A fishing reel having an adjustable seal
Patent Information
- Application Number
- CN202511755807.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2045-11-27
Smart Images
Figure CN121420949B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of fishing gear technology, specifically to a fishing reel, and more particularly to an adjustable sealing structure fishing reel that can automatically switch sealing modes according to the line release and take-up status. Background Technology
[0002] As the core equipment in fishing, the performance of the fishing reel directly affects the angler's operating experience and the lifespan of the equipment. In raft fishing scenarios, the reel needs to frequently switch between "restrained retrieval" (actively retrieving the line via the crank, with the reel under tension) and "free retrieval" (the bait causes the spool to rotate passively, with the reel in an unrestrained state), while also dealing with complex aquatic environments (freshwater / seawater), silt, salt spray, and other corrosive media.
[0003] There is a contradiction in the design of fixed seals: In existing technology, the sealing methods of fishing reels are mainly divided into two categories: One type is the all-time sealed structure (such as the waterproof reel structure disclosed in patent CN202322829641.5, which achieves sealing by setting a fixed sealing ring at the shaft hole and the splice of the housing). However, this type of structure has a fatal flaw: the seal and the main shaft are always in contact. When freely reeling in and out the line, the friction between the seal and the main shaft will significantly increase the rotational resistance of the spool, resulting in a slower sinking speed of the bait and a delay in signal transmission, which seriously affects the fishing feel. After long-term use, the wear of the seal will lead to seal failure, and the debris generated by the wear will enter the inside of the housing, aggravating the wear of gears and bearings. Another type is without an active sealing structure, which only achieves passive dust and water protection through the design of the shell gap. This type of structure cannot effectively prevent water and mud from entering, causing the internal transmission components to rust and jam. Especially in sea fishing scenarios, high salt content will accelerate the scrapping of equipment. There is an irreconcilable conflict between sealing and smooth operation: existing technologies have failed to resolve the core contradiction between "sealing reliability" and "smooth rotation". When reeling in and out, the inside of the fishing reel must remain sealed to prevent media intrusion; when reeling in and out freely, the spindle rotation resistance must be minimized to ensure a smooth operating feel, but existing structures cannot dynamically adjust the sealing state according to the working conditions. The existing sealing structure has insufficient adaptability: most of the existing seals are fixed-size rubber rings or waterproof covers, which cannot adapt to the slight movement of the spindle under different working conditions. They are prone to wear caused by sealing gaps or excessive compression, resulting in short seal life and high maintenance costs. Therefore, there is an urgent need in this field for an adjustable sealing structure that can automatically switch the sealing mode according to the working state of the fishing reel (constrained / free line reeling), so as to eliminate the rotational resistance during free line reeling while ensuring sealing reliability, and solve the core contradiction of the existing technology. Summary of the Invention
[0004] The purpose of this invention is to overcome the defects of existing fishing reel sealing structures and provide a fishing reel with an adjustable sealing structure, achieving the following technical objectives: 1. In constrained reeling and unloading conditions, a reliable seal is automatically formed to prevent water, mud, salt spray, and other media from entering the reel housing; 2. In free reeling and unloading conditions, the seal contact is automatically released, eliminating friction between the seal and the spindle and ensuring smooth spool rotation; 3. The sealing structure is linked to the clutch mechanism, requiring no additional operation and achieving adaptive switching of the sealing mode; 4. The sealing structure is compact, adaptable to the overall size of existing fishing reels, and has good wear resistance and service life.
[0005] The technical solution of this invention to solve its technical problem is: a fishing reel with an adjustable sealing structure, comprising: The reel housing contains a main shaft body and is divided into a spool side and a rocker side. The reel housing has a sealed chamber inside. The spool is located outside the reel housing. The spool is connected to the spool side of the reel housing via the main shaft body. The spool can rotate relative to the reel housing. The crank handle is located outside the reel housing and is rotatably connected to the reel side of the reel housing via a crank shaft assembly; The transmission gear mechanism includes a rocker gear and a main shaft gear. The rocker gear is connected to the rocker shaft assembly, and the main shaft gear is sleeved on the main shaft body. The rocker gear meshes with the main shaft gear. The clutch mechanism acts on the aforementioned transmission gear mechanism, and the clutch mechanism has at least a transmission engagement position and a transmission disengagement position; The reel housing has a first hole, and the main shaft body extends out of the reel housing after passing through at least part of the first hole. A movable gap is formed between the main shaft body and the inner wall of the first hole, and an adjustable sealing mechanism is provided at the movable gap. When the clutch mechanism is in the transmission engagement position, the crank and the winding spool form a transmission connection, the winding spool is in a constrained winding and unwinding state, and the adjustable sealing mechanism abuts against the inner wall of the main shaft body and the first hole respectively to form a sealing fit. When the clutch mechanism is in the disengaged position, the crank handle and the spool are disengaged, and the spool is in a free winding and unwinding state. At this time, the adjustable sealing mechanism is disengaged from the spindle body to eliminate the contact force between the adjustable sealing mechanism and the spindle body.
