100; and the first driven friction member 220 and the second driven friction member 230 are both sleeved on the mounting shaft 210, the first driven friction member 220 is fixedly connected to the mounting shaft 210, and the second driven friction member 230 is connected to the mounting shaft 210 in a synchronously rotatable and slidable manner. The line spooler 100 and the mounting shaft 210 are arranged coaxially, and the line spooler 100 is sleeved on the mounting shaft 210.

The first driven friction member 220 and the mounting shaft 210 may be fixedly connected through interference fit or other means. A portion where the mounting shaft 210 is connected to the second driven friction member 230 is a connection segment, the second driven friction member 230 is provided with a non-circular connecting hole, and a cross-sectional shape of the connection segment corresponds to that of the connecting hole, where the connection segment and the connecting hole may be in clearance fit with each other.

The first fixed friction member 111, the second fixed friction member 121, the first driven friction member 220, and the second driven friction member 230 may all employ friction discs or friction plates.

The first driven friction member 220 is configured to move synchronously with the mounting shaft 210 so as to come into contact with or disengage from the first fixed friction member 111. The second driven friction member 230 is configured to come into contact with or disengage from the second fixed friction member 121 when the line spooler 100 moves relative to a housing 10 of the fishing reel under the action of the linkage device 200.

When the linkage device 200 is coupled to the line spooler 100: the first driven friction member 220 comes into contact with the first fixed friction member 111; or the first driven friction member 220 comes into contact with the first fixed friction member 111, and the second driven friction member 230 comes into contact with the second fixed friction member 121.

When the linkage device 200 is decoupled from the line spooler 100: the first driven friction member 220 disengages from the first fixed friction member 111, and the second driven friction member 230 disengages from the second fixed friction member 121. That is, the first driven friction member 220 does not come into contact with the first fixed friction member 111, and the second driven friction member 230 does not come into contact with the second fixed friction member 121. In the decoupled state, the line spooler 100 and the linkage device 200 may rotate independently relative to each other (i.e., when the line spooler 100 rotates, the line spooler 100 does not drive the linkage device 200 to rotate; and when the linkage device 200 rotates, the linkage device 200 does not drive the line spooler 100 to rotate).

When the linkage device 200 is coupled to the line spooler 100, rotating the rocker arm and/or actuating the motor enables to drive the mounting shaft 210 to rotate through the first gear transmission mechanism 331 and/or the second gear transmission mechanism 332. When the mounting shaft 210 rotates, the first driven friction member 220 and the second driven friction member 230 rotate accordingly; and in this case, a friction is generated between the first driven friction member 220 and the first fixed friction member 111; or a friction is generated between the first driven friction member 220 and the first fixed friction member 111, and a friction is generated between the second driven friction member 230 and the second fixed friction member 121. Since both the first fixed friction member 111 and the second fixed friction member 121 are fixedly connected to the line spooler 100, the line spooler 100 rotates under the action of a friction, thereby achieving the winding or unwinding of the fishing line. Additionally, during the rotation of the mounting shaft 210, the third gear transmission mechanism 333 drives the leading shaft 420 to rotate, thereby driving the line guide 410 to perform a linear reciprocating motion.

With reference to FIG. 6, in an initial state of the fishing reel, the linkage device 200 is decoupled from the line spooler 100, in this case, there is a gap between the first driven friction member 220 and the first fixed friction member 111, and there is a gap between the second driven friction member 230 and the second fixed friction member 121; when the user drives the mounting shaft 210 to translate rightward for a first distance, the first driven friction member 220 comes into contact with the first fixed friction member 111, and in this case, a normal force exists between the first driven friction member 220 and the first fixed friction member 111, where when the mounting shaft 210 rotates, a friction is generated between the first driven friction member 220 and the first fixed friction member 111, thereby driving the line spooler 100 to rotate; and when the user further drives the mounting shaft 210 to translate rightward for a second distance, the normal force between the first driven friction member 220 and the first fixed friction member 111 increases, and during this process, the first driven friction member 220 squeezes the first fixed friction member 111 and thereby drives the line spooler 100 to translate rightward relative to the housing 10 of the fishing reel (the line spooler 100 has access to a certain movable space relative to the housing 10 of the fishing reel in an axial direction of the mounting shaft 210), such that the second fixed friction member 121 comes into contact with the second driven friction member 230, and in this case, a normal force exists between the second driven friction member 230 and the second fixed friction member 121.

It can be seen that when the line spooler 100 and the mounting shaft 210 rotate relative to each other or tend to rotate relative to each other, the normal force between the first driven friction member 220 and the first fixed friction member 111 and the normal force between the second driven friction member 230 and the second fixed friction member 121 may be changed by controlling a translation distance of the mounting shaft 210, to achieve the adjustment of the friction between the first driven friction member 220 and the first fixed friction member 111, and/or the friction between the second driven friction member 230 and the second fixed friction member 121. For example, when a lightweight fish is hooked, the friction may be reduced; and when a heavy fish is hooked, the friction may be increased.

