Automatically adjust the fishing float device

Abstract

The application provides an automatic adjusting fish float device, which comprises a shell, a float locking part, a middle shaft, an upper oil seal, a lower oil seal, an oil cavity, a movable mechanism, a spring, an upper fixed part and a lower fixed part. The upper oil seal is sleeved on the middle shaft to form a sealed sliding connection and is fixed to the main body. The lower oil seal is sleeved on the middle shaft to form a sealed sliding connection and is fixed to the main body. The lower oil seal and the upper oil seal are spaced to form a sealed oil cavity filled with damping oil. The movable mechanism separates the oil cavity into an upper cavity and a lower cavity and comprises a first fixed ring fixed to the middle shaft, a U-shaped one-way oil seal sleeved on the first fixed ring and opening upward, a second fixed ring and a backflow groove. The backflow groove is connected with the upper cavity and the lower cavity. The spring is located in the lower cavity and has one end fixed to the movable mechanism and the other end fixed to the main body. The upper fixed part is fixed to the main body and is sleeved on the middle shaft to form a sliding connection. The lower fixed part is fixed to the middle shaft. Compared with the related art, the automatic adjusting fish float device has high fish float adjusting efficiency, is simple and convenient and has good experience effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fishing gear, in particular to an automatic adjusting float device. BACKGROUND

[0002] Fishing as a leisure and entertainment activity is more and more popular among people, and among them, platform fishing is more popular because of its simple equipment and easy learning.

[0003] In platform fishing, a float is needed to observe the action signal when a fish bites a hook. When using a float, the fisherman needs to connect the end of the fishing line to a sinker in the field water, and the sinker sinks to the bottom of the water. The float needs to be fixed at a position on the water surface. At this time, the fisherman needs to continuously move and adjust the relative distance of the sinker of the float to adapt to different water depths. Therefore, a long time is needed to repeatedly adjust the float before each fishing. It is not easy for beginners to quickly adjust the float to a reasonable position, and the adjustment speed is slow, resulting in a poor experience.

[0004] Therefore, it is necessary to provide a new automatic adjusting float device to solve the above problems. SUMMARY

[0005] The technical problem to be solved by the present application is to provide an automatic adjusting float device with simple and fast float adjustment, better user experience, and the like.

[0006] To solve the above technical problems, the present application provides an automatic adjusting float device, comprising:

[0007] A shell, the shell comprising a hollow columnar main body, two cylindrical terminal posts protruding from the opposite sides of the bottom end of the main body, and a terminal slot recessed from the surface of the terminal post, the terminal slot penetrating the terminal post along the axial direction of the terminal post;

[0008] A float locking component installed at the top end of the main body for fixing the float;

[0009] A middle shaft inserted into the inside of the main body;

[0010] An upper oil seal sleeved on the middle shaft and forming a sealed sliding connection with the middle shaft, the outer circumferential side of the upper oil seal being fixed to the inner circumferential side of the main body and forming a seal;

[0011] A lower oil seal sleeved on the middle shaft and forming a sealed sliding connection with the middle shaft, the outer circumferential side of the lower oil seal being fixed to the inner circumferential side of the main body and forming a seal; the lower oil seal and the upper oil seal are spaced apart and jointly isolate the inside of the main body to form a sealed oil cavity, and the oil cavity is filled with damping oil;

[0012] A movable mechanism, wherein the movable mechanism is located in the oil chamber and divides the oil chamber into an upper chamber and a lower chamber, and the movable mechanism is provided with a reflux groove running through it to connect the upper chamber and the lower chamber; the movable mechanism comprises a first fixing ring sleeved on the central shaft and fixedly connected, a U-shaped one-way oil seal sleeved on the first fixing ring, and a second fixing ring sleeved and fixed on the central shaft and fixedly connected, and the outer circumference of the second fixing ring is spaced from the inner circumference of the main body; the outer circumference of the first fixing ring is spaced from the inner circumference of the main body; the open end of the U-shaped one-way oil seal faces the top end of the main body, and the outer circumference of the second fixing ring is in sliding connection with the inner circumference of the main body; the second fixing ring abuts against the first fixing ring, and together with the first fixing ring, the U-shaped one-way oil seal sleeve is clamped;

[0013] A spring is located in the lower cavity, one end of the spring is fixed to the movable mechanism, and the other end of the spring is fixed to a position of the main body close to the lower oil seal.

