A bicycle bearing structure that is easy to disassemble and assemble

Abstract

The invention discloses a bearing structure for a bicycle which is easy to disassemble and assemble, comprising an outer ring, an inner ring and a ball located between the outer ring and the inner ring, an annular cavity one being provided in the inner hollow of the outer ring, an outer ring adjusting component being movably provided in the annular cavity one, the outer ring adjusting component being connected to a plurality of threaded rods one by a threaded structure respectively, the threaded rod one being slidably clamped in the outer ring, one end of the threaded rod one being fixedly connected to an outer top plate, the outer top plate being evenly arranged around the circumference and movably arranged on the outer side of the outer ring respectively, the outer ring adjusting component being transmission-connected to an outer ring adjusting disk, the outer ring adjusting disk being rotationally arranged on the outer ring; an annular cavity two being provided in the inner hollow of the inner ring, an inner ring adjusting component being movably provided in the annular cavity two, the inner ring adjusting component being connected to a plurality of threaded rods two by a threaded structure respectively, the threaded rod two being slidably clamped in the inner ring, one end of the threaded rod two being fixedly connected to the inner top plate, the inner top plate being evenly arranged around the circumference and movably arranged on the inner side of the inner ring respectively, and the inner ring adjusting component being transmission-connected to the inner ring adjusting disk.

Description

Technical Field

[0001] The invention relates to the technical field of bicycle bearings, in particular to a bearing structure for bicycles which is convenient for disassembly and assembly. Background Art

[0002] Bearings are an important component in contemporary mechanical equipment. Its main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. Bearings are used in many parts of bicycles, such as pedal bearings, middle shaft bearings, etc. The middle shaft is a load-bearing and transmission part, and its role is crucial. Its core component is the bearing. The performance of the bearing is directly related to the consumer's experience and the service life of the bicycle middle shaft. For example, the Chinese patent with publication number CN216618251U discloses a bicycle waterproof bearing, including an inner ring, an outer ring, a ball and a cage. Seals are provided between the inner ring and the outer ring at both ends of the axial direction. The seals include a skeleton, and a three-lip seal is provided on the outer sleeve of the skeleton. When the utility model is used, the skeleton is sealed and connected with the inner ring, the outer ring and the cage through the three-lip seal of the front seal and the back seal, thereby effectively improving the waterproof and rust-proof performance.

[0003] The bearing has extremely high waterproof and rust-proof properties, but when installed on a bicycle frame, it is generally connected through an interference fit. When the bearing is worn and needs to be replaced, it is usually necessary to knock it with external force to make the bearing rush out. During the external force knocking process, it is easy to cause damage to the bicycle frame or other matching parts. The overall disassembly and assembly is not convenient and fast enough. For this reason, we propose a bicycle bearing structure that is easy to disassemble and assemble to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a bearing structure for a bicycle that is easy to assemble and disassemble, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bearing structure for bicycles that is easy to disassemble and assemble, comprising an outer ring, an inner ring and a ball located between the outer ring and the inner ring, the inner hollow of the outer ring is provided with an annular cavity 1, an outer ring adjustment component is movably provided in the annular cavity 1, the outer ring adjustment component is respectively connected with a plurality of threaded rods 1 through a threaded structure, the threaded rods 1 are slidably clamped to the outer ring, one end of the threaded rods 1 is fixedly connected to an outer top plate, the outer top plates are evenly arranged around the circumference and are movably arranged on the outside of the outer ring, the outer ring adjustment component is transmission-connected to an outer ring adjustment disk, and the outer ring adjustment disk is rotatably arranged on the outer ring;

[0006] The inner hollow interior of the inner ring is provided with an annular cavity II, an inner ring adjustment assembly is movably provided in the annular cavity II, the inner ring adjustment assembly is connected to a plurality of threaded rods II through a threaded structure respectively, the threaded rods II are slidably engaged with the inner ring, one end of the threaded rods II is fixedly connected to an inner top plate, the inner top plates are evenly distributed around the circumference and movably arranged on the inner side of the inner ring, the inner ring adjustment assembly is transmission-connected to an inner ring adjustment disk, and the inner ring adjustment disk is rotatably arranged on the inner ring.

