Carbon fiber bicycle rear fork widening adjustment device

Abstract

The utility model belongs to bicycle technical field, and disclose a kind of carbon fiber bicycle rear fork widening adjusting device, including connecting block, the front end surface of connecting block is fixed with fixed block, the left and right sides of fixed block are fixed with rotating shaft, the outside spiral of rotating shaft is equipped with screw rod, the outside spiral of screw rod is equipped with adjusting column, through screw rod, adjusting column, rotating shaft, can be through rotating adjusting column to realize the accurate fine adjustment of rear fork width, easy to operate, can be flexibly adjusted width according to different specifications of wheel or use demand, strong adaptability, through connecting block, fixed block, the spiral connection mode of screw rod and adjusting column can keep better locking state after adjusting, ensure that the width of rear fork is stable during cycling, reduce the risk of loosening, combined with the high strength characteristics of carbon fiber material itself, overall structural strength is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of bicycle technology, specifically a carbon fiber bicycle rear fork widening and adjustment device. Background Technology

[0002] In the bicycle industry, carbon fiber, with its high strength and lightweight properties, has become an ideal material for high-end bicycle frames. However, the width of traditional carbon fiber bicycle rear forks is often fixed, which to some extent limits the flexibility of bicycle use. With the diversification of riding needs, users may want to change to different sizes of wheelsets or tires according to different road conditions, load requirements, or personal preferences. However, the fixed width of the rear fork cannot be adapted to wheelsets of different widths, causing many inconveniences for users. In addition, in some special scenarios, such as when carrying more items, a wider rear fork is also required to provide more space. Therefore, designing a device that can realize the width adjustment of carbon fiber bicycle rear forks has important practical significance and market value.

[0003] Meanwhile, the company also publicly disclosed (announcement number CN203528702U) a one-piece high wear-resistant carbon fiber bicycle rear fork, including the fork body. The fork body is an arc-shaped integral piece made of carbon fiber material. Its front part is set as a sprocket post with a bottom bracket hole at the top of the sprocket post. Its rear part is set as a double-sided fork post with a rear axle groove at the top of the fork post. Two disc brake holes are set on one side of the fork post, and the seat post is set on the middle arc back. Its beneficial effects are that it improves the high temperature resistance and friction resistance of the disc brake holes. At the same time, it changes the cumbersome and complex triangular structure of the rear wheel, sprocket, and saddle support frame into an integral arc-shaped structure, which not only reduces the number of parts but also improves the sturdiness. In addition, because carbon fiber is used as the integral material, the bicycle is not only extremely lightweight but also has greatly improved stress strength, thus improving the performance of the bicycle.

[0004] While carbon fiber boasts high strength, the aforementioned one-piece high-wear-resistant carbon fiber bicycle rear fork has poor impact resistance, making it prone to cracking or breakage, especially when struck by sharp objects or subjected to lateral impacts. For instance, significant bumps or collisions with obstacles during riding can damage the rear fork.

[0005] Therefore, a carbon fiber bicycle rear fork widening adjustment device is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides a carbon fiber bicycle rear fork widening adjustment device, which has the advantages of strong adaptability and precise adjustment.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a carbon fiber bicycle rear fork widening adjustment device, including a connecting block, a fixing block fixedly provided on the front end face of the connecting block, rotating shafts fixedly provided on the left and right sides of the fixing block, a lead screw spirally provided on the outer side of the rotating shaft, and an adjusting column spirally provided on the outer side of the lead screw. Through the lead screw, adjusting column, and rotating shaft, the rear fork width can be precisely adjusted by rotating the adjusting column. The operation is simple, and the width can be flexibly adjusted according to different wheel specifications or usage requirements, with strong adaptability.

[0008] Preferably, an adjusting block is fixedly provided on the rear end face of the adjusting column, a nut is spirally provided on the outer side of the lead screw, a rear fork body is fixedly provided on the front end face of the nut, and a limiting plate is fixedly provided on the left end face of the lead screw.

