A hub and spoke connection structure and a bicycle wheel

Abstract

This utility model discloses a hub-spoke connection structure. At least one end of the hub body has a plurality of spoke mounting holes circumferentially arranged. These holes communicate with the internal cavity of the hub body. The spokes extend outward from the internal cavity of the hub body and are engaged within the spoke mounting holes. This utility model also discloses a bicycle wheel, comprising a hub, a rim, and spokes. One end of the spokes is connected to the rim, and the other end is connected to the hub via the aforementioned hub-spoke connection structure. The spokes installed at both ends of the hub are staggered and interwoven. This utility model improves the connection method between the spokes and the hub to achieve rapid assembly and changes the way the spokes interweave to enhance the stability of the spoke-hub connection.

Description

Technical Field

[0001] This utility model relates to the field of bicycle component manufacturing and processing technology, specifically a hub and spoke connection structure and a bicycle wheel. Background Technology

[0002] The wheel is a crucial component of a bicycle system, primarily consisting of the rim, hub, spokes, and spoke nuts. The combination of the rim, hub, and spokes, as well as the spoke weaving method, collectively influences the bicycle's performance. The hub, in particular, is the core of the bicycle's drivetrain, transmitting driving force to the wheel and enabling its rotation.

[0003] Most existing hubs are bearing hubs, mainly composed of a shell and a bearing. The shell protects the bearing installed inside and also secures the bearing to the wheel, supporting the wheel and providing smooth movement. Currently, hubs are mostly made of aluminum alloy shells or use carbon fiber materials in parts of the aluminum alloy shell to reduce weight. However, existing spokes are mostly single, short spokes. Connecting the hub to the rim requires a large number of spokes, and the hub is subjected to tension from the spokes in multiple directions, making it prone to damage after prolonged use and difficult to replace. Utility Model Content

[0004] The purpose of this utility model is to provide a connection structure between the hub and spokes and a bicycle wheel, improving the connection method between the spokes and the hub to achieve rapid assembly, and changing the way the wheel spokes are inserted to improve the stability of the connection between the spokes and the hub. To achieve the above objectives, this utility model adopts the following technical solution:

[0005] This utility model discloses a connection structure between a hub and spokes, wherein the hub includes: a hub body, a bearing, a shaft, and an end cap.

[0006] The drum body has an internal cavity, and at least one end of the drum body has a plurality of spoke mounting holes circumferentially arranged, the spoke mounting holes being connected to the cavity.

[0007] The two ends of the shaft are rotatably mounted in the cavity via bearings.

[0008] The spokes include a spoke rod and a snap-fit ​​end located at the end of the spoke rod. The spoke rod passes outward from the cavity inside the hub body through the spoke mounting hole, so that the snap-fit ​​end snaps into the inside of the spoke mounting hole.

[0009] The end cap is installed at the end of the hub body, so that the snap-fit ​​end is confined within the cavity.

[0010] Furthermore, the hub body includes a shell and a metal cap, the metal cap being disposed at both ends of the shell.

[0011] Wherein, the diameter of one end of the housing is larger than the diameter of the middle part, and the spoke mounting hole arranged in the circumferential direction is the first spoke mounting hole, and the metal cover arranged here is the first metal cover. The first metal cover is provided with a fourth spoke mounting hole in the circumferential direction corresponding to the first spoke mounting hole. The spoke rod passes out from the cavity of the first metal cover in sequence through the fourth spoke mounting hole and the first spoke mounting hole, and the snap-fit ​​end is snapped into the inside of the fourth spoke mounting hole.

[0012] Preferably, the first spoke mounting hole and the fourth spoke mounting hole are in the shape of a circular main hole and a straight hole extending from one side of the circular main hole, wherein the width of the straight hole is smaller than the diameter of the circular main hole.

[0013] Furthermore, the housing has the first spoke mounting hole circumferentially provided at only one end, and the other end of the housing extends outward to form several blades, each of which has a second spoke mounting hole and a third spoke mounting hole.

