Multifunctional hub compatible with card type flywheel, rotary flying type flywheel and single-stage flywheel

Abstract

The utility model relates to the technical field of flywheel hubs, in particular to a multifunctional hub compatible with a clamping type flywheel, a rotary flying type flywheel and a single-stage flywheel, which comprises a shaft core, a hub shell is sleeved on the shaft core, and two ends of the hub shell are limited by shaft stop nuts. A groove is formed in one end of the hub shell, a ratchet wheel is installed in the groove through an inner bearing, a tower footing is installed in the ratchet wheel in an inserted mode, the tower footing and a shaft core are installed in a matched mode through a tower footing bearing, and three pawl grooves forming a group are evenly formed in one end of the tower footing. The three pawl grooves in the other group and the three pawl grooves in the first group are distributed in a staggered manner; the flywheel hub has the advantages that by replacing the tower footing, the hub can be compatible with a clamping type flywheel, a rotary flying type flywheel and a single-stage flywheel, meanwhile, the spiral installation mode is matched, the difficult problem that multiple product functions are matched with one another to be achieved can be solved, cost is lower, the flywheel hub is more convenient to use and efficient, and meanwhile the hub can be conveniently disassembled and repaired in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of flywheel hubs, and specifically relates to a multi-functional hub that is compatible with cassette flywheels, freewheel flywheels, and single-stage flywheels. Background Technique

[0002] At present, the bicycle hubs on the market mainly include hubs for installing cassette flywheels, freewheel hubs for installing freewheel flywheels, and single-stage flywheel hubs. These hubs usually can only be compatible with one type of flywheel, which limits their application scope.

[0003] The present invention aims to design a multi-functional hub that can be compatible with cassette flywheels, freewheel flywheels, and single-stage flywheels by replacing the freehub body on the basis of the existing cassette hub shell. Content of the Utility Model

[0004] In view of the problems existing in the prior art, the utility model discloses a multi-functional hub that is compatible with cassette flywheels, freewheel flywheels, and single-stage flywheels. The technical solution adopted is as follows: it includes an axle core, a hub shell is sleeved on the axle core, and both ends of the hub shell are limited by axle retaining nuts. One end of the hub shell is provided with a groove, and a ratchet is installed in the groove through an inner bearing. A freehub body is inserted and installed inside the ratchet. The freehub body is installed in cooperation with the axle core through a freehub bearing. One end of the freehub body is evenly provided with three pawl grooves forming a group, and another group of three pawl grooves is staggered with the first group. Pawls are preset in the pawl grooves, and the bottom of the pawls is installed in cooperation with the pawl grooves through elastic pieces. The elastic pieces provide sufficient elastic pressure to ensure that the pawls always keep in contact with the ratchet teeth on the ratchet. A pawl anti-drop retaining ring is arranged between the pawls and the hub shell. The outer side wall of the other end of the freehub body is provided with external threads on the freehub body.

[0005] As a preferred technical solution of the utility model, the hub shell includes a hub shell disc mounting plate, hub shell side spoke holes, a hub shell, and hub shell opposite side spoke holes. The hub shell disc mounting plate is arranged at one end of the hub shell. Both ends of the hub shell are respectively provided with hub shell side spoke holes and hub shell opposite side spoke holes.

[0006] As a preferred technical solution of the utility model, a hex nut is arranged outside the hub shell bearing, and the hub shell bearing and the hex nut are connected by an axle retaining nut.

[0007] As a preferred technical solution of the utility model, a dust-proof ring is arranged at the connection between the freehub body and the ratchet.

[0008] As a preferred technical solution of the utility model, the freehub body is a freewheel freehub body.

[0009] As a preferred technical solution of the present utility model, the tower base is a single-fly tower base.

[0010] As a preferred technical solution of the present utility model, the tower base is a cartridge tower base.