[0014] an upper fixing portion, the upper fixing portion being fixed to the inner circumference of the main body and being located on a side of the lower oil seal away from the upper oil seal, the upper fixing portion being sleeved on the central shaft to form a sliding connection; and

[0015] A lower fixing portion is fixedly connected to the central shaft, abuts against a side of the upper fixing portion away from the lower oil seal and is at least partially exposed from the main body.

[0016] Preferably, the first fixing ring includes a first fixing ring body which is sleeved on the central axis and fixedly connected thereto, and a limiting portion which extends radially outward from one end of the first fixing ring body and is spaced from the inner circumference of the main body. The U-shaped one-way oil seal is sleeved and fixed on the first fixing ring body, and the open end of the U-shaped one-way oil seal is connected to the upper cavity. The second fixing ring abuts against the first fixing ring body.

[0017] Preferably, one of the second fixing ring and the first fixing ring body is provided with an alignment groove, and the other one is provided with an alignment protrusion matching the alignment groove.

[0018] Preferably, the first fixing ring is provided with a first reflow groove running through it, and the second fixing ring is provided with a second reflow groove running through it, and the first reflow groove and the second reflow groove are interconnected and together form the reflow groove.

[0019] Preferably, the reflux groove is provided through the U-shaped one-way oil seal.

[0020] Preferably, the upper fixing part includes an upper fixing cover fixed to the inner circumference of the main body and sleeved on the central axis, and an upper magnetic ring accommodated and fixed in the upper fixing cover; the lower fixing part includes a lower fixing cover fixed to the central axis and a lower magnetic ring accommodated and fixed in the lower fixing cover, and the upper magnetic ring abuts against the lower magnetic ring.

[0021] Preferably, the float locking component includes an elastic float locking ring and a float locking nut for fixing the fishing float. The outer peripheral side of the top of the main body is provided with an external thread matching the float locking nut. The float locking nut is sleeved on the float locking ring and forms a threaded connection with the main body to fix the float locking ring to the top of the main body.

[0022] Preferably, the float locking component includes a connecting column arranged perpendicular to the main body and located above the main body, a hollow tubular float seat fixed to the connecting column and extending axially along the main body, and a steel wire fixing both ends of the connecting column to the main body, and the float seat is made of elastic material.

[0023] Preferably, the central axis is a hollow stainless steel tube.

[0024] Preferably, the central axis further includes a carbon fiber rod housed in the stainless steel tube.

[0025] Preferably, the central axis also includes a screw rod partially housed in the stainless steel tube and formed to be fixed, the screw rod is partially exposed at the bottom end of the main body, and the lower fixing portion is threadedly connected to the portion of the screw rod exposed at the main body.

[0026] Preferably, it further comprises a C-shaped fixing ring, which is sleeved on the terminal post and forms a rotational connection with the terminal post.

[0027] Compared with the prior art, in the automatic adjustment fishing float device of the present invention, a reflux groove connecting the upper cavity and the lower cavity is provided on the movable mechanism, and a U-shaped one-way oil seal is provided on the open end groove of the movable mechanism. Thus, when the movable mechanism moves downward, the damping oil in the lower cavity can flow to the upper cavity through the gap between the movable mechanism and the inner side wall of the main body and the reflux groove of the movable mechanism. The flow speed is large, and the movable mechanism moves downward quickly, that is, the lower fixed part at the bottom end of the main shaft can be quickly pulled downward; the movable mechanism moves upward under the action of the restoring force generated when the spring is reset, and the damping oil in the upper cavity is discharged to the upper cavity. The lower cavity is backflowing, and at this time, the U-shaped one-way oil seal is pressed downward by the front side because its open end expands to abut against the inner circumference of the main body, thereby blocking the backflow of this path. It can only flow back to the lower cavity from the reflux groove of the movable mechanism, and the reflux speed is slow, so that it takes a buffer time for the lower fixed part to return to abut against the upper fixed part, and this buffer time is enough to make the lead pendant sink to the bottom of the water quickly. When the lower fixed part returns to abut against the upper fixed part, it clamps the fishing line, which is equivalent to fixing the position of the float, thereby achieving a fast automatic adjustment effect, easy to use, simple and quick to adjust, and better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of the automatic adjustment fishing float device of the present invention, in which the fishing float, fishing line and lead sinker have been installed;

