An adjustable size bicycle hub

Abstract

This utility model relates to the field of bicycle hub technology and discloses a size-adjustable bicycle hub, including: a hub shaft; a rolling bearing fixedly connected to the outer wall of the hub shaft; spoke discs fixedly connected to the concave surface of the rolling bearing; and an operating component fixedly connected between the two spoke discs. This size-adjustable bicycle hub allows for overall size adjustment by sliding an adjusting rod within an adjusting groove on the hub sub-shaft. The adjusting rod drives the hub main shaft to slide on the outer wall of the hub sub-shaft, thus enabling the bicycle hub to adapt to different frame sizes. A fixing rod inserted into a fixing groove ensures the stability of the hub size. Pulling the L-shaped rod disengages the fixing rod from the fixing groove, allowing for sliding adjustment of the adjusting rod. Simultaneously, the elasticity of the fixing spring ensures the fixing rod is tightly engaged in the fixing groove, preventing loosening. A clamp metal plate further secures the fixing rod, improving its stability.

Description

Technical Field

[0001] This utility model relates to the field of bicycle hub technology, specifically to a bicycle hub with adjustable size. Background Technology

[0002] The bicycle hub is the core component of a bicycle wheelset, connecting the rim to the frame and responsible for supporting wheel rotation and transmitting power. As a key component of the bicycle, the bicycle hub is located at the front and rear axles, playing a vital role in support and transmission. Its performance directly affects the bicycle's speed, gliding ability, and overall riding experience.

[0003] Different bicycle frames have different requirements for hub size. When the frame size changes, fixed-size hubs are often difficult to fit, requiring the replacement of the entire hub or modification of the frame. This not only increases cost and time but also reduces the bicycle's versatility and maintainability. Therefore, we offer an adjustable-size bicycle hub. Utility Model Content

[0004] The purpose of this invention is to provide a bicycle hub with an adjustable size to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable-size bicycle hub, comprising: a hub shaft; A rolling bearing fixedly connected to the outer wall of the hub shaft; A spoke disc fixedly connected to the concave surface of the rolling bearing; And an operating assembly fixedly connected between the two spoke discs; the operating assembly includes an adjustment part fixedly connected between the two spoke discs, the adjustment part being connected to a fixing part.

[0006] Preferably, the adjusting part includes a hub sub-shaft fixedly connected to the side of the spoke disc. The side of the hub sub-shaft has an adjusting groove, and an adjusting rod is inserted into the inner surface of the adjusting groove. The convex end face of the adjusting rod is fixedly connected to the hub main shaft. The top of the adjusting rod has a fixing groove. The outer wall of the hub sub-shaft has an adjusting groove, and the outer wall of the side end of the hub main shaft has a mounting groove.

[0007] Preferably, the fixing part includes a support block fixedly connected to the outer wall of the hub spindle. The top of the support block has a groove, and an L-shaped rod is inserted into the inner surface of the groove. A connecting block is fixedly connected to the bottom surface of the horizontal end of the L-shaped rod. A fixing rod is fixedly connected to the bottom of the connecting block. An installation block is fixedly connected to the inner side of the vertical end of the support block. A clamping metal piece is fixedly connected to the side of the installation block away from the support block. The inner surface of the clamping metal piece is engaged with the outer wall of the fixing rod. A fixing spring is fixedly connected to the top of the installation block. The end of the fixing spring away from the installation block is fixedly connected to the bottom surface of the horizontal end of the L-shaped rod.

[0008] Preferably, the diameter of the fixing groove is the same as the diameter of the adjusting groove and the diameter of the mounting groove, so that the fixing rod can smoothly pass through the mounting groove and the adjusting groove in sequence and be engaged in the fixing groove, reducing the difficulty of installation and adjustment.

[0009] Preferably, the two sides of the hub spindle are respectively in contact with the inner sides of the two spoke discs, which facilitates the sliding of the hub spindle on the outer wall of the hub sub-shaft, thereby adjusting the size of the hub.

[0010] Preferably, the outer surface of the vertical end of the L-shaped rod and the inner surface of the groove of the support block are configured to slide into each other, so that the L-shaped rod can slide flexibly in the groove of the support block, thereby controlling the engagement and disengagement of the fixing rod and the fixing groove.

[0011] Preferably, the bottom end of the fixing rod moves through the inner surface of the mounting groove and the second adjusting groove in sequence, and is engaged with the inner surface of the fixing groove. This effectively prevents the adjusting rod from sliding in the adjusting groove of the hub sub-shaft, stabilizes the adjusting rod in the set position, and keeps the hub size stable during use.