[0011] The beneficial effects of the present utility model: By replacing the tower base, the present hub can be respectively compatible with a cassette freewheel, a screw-on freewheel and a single-stage freewheel. At the same time, with the spiral installation method, it can solve the difficult problems of the mutual matching of multiple product functions, with lower cost, more convenient and efficient, and it is also convenient for the later disassembly and repair of the hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 is the first three-dimensional view of the structure of the present utility model;

[0014] Figure 2 is the second three-dimensional view of the structure of the present utility model;

[0015] Figure 3 is the top view of the structure of the present utility model;

[0016] Figure 4 is the Figure 3 A-A cross-sectional structure schematic diagram of the present utility model;

[0017] Figure 5 is the exploded view of the structure of the present utility model;

[0018] Figure 6 is the schematic diagram of the ratchet structure of the present utility model;

[0019] Figure 7 is the schematic diagram of the cartridge tower base structure of the present utility model;

[0020] Figure 8 is the schematic diagram of the cartridge hub structure of the present utility model.

[0021] In the figure: 1 axle core, 2 hexagon nut, 3 axle retaining nut, 4 hub shell bearing, 5 hub shell for mounting disc, 6 spoke holes on the side of the hub shell, 7 hub shell, 8 spoke holes on the opposite side of the hub shell, 9 inner bearing, 10 ratchet, 11 dust-proof ring, 12 tower base bearing, 13 pawl anti-drop retaining ring, 14 pawl, 15 spring piece, 16 tower base, 17 upper thread of the tower base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0023] Embodiment 1

[0024] As Figures 1 to 8 shown, the present utility model discloses a multi-functional hub compatible with cassette freewheels, screw-on freewheels, and single-speed freewheels. The technical solution adopted is as follows: it includes an axle core 1, a hub shell is sleeved on the axle core 1, and its two ends are limited by axle retaining nuts 3. One end of the hub shell is provided with a groove, and a ratchet 10 is installed in the groove through an inner bearing 9. A freehub body 16 is inserted and installed inside the ratchet 10. The freehub body 16 is a screw-on freehub body. The freehub body 16 is installed in cooperation with the axle core 1 through a freehub bearing 12. One end of the freehub body 16 is evenly provided with three pawl grooves forming a group, and another group of three pawl grooves is staggered with the first group. Pawls 14 are preset in the pawl grooves, and the bottoms of the pawls 14 are installed in cooperation with the pawl grooves through elastic pieces 15. The elastic pieces 15 provide sufficient elastic pressure to ensure that the pawls 14 always keep in contact with the ratchet teeth on the ratchet 10. A pawl anti-drop retaining ring 13 is arranged between the pawls 14 and the hub shell. The outer side wall of the other end of the freehub body 16 is provided with a freehub upper thread 17. By matching the screw-on freehub body with the thread and combining and installing the hub and the freewheel in a spiral connection manner, the hub can be adapted to the screw-on freewheel.

[0025] As a preferred technical solution of the present utility model, the hub shell includes a hub shell disc mounting plate 5, hub shell side spoke holes 6, a hub shell 7, and hub shell opposite side spoke holes 8. The hub shell disc mounting plate 5 is arranged at one end of the hub shell 7, and the hub shell side spoke holes 6 and the hub shell opposite side spoke holes 8 are respectively opened at both ends of the hub shell 7.

[0026] As a preferred technical solution of the present utility model, a hexagon nut 2 is arranged outside the hub shell bearing 4, and the hub shell bearing 4 and the hexagon nut 2 are connected by an axle retaining nut 3. By connecting the hub shell bearing 4 and the hexagon nut 2 through the axle retaining nut 3, the position of the hub shell bearing 4 can be restricted to prevent it from shifting during movement.

[0027] As a preferred technical solution of the present utility model, a dust-proof ring 11 is arranged at the connection between the freehub body 16 and the ratchet 10. Through the dust-proof ring 11, external dust can be prevented from entering the interior of the hub shell through the connection between the freehub body 16 and the ratchet 10.