[0007] Preferably, the outer side walls of the outer ring are respectively provided with a plurality of embedding grooves, and the depth of the embedding grooves is consistent with the thickness of the outer top plate.

[0008] Preferably, the inner side walls of the inner ring are respectively provided with a plurality of embedding openings, and the structure of the embedding openings is consistent with the structure of the inner top plate.

[0009] Preferably, the outer top plate and the inner top plate are both arc-shaped plates, the outer side of the outer top plate is provided with outer anti-slip grooves, and the inner side of the inner top plate is provided with inner anti-slip grooves.

[0010] Preferably, the outer ring adjustment assembly includes a rotating ring 2, an inner gear ring 2, an end face gear ring 2, a threaded barrel 2, and a driven gear 2. The rotating ring 2 is rotatably installed in an annular cavity 1. The rotating ring 2 is fixedly sleeved with the inner gear ring 2. One end face of the rotating ring 2 is fixedly connected to the end face gear ring 2. The end face gear ring 2 is meshingly connected to the driven gear 2. The driven gear 2 is fixedly sleeved with one side of the threaded barrel 2. The two ends of the threaded barrel 2 are respectively rotatably connected to the inner walls of the two sides of the annular cavity 1.

[0011] Preferably, the inner gear ring 2 is meshingly connected with a driving gear 1, the driving gear 1 is fixedly sleeved on a rotating shaft 1, both sides of the rotating shaft 1 are rotatably connected to the outer ring, both ends of the rotating shaft 1 are fixedly connected to the outer ring adjustment disk, the outer ring adjustment disk is rotatably arranged in the outer ring groove, and the outer ring groove is concavely arranged on the outer walls on both sides of the outer ring.

[0012] Preferably, the outer ring adjustment disk and the rotating shaft are arranged coaxially, the axis of the outer ring adjustment disk and the axis of the outer ring are arranged parallel to each other, and the axis of the threaded rod 1 and the axis of the outer ring are arranged perpendicular to each other.

[0013] Preferably, the inner ring adjustment assembly includes a rotating ring 1, an inner gear ring 1, and a threaded barrel 1. The rotating ring 1 is rotatably installed in the annular cavity 2. The rotating ring 1 is fixedly sleeved with the inner gear ring 1. One end face of the rotating ring 1 is fixedly connected to the end face gear ring 1. The end face gear ring 1 is meshedly connected to the driven gear 1. The driven gear 1 is fixedly sleeved with one side of the threaded barrel 1. The two ends of the threaded barrel 1 are respectively rotatably connected to the inner walls of the two sides of the annular cavity 2.

[0014] Preferably, the inner gear ring 1 is meshedly connected with a driving gear 2, the driving gear 2 is fixedly sleeved on a rotating shaft 2, both sides of the rotating shaft 2 are rotatably connected to the inner ring, both ends of the rotating shaft 2 are fixedly connected to an inner ring adjustment disk, the inner ring adjustment disk is rotatably arranged in an inner ring groove, and the inner ring groove is concavely arranged on the outer walls on both sides of the inner ring.

[0015] Preferably, the inner ring adjustment disk and the second rotating shaft are coaxially arranged, the axis of the inner ring adjustment disk and the axis of the inner ring are parallel to each other, and the axis of the second threaded rod and the axis of the inner ring are perpendicular to each other.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting the outer top plate and the inner top plate, both of which are evenly distributed around the circumference, when the outer top plate and the inner top plate are extended, they abut against the bicycle frame and the shaft sleeve to achieve fixed installation of the bearing; when the outer top plate and the inner top plate are retracted, they are separated from the abutment against the bicycle frame and the shaft sleeve to achieve removal of the bearing; the overall operation is simple and convenient, and there is no need to use traditional interference fit knocking disassembly and assembly, thereby protecting the overall integrity of the bicycle frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the outer ring of the present invention;

[0019] Figure 3 It is a schematic diagram of a partial cross-sectional structure from the bottom surface perspective of the outer ring of the present invention;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention.

