A motorcycle rocker bar link structure with adjustable length
By using an adjustable-length motorcycle rocker arm tie rod structure, the problem of fixed-length limitations on the adaptability of the suspension system is solved, enabling flexible adjustment of the tie rod length and improving handling performance and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIHAI HUANUO LIGHT ALLOY MFG CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-06-26
AI Technical Summary
Existing motorcycle rocker arm linkages are designed with a fixed length, which cannot be adjusted according to road conditions or driving needs, limiting the adaptability of the suspension system and affecting handling performance and load-bearing capacity.
The motorcycle rocker arm pull rod adopts an adjustable length structure. Through the combination of a fixed rod and a movable rod, the length of the pull rod can be infinitely adjusted by using structures such as a telescopic rod, locking groove, locking block, and threaded ring. The limit block and positioning rod ensure the accuracy and stability of the adjustment.
It enables flexible adjustment of the tie rod length, improves the adaptability of the suspension system, enhances handling performance and safety, and ensures structural stability and ease of installation.
Smart Images

Figure CN224409513U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motorcycle accessories, and in particular to an adjustable length motorcycle rocker arm tie rod structure. Background Technology
[0002] The swingarm tie rod is a crucial component of the motorcycle's rear suspension system. It primarily connects the frame to the swingarm, providing support and stability for the rear wheel. Its structural design and performance directly impact the motorcycle's handling, comfort, and safety.
[0003] Most existing motorcycle rocker arm linkages are designed with a fixed length, which cannot be adjusted according to road conditions or driving needs, severely limiting the adaptability of the suspension system. Although this rigid structure is simple and reliable, it prevents the vehicle from flexibly optimizing its handling performance or load-bearing capacity. Summary of the Invention
[0004] In view of this, the present invention provides an adjustable length motorcycle rocker arm tie rod structure. The main technical problem to be solved is that the existing motorcycle rocker arm tie rods are mostly designed with a fixed length, which cannot be adjusted according to road conditions or driving needs, which seriously limits the adaptability of the suspension system. Although this rigid structure is simple and reliable, it makes it impossible for the vehicle to flexibly optimize its handling performance or load-bearing performance.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: an adjustable length motorcycle rocker arm pull rod structure, including a fixed rod, a movable rod at one end of the fixed rod, a telescopic rod fixedly connected to one end of the movable rod, a locking groove on the outer wall of the telescopic rod, the telescopic rod being located inside the fixed rod, a telescopic groove on the inner wall of the fixed rod, and multiple telescopic grooves, with telescopic blocks arranged inside the multiple telescopic grooves, a locking block fixedly connected to the outer wall of one end of the telescopic block, the locking block being located inside the locking groove, a baffle fixedly connected to the outer wall of the locking block, and two baffles, a fixed ring fixedly connected to the outer wall of the end of the fixed rod, a movable ring sleeved on the outer wall of the fixed rod, a locking ring fixedly connected to the outer wall of the movable ring, the locking ring being located inside the fixed ring, a thread on the outer wall of the fixed rod, and a threaded ring threadedly connected to the threaded outer wall of the fixed rod.
[0006] By adopting the above technical solution, the stepless adjustment function of the rod length is realized. Through the sliding and locking mechanism of the telescopic rod in the fixed rod, the adjustment process is more flexible and precise, while ensuring structural stability.
[0007] As a further description of the above technical solution:
[0008] The baffle is located on the outer wall of the telescopic block outside the fixed rod. The baffle is arc-shaped. The locking ring is located in the middle of the fixed ring and the telescopic block outside the fixed rod.
[0009] By adopting the above technical solution, the telescopic block can always be kept in the telescopic groove, preventing the telescopic block from falling out of the fixed rod.
[0010] As a further description of the above technical solution:
[0011] The inner wall of the movable ring is fixedly connected to a limiting block, and there are multiple limiting blocks. The outer wall of the fixed rod is provided with a limiting groove, and there are multiple limiting grooves. The limiting block is located inside the corresponding limiting groove.
[0012] By adopting the above technical solution, the cooperation between the limiting block and the limiting groove effectively prevents the moving ring from slipping or shifting during operation, ensuring the accuracy of the adjustment process and the convenience of operation.
[0013] As a further description of the above technical solution:
[0014] The outer wall of the threaded ring is provided with insertion holes, and there are multiple insertion holes.