Take the case that the first driven friction member 220 is in contact with the first fixed friction member 111 for illustration. When a fish is hooked, the fish instinctively pulls the fishing line, and accordingly, the fishing line may drive the line spooler 100 to rotate, such that the fishing line is unwound; and during this process, the line spooler 100 rotates relative to the mounting shaft 210, and accordingly, the first driven friction member 220 and the first fixed friction member 111 rotate relative to each other, such that a sliding friction is generated between the first driven friction member 220 and the first fixed friction member 111. By controlling the translation distance of the mounting shaft 210, magnitudes of a pair of normal forces interacting with each other between the first driven friction member 220 and the first fixed friction member 111 may be changed, and then a magnitude of the sliding friction between the first driven friction member 220 and the first fixed friction member 111 and/or a magnitude of the sliding friction between the second driven friction member 230 and the second fixed friction member 121 may be further changed, to achieve the adjustment of a line release speed of the fishing line. With reference to FIG. 6, when necessary to increase the line release speed, the mounting shaft 210 is controlled to translate leftward relative to the line spooler 100; and when necessary to reduce the line release speed, the mounting shaft 210 is controlled to translate rightward relative to the line spooler 100, where after the mounting shaft 210 moves for a certain distance, the second driven friction member 230 comes into contact with the second fixed friction member 121.

A limiting structure is arranged in the housing 10, and the limiting structure is configured to abut against the second driven friction member 230. When the second driven friction member 230 is pressed by the second fixed friction member 121, the limiting structure abuts against the second driven friction member 230 to prevent the second driven friction member 230 from further moving rightward, thereby ensuring that the second fixed friction member 121 and the second driven friction member 230 remain contact with each other.

As shown in FIG. 6, the linkage device 200 is connected to a first reset member 241 and a second reset member 242. The first reset member 241 is configured to provide a first reset force so as to drive the first driven friction member 220 to disengage from the first fixed friction member 111; and the second reset member 242 is configured to provide a second reset force so as to drive the second driven friction member 230 to disengage from the second fixed friction member 121.

Both the first reset member 241 and the second reset member 242 have elasticity. In this embodiment, both the first reset member 241 and the second reset member 242 employ springs, and are sleeved on the mounting shaft 210.

As shown in FIG. 6, a first connecting bearing 131 and a second connecting bearing 132 are fixedly disposed in the line spooler 100, the mounting shaft 210 extends through the first connecting bearing 131 and the second connecting bearing 132, and the mounting shaft 210 is in clearance fit with both the first connecting bearing 131 and the second connecting bearing 132, such that the mounting shaft 210 may slide relative to both the first connecting bearing 131 and the second connecting bearing 132. The first reset member 241 is disposed between the first driven friction member 220 and the first connecting bearing 131, and the first driven friction member 220 and the first connecting bearing 131 abut against two ends of the first reset member 241 respectively; and the second reset member 242 is disposed between the second driven friction member 230 and the second connecting bearing 132, and the second driven friction member 230 and the second connecting bearing 132 abut against two ends of the second reset member 242 respectively. The first fixed friction member 111 is located between the first driven friction member 220 and the first connecting bearing 131, and the second fixed friction member 121 is located between the second driven friction member 230 and the second connecting bearing 132.

When the linkage device 200 is decoupled from the line spooler 100, under the action of the first reset member 241 and the second reset member 242, the first driven friction member 220 is not in contact with the first fixed friction member 111, and the second driven friction member 230 is not in contact with the second fixed friction member 121; and when the linkage device 200 is coupled to the line spooler 100, both the first reset member 241 and the second reset member 242 are in a compressed state.

As shown in FIG. 1, in this embodiment, an adjustment device 500 is disposed on the housing 10 of the fishing reel. The adjustment device 500 is configured to drive the mounting shaft 210 to translate in a preset direction, such that the linkage device 200 is coupled to or decoupled from the line spooler 100. The preset direction is an axial direction of the mounting shaft 210.

As shown in FIGS. 7 and 8, the adjustment device 500 includes a shift lever 510, a base 520, and a sleeve ring 530.

A housing sleeve 511 of the shift lever 510 is sleeved on the sleeve ring 530, and the housing sleeve 511 is connected to the sleeve ring 530 in a synchronously rotatable manner.

The base 520 is slidably disposed on the housing 10 of the fishing reel, and a sliding direction of the base 520 relative to the housing 10 of the fishing reel is consistent with the axial direction of the mounting shaft 210. A boss 521 of the base 520 is provided with a placement hole 522, a pin shaft 523 is fixedly mounted in the placement hole 522, and a portion of the pin shaft 523 is located outside the placement hole 522. One end of the mounting shaft 210 is connected to the base 520.

The sleeve ring 530 is rotatably sleeved on the boss 521 of the base 520. The sleeve ring 530 is provided with a guide structure 531. The guide structure 531 is configured to drive the pin shaft 523 to translate in a direction parallel to the axial direction of the mounting shaft 210 when the sleeve ring 530 rotates.

As shown in FIG. 9, the sleeve ring 530 includes a first end face 532 and a second end face 533, and the first end face 532 and the second end face 533 are disposed at two axial ends of the sleeve ring 530 respectively. The first end face 532 is farther from the line spooler 100 than the second end face 533.

The guide structure 531 includes a guide surface, and the guide surface abuts against the pin shaft 523. In the axial direction of the mounting shaft 210, a distance between the guide surface and the line spooler 100 gradually increases from a proximal end to a distal end of the guide surface, where the proximal end of the guide surface is connected to the first end face 532.

With reference to FIGS. 2, 10, and 11, in an initial state, the pin shaft