[0021] In the figure: outer ring 1, outer ring groove 11, embedding groove 12, annular cavity 13, ball 2, inner ring 3, inner ring groove 31, embedding port 32, annular cavity 2 33, outer top plate 4, outer anti-skid pattern 41, threaded rod 1 5, inner ring adjustment assembly 6, rotating ring 1 61, inner gear ring 1 62, threaded barrel 1 63, outer ring adjustment disk 7, rotating shaft 1 71, driving gear 1 72, inner ring adjustment disk 8, rotating shaft 2 81, driving gear 2 82, outer ring adjustment assembly 9, rotating ring 2 91, inner gear ring 2 92, end face gear ring 2 93, threaded barrel 2 94, driven gear 2 95, inner top plate 10, inner anti-skid pattern 101, threaded rod 2 102. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1

[0024] Reference Figure 1 , 2 , which is the first embodiment of the present invention, and provides a bearing structure for bicycles that is easy to disassemble and assemble, including an outer ring 1, an inner ring 3, and a ball 2 located between the outer ring 1 and the inner ring 3. The inner hollow of the outer ring 1 is provided with an annular cavity 13, and an outer ring adjustment component 9 is movably provided in the annular cavity 13. The outer ring adjustment component 9 is respectively connected with a plurality of threaded rods 5 through a threaded structure, and the threaded rods 5 are slidably engaged with the outer ring 1, and one end of the threaded rods 5 is fixedly connected with an outer top plate 4, and the outer top plates 4 are evenly distributed around the circumference and are movably arranged on the outer side of the outer ring 1, and the outer ring adjustment component 9 is transmission-connected with an outer ring adjustment disk 7, and the outer ring adjustment disk 7 is rotatably arranged on the outer ring 1;

[0025] The inner hollow interior of the inner ring 3 is provided with an annular cavity 2 33, and an inner ring adjustment component 6 is movably provided in the annular cavity 2 33. The inner ring adjustment component 6 is connected to a plurality of threaded rods 2 102 through a threaded structure, and the threaded rods 2 102 are slidably engaged with the inner ring 3. One end of the threaded rods 2 102 is fixedly connected to an inner top plate 10, and the inner top plates 10 are evenly distributed around the circumference and movably arranged on the inner side of the inner ring 3. The inner ring adjustment component 6 is transmission-connected to an inner ring adjustment disk 8, and the inner ring adjustment disk 8 is rotatably arranged on the inner ring 3.

[0026] During installation, the inner ring 3 is sleeved on the bicycle axle, and the outer ring 1 is sleeved in the frame shaft tube. The outer end surface of the inner ring adjustment disk 8 is provided with a cross slot. Use a screwdriver with the cross slot to rotate the inner ring adjustment disk 8. The inner ring adjustment disk 8 drives the threaded rod 2 102 to move linearly through the transmission of the inner ring adjustment assembly 6. The threaded rod 2 102 drives the inner top plate 10 fixed at the end to extend, and the inner top plate 10 then clamps the axle to fix the inner ring 3. The outer end surface of the outer ring adjustment disk 7 is also provided with a cross slot. Use a screwdriver with the cross slot to rotate the inner ring adjustment disk 8. The cross groove of the outer ring adjusting disk 7 drives the outer ring adjusting disk 7 to rotate. The outer ring adjusting disk 7 cooperates with the outer ring adjusting assembly 9. The transmission drives the threaded rod 5 to extend. The threaded rod 5 drives the outer top plate 4 fixed at the end to extend. The outer top plate 4 abuts against the frame shaft tube, and then fixes the outer ring 1. When disassembling, the inner ring 3 or the outer ring 1 can be disassembled by rotating the inner ring adjusting disk 8 or the outer ring adjusting disk 7 in the opposite direction. The overall operation is simple and quick. The bearing can be disassembled and assembled using a single screwdriver to avoid damage to the frame.