[0015] By adopting the above technical solution, the design of multiple sockets facilitates operation with tools, improves adjustment efficiency, and ensures that the threaded ring can be fully tightened.
[0016] As a further description of the above technical solution:
[0017] One end of the fixed rod is provided with a positioning hole, and there are multiple positioning holes. One end of the movable rod is fixedly connected to a positioning rod, and there are multiple positioning rods. The positioning rod is located inside the corresponding positioning hole.
[0018] By adopting the above technical solution, the cooperation between the positioning rod and the positioning hole ensures the precise alignment of the movable rod and the fixed rod, prevents possible deviations during the adjustment process, and improves the stability and safety of the structure.
[0019] As a further description of the above technical solution:
[0020] A positioning ring is fixedly connected to the outer wall of the fixed rod, the positioning ring is located at the end of the thread, a first fixing block is fixedly connected to the end of the movable rod, and a second fixing block is fixedly connected to the end of the fixed rod.
[0021] By adopting the above technical solution, the positioning ring limits the maximum stroke of the threaded ring, preventing structural damage caused by over-adjustment. The design of the first and second fixing blocks facilitates connection with the frame and rocker arm, improving installation convenience and structural integrity.
[0022] By employing the above technical solution, the adjustable-length motorcycle rocker arm tie rod structure of this utility model has at least the following beneficial effects:
[0023] Compared with existing technologies, this adjustable-length motorcycle rocker arm linkage structure achieves length adjustment between the fixed rod and the movable rod via a telescopic rod. The locking groove on the outer wall of the telescopic rod engages with the locking block for initial positioning. At this time, the locking ring presses against multiple telescopic blocks, and the threaded ring is tightly pressed against the movable ring. During adjustment, the threaded ring is rotated to move it away from the movable ring, and then the locking ring is pulled out of the fixed ring via the movable ring. Then, the telescopic rod is pulled outwards. Simultaneously, because the locking block has a triangular cross-section, the telescopic rod can be pulled outwards from the fixed rod. Furthermore, during the outward pulling of the telescopic rod, multiple telescopic blocks are squeezed into the corresponding blocks by the telescopic rod. Once the length is determined in the corresponding telescopic groove, the threaded ring is rotated again along the thread of the fixed rod to abut against the moving ring, while simultaneously pushing the moving ring and locking ring to move further into the fixed ring. Similarly, the locking ring squeezes multiple telescopic blocks again, causing the telescopic blocks and locking blocks to enter the locking groove, thus maintaining the overall length unchanged. The limit block and the limit groove cooperate to prevent slippage. The positioning rod is inserted into the positioning hole to improve alignment accuracy. Finally, the frame and rocker arm are connected by the first and second fixed blocks respectively. The insertion hole allows the tool to be inserted into the threaded ring and rotated, realizing the integrated function of quick adjustment and firm locking, suitable for different scenarios. Attached Figure Description
[0024] Figure 1 This is a first-view overall structural diagram of an adjustable-length motorcycle rocker arm tie rod structure proposed in this utility model.
[0025] Figure 2 This is a schematic diagram of the movable rod and telescopic rod of an adjustable-length motorcycle rocker arm tie rod structure proposed in this utility model;
[0026] Figure 3 This is a schematic diagram of the fixing rod of an adjustable-length motorcycle rocker arm tie rod structure proposed in this utility model;
[0027] Figure 4 This is a schematic diagram of the telescopic block, locking block, and baffle of this utility model;
[0028] Figure 5 This is a schematic diagram of the moving ring and locking ring of this utility model;
[0029] Figure 6 This is a schematic diagram of the threaded ring of this utility model;
[0030] Figure 7 This is a schematic diagram showing the positions of the telescopic groove and the limiting groove of this utility model;
[0031] Figure 8This is a schematic diagram of the internal structure of the present invention;
[0032] Figure 9 for Figure 8 Enlarged schematic diagram of structure A in the middle.
[0033] Legend:
[0034] 1. Fixed rod; 2. Movable rod; 3. Telescopic rod; 4. Telescopic groove; 5. Telescopic block; 6. Locking block; 7. Baffle; 8. Fixed ring; 9. Moving ring; 10. Locking ring; 11. Thread; 12. Threaded ring; 13. Limiting block; 14. Limiting groove; 15. Insertion hole; 16. Positioning hole; 17. Positioning rod; 18. Positioning ring; 19. First fixed block; 20. Second fixed block. Detailed Implementation
[0035] 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.
