A shock-resistant dual-shock-absorbing bicycle fork

Abstract

This utility model discloses an impact-resistant dual-shock-absorbing bicycle front fork, belonging to the field of bicycle front forks. The device includes: a head tube, a pneumatic fork assembly, a fork bridge, and a shock absorber. The pneumatic fork assembly, installed at the bottom of the head tube, includes a fork shoulder, a travel tube, a fork holder, and fork legs. The travel tube is symmetrically installed at the bottom of the fork shoulder. A locking switch and an air chamber cover are respectively provided at the top of the fork shoulder. One end of the travel tube is fixedly connected to the bottom of the fork shoulder, and the other end is slidably connected to the fork holder. The fork holder is fixed to the other end of the travel tube by a sealing gasket. Compared to traditional dual-shock-absorbing bicycle front forks, the shock absorber at the top of the fork bridge can filter out smaller but frequent vibrations, reducing their transmission to the handlebars and rider's body. By filtering these vibrations, it helps maintain good wheel-to-ground contact and improves tire grip.

Description

Technical Field

[0001] This utility model relates to the field of bicycle front fork technology, specifically to an impact-resistant dual-shock-absorbing bicycle front fork. Background Technology

[0002] The bicycle fork is an important component of a bicycle. Located at the front of the bicycle, it connects to the handlebars at the top and the front axle at the bottom. Its main functions are guidance and support. Traditional bicycle forks mostly use a single shock absorber design, which has limited shock absorption capacity for extreme terrain or high-speed riding. Summary of the Invention

[0003] The purpose of this invention is to address the problem that existing technologies lack a bicycle front fork with a dual shock absorption mechanism, and to provide an impact-resistant dual shock absorption bicycle front fork.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: an impact-resistant dual-shock-absorbing bicycle front fork, including a head tube, a pneumatic front fork assembly, a fork bridge, and a shock absorber. The pneumatic front fork assembly, installed at the bottom of the head tube, includes a fork shoulder, a travel tube, a fork barrel, and fork feet. The travel tubes are symmetrically installed at the bottom of the fork shoulder. A locking switch and an air chamber cover are respectively provided at the top of the fork shoulder. One end of the travel tube is fixedly connected to the bottom of the fork shoulder, and the other end is slidably connected to the fork barrel. The fork barrel is fixed to the other end of the travel tube by a sealing gasket, and the fork feet are welded to the other end of the fork barrel.

[0005] The fork bridge is installed on the fork barrel, the bottom of the fork bridge is welded and fixed to one end of the fork barrel, the shock absorber is welded to the top of the fork bridge, and the top of the shock absorber is fixed to the head tube by a connecting snap ring.

[0006] In the above technical solution, the high-pressure air in the stroke tube and fork thimble is used as the damping medium to quickly absorb road impacts, significantly improving riding comfort and handling. The locking switch can lock the fork, disabling its damping function and preventing energy consumption when not needed. The air chamber cover protects the internal structure of the air chamber, preventing dust, moisture, and foreign objects from entering, reducing wear on internal components, and extending the life of the fork. The shock absorber on the top of the fork bridge can filter out smaller but frequent vibrations, reducing their transmission to the handlebars and rider's body. By filtering these vibrations, it helps maintain good contact between the wheel and the ground, improving tire grip.

[0007] Preferably, the pneumatic fork assembly is made of aluminum alloy.

[0008] In the above technical solutions, aluminum alloy has a low density and high strength and rigidity, which can significantly reduce the weight of the air fork and withstand various forces during riding.

[0009] Preferably, the head tube, fork feet, fork barrel, fork bridge, and shock absorber are welded using TIG welding.

[0010] In the above technical solutions, TIG welding can provide high-quality welds, ensuring the strength and stability of the welded joint.

[0011] In the manufacturing of bicycle forks, the fork legs, fork thimble, fork bridge, and shock absorber need to withstand significant forces and impacts. High-quality welds ensure that these components will not break or deform during use.

[0012] Preferably, the surfaces of the fork shoulder, fork barrel, and fork bridge are anodized.

[0013] In the above technical solutions, anodizing can generate a thicker and denser oxide film, effectively isolating air and moisture, significantly enhancing the corrosion resistance of fork shoulders, fork barrels and fork bridges, and extending their service life.

[0014] Preferably, the sealing gasket is made of silicone.

[0015] In the above technical solution, the silicone sealing gasket has a low coefficient of friction, which can reduce the friction between the stroke tube and the fork thimble, making the extension and retraction of the fork smoother and improving the response speed of the shock absorption system.