[0028] Embodiment 2

[0029] As shown in Figures 1 to 8 the figure, the utility model discloses a multi-functional hub compatible with cassette flywheels, freewheel flywheels and single-stage flywheels. The technical solution adopted is as follows: it includes an axle core 1, a hub shell is sleeved on the axle core 1, and both ends thereof are limited by axle retaining nuts 3. A groove is formed at one end of the hub shell, and a ratchet 10 is installed in the groove through an inner bearing 9. A freehub body 16 is inserted and installed inside the ratchet 10. The freehub body 16 is a single-speed freehub body. The freehub body 16 is installed in cooperation with the axle core 1 through a freehub bearing 12. Three pawl grooves forming a group are evenly arranged at one end of the freehub body 16, and another group of three pawl grooves are staggered with the first group. Pawls 14 are preset in the pawl grooves, and the bottoms of the pawls 14 are installed in cooperation with the pawl grooves through elastic pieces 15. The elastic pieces 15 provide sufficient elastic pressure to ensure that the pawls 14 always keep in contact with the ratchet teeth on the ratchet 10. A pawl anti-drop retaining ring 13 is arranged between the pawls 14 and the hub shell. An external thread of the freehub body 16 is arranged on the outer side wall at the other end of the freehub body 16. By matching the single-speed freehub body with a thread and combining and installing the hub and the flywheel in a spiral connection manner, the hub can be adapted to a single-stage flywheel.

[0030] As a preferred technical solution of the utility model, the hub shell includes a hub shell disc mounting plate 5, hub shell side spoke holes 6, a hub shell 7 and hub shell opposite side spoke holes 8. The hub shell disc mounting plate 5 is arranged at one end of the hub shell 7, and the hub shell side spoke holes 6 and the hub shell opposite side spoke holes 8 are respectively formed at both ends of the hub shell 7.

[0031] As a preferred technical solution of the utility model, a hexagon nut 2 is arranged outside the hub shell bearing 4, and the hub shell bearing 4 and the hexagon nut 2 are connected by an axle retaining nut 3. By connecting the hub shell bearing 4 and the hexagon nut 2 through the axle retaining nut 3, the position of the hub shell bearing 4 can be restricted to prevent it from shifting during movement.

[0032] As a preferred technical solution of the utility model, a dust-proof ring 11 is arranged at the connection between the freehub body 16 and the ratchet 10. Through the dust-proof ring 11, external dust can be prevented from entering the interior of the hub shell through the connection between the freehub body 16 and the ratchet 10.

[0033] Embodiment III

[0034] As shown in Figures 1 to 8As shown in the figure, the utility model discloses a multi-functional hub compatible with cassette freewheels, screw-on freewheels and single-speed freewheels. The technical solution adopted is as follows: it includes a spindle core 1, a hub shell is sleeved on the spindle core 1, and both ends thereof are limited by axle retaining nuts 3. One end of the hub shell is provided with a groove, and a ratchet 10 is installed in the groove through an inner bearing 9. A freehub body 16 is inserted into the interior of the ratchet 10. The freehub body 16 is a cassette freehub body. The freehub body 16 is installed in cooperation with the spindle core 1 through a freehub body bearing 12. One end of the freehub body 16 is evenly provided with three pawl grooves forming a group, and another group of three pawl grooves is staggered with the first group. Pawls 14 are preset in the pawl grooves, and the bottom of the pawls 14 is installed in cooperation with the pawl grooves through elastic pieces 15. The elastic pieces 15 provide sufficient elastic pressure to ensure that the pawls 14 always keep in contact with the ratchet teeth on the ratchet 10. A pawl anti-drop retaining ring 13 is arranged between the pawls 14 and the hub shell. The outer side wall of the other end of the freehub body 16 is provided with a freehub body upper thread 17. By matching the cassette freehub body with a thread and combining and installing the hub and the freewheel in a snap-fit connection manner, the hub can be adapted to the cassette freewheel.

