A high strength impact resistant carbon fiber bicycle fork

Abstract

The utility model discloses a high -strength impact -resistant carbon fiber bicycle front fork belongs to bicycle technical field, and it includes the front fork main stem, the front fork main stem lower end surface center center center leans both sides department all is equipped with the inner support arm, two the inner support arm outside wall center leans lower department all is equipped with the outer support arm, two the outer support arm inside center department all is equipped with the buffer impact structure, two the outer support arm between is equipped with high -strength structure, in addition, the utility model discloses, through the I -shaped inner support frame utilizes the mechanical characteristic, overall coverage stress direction, limits the outer support arm before and after, the deformation of up and down, integrates the inner and outer support arm as the stress whole, avoids unilateral stress to tilt distortion, and the outer support arm ring -shaped reinforcing boss evenly disperses radial, circumferential stress, eliminates stress concentration, prevents the outer support arm cracking, and the bolt lock is formed rigid transmission chain, and the stress of outer support arm can be quickly transferred to the other side, realizes stress equal division, reduces single component pressure, prolongs the front fork anti -deformation life.

Description

Technical Field

[0001] This utility model belongs to the field of bicycle technology, specifically a high-strength, impact-resistant carbon fiber bicycle front fork. Background Technology

[0002] As cycling expands from daily commuting to professional competition and high-end leisure activities, the market's performance requirements for the core component of bicycles, the front fork, are gradually upgrading. As a key structure connecting the frame and the front wheel, the front fork not only needs to undertake the basic functions of supporting the bicycle and guiding steering, but also needs to have excellent structural strength and impact cushioning capabilities under complex road conditions, such as bumpy mountain roads, gravel roads, and high-speed cornering, in order to ensure riding safety, stability, and comfort.

[0003] Existing high-strength, impact-resistant carbon fiber bicycle forks have the following main shortcomings: Most existing high-strength, impact-resistant carbon fiber bicycle forks employ a simple structure of a main stem and straight arm. The connection points between the outer and inner control arms and the main stem, as well as the connection points between the lower end of the control arm and the wheel assembly, are prone to stress concentration points due to abrupt changes in cross-section and uneven wall thickness. Over time, this can lead to delamination and cracking of the carbon fiber layers. In pursuit of lightweighting, excessive reduction in wall thickness or reliance on only localized ply reinforcement results in an imbalance between bending and torsional resistance. This makes the forks prone to drifting at high speeds and tilting under unilateral stress. Furthermore, most forks use a two-stage buffer system of springs and simple damping. Overly rapid spring return can generate secondary impacts, and the damping force adjustment precision is low, resulting in a noticeable bumpy riding experience. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a high-strength, impact-resistant carbon fiber bicycle fork. It solves the problems of existing technologies, which mostly use a simple design of main stem and straight arm. The connection between the outer and inner support arms and the main stem, as well as the connection between the lower end of the support arm and the wheel assembly, are prone to stress concentration points due to abrupt changes in cross-section and uneven wall thickness. Long-term use can easily lead to carbon fiber delamination and cracking. In pursuit of lightweighting, the wall thickness is excessively reduced, or only local ply reinforcement is used, resulting in an imbalance between bending and torsional resistance. This makes it easy to deviate when cornering at high speeds and tilt when subjected to unilateral force. The cushioning often uses a two-stage structure of spring and simple damping. The spring returns too quickly, which can easily generate secondary impacts. The damping force adjustment accuracy is low, and the riding experience is noticeably bumpy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-strength, impact-resistant carbon fiber bicycle front fork, including a front fork main rod, inner support arms are provided at both sides of the center of the lower end face of the front fork main rod, outer support arms are sleeved at the lower center of the outer side walls of the two inner support arms, a buffer impact structure is provided at the center of the inner side of the two outer support arms, a high-strength structure is provided between the two outer support arms, and a second connecting block is provided at the lower center of the rear end face of the two outer support arms; The high-strength structure includes a reinforcing plate, which is located at the lower rear of the outer side wall of the two inner arms. Horizontal support plates are provided at the upper and lower positions between the two outer arms, and a vertical support plate is provided between the two horizontal support plates. First connecting blocks are provided on both sides of the two horizontal support plates and on the outer side of the two outer arms. First bolts are provided at the front and rear positions of the center of one side wall of each of the four first connecting blocks.

