Concealed wiring of a bicycle suspension fork

CN224829447UActive Publication Date: 2026-10-09RONGLUN MACHINERY (KUNSHAN) CO LTD
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Patent Information

Application Number
CN202521514420.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-20
Publication Date
2026-10-09
Estimated Expiration
2035-07-20

AI Technical Summary

Technical Problem

[0002]在日常城市骑行中,频繁的启停与转向,使线管极易与周围的建筑和交通设施或其他车辆发生刮擦碰撞,导致线管外皮破损,内部线缆受到损伤,进而影响刹车与变速系统的精准性与可靠性,所以需要用到隐藏式线管布线自行车避震前叉

Benefits of technology

[0021]1、本实用新型中,通过叉桶外壁左右侧设置的半圆套管,为连接线管提供藏身之所,将线管隐匿于其中,线管被隐藏在半圆套管、连接柱和连接管一内,能够有效避免阳光直射,长时间的阳光暴晒会使线管外皮老化、变脆,容易开裂,而隐藏式大大降低了线管因紫外线辐射而损坏的风险。

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Abstract

The utility model relates to bicycle technical field discloses hidden type line pipe wiring bicycle shock absorbing front fork, including two fork buckets, the outer wall top of two fork buckets all is fixedly connected with fork bridge, the top of two fork buckets all is connected with stroke pipe, the outer wall of two stroke pipes all is fixedly connected with the shoulder, the other end of two shoulders all is fixedly connected with upper pipe no.
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Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to a concealed conduit wiring bicycle shock absorber fork. Background Technology

[0002] In daily urban cycling, frequent starts, stops, and turns make the cable conduit extremely prone to scraping and colliding with surrounding buildings, traffic facilities, or other vehicles, resulting in damage to the outer sheath of the conduit and the internal cables. This, in turn, affects the accuracy and reliability of the braking and shifting systems. Therefore, a concealed cable conduit fork is needed for bicycle suspension.

[0003] Concealed cable routing bicycle suspension forks conceal the derailleur cables or hydraulic lines within the fork by constructing internal cable channels or enlarging the bearings on the headset and reducing the size of the steerer tube. Currently, when problems arise with the cables—such as internal cable breakage, wear, or blockage—repair becomes extremely complex. Repair personnel need to disassemble parts of the fork to access the concealed cables, increasing workload and costs. Existing solutions involve manufacturing channels in the bicycle suspension fork that directly lead to key parts of the concealed cables. When problems occur, repair personnel can quickly locate and address cable faults through these channels without extensive disassembly of the fork. However, to avoid affecting the overall structural strength and appearance of the fork, these channels are often quite narrow, limiting the size of repair tools and operational flexibility. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a concealed conduit wiring bicycle shock absorber fork, which aims to improve the problem that the space is often relatively narrow in order not to affect the overall structural strength and appearance of the fork, which limits the size of maintenance tools and the flexibility of operation.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a concealed conduit wiring bicycle shock absorber fork, comprising two fork barrels, a fork bridge fixedly connected to the top of the outer wall of each fork barrel, a travel tube slidably connected to the top of each fork barrel, a shoulder fixedly connected to the outer wall of each travel tube, an upper tube fixedly connected to the other end of each shoulder, semi-circular sleeves provided on the left and right sides of the outer wall of each fork barrel, connecting conduits provided on the inner wall of each semi-circular sleeve, connecting posts fixedly connected to the rear side of the outer wall of each fork barrel, connecting conduits connected to adjacent sides of each connecting post, the other end of each connecting conduit passing through the top of the inner wall of the connecting conduit and fixedly connected to the upper tube, a folding mechanism provided on the top of the upper tube for folding.