[0014] The second and third spoke mounting holes are arranged opposite to each other. The spokes include two sets. The first set of spokes passes through the second spoke mounting hole and is installed by rotating clockwise. The second set of spokes passes through the third spoke mounting hole and is installed by rotating counterclockwise, so that the first set of spokes and the second set of spokes form a cross-woven structure.

[0015] Preferably, the metal cover installed on one end of the housing that extends outward and forms several blades is a second metal cover; the other end of the second metal cover that is connected to the housing extends outward to form a ring extension, the outer wall of the extension is provided with ratchet teeth, and the inner wall is provided with threads.

[0016] Preferably, the second spoke mounting hole and the third spoke mounting hole are in the shape of a circular main hole and straight holes extending from opposite sides of the circular main hole, wherein the width of the straight holes is smaller than the diameter of the circular main hole.

[0017] Preferably, the shell is made of carbon fiber material, the metal cover is made of metal material, and the metal cover is integrally formed with the shell. A groove is provided on the outer wall of one end of the metal cover, and the carbon fiber material on the inner sides of both ends of the shell covers the groove.

[0018] Furthermore, one end of the end cap extends into the housing and is connected to the shaft. The end of the end cap connected to the shaft has at least one annular groove on its outer wall, and a sealing ring is installed within the annular groove.

[0019] This utility model also discloses a bicycle wheel, including: a hub, a rim, and spokes, wherein the hub and spokes are connected by the hub-spoke connection structure described above.

[0020] One end of the spoke is connected to the rim, and the other end is fixed by snapping into the spoke mounting hole of the hub. The snapping end is in the form of a trapezoidal platform with arc-shaped sides, and the spokes installed at both ends of the hub are interlaced.

[0021] After adopting the above technical solution, the present invention has the following effects:

[0022] 1. This utility model improves the structure of bicycle hubs, enabling the spokes and hubs to be installed by plugging in, thus achieving rapid wheel assembly.

[0023] 2. This utility model alters the way the spokes are interlaced at both ends of the hub, reducing the number of spokes between the rim and the hub. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the flower drum of this utility model.

[0025] Figure 2 This is an exploded view of the hub of this utility model.

[0026] Figure 3 This is a three-dimensional structural diagram of the first metal cover and the second metal cover of this utility model.

[0027] Figure 4 This is a top view of the hub of this utility model.

[0028] Figure 5 for Figure 4 AA-direction cross-sectional view.

[0029] Figure 6 This is a three-dimensional structural diagram of the spoke end of this utility model.

[0030] Figure 7 This is a three-dimensional structural diagram of the spokes of this utility model protruding from the inside of the shell outwards.

[0031] Figure 8 This is a three-dimensional structural diagram of the spokes of this utility model being inserted into the second or third spoke mounting hole from the outside in.

[0032] Figure 9 This is a three-dimensional structural diagram of the wheel of this utility model.

[0033] Figure 10 for Figure 9 Enlarged view of point B.

[0034] Main component symbols:

[0035] 1: Hub, 11: Housing, 111: First spoke mounting hole, 112: Blade, 113: Second spoke mounting hole, 114: Third spoke mounting hole, 12: Axle, 13: First metal cap, 131: Fourth spoke mounting hole, 14: Second metal cap, 141: Extension, 142: Racket, 143: Thread, 15: End cap, 151: Annular groove, 16: Bearing, 17: Sealing ring, 18: Groove, 2: Rim, 3: Spoke, 31: Spoke rod, 32: Snap-fit ​​end. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] like Figure 1 and Figure 2 As shown, this utility model discloses a connection structure between a hub and spokes. The hub 1 includes: a hub body, a bearing 16, a shaft 12, and an end cap 15.

[0038] The hub body has an internal cavity, and at least one end of the hub body has several spoke mounting holes circumferentially connected to the cavity.

[0039] Combination Figure 4 and Figure 5 As shown, the two ends of the shaft 12 are rotatably mounted in the cavity via bearings 16.