[0027] Example 2

[0028] Reference Figure 1-4 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment. Specifically, the outer side wall of the outer ring 1 is respectively concavely provided with a plurality of embedding grooves 12, the depth of the embedding grooves 12 is consistent with the thickness of the outer top plate 4, and the embedding grooves 12 accommodate the outer top plate 4, thereby ensuring the integrity and smoothness of the outer ring of the outer ring 1.

[0029] Specifically, the inner side walls of the inner ring 3 are respectively provided with a plurality of embedding openings 32 , the structure of the embedding openings 32 is consistent with the structure of the inner top plate 10 , and the embedding openings 32 receive the inner top plate 10 , thereby ensuring the integrity and smoothness of the inner circle of the inner ring 3 .

[0030] Specifically, the outer top plate 4 and the inner top plate 10 are both arc-shaped plates, the outer side of the outer top plate 4 is provided with an outer anti-slip pattern 41, and the inner side of the inner top plate 10 is provided with an inner anti-slip pattern 101. The setting of the inner anti-slip pattern 101 and the outer anti-slip pattern 41 improves the friction of the contact surface when the inner top plate 10 and the outer top plate 4 are installed.

[0031] Specifically, the outer ring adjustment assembly 9 includes a rotating ring 91, an inner gear ring 92, an end gear ring 93, a threaded barrel 94, and a driven gear 95. The rotating ring 91 is rotatably installed in the annular cavity 13. The rotating ring 91 is fixedly sleeved with the inner gear ring 92. One end face of the rotating ring 91 is fixedly connected to the end gear ring 93. The end gear ring 93 is meshingly connected to the driven gear 95. The driven gear 95 is fixedly sleeved with one side of the threaded barrel 94. The two ends of the threaded barrel 94 are rotatably connected to the inner walls of the annular cavity 13 on both sides.

[0032] Furthermore, the inner gear ring 2 92 is meshedly connected with a driving gear 1 72, and the driving gear 1 72 is fixedly sleeved on a rotating shaft 1 71. Both sides of the rotating shaft 71 are rotatably connected to the outer ring 1, and both ends of the rotating shaft 71 are fixedly connected to the outer ring adjustment disk 7. The outer ring adjustment disk 7 is rotatably arranged in the outer ring groove 11, and the outer ring groove 11 is concavely arranged on the outer walls of both sides of the outer ring 1.

[0033] A cross groove is provided on the outer end surface of the outer ring adjusting disk 7. A screwdriver cooperates with the cross groove of the outer ring adjusting disk 7 to drive the outer ring adjusting disk 7 to rotate. The rotation of the outer ring adjusting disk 7 drives the fixed rotating shaft 1 71 to rotate. The rotating shaft 1 71 drives the fixed driving gear 1 72 to rotate. The driving gear 1 72 drives the meshing inner gear ring 2 92 to rotate in a circle. The inner gear ring 2 92 drives the fixed rotating ring 2 91 to rotate in a circle. The rotating ring 2 91 drives the fixed end face gear ring 2 93 to rotate in a circle. The end face gear ring 2 93 drives the meshing driven gear 2 95 to rotate. The driven gear 2 95 drives the fixed threaded cylinder 2 94 to rotate. The threaded cylinder 2 94 cooperates with the internal thread structure to drive the clamped threaded rod 1 5 to extend. The threaded rod 1 5 drives the outer top plate 4 fixed at the end to extend. The outer top plate 4 abuts against the frame shaft cylinder, thereby fixing the outer ring 1.