[0016] Preferably, the shock absorber is a damping shock absorber.

[0017] In the above technical solution, the damping shock absorber works in conjunction with the air pressure fork assembly to handle different types of vibrations more precisely. When encountering a large impact, it works together with the air pressure fork assembly to ensure that the fork remains stable during compression and rebound, avoiding excessive swaying or bottoming out, thereby improving riding safety and handling.

[0018] Preferably, the bottom of the fork bridge has a through hole for the fork barrel to pass through.

[0019] In the above technical solution, the through-hole provides a precise mounting position for the fork barrel, which can better distribute various forces generated during riding, including vertical impact forces and lateral forces. This dispersion effect can effectively reduce the risk of deformation of the fork bridge and fork barrel, and improve the overall strength and durability of the fork.

[0020] Preferably, the inner wall of the connecting ring is connected to the head tube.

[0021] In the above technical solution, the shock absorber is connected to the head tube through a connecting ring. The force generated by the impact can be transmitted more evenly to other parts of the frame through the head tube, reducing the local pressure on the fork and other components and avoiding deformation or damage caused by excessive force.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. This impact-resistant dual-suspension bicycle fork uses high-pressure air from the travel tubes and fork drops as the damping medium, quickly absorbing road impacts and significantly improving riding comfort and handling. A lock-up switch can lock the fork, disabling its damping function and preventing energy consumption when not needed. The air chamber cover protects the internal structure, preventing dust, moisture, and foreign objects from entering, reducing wear on internal components and extending the fork's lifespan. The shock absorber on the top of the fork bridge filters out smaller but frequent vibrations, reducing their transmission to the handlebars and rider. Filtering these vibrations helps maintain good wheel-to-ground contact and improves tire grip. The low density and high strength and rigidity of the aluminum alloy material significantly reduce the weight of the air fork and withstand various forces during riding. TIG welding provides high-quality welds, ensuring the strength and stability of the welded areas. In bicycle fork manufacturing, the fork legs, fork drops, fork bridges, and shock absorbers need to withstand significant forces and impacts; high-quality welds ensure these components will not break or deform during use.

[0024] 2. This impact-resistant dual-suspension bicycle fork features an anodized finish that creates a thicker, denser oxide film, effectively isolating air and moisture. This significantly enhances the corrosion resistance of the fork shoulder, fork tube, and fork bridge, extending their lifespan. The silicone sealing gasket has a low coefficient of friction, reducing friction between the travel tube and fork tube, resulting in smoother fork extension and retraction and improved shock absorption system response. Through the coordinated work of the damping shock absorber and the air fork assembly, it can handle different types of vibrations more precisely. When encountering a large impact, it works in conjunction with the air fork assembly to ensure the fork remains stable during compression and rebound, preventing excessive swaying or bottoming out, thus improving riding safety and handling.

[0025] 3. This impact-resistant dual-damper bicycle fork features through-holes that provide precise mounting positions for the fork tubes, effectively distributing various forces generated during riding, including vertical impacts and lateral forces. This dispersion effectively reduces the risk of deformation of the fork bridge and fork tubes, improving the overall strength and durability of the fork. The shock absorber connects to the head tube via a connecting shackle, allowing the impact force to be transmitted more evenly to other parts of the frame through the head tube, reducing localized pressure on the fork and other components and preventing deformation or damage due to excessive stress. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall right-side three-dimensional structure of this utility model.

[0027] Figure 2 This is a schematic diagram of the shock absorber and fork bridge structure of this utility model.

[0028] Figure 3 This is a three-dimensional structural diagram of the pneumatic front fork assembly of this utility model.

[0029] Figure 4 This is a three-dimensional cross-sectional view of the present invention.

[0030] Figure 5 This is a schematic diagram of the overall rear side view of the three-dimensional structure of this utility model.