[0009] By adopting the above technical solution, the limiting plate can prevent the lead screw from moving excessively, thus ensuring the stability and safety of the device.

[0010] Preferably, a fixing frame is fixedly provided on the rear end face of the connecting block, a fixing plate two is fixedly provided on the right end face of the fixing frame, and a buffer column is fixedly provided on the upper end face of the fixing plate two.

[0011] By adopting the above technical solution, the buffer column provides a cushioning effect for the bicycle rear fork, which can reduce the impact force caused by road bumps during riding and improve riding comfort and stability.

[0012] Preferably, a spring is fixedly provided on the outer side of the buffer column, and the spring is fixedly provided with a second fixing plate, and a first fixing plate is fixedly provided on the upper end face of the buffer column.

[0013] By adopting the above technical solution, the buffer performance of the buffer post is further enhanced by the spring. When subjected to impact force, the spring can absorb and disperse energy, effectively reducing damage to the rear fork and other parts of the bicycle.

[0014] Preferably, connecting plates are fixedly provided on both the left and right sides of the fixing plate, and threaded columns are fixedly provided inside the connecting plates.

[0015] By adopting the above technical solution, the connection between the first fixing plate and other components is facilitated through the connecting plate and the first fixing plate.

[0016] Preferably, a support column is fixedly provided inside the fixing plate, and the threaded column is spirally arranged with the support column, and a connecting pipe is fixedly provided on the lower end face of the support column.

[0017] By adopting the above technical solution, the supporting role of the fixed plate is further strengthened by the support column, making the entire buffer device more stable.

[0018] Preferably, the fixing block has a threaded hole inside, and a threaded rod is spirally provided inside the threaded hole, with the threaded rod passing through the adjusting block.

[0019] By adopting the above technical solution, the threaded rod and adjusting block can be used to precisely adjust the adjusting block, thereby more accurately controlling the width of the rear fork and meeting the needs of different users.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a lead screw, adjusting column, and rotating shaft to achieve precise micro-adjustment of the rear fork width by rotating the adjusting column. It is simple to operate and can flexibly adjust the width according to different wheel specifications or usage needs, making it highly adaptable. Through connecting blocks and fixing blocks, the spiral connection between the lead screw and the adjusting column can maintain a good locking state after adjustment, ensuring the width of the rear fork is stable during riding and reducing the risk of loosening. Combined with the high strength characteristics of carbon fiber material itself, the overall structural strength is guaranteed.

[0021] 2. This utility model ensures the stability of the buffer device through the spring, the second fixing plate, the buffer column, and the first fixing plate, making it less prone to loosening or failure during long-term use. The connecting plate and the first fixing plate make the entire structure more robust and able to withstand certain external forces, thus ensuring the reliability of the device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the connecting block of this utility model; Figure 3 This is a schematic diagram of the installation structure of the connecting plate of this utility model; Figure 4 This is a schematic diagram of the installation structure of the limiting plate of this utility model.

[0023] In the diagram: 1. Support column; 2. Connecting pipe; 3. Fixing plate one; 4. Connecting plate; 5. Threaded column; 6. Buffer column; 7. Spring; 8. Fixing plate two; 9. Connecting block; 10. Fixing block; 11. Threaded hole; 12. Adjusting block; 13. Threaded rod; 14. Rotating shaft; 15. Adjusting column; 16. Lead screw; 17. Nut; 18. Limiting plate; 19. Fixing frame; 20. Rear fork body. Detailed Implementation

[0024] 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.

[0025] The following describes an embodiment of this utility model based on its overall structure.