[0040] Combination Figure 6 and Figure 7 As shown, the spoke 3 includes a spoke rod 31 and a snap-fit ​​end 32 located at the end of the spoke rod 31. The spoke rod 31 passes outward from the cavity inside the hub body through the spoke mounting hole, so that the snap-fit ​​end 32 snaps into the inside of the spoke mounting hole. The end cap 15 is installed at the end of the hub body, so that the snap-fit ​​end 32 is confined within the cavity.

[0041] In this embodiment, the hub body includes a housing 11 and a metal cap, which are respectively disposed at both ends of the housing 11. The diameter of one end of the housing 11 is larger than the diameter of the middle part, and the spoke mounting hole disposed circumferentially is the first spoke mounting hole 111. The metal cap disposed here is the first metal cap 13. The first metal cap 13 is provided with a fourth spoke mounting hole 131 corresponding to the first spoke mounting hole 111 in the circumferential direction. The spoke rod 31 passes out from the cavity of the first metal cap 13 through the fourth spoke mounting hole 131 and the first spoke mounting hole 111 in sequence, and the snap-fit ​​end 32 is snapped into the inside of the fourth spoke mounting hole 131.

[0042] Secondly, in this embodiment, the first spoke mounting hole 111 and the fourth spoke mounting hole 131 are shaped as a circular main hole and a straight hole extending from one side of the circular main hole. The width of the straight hole is smaller than the diameter of the circular main hole, so that the flat section in the middle of the spoke rod 31 can pass through.

[0043] Combination Figure 8 As shown, the housing 11 has a first spoke mounting hole 111 circumferentially provided at only one end, and the other end of the housing 11 extends outward to form a number of blades 112. Each blade 112 is provided with a second spoke mounting hole 113 and a third spoke mounting hole 114.

[0044] The second spoke mounting hole 113 and the third spoke mounting hole 114 are arranged opposite to each other. The spokes 3 include two sets. The first set of spokes 3 passes through the second spoke mounting hole 113 and is installed by rotating clockwise. The second set of spokes 3 passes through the third spoke mounting hole 114 and is installed by rotating counterclockwise, so that the two sets of spokes 3 form a cross-woven structure.

[0045] In this embodiment, the metal cover installed on one end of the housing 11 that extends outward and forms several blades is a second metal cover 14. The other end of the second metal cover 14 that is connected to the housing 11 extends outward to form a ring extension 141. The outer wall of the extension 141 is provided with ratchet teeth 142, and the inner wall is provided with threads 143.

[0046] Meanwhile, in this embodiment, the second spoke mounting hole 113 and the third spoke mounting hole 114 are in the shape of a circular main hole and straight holes extending from opposite sides of the circular main hole. The width of the straight holes is smaller than the diameter of the circular main hole, so that the flat section in the middle of the spoke rod 31 can pass through.

[0047] Furthermore, in this embodiment, the shell 11 is made of carbon fiber material, the metal cover is made of metal material, and the metal cover is integrally formed with the shell 11. A groove 18 is provided on the outer wall of one end of the metal cover, and the carbon fiber material on the inner sides of both ends of the shell 11 covers the groove 18. Figure 3 As shown.

[0048] One end of the end cap 15 extends into the housing 11 and is connected to the shaft 12. The end of the end cap 15 connected to the shaft 12 has at least one annular groove 151 on its outer wall, and a sealing ring 17 is installed in the annular groove 151.

[0049] like Figure 9 and Figure 10 As shown, this utility model also discloses a bicycle wheel, including: a hub 1, a rim 2 and spokes 3, wherein the hub 1 and spokes 3 are connected by the above-described hub-spoke connection structure.

[0050] One end of the spoke 3 is connected to the rim 2, and the other end is fixed in the spoke mounting hole of the hub 1 by snapping the end 32. The snapping end 32 is a trapezoidal platform structure with arc-shaped sides, and the spokes 3 installed at both ends of the hub 1 are interlaced.

