Spoke, connecting structure of spoke and hub and wheel

Abstract

The utility model relates to a spoke which comprises a spoke body, the end, close to a hub, of the spoke body extends towards the two sides to form two first installation parts, and the first installation parts are used for being connected with the hub. The utility model further discloses a connecting structure of the spokes and the hub and a wheel applying the connecting structure. According to the design that one end of the spoke body extends towards the two sides to form the two first installation parts, stress borne by the hub can be dispersed more effectively, the stress is prevented from being concentrated at a certain point or a certain area, and therefore the fatigue damage risk caused by stress concentration is reduced. And meanwhile, due to the design of the two first mounting parts, relative movement of the spokes and the spoke disc is reduced, and friction is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to a spoke, a connection structure between the spoke and a hub, and a wheel. Background Art

[0002] A bicycle, also known as a cycle or bicycle, is a small, two-wheeled land vehicle. Riders pedal and are a green and environmentally friendly means of transportation.

[0003] Bicycle spokes are a key component of bicycle wheels, connecting the hub and rim and playing a crucial role in securing and supporting the rim. Traditional bicycle spokes have an elbow at one end connected to the hub, which is fitted with a spoke nipple. The elbow is inserted through the spoke hole in the hub, with the nipple resting against the hole, completing the connection. For example, Chinese Patent Publication No. CN218140855U discloses a spiral, bend-resistant bicycle spoke that connects to the hub in the same manner as traditional bicycle spokes.

[0004] However, the pressure concentration at the contact point between traditional spokes and hubs can easily cause local damage to the spokes and hubs. At the same time, the pressure concentration can easily accelerate the wear of the contact surface, affecting the service life of the spokes and hubs. Summary of the Invention

[0005] The purpose of the utility model is to provide a spoke, a connection structure between the spoke and the hub, and a wheel, so as to solve the problem that pressure concentration at the contact point between the spoke and the hub easily causes local damage to the spoke and the hub.

[0006] To achieve the above-mentioned purpose, the present invention discloses a spoke, comprising: a spoke body, wherein one end of the spoke body close to the hub extends to both sides to form two first mounting portions, and the first mounting portions are used to connect to the hub.

[0007] Preferably, the first mounting portion forms a Y-shape when combined with the spoke body. A first transition surface is provided at the connection between the first mounting portion and the spoke body, a second transition surface is provided between the two first mounting portions, and a third transition surface is provided on the side of the first mounting portion closest to the hub. The first, second, and third transition surfaces are all curved surfaces. The spoke body and the first mounting portion are both made of carbon fiber. Both the spoke body and the first mounting portion are flat.

[0008] Preferably, the first mounting portions adjacently mounted on the hub are connected to each other and formed integrally.

[0009] A spoke-hub connection structure includes the spokes and the hub. The hub includes a hub shell body and a spoke disc. The spoke disc is detachably mounted on the hub shell body and is used to mount the spokes. The spoke disc includes a disc body and a connecting sleeve. The connecting sleeve is used to connect to the hub shell body. The sleeve is disposed in the middle of the disc body. The disc body is provided with a first mounting groove. The first mounting portion and a portion of the spoke body are embedded in the first mounting groove.

[0010] Preferably, the disc body is inclined toward an end of the connecting sleeve away from the first mounting groove.

[0011] Preferably, the disc body and the connecting sleeve are integrally formed and are both made of carbon fiber material.

[0012] Preferably, the thickness of the disc body is 0.4-0.8 mm.

[0013] Preferably, a structural groove is provided on the periphery of the disk body along the outline of the first mounting groove.

[0014] Preferably, it further comprises a cover plate, a mounting hole is provided in the middle of the cover plate, a second mounting groove for mounting the spokes is provided on the cover plate, and the cover plate is fixedly connected to the spoke disc.

[0015] A wheel comprises a rim and the spoke and hub connection structure, wherein one end of the spoke body away from the first mounting portion is fixedly connected to the rim.

[0016] The utility model has the following beneficial effects:

[0017] The design of two first mounting portions, formed by extending one end of the spoke body to both sides, effectively disperses stress on the hub, preventing stress concentration at a single point or area, thereby reducing the risk of fatigue damage caused by stress concentration. Furthermore, the two first mounting portions minimize relative movement between the spoke and spoke disc, reducing friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a wheel structure provided in a specific embodiment of the present utility model;

[0019] Figure 2 This is a partial enlarged schematic diagram of point A provided in a specific embodiment of the utility model;

[0020] Figure 3 This is an exploded schematic diagram of the spokes and hub provided in a specific embodiment of the present utility model;

[0021] Figure 4 This is a schematic structural diagram of the spokes provided in a specific embodiment of the present utility model;

[0022] Figure 5 This is a partial enlarged schematic diagram of point B provided in a specific embodiment of the present utility model;

[0023] Figure 6 This is a three-dimensional schematic diagram of a spoke disc provided in a specific embodiment of the present utility model;

[0024] Figure 7 A side view schematic diagram of a spoke disc provided in a specific embodiment of the present utility model;

[0025] Figure 8 This is a three-dimensional schematic diagram of a cover plate provided in a specific embodiment of the present utility model;

[0026] Figure 9 This is an exploded schematic diagram of the spokes and hub provided in a specific embodiment of the present utility model;

[0027] Figure 10 This is a schematic diagram of the installation of spokes and a hub provided in a specific embodiment of the present utility model.