[0034] Furthermore, the outer ring adjustment disk 7 and the rotating shaft 71 are coaxially arranged, the axis of the outer ring adjustment disk 7 and the axis of the outer ring 1 are parallel to each other, the axis of the threaded rod 5 and the axis of the outer ring 1 are perpendicular to each other, and limiting grooves are respectively provided on the outer walls on both sides of the threaded rod 5. A limiting slider is fixedly installed at the sliding sleeve joint between the outer ring 1 and the threaded rod 5, and the limiting slider is slidably matched with the limiting groove. The threaded rod 5 realizes a linear movement under the rotation of the threaded barrel 94, thereby driving the outer top plate 4 fixed to the end of the threaded rod 5 to extend from the embedding groove 12, thereby realizing the fixed installation of the outer ring 1.

[0035] Specifically, the inner ring adjustment assembly 6 includes a rotating ring 61, an inner gear ring 62, and a threaded barrel 63. The rotating ring 61 is rotatably installed in the annular cavity 33. The rotating ring 61 is fixedly sleeved with the inner gear ring 62. One end face of the rotating ring 61 is fixedly connected to the end face gear ring 1. The end face gear ring 1 is meshedly connected to the driven gear 1. The driven gear 1 is fixedly sleeved with one side of the threaded barrel 63. The two ends of the threaded barrel 63 are respectively rotatably connected to the inner walls of the two sides of the annular cavity 33.

[0036] Furthermore, the inner gear ring 1 62 is meshedly connected with the driving gear 2 82, and the driving gear 2 82 is fixedly sleeved on the rotating shaft 2 81. The two sides of the rotating shaft 81 are respectively rotatably connected to the inner ring 3, and the two ends of the rotating shaft 81 are respectively fixedly connected to the inner ring adjustment disk 8. The inner ring adjustment disk 8 is rotatably arranged in the inner ring groove 31, and the inner ring groove 31 is concavely arranged on the outer walls of both sides of the inner ring 3.

[0037] A cross slot is provided on the outer end surface of the inner ring adjusting disk 8. A screwdriver is used to cooperate with the cross slot to rotate the inner ring adjusting disk 8. The rotation of the inner ring adjusting disk 8 drives the fixed rotating shaft 2 81 to rotate. The rotating shaft 2 81 drives the fixed driving gear 2 82 to rotate. The driving gear 2 82 drives the meshing inner gear ring 1 62 to rotate in a circle. The inner gear ring 1 62 drives the fixed rotating ring 1 61 to rotate in a circle. The rotating ring 1 61 drives the fixed end face gear ring 1 to rotate. The end face gear ring 1 drives the meshing driven gear 1 to rotate. The driven gear 1 drives the fixed threaded cylinder 1 63 to rotate. The threaded cylinder 1 63 drives the threaded rod 2 102 to move linearly through the threaded structure. The threaded rod 2 102 drives the inner top plate 10 fixed at the end to extend. The inner top plate 10 then clamps the axle to fix the inner ring 3.

[0038] Furthermore, the inner ring adjustment disk 8 and the rotating shaft 81 are coaxially arranged, and the axis of the inner ring adjustment disk 8 is parallel to the axis of the inner ring 3, which is convenient for the user to use tools to rotate the inner ring adjustment disk 8 and avoids obstruction of the adjustment part of the inner ring adjustment disk 8 by the frame or axle during installation, thereby facilitating the disassembly and assembly of the bearing. The axis of the threaded rod 102 is perpendicular to the axis of the inner ring 3, so that when the threaded rod 102 moves in a straight line, it can smoothly drive the extension and retraction of the inner top plate 10.