[0006] A further provision of the above technical solution is that the adjustable sealing mechanism includes a first sealing element, a movable sealing element, and an adaptive spring; The first seal is disposed in the first hole, and the outer wall of the first seal abuts against the inner wall of the first hole to form a sealing fit, and a sealing gap is formed between the inner wall of the first seal and the main shaft body. The movable locking element is sleeved on the spindle body and has a locked position and a released position. When the movable locking element is in the locked position, it fills the sealing gap, thereby abutting against the inner wall of the first seal and forming a sealing fit. When the movable locking element is in the released position, it disengages from the inner wall of the first seal to release the sealing gap and eliminate the contact force between the movable locking element and the spindle body. The adaptive spring acts on the movable locking member so that the movable locking member always has a tendency to switch to the release position.
[0007] A further provision of the above technical solution is that a support gasket is provided in the first hole, the lower end of the first seal is pressed against the upper end of the support gasket, and the upper end of the adaptive spring abuts against the lower end of the support gasket.
[0008] A further provision of the above technical solution is that at least a first bearing and a second bearing are sleeved on the main shaft body, and both the first bearing and the second bearing are located in a sealed chamber. The first bearing is located above the main shaft gear, the lower end of the adaptive spring abuts against the first bearing, and the first bearing is located between the first hole and the movable locking member; the movable locking member has a stepped portion, and the inner ring of the first bearing abuts against the stepped portion to form a transmission fit; The second bearing is located below the main shaft gear.
[0009] A further provision of the above technical solution is that: the main shaft body is provided with a limiting ring, which is located above the movable locking member; when the movable locking member is in the locking position, the upper end of the movable locking member can abut against the limiting ring and form a limiting engagement.
[0010] A further provision of the above technical solution is that the main shaft body has a first transmission pin and a second transmission pin; The first transmission pin is located in a sealed chamber, and the main shaft gear has a first transmission groove. When the clutch mechanism is in the transmission engagement position, the clutch mechanism causes the main shaft gear to rise relative to the main shaft body, thereby inserting the first transmission pin into the first transmission groove, so that the main shaft gear engages with the main shaft body and forms a transmission fit. When the clutch mechanism is in the transmission disengagement position, the clutch mechanism causes the main shaft gear to descend relative to the main shaft body, thereby disengaging the first transmission pin from the first transmission groove, so that the main shaft gear disengages from the main shaft body and releases the transmission fit. The second transmission pin is located outside the sealed cavity, and the winding spool is provided with a second transmission groove. The second transmission pin is always inserted into the second transmission groove so that the winding spool and the main shaft body form a transmission engagement.
[0011] A further provision of the above technical solution is that a first annular groove is provided in the first hole, and the first sealing member is embedded in the first annular groove; The first sealing element includes a thickened section and a thinned section. The thickened section is at least partially embedded in the first annular groove and forms an interference fit. The thinned section extends out of the first annular groove and can contact the movable sealing element. The upper end of the movable sealing member has a sealing section, the horizontal cross-sectional area of which gradually decreases from bottom to top; the vertical cross-sectional area of the thinning section gradually decreases from outside to inside.
[0012] A further configuration of the above technical solution is as follows: both the first bearing and the second bearing are located in a sealed chamber, and the second bearing is located below the first bearing; Alternatively, the first bearing is located in a sealed chamber, the second bearing is located outside the sealed chamber, and the second bearing is located above the first bearing.
[0013] A further provision of the above technical solution is that a spindle groove is provided on the outer wall of the spindle body, a spindle seal is disposed in the spindle groove, and the spindle seal is located between the outer wall of the spindle body and the inner wall of the movable sealing member.
[0014] The reel housing includes a base and a cover plate that are assembled together. The cover plate is provided with the first hole. The base has a second hole for the clutch mechanism to pass through, and a second sealing element is provided between the clutch mechanism and the inner wall of the second hole. The base has a third hole for the rocking shaft assembly to pass through, and a third sealing element is provided between the rocking shaft assembly and the inner wall of the third hole. A fourth sealing element is provided between the base and the cover plate to form a sealed chamber between the base and the cover plate.
[0015] The working principle of this invention is as follows: Transmission engagement position (constrained line release / reeling state): The angler operates the clutch mechanism, placing it in the transmission engagement position. The clutch mechanism pushes the spindle gear upwards along the spindle body until the first transmission pin on the spindle body inserts into the first transmission groove of the spindle gear, forming a transmission engagement between the spindle gear and the spindle body. During the upward movement of the spindle gear, the first bearing moves upwards synchronously. The inner ring of the first bearing, through the stepped portion, drives the movable locking member to overcome the elastic force of the adaptive spring and move upwards until the upper end of the movable locking member abuts against the limiting ring of the spindle body (achieving axial limiting). At this time, the movable locking member is in the locking position, and its locking section completely fills the sealing gap between the first seal and the spindle body. The conical surface of the locking section is tightly fitted with the thinned section conical surface of the first seal, forming a double seal (fixed seal between the first seal and the first hole, and dynamic seal between the movable locking member and the first seal). Simultaneously, the spindle seal fills the gap between the movable locking member and the spindle body, further enhancing the sealing effect. The angler turns the crank handle, which drives the crank handle gear to rotate through the crank shaft assembly. The crank handle gear drives the main shaft gear to rotate, and the main shaft gear drives the main shaft body to rotate through the first transmission pin, thereby driving the spool to control the winding and unwinding of the line. At this time, the sealed chamber is in a completely sealed state, and external moisture and mud cannot enter.
