Torsion switching guide structure for torsional spring of clutch system

By introducing a torsion spring torque switching guide structure into the clutch system, the elastic energy stored in the torsion spring is used to drive the reaction plate to rotate the clutch disc counterclockwise, which solves the transmission lag problem caused by the difference in friction and grip angle in the clutch system and improves the smoothness of operation.

CN224214604UActive Publication Date: 2026-05-08ZHEJIANG XISIDE PRECISION INTELLIGENT MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG XISIDE PRECISION INTELLIGENT MANUFACTURING CO LTD
Filing Date
2025-05-12
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Common clutch systems lack dynamic assist, which causes transmission lag when the clutch disc drives the clutch plate to move due to frictional resistance and differences in grip angle, affecting the smoothness of operation.

Method used

A torsion spring torque switching guide structure for a clutch system was designed. When the clutch disc reaches two-thirds of its travel, the preload and elastic energy of the torsion spring are used to drive the reaction bird plate to rotate the clutch disc counterclockwise, thereby achieving dynamic power assist transmission.

Benefits of technology

It achieves smooth control under changes in friction and grip angle, avoids transmission difficulties, and improves the smoothness of clutch operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fishing gears, in particular to a clutch system torsion spring torsion switching guide structure which comprises an outer shell. The clutch further comprises a mounting groove, a clutch disc, a first moving point block, a guide plate, a reaction bird piece, a connecting shaft, a second moving point block, a fixed point block and a torsion spring. The mounting groove is formed in the right side of the outer shell. When the stroke of the clutch disc reaches two thirds of the rotation angle, the reaction bird piece is in a critical state, the clutch disc drives the connecting shaft to move through the first movable point block, the connecting shaft drives the reaction bird piece to move, and at the moment, the reaction bird piece drives the torsion spring to move through the second movable point block. After the end, connected with the second movable point block, of the torsion spring moves by a certain distance, the reaction bird piece is pushed to move continuously through the characteristics of the torsion spring, the reaction bird piece drives the clutch disc to rotate anticlockwise, so that the critical point of the reaction bird piece loses efficacy, and the reaction bird piece drives the special-shaped block to move towards the reaction tooth until the special-shaped block slides into the reaction tooth. And a dynamic power assisting function is realized.
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Description

Technical Field

[0001] This utility model relates to the field of fishing gear technology, and in particular to a clutch system torsion spring torque switching guide structure. Background Technology

[0002] The fishing reel clutch mechanism is used in the following scenarios: when the user needs to adjust the reel to rotate with the rocker arm, the drive unit drives the transmission shaft to move axially, so that the reel and the transmission unit are engaged, thereby realizing the rotation transmission. The user can drive the reel to perform line reeling operations by rocking the rocker arm. When the user needs to adjust the reel to not rotate with the rocker arm, the drive unit drives the transmission shaft to move axially, so that the reel and the transmission unit are disengaged, thereby releasing the rotation transmission and preventing the rotation of the rocker arm from affecting the reel's line reeling or casting operations.

[0003] Common clutch systems only include the function of clutch, which can adjust the connection state between the reel and the transmission unit, but lack the function of dynamic assistance. This cannot guarantee the smoothness of clutch operation, and it is easy for the clutch disc to cause transmission difficulties due to the difference in friction and grip angle when it drives the sprocket, thus affecting the smoothness of operation.

[0004] Therefore, in order to address the problem that the lack of dynamic assistance in the clutch system leads to transmission lag due to frictional resistance and differences in grip angle when the clutch disc drives the clutch plate, thus affecting the smoothness of operation, it is urgent to design a new type of clutch system torsion spring torque switching guide structure. Utility Model Content

[0005] To overcome the common problem that clutch systems lack dynamic assistance, which causes transmission lag due to frictional resistance and differences in grip angle when the clutch disc drives the clutch plate, thus affecting the smoothness of operation.

[0006] The technical solution of this utility model is as follows: a clutch system torsion spring torque switching guide structure, including an outer shell; it also includes a mounting groove, a clutch disc, a first moving point block, a guide plate, a reaction bird plate, a connecting shaft, a second moving point block, a fixed point block, and a torsion spring. The right side of the outer shell has a mounting groove, the front side of the mounting groove is provided with a clutch disc, the front end of the right side of the clutch disc is provided with a first moving point block, the front side of the mounting groove is provided with a guide plate corresponding to the position of the clutch disc, the right side of the guide plate is provided with a reaction bird plate, the right side of the reaction bird plate is provided with a connecting shaft corresponding to the position of the first moving point block, the front end of the right side of the reaction bird plate is provided with a second moving point block corresponding to the position of the connecting shaft, the right side of the guide plate is provided with a fixed point block corresponding to the position of the second moving point block, and the fixed point block is internally connected to a torsion spring.