[0006] As a further embodiment of this utility model: a second bolt is provided at the front and rear of the center of the upper end surface of the upper horizontal support plate and the lower end surface of the lower horizontal support plate, and multiple reinforcing protrusions are arranged in a ring on the outer side walls of the two outer support arms.

[0007] As a further embodiment of this utility model: one end of each of the eight first bolts passes through one side wall of the four first connecting blocks and the two side walls of the two horizontal support plates, and the ends are all threaded and rotatably connected to the inside of the two horizontal support plates.

[0008] As a further embodiment of this utility model: one end of the two second bolts at the upper position and the two second bolts at the lower position respectively penetrates the upper end surface of the upper horizontal support plate, the lower end surface of the lower horizontal support plate, the upper end surface of the vertical support plate and the lower end surface of the vertical support plate, and the ends are threaded and rotatably connected to the inside of the vertical support plate.

[0009] As a further embodiment of this utility model: the two shock-absorbing structures include two third bolts, which are respectively located at the center of the upper end face of the front fork main rod near both sides. One end of each of the two third bolts passes through the upper end face of the front fork main rod and the upper end face of the two inner support arms, and is threadedly connected to the inside of the inner support arms. A stabilizing plate is provided at the center of the lower end face of each of the two inner support arms.

[0010] As a further embodiment of this utility model: damping is provided at the center of the lower end face of each of the two stabilizing plates, a support plate is provided at the center of the lower end face of each of the two damping plates, and a compression spring is sleeved between the two support plates and the two stabilizing plates and located on the outer side of each of the two damping plates.

[0011] As a further embodiment of this utility model: a buffer block is provided at the center of the lower end face of each of the two support plates, a support block is provided at the center of the lower end face of each of the two buffer blocks, and a support block is provided at the center of the lower end face of each of the two support blocks.

[0012] As a further embodiment of this utility model: the inner walls of both support blocks are fitted with inner layers, and multiple grooves are arranged in a ring at the center of the upper end face of both inner layers. A support column is provided at the center of the multiple grooves, and a buffer pad is provided at the center of the lower end face of both support blocks.

[0013] As a further embodiment of this utility model, the two inner support arms are respectively adapted to the two outer support arms.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes an I-shaped inner support frame composed of horizontal and vertical support plates. Leveraging the bending resistance of the upper and lower flanges and the shear resistance of the web of the I-shaped structure, it achieves comprehensive coverage of the force direction on the fork. The horizontal support plates precisely limit the relative deformation of the two outer control arms along the front-rear direction, while the vertical support plates effectively resist the bending of the outer control arms along the vertical direction. These two elements form a rigid, interwoven constraint, integrating the outer and inner control arms into an inseparable load-bearing unit. This completely avoids fork tilting or twisting caused by unilateral force. A ring-shaped arrangement of reinforcing protrusions is used on the outer wall of the outer control arms. The ring structure can evenly distribute the radial and circumferential stresses borne by the outer control arm during riding to the entire arm body, eliminating stress concentration points caused by excessively thin local walls, and preventing cracking of the outer control arm from the source. At the same time, the first bolt passes through the first connecting block and the cross plate, and the second bolt locks the cross plate and the vertical plate, forming a rigid transmission chain of bolts, support frame and outer control arm. This allows the force on the outer control arm to be quickly transferred to the other side through the cross plate, achieving the effect of equal distribution of force on one side and load on both sides, further reducing the load-bearing pressure of a single component and significantly improving the overall deformation resistance life of the fork.