[0012] Compared with the prior art, this utility model provides a bicycle hub with adjustable size, which has the following advantages: This adjustable bicycle hub allows the adjusting rod to slide within an adjusting groove on the side of the hub's sub-shaft, changing the spacing between the sub-shafts. Simultaneously, the adjusting rod drives the hub's main shaft to slide along the outer walls of the two sub-shafts, thus achieving overall hub size adjustment. This allows the bicycle hub to adapt to different frame sizes or user needs, improving product compatibility.

[0013] This adjustable bicycle hub, once the hub size is adjusted, has a retaining rod inserted into a retaining groove at the top of the adjusting rod to prevent slippage during use, ensuring the stability of the hub size and improving the safety and reliability of the bicycle. By pulling up the L-shaped rod, the retaining spring is compressed, causing the retaining rod to disengage from the retaining groove, allowing for further sliding adjustment of the adjusting rod. Simultaneously, the elastic force of the retaining spring provides continuous elastic pressure to the retaining rod, ensuring it is tightly engaged in the retaining groove and preventing loosening. A clamp metal plate secures the retaining rod to the outer wall, providing cushioning and protection, and further enhancing the stability of the retaining rod. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the inner shaft structure of the hub of this utility model; Figure 4 This is a schematic diagram of the adjustment part of this utility model; Figure 5 This is a schematic diagram of the fixing part structure of this utility model; Figure 6 This utility model Figure 5 A magnified structural diagram of A in the middle.

[0015] In the diagram: 1. Hub shaft; 2. Rolling bearing; 3. Spoke disc; 5. Operating assembly; 5. Adjusting rod; 511. Hub sub-shaft; 512. Adjusting groove one; 513. Fixing groove; 514. Adjusting groove two; 515. Mounting groove; 516. Hub main shaft; 517. Fixing part; 52. Support block; 521. L-shaped rod; 522. Mounting block; 523. Fixing spring; 524. Connecting block; 525. Fixing rod; 526. Clamp metal plate; 527. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] Example 1: The adjustable bicycle hub provided by this utility model, such as... Figures 1 to 6 As shown: A size-adjustable bicycle hub, comprising: hub shaft 1; A rolling bearing 2 is fixedly connected to the outer wall of the hub shaft 1; Spoke disc 3 is fixedly connected to the concave surface of rolling bearing 2; And an operating component 5 fixedly connected between the two spoke discs 3; the operating component 5 includes an adjustment part 51 fixedly connected between the two spoke discs 3, and the adjustment part 51 is connected to a fixing part 52.

[0019] The adjustment unit 51 includes a hub sub-shaft 512 fixedly connected to the side of the spoke disc 3. An adjustment groove 513 is provided on the side of the hub sub-shaft 512. An adjustment rod 511 is inserted into the inner surface of the adjustment groove 513. A hub main shaft 517 is fixedly connected to the convex end face of the adjustment rod 511. A fixing groove 514 is provided on the top of the adjustment rod 511. An adjustment groove 515 is provided on the outer wall of the hub sub-shaft 512. An installation groove 516 is provided on the outer wall of the side end of the hub main shaft 517.

[0020] In this embodiment, the diameter of the fixing groove 514 is the same as the diameter of the adjusting groove 515 and the diameter of the mounting groove 516, so that the fixing rod 526 can smoothly pass through the mounting groove 516 and the adjusting groove 515 in sequence and be engaged in the fixing groove 514, which reduces the difficulty of installation and adjustment.

[0021] Furthermore, the two sides of the hub spindle 517 are respectively in contact with the inner sides of the two spoke discs 3, which facilitates the sliding of the hub spindle 517 on the outer wall of the hub sub-shaft 512, thereby adjusting the size of the hub.

[0022] Furthermore, the inner surface of the hub main shaft 517 is configured to slide and be sleeved with the outer walls of the two hub sub-shafts 512 respectively.

[0023] Example 2: Based on Example 1, the present invention provides a size-adjustable bicycle hub, such as... Figures 1 to 6As shown: The fixing part 52 includes a support block 521 fixedly connected to the outer wall of the hub spindle 517. The top of the support block 521 has a groove, and an L-shaped rod 522 is inserted into the inner surface of the groove. A connecting block 525 is fixedly connected to the bottom surface of the horizontal end of the L-shaped rod 522. A fixing rod 526 is fixedly connected to the bottom of the connecting block 525. An installation block 523 is fixedly connected to the inner side of the vertical end of the support block 521. A clamp metal piece 527 is fixedly connected to the side of the installation block 523 away from the support block 521. The inner surface of the clamp metal piece 527 is clamped to the outer wall of the fixing rod 526. A fixing spring 524 is fixedly connected to the top of the installation block 523. The end of the fixing spring 524 away from the installation block 523 is fixedly connected to the bottom surface of the horizontal end of the L-shaped rod 522.