[0007] Preferably, when the clutch disc reaches two-thirds of its rotation angle, the reaction plate is in a critical state. The clutch disc drives the connecting shaft to move via the first moving point block, and the connecting shaft drives the reaction plate to move. At this time, the reaction plate drives the torsion spring to move via the second moving point block. After the end of the torsion spring connected to the second moving point block moves a certain distance, the characteristics of the torsion spring push the reaction plate to continue moving. The reaction plate then drives the clutch disc to rotate counterclockwise, thereby causing the reaction plate to fail at its critical point. The reaction plate drives the shaped block to move towards the reaction gear until the shaped block slides into the reaction gear, thus realizing the function of dynamic assistance. This solves the problem that common clutch systems only contain the function of clutch and can adjust the connection state of the pulley and transmission unit, but lack the function of dynamic assistance. They cannot guarantee the smoothness of clutch operation and are prone to transmission difficulties due to the difference in friction and grip angle when the clutch disc drives the reaction plate, affecting the smoothness of operation.

[0008] Preferably, the connecting shaft is rotatably connected to the first moving point block, and the end of the torsion spring away from the fixed point block is rotatably connected to the second moving point block.

[0009] Preferably, a guide frame is provided at the rear end of the right side of the guide plate corresponding to the position of the reaction bird piece, and an irregular block is provided at the rear end of the right side of the reaction bird piece.

[0010] Preferably, the clutch disc has two arc-shaped grooves on its right side, and an L-shaped metal rod is connected around the clutch disc.

[0011] Preferably, two snap-fit ​​plates are provided on the left and right sides of the outer casing corresponding to the positions of the L-shaped metal rod, and a clutch handle is movably connected between the two snap-fit ​​plates.

[0012] Preferably, a sliding groove is provided on the right side of the snap-fit ​​plate inside the outer casing, corresponding to the position of the L-shaped metal rod, and a fixing groove is provided on the right side of the clutch handle.

[0013] Preferably, the end of the L-shaped metal rod away from the clutch disc passes through the outer casing and the sliding groove and is inserted into the interior of the fixing groove. Three limit bolts are provided inside the mounting groove corresponding to the position of the clutch disc.

[0014] The beneficial effects of this utility model are:

[0015] 1. When the clutch disc rotates to two-thirds of its stroke angle threshold, the reaction plate enters a critical equilibrium state. At this time, the clutch disc drives the connecting shaft to move axially through the first moving point block, which in turn causes the reaction plate to generate an initial displacement. The reaction plate then applies a preload to the torsion spring through the second moving point block. When the displacement of the engagement end of the torsion spring and the second moving point block exceeds the elastic deformation threshold, the energy stored in the torsion spring is released to generate a reverse thrust, which pushes the reaction plate to break through the critical point and complete the non-equilibrium displacement. The reaction plate then drives the clutch disc to rotate counterclockwise at an accelerated speed, and simultaneously pulls the irregular block to slide along the reaction tooth meshing trajectory until the irregular block and the reaction tooth form a rigid engagement, completing the dynamic power assist transmission process based on the conversion of elastic potential energy, and realizing the function of dynamic power assist. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the clutch system torsion spring torque switching guide structure of this utility model.

[0017] Figure 2 The diagram shown is a schematic representation of the clutch handle structure of the clutch system torsion spring torque switching guide structure of this utility model.

[0018] Figure 3 The diagram shown is a schematic representation of the clutch disc structure of the clutch system torsion spring torque switching guide structure of this utility model.

