliding rods are formed on the top of the magnetic seat, which penetrate the fixed seat upward and are arranged side by side. A sliding block matching the spiral groove is formed on one of the sliding rods.

8. A fishing reel magnetic brake device according to claim 2 or 3, characterized in that: A guiding conical surface is arranged on the outer side of the upper end of the conical tube or / and the inner side of the lower end of the elastic claw plate.

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