[0024] In this embodiment, the outer surface of the vertical end of the L-shaped rod 522 and the inner surface of the groove of the support block 521 are configured to slide into each other, so that the L-shaped rod 522 can slide flexibly in the groove of the support block 521, thereby controlling the engagement and disengagement of the fixing rod 526 and the fixing groove 514.

[0025] Furthermore, the bottom end of the fixing rod 526 moves through the inner surfaces of the mounting groove 516 and the second adjustment groove 515 in sequence, and is engaged with the inner surface of the fixing groove 514. This effectively prevents the adjusting rod 511 from sliding in the second adjustment groove 515 of the hub subshaft 512, and stabilizes the adjusting rod 512 in the set position, so that the hub size remains stable during use.

[0026] In actual operation, when this device is used, the adjusting rod 511 can slide in the adjusting groove 513 on the side of the hub sub-shaft 512, which can change the distance between the hub sub-shafts 512. At the same time, the adjusting rod 511 drives the hub main shaft 517 to slide on the outer wall of the two hub sub-shafts 512, thereby realizing the adjustment of the overall size of the hub. This allows the bicycle hub to adapt to different frame sizes or user needs, improving the product's adaptability.

[0027] After adjusting the hub size, the fixing rod 526 is inserted into the fixing groove 514 at the top of the adjusting rod 511 to prevent the adjusting rod 511 from slipping during use, ensuring the stability of the hub size and improving the safety and reliability of the bicycle. By pulling up the L-shaped rod 522, the fixing spring 524 is compressed, causing the fixing rod 526 to disengage from the fixing groove 514, allowing the adjusting rod 511 to be slidably adjusted again. At the same time, the elastic force of the fixing spring 524 provides continuous elastic pressure to the fixing rod 526, ensuring that the fixing rod 526 can be tightly engaged in the fixing groove 514 to prevent loosening. The clamp metal piece 527 is engaged with the outer wall of the fixing rod 526, providing a certain buffering and protection function, as well as improving the stability of the fixing rod 526.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A size-adjustable bicycle hub, comprising: Hub shaft (1); A rolling bearing (2) is fixedly connected to the outer wall of the hub shaft (1); The spoke disc (3) is fixedly connected to the concave surface of the rolling bearing (2); And an operating component (5) fixedly connected between the two spoke discs (3); characterized in that: the operating component (5) includes an adjustment part (51) fixedly connected between the two spoke discs (3), the adjustment part (51) being connected to a fixing part (52).

2. The adjustable bicycle hub according to claim 1, characterized in that: The adjustment part (51) includes a hub sub-shaft (512) fixedly connected to the side of the spoke disc (3). An adjustment groove (513) is provided on the side of the hub sub-shaft (512). An adjustment rod (511) is inserted into the inner surface of the adjustment groove (513). A hub main shaft (517) is fixedly connected to the convex end face of the adjustment rod (511). A fixing groove (514) is provided on the top of the adjustment rod (511). An adjustment groove (515) is provided on the outer wall of the hub sub-shaft (512). An installation groove (516) is provided on the outer wall of the side end of the hub main shaft (517).

3. The adjustable bicycle hub according to claim 1, characterized in that: The fixing part (52) includes a support block (521) fixedly connected to the outer wall of the hub spindle (517). The top of the support block (521) is provided with a groove, and an L-shaped rod (522) is inserted into the inner surface of the groove. A connecting block (525) is fixedly connected to the bottom surface of the horizontal end of the L-shaped rod (522). A fixing rod (526) is fixedly connected to the bottom of the connecting block (525). An installation block (523) is fixedly connected to the inner side of the vertical end of the support block (521). A clamp metal piece (527) is fixedly connected to the side of the installation block (523) away from the support block (521). The inner surface of the clamp metal piece (527) is clamped to the outer wall of the fixing rod (526). A fixing spring (524) is fixedly connected to the top of the installation block (523). The end of the fixing spring (524) away from the installation block (523) is fixedly connected to the bottom surface of the horizontal end of the L-shaped rod (522).

4. The adjustable-size bicycle hub according to claim 2, characterized in that: The aperture of the fixed groove (514) is the same as that of the adjusting groove (515) and the mounting groove (516).

5. The adjustable bicycle hub according to claim 2, characterized in that: The two sides of the hub spindle (517) are respectively in contact with the inner sides of the two spoke discs (3).

6. The size-adjustable bicycle hub according to claim 3, characterized in that: The outer surface of the vertical end of the L-shaped rod (522) is slidably connected to the inner surface of the groove of the support block (521).

7. The adjustable bicycle hub according to claim 3, characterized in that: The bottom end of the fixing rod (526) moves through the inner surfaces of the mounting groove (516) and the adjustment groove (515) in sequence, and is engaged with the inner surface of the fixing groove (514).

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