[0019] Figure 4 The diagram shown is a schematic representation of the torque adjustment component of the clutch system torsion spring torque switching guide structure of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Outer shell; 2. Mounting groove; 3. Clutch disc; 4. First moving point block; 5. Guide plate; 6. Reaction plate; 7. Connecting shaft; 8. Second moving point block; 9. Fixed point block; 10. Torsion spring; 11. Guide frame; 12. Irregularly shaped block; 13. Arc groove; 14. L-shaped metal rod; 15. Snap-fit ​​plate; 16. Sliding groove; 17. Clutch handle; 18. Fixing groove; 19. Limit bolt. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-4This utility model provides an embodiment of a clutch system torsion spring torque switching guide structure, including an outer shell 1; it also includes a mounting groove 2, a clutch disc 3, a first moving point block 4, a guide plate 5, a reaction bird plate 6, a connecting shaft 7, a second moving point block 8, a fixed point block 9, and a torsion spring 10. The outer shell 1 has a mounting groove 2 on its right side. The front side of the mounting groove 2 houses the clutch disc 3. The front end of the right side of the clutch disc 3 has the first moving point block 4. The front side of the mounting groove 2, corresponding to the position of the clutch disc 3, has a guide plate 5. The right side of the guide plate 5 has the reaction bird plate 6. The right side of the reaction bird plate 6, corresponding to the position of the first moving point block 4, has the connecting shaft 7. The front end of the right side of the reaction bird plate 6, corresponding to the position of the connecting shaft 7, has the second moving point block 8. The right side of the guide plate 5, corresponding to the position of the second moving point block 8, has a fixed point block 9. The fixed point block 9 is internally connected to the torsion spring 10. When the clutch disc 3's stroke reaches two-thirds of the rotation angle, the reaction bird... When plate 6 is in a critical state, clutch disc 3 drives connecting shaft 7 to move via first moving point block 4. Connecting shaft 7 drives reaction plate 6 to move. At this time, reaction plate 6 drives torsion spring 10 to move via second moving point block 8. When the end of torsion spring 10 connected to second moving point block 8 moves a certain distance, the characteristics of torsion spring 10 push reaction plate 6 to continue moving. Reaction plate 6 then drives clutch disc 3 to rotate counterclockwise, thereby causing reaction plate 6 to fail at the critical point. Reaction plate 6 drives shaped block 12 to move towards the direction of reaction gear until shaped block 12 slides into reaction gear, realizing the function of dynamic assistance. This solves the problem that common clutch systems only contain the function of clutch and can adjust the connection state of pulley and transmission unit, but lack the function of dynamic assistance. They cannot guarantee the smoothness of clutch operation and are prone to transmission difficulties due to friction and grip angle when clutch disc 3 drives plate 6 to move, affecting the smoothness of operation.

[0023] Please see Figures 2-4 In this embodiment, two snap-fit ​​plates 15 are provided on the left and right sides of the inside of the outer shell 1, corresponding to the position of the L-shaped metal rod 14. A clutch handle 17 is movably connected in the middle of the two snap-fit ​​plates 15. A sliding groove 16 is provided on the right side of the snap-fit ​​plate 15 inside the outer shell 1, corresponding to the position of the L-shaped metal rod 14. A fixing groove 18 is provided on the right side of the clutch handle 17. The end of the L-shaped metal rod 14 away from the clutch disc 3 passes through the outer shell 1 and the sliding groove 16 and is inserted into the interior of the fixing groove 18. Three limit bolts 19 are provided inside the mounting groove 2, corresponding to the position of the clutch disc 3. When the clutch handle 17 is pushed down, the clutch handle 17 moves downward in the middle of the two snap-fit ​​plates 15. The clutch handle 17 drives the L-shaped metal rod 14 to slide downward along the sliding groove 16. The L-shaped metal rod 14 drives the clutch disc 3 to rotate counterclockwise.

[0024] Please see Figures 1-4In this embodiment, the connecting shaft 7 is rotatably connected to the first moving point block 4, and the end of the torsion spring 10 away from the fixed point block 9 is rotatably connected to the second moving point block 8. A guide frame 11 is provided at the rear end of the right side of the guide plate 5 corresponding to the position of the reaction bird plate 6. A shaped block 12 is provided at the rear end of the right side of the reaction bird plate 6. Two arc-shaped grooves 13 are provided on the right side of the clutch disc 3. An L-shaped metal rod 14 is connected around the clutch disc 3. When the stroke of the clutch disc 3 reaches two-thirds of the rotation angle, the reaction bird plate 6 is in a critical state. The clutch disc 3 drives the connecting shaft 7 to move via the first moving point block 4, and the connecting shaft 7 drives the reaction bird plate 6 to move. The reaction plate 6 drives the torsion spring 10 to move through the second moving point block 8. After the end of the torsion spring 10 connected to the second moving point block 8 moves a certain distance, the characteristics of the torsion spring 10 push the reaction plate 6 to continue moving. The reaction plate 6 then drives the clutch disc 3 to rotate counterclockwise, thereby causing the reaction plate 6 to fail at the critical point. The reaction plate 6 drives the shaped block 12 to move in the direction of the reaction gear until the shaped block 12 slides into the reaction gear, thus realizing the function of dynamic assistance and preventing the problem of transmission difficulties caused by the difference in friction and grip angle when the clutch disc 3 drives the plate to move, which affects the smoothness of operation.