[0026] like Figures 1 to 4 As shown, this utility model provides a carbon fiber bicycle rear fork widening adjustment device, including a connecting block 9, a fixing block 10 fixedly mounted on the front end face of the connecting block 9, and rotating shafts 14 fixedly mounted on the left and right sides of the fixing block 10. A lead screw 16 is spirally mounted on the outer side of the rotating shaft 14, and an adjusting column 15 is spirally mounted on the outer side of the lead screw 16. Through the lead screw 16, the adjusting column 15, and the rotating shaft 14, the rear fork width can be precisely adjusted by rotating the adjusting column 15. The operation is simple, and the width can be flexibly adjusted according to different wheel specifications or usage needs. It has strong adaptability. Through the connecting block 9, the fixing block 10, and the spiral connection between the lead screw 16 and the adjusting column 15, a good locking state can be maintained after adjustment, ensuring the width of the rear fork is stable during riding and reducing the risk of loosening. Combined with the high strength characteristics of carbon fiber material itself, the overall structural strength is guaranteed.

[0027] In this embodiment, an adjusting block 12 is fixedly provided on the rear end face of the adjusting column 15, a nut 17 is spirally provided on the outer side of the lead screw 16, a rear fork body 20 is fixedly provided on the front end face of the nut 17, and a limiting plate 18 is fixedly provided on the left end face of the lead screw 16. The limiting plate 18 can prevent the lead screw 16 from moving excessively, thus ensuring the stability and safety of the device.

[0028] A fixing frame 19 is fixedly provided on the rear end face of the connecting block 9, a fixing plate 2 8 is fixedly provided on the right end face of the fixing frame 19, and a buffer post 6 is fixedly provided on the upper end face of the fixing plate 2 8. The buffer post 6 provides a buffering effect for the bicycle rear fork, which can reduce the impact force caused by road bumps during riding and improve riding comfort and stability.

[0029] A spring 7 is fixedly installed on the outer side of the buffer post 6, and the spring 7 is fixedly installed with the fixing plate 8. The upper end face of the buffer post 6 is fixedly installed with the fixing plate 3. The buffer performance of the buffer post 6 is further enhanced by the spring 7. When subjected to impact force, the spring 7 can absorb and disperse energy, effectively reducing damage to the rear fork and other parts of the bicycle.

[0030] Connecting plates 4 are fixedly installed on both the left and right sides of the fixing plate 3. Threaded posts 5 are fixedly installed inside the connecting plates 4. The connecting plates 4 and the fixing plate 3 facilitate the connection between the fixing plate 3 and other components.

[0031] The fixed plate 3 is internally fixed with a support column 1, and the threaded column 5 is spirally connected to the support column 1. The lower end face of the support column 1 is fixed with a connecting pipe 2. The support column 1 further strengthens the supporting role of the fixed plate 3, making the entire buffer device more stable.

[0032] The fixed block 10 has a threaded hole 11 inside, and a threaded rod 13 is spirally provided inside the threaded hole 11. The threaded rod 13 passes through the adjusting block 12. Through the threaded rod 13 and the adjusting block 12, the adjusting block 12 can be precisely adjusted, thereby more accurately controlling the width of the rear fork and meeting the needs of different users.