[0028] Description of main components symbols:

[0029] 100. Spoke body; 110. First mounting portion; 111. First transition surface; 112. Second transition surface; 113. Third transition surface; 200. Spoke disc; 210. Disc body; 220. Connecting sleeve; 230. First mounting groove; 240. Structural groove; 300. Cover plate; 310. Second mounting groove; 400. Hub shell body; 500. Rim. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0031] Example 1

[0032] like Figures 1 to 8 As shown, the present invention discloses a spoke, comprising: a spoke body 100, wherein one end of the spoke body 100 close to the hub extends to both sides to form two first mounting portions 110, and the first mounting portions 110 are used to connect to the hub.

[0033] In this embodiment, the first mounting portion 110 forms a Y-shape when combined with the spoke body 100. The spoke body 100 is Y-shaped on the side closest to the hub. This Y-shaped spoke design effectively disperses stress on the hub, preventing stress concentration at a single point or area, thereby reducing the risk of fatigue damage caused by stress concentration. Furthermore, the Y-shaped structure provides stronger physical support, making the hub more stable under load and reducing wear between the spokes and the hub, thereby improving the durability and service life of the entire wheel.

[0034] A first transition surface 111 is provided at the connection between the first mounting portion 110 and the spoke body 100 , a second transition surface 112 is provided between the two first mounting portions 110 , and a third transition surface 113 is provided on a side of the first mounting portion 110 close to the hub.

[0035] In this embodiment, the first transition surface 111 is a curved surface, provided at the junction of the first mounting portion 110 and the spoke body 100. This smooth curved transition prevents stress concentration. The second transition surface 112 is a curved surface, provided at the junction of the two mounting portions. This smooth curved transition prevents stress concentration. The third transition surface 113 is also a curved surface. This curved surface between the first mounting portion 110 and the hub increases the contact area between the two, effectively dispersing stress.

[0036] The spoke body 100 and the first mounting portion 110 are both made of carbon fiber. In this embodiment, the carbon fiber spokes are lighter in weight and have better rigidity than traditional metal spokes.

[0037] Both the spoke body 100 and the first mounting portion 110 are flat. In this embodiment, the flattened carbon fiber spoke design helps reduce wind resistance and enhance the wheel's aerodynamic performance. At high speeds, the flattened spokes more effectively guide airflow, reducing air resistance and thus improving riding speed and efficiency.

[0038] A spoke-hub connection structure includes spokes and a hub. The hub includes a hub shell body 400 and a spoke disc 200. The spoke disc 200 is detachably mounted on the hub shell body 400 and is used to mount the spokes. The spoke disc 200 includes a disc body 210 and a connecting sleeve 220. The connecting sleeve 220 is used to connect to the hub shell body 400. The sleeve is disposed in the middle of the disc body 210. The disc body 210 defines a first mounting groove 230. The first mounting portion 110 and a portion of the spoke body 100 are embedded in the first mounting groove 230.

[0039] In this embodiment, the first mounting groove 230 is Y-shaped, similar to the spokes. The Y-shaped design can effectively disperse the stress from the spokes. After the spokes are installed in the first mounting groove 230, they can be well fixed.

[0040] The spoke plate 200 is integrally formed with the connecting sleeve 220. Both the spoke plate 210 and the connecting sleeve 220 are made of carbon fiber. In this embodiment, the spoke plate 200 is integrally formed, eliminating potential weak points at the interface. The structural continuity allows it to withstand higher loads and pressures, enhancing the overall strength of the spoke plate 200.

[0041] like Figure 7 As shown, the disc body 210 is tilted toward the end of the connecting sleeve 220 that is away from the first mounting groove 230. In this embodiment, during actual installation, the spoke disc 200 is located on one side of the rim 500. After the spokes connect to the rim 500 and the spoke disc 200, they are tilted, rather than perpendicular to the ground. The tilted disc body 210 guides the spokes.

[0042] A structural groove 240 is defined along the periphery of the disc body 210, along the contour of the first mounting groove 230. In this embodiment, the provision of the structural groove 240 reduces the weight of the disc body 210 without compromising its functionality or strength. In the aforementioned embodiment, to control the weight of the spoke disc 200, the thickness of the disc body 210 is controlled between 0.4 and 0.8 mm.

