Detachable shoulder cover bicycle suspension fork

Abstract

This utility model relates to the field of bicycle suspension fork technology, and discloses a detachable shoulder cover bicycle suspension fork, including two travel tubes. The top of each travel tube has a shoulder, and each shoulder has a fixed tube connected to its left and right outer walls. The top of each travel tube's outer wall has a threaded groove, and the bottom of each tube has a rotating ring rotatably connected to it. Each rotating ring is threadedly connected to its corresponding threaded groove. The inner wall of the shoulder has a second threaded groove, and the inner wall of the second threaded groove is threadedly connected to the second rotating ring. In this utility model, when installing the shoulder, the tube is aligned with the travel tube, and the shoulder is moved while rotating the first rotating ring to connect with the threaded groove of the travel tube. Simultaneously, the second rotating ring connects the shoulder to the upper tube, providing a foundation for the connection between the fork and the frame. This ensures a secure installation while facilitating installation and disassembly, improving the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of bicycle suspension fork technology, and in particular to a bicycle suspension fork with a detachable shoulder cover. Background Technology

[0002] A bicycle, also known as a pedal bike or cyclist, is a small two-wheeled land vehicle driven by human pedaling. Bicycles are a green, environmentally friendly, convenient, and flexible means of transportation, which can be used for daily commuting as well as fitness and leisure activities. They have the advantages of low cost, simple maintenance, and no energy consumption.

[0003] When a bicycle encounters a bumpy road, the front of the bike will vibrate up and down, which greatly reduces the riding experience. Repeated vibrations can damage the overall frame of the bicycle. In order to reduce the vibration generated by the bicycle when riding on bumpy roads, a bicycle suspension fork is needed.

[0004] Traditional bicycle shock absorption primarily relies on springs. A spring is installed at the bottom of the fork insert. As the fork insert moves downwards, the spring compresses to absorb some energy and dampen vibrations. However, because shock absorption is achieved solely through springs, the rapid compression and rebound of the springs results in less than ideal shock absorption. To achieve smoother shock absorption, existing technology adds a piston to the bottom of the stroke tube and injects hydraulic oil into the fork throttle. As the stroke tube moves downwards, the hydraulic oil below the piston flows to the other side of the piston through a throttle orifice, thus achieving a smoother shock absorption effect. Since the fork shoulder and shoulder cover are integrated in this device, if the fork shoulder is damaged in actual use, the entire fork shoulder and stroke tube must be replaced simultaneously; the fork shoulder cannot be removed separately, reducing the practicality of the device. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a detachable shoulder cover bicycle suspension fork, which aims to improve the problem in the prior art where the fork shoulder and shoulder cover are integrated, and when the fork shoulder is damaged in actual use, only the entire fork shoulder and stroke tube can be replaced at the same time, and the fork shoulder cannot be removed separately, which reduces the practicality of the device.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a detachable shoulder cover bicycle shock-absorbing fork, comprising two travel tubes, with a shoulder at the top of each travel tube, and inserts fixedly connected to the left and right sides of the outer wall of each shoulder. A threaded groove is formed at the top of the outer wall of each of the two travel tubes, and a rotating ring is rotatably connected to the bottom of each insert. Each rotating ring is threadedly connected to its corresponding threaded groove. A threaded groove is formed in the middle of the inner wall of the shoulder, and a rotating ring is threadedly connected to the inner wall of the threaded groove. An upper tube is threadedly connected to the inner wall of the rotating ring. Fork barrels are slidably connected to the middle of the outer walls of each of the two travel tubes, and springs are fixedly connected to the inner walls of each of the two fork barrels. A fork bridge is fixedly connected to the top of each of the two fork barrels. An adjustment component is provided on the inner wall of each of the two travel tubes, and the adjustment component is used to control whether shock absorption is enabled.

[0007] As a further description of the above technical solution:

[0008] The adjusting assembly includes two rotating rods, both rotatably connected to the inner walls of the two stroke tubes. A piston is fixedly connected to the bottom of each of the two rotating rods. Throttling holes are formed around the top of the outer walls of the two pistons. A connecting plate is fixedly connected to the bottom of each of the two throttling holes. Two limiting plates are fixedly connected to the left and right sides of the middle portion of the outer walls of the two rotating rods. Multiple limiting grooves are formed on the left and right sides of the inner walls of the two fork barrels. The multiple limiting plates engage with the corresponding limiting grooves. A hexagonal hole is formed at the top of each rotating rod.