[0029] Figure 2 This is a schematic diagram of a partial exploded three-dimensional structure of the automatic adjustment fishing float device of the present invention;

[0030] Figure 3 Schematic cross-section of the automatic fishing float adjustment device of the present invention;

[0031] Figure 4 This is a structural schematic diagram of another embodiment of the floating lock component 3 of the automatic fishing float adjustment device of the present invention. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] Please refer to Figure 1-3 As shown, the present invention provides an automatic adjustment fishing float device 100, including a shell 1, a C-shaped fixing ring 2, a float locking component 3, a central axis 4, an upper oil seal 5, a lower oil seal 6, a movable mechanism 7, a spring 8, an upper fixing part 9, and a lower fixing part 10.

[0034] The housing 1 includes a hollow cylindrical body 11, two cylindrical connecting posts 12 protruding from opposite sides of the bottom end of the body 11, and a connecting slot 13 formed by a depression on the surface of the connecting posts 12. The connecting slot 13 passes through the connecting post 12 along the axial direction of the connecting post 12 and is used to accommodate a fishing line.

[0035] Of course, an anti-slip cover 14 can also be provided on the outside of the main body.

[0036] The C-shaped fixing ring 2 is sleeved on the terminal 12 and forms a rotational connection with the terminal 12. By rotating the C-shaped fixing ring 2 so that its opening position is aligned with the terminal slot 13, the fishing line 20 can be placed in the terminal slot 13, and then the C-shaped fixing ring 2 is rotated so that its opening position is offset from the terminal slot 13, thereby limiting the fishing line 20 and preventing it from falling out. Of course, it is also feasible to do without the C-shaped fixing ring 2, that is, to route the line directly through the terminal slot 13. More preferably, the end of the terminal 12 away from the main body 11 extends along the radial direction of the terminal 12 to form a limiting wall 121, which is used to limit the C-shaped fixing ring 2 and prevent it from sliding out of the terminal 12 along the axial direction of the terminal 12, thereby improving reliability.

[0037] More preferably, a limit spring 15 can be provided on the terminal 12, with one end of the limit spring 15 fixed to the terminal 12 and the other end bent to a gap spaced apart from the terminal 12, thereby forming a limit space together. The fishing line 20 can first enter the limit spring 15 through the gap, thereby preventing the fishing line 20 from swinging too much during installation and preventing the fishing line 20 from sliding out directly, thereby effectively improving the installation efficiency.

[0038] The float locking component 3 is installed on the top of the main body 11 and is used to fix the fishing float 30.

[0039] There are many ways to fix the fishing float 30. In this embodiment, two embodiments of the locking float component are provided:

[0040] exist Figure 1-3 In the embodiment of the present invention, the locking float component 3 includes an elastic locking float ring 31 and a locking float nut 32 for fixing the fishing float 30. The outer peripheral side of the top of the main body 11 is provided with an external thread matching the locking float nut 32. The locking float nut 32 is sleeved on the locking float ring 31 and forms a threaded connection with the main body 11 to fix the locking float ring 31 to the top of the main body 11. At this time, the fixed end of the fishing float 30 is inserted into the locking float ring 31 through the locking float nut 32, and the fishing float 30 is fixed by the locking float ring 31.

[0041] like Figure 4As shown, it is an automatic float adjustment device using another type of lock float component. The lock float component 403 includes a connecting column 4031 arranged perpendicular to the main body 11 and located above the main body 11, a hollow tubular float seat 4032 fixed to the connecting column 4031 and extending along the axial direction of the main body 11, and a steel wire 4033 fixing both ends of the connecting column 4031 to the main body 11. The float seat 4032 is made of elastic material. At this time, the fixed end of the fishing float 30 can be inserted into the beautiful recognition 4032. Because the float seat 4032 is elastic, its inner diameter is slightly smaller than the outer diameter of the fixed end of the fishing float 30. It is fixed by elastic deformation, which has better reliability.