[0036] Reference Figure 1-9 This utility model provides an adjustable length motorcycle rocker arm linkage structure, including a fixed rod 1, a movable rod 2 at one end of the fixed rod 1, a telescopic rod 3 fixedly connected to one end of the movable rod 2, a locking groove on the outer wall of the telescopic rod 3, the telescopic rod 3 being located inside the fixed rod 1, and multiple telescopic grooves 4 on the inner wall of the fixed rod 1. Telescopic blocks 5 are arranged inside the multiple telescopic grooves 4, a locking block 6 is fixedly connected to the outer wall of one end of the telescopic block 5, the locking block 6 being located inside the locking groove, and a baffle 7 is fixedly connected to the outer wall of the locking block 6. There are two types of fixed rods. A fixed ring 8 is fixedly connected to the outer wall of the end of the fixed rod 1. A movable ring 9 is sleeved on the outer wall of the fixed rod 1. A locking ring 10 is fixedly connected to the outer wall of the movable ring 9. The locking ring 10 is located inside the fixed ring 8. A thread 11 is opened on the outer wall of the fixed rod 1. A threaded ring 12 is threadedly connected to the outer wall of the fixed rod 1 with the thread 11. A baffle 7 is located on the outer wall of the telescopic block 5 outside the fixed rod 1. The baffle 7 is arc-shaped so that the telescopic block 5 will not slide out from the middle of the fixed rod 1. The locking ring 10 is located between the fixed ring 8 and the telescopic block 5 at the outer end of the fixed rod 1.
[0037] During adjustment, rotate the threaded ring 12 away from the moving ring 9, then pull the locking ring 10 out of the fixed ring 8 through the moving ring 9, and then pull the telescopic rod 3 outward. At the same time, since the locking block 6 has a triangular cross-section, the telescopic rod 3 can be pulled out of the fixed rod 1. During the process of pulling the telescopic rod 3 outward, multiple telescopic blocks 5 are squeezed into the corresponding telescopic grooves 4 by the telescopic rod 3. After the length is determined, rotate the threaded ring 12 again along the thread 11 of the fixed rod 1 to abut against the moving ring 9 and push the moving ring 9 and the locking ring 10 to move back into the fixed ring 8. Since the end of the telescopic block 5 located between the fixed rod 1 and the fixed ring 8 is round, the moving ring 9 squeezes the telescopic block 5 to move into the fixed rod 1. Finally, one triangular end of the telescopic block 5 is inserted into the locking groove. At this time, the telescopic rod 3 is locked and cannot move in the fixed rod 1. In the same way, the locking ring 10 squeezes multiple telescopic blocks 5 again, so that the telescopic blocks 5 and the locking block 6 enter the locking groove, thereby keeping the overall length unchanged.
[0038] The inner wall of the moving ring 9 is fixedly connected to a limiting block 13, and there are multiple limiting blocks 13. The outer wall of the fixed rod 1 is provided with a limiting groove 14, and there are multiple limiting grooves 14. The limiting block 13 is located inside the corresponding limiting groove 14, which improves the stability of the movement of the moving ring 9.
[0039] The outer wall of the threaded ring 12 has a socket 15, and there are multiple sockets 15, which can be inserted into the sockets 15 using a tool.
[0040] One end of the fixed rod 1 is provided with a positioning hole 16, and there are multiple positioning holes 16. One end of the movable rod 2 is fixedly connected to a positioning rod 17, and there are multiple positioning rods 17. The positioning rod 17 is located inside the corresponding positioning hole 16, ensuring that the movable rod 2 will not rotate after its length is locked.
[0041] A positioning ring 18 is fixedly connected to the outer wall of the fixed rod 1. The positioning ring 18 is located at the end of the thread 11 and restricts the movement space of the threaded ring 12. A first fixing block 19 is fixedly connected to the end of the movable rod 2, and a second fixing block 20 is fixedly connected to the end of the fixed rod 1. The frame and the rocker arm are connected by the first fixing block 19 and the second fixing block 20 respectively.