[0039] Example 3

[0040] Reference Figure 1-4, which is the third embodiment of the present invention. This embodiment is based on the above two embodiments. When installed and used, the inner ring 3 is sleeved on the bicycle axle, and the outer ring 1 is sleeved in the frame shaft tube. The outer end surface of the inner ring adjustment disk 8 is provided with a cross groove. A screwdriver is used to match the cross groove to rotate the inner ring adjustment disk 8. The inner ring adjustment disk 8 rotates to drive the fixed rotating shaft 2 81 to rotate. The rotating shaft 2 81 drives the fixed driving gear 2 82 to rotate. The driving gear 2 82 drives the meshing inner gear ring 1 62 to rotate in a circle. The inner gear ring 1 62 drives The fixed rotating ring 61 rotates in a circle, the rotating ring 61 drives the fixed end face gear ring 1 to rotate, the end face gear ring 1 drives the meshing driven gear 1 to rotate, the driven gear 1 drives the fixed threaded cylinder 63 to rotate, the threaded cylinder 63 drives the threaded rod 2 102 to move linearly through the threaded structure, the threaded rod 2 102 drives the inner top plate 10 fixed at the end to extend, the inner top plate 10 then clamps the axle, and the inner ring 3 is fixedly installed, and the outer end surface of the outer ring adjustment disk 7 is also provided with a cross groove The screwdriver cooperates with the cross groove of the outer ring adjusting disk 7 to drive the outer ring adjusting disk 7 to rotate. The rotation of the outer ring adjusting disk 7 drives the fixed rotating shaft 1 71 to rotate. The rotating shaft 1 71 drives the fixed driving gear 1 72 to rotate. The driving gear 1 72 drives the meshing inner gear ring 2 92 to rotate in a circle. The inner gear ring 2 92 drives the fixed rotating ring 2 91 to rotate in a circle. The rotating ring 2 91 drives the fixed end face gear ring 2 93 to rotate in a circle. The end face gear ring 2 93 drives the meshing driven gear 2 95 to rotate. Gear 2 95 drives the fixed threaded tube 2 94 to rotate, and the threaded tube 2 94 cooperates with the internal thread structure to drive the clamped threaded rod 1 5 to extend, and the threaded rod 1 5 drives the outer top plate 4 fixed at the end to extend, and the outer top plate 4 abuts against the frame shaft tube, thereby fixing the outer ring 1. When disassembling, the inner ring 3 or the outer ring 1 can be disassembled by rotating the inner ring adjusting disk 8 or the outer ring adjusting disk 7 in the opposite direction respectively. The overall operation is simple and quick, and the bearing can be disassembled and assembled with a single screwdriver to avoid damage to the frame.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bicycle bearing structure that is easy to assemble and disassemble, comprising an outer ring (1), an inner ring (3), and a ball (2) located between the outer ring (1) and the inner ring (3), characterized in that: The outer ring (1) is hollowly provided with an annular cavity (13), an outer ring adjustment component (9) is movably provided in the annular cavity (13), the outer ring adjustment component (9) is connected to a plurality of threaded rods (5) respectively through a threaded structure, the threaded rods (5) are slidably engaged with the outer ring (1), one end of the threaded rods (5) is fixedly connected to an outer top plate (4), the outer top plates (4) are evenly distributed around the circumference and are movably arranged on the outside of the outer ring (1), the outer ring adjustment component (9) is transmission-connected to an outer ring adjustment disk (7), and the outer ring adjustment disk (7) is rotatably arranged on the outer ring (1); The inner ring (3) is hollowly provided with an annular cavity (33) inside, and an inner ring adjustment component (6) is movably provided inside the annular cavity (33). The inner ring adjustment component (6) is connected to a plurality of threaded rods (102) through a threaded structure, and the threaded rods (102) are slidably engaged with the inner ring (3). One end of the threaded rods (102) is fixedly connected to an inner top plate (10). The inner top plate (10) is evenly distributed around the circumference and movably arranged on the inner side of the inner ring (3). The inner ring adjustment component (6) is transmission-connected