[0042] Of course, the fixing method of the fishing float 30 is not limited to the above two methods.

[0043] The central axis 4 is inserted into the main body 11 .

[0044] In this embodiment, the central axis 4 is a hollow stainless steel tube 41 , which has high hardness and light weight, thereby avoiding affecting the counterweight of the fishing float 30 .

[0045] More preferably, the strength of the central axis 4 is increased without increasing the weight of the fishing float 30 as much as possible, and the central axis 4 further includes a carbon fiber rod 42 accommodated in the stainless steel tube 41.

[0046] More preferably, the central axis 4 also includes a screw rod 43 that is partially housed in the stainless steel tube 41 and forms a fixed portion, and the screw rod 43 is partially exposed at the bottom end of the main body 11. The lower fixing portion 10 and the central axis 4 are fixed in a threaded connection through the lower fixing portion 10 and the portion of the screw rod 43 exposed at the main body 11. This connection method is convenient for disassembly and maintenance.

[0047] That is, in the automatic float adjustment device 100 of the present invention, the central axis 4 can be a stainless steel tube 41. However, due to the small size of the automatic float adjustment device 100, in order to increase the structural strength, the central axis 4 can also be a combination of a stainless steel tube 41 and a fiber rod 42, or a combination of a stainless steel tube 41, a fiber rod 42 and a screw rod 43. Of course, this is not limited to the above examples.

[0048] The upper oil seal 5 is sleeved on the central shaft 4 to form a seal and is in sliding connection with the central shaft 4 . The outer circumference of the upper oil seal 5 is fixed to the inner circumference of the main body 11 to form a seal.

[0049] The lower oil seal 6 is sleeved on the central shaft 4 to form a seal and is in sliding connection with the central shaft 4 . The outer peripheral side of the lower oil seal 6 is fixed to the inner peripheral side of the main body 11 to form a seal.

[0050] The lower oil seal 6 and the upper oil seal 5 are spaced apart and together isolate the interior of the main body 11 to form a sealed oil cavity. The oil cavity is filled with damping oil, such as dimethyl silicone oil.

[0051] The movable mechanism 7 is located in the oil chamber and divides the oil chamber into an upper chamber 601 and a lower chamber 602 . The movable mechanism 7 is provided with a reflux groove running through the movable mechanism 7 to connect the upper chamber 601 and the lower chamber 602 .

[0052] The movable mechanism 7 includes a first fixing ring 71 that is sleeved on the central shaft 4 and fixedly connected, a U-shaped one-way oil seal 72 that is sleeved on the first fixing ring 71, and a second fixing ring 73 that is sleeved and fixed on the central shaft and fixedly connected, and the outer circumference of the second fixing ring is spaced from the inner circumference of the main body 11.

[0053] An outer circumference of the first fixing ring 71 is spaced apart from an inner circumference of the main body 11 , and an outer circumference of the second fixing ring 73 is spaced apart from an inner circumference of the main body 11 .

[0054] The second fixing ring 73 abuts against the first fixing ring 71 , and together with the first fixing ring 71 , sandwiches the U-shaped one-way oil seal 72 .

[0055] The open end of the U-shaped one-way oil seal 72 faces the top of the main body 11, and the outer circumference of the U-shaped one-way oil seal 72 forms a sliding connection with the inner circumference of the main body 11. It should be noted that the sliding connection here means that the outer circumference of the U-shaped one-way oil seal 72 is spaced apart from or abuts the inner circumference of the main body 11, but is not fixedly connected.

[0056] Specifically, in this embodiment, the first fixing ring 71 includes a first fixing ring body 711 that is sleeved and fixedly connected to the central shaft 4, and a stopper 712 that extends radially outward from one end of the first fixing ring body 711 and is spaced from the inner circumference of the main body 11. The U-shaped one-way oil seal 72 is sleeved and fixed to the first fixing ring body 711, and the open end of the U-shaped one-way oil seal 72 is in communication with the upper chamber 601. The stopper 712 can be located above or below the U-shaped one-way oil seal 72, and the principles are the same.