[0035] As a preferred technical solution of the utility model, the hub shell includes a hub shell disc mounting plate 5, hub shell side spoke holes 6, a hub shell 7 and hub shell opposite side spoke holes 8. The hub shell disc mounting plate 5 is arranged at one end of the hub shell 7, and the hub shell side spoke holes 6 and the hub shell opposite side spoke holes 8 are respectively opened at both ends of the hub shell 7.

[0036] As a preferred technical solution of the utility model, a hexagon nut 2 is arranged outside the hub shell bearing 4, and the hub shell bearing 4 and the hexagon nut 2 are connected by an axle retaining nut 3. By connecting the hub shell bearing 4 and the hexagon nut 2 through the axle retaining nut 3, the position of the hub shell bearing 4 can be restricted to prevent it from shifting during movement.

[0037] As a preferred technical solution of the utility model, a dust-proof ring 11 is arranged at the connection between the freehub body 16 and the ratchet 10. Through the dust-proof ring 11, external dust can be prevented from entering the interior of the hub shell through the connection between the freehub body 16 and the ratchet 10.

[0038] The components not detailed in this text are prior art.

[0039] Although the specific embodiments of the utility model are described in detail above, the utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the utility model, and modifications or deformations that do not involve creative labor are still within the protection scope of the utility model.

Claims

1. A multifunctional hub compatible with a cassette flywheel, a rotary flywheel and a single-stage flywheel, comprising an axle core (1), characterized in that: The shaft core (1) is sleeved with a hub shell and its two ends are limited by shaft stop nuts (3). One end of the hub shell is provided with a groove and a ratchet (10) is installed in the groove via an inner bearing (9). A freehub (16) is inserted into the ratchet (10). The freehub (16) is installed in cooperation with the shaft core (1) via a freehub bearing (12). One end of the freehub (16) is evenly provided with ratchet grooves. A ratchet (14) is preset in the ratchet groove and the bottom of the ratchet (14) is installed in cooperation with the ratchet groove via a spring sheet (15). A ratchet anti-slip retaining ring (13) is provided between the ratchet (14) and the hub shell. The outer wall of the other end of the freehub (16) is provided with a freehub upper thread (17).

2. The multifunctional hub compatible with cassette flywheel, rotary flywheel and single-stage flywheel according to claim 1, characterized in that: The hub shell comprises a hub shell mounting disc (5), spoke holes (6) on the side of the hub shell, a hub shell (7) and spoke holes (8) on the opposite side of the hub shell. The hub shell mounting disc (5) is arranged at one end of the hub shell (7), and the spoke holes (6) on the side of the hub shell and the spoke holes (8) on the opposite side of the hub shell are respectively formed at two ends of the hub shell (7).

3. The multifunctional hub compatible with cassette flywheel, rotary flywheel and single-stage flywheel according to claim 1, characterized in that: A hexagonal nut (2) is arranged outside the hub shell bearing (4), and the hub shell bearing (4) and the hexagonal nut (2) are connected via a shaft stop nut (3).

4. The multifunctional hub compatible with cassette flywheel, rotary flywheel and single-stage flywheel according to claim 1, characterized in that: A dust ring (11) is provided at the connection between the tower base (16) and the ratchet wheel (10).

5. The multifunctional hub compatible with cassette flywheel, rotary flywheel and single-stage flywheel according to claim 1, characterized in that: The tower base (16) is a rotating tower base.

6. The multifunctional hub compatible with cassette flywheel, rotary flywheel and single-stage flywheel according to claim 1, characterized in that: The freehub (16) is a single-fly freehub.

7. The multifunctional hub compatible with cassette flywheel, rotary flywheel and single-stage flywheel according to claim 1, characterized in that: The tower base (16) is a cassette-type tower base.

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