Multi-connecting-rod suspension steering mechanism

Abstract

The utility model relates to the technical field of suspension steering, and discloses a multi-connecting-rod suspension steering mechanism which comprises a handle assembly, a handle steering pipe is fixedly connected to the outer wall of the handle assembly, a gasket blocking piece is arranged on the lower surface of the handle steering pipe, a multi-connecting-rod assembly is arranged on the outer wall of the handle steering pipe, and the multi-connecting-rod assembly is fixedly connected with the handle steering pipe. A third frame assembly is connected to the outer wall of the handlebar steering tube, a second frame assembly is fixedly connected to the inner wall of the third frame assembly, the multi-connecting-rod assembly comprises a first steering connecting rod, and the inner wall of the first steering connecting rod is arranged on the outer wall of the handlebar steering tube. According to the utility model, the handle assembly is operated to drive the steering pipe to rotate, the steering connecting rod is driven to swing and transmit step by step through the pin shaft, and finally the head pipe is driven to realize small wheel steering and the return spring provides return force, so that the purposes of isolating force transmission between a suspension and a steering mechanism and eliminating handle shaking through a flexible connection design are achieved; the operation stability and comfort are improved, and part abrasion is reduced.

Description

Technical Field

[0001] This utility model relates to the field of suspension and steering technology, and in particular to a multi-link suspension and steering mechanism. Background Technology

[0002] In various wheeled vehicles and mobile equipment, the synergistic performance of the steering mechanism and suspension system directly affects handling safety and driving experience. As industrial equipment and civilian vehicles demand greater adaptability to complex road conditions, designing suspension and steering mechanisms that combine agile steering with stable damping has become a key direction for industry technology optimization. Especially in operational scenarios with varying terrain or urban commuting scenarios, the need for a balance between steering precision and suspension comfort is becoming increasingly urgent.

[0003] Traditional steering and suspension systems typically employ a rigid connection design. The steering mechanism usually involves the handlebars directly linking to the steering shaft to turn the wheels, while the suspension system is rigidly fixed to the frame via springs, shock absorbers, and other components. When the vehicle is in motion, vibrations from road impacts are transmitted directly to the steering mechanism along this rigid connection, while steering forces also react on the suspension, causing mechanical interference between the two. This structure relies on mechanical rigidity to transmit power, which, while fulfilling basic steering and support functions, makes it difficult to achieve independent movement and adequate cushioning.

[0004] However, most steering mechanisms are rigidly connected to the suspension structure. When driving, the force on the suspension is transmitted to the steering handle, causing the handle to shake. In addition, the straight-tube shock absorber is subjected to a component force along the direction of vehicle travel, which shortens the lifespan of the shock absorber. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multi-link suspension steering mechanism, which aims to improve the problem that when most steering mechanisms are rigidly connected to the suspension structure, the force of the suspension is transmitted to the steering handle during driving, causing the handle to vibrate.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-link suspension steering mechanism, including a handlebar assembly, a handlebar steering tube fixedly connected to the outer wall of the handlebar assembly, a washer baffle provided on the lower surface of the handlebar steering tube, a multi-link assembly provided on the outer wall of the handlebar steering tube, a frame assembly three connected to the outer wall of the handlebar steering tube, and a frame assembly two fixedly connected to the inner wall of the frame assembly three.

[0007] The multi-link assembly includes a steering link one, the inner wall of which is disposed on the outer wall of the handlebar steering tube, a pin one is disposed between the handlebar steering tube and the steering link one, a steering link two is disposed on the lower side of the inner wall of the steering link one, an end cap is fixedly connected to one end of the steering link two, a pin two is disposed between the steering link two and the steering link one, a steering link three is fixedly connected to the inner wall of the steering link two, a shock absorber is disposed on the inner wall of the frame assembly three, a suspension link two is fixedly connected to the inner wall of the frame assembly three, the frame assembly one is disposed on the inner wall of the suspension link two, and a screw for the steering link one is disposed on the outer wall.

[0008] Furthermore, the shock absorption assembly includes a shock absorber, which is disposed on the inner wall of the frame assembly three. A pin three is disposed between the frame assembly three and the shock absorber. A return spring is fixedly connected to the outer wall of the steering link three. A head tube is disposed on the inner wall of the steering link three. A retaining spring is fixedly connected to one end of the head tube. A small wheel assembly is disposed at the other end of the head tube. A pin four is disposed between the head tube and the small wheel assembly. A pin five is rotatably connected to the inner wall of the shock absorber. A suspension link one is fixedly connected to the outer wall of the pin five.