[0015] This invention utilizes a combined deformation and stress-relief mechanism formed by hydraulic damping and compression springs. When an impact occurs, the compression spring first converts the impact kinetic energy into elastic potential energy through elastic deformation, initially weakening the impact energy. Simultaneously, the spring's restoring property maintains the basic posture of the fork. The synchronously activated hydraulic damping, through the viscous resistance of the internal hydraulic oil, precisely controls the deformation speed and restoring rhythm of the spring, preventing secondary impacts caused by rapid compression and instantaneous rebound. This achieves a smooth effect of cushioning without bumps and restoring without hand jolts. Furthermore, through a three-level protection unit consisting of a buffer block, a buffer pad, and a support column, when the impact energy exceeds the bearing limit of the spring and damping, the elastic rubber buffer block and buffer pad absorb the residual impact energy through their own deformation, while preventing wear caused by hard collisions between metal parts. The support column in the inner groove plays a rigid limiting role, preventing the buffer block from losing its cushioning capacity due to excessive deformation, and distributing the locally concentrated force to the entire support block. This forms a dual guarantee of elastic cushioning without failure and rigid limiting without damage, completely solving the technical shortcomings of traditional fork cushioning components that are easily damaged under extreme impacts, and significantly improving riding safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the three-dimensional disassembled structure of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the three-dimensional disassembled structure of this utility model. Figure 2 ; Figure 5 for Figure 3 A magnified structural diagram of point A in the middle.

[0017] In the diagram: 1. Front fork main rod; 2. Inner control arm; 3. Outer control arm; 4. High-strength structure; 401. Reinforcing plate; 402. Horizontal support plate; 403. Vertical support plate; 404. First connecting block; 405. First bolt; 406. Second bolt; 407. Reinforcing protrusion; 5. Shock-absorbing structure; 501. Third bolt; 502. Stabilizing plate; 503. Damping; 504. Support plate; 505. Compression spring; 506. Buffer block; 507. Support block; 508. Inner layer; 509. Groove; 510. Support column; 511. Buffer pad; 6. Second connecting block. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] like Figures 1-5 As shown, this utility model provides a technical solution: A high-strength, impact-resistant carbon fiber bicycle fork, comprising: The front fork main rod 1 has inner support arms 2 on both sides at the center of the lower end face of the front fork main rod 1. Outer support arms 3 are fitted on the lower center of the outer side wall of the two inner support arms 2. A shock-absorbing structure 5 is provided at the center of the inner side of the two outer support arms 3. A high-strength structure 4 is provided between the two outer support arms 3. A second connecting block 6 is provided at the lower center of the rear end face of the two outer support arms 3. The two inner support arms 2 are adapted to the two outer support arms 3 respectively.

[0020] The high-strength structure 4 includes a reinforcing plate 401, which is located at the rear of the lower end of the outer walls of the two inner supports 2. Horizontal support plates 402 are located at the upper and lower ends between the two outer supports 3. A vertical support plate 403 is located between the two horizontal support plates 402. First connecting blocks 404 are located on both sides of the two horizontal support plates 402 and on the outer sides of the two outer supports 3. First bolts 405 are located at the front and rear ends of the center of one side wall of each of the four first connecting blocks 404. Second bolts 406 are located at the front and rear ends of the upper and lower ends of the upper and lower horizontal support plates 402, respectively. The outer walls of the two outer supports 3 are... Multiple reinforcing protrusions 407 are arranged in a ring. One end of each of the eight first bolts 405 passes through one side wall of each of the four first connecting blocks 404 and the two side walls of each of the two horizontal support plates 402, and the ends of the bolts 405 are threaded and rotatably connected to the interior of the two horizontal support plates 402. One end of each of the two upper bolts 406 and the two lower bolts 406 passes through the upper end face of the upper horizontal support plate 402, the lower end face of the lower horizontal support plate 402, the upper end face of the vertical support plate 403, and the lower end face of the vertical support plate 403, and the ends of the bolts 406 are threaded and rotatably connected to the interior of the vertical support plate 403.