[0057] The spring 8 is located in the lower cavity 602 , with one end of the spring 8 fixed to the movable mechanism 7 and the other end of the spring 8 fixed to a position of the main body 11 close to the lower oil seal 6 .

[0058] The upper fixing portion 9 is fixed to the inner circumference of the main body 11 and is located on a side of the lower oil seal 6 away from the upper oil seal 5 . The upper fixing portion 9 is sleeved on the central shaft 4 to form a sliding connection.

[0059] The lower fixing portion 10 is fixedly connected to the central shaft 4, for example, by forming a threaded connection with the portion of the screw rod 43 of the central shaft 4 that is exposed from the main body 11. The lower fixing portion 10 abuts against a side of the upper fixing portion 9 that is away from the lower oil seal 6 and is at least partially exposed from the main body 11. The portion of the lower fixing portion 10 that is exposed from the main body 11 is used for hand-held application during use, making it easier to pull the lower fixing portion 10 downward.

[0060] When in use, the fishing float 30 is fixed to the locking float component 3, and the lower fixed part 10 is pulled downward to drive the central axis 4 downward, thereby driving the movable mechanism 7 to slide downward. At this time, the damping oil in the lower chamber 602 flows to the upper chamber 601 through two paths: the gap between the movable mechanism 7 and the inner wall of the main body 11 (path one) and the reflux groove of the movable mechanism 7 (path two). Moreover, when flowing through path one, the pressure causes the U-shaped one-way oil seal 72 to be compressed inward, making the gap larger, so that the damping oil can quickly flow from the lower chamber 601 to the upper chamber 602, thereby realizing the rapid withdrawal of the lower fixed part 10. At this time, the fishing line 20 is passed through the terminal 12 and placed between the upper connecting part 9 and the lower connecting part 10, and the lead sinker 40 on the fishing line 20 and the automatic float adjustment device 100 are thrown into the water. At this time, the fishing float 30 needs to float on the water surface, and the lead sinker 40 sinks rapidly due to gravity, thereby driving the fishing line 20 to sink downward, and the movable mechanism 7 moves upward under the action of the restoring force generated when the spring 8 is reset, and the damping oil in the upper chamber 601 flows back to the lower chamber 602. At this time, the U-shaped one-way oil seal 72 is pressed downward by the front side, so that the open end expands to abut the inner peripheral side of the main body 11, thereby blocking this path (path one). The reflux can only flow back through the reflux groove of the second path of the movable mechanism 7, and the reflux speed is slow, so that the lower fixing part 10 needs a buffer time to return to abut against the upper fixing part 9, and the buffer time is sufficient to make the lead weight 40 sink to the bottom of the water quickly. When the lower fixing part 10 returns to abut against the upper fixing part 9, the upper fixing part 9 and the lower fixing part 10 jointly clamp the fishing line 20, which is equivalent to determining the position of the fishing float 30 on the fishing line 20 when the lead weight 40 is just at the bottom of the water, and fixing the position of the fishing float 30, thereby achieving a fast automatic adjustment effect, easy to use, simple and quick adjustment, and better user experience.

[0061] Specifically, the first fixing ring 71 is provided with a first reflux groove 710 running through it, and the second fixing ring 73 is provided with a second reflux groove 74 running through it. The second reflux groove 74 and the first reflux groove 710 are interconnected to form the reflux groove, thereby jointly connecting the upper cavity 601 and the lower cavity 602.

[0062] The provision of the second fixing ring 73 makes the structure of the movable mechanism 7 more stable and reliable.

[0063] The first fixing ring 71 and the second fixing ring 73 can respectively generate thrust on the U-shaped one-way oil seal 72 when the central shaft 4 retracts upward or is pulled downward, thereby preventing the U-shaped one-way oil seal 72 from excessive deformation and failure.

[0064] Of course, it is also feasible to only have one fixing ring. For example, only the first fixing ring 71 is designed. In this case, the U-shaped one-way oil seal 72 is directly fixedly connected to the middle shaft 4 on the side close to the middle shaft 4 or is directly fixedly connected to the first fixing ring 71, so that when the middle shaft 4 moves up and down, the U-shaped one-way oil seal 72 can be effectively driven to move. However, since the U-shaped one-way oil seal 72 is made of rubber, the direct fixed connection method does not achieve good results, and the U-shaped one-way oil seal 72 is prone to excessive deformation, resulting in poor circulation of the damping oil, thereby affecting the effect of automatic buffer adjustment.