[0016] Disengaged position (free line reeling): The angler reverses the clutch mechanism, disengaging it from the main shaft. The clutch releases its thrust on the main shaft gear, which moves downwards along the main shaft under its own weight and transmission resistance. The first transmission pin disengages from the first transmission groove, disengaging the main shaft gear from the main shaft. After the main shaft gear moves downwards, the first bearing loses its upward thrust, the adaptive spring recovers its deformation, and pushes the movable locking member downwards until its locking section completely disengages from the thinned section of the first seal, releasing the sealing gap. At this point, the movable locking member is in the released position, with no contact between it and the main shaft, allowing the main shaft to rotate freely. The line spool rotates under the weight of the bait or the pull of the fish, enabling free line reeling. Because the seal has no contact with the main shaft, the rotational resistance is minimal, ensuring smooth operation.
[0017] The beneficial effects of this invention are as follows: I. Dynamic Balance Between Sealing and Smoothness: Through the linkage design of the clutch mechanism and the adjustable sealing mechanism, the adaptive switching of the sealing state of the fishing reel has been achieved for the first time. The seal is reliable when the line is restrained during retrieval and release, and the resistance is zero when the line is freely retrieval and release, completely solving the irreconcilable contradiction between sealing and smoothness in the existing technology. II. High sealing reliability: Under constrained conditions, a "triple seal" is formed (the first seal and the first hole, the movable sealing element and the first seal, and the main shaft seal and the movable sealing element), which can effectively prevent the intrusion of media such as fresh water, seawater, mud, and salt spray; after salt spray testing, in a continuous 72-hour salt spray environment, there is no rust or impurities entering the sealed chamber, and the service life of the equipment is extended by 2-3 times. 3. High ease of operation: The sealing mode switching and clutch operation are completed simultaneously, without the need for additional operation steps, which conforms to the angler's operating habits; the structure is highly integrated, and the adjustable sealing mechanism only occupies the existing space of the reel housing, without increasing the overall volume and weight of the fishing reel. IV. Low wear and low maintenance cost: The seal does not contact the spindle during free winding and unwinding, avoiding wear caused by long-term friction; the seal is made of wear-resistant and corrosion-resistant fluororubber and stainless steel, with a service life more than 3 times longer than existing rubber seals, and is easy to replace. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the present invention.
[0019] Figure 2 This is an exploded view of the present invention.
[0020] Figure 3 This is a partial structural schematic diagram of the present invention.
[0021] Figure 4 This is a schematic diagram of the local structural fit under constrained wire feeding and unloading conditions.
[0022] Figure 5 This is a schematic diagram of another local structural arrangement under constrained wire feeding and unloading conditions.
[0023] Figure 6 This is a schematic diagram of the local structural fit under the free winding and unwinding state.
[0024] Figure 7 This is a schematic diagram of another local structural arrangement under the free winding and unwinding state.
[0025] Figure 8 This is a schematic diagram of the main shaft gear.
[0026] Figure 9 This is a structural schematic diagram of the main spindle body.
[0027] Figure 10 This is a schematic diagram of the structure of the first sealing element.
[0028] Figure 11 This is a schematic diagram of the structure of the movable locking component.
[0029] Figure 12 This is a schematic diagram of the structure of a spool for winding thread.
[0030] Figure 13 This is a cross-sectional view and a partially enlarged schematic diagram of the present invention under constrained wire feeding and unfeeding conditions.
[0031] Figure 14 This is a cross-sectional view and a partially enlarged schematic diagram of the present invention in a free winding and unwinding state.
[0032] In the diagram: 1. Reel housing; 1a. Sealed chamber; 11. Spool side; 12. Rocker wheel side; 13. Base; 131. Second hole; 132. Third hole; 14. Cover plate; 15. First hole; 15a. Movement clearance; 151. First annular groove; 2. Main shaft body; 21. First bearing; 22. Second bearing; 23. First transmission pin; 24. Second transmission pin; 25. Limiting ring; 26. Main shaft groove; 3. Reel; 3a. Constrained winding and unwinding state; 3b. Free winding and unwinding state; 31. Second transmission groove; 4. Handle; 41. Rocker shaft assembly; 5. Transmission gear Wheel mechanism; 51, crank gear; 52, main shaft gear; 521, first transmission groove; 6, clutch mechanism; 6a, transmission engagement position; 6b, transmission disengagement position; 72, second seal; 73, third seal; 74, fourth seal; 75, main shaft seal; 8, adjustable sealing mechanism; 81, first seal; 811, thickened section; 812, thinned section; 81a, sealing gap; 82, movable locking element; 821, step; 822, locking section; 82a, locking position; 82b, releasing position; 83, adaptive spring; 84, support gasket. Detailed Implementation
[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0034] Example 1
[0035] Reference Figures 1 to 14 A fishing reel with an adjustable sealing structure includes: The reel housing 1 serves as an integral support structure and contains a main shaft body 2. The reel housing 1 is divided into a spool side 11 and a rocker side 12. The reel housing 1 has a sealed chamber 1a inside. The main shaft body 2 is one of the core components in the transmission structure between the rocker handle 4 and the reel 3.
[0036] The line spool 3 is located outside the reel housing 1. Fishing line is wound around the line spool 3, which is a core component used to realize the function of reeling in and unreeling the line. The line spool 3 is connected to the spool side 11 of the reel housing 1 through the main shaft body 2. The line spool 3 can rotate relative to the reel housing 1.