[0006] As a further description of the above technical solution:

[0007] The folding mechanism includes a connecting plate, the bottom of which is fixedly connected to the top of the first upper tube. Fixing blocks are fixedly connected to the front and rear ends of the top left side of the connecting plate. The two fixing blocks are rotatably connected to the second upper tube on their adjacent sides. A fixing plate is fixedly connected to the bottom right side of the outer wall of the second upper tube. Locks are fixedly connected to the front and rear ends of the top right side of the connecting plate. A folding handle is rotatably connected to the middle of the top right side of the connecting plate.

[0008] As a further description of the above technical solution:

[0009] Both of the fork barrels are fixedly connected to the front bottom of the fork legs, and each of the two fork legs is fixedly connected to a connecting pipe.

[0010] As a further description of the above technical solution:

[0011] The two fork barrels are provided with connecting grooves on the left and right sides of their outer walls, and the inner walls of the two connecting grooves are fixedly connected to the semi-circular sleeve.

[0012] As a further description of the above technical solution:

[0013] The front side of the outer wall of both fork barrels is provided with a groove, and the inner wall of both grooves is fixedly connected with a reflective sticker.

[0014] As a further description of the above technical solution:

[0015] The top of the upper tube is provided with a stop, the top of the stop is provided with a lower bearing, the top of the lower bearing is provided with an upper bearing, the top of the upper bearing is provided with an upper stop, and the top of the upper stop is provided with a bowl assembly cover.

[0016] As a further description of the above technical solution:

[0017] The top of the bowl assembly lid is decorated with a sunflower, and the center of the sunflower is decorated with a top cover.

[0018] As a further description of the above technical solution:

[0019] The bottom of the top cover is fixedly connected to a screw, and the top of the screw is fixedly connected to a dust cover.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the semi-circular sleeves set on the left and right sides of the outer wall of the fork bucket provide a place to hide the connecting pipe, concealing the pipe within them. The pipe is hidden inside the semi-circular sleeve, the connecting post, and the connecting pipe, which can effectively prevent direct sunlight. Prolonged exposure to sunlight will cause the outer sheath of the pipe to age, become brittle, and easily crack. The concealed design greatly reduces the risk of damage to the pipe due to ultraviolet radiation.

[0022] 2. In this utility model, the upper tube two is rotatably connected to the connecting plate by a fixing block, so that the upper tube two can rotate flexibly around the fixing point. This rotatable connection method provides a basis for the folding of the bicycle. When the bicycle needs to be folded, the upper tube two can be adjusted at an angle relative to the connecting plate, thereby effectively reducing the space occupied by the bicycle when it is stored or carried. Attached Figure Description

[0023] Figure 1 A perspective view of the concealed conduit wiring bicycle suspension fork proposed in this utility model;

[0024] Figure 2 This is a front view of the concealed conduit wiring bicycle suspension fork proposed in this utility model.

[0025] Figure 3 This is a side view of the folding mechanism of the concealed wiring bicycle suspension fork proposed in this utility model.

[0026] Figure 4 This is a partial structural diagram of the concealed conduit wiring bicycle shock absorber fork proposed in this utility model;

[0027] Figure 5 This is a partial structural diagram of the concealed conduit wiring bicycle suspension fork proposed in this utility model;

[0028] Figure 6 This is a partial structural exploded view of the concealed conduit wiring bicycle suspension fork proposed in this utility model.

[0029] Legend:

[0030] 1. Fork bucket; 2. Folding mechanism; 201. Connecting plate; 202. Fixing block; 203. Upper tube two; 204. Lock; 205. Folding handle; 206. Fixing plate; 3. Fork bridge; 4. Travel tube; 5. Shoulder; 6. Upper tube one; 7. Semi-circular sleeve; 8. Connecting conduit; 9. Connecting post; 10. Connecting tube one; 11. Fork foot; 12. Connecting tube two; 13. Connecting groove; 14. Groove; 15. Reflective sticker; 16. Stop; 17. Lower bearing; 18. Upper bearing; 19. Upper stop; 20. Headset cover; 21. Sunflower pattern; 22. Top cover; 23. Screw; 24. Dust cover. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 3 and Figure 4 An embodiment of this utility model provides a concealed conduit wiring bicycle shock absorber fork, including two fork barrels 1, fork bridges 3 fixedly connected to the top of the outer wall of each fork barrel 1, travel tubes 4 slidably connected to the top of each fork barrel 1, inserts 5 fixedly connected to the outer wall of each travel tube 4, and upper tube 6 fixedly connected to the other end of each insert 5. Semicircular sleeves 7 are provided on the left and right sides of the outer wall of each fork barrel 1, connecting conduits 8 are provided on the inner wall of each semicircular sleeve 7, connecting posts 9 are fixedly connected to the rear side of the outer wall of each fork barrel 1, and connecting conduits 10 are connected to the adjacent side of each connecting post 9. The other end of each connecting conduit 8 passes through the top of the inner wall of the connecting conduit 10 and is fixedly connected to the upper tube 6. A folding mechanism 2 is provided on the top of the upper tube 6 for folding.

[0033] Specifically, the two fork barrels 1 are the main support structure of the entire fork, bearing various forces from the road surface. The fork bridge 3 is firmly fixedly connected to the top of the outer wall of the two fork barrels 1. The fork bridge 3 tightly connects the two fork barrels 1, greatly enhancing the stability of the overall structure of the fork and ensuring that the fork can withstand stresses in different directions without deformation during riding. The top of each of the two fork barrels 1 is slidably connected to the travel tube 4. The outer wall of each of the two travel tubes 4 is fixedly connected to the shoulder 5. The other end of the shoulder 5 is connected to the top tube 6, which is responsible for connecting to other parts of the bicycle frame, thus organically combining the fork with the structure of the whole bicycle. Semi-circular sleeves 7 are respectively set on the left and right sides of the outer wall of the two fork barrels 1 to hide the connecting cable tube 8. The rear side of the outer wall of the two fork barrels 1 is fixedly connected to the connecting post 9. The adjacent side of the two connecting posts 9 is connected to the connecting tube 10, so that the connecting cable tube 8 is hidden in the connecting post 9 and the connecting tube 10.

[0034] Reference Figure 1 , Figure 2 and Figure 3The folding mechanism 2 includes a connecting plate 201. The bottom of the connecting plate 201 is fixedly connected to the top of the upper tube 6. Fixing blocks 202 are fixedly connected to the front and rear ends of the top left side of the connecting plate 201. The upper tube 203 is rotatably connected to the adjacent side of the two fixing blocks 202. A fixing plate 206 is fixedly connected to the bottom right side of the outer wall of the upper tube 203. Locks 204 are fixedly connected to the front and rear ends of the top right side of the connecting plate 201. A folding handle 205 is rotatably connected to the middle of the top right side of the connecting plate 201.

[0035] Specifically, the connecting plate 201 has fixing blocks 202 at the front and rear ends of the top left side. The fixing blocks 202 are used to rotatably connect the upper tube 203. The upper tube 203 can rotate around the fixing blocks 202 to achieve the folding function. The bottom right side of the outer wall of the upper tube 203 is fixedly connected to a fixing plate 206. The fixing plate 206 will cooperate with other components during the folding process to play a positioning and fixing role. At the same time, the connecting plate 201 has locking buckles 204 at the front and rear ends of the top right side. The middle part is rotatably connected to a folding handle 205. The locking buckles 204 are used to lock the upper tube 203 when the bicycle is in normal riding state to ensure the stability of the structure. The folding handle 205 is the component used to operate the folding process. By rotating the folding handle 205, the locking buckles 204 can be released from locking the upper tube 203.