[0009] As a further description of the above technical solution:

[0010] Each of the two fork buckets has a mounting plate fixedly connected to the bottom of an adjacent side, and a disc brake mounting bracket is fixedly connected to the middle of the outer wall of each of the two mounting plates.

[0011] As a further description of the above technical solution:

[0012] Both of the fork barrels have pins fixedly connected to the front bottom of their outer walls, and a connecting rod is fixedly connected between adjacent pins.

[0013] As a further description of the above technical solution:

[0014] An information board is fixedly connected to the middle of the front side of the outer wall of the shoulder. Each of the four sides of the outer wall of the information board is threaded with a screw, and the information board is threaded to the shoulder through the screw.

[0015] As a further description of the above technical solution:

[0016] Each of the two insertion tubes is provided with a mounting cap at its top, and multiple screws are threaded around the outer walls of the two mounting caps. The mounting caps are threaded to the insertion tubes via the screws.

[0017] As a further description of the above technical solution:

[0018] Both of the stroke tubes have sealing gaskets fixedly connected to their bottom outer walls, and both of the rotating rods pass through the corresponding sealing gaskets.

[0019] As a further description of the above technical solution:

[0020] The outer walls of both stroke tubes are provided with multiple scale grooves, which are arranged at equal intervals on the upper and lower sides of the outer walls of the stroke tubes.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when installing the insert, the insert tube is aligned with the stroke tube. While moving the insert, the rotating ring one is rotated to connect with the threaded groove one of the stroke tube. At the same time, the rotating ring two connects the insert to the upper tube, providing a foundation for the connection between the fork and the frame. This ensures a firm installation while facilitating installation and disassembly, making maintenance and component replacement easier, improving overall maintenance convenience, increasing component versatility and replacement flexibility, and solving the problem that when the fork shoulder is damaged, only the entire fork shoulder and stroke tube can be replaced at the same time, and the fork shoulder cannot be removed separately.

[0023] 2. In this utility model, rotating the hexagonal hole drives the rotating rod to rotate, so that the limiting plate can be locked into the limiting groove to prevent the rotating rod from moving up and down in the fork barrel. When shock absorption is not needed, it prevents the fork barrel from moving, provides optional shock absorption function, is easy to operate and is sturdy, improves the overall performance and safety of the bicycle, brings users a better riding experience, and improves the practicality of the device. Attached Figure Description

[0024] Figure 1 This is a perspective view of the detachable shoulder cover bicycle shock-absorbing front fork proposed in this utility model;

[0025] Figure 2 This is a partial structural exploded view of the detachable shoulder cover bicycle suspension fork proposed in this utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A;

[0027] Figure 4 This is a schematic diagram of the adjustment component for the detachable shoulder cover bicycle shock absorber fork proposed in this utility model.

[0028] Figure 5This is a cross-sectional view of the fork barrel of the detachable shoulder cover bicycle suspension fork proposed in this utility model.

[0029] Legend:

[0030] 1. Stroke tube; 2. Adjustment assembly; 201. Rotating rod; 202. Piston; 203. Throttling orifice; 204. Connecting plate; 205. Limiting plate; 206. Limiting groove; 207. Hexagonal hole; 3. Shoulder; 4. Insert tube; 5. Threaded groove one; 6. Rotating ring one; 7. Threaded groove two; 8. Rotating ring two; 9. Top tube; 10. Fork bucket; 11. Mounting plate; 12. Disc brake mounting base; 13. Pin; 14. Connecting rod; 15. Information plate; 16. Screw one; 17. Mounting cover; 18. Screw two; 19. Sealing gasket; 20. Scale groove; 21. Spring; 22. Fork bridge. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a detachable shoulder cover bicycle suspension fork, comprising two travel tubes 1, which are the main support structure of the fork and provide mounting positions for other components. The tops of the two travel tubes 1 are provided with inserts 3, which connect the two travel tubes 1 and serve to connect other components on the frame. Inserts 4 are fixedly connected to the left and right sides of the outer wall of the inserts 3, which connect the inserts 3 and the travel tubes 1, enhancing the stability and reliability of the connection. The tops of the outer walls of both travel tubes 1 are provided with threaded grooves 5, and the bottoms of both inserts 4 are rotatable. A rotating ring 6 is connected to the insert 3. Both rotating rings 6 are threadedly connected to the corresponding threaded grooves 5. When installing the insert 3, align the insert tube 4 with the travel tube 1, rotate the rotating ring 6 to thread it into the threaded groove 5, thereby fixing the insert 3 onto the travel tube 1. A threaded groove 7 is provided in the middle of the inner wall of the insert 3. A rotating ring 8 is threadedly connected to the inner wall of the threaded groove 7. An upper tube 9 is threadedly connected to the inner wall of the rotating ring 8. When installing the upper tube 9, screw the rotating ring 8 into the threaded groove 7, and then thread the upper tube 9 onto the rotating ring 8, thereby fixing the upper tube 9 onto the insert 3. On shoulder 3, fork barrels 10 are slidably connected to the middle of the outer walls of the two travel tubes 1. Springs 21 are fixedly connected to the inner walls of the two fork barrels 10. The fork barrels 10 provide installation space for the springs 21 and slide relative to the travel tubes 1 during shock absorption, realizing the compression and rebound of the springs 21. Fork bridges 22 are fixedly connected to the top of the two fork barrels 10. Fork bridges 22 are used to fix the two fork barrels 10, prevent the distance between the two fork barrels 10 from changing, and enhance the overall structural stability of the fork. Adjustment components 2 are provided on the inner walls of the two travel tubes 1; the adjustment components 2 are used to control whether shock absorption is used. Mounting plates 11 are fixedly connected to the bottom of adjacent sides of the two fork barrels 10. Disc brake mounts 12 are fixedly connected to the middle of the outer wall of the two mounting plates 11. The mounting plates 11 provide an installation position for the disc brake mounts 12. The disc brake mounts 12 are used to install the disc brake system of the bicycle to realize the braking function. Pins 13 are fixedly connected to the front side of the bottom of the outer wall of the two fork barrels 10. A connecting rod 14 is fixedly connected between the adjacent pins 13. The pins 13 are used to install the mudguard of the front fork. The connecting rod 14 connects the two pins 13 to enhance the structural stability of the pins 13.

[0033] Specifically, when installing the shoulder 3, align the two insert tubes 4 with the two travel tubes 1, and while moving the shoulder 3 downward, rotate the rotating ring 6. The rotating ring 6 is threadedly connected to the threaded groove 5, thus connecting the shoulder 3 and the insert tubes 4. The inner wall of the shoulder 3 has a threaded groove 7, which is threadedly connected to the rotating ring 8 in the middle. The rotating ring 8 is then threadedly connected to the upper tube 9, reliably mounting the upper tube 9 onto the shoulder 3. The upper tube 9 can then be further connected to the bicycle frame and other related components, providing a foundation for the entire fork and transmitting forces from the frame while bearing various loads during riding. The travel tube 1 can slide on the inner wall of the fork cassette 10. The fork bridge 22 is used to fix the two fork cassettes 10, preventing changes in the distance between them. When the bicycle encounters bumpy road conditions, the fork... The fork 10 slides relative to the travel tube 1. At this time, the spring 21 inside the fork 10 is compressed. The spring 21 absorbs and buffers this impact force by its own elastic deformation, converting the originally violent impact force into the elastic potential energy of the spring 21, and preventing the impact force from being directly transmitted to the frame and the rider, thereby achieving the effect of shock absorption. The mounting base 17 provides the mounting base for the disc brake mounting base 12 and determines the position of the disc brake mounting base 12. The disc brake mounting base 12 is used to install disc brakes and provide braking for the bicycle. The pin 13 is used to install the mudguard. By cooperating with the appropriate connector with the pin 13, the mudguard can be fixed in the corresponding position of the fork. The connecting rod 14 enhances the connection strength and overall structural stability between the two pins 13, so that the pin 13 can remain stable when bearing the weight of the mounting components and the external forces during riding.