[0037] The crank 4 is located outside the reel housing 1. The crank 4 is rotatably connected to the rocker side 12 of the reel housing 1 via the rocker shaft assembly 41. Generally, when the reel 3 is in the constrained winding and unwinding state 3a, the user can control the rotation speed of the reel 3 by cranking the crank 4.
[0038] The transmission gear mechanism 5 includes a rocker gear 51 and a main shaft gear 52. The rocker gear 51 is connected to the rocker shaft assembly 41, and the main shaft gear 52 is sleeved on the main shaft body 2. The rocker gear 51 and the main shaft gear 52 mesh to form a transmission engagement.
[0039] The clutch mechanism 6 acts on the transmission gear mechanism 5. The clutch mechanism 6 has at least a transmission engagement position 6a and a transmission disengagement position 6b. There are many structural designs for the clutch mechanism 6, and the specific structure is not the focus of protection of this invention. Any existing technology can be used. Commonly, the clutch mechanism 6 includes a wire release switch that extends outside the reel housing 1. The user switches the clutch mechanism 6 between the transmission engagement position 6a and the transmission disengagement position 6b by operating the wire release switch.
[0040] It is important to emphasize that the core innovative feature of this invention lies in the adjustable sealing mechanism 8, which provides reliable sealing during controlled winding and unwinding, and exhibits zero resistance during free winding and unwinding, completely resolving the inherent contradiction between sealing and smoothness in existing technologies. Specifically, the reel housing 1 has a first hole 15, and the main shaft body 2 extends beyond the reel housing 1 after passing through at least part of the first hole 15. A movable gap 15a is formed between the main shaft body 2 and the inner wall of the first hole 15, and the adjustable sealing mechanism 8 is disposed at the movable gap 15a. The working mechanism and structural change states of the adjustable sealing mechanism 8 are as follows: When restricting the wire feeding and unloading (sealing is required): Refer to... Figure 4 , Figure 5 , Figure 13 When the clutch mechanism 6 is in the transmission engagement position 6a, the crank 4 and the winding spool 3 form a transmission connection, and the winding spool 3 is in a constrained winding and unwinding state 3a. The adjustable sealing mechanism 8 abuts against the inner walls of the main shaft body 2 and the first hole 15, forming a sealing fit. At this time, the inside of the reel housing 1 (i.e., the sealed chamber 1a) is completely sealed, preventing external moisture and mud from entering. When freely reeling in and out (smooth movement is required): Refer to... Figure 6 , Figure 7 , Figure 14 When the clutch mechanism 6 is in the disengaged position 6b, the crank 4 and the spool 3 are disengaged, and the spool 3 is in a free winding / unwinding state 3b. The adjustable sealing mechanism 8 is also disengaged from the spindle body 2 to eliminate the contact force between them. Since there is no contact force between the adjustable sealing mechanism 8 and the spindle body 2, the rotational resistance of the spindle body 2 is extremely low, ensuring rapid winding / unwinding of the spool 3 in the free winding / unwinding state 3b.
[0041] Preferably, refer to Figure 9 , Figures 12-14 This invention employs a moving spindle structure (existing fishing reels all use a stationary spindle structure) to satisfy the synergistic effect between the adjustable sealing mechanism 8, the clutch mechanism 6, and the spindle body 2. Specifically, the spindle body 2 has a first transmission pin 23 and a second transmission pin 24; the first transmission pin 23 is located in the sealed chamber 1a, and the spindle gear 52 has a first transmission groove 521; when the clutch mechanism 6 is in the transmission engagement position 6a, the clutch mechanism 6 causes the spindle gear 52 to rise relative to the spindle body 2, thereby inserting the first transmission pin 23 into the first transmission groove 521, so that the spindle gear 52 can move upward relative to the spindle body 2. The shaft gear 52 engages with the main shaft body 2 to form a transmission engagement; when the clutch mechanism 6 is in the transmission disengagement position 6b, the clutch mechanism 6 causes the main shaft gear 52 to descend relative to the main shaft body 2, thereby causing the first transmission pin 23 to disengage from the first transmission groove 521, so that the main shaft gear 52 is disengaged from the main shaft body 2 and the transmission engagement is released; the second transmission pin 24 is located outside the sealed chamber 1a, and the winding spool 3 is provided with a second transmission groove 31. The second transmission pin 24 is always inserted into the second transmission groove 31 so that the winding spool 3 and the main shaft body 2 form a transmission engagement, ensuring stable power transmission. Example 2
[0042] Based on Embodiment 1, this embodiment provides a preferred structural embodiment of the adjustable sealing mechanism 8, as detailed below: (Refer to...) Figure 2 , Figures 4-7 The adjustable sealing mechanism 8 includes a first sealing element 81, a movable sealing element 82, and an adaptive spring 83, which realizes automatic switching between the sealing state and the release state.
[0043] In detail, the first seal 81 is disposed in the first hole 15, and the outer wall of the first seal 81 abuts against the inner wall of the first hole 15 to form a sealing fit. A sealing gap 81a is formed between the inner wall of the first seal 81 and the spindle body 2. The first seal 81 provides support for the subsequent switchable seal.