[0043] The cover plate 300 has a mounting hole in the middle and a second mounting slot 310 for mounting the spokes. The cover plate 300 is fixedly connected to the spoke disc 200. In this embodiment, the edge of the cover plate 300 is tilted toward the side where the second mounting slot 310 is located, allowing the cover plate 300 to fit snugly against the disc body 210 during installation. When installing the cover plate 300, align the first mounting slot 230 with the second mounting slot 310, fit the cover plate 300 against the disc body 210, and then glue the cover plate 300 and disc body 210 together.

[0044] A wheel includes a rim 500 and a spoke-hub connection structure, wherein one end of a spoke body 100 away from a first mounting portion 110 is fixedly connected to the rim 500 .

[0045] like Figure 9 As shown, this embodiment adopts a structure in which the carbon fiber spoke disc 200 and the hub shell body 400 are separated. The carbon fiber spoke disc 200 and the hub shell body 400 are connected by a polygonal connecting sleeve on the carbon fiber spoke disc 200 and fixed to the hub shell body 400 with glue. Figure 10 The conventional spoke disc 200 and the hub shell body 400 are connected in one piece.

[0046] The spokes of this embodiment are made of carbon fiber, which is 5-10 times stronger than steel, has high tensile strength, and is less prone to deformation. When the spokes of this embodiment are pulled, the force on the hub of this embodiment is less than that on a traditional one-piece hub, making it less prone to deformation.

[0047] Example 2

[0048] like Figures 9-10 As shown, the main difference between this embodiment and the first embodiment is that the adjacent first mounting portions 110 mounted on the hub are interconnected and integrally formed. In this embodiment, the first mounting portions 110 of the seven integrally formed spoke bodies 100 are arranged in a circle to form a single-piece spoke. Force acting on the spokes is transmitted and dispersed through the first mounting portions 110.

[0049] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A spoke, characterized in that: include: A spoke body (100) is provided, wherein one end of the spoke body (100) close to the hub extends toward both sides to form two first mounting portions (110), and the first mounting portions (110) are used for connecting to the hub.

2. A spoke according to claim 1, characterized in that: The first mounting portion (110) forms a Y-shape after being combined with the spoke body (100); A first transition surface (111) is provided at the connection between the first mounting portion (110) and the spoke body (100), a second transition surface (112) is provided between the two first mounting portions (110), and a third transition surface (113) is provided on a side of the first mounting portion (110) close to the hub; The first transition surface (111), the second transition surface (112), and the third transition surface (113) are all curved surfaces; The spoke body (100) and the first mounting portion (110) are both made of carbon fiber; and the spoke body (100) and the first mounting portion (110) are both flat.

3. A spoke according to claim 2, characterized in that: The first mounting portions (110) adjacently mounted on the hub are connected to each other and formed integrally.

4. A spoke-hub connection structure, characterized in that: Comprising the spoke and hub according to any one of claims 1 to 3; The hub comprises a hub shell body (400) and a spoke disc (200), wherein the spoke disc (200) is detachably mounted on the hub shell body (400), and the spoke disc (200) is used for mounting spokes; The spoke disc (200) comprises a disc body (210) and a connecting sleeve (220), wherein the connecting sleeve (220) is used to connect to the hub shell body (400), and the sleeve is passed through the middle of the disc body (210). The disc body (210) is provided with a first mounting groove (230), and the first mounting portion (110) and a part of the spoke body (100) are embedded in the first mounting groove (230).

5. The spoke-hub connection structure according to claim 4, characterized in that: The disc body (210) is inclined toward an end of the connecting sleeve (220) away from the first installation groove (230).

6. The spoke-hub connection structure according to claim 5, characterized in that: The disc body (210) and the connecting sleeve (220) are integrally formed; The disc body (210) and the connecting sleeve (220) are both made of carbon fiber material.

7. The spoke-hub connection structure according to claim 6, characterized in that: The thickness of the disc body (210) is 0.4-0.8 mm.

8. The spoke-hub connection structure according to claim 7, characterized in that: A structural groove (240) is provided on the periphery of the disc body (210) along the outline of the first installation groove (230).

9. The spoke-hub connection structure according to claim 8, characterized in that: It also includes a cover plate (300), a mounting hole is provided in the middle of the cover plate (300), a second mounting groove (310) for mounting spokes is provided on the cover plate (300), and the cover plate (300) is fixedly connected to the spoke disc (200).

10. A wheel, characterized in that: include: A wheel rim (500) and a spoke and hub connection structure according to any one of claims 4 to 9, wherein an end of the spoke body (100) away from the first mounting portion (110) is fixedly connected to the wheel rim (500).

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