[0033] Working principle and process of a carbon fiber bicycle rear fork widening adjustment device: In the initial state, the lead screw 16 is located outside the rotating shaft 14, the adjusting pin 15 is sleeved on the outside of the lead screw 16, and the nut 17 is also installed on the lead screw 16 and connected to the rear fork body 20. The limiting plate 18 is fixed to the left end face of the lead screw 16 to prevent excessive movement of the lead screw 16. When it is necessary to widen the bicycle rear fork, the operator rotates the lead screw 16. Since the lead screw 16 and the rotating shaft 14 are connected by a screw, the lead screw 16 will move left and right along the rotating shaft 14. As the lead screw 16 moves, the adjusting pin 15, which is connected to it by a screw, will also move accordingly. An adjusting block 12 is fixedly provided on the rear end face of the adjusting pin 15. The adjusting block 12 moves together with the adjusting column 15. The nut 17 on the outside of the lead screw 16 is fixedly connected to the rear fork body 20. The movement of the lead screw 16 will drive the nut 17 to move, thereby enabling the rear fork body 20 to be widened or narrowed. At the same time, the fixing block 10 has a threaded hole 11 inside, and a threaded rod 13 is spirally installed in the threaded hole 11. The threaded rod 13 passes through the adjusting block 12. During the adjustment process, the threaded rod 13 can guide and stabilize the movement of the adjusting block 12, ensuring the accuracy and stability of the adjustment process. The rear end face of the connecting block 9 is fixedly provided with a fixing bracket 19. A buffer post 6 is fixed to the fixing plate 2 8 on the right end face. A spring 7 is fixed to the outside of the buffer post 6, and the other end of the spring 7 is fixed to the fixing plate 2 8. A fixing plate 1 3 is fixed to the upper end face of the buffer post 6. When the bicycle encounters bumps or vibrations during riding, the impact force from the ground will be transmitted to the rear fork. At this time, the vibration of the rear fork will be transmitted to the fixing frame 19 through the connecting block 9, and then to the fixing plate 2 8. After the fixing plate 2 8 is vibrated, it will cause the buffer post 6 to move up and down. Since there is a spring 7 on the outside of the buffer post 6, the spring 7 will undergo elastic deformation during the movement of the buffer post 6, absorbing and buffering the vibration energy. The elasticity of spring 7 can effectively reduce the vibration transmitted to the bicycle frame, improving riding comfort and stability. Threaded posts 5 are fixed inside the connecting plates 4 on both sides of the fixing plate 3. The threaded posts 5 are spirally connected to the support posts 1. A connecting tube 2 is fixed to the lower end of the support posts 1. These components work together to connect and fix the buffer device to other parts of the bicycle. Furthermore, the spiral connection between the threaded posts 5 and the support posts 1 can be adjusted according to actual needs to adapt to different riding requirements and bicycle structures, thus functioning as a carbon fiber bicycle rear fork widening adjustment device.

[0034] 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 process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbon fiber bicycle rear fork widening adjustment device, comprising a connecting block (9), characterized in that: The front end face of the connecting block (9) is fixedly provided with a fixing block (10), and the left and right sides of the fixing block (10) are fixedly provided with rotating shafts (14). The outer side of the rotating shaft (14) is provided with a lead screw (16), and the outer side of the lead screw (16) is provided with an adjusting column (15).

2. The carbon fiber bicycle rear fork widening adjustment device according to claim 1, characterized in that: An adjusting block (12) is fixedly provided on the rear end face of the adjusting column (15), a nut (17) is spirally provided on the outer side of the lead screw (16), a rear fork body (20) is fixedly provided on the front end face of the nut (17), and a limiting plate (18) is fixedly provided on the left end face of the lead screw (16).

3. The carbon fiber bicycle rear fork widening adjustment device according to claim 1, characterized in that: The rear end face of the connecting block (9) is fixedly provided with a fixing frame (19), the right end face of the fixing frame (19) is fixedly provided with a fixing plate two (8), and the upper end face of the fixing plate two (8) is fixedly provided with a buffer column (6).

4. The carbon fiber bicycle rear fork widening adjustment device according to claim 3, characterized in that: A spring (7) is fixedly provided on the outside of the buffer column (6), and the spring (7) is fixedly provided with the second fixing plate (8). The upper end face of the buffer column (6) is fixedly provided with the first fixing plate (3).

5. The carbon fiber bicycle rear fork widening adjustment device according to claim 4, characterized in that: The fixing plate (3) is fixedly provided with connecting plates (4) on both the left and right sides, and the connecting plate (4) is fixedly provided with threaded columns (5).

6. The carbon fiber bicycle rear fork widening adjustment device according to claim 4, characterized in that: The fixed plate (3) is internally fixed with a support column (1), and the threaded column (5) is spirally arranged with the support column (1). The lower end face of the support column (1) is fixed with a connecting pipe (2).

7. The carbon fiber bicycle rear fork widening adjustment device according to claim 1, characterized in that: The fixed block (10) has a threaded hole (11) inside, and a threaded rod (13) is spirally provided inside the threaded hole (11), and the threaded rod (13) passes through the adjusting block (12).

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