[0031] In the diagram: 1. Head tube; 2. Air fork assembly; 3. Fork bridge; 4. Shock absorber; 5. Connecting circlip;

[0032] 201. Fork shoulder; 202. Stroke tube; 203. Fork bucket; 204. Fork foot; 205. Locking switch; 206. Air chamber cover; 207. Sealing gasket. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] Please refer to Figures 1 to 5 This embodiment of an anti-impact dual-shock-absorbing bicycle front fork includes a head tube 1, an air fork assembly 2, a fork bridge 3, and a shock absorber 4. The air fork assembly 2, installed at the bottom of the head tube 1, includes a fork shoulder 201, a travel tube 202, a fork tube 203, and fork feet 204. The travel tube 202 is symmetrically installed at the bottom of the fork shoulder 201. The top of the fork shoulder 201 is provided with a locking switch 205 and an air chamber cover 206. One end of the travel tube 202 is fixedly connected to the bottom of the fork shoulder 201, and the other end is slidably connected to the fork tube 203. The fork tube 203 is fixed to the other end of the travel tube 202 by a sealing gasket 207. The fork feet 204 are welded to the other end of the fork tube 203.

[0035] The fork bridge 3 is installed on the fork bucket 203. The bottom of the fork bridge 3 is welded and fixed to one end of the fork bucket 203. The shock absorber 4 is welded to the top of the fork bridge 3. The top of the shock absorber 4 is fixed to the head tube 1 by a connecting snap ring 5.

[0036] In the above technical solution, the high-pressure air in the stroke tube 202 and fork thimble 203 is used as the damping medium to quickly absorb road impacts, significantly improving riding comfort and handling. The locking switch 205 can lock the fork, disabling its damping function and preventing the damping function from consuming energy when not needed. The air chamber cover 206 is used to protect the internal structure of the air chamber, preventing dust, moisture and foreign objects from entering, reducing wear on internal components and extending the service life of the fork. The shock absorber 4 on the top of the fork bridge 3 can filter out small but frequent vibrations, reducing the degree to which they are transmitted to the handlebars and rider's body. By filtering these vibrations, it helps to maintain good contact between the wheel and the ground and improve tire grip.

[0037] Preferably, the air fork assembly 2 is made of aluminum alloy. In the above technical solution, aluminum alloy has a low density and high strength and rigidity, which can significantly reduce the weight of the air fork and withstand various forces during riding.

[0038] Preferably, the head tube 1, fork legs 204, fork thimble 203, fork bridge 3, and shock absorber 4 are welded using TIG welding. In the above technical solution, TIG welding can provide high-quality welds, ensuring the strength and stability of the welded parts. In the manufacturing of bicycle forks, fork legs 204, fork thimble 203, fork bridge 3, and shock absorber 4 need to withstand large forces and impacts. High-quality welds can ensure that these components will not break or deform during use.

[0039] Please refer to Figure 1 , Figure 2 and Figure 4 The surfaces of the fork shoulder 201, fork barrel 203 and fork bridge 3 are anodized. In the above technical solution, the anodizing treatment can generate a thicker and denser oxide film, which can effectively isolate air and moisture, significantly enhance the corrosion resistance of the fork shoulder 201, fork barrel 203 and fork bridge 3, and extend their service life.

[0040] Preferably, the sealing gasket 207 is made of silicone. In the above technical solution, the silicone sealing gasket 207 has a low coefficient of friction, which can reduce the friction between the stroke tube 202 and the fork 203, making the extension and retraction of the fork smoother and improving the response speed of the shock absorption system.

[0041] Preferably, the shock absorber 4 is a damping shock absorber 4. In the above technical solution, by working together with the air pressure fork assembly 2, the damping shock absorber 4 can handle different types of vibrations more precisely. When encountering a large impact, it works together with the air pressure fork assembly 2 to ensure that the fork remains stable during compression and rebound, avoids excessive shaking or bottoming out, and improves riding safety and handling.

[0042] Please refer to Figure 2 and Figure 3 The bottom of the fork bridge 3 has a through hole for the fork barrel 203 to pass through. In the above technical solution, the through hole provides a precise installation position for the fork barrel 203, which can better distribute various forces generated during riding, including vertical impact force and lateral force. This dispersion effect can effectively reduce the risk of deformation of the fork bridge 3 and fork barrel 203, and improve the overall strength and durability of the fork.

[0043] Preferably, the inner wall of the connecting circlip 5 is connected to the head tube 1. In the above technical solution, the shock absorber 4 is connected to the head tube 1 through the connecting circlip 5. The force generated by the impact can be transmitted more evenly to other parts of the frame through the head tube 1, reducing the local pressure on the fork and other components, and avoiding deformation or damage caused by excessive force.