[0044] The movable sealing element 82 is sleeved on the spindle body 2, and the movable sealing element 82 has a locked position state 82a and a released position state 82b. The movable sealing element 82 acts as a "switchable sealing switch" and controls whether the seal is effective through state changes.
[0045] When the movable sealing member 82 is in the sealed position 82a, the movable sealing member 82 fills the sealing gap 81a, thereby the movable sealing member 82 abuts against the inner wall of the first sealing member 81 and forms a sealing fit. When the movable sealing member 82 is in the released position 82b, the movable sealing member 82 disengages from the inner wall of the first seal member 81 to release the sealing gap 81a and eliminate the contact force between the movable sealing member 82 and the spindle body 2.
[0046] The adaptive spring 83 acts on the movable sealing member 82 so that the movable sealing member 82 always has a tendency to switch to the release position state 82b. The adaptive spring 83 serves two purposes: first, to provide a reset force for the seal release, ensuring a stable state without resistance during free winding and unwinding; and second, to ensure that the movable sealing member 82 always maintains the release position state 82b when there is no external force interference.
[0047] The working mechanism of this embodiment is as follows: Constrained take-up and undo state 3a (clutch engagement): Refer to Figure 4 , Figure 5 As shown in Figure 3, when the clutch mechanism 6 switches to the transmission engagement position 6a, it pushes the movable blocking member 82 through the transmission linkage structure (without special limitation); the movable blocking member 82 overcomes the elastic force of the adaptive spring 83 and moves axially to the blocking position, filling the sealing gap 81a; at this time, a double seal is formed: the outer wall of the first sealing member 81 seals with the inner wall of the first hole 15, and the outer wall of the movable blocking member 82 seals with the inner wall of the first sealing member 81, so that the inner cavity of the reel housing 1 is completely sealed.
[0048] Free take-up and take-off state 3b (clutch disengagement): Refer to Figure 6 , Figure 7 , Figure 14 When the clutch mechanism 6 switches to the transmission separation position 6b, the linkage thrust disappears; the elastic force of the adaptive spring 83 dominates, pushing the movable sealing member 82 to axially reset to the release position; the movable sealing member 82 disengages from the first seal 81, the sealing gap 81a is released, and the movable sealing member 82 has no contact with the main shaft, so the rotational resistance of the main shaft approaches zero.
[0049] In summary, the advantages of this implementation are as follows: 1. Precise balance between sealing and resistance: Abandoning the traditional "single fixed seal" design, the combination of "basic seal + movable lock" allows the seal to take effect only when needed, and there is no contact friction in the released state, achieving "zero resistance" structurally and completely resolving the contradictions of traditional technology; 2. The key role of the adaptive spring 83: The spring's return tendency ensures that the free winding and unwinding state 3b is the default resistance-free state, which conforms to user habits and requires no additional operation. The sealing state can be linked simply by switching the clutch mechanism 6, simplifying the user's operation logic.
[0050] Preferred, refer to Figures 4-7 A support gasket 84 is also provided in the first hole 15. The lower end of the first seal 81 presses against the upper end of the support gasket 84, and the upper end of the adaptive spring 83 abuts against the lower end of the support gasket 84. The support gasket 84 is installed inside the first hole 15, located in the middle position below the first seal 81 and above the adaptive spring 83. At the same time, the support gasket 84 is limited by the inner wall of the first hole 15 to achieve its own fixed installation. The purpose of the support gasket 84 is to provide a stable positioning reference for the first seal 81: the first seal 81 is mostly made of flexible sealing material (such as rubber or silicone), and direct installation in the hole is prone to deformation due to force, which can cause positional displacement; the support gasket 84, through rigid support, restricts the axial displacement of the first seal 81, ensuring that its outer wall is always tightly fitted with the inner wall of the first hole 15, and avoiding failure of the sealing gap 81a due to assembly deviation. Secondly, it optimizes the force transmission efficiency of the adaptive spring 83: the spring force needs to be transmitted evenly. If it directly abuts against the flexible first seal 81, it is easy to cause uneven force on the spring and local compression deformation. The support gasket 84, as a rigid intermediate carrier, evenly distributes the axial elastic force of the spring to the bottom of the first seal 81, ensuring that the spring's thrust / reset force is stable and controllable when the movable sealing part 82 switches. Thirdly, it protects core components and reduces wear: it avoids direct contact between the adaptive spring 83 and the first seal 81: if the spring directly rubs against the seal when it is repeatedly compressed and reset, it will accelerate the aging and damage of the seal. The support gasket 84 isolates the two from contact, and its rigid material has stronger wear resistance, which can significantly reduce the wear of parts during long-term use and extend the overall life of the mechanism.
[0051] It is particularly important to emphasize that in existing technologies (such as patent document CN223157773U), bearings are provided at both ends of the spindle to provide good rotational support. One of these bearings is located outside the spool housing 1, i.e., at the far end of the spool. This location cannot be properly sealed, meaning moisture will corrode this outer bearing.
[0052] To address the shortcomings of existing technologies, this embodiment refers to... Figure 2 , Figures 13-14The main shaft body 2 is equipped with at least a first bearing 21 and a second bearing 22. The specific installation positions of the first bearing 21 and the second bearing 22 vary depending on the type of fishing reel used, for example: When applied to a raft fishing reel, the first bearing 21 and the second bearing 22 are both located in a sealed chamber 1a, and the second bearing 22 is located below the first bearing 21, to prevent the first bearing 21, the second bearing 22 and the transmission gear mechanism 5 from coming into contact with external impurities and moisture.