[0065] Of course, the arrangement of the reflux groove is not limited thereto. For example, the reflux groove may be arranged to penetrate the U-shaped one-way oil seal 72 , which is also feasible.

[0066] Preferably, one of the second fixing ring 73 and the first fixing ring body 711 is provided with an alignment groove 75, and the other is provided with an alignment protrusion 76 that matches the alignment groove 75. The alignment protrusion 76 is locked in the alignment groove 75. This structural arrangement can accurately align and connect the first reflow groove 710 and the second reflow groove 74, thereby improving assembly reliability and efficiency.

[0067] More preferably, in this embodiment, the upper fixing portion 9 includes an upper fixing cover 91 fixed to the inner circumference of the main body 11 and sleeved on the central axis 4, and an upper magnetic ring 92 accommodated and fixed in the upper fixing cover 91. The lower fixing portion 10 includes a lower fixing cover 101 fixed to the central axis 4 and a lower magnetic ring 102 accommodated and fixed in the lower fixing cover 101, and the upper magnetic ring 92 abuts against the lower magnetic ring 102. The arrangement of the upper magnetic ring 92 and the lower magnetic ring 101 can increase the clamping auxiliary force of the fishing line 20 through magnetic attraction, thereby achieving a more reliable clamping effect for adjusting the position of the fishing float 30.

[0068] Compared with the prior art, in the automatic adjustment fishing float device of the present invention, a reflux groove connecting the upper cavity and the lower cavity is provided on the movable mechanism, and a U-shaped one-way oil seal is provided on the open end groove of the movable mechanism. Thus, when the movable mechanism moves downward, the damping oil in the lower cavity can flow to the upper cavity through the gap between the movable mechanism and the inner side wall of the main body and the reflux groove of the movable mechanism. The flow speed is large, and the movable mechanism moves downward quickly, that is, the lower fixed part at the bottom end of the main shaft can be quickly pulled downward; the movable mechanism moves upward under the action of the restoring force generated when the spring is reset, and the damping oil in the upper cavity is discharged to the upper cavity. The lower cavity is backflowing, and at this time, the U-shaped one-way oil seal is pressed downward by the front side because its open end expands to abut against the inner circumference of the main body, thereby blocking the backflow of this path. It can only flow back to the lower cavity from the reflux groove of the movable mechanism, and the reflux speed is slow, so that it takes a buffer time for the lower fixed part to return to abut against the upper fixed part, and this buffer time is enough to make the lead pendant sink to the bottom of the water quickly. When the lower fixed part returns to abut against the upper fixed part, it clamps the fishing line, which is equivalent to fixing the position of the float, thereby achieving a fast automatic adjustment effect, easy to use, simple and quick to adjust, and better user experience.