[0044] Working principle: High-pressure air within the travel tube 202 and fork thimble 203 acts as the damping medium, quickly absorbing road impacts and significantly improving riding comfort and handling. The locking switch 205 can lock the fork, disabling its damping function and preventing energy consumption when not needed. The air chamber cover 206 protects the internal structure of the air chamber, preventing dust, moisture, and foreign objects from entering, reducing wear on internal components, and extending the fork's lifespan. The shock absorber 4 on top of the fork bridge 3 filters out smaller but frequent vibrations, reducing their transmission to the handlebars and rider's body. Filtering these vibrations helps maintain good wheel-to-ground contact, improving tire grip. The aluminum alloy material has low density and high strength and rigidity, significantly reducing the weight of the air fork and withstanding various forces during riding. TIG welding provides high-quality welds, ensuring the strength and stability of the welded areas. In the manufacturing of bicycle forks, the fork legs 204 and fork thimble 203 are crucial components. 3. The fork bridge 3 and shock absorber 4 need to withstand significant forces and impacts. High-quality welds ensure that these components will not break or deform during use. Anodizing treatment generates a thicker and denser oxide film, effectively isolating air and moisture, significantly enhancing the corrosion resistance of the fork shoulder 201, fork barrel 203, and fork bridge 3, and extending their service life. The silicone sealing gasket 207 has a low coefficient of friction, which reduces friction between the stroke tube 202 and fork barrel 203, making the fork extension and retraction smoother and improving the response speed of the shock absorption system. Through the coordinated work of the damping shock absorber 4 and the air fork assembly 2, different types of vibrations can be handled more precisely. When encountering a large impact, it works together with the air fork assembly 2 to ensure that the fork remains stable during compression and rebound, avoiding excessive swaying or bottoming out, improving riding safety and handling. The through hole provides a precise installation position for the fork barrel 203, which can better disperse various forces generated during riding, including vertical impact forces and lateral forces. This dispersion effect can effectively reduce the risk of deformation of the fork bridge 3 and fork drum 203, improve the overall strength and durability of the fork, and the shock absorber 4 is connected to the head tube 1 through the connecting circlip 5. The force generated by the impact can be transmitted more evenly to other parts of the frame through the head tube 1, reducing the local pressure on the fork and other components, and avoiding deformation or damage caused by excessive force.

[0045] 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. An impact-resistant dual-shock-absorbing bicycle fork, comprising a head tube (1), a pneumatic fork assembly (2), a fork bridge (3), and a shock absorber (4), characterized in that, The pneumatic fork assembly (2) is installed at the bottom of the head tube (1). The pneumatic fork assembly (2) includes a fork shoulder (201), a stroke tube (202), a fork barrel (203), and fork feet (204). The stroke tube (202) is symmetrically installed at the bottom of the fork shoulder (201). The top of the fork shoulder (201) is provided with a locking switch (205) and an air chamber cover (206). One end of the stroke tube (202) is fixedly connected to the bottom of the fork shoulder (201), and the other end is slidably connected to the fork barrel (203). The fork barrel (203) is fixed to the other end of the stroke tube (202) by a sealing gasket (207). The fork feet (204) are welded to the other end of the fork barrel (203). The fork bridge (3) is installed on the fork barrel (203), the bottom of the fork bridge (3) is welded to one end of the fork barrel (203), the shock absorber (4) is welded to the top of the fork bridge (3), and the top of the shock absorber (4) is fixed to the head tube (1) by a connecting snap ring (5).

2. The impact-resistant dual-shock-absorbing bicycle fork according to claim 1, characterized in that, The pneumatic fork assembly (2) is made of aluminum alloy.

3. The impact-resistant dual-shock-absorbing bicycle fork according to claim 1, characterized in that, The head tube (1), fork foot (204), fork bucket (203), fork bridge (3) and shock absorber (4) are welded using TIG welding.

4. The impact-resistant dual-shock-absorbing bicycle fork according to claim 1, characterized in that, The surfaces of the fork shoulder (201), fork barrel (203) and fork bridge (3) are anodized.

5. The impact-resistant dual-shock-absorbing bicycle fork according to claim 1, characterized in that, The sealing gasket (207) is made of silicone.

6. The impact-resistant dual-shock-absorbing bicycle fork according to claim 1, characterized in that, The shock absorber (4) is a damping shock absorber (4).

7. The impact-resistant dual-shock-absorbing bicycle fork according to claim 1, characterized in that, The bottom of the fork bridge (3) has a through hole for the fork barrel (203) to pass through.

8. The impact-resistant dual-shock-absorbing bicycle fork according to claim 1, characterized in that, The inner wall of the connecting ring (5) is connected to the head tube (1).

Images