Motorcycle steering lower yoke plate assembly
By designing the splicing screw connection and locking mechanism for the first and second lower connecting plates, the problems of replacement difficulty and instability caused by welding connections were solved, thereby improving the stability and handling precision of the steering system.
Patent Information
- Application Number
- CN202520542720.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-26
AI Technical Summary
The existing welded connection between the lower steering linkage and the steering column of motorcycles makes replacement difficult and unstable, affecting the reliability and safety of the steering system.
The first and second lower connecting plates are connected by splicing screws and equipped with a locking mechanism and a front shock absorber mounting mechanism to achieve detachable steering column and stable transmission of steering force.
It simplifies the steering column replacement process, improves the stability and handling precision of the steering system, reduces vibration and deviation, and enhances the overall structural strength and safety.
Smart Images

Figure CN223835751U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical design technology, and in particular to a motorcycle steering lower linkage assembly. Background Technology
[0002] The connection between motorcycle steering and the lower control plate lies in the fact that the lower control plate is a crucial component of the steering system, responsible for connecting the front fork to the frame and playing a role in transmitting steering force and maintaining the stability of the front wheel. When steering, the steering force is transmitted to the lower control plate via the handlebars, and then from the lower control plate to the front fork and front wheel, thus adjusting the motorcycle's direction. Using a lower control plate offers several beneficial effects on motorcycle steering. First, it provides stronger support, making steering smoother and reducing deviation and vibration. Second, a well-designed lower control plate can effectively distribute steering force, improving steering agility and responsiveness, thereby enhancing handling performance and safety. Finally, using a high-quality lower control plate enhances the overall structural stability and extends the motorcycle's lifespan. In summary, the lower control plate plays a vital role in the motorcycle steering system, improving steering precision, stability, and safety.
[0003] The existing motorcycle steering lower clamp works primarily by connecting the front fork and frame, transmitting the rider's steering input to the front wheel. Specifically, when the rider turns the handlebars, the steering force is transmitted through the handlebars, steering shaft, and steering column to the lower clamp. The lower clamp then transmits this steering force to the front fork and front wheel, thus changing the direction of travel. The lower clamp is typically designed with a specific angle and support structure to ensure smooth force transmission and stable control of the front wheel during steering. Furthermore, the lower clamp must withstand impacts from the road surface and the motorcycle itself; therefore, its materials and design requirements are high to ensure stable steering performance during riding.
[0004] In existing technologies, some motorcycles use welding to connect the lower steering linkage and the steering column. While this method provides a certain degree of stability, it also introduces several significant problems. First, when the steering column needs replacement, disassembly and replacement become extremely difficult due to the inherent characteristics of welded connections, increasing the complexity of maintenance and repair. Second, the connection quality of welding is affected by multiple factors, such as the welding process and the thermal expansion characteristics of the materials. This can lead to instability or fatigue at the weld, thereby affecting the reliability and safety of the steering system. Therefore, this paper proposes a motorcycle steering linkage assembly to address these issues. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a motorcycle steering lower coupling plate assembly, which aims to improve the existing technology where some motorcycle steering lower coupling plates and steering columns are connected by welding technology. This makes it difficult to replace the steering column when needed, and the welding technology is prone to unstable connection.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a motorcycle steering lower connecting plate assembly, including a first lower connecting plate and a second lower connecting plate, a locking mechanism is fixedly connected between the first lower connecting plate and the second lower connecting plate, a front shock absorber mounting mechanism is fixedly connected to both sides of the first lower connecting plate and the second lower connecting plate, and a steering column is slidably connected inside the first lower connecting plate and the second lower connecting plate;
[0007] The locking mechanism includes two mounting blocks, which are fixedly connected to the first lower connecting plate and the second lower connecting plate on the same side. A locking block is slidably connected inside the mounting block, and a return spring is fixedly connected to the outside of the locking block. The other end of the return spring is fixedly connected inside the mounting block.
[0008] As a further description of the above technical solution: the front shock absorber mounting mechanism includes four front shock absorber mounting rings, which are respectively fixedly connected to both sides of the first lower connecting plate and the second lower connecting plate. Each front shock absorber mounting ring is fixedly connected to a connecting block, and the connecting block is provided with mounting screws inside.
[0009] As a further description of the above technical solution: two positioning blocks are fixedly connected to the front sides of the first lower connecting plate and the second lower connecting plate, and the interior of the two positioning blocks has mounting through holes;
[0010] As a further description of the above technical solution: the top of the first lower connecting plate is fixedly connected to two guide posts, both of which are square funnel-shaped blocks;
[0011] As a further description of the above technical solution: a sealing ring is fixedly connected to the outside of the steering column, and a limit nut is threadedly connected to the outside of the steering column. The sealing ring is located at the top of the first lower connecting plate, and the limit nut is located at the bottom of the second lower connecting plate.