[0042] Working principle: The fixed rod 1 and the movable rod 2 are length-adjusted via the telescopic rod 3. The locking groove on the outer wall of the telescopic rod 3 engages with the locking block 6 for initial positioning. At this time, the locking ring 10 presses against the multiple telescopic blocks 5, and the threaded ring 12 is tightly attached to the moving ring 9. During adjustment, the threaded ring 12 is rotated to move away from the moving ring 9. Then, the locking ring 10 is pulled out of the fixed ring 8 through the moving ring 9, and then the telescopic rod 3 is pulled outward. At the same time, since the cross-section of the locking block 6 is triangular, the telescopic rod 3 can be pulled outward from the fixed rod 1. During the process of pulling the telescopic rod 3 outward, the multiple telescopic blocks 5 are squeezed into the corresponding telescopic grooves 4 by the telescopic rod 3, and the length... After confirmation, the threaded ring 12 is rotated again along the thread 11 of the fixed rod 1 to press against the moving ring 9, while pushing the moving ring 9 and the locking ring 10 to move back into the fixed ring 8. Similarly, the locking ring 10 presses against the multiple telescopic blocks 5 again, so that the telescopic blocks 5 and the locking blocks 6 enter the locking groove, thereby keeping the overall length unchanged. The limiting block 13 cooperates with the limiting groove 14 to prevent slippage. The positioning rod 17 is inserted into the positioning hole 16 to improve the alignment accuracy. Finally, the frame and the rocker arm are connected by the first fixed block 19 and the second fixed block 20 respectively. The insertion hole 15 makes it easy to insert the tool into the threaded ring 12 to drive it to rotate, realizing the integrated function of quick adjustment and firm locking.
[0043] 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. An adjustable length motorcycle rocker arm linkage structure, comprising a fixed rod (1), characterized in that: One end of the fixed rod (1) is provided with a movable rod (2), and one end of the movable rod (2) is fixedly connected to a telescopic rod (3). The outer wall of the telescopic rod (3) is provided with a locking groove. The telescopic rod (3) is located inside the fixed rod (1). The inner wall of the fixed rod (1) is provided with a telescopic groove (4), and there are multiple telescopic grooves (4). The telescopic blocks (5) are provided inside the multiple telescopic grooves (4). One end of the telescopic block (5) is fixedly connected to a locking block (6), and the locking block (6) is located inside the locking groove. The outer wall of the locking block (6) is fixedly connected with a baffle (7), and there are two baffles (7). The outer wall of the end of the fixing rod (1) is fixedly connected with a fixing ring (8). The outer wall of the fixing rod (1) is fitted with a moving ring (9). The outer wall of the moving ring (9) is fixedly connected with a locking ring (10). The locking ring (10) is located inside the fixing ring (8). The outer wall of the fixing rod (1) is threaded (11). The outer wall of the fixing rod (1) with the threaded (11) is threaded with a threaded ring (12).
2. The adjustable length motorcycle rocker arm tie rod structure according to claim 1, characterized in that: The baffle (7) is located on the outer wall of the telescopic block (5) outside the fixed rod (1). The baffle (7) is arc-shaped. The locking ring (10) is located at the middle of the fixed ring (8) and the telescopic block (5) outside the fixed rod (1).
3. The adjustable length motorcycle rocker arm tie rod structure according to claim 2, characterized in that: The inner wall of the moving ring (9) is fixedly connected to a limiting block (13), and there are multiple limiting blocks (13). The outer wall of the fixed rod (1) is provided with a limiting groove (14), and there are multiple limiting grooves (14). The limiting block (13) is located inside the corresponding limiting groove (14).
4. The adjustable length motorcycle rocker arm tie rod structure according to claim 3, characterized in that: The outer wall of the threaded ring (12) is provided with a socket (15), and there are multiple sockets (15).
5. The adjustable length motorcycle rocker arm tie rod structure according to claim 4, characterized in that: One end of the fixed rod (1) is provided with a positioning hole (16), and there are multiple positioning holes (16). One end of the movable rod (2) is fixedly connected with a positioning rod (17), and there are multiple positioning rods (17). The positioning rod (17) is located inside the corresponding positioning hole (16).
6. The adjustable length motorcycle rocker arm tie rod structure according to claim 5, characterized in that: A positioning ring (18) is fixedly connected to the outer wall of the fixed rod (1). The positioning ring (18) is located at the end of the thread (11). A first fixing block (19) is fixedly connected to the end of the movable rod (2). A second fixing block (20) is fixedly connected to the end of the fixed rod (1).