[0034] Reference Figure 4 and Figure 5The adjusting assembly 2 includes two rotating rods 201, both rotatably connected to the inner walls of the two stroke tubes 1. The rotating rods 201 are key components in the adjusting assembly 2 for manual operation, transmitting externally applied rotational force to other connected components. Pistons 202 are fixedly connected to the bottom of each of the two rotating rods 201. Throttling orifices 203 are provided around the top of the outer walls of both pistons 202. The throttling orifices 203 are mainly used to control the flow velocity and flow rate of the medium inside the fork bucket 10 between different areas above and below the pistons 202, and are an important structure for adjusting the shock absorber's damping characteristics. A connecting plate 204 is fixedly connected to the bottom of each of the two rotating rods 201 and the stroke tube 1. The connecting plate 204 is fixedly connected to the spring 21 and is used to evenly transmit the elastic force of the spring 21 to the rotating rod 201 and the stroke tube 1. Two limiting plates 205 are fixedly connected to the left and right sides of the middle of the outer wall of each of the two rotating rods 201. Multiple limiting grooves 206 are opened on the left and right sides of the inner wall of each of the two fork barrels 10. The multiple limiting plates 205 are engaged with the corresponding limiting grooves 206. The limiting plates 205 are rotated into the limiting grooves 206 to fix the rotating rod 201 and prevent the rotating rod 201 from moving up and down. A hexagonal hole 207 is opened on the top of the rotating rod 201. The rotating rod 201 can be quickly rotated by rotating the hexagonal hole 207 using a tool. A sealing gasket 19 is fixedly connected to the bottom of the outer wall of each of the two stroke tubes 1. The two rotating rods 201 pass through the corresponding sealing gasket 19. The sealing gasket 19 can effectively prevent hydraulic oil from leaking out from the gap between the rotating rod 201 and the stroke tube 1.

[0035] Specifically, the throttle orifice 203 can control the flow speed and flow rate of the medium between different areas above and below the piston 202, making the vibration damping operation more stable and controllable. When the vibration damping effect is not needed, the rotating rod 201 is rotated by rotating the hexagonal hole 207, thereby causing the limiting plate 205 to be locked into the limiting groove 206, fixing the limiting plate 205, preventing the rotating rod 201 from moving up and down, achieving locking, and preventing the fork bucket 10 from moving up and down. In addition, the bottom of the connecting plate 204 contacts the spring 21, so that the connecting plate 204 can be evenly subjected to the elastic force of the spring 21 when the device is damping. The sealing gasket 19 can effectively prevent hydraulic oil from leaking out from the gap between the rotating rod 201 and the stroke tube 1.

[0036] Reference Figure 1 , Figure 2 and Figure 3An information plate 15 is fixedly connected to the center of the front side of the outer wall of the shoulder 3. Screws 16 are threaded around the outer perimeter of the information plate 15, which is threaded to the shoulder 3 via screws 16. The information plate 15 displays various important information about the bicycle's suspension fork, allowing users to easily obtain relevant fork information. Mounting caps 17 are installed at the top of both insertion tubes 4. Multiple screws 18 are threaded around the outer perimeter of the two mounting caps 17, which are threaded to the insertion tubes 4 via screws 18. The mounting caps are connected to the rotating... The top of the rod 201 engages to prevent the rotating rod 201 from rotating, and the mounting cover 17 is connected to the insertion tube 4 by screw 18, so that the mounting cover 17 can be stably fixed on the insertion tube 4; the outer walls of the two stroke tubes 1 are provided with multiple scale grooves 20, which are arranged equidistantly on the upper and lower sides of the outer wall of the stroke tube 1. The scale grooves 20 are used to visually display the extension and contraction of the stroke tube 1 during use. By observing the corresponding position of the scale grooves 20, the degree of adjustment can be accurately determined, which makes it convenient for users to accurately grasp the adjustment amount;

[0037] Specifically, the information panel 15 is used to display various important information about the bicycle's suspension fork, allowing users to intuitively obtain relevant information about the fork; the mounting cover 17 engages with the top of the rotating rod 201 to prevent the rotating rod 201 from rotating, and the mounting cover 17 is connected to the insertion tube 4 by screw 18, so that the mounting cover 17 can be stably fixed on the insertion tube 4; the scale groove 20 is used to intuitively display the extension and retraction of the travel tube 1 during use. By observing the corresponding position of the scale groove 20, the degree of adjustment can be accurately determined, making it convenient for users to accurately grasp the adjustment amount, and also helping to provide an intuitive reference for checking the working status of the fork and judging whether there is any abnormal extension and retraction.

[0038] Working principle: When installing the shoulder 3, align the two insert tubes 4 with the two stroke tubes 1. While moving the shoulder 3 downward, rotate the rotating ring 6. The rotating ring 6 is threadedly connected to the threaded groove 5 on the top of the outer wall of the stroke tube 1, so that the shoulder 3 and the insert tube 4 can be firmly connected to the stroke tube 1, and it is also easy to disassemble. The rotating ring 8 is threadedly connected to the threaded groove 7, and the rotating ring 8 is also threadedly connected to the upper tube 9, ensuring that the upper tube 9 can be reliably installed on the shoulder 3, providing a foundation for the entire fork to connect with bicycle frame and other related components. When disassembly is required, the upper tube 9 can be easily removed from the shoulder 3 by rotating the upper tube 9 and the rotating ring 8 in reverse order, as well as the threaded connection between the rotating ring 8 and the shoulder 3.