[0053] When applied to a lure reel, the first bearing 21 is located in a sealed chamber 1a, and the second bearing 22 is located outside the sealed chamber 1a, with the second bearing 22 positioned above the first bearing 21, to prevent the first bearing 21 and the transmission gear mechanism 5 from coming into contact with external impurities and moisture.
[0054] It should be emphasized that the first bearing 21 also serves as the axial fulcrum of the movable blocking member 82. The thrust of the adaptive spring 83 is evenly transmitted to the movable blocking member 82 through the first bearing 21. At the same time, the first bearing 21 provides stable support for the adaptive spring 83. The lower end of the spring directly abuts against the outer ring of the bearing, ensuring a stable transmission path for the elastic force. Furthermore, the transmission cooperation between the stepped portion 821 of the movable blocking member 82 and the inner ring of the bearing ensures that the movable blocking member 82 rotates synchronously with the main shaft, avoiding relative friction. When the clutch mechanism 6 is switched, the movable blocking member 82 moves axially but does not affect the rotation of the main shaft.
[0055] On the other hand, refer to Figure 9 , Figure 13 The spindle body 2 is provided with a limiting ring 25, which is located above the movable sealing member 82. When the movable sealing member 82 is in the locked position 82a, the upper end of the movable sealing member 82 can abut against the limiting ring 25 and form a limiting engagement. The limiting ring 25 is a mechanical limiting structure integrally protruding on the spindle body 2, providing a clear travel boundary for the movable sealing member 82. This ensures the stability and consistency of the sealing state, protects the core components from excessive stress, and makes the relevant components more reliable and durable.
[0056] The preferred embodiment for the shape of the first seal 81 is as follows: (Refer to...) Figures 13-14 The first hole 15 has a first annular groove 151, and the first sealing member 81 is embedded in the first annular groove 151. The first annular groove 151 provides a dedicated installation space for the first sealing member 81, preventing circumferential displacement or axial movement of the sealing member during axial reciprocating motion, and limiting the radial position of the first sealing member 81, ensuring that the sealing fit between its outer wall and the hole wall is always stable, and providing a fixed reference for subsequent contact with the movable sealing member 82.
[0057] Reference Figure 10 , Figures 13-14 The first sealing element 81 includes a thickened section 811 and a thinned section 812. The thickened section 811 is at least partially embedded in the first annular groove 151 and forms an interference fit. The interference fit allows the thickened section 811 to fit tightly against the inner wall of the groove, forming a fixed sealing effect, preventing external moisture and mud from entering through the gap between the sealing element and the groove, building a basic sealing barrier. Moreover, the thickened design improves the structural strength of the sealing element, avoiding deformation or detachment due to compression and friction during long-term use.
[0058] The thinned section 812 extends beyond the first annular groove 151 and can contact the movable sealing member 82. The thinned section 812 is thinner and extends beyond the first annular groove 151, serving as a flexible sealing end that contacts the movable sealing member 82. When in contact, the thinned section 812 can deform slightly to conform to the surface contour of the movable sealing member 82, fill tiny gaps, and improve the sealing fit.
[0059] Conical surface fit design: Reference Figure 11 The upper end of the movable sealing member 82 forms a sealing section 822, the lateral cross-sectional area of which gradually decreases from bottom to top; the vertical cross-sectional area of the thinning section 812 gradually decreases from outside to inside. The sealing section 822 has a conical structure that is narrow at the top and wide at the bottom, which complements the thinning section 812 of the first sealing member 81, which has a large vertical cross-sectional area at the outside and small at the inside. When the two come into contact, they form a conical fit. During sealing, the conical surface guides the movable sealing member 82 to quickly find the fitting position, reducing alignment time; during separation, the tilt angle of the conical surface gradually reduces the friction when the two separate, avoiding adhesion or jamming.
[0060] The advantages are as follows: First, precise guidance: When the movable sealing part 82 moves upward, the conical structure plays a self-positioning role, guiding it to accurately embed into the inner side of the thinned section 812, avoiding misalignment that could lead to sealing failure; Second, reduced contact resistance: Compared with planar contact, the initial contact area of the conical contact is smaller, resulting in lower frictional resistance during switching, and smoother operation of the clutch mechanism 6 without any jamming; Third, concentrated sealing pressure: When the conical surfaces are in contact, the pressure is concentrated at the contact tip, allowing the elastic deformation of the thinned section 812 to be concentrated on the sealing surface, improving sealing reliability and forming a highly efficient sealing effect of "line sealing" or "narrow surface sealing". Example 3
[0061] In this invention, reference is made to Figure 14The spindle body 2 has a spindle groove 26 on its outer wall, and a spindle seal 75 is disposed in the spindle groove 26, with the spindle seal 75 located between the outer wall of the spindle body 2 and the inner wall of the movable sealing member 82. The reel housing 1 includes a base 13 and a cover plate 14 assembled together; the cover plate 14 has a first hole 15; the base 13 has a second hole 131 for the clutch mechanism 6 to pass through, and a second seal 72 is disposed between the clutch mechanism 6 and the inner wall of the second hole 131; the base 13 has a third hole 132 for the rocking shaft assembly 41 to pass through, and a third seal 73 is disposed between the rocking shaft assembly 41 and the inner wall of the third hole 132; a fourth seal 74 is disposed between the base 13 and the cover plate 14, so that a sealed chamber 1a is formed between the base 13 and the cover plate 14. The main shaft seal 75, the first seal 81, the second seal 72, the third seal 73 and the fourth seal 74 form an all-round seal, so that the internal transmission mechanism, bearings and other components are in the sealed chamber 1a, effectively isolating moisture, mud, dust and other impurities, and preventing the components from rusting and jamming.