[0069] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic adjustment fishing float device, characterized in that: include: The housing includes a main body in the shape of a hollow column, two cylindrical terminals protruding from opposite sides of the bottom end of the main body, and a terminal slot formed by a depression on the surface of the terminal, the terminal slot penetrating the terminal along the axial direction of the terminal; A float locking component, which is mounted on the top of the main body and is used to fix the fishing float; a central axis, the central axis being inserted into the interior of the main body; An upper oil seal, the upper oil seal is provided on the central shaft to form a seal and is in sliding connection with the central shaft, the outer peripheral side of the upper oil seal is fixed to the inner peripheral side of the main body to form a seal; a lower oil seal, the lower oil seal being sleeved on the central shaft to form a seal and forming a sliding connection with the central shaft, the outer circumference of the lower oil seal being fixed to the inner circumference of the main body to form a seal; the lower oil seal and the upper oil seal being spaced apart and jointly isolating the interior of the main body to form a sealed oil chamber, the oil chamber being filled with damping oil; A movable mechanism, the movable mechanism is located in the oil chamber and divides the oil chamber into an upper chamber and a lower chamber, and the movable mechanism is provided with a reflux groove running through it to connect the upper chamber and the lower chamber; the movable mechanism includes a first fixing ring sleeved on the central shaft and fixedly connected, a U-shaped one-way oil seal sleeved on the first fixing ring, and a second fixing ring sleeved and fixed on the central shaft and fixedly connected, and the outer circumference of the second fixing ring is spaced from the inner circumference of the main body; the outer circumference of the first fixing ring is spaced from the inner circumference of the main body; the open end of the U-shaped one-way oil seal faces the top end of the main body, and the outer circumference of the second fixing ring is in sliding connection with the inner circumference of the main body; the second fixing ring abuts against the first fixing ring, and together with the first fixing ring, the U-shaped one-way oil seal is clamped; a spring, the spring being located in the lower cavity, one end of the spring being fixed to the movable mechanism, and the other end of the spring being fixed to a position of the main body close to the lower oil seal; an upper fixing portion, the upper fixing portion being fixed to the inner circumference of the main body and being located on a side of the lower oil seal away from the upper oil seal, the upper fixing portion being sleeved on the central shaft to form a sliding connection; and a lower fixing portion, the lower fixing portion being fixedly connected to the central shaft, the lower fixing portion being in contact with a side of the upper fixing portion away from the lower oil seal and at least partially exposed from the main body; The first fixing ring includes a first fixing ring body that is sleeved on the central shaft and fixedly connected thereto, and a stopper portion that extends radially outward from one end of the first fixing ring body and is spaced from the inner circumference of the main body. The U-shaped one-way oil seal is sleeved and fixed on the first fixing ring body, and the open end of the U-shaped one-way oil seal is in communication with the upper cavity. The second fixing ring abuts against the first fixing ring body. The first fixing ring is provided with a first reflow groove running through it, and the second fixing ring is provided with a second reflow groove running through it. The first reflow groove and the second reflow groove are interconnected and together form the reflow groove.

2. The automatic adjustment fishing float device according to claim 1, characterized in that: One of the second fixing ring and the first fixing ring body is provided with an alignment groove, and the other one is provided with an alignment protrusion matching the alignment groove.

3. The automatic adjustment fishing float device according to claim 1, characterized in that: The reflux groove is arranged to pass through the U-shaped one-way oil seal.

4. The automatic adjustment fishing float device according to claim 1, characterized in that: The upper fixing part includes an upper fixing cover fixed to the inner circumference of the main body and sleeved on the central axis, and an upper magnetic ring accommodated and fixed in the upper fixing cover; the lower fixing part includes a lower fixing cover fixed to the central axis and a lower magnetic ring accommodated and fixed in the lower fixing cover, and the upper magnetic ring abuts against the lower magnetic ring.

5. The automatic adjustment fishing float device according to claim 1, characterized in that: The float locking component includes an elastic float locking ring and a float locking nut for fixing the fishing float. The outer peripheral side of the top of the main body is provided with an external thread matching the float locking nut. The float locking nut is sleeved on the float locking ring and forms a threaded connection with the main body to fix the float locking ring to the top of the main body.

6. The automatic adjustment fishing float device according to claim 1, characterized in that: The float locking component includes a connecting column arranged perpendicular to the main body and located above the main body, a hollow tubular float seat fixed to the connecting column and extending axially along the main body, and a steel wire fixing both ends of the connecting column to the main body. The float seat is made of elastic material.

7. The automatic adjustment fishing float device according to claim 1, characterized in that: The central axis is a hollow stainless steel tube.

8. The automatic adjustment fishing float device according to claim 7, characterized in that: The central shaft further includes a carbon fiber rod housed in the stainless steel tube.

9. The automatic adjustment fishing float device according to claim 8, characterized in that: The central shaft also includes a screw rod partially housed in the stainless steel tube and formed to be fixed, the screw rod is partially exposed at the bottom end of the main body, and the lower fixing portion is threadedly connected to the portion of the screw rod exposed at the main body.

10. The automatic adjustment fishing float device according to claim 1, characterized in that: It also includes a C-shaped fixing ring, which is sleeved on the terminal and forms a rotational connection with the terminal.

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