to an inner ring adjustment disk (8), and the inner ring adjustment disk (8) is rotatably arranged on the inner ring (3). The outer ring adjustment component (9) comprises a rotating ring (91), an inner gear ring (92), an end gear ring (93), a threaded barrel (94), and a driven gear (95). The rotating ring (91) is rotatably mounted in the annular cavity (13). The rotating ring (91) is fixedly sleeved with the inner gear ring (92). One end face of the rotating ring (91) is fixedly connected with the end gear ring (93). The end gear ring (93) is meshedly connected with the driven gear (95). The driven gear (95) is fixedly sleeved with one side of the threaded barrel (94). The two ends of the threaded barrel (94) are rotatably connected to the inner walls of the annular cavity (13) on both sides. The inner gear ring 2 (92) is meshedly connected with a driving gear 1 (72), the driving gear 1 (72) is fixedly sleeved on a rotating shaft 1 (71), the two sides of the rotating shaft 1 (71) are respectively rotatably connected to the outer ring (1), the two ends of the rotating shaft 1 (71) are respectively fixedly connected to an outer ring adjustment disk (7), the outer ring adjustment disk (7) is rotatably arranged in an outer ring groove (11), and the outer ring groove (11) is concavely arranged on the outer walls of both sides of the outer ring (1); The outer ring adjustment disk (7) and the rotating shaft (71) are coaxially arranged, the axis of the outer ring adjustment disk (7) and the axis of the outer ring (1) are arranged parallel to each other, and the axis of the threaded rod (5) and the axis of the outer ring (1) are arranged perpendicular to each other; The inner ring adjustment assembly (6) comprises a rotating ring (61), an inner gear ring (62), and a threaded barrel (63); the rotating ring (61) is rotatably mounted in the annular cavity (33); the rotating ring (61) is fixedly sleeved with the inner gear ring (62); one end face of the rotating ring (61) is fixedly connected to the end face gear ring (62); the end face gear ring (61) is meshedly connected to the driven gear (1); the driven gear (1) is fixedly sleeved with one side of the threaded barrel (63); and the two ends of the threaded barrel (63) are rotatably connected to the inner walls of the annular cavity (33) on both sides. The inner gear ring 1 (62) is meshedly connected with a driving gear 2 (82), the driving gear 2 (82) is fixedly sleeved with a rotating shaft 2 (81), the two sides of the rotating shaft 2 (81) are respectively rotatably connected to the inner ring (3), the two ends of the rotating shaft 2 (81) are respectively fixedly connected to the inner ring adjustment disk (8), the inner ring adjustment disk (8) is rotatably arranged in the inner ring groove (31), and the inner ring groove (31) is concavely arranged on the outer walls of both sides of the inner ring (3); The inner ring adjustment disk (8) and the second rotating shaft (81) are coaxially arranged, the axis of the inner ring adjustment disk (8) and the axis of the inner ring (3) are arranged parallel to each other, and the axis of the second threaded rod (102) and the axis of the inner ring (3) are arranged perpendicular to each other.

2. The bicycle bearing structure that is easy to disassemble and assemble according to claim 1, characterized in that: The outer side wall of the outer ring (1) is respectively provided with a plurality of embedding grooves (12) inwardly, and the depth of the embedding grooves (12) is consistent with the thickness of the outer top plate (4).

3. The bicycle bearing structure that is easy to disassemble and assemble according to claim 1, characterized in that: The inner side walls of the inner ring (3) are respectively provided with a plurality of embedding openings (32), and the structure of the embedding openings (32) is consistent with the structure of the inner top plate (10).

4. The bicycle bearing structure that is easy to disassemble and assemble according to claim 1, characterized in that: The outer top plate (4) and the inner top plate (10) are both arc-shaped plates; the outer side of the outer top plate (4) is provided with an outer anti-slip pattern (41), and the inner side of the inner top plate (10) is provided with an inner anti-slip pattern (101).

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