[0062] Reference Figures 1 to 14 The following is a detailed explanation of the all-around sealing structure solution: 1. Sealing structure of the reel housing 1: A fourth sealing element 74 is provided between the base 13 and the cover plate 14. The fourth sealing element 74 is preferably an annular sealing ring, which is embedded in the splicing surface of the base 13 or the cover plate 14, so that the base 13 and the cover plate 14 are spliced to form a sealed chamber 1a, thereby achieving overall sealing of the housing.
[0063] II. Sealing structure of spindle body 2: A first annular groove 151 is provided in the first hole 15, and the first sealing element 81 is embedded in the first annular groove 151 to achieve dynamic sealing between spindle body 2 and the first hole 15, which does not affect the rotation of spindle body 2 and can prevent moisture from entering.
[0064] III. Sealing structure of clutch mechanism 6: The second sealing element 72 abuts against the inner wall of the second hole 131 and forms a sealing fit, thereby achieving axial limiting of the second sealing element 72, preventing the sealing element from shifting during the reciprocating motion of the clutch mechanism 6, and ensuring sealing stability.
[0065] IV. Sealing structure of rocking shaft assembly 41: The third seal 73 abuts against the rocking shaft assembly 41 and forms a sealing fit to form a basic seal.
[0066] V. Sealing structure of movable sealing element 82: The main shaft seal 75 is located between the outer wall of the main shaft body 2 and the inner wall of the movable sealing element 82. When the movable sealing element 82 is in the closed position, the main shaft seal 75 is squeezed and deformed by the inner wall of the movable sealing element 82, filling the tiny gap between the main shaft and the movable sealing element 82, forming a double seal of "adjustable sealing mechanism 8 + main shaft seal 75", which further improves the waterproof and sandproof level.
[0067] In summary, this embodiment forms a comprehensive protection network, from the core spindle seal to the clutch mechanism, the dynamic seal of the rocker shaft, and the overall seal of the housing splice surface. It retains the core innovation of "reliable sealing during constrained line reeling and casting, and zero resistance during free line reeling and casting," while also elevating the product's environmental adaptability and service life to new heights through redundant sealing and targeted protection, perfectly solving the industry pain points of insufficient sealing or excessive resistance in traditional fishing reels.
[0068] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the invention shall still fall within the protection scope of the present invention.
Claims
1. A fishing reel with an adjustable sealing structure, comprising: The reel housing (1) has a main shaft body (2) inside. The reel housing (1) is divided into a spool side (11) and a rocker side (12). The reel housing (1) has a sealed chamber (1a). The spool (3) is located outside the reel housing (1). The spool (3) is connected to the spool side (11) of the reel housing (1) via the main shaft body (2). The spool (3) can rotate relative to the reel housing (1), and the spool (3) has at least a constrained winding and unwinding state (3a) and a free winding and unwinding state (3b). A rocker handle (4) is located outside the reel housing (1). The rocker handle (4) is rotatably connected to the rocker side (12) of the reel housing (1) via a rocker shaft assembly (41). The transmission gear mechanism (5) includes a rocker gear (51) and a main shaft gear (52). The rocker gear (51) is connected to the rocker shaft assembly (41). The main shaft gear (52) is sleeved on the main shaft body (2). The rocker gear (51) meshes with the main shaft gear (52). The clutch mechanism (6) acts on the transmission gear mechanism (5), and the clutch mechanism (6) has at least a transmission engagement position (6a) and a transmission disengagement position (6b); Its features are: The reel housing (1) is provided with a first hole (15), the main shaft body (2) extends out of the reel housing (1) after passing through at least part of the first hole (15), and a movable gap (15a) is formed between the main shaft body (2) and the inner wall of the first hole (15), and an adjustable sealing mechanism (8) is provided at the movable gap (15a); When the clutch mechanism (6) is in the transmission engagement position (6a), the rocker (4) and the winding spool (3) form a transmission connection, the winding spool (3) is in the restrained winding and unwinding state (3a), and the adjustable sealing mechanism (8) abuts against the inner wall of the main shaft body (2) and the first hole (15) respectively and forms a sealing fit. When the clutch mechanism (6) is in the transmission disengagement position (6b), the crank (4) and the winding spool (3) form a transmission disengagement engagement. At this time, the winding spool (3) is in a free winding and unwinding state (3b), and the adjustable sealing mechanism (8) is disengaged from the main shaft body (2) to eliminate the contact force between the adjustable sealing mechanism (8) and the main shaft body (2).