[0025] When in operation, the clutch handle 17 is pushed downwards, and the clutch handle 17 moves downwards between the two locking plates 15. The clutch handle 17 drives the L-shaped metal rod 14 to slide downwards along the sliding groove 16. The L-shaped metal rod 14 drives the clutch disc 3 to rotate counterclockwise. When the travel of the clutch disc 3 reaches two-thirds of the rotation angle, the reaction plate 6 is in a critical state. The clutch disc 3 drives the connecting shaft 7 to move through the first moving point block 4. The connecting shaft 7 drives the reaction plate 6 to move. At this time, the reaction plate 6 drives the torsion spring 10 to move through the second moving point block 8. After the end of the torsion spring 10 connected to the second moving point block 8 moves a certain distance, the characteristics of the torsion spring 10 push the reaction plate 6 to continue moving. The reaction plate 6 then drives the clutch disc 3 to rotate counterclockwise, thereby causing the reaction plate 6 to fail at the critical point. The reaction plate 6 drives the shaped block 12 to move in the direction of the reaction tooth until the shaped block 12 slides into the reaction tooth, realizing the function of dynamic assistance.

[0026] Through the above steps, when the travel of the clutch disc 3 reaches two-thirds of the rotation angle, the reaction plate 6 is in a critical state. The clutch disc 3 drives the connecting shaft 7 to move via the first moving point block 4, and the connecting shaft 7 drives the reaction plate 6 to move. At this time, the reaction plate 6 drives the torsion spring 10 to move via the second moving point block 8. After the end of the torsion spring 10 connected to the second moving point block 8 moves a certain distance, the characteristics of the torsion spring 10 push the reaction plate 6 to continue moving. The reaction plate 6 then drives the clutch disc 3 to rotate counterclockwise. This causes the reaction plate 6 to fail at its critical point. The reaction plate 6 then drives the shaped block 12 to move towards the reaction gear until the shaped block 12 slides into the reaction gear, thus achieving the function of dynamic assistance. This solves the problem that common clutch systems only contain the function of clutch and can adjust the connection state of the pulley and the transmission unit, but lack the function of dynamic assistance. This makes it impossible to guarantee the smoothness of clutch operation. It is easy for the clutch disc 3 to cause transmission difficulties due to the difference in friction and grip angle when it drives the plate, thus affecting the smoothness of operation.

Claims

1. A clutch system torsion spring torque switching guide structure, comprising an outer shell (1); characterized in that: It also includes a mounting groove (2), a clutch disc (3), a first moving point block (4), a guide plate (5), a reaction bird plate (6), a connecting shaft (7), a second moving point block (8), a fixed point block (9), and a torsion spring (10). The mounting groove (2) is provided on the right side of the outer shell (1). The front side of the mounting groove (2) is provided with a clutch disc (3). The front end of the right side of the clutch disc (3) is provided with a first moving point block (4). The front side of the mounting groove (2) is provided with a guide plate (5) corresponding to the position of the clutch disc (3). The right side of the guide plate (5) is provided with a reaction bird plate (6). The right side of the reaction bird plate (6) is provided with a connecting shaft (7) corresponding to the position of the first moving point block (4). The right side of the reaction bird plate (6) is provided with a connecting shaft (7). A second moving point block (8) is provided at the front end corresponding to the position of the connecting shaft (7). A fixed point block (9) is provided on the right side of the guide plate (5) corresponding to the position of the second moving point block (8). A torsion spring (10) is connected inside the fixed point block (9). The connecting shaft (7) is rotatably connected to the first moving point block (4). The end of the torsion spring (10) away from the fixed point block (9) is rotatably connected to the second moving point block (8). A guide frame (11) is provided at the rear end of the right side of the guide plate (5) corresponding to the position of the reaction bird piece (6). A shaped block (12) is provided at the rear end of the right side of the reaction bird piece (6). Two arc-shaped grooves (13) are opened on the right side of the clutch disc (3). An L-shaped metal rod (14) is connected around the clutch disc (3).

2. The clutch system torsion spring torque switching guide structure according to claim 1, characterized in that: Two snap-fit ​​plates (15) are provided on the left and right sides inside the outer shell (1) corresponding to the L-shaped metal rod (14), and a clutch handle (17) is movably connected in the middle of the two snap-fit ​​plates (15).

3. The clutch system torsion spring torque switching guide structure according to claim 2, characterized in that: A sliding groove (16) is provided on the right side of the snap-fit ​​plate (15) inside the outer shell (1) corresponding to the position of the L-shaped metal rod (14), and a fixing groove (18) is provided on the right side of the clutch handle (17).

4. The clutch system torsion spring torque switching guide structure according to claim 3, characterized in that: The L-shaped metal rod (14) is inserted into the inside of the fixed groove (18) through the outer shell (1) and the sliding groove (16) at the end away from the clutch disc (3). Three limit bolts (19) are provided inside the mounting groove (2) corresponding to the position of the clutch disc (3).