[0021] The annular reinforcing protrusions 407 on the outer walls of the two outer support arms 3 directly increase the local wall thickness and structural strength of the outer support arm 3, dispersing the stress concentration points of the outer support arm 3 under load and preventing cracking of the outer support arm 3 due to excessive local stress. The horizontal support plate 402 and the vertical support plate 403 between the two outer support arms 3 form an I-shaped inner support frame. The horizontal support plate 402 restricts the relative deformation of the two outer support arms 3 in the front-rear direction, and the vertical support plate 403 restricts the bending of the outer support arm 3 in the vertical direction. The combination of the two forms a rigid whole between the outer support arm 3 and the inner support arm 2, avoiding tilting when the front fork is subjected to force on one side. Or twisted, the first bolt 405 passes through the first connecting block 404 and is threaded to the horizontal support plate 402, rigidly connecting the horizontal support plate 402 and the outer support arm 3, ensuring that the force on the outer support arm 3 can be transferred to the other side through the horizontal support plate 402, so as to achieve even distribution of force. The second bolt 406 passes through the horizontal support plate 402 and is threaded to the vertical support plate 403, locking the horizontal and vertical support frames into an inseparable rigid structure, further improving the deformation resistance of the support frame, and at the same time transferring the force on the inner support arm 2 to the support frame through the reinforcing plate 401, so as to avoid the inner support arm 2 bearing too much stress alone.

[0022] The two shock-absorbing structures 5 include two third bolts 501, which are respectively located on both sides of the center of the upper end face of the front fork main rod 1. One end of each third bolt 501 passes through the upper end face of the front fork main rod 1 and the upper end face of the two inner support arms 2, and is threadedly connected to the interior of the inner support arms 2. A stabilizing plate 502 is provided at the center of the lower end face of each of the two inner support arms 2. A damping plate 503 is provided at the center of the lower end face of each of the two stabilizing plates 502. A support plate 504 is provided at the center of the lower end face of each of the two damping plates 503. The two support plates 504 and the two stabilizing plates 504 are connected to each other. Compression springs 505 are fitted between the two dampers 503 and on the outside of the two dampers 503 respectively. Buffer blocks 506 are provided at the center of the lower end face of the two support plates 504. Support blocks 507 are provided at the center of the lower end face of the two buffer blocks 506. Support blocks 507 are provided at the center of the lower end face of the two support blocks 507. Inner layers 508 are fitted on the inner sidewalls of the two support blocks 507. Multiple grooves 509 are arranged in a ring at the center of the upper end face of the two inner layers 508. Support columns 510 are provided at the center of the interior of the multiple grooves 509. Buffer pads 511 are provided at the center of the lower end face of the two support blocks 507.

[0023] When a bicycle rolls over a bumpy surface or experiences an impact, the external force first acts on the lower end of the outer support arm 3, causing the outer support arm 3 to move upward relative to the inner support arm 2. The support plate 504 inside the outer support arm 3 moves outward, compressing the compression spring 505 sleeved on the outside of the damper 503. The compression spring 505 undergoes elastic deformation, converting the kinetic energy generated by the impact into the elastic potential energy of the spring, initially weakening most of the impact energy. Simultaneously, the spring's restoring property causes the outer support arm 3 to return to its original position, preventing continuous vibration. The viscous damper 503 relieves the force, and the compression spring 505... During deformation, the damper 503 is hydraulic. The fluid hydraulic oil inside the damper 503 is squeezed during the relative movement of the support plate 504 and the stabilizing plate 502. The viscous resistance of the fluid slows down the deformation speed and reset speed of the spring, avoiding the spring from rebounding quickly and causing secondary impact, thus achieving smooth buffering and further absorbing impact energy. Through the local protection of the buffer block 506, buffer pad 511 and support column 510, if the impact energy is large and exceeds the buffer limit of the spring and damper 503, the subsequent impact will be transmitted to the local structure at the lower end of the outer arm 3.

[0024] The following components further relieve stress: the buffer block 506 and the buffer pad 511 are elastic rubbers that directly contact the external parts, absorbing residual impact energy through their own elastic deformation, while avoiding wear caused by hard collisions between metal parts. The support column 510 in the groove 509 of the inner layer 508 provides rigid support and limit when the buffer block 506 deforms, preventing the buffer block 506 from excessively deforming and failing, while distributing the local force to the entire support block 507 to avoid stress concentration. The third bolt 501 passes through the front fork main rod 1 and the inner support arm 2 and is threaded to ensure a rigid connection between the inner support arm 2 and the front fork main rod 1, so that the impact energy absorbed by the shock-absorbing structure 5 can be smoothly transferred to the front fork main rod 1 through the inner support arm 2 and then distributed to the frame, preventing the connection between the inner support arm 2 and the main rod from loosening or breaking due to impact.