2. The fishing reel with an adjustable sealing structure according to claim 1, characterized in that: The adjustable sealing mechanism (8) includes a first sealing element (81), a movable sealing element (82), and an adaptive spring (83); The first seal (81) is disposed in the first hole (15), and the outer side wall of the first seal (81) abuts against the inner wall of the first hole (15) to form a sealing fit, and a sealing gap (81a) is formed between the inner side wall of the first seal (81) and the spindle body (2). The movable locking member (82) is sleeved on the spindle body (2), and the movable locking member (82) has a locked position state (82a) and a released position state (82b). When the movable locking member (82) is in the locked position state (82a), the movable locking member (82) fills the sealing gap (81a), so that the movable locking member (82) abuts against the inner wall of the first seal (81) and forms a sealing fit. When the movable locking member (82) is in the released position state (82b), the movable locking member (82) disengages from the inner wall of the first seal (81) to release the sealing gap (81a) and eliminate the contact force between the movable locking member (82) and the spindle body (2). The adaptive spring (83) acts on the movable locking member (82) so that the movable locking member (82) always has a tendency to switch to the release position state (82b).
3. The fishing reel with an adjustable sealing structure according to claim 2, characterized in that: The first hole (15) is also provided with a support pad (84), the lower end of the first seal (81) presses against the upper end of the support pad (84), and the upper end of the adaptive spring (83) abuts against the lower end of the support pad (84).
4. The fishing reel with an adjustable sealing structure according to claim 3, characterized in that: The main shaft body (2) is equipped with at least a first bearing (21) and a second bearing (22); The first bearing (21) is located above the main shaft gear (52), the lower end of the adaptive spring (83) abuts against the first bearing (21), and the first bearing (21) is located between the first hole (15) and the movable locking member (82); the movable locking member (82) has a stepped portion (821), and the inner ring of the first bearing (21) abuts against the stepped portion (821) to form a transmission fit.
5. The fishing reel with an adjustable sealing structure according to claim 3, characterized in that: The main shaft body (2) is provided with a limiting ring (25), which is located above the movable locking member (82). When the movable locking member (82) is in the locked position (82a), the upper end of the movable locking member (82) can abut against the limiting ring (25) and form a limiting fit.
6. The fishing reel with an adjustable sealing structure according to claim 1, characterized in that: The main shaft body (2) has a first transmission pin (23) and a second transmission pin (24); The first transmission pin (23) is located in the sealed chamber (1a), and the main shaft gear (52) has a first transmission groove (521). When the clutch mechanism (6) is in the transmission engagement position (6a), the clutch mechanism (6) causes the main shaft gear (52) to rise relative to the main shaft body (2), so that the first transmission pin (23) is inserted into the first transmission groove (521), so that the main shaft gear (52) and the main shaft body (2) are engaged and form a transmission fit. When the clutch mechanism (6) is in the transmission disengagement position (6b), the clutch mechanism (6) causes the main shaft gear (52) to fall relative to the main shaft body (2), so that the first transmission pin (23) is disengaged from the first transmission groove (521), so that the main shaft gear (52) is disengaged from the main shaft body (2) and the transmission fit is released. The second transmission pin (24) is located outside the sealed chamber (1a), and the winding spool (3) is provided with a second transmission groove (31). The second transmission pin (24) is always inserted into the second transmission groove (31) so that the winding spool (3) and the main shaft body (2) form a transmission engagement.
7. The fishing reel with an adjustable sealing structure according to claim 2, characterized in that: The first hole (15) is provided with a first annular groove (151), and the first sealing member (81) is embedded in the first annular groove (151); The first sealing element (81) includes a thickened section (811) and a thinned section (812). The thickened section (811) is at least partially embedded in the first annular groove (151) and forms an interference fit. The thinned section (812) extends out of the first annular groove (151) and can contact the movable sealing element (82). The upper end of the movable sealing member (82) is formed with a sealing section (822), the horizontal cross-sectional area of the sealing section (822) gradually decreases from bottom to top; the vertical cross-sectional area of the thinning section (812) gradually decreases from outside to inside.
8. The fishing reel with an adjustable sealing structure according to claim 4, characterized in that: The first bearing (21) and the second bearing (22) are both located in the sealed chamber (1a), and the second bearing (22) is located below the first bearing (21); Alternatively, the first bearing (21) is located in the sealed chamber (1a), the second bearing (22) is located outside the sealed chamber (1a), and the second bearing (22) is located above the first bearing (21).
9. The fishing reel with an adjustable sealing structure according to claim 2, characterized in that: The spindle body (2) has a spindle groove (26) on its outer wall. A spindle seal (75) is disposed in the spindle groove (26) and the spindle seal (75) is located between the outer wall of the spindle body (2) and the inner wall of the movable sealing member (82).
10. The fishing reel with an adjustable sealing structure according to any one of claims 1-9, characterized in that: The reel housing (1) includes a base (13) and a cover plate (14) that are assembled together. The cover plate (14) is provided with the first hole (15); The base (13) is provided with a second hole (131) for the clutch mechanism (6) to pass through, and a second sealing element (72) is provided between the clutch mechanism (6) and the inner wall of the second hole (131); The base (13) is provided with a third hole (132) for the rocking shaft assembly (41) to pass through, and a third sealing element (73) is provided between the rocking shaft assembly (41) and the inner wall of the third hole (132); A fourth sealing element (74) is provided between the base (13) and the cover plate (14) so that a sealed chamber (1a) is formed between the base (13) and the cover plate (14).