[0036] Reference Figure 3 , Figure 5 and Figure 6 Both fork barrels 1 are fixedly connected to the bottom front side with fork legs 11, and both fork legs 11 are fixedly connected to the adjacent side with connecting pipes 12; both outer walls of both fork barrels 1 are provided with connecting grooves 13 on the left and right sides, and the inner walls of the two connecting grooves 13 are fixedly connected to the semi-circular sleeves 7; both outer walls of both fork barrels 1 are provided with grooves 14 on the front side, and the inner walls of the two grooves 14 are fixedly connected with reflective stickers 15.

[0037] Specifically, the fork legs 11 on the front side of the bottom of the two fork legs 1 are important components for connecting the wheels. The connecting tube 2 12 fixedly connected to the adjacent side of the fork legs 11 is mainly used to install the wheel axle. When the wheel is installed in the connecting tube 2 12, the connecting tube 2 12 can provide a stable support point for the wheel. During the installation process, the semi-circular sleeve 7 can be accurately embedded in the connecting groove 13. Through the limiting effect of the connecting groove 13, the semi-circular sleeve 7 can maintain a stable position. The groove 14 on the front side of the outer wall of the fork leg 1 is used to fix the reflective sticker 15. The reflective sticker 15 can reflect light at night or in low light conditions. When light shines on the reflective sticker 15, the reflective sticker 15 reflects the light back through the optical structure, making the bicycle more visible on the road.

[0038] Reference Figure 4 , Figure 5 and Figure 6The top of the upper tube 203 is provided with a stop 16, the top of the stop 16 is provided with a lower bearing 17, the top of the lower bearing 17 is provided with an upper bearing 18, the top of the upper bearing 18 is provided with an upper stop 19, the top of the upper stop 19 is provided with a cup assembly cover 20; the top of the cup assembly cover 20 is provided with a sunflower 21, the middle of the sunflower 21 is provided with a top cover 22; the bottom of the top cover 22 is fixedly connected with a screw 23, and the top of the screw 23 is fixedly connected with a dust cover 24.

[0039] Specifically, the upper tube 203 is an important component of the bicycle frame. The stop 16 at its top provides initial support and positioning. The lower bearing 17 above the stop 16 cooperates with the upper bearing 18. The upper bearing 18 allows the upper component to rotate flexibly relative to the lower component. The upper stop 19 above the upper bearing 18 is used to limit the axial displacement of the upper bearing 18, ensuring that it is in the normal working position. The headset cover 20 covers the upper stop 19, which protects the internal components and enhances the overall aesthetics. The sunflower 21 on the top of the headset cover 20 is mainly used to distribute pressure, so that the force can be evenly distributed around. The top cover 22 is located in the middle of the sunflower 21 and works with the sunflower 21 to provide a stable support base for the screw 23. The screw 23 is used to fasten the entire structure and ensure that all components are tightly connected. The dust cover 24 prevents dust and impurities from entering the internal structure and extends the service life of each component.

[0040] Working principle: The fork 1 serves as the main support structure of the fork, bearing the vertical force from the road surface. The fork bridge 3 connects the two fork 1s, tightly integrating them into a whole. When the fork 1s are subjected to stress from different directions, the fork bridge 3 can distribute the stress to the two fork 1s, preventing excessive local stress on a single fork 1 and deformation. The shoulder 5 connects the travel tube 4 and the top tube 6, serving as a force transmission and structural connection. During shock absorption, the movement of the travel tube 4 is transmitted to the top tube 6 through the shoulder 5, transferring vibration and force to other parts of the bicycle frame. At the same time, the connection between the shoulder 5 and the top tube 6 ensures the organic integration of the fork with the overall bicycle structure, allowing the entire bicycle to operate as a coordinated whole during riding. The semi-circular sleeve 7 is located on the left and right sides of the outer wall of the fork 1, providing a hidden and protected space for the connecting cable conduit 8. The semi-circular sleeve 7 can prevent the cable conduit from being scratched, bumped, or corroded by rainwater.