[0025] The working principle of this utility model is as follows: The annular reinforcing protrusions 407 on the outer walls of the two outer support arms 3 directly increase the local wall thickness and structural strength of the outer support arm 3, dispersing the stress concentration points of the outer support arm 3 under load and preventing cracking of the outer support arm 3 due to excessive local stress. The horizontal support plate 402 and the vertical support plate 403 between the two outer support arms 3 form an I-shaped inner support frame. The horizontal support plate 402 restricts the relative deformation of the two outer support arms 3 in the front-rear direction, and the vertical support plate 403 restricts the bending of the outer support arm 3 in the vertical direction. The combination of the two forms a rigid whole between the outer support arm 3 and the inner support arm 2, avoiding tilting when the front fork is subjected to force on one side. Or twisted, the first bolt 405 passes through the first connecting block 404 and is threaded to the horizontal support plate 402, rigidly connecting the horizontal support plate 402 and the outer support arm 3, ensuring that the force on the outer support arm 3 can be transferred to the other side through the horizontal support plate 402, so as to achieve even distribution of force. The second bolt 406 passes through the horizontal support plate 402 and is threaded to the vertical support plate 403, locking the horizontal and vertical support frames into an inseparable rigid structure, further improving the deformation resistance of the support frame, and at the same time transferring the force on the inner support arm 2 to the support frame through the reinforcing plate 401, so as to avoid the inner support arm 2 bearing too much stress alone.

[0026] When riding, the external forces on the fork are divided into normal forces and impact forces. For normal forces, the I-shaped support frame of the high-strength structure 4, the reinforcing protrusion 407, and the bolt fastening provide rigid support to ensure that the fork does not deform and maintain riding stability. For impact forces, the compression spring 505, damping 503, buffer block 506, and buffer pad 511 of the impact buffer structure 5 first absorb and dissipate the energy in three stages to weaken the impact energy. Then, the residual force is transmitted to the fork main rod 1 and the frame through the inner support arm 2 and the high-strength structure 4. Finally, it achieves the dual functions of high strength anti-deformation and efficient impact buffering, ensuring riding safety and comfort.

[0027] When a bicycle rolls over a bumpy surface or experiences an impact, the external force first acts on the lower end of the outer support arm 3, causing the outer support arm 3 to move upward relative to the inner support arm 2. The support plate 504 inside the outer support arm 3 moves outward, compressing the compression spring 505 sleeved on the outside of the damper 503. The compression spring 505 undergoes elastic deformation, converting the kinetic energy generated by the impact into the elastic potential energy of the spring, initially weakening most of the impact energy. Simultaneously, the spring's restoring property causes the outer support arm 3 to return to its original position, preventing continuous vibration. The viscous damper 503 relieves the force, and the compression spring 505... During deformation, the damper 503 is hydraulic. The fluid hydraulic oil inside the damper 503 is squeezed during the relative movement of the support plate 504 and the stabilizing plate 502. The viscous resistance of the fluid slows down the deformation speed and reset speed of the spring, avoiding the spring from rebounding quickly and causing secondary impact, thus achieving smooth buffering and further absorbing impact energy. Through the local protection of the buffer block 506, buffer pad 511 and support column 510, if the impact energy is large and exceeds the buffer limit of the spring and damper 503, the subsequent impact will be transmitted to the local structure at the lower end of the outer arm 3.

[0028] The following components further relieve stress: the buffer block 506 and the buffer pad 511 are elastic rubbers that directly contact the external parts, absorbing residual impact energy through their own elastic deformation, while avoiding wear caused by hard collisions between metal parts. The support column 510 in the groove 509 of the inner layer 508 provides rigid support and limit when the buffer block 506 deforms, preventing the buffer block 506 from excessively deforming and failing, while distributing the local force to the entire support block 507 to avoid stress concentration. The third bolt 501 passes through the front fork main rod 1 and the inner support arm 2 and is threaded to ensure a rigid connection between the inner support arm 2 and the front fork main rod 1, so that the impact energy absorbed by the shock-absorbing structure 5 can be smoothly transferred to the front fork main rod 1 through the inner support arm 2 and then distributed to the frame, preventing the connection between the inner support arm 2 and the main rod from loosening or breaking due to impact.