[0009] Furthermore, the pin first fixes the handlebar steering tube and steering linkage first while providing rotational freedom.

[0010] Furthermore, the washer baffle not only secures the shock absorber but also provides rotational freedom.

[0011] Furthermore, the pin four, while fixing the steering linkage three and the small wheel assembly, provides rotational freedom.

[0012] Furthermore, while fixing the shock absorber and the suspension link one with the pin five, it also provides rotational freedom.

[0013] Furthermore, one end of the return spring is fixedly connected to the lower surface of the second steering linkage, and two of the three frame assemblies are provided.

[0014] Furthermore, the shock absorber is disposed between the two frame assemblies.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the operating handle assembly drives the steering tube to rotate, which drives the steering linkage to swing through the pin shaft and transmits the force step by step, ultimately driving the head tube to achieve steering of the small wheel. The return spring provides the return force, which solves the problem that most steering mechanisms and suspension structures are rigidly connected, and the force of the suspension is transmitted to the steering handle during driving, causing the handle to shake. The flexible connection design isolates the force transmission between the suspension and the steering mechanism, eliminates handle shaking, improves operating stability and comfort, and reduces component wear.

[0017] 2. In this utility model, the frame assembly constitutes a load-bearing structure, and the shock absorber is connected to the suspension linkage through a pin. When driving, it absorbs the road impact transmitted by the small wheel set, ensuring the stable operation of the mechanism. It effectively absorbs the vibration generated by the road impact, reduces the degree of vehicle bumps, improves driving comfort, and at the same time ensures the stable operation of the suspension and steering system under complex road conditions, extending the service life of the mechanism. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a multi-link suspension steering mechanism proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the multi-link suspension compression state of a multi-link suspension steering mechanism proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the linkage suspension steering state of a multi-link suspension steering mechanism proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the shock absorber section of a multi-link suspension steering mechanism proposed in this utility model.

[0022] Legend:

[0023] 1. Handlebar assembly; 2. Handlebar steering tube; 3. Washer and retainer; 4. Pin 1; 5. Screw; 6. Steering link 1; 7. Pin 2; 8. End cap; 9. Steering link 2; 10. Return spring; 11. Steering link 3; 12. Pin 3; 13. Shock absorber; 14. Pin 4; 15. Snap ring; 16. Head tube; 17. Small wheel assembly; 18. Pin 5; 19. Suspension link 1; 20. Suspension link 2; 21. Frame assembly 1; 22. Frame assembly 2; 23. Frame assembly 3. 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 1-4The present invention provides an embodiment of a multi-link suspension steering mechanism, including a handlebar assembly 1, a handlebar steering tube 2 fixedly connected to the outer wall of the handlebar assembly 1, a washer baffle 3 provided on the lower surface of the handlebar steering tube 2, a multi-link assembly provided on the outer wall of the handlebar steering tube 2, a frame assembly three 23 connected to the outer wall of the handlebar steering tube 2, and a frame assembly two 22 fixedly connected to the inner wall of the frame assembly three 23.

[0026] The multi-link assembly includes a steering link 1 (6), which receives the power transmitted from the handlebar steering tube 2. It swings through a pin 1 (4) and transmits the power to a steering link 2 (9) through a pin 2 (7). It is the intermediate link in the transmission of steering power. The inner wall of the steering link 1 (6) is set on the outer wall of the handlebar steering tube 2. A pin 1 (4) is set between the handlebar steering tube 2 and the steering link 1 (6). The steering link 2 (9) is set on the lower side of the inner wall of the steering link 1 (6). An end cap 8 is fixedly connected to one end of the steering link 2 (9). A pin 2 (7) is set between the steering link 2 (9) and the steering link 1 (6). A steering link 3 (11) is fixedly connected to the inner wall of the steering link 2 (9). A shock absorber is set on the inner wall of the frame assembly 3 (23). A suspension link 2 (20) is fixedly connected to the inner wall of the frame assembly 3 (23). A frame assembly 1 (21) is set on the inner wall of the suspension link 2 (20). A steering link 1 screw 5 is set on the outer wall of the steering