[0012] As a further description of the above technical solution: the first lower connecting plate and the second lower connecting plate are both provided with mounting grooves on their adjacent sides, the mounting block is fixedly connected to the inside of the mounting groove, and the locking block is slidably connected to the mounting groove;
[0013] As a further description of the above technical solution: a limiting groove is provided inside the steering column, and the locking block is slidably connected in the limiting groove;
[0014] As a further description of the above technical solution: the mounting block has a guide groove inside, the reset spring is fixedly connected in the guide groove, and the locking block is slidably connected in the guide groove.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, first loosen the limiting nut located at the bottom of the steering column, then loosen the fixing screw between the first lower connecting plate and the second lower connecting plate, so that the first lower connecting plate and the second lower connecting plate are separated. Then pull the locking block located between the first lower connecting plate and the second lower connecting plate, so that the locking block is disengaged from the locking groove opened inside the steering column, thereby releasing the restriction on the steering column and realizing the replacement of the steering column. By replacing the aging or damaged steering column, the vibration and deviation generated by the motorcycle during driving can be reduced, and the steering sensitivity and comfort can be improved.
[0017] 2. In this utility model, the original single lower control plate is transformed into a lower control plate composed of a first lower control plate and a second lower control plate combined with screws, thereby significantly enhancing the stability and strength of the steering system. By adopting the combined design of the first lower control plate and the second lower control plate, the transmission of steering force can be effectively dispersed, reducing the deformation and torsion of the steering system, thereby improving handling precision and comfort. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of a motorcycle steering lower linkage assembly proposed in this utility model;
[0019] Figure 2 This is a schematic diagram of the steering column structure of a motorcycle steering lower linkage assembly proposed in this utility model;
[0020] Figure 3 This is a schematic diagram of the mounting block of a motorcycle steering lower link assembly proposed in this utility model;
[0021] Figure 4 This is a schematic diagram of the front shock absorber mounting ring of a motorcycle steering lower coupling assembly proposed in this utility model.
[0022] Legend:
[0023] 1. First lower connecting plate; 2. Second lower connecting plate; 3. Steering column; 4. Sealing ring; 5. Limit nut; 6. Locking block; 7. Mounting block; 8. Return spring; 9. Guide column; 10. Positioning block; 11. Connecting block; 12. Front shock absorber mounting ring. Detailed Implementation
[0024] 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.
[0025] Reference Figures 2 to 4 This utility model provides an embodiment of a motorcycle steering lower link assembly, including a first lower link 1 and a second lower link 2. The first lower link 1 and the second lower link 2 are the two main components of the steering lower link assembly. The first lower link 1 and the second lower link 2 are connected together by splicing screws to ensure the stability and function of the steering system. A locking mechanism is fixedly connected between the first lower link 1 and the second lower link 2. Front shock absorber mounting mechanisms are fixedly connected to both sides of the first lower link 1 and the second lower link 2. A steering column 3 is slidably connected inside the first lower link 1 and the second lower link 2. The steering column 3 is the core component of the motorcycle steering system. The steering column 3 is connected to the steering handle and drives the front wheel to rotate through its rotation.
[0026] The locking mechanism includes two mounting blocks 7, which are key components of the locking mechanism. These mounting blocks 7 are fixedly connected to the first lower connecting plate 1 and the second lower connecting plate 2 on adjacent sides. The two mounting blocks 7 provide support and sliding function for the subsequent locking block 6. The two mounting blocks 7 are fixedly connected to the first lower connecting plate 1 and the second lower connecting plate 2 on adjacent sides. The locking block 6 is slidably connected inside the mounting block 7, and the locking block 6 is slidably connected inside the mounting block 7, serving to lock and unlock. A return spring 8 is fixedly connected to the outside of the locking block 6, and the return spring 8 is fixedly connected inside the mounting block 7, guiding the locking block 6 to automatically reset after completing its work. The other end of the return spring 8 is fixedly connected inside the mounting block 7.
[0027] A sealing ring 4 is fixedly connected to the outside of the steering column 3. The sealing ring 4 is located at the top of the steering column 3 and plays a sealing role to prevent dust and moisture from entering the steering system and maintain the smooth operation of the steering column 3. A limit nut 5 is threadedly connected to the outside of the steering column 3. The limit nut 5 is located outside the steering column 3 and is threadedly connected to the bottom of the second lower connecting plate 2 to ensure that the steering column 3 can limit its range of movement during movement and prevent instability caused by excessive rotation. The sealing ring 4 is located at the top of the first lower connecting plate 1 and the limit nut 5 is located at the bottom of the second lower connecting plate 2.
[0028] Mounting slots are provided on the adjacent sides of the first lower connecting plate 1 and the second lower connecting plate 2. Mounting block 7 is fixedly connected in the slot to ensure stable operation during steering. Mounting block 7 is fixedly connected in the mounting slot. Locking block 6 is slidably connected in the mounting slot. A limiting slot is provided inside the steering column 3 to limit the range of motion of the steering column 3, thereby ensuring that the steering column 3 will not fall off unexpectedly, thus enhancing the controllability and safety of steering. Locking block 6 is slidably connected in the limiting slot. A guide slot is provided inside the mounting block 7. Return spring 8 is fixedly connected in the guide slot. Locking block 6 is slidably connected in the guide slot.