[0029] Furthermore, the control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Since this utility model is used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0030] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A high-strength, impact-resistant carbon fiber bicycle fork, characterized in that: The fork includes a main stem (1), with inner support arms (2) provided at the center of the lower end face of the main stem (1) on both sides, and outer support arms (3) sleeved at the center of the outer side wall of the two inner support arms (2), with a buffer impact structure (5) provided at the center of the inner side of the two outer support arms (3), and a high-strength structure (4) provided between the two outer support arms (3), and a second connecting block (6) provided at the center of the rear end face of the two outer support arms (3). The high-strength structure (4) includes a reinforcing plate (401), which is located at the rear of the lower end of the outer wall of the two inner arms (2). A horizontal support plate (402) is provided at the upper and lower ends of the two outer arms (3). A vertical support plate (403) is provided between the two horizontal support plates (402). A first connecting block (404) is provided on both sides of the two horizontal support plates (402) and on the outer side of the two outer arms (3). A first bolt (405) is provided at the front and rear ends of the center of one side wall of the four first connecting blocks (404).

2. The high-strength, impact-resistant carbon fiber bicycle fork according to claim 1, characterized in that: The upper end face of the upper horizontal support plate (402) and the lower end face of the lower horizontal support plate (402) are provided with second bolts (406) at the front and rear of the center, respectively. The outer walls of the two outer arms (3) are provided with multiple reinforcing protrusions (407) arranged in a ring.

3. The high-strength, impact-resistant carbon fiber bicycle fork according to claim 2, characterized in that: One end of each of the eight first bolts (405) passes through one side wall of the four first connecting blocks (404) and the two side walls of the two horizontal support plates (402) to the interior of the two horizontal support plates (402), and the ends are threaded and rotatably connected to the interior of the two horizontal support plates (402).

4. A high-strength, impact-resistant carbon fiber bicycle fork according to claim 2, characterized in that: The two second bolts (406) at the top and the two second bolts (406) at the bottom have one end passing through the upper end face of the upper horizontal support plate (402), the lower end face of the lower horizontal support plate (402), the upper end face of the vertical support plate (403), and the lower end face of the vertical support plate (403) respectively, and are connected to the interior of the vertical support plate (403) by threaded rotation.

5. A high-strength, impact-resistant carbon fiber bicycle fork according to claim 1, characterized in that: The two shock-absorbing structures (5) include two third bolts (501). The two third bolts (501) are respectively located on both sides of the center of the upper end face of the front fork main rod (1). One end of the two third bolts (501) passes through the upper end face of the front fork main rod (1) and the upper end face of the two inner support arms (2) to the inside of the two inner support arms (2), and the end is threaded and rotatably connected to the inside of the inner support arms (2). A stabilizing plate (502) is provided at the center of the lower end face of the two inner support arms (2).

6. A high-strength, impact-resistant carbon fiber bicycle fork according to claim 5, characterized in that: Damping (503) is provided at the center of the lower end face of each of the two stabilizing plates (502), and supporting plate (504) is provided at the center of the lower end face of each of the two damping (503). Compression spring (505) is sleeved between the two supporting plates (504) and the two stabilizing plates (502) and located on the outside of the two damping (503).

7. A high-strength, impact-resistant carbon fiber bicycle fork according to claim 6, characterized in that: Each of the two support plates (504) has a buffer block (506) at the center of its lower end face, and each of the two buffer blocks (506) has a support block (507) at the center of its lower end face, and each of the two support blocks (507) has a support block (507) at the center of its lower end face.

8. A high-strength, impact-resistant carbon fiber bicycle fork according to claim 7, characterized in that: The inner walls of the two support blocks (507) are fitted with inner layers (508), and the upper surfaces of the two inner layers (508) are provided with multiple grooves (509) arranged in a ring at the center. The center of the multiple grooves (509) is provided with a support column (510), and the center of the lower surfaces of the two support blocks (507) is provided with a buffer pad (511).

9. A high-strength, impact-resistant carbon fiber bicycle fork according to claim 1, characterized in that: The two inner arms (2) are respectively adapted to the two outer arms (3).

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