[0041] Furthermore, when the bicycle needs to be folded, the rider first turns the folding handle 205. The rotation of the folding handle 205 will drive the unlocking mechanism of the latch 204, causing the latch 204 to release its lock on the upper tube 203. As the latch 204 is unlocked, the upper tube 203 can rotate around the fixing block 202. Since there is a fixing plate 206 on the bottom right side of the outer wall of the upper tube 203, during the rotation, the fixing plate 206 will move to a specific position with the rotation of the upper tube 203, so that the upper tube 203 will gradually rotate to one side of the bicycle until it is parallel to the upper tube 6, thereby realizing the folding of the bicycle frame, which facilitates the storage and transportation of the bicycle.

[0042] 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. A concealed cable routing bicycle suspension fork, comprising two fork hoppers (1), characterized in that: The top of the outer wall of each of the two fork barrels (1) is fixedly connected to a fork bridge (3), the top of each of the two fork barrels (1) is slidably connected to a stroke tube (4), the outer wall of each of the two stroke tubes (4) is fixedly connected to a shoulder (5), the other end of each of the two shoulders (5) is fixedly connected to an upper tube (6), the left and right sides of the outer wall of each of the two fork barrels (1) are provided with semi-circular sleeves (7), the inner walls of each of the two semi-circular sleeves (7) are provided with connecting pipes (8), the rear side of the outer wall of each of the two fork barrels (1) is fixedly connected to a connecting post (9), the adjacent side of each of the two connecting posts (9) is connected to a connecting pipe (10), the other end of each of the two connecting pipes (8) passes through the top of the inner wall of the squirrel connecting pipe (10) and is fixedly connected to the upper tube (6), the top of the upper tube (6) is provided with a folding mechanism (2), the folding mechanism (2) is used for folding.

2. The concealed conduit wiring bicycle suspension fork according to claim 1, characterized in that: The folding mechanism (2) includes a connecting plate (201), the bottom of which is fixedly connected to the top of the upper tube (6). The front and rear ends of the top left side of the connecting plate (201) are fixedly connected to fixing blocks (202). The adjacent sides of the two fixing blocks (202) are rotatably connected to the upper tube (203). The bottom right side of the outer wall of the upper tube (203) is fixedly connected to a fixing plate (206). The front and rear ends of the top right side of the connecting plate (201) are fixedly connected to a latch (204). The middle right side of the top of the connecting plate (201) is rotatably connected to a folding handle (205).

3. The concealed conduit wiring bicycle suspension fork according to claim 1, characterized in that: Both of the fork barrels (1) are fixedly connected to the front bottom of the two fork legs (1), and both of the two fork legs (11) are fixedly connected to the adjacent side of the two fork legs (12).

4. The concealed conduit wiring bicycle suspension fork according to claim 1, characterized in that: The two fork barrels (1) have connecting grooves (13) on their left and right sides, and the inner walls of the two connecting grooves (13) are fixedly connected to the semi-circular sleeve (7).

5. The concealed conduit wiring bicycle suspension fork according to claim 1, characterized in that: The front side of the outer wall of each of the two fork barrels (1) is provided with a groove (14), and the inner wall of each of the two grooves (14) is fixedly connected with a reflective sticker (15).

6. The concealed conduit wiring bicycle suspension fork according to claim 2, characterized in that: The top of the upper tube (203) is provided with a stop (16), the top of the stop (16) is provided with a lower bearing (17), the top of the lower bearing (17) is provided with an upper bearing (18), the top of the upper bearing (18) is provided with an upper stop (19), and the top of the upper stop (19) is provided with a bowl assembly cover (20).

7. The concealed conduit wiring bicycle suspension fork according to claim 6, characterized in that: The top of the bowl assembly cover (20) is provided with a sunflower (21), and the middle of the sunflower (21) is provided with a top cover (22).

8. The concealed conduit wiring bicycle suspension fork according to claim 7, characterized in that: The bottom of the top cover (22) is fixedly connected to a screw (23), and the top of the screw (23) is fixedly connected to a dust cover (24).