[0051] The above description is only a preferred embodiment of the present utility model. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connection structure between a hub and spokes, characterized in that: The hub includes: a hub body, a bearing, a shaft, and an end cap; The hub body has an internal cavity, and at least one end of the hub body has a plurality of spoke mounting holes circumferentially arranged, the spoke mounting holes being connected to the cavity; The two ends of the shaft are rotatably mounted in the cavity via bearings; The spokes include: a spoke rod and a snap-fit ​​end located at the end of the spoke rod, wherein the spoke rod passes outward from the cavity inside the hub body through the spoke mounting hole, and the snap-fit ​​end snaps into the inside of the spoke mounting hole; The end cap is installed at the end of the hub body, so that the snap-fit ​​end is confined within the cavity.

2. The connection structure between the hub and spokes as described in claim 1, characterized in that: The main body of the hub includes a shell and a metal cover, with the metal cover respectively disposed at both ends of the shell.

3. The connection structure between the hub and spokes as described in claim 2, characterized in that: The diameter of one end of the housing is larger than the diameter of the middle part, and the spoke mounting hole arranged in the circumferential direction is the first spoke mounting hole. The metal cover arranged here is the first metal cover. The first metal cover is provided with a fourth spoke mounting hole in the circumferential direction corresponding to the first spoke mounting hole. The spoke rod passes out from the cavity of the first metal cover in sequence through the fourth spoke mounting hole and the first spoke mounting hole, and the snap-fit ​​end is snapped into the inside of the fourth spoke mounting hole.

4. The connection structure between the hub and spokes as described in claim 3, characterized in that: The first spoke mounting hole and the fourth spoke mounting hole are shaped as a circular main hole and a straight hole extending from one side of the circular main hole, wherein the width of the straight hole is smaller than the diameter of the circular main hole.

5. The connection structure between the hub and spokes as described in claim 3, characterized in that: The housing has the first spoke mounting hole circumferentially provided at only one end, and the other end of the housing extends outward to form a number of blades, each of which has a second spoke mounting hole and a third spoke mounting hole. The second and third spoke mounting holes are arranged opposite to each other. The spokes include two sets. The first set of spokes passes through the second spoke mounting hole and is installed by rotating clockwise. The second set of spokes passes through the third spoke mounting hole and is installed by rotating counterclockwise, so that the first set of spokes and the second set of spokes form a cross-woven structure.

6. The connection structure between the hub and spokes as described in claim 5, characterized in that: The metal cap installed on one end of the housing that extends outward and forms several blades is a second metal cap; the other end of the second metal cap that is connected to the housing extends outward to form a ring extension, the outer wall of the extension is provided with ratchet teeth, and the inner wall is provided with threads.

7. The connection structure between the hub and spokes as described in claim 5, characterized in that: The second and third spoke mounting holes are shaped as a circular main hole and straight holes extending from opposite sides of the circular main hole, wherein the width of the straight holes is smaller than the diameter of the circular main hole.

8. The connection structure between the hub and spokes as described in claim 2, characterized in that: The shell is made of carbon fiber material, the metal cover is made of metal material, and the metal cover is integrally formed with the shell. A groove is provided on the outer wall of one end of the metal cover, and the carbon fiber material on the inner side of both ends of the shell covers the groove.

9. The connection structure between the hub and spokes as described in claim 2, characterized in that: One end of the end cap extends into the housing and is connected to the shaft; The end cap connected to the shaft has at least one annular groove on its outer wall, and a sealing ring is installed in the annular groove.

10. A bicycle wheel, characterized in that, include: Hubs, rims, and spokes, wherein the hubs and spokes are connected by a hub-spoke connection structure as described in any one of claims 1-8; One end of the spoke is connected to the rim, and the other end is fixed by snapping into the spoke mounting hole of the hub. The snapping end is in the form of a trapezoidal platform with arc-shaped sides, and the spokes installed at both ends of the hub are interlaced.

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