[0039] Furthermore, the flow rate and volume of the medium in different areas above and below the piston 202 can be controlled through the throttle orifice 203, making the vibration damping operation more stable and controllable. The bottom of the connecting plate 204 contacts the spring 21, so that the connecting plate 204 can be evenly subjected to the elastic force of the spring 21 when the device is damping. The sealing gasket 19 can effectively prevent hydraulic oil from leaking out from the gap between the rotating rod 201 and the stroke tube 1. When the damping effect is not needed, the rotating rod 201 is rotated by rotating the hexagonal hole 207, thereby driving the limiting plate 205 to be locked into the limiting groove 206, fixing the limiting plate 205, preventing the rotating rod 201 from moving up and down, achieving locking, and preventing the fork bucket 10 from moving up and down.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Detachable shoulder cap bicycle shock absorbing front fork, comprising two stroke tubes (1), characterized in that: The top of each of the two travel tubes (1) is provided with a shoulder (3), and the outer walls of the shoulder (3) are fixedly connected with tubes (4) on both sides. The top of the outer walls of each of the two travel tubes (1) is provided with a threaded groove (5). The bottom of each of the two tubes (4) is rotatably connected with a rotating ring (6). The two rotating rings (6) are threadedly connected to the corresponding threaded groove (5). The inner wall of the shoulder (3) is provided with a threaded groove (7). The inner wall of the two stroke tubes (1) is threaded with a rotating ring (8), and the inner wall of the rotating ring (8) is threaded with an upper tube (9). The middle of the outer wall of each stroke tube (1) is slidably connected with a fork barrel (10). The inner wall of each fork barrel (10) is fixedly connected with a spring (21). The top of each fork barrel (10) is fixedly connected with a fork bridge (22). The inner wall of each stroke tube (1) is provided with an adjustment component (2). The adjustment component (2) is used to control whether to reduce vibration.

2. The dismountable crown suspension bicycle front fork according to claim 1, characterized in that: The adjustment assembly (2) includes a rotating rod (201), two rotating rods (201) are rotatably connected to the inner walls of the two stroke tubes (1), pistons (202) are fixedly connected to the bottom of the two rotating rods (201), throttling holes (203) are opened around the top of the outer walls of the two pistons (202), connecting plates (204) are fixedly connected to the bottom of the two throttling holes (203), two limiting plates (205) are fixedly connected to the left and right sides of the middle part of the outer walls of the two rotating rods (201), multiple limiting grooves (206) are opened on the left and right sides of the inner walls of the two fork barrels (10), and multiple limiting plates (205) are engaged with the corresponding limiting grooves (206). A hexagonal hole (207) is opened at the top of the rotating rod (201).

3. The dismountable crown suspension bicycle front fork of claim 1, wherein: Mounting plates (11) are fixedly connected to the bottom of adjacent sides of the two fork buckets (10), and disc brake mounting seats (12) are fixedly connected to the middle of the outer walls of the two mounting plates (11).

4. The dismountable crown suspension bicycle front fork of claim 1, wherein: Both of the fork buckets (10) have pins (13) fixedly connected to the front side of the bottom of their outer walls, and connecting rods (14) are fixedly connected between adjacent pins (13).

5. The demountable crown suspension bicycle front fork of claim 1, wherein: An information plate (15) is fixedly connected to the middle of the front side of the outer wall of the insert (3). Screws (16) are threaded around the outer wall of the information plate (15). The information plate (15) is threaded to the insert (3) through the screws (16).

6. The dismountable crown suspension bicycle front fork of claim 1, wherein: The top of each of the two insertion tubes (4) is provided with an installation cover (17), and the outer walls of the two installation covers (17) are threaded with a plurality of screws (18). The installation cover (17) is threaded to the insertion tube (4) through the screws (18).

7. The dismountable crown suspension bicycle front fork of claim 2, wherein: Both of the two travel tubes (1) have sealing gaskets (19) fixedly connected to the bottom of their outer walls, and both of the two rotating rods (201) pass through the corresponding sealing gaskets (19).

8. The dismountable crown suspension bicycle front fork of claim 1, wherein: The outer walls of the two travel tubes (1) are provided with a plurality of scale grooves (20), and the plurality of scale grooves (20) are arranged at equal intervals on the upper and lower sides of the outer walls of the travel tubes (1).

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