[0029] Reference Figure 1 , Figure 3 , Figure 4 The front shock absorber mounting mechanism includes four front shock absorber mounting rings 12, which are fixedly connected to both sides of the first lower connecting plate 1 and the second lower connecting plate 2, respectively. Each front shock absorber mounting ring 12 is fixedly connected to a connecting block 11. The core of the front shock absorber mounting mechanism is the four front shock absorber mounting rings 12, which are fixedly connected to both sides of the first lower connecting plate 1 and the second lower connecting plate 2. The exterior of each front shock absorber mounting ring 12 is fixedly connected to the connecting block 11. The connecting block 11 has mounting screws inside for fixing the installation of the shock absorber. The connecting block 11 has mounting screws inside. The front sides of the first lower connecting plate 1 and the second lower connecting plate 2 are respectively fixedly connected to two positioning blocks 10. The positioning blocks 10 have mounting through holes inside for connecting the lower connecting plate to the area to be installed, ensuring that the lower connecting plate can be accurately fixed and work stably. The two positioning blocks 10 have mounting through holes inside. The top of the first lower connecting plate 1 is fixedly connected to two guide posts 9. The function of the guide posts 9 is to guide and ensure the accurate directionality of the front wheels during steering. Both guide posts 9 are funnel-shaped blocks.
[0030] Working principle: The positioning block 10 is connected to the area to be installed by screws and nuts to achieve the purpose of installing the lower connecting plate. Then, the shock absorber column of the front shock absorber is placed inside the front shock absorber mounting ring 12, and the screws are tightened so that the connecting block 11 is close to the first lower connecting plate 1 and the second lower connecting plate 2, thereby locking the size of the inner ring of the front shock absorber mounting ring 12 to restrict the shock absorber column.
[0031] When the steering column 3 needs to be replaced, the limiting nut 5 at the bottom of the steering column 3 can be loosened, and then the screws located between the first lower connecting plate 1 and the second lower connecting plate 2 can be loosened to separate the first lower connecting plate 1 and the second lower connecting plate 2. Then, the locking block 6 located in the mounting groove between the first lower connecting plate 1 and the second lower connecting plate 2 can be pulled, so that the locking block 6 is disengaged from the locking groove opened inside the steering column 3 under the guidance of the mounting block 7, thereby achieving the purpose of loosening the steering column 3, separating the steering column 3 from the first lower connecting plate 1 and the second lower connecting plate 2. Then, the locking block 6 can be loosened, and the locking block 6 can be reset with the help of the return spring 8 located outside the locking block 6.
[0032] 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 motorcycle steering lower link assembly, comprising a first lower link (1) and a second lower link (2), characterized in that: A locking mechanism is fixedly connected between the first lower connecting plate (1) and the second lower connecting plate (2). Front shock absorber mounting mechanisms are fixedly connected to both sides of the first lower connecting plate (1) and the second lower connecting plate (2). A steering column (3) is slidably connected inside the first lower connecting plate (1) and the second lower connecting plate (2). The locking mechanism includes two mounting blocks (7), which are fixedly connected to the first lower connecting plate (1) and the second lower connecting plate (2) on the same side. A locking block (6) is slidably connected inside the mounting block (7), and a return spring (8) is fixedly connected to the outside of the locking block (6). The other end of the return spring (8) is fixedly connected inside the mounting block (7).
2. The motorcycle steering lower coupling plate assembly according to claim 1, characterized in that: The front shock absorber mounting mechanism includes four front shock absorber mounting rings (12), which are fixedly connected to the two sides of the first lower connecting plate (1) and the second lower connecting plate (2), respectively. Each front shock absorber mounting ring (12) is fixedly connected to a connecting block (11), and the connecting block (11) is provided with mounting screws inside.
3. The motorcycle steering lower coupling plate assembly according to claim 1, characterized in that: Two positioning blocks (10) are fixedly connected to the front sides of the first lower connecting plate (1) and the second lower connecting plate (2), and there are mounting through holes inside the two positioning blocks (10).
4. A motorcycle steering lower coupling assembly according to claim 1, characterized in that: The top of the first lower connecting plate (1) is fixedly connected to two guide posts (9), both of which are directional funnel-shaped blocks.
5. A motorcycle steering lower coupling plate assembly according to claim 1, characterized in that: The steering column (3) is fixedly connected to a sealing ring (4), and the steering column (3) is threadedly connected to a limiting nut (5). The sealing ring (4) is located at the top of the first lower connecting plate (1), and the limiting nut (5) is located at the bottom of the second lower connecting plate (2).
6. A motorcycle steering lower coupling plate assembly according to claim 1, characterized in that: The first lower connecting plate (1) and the second lower connecting plate (2) are provided with mounting grooves on their adjacent sides. The mounting block (7) is fixedly connected to the inside of the mounting groove, and the locking block (6) is slidably connected to the mounting groove.
7. A motorcycle steering lower coupling assembly according to claim 1, characterized in that: The steering column (3) has a limiting groove inside, and the locking block (6) is slidably connected in the limiting groove.
8. A motorcycle steering lower coupling plate assembly according to claim 1, characterized in that: The mounting block (7) has a guide groove inside, the reset spring (8) is fixedly connected in the guide groove, and the locking block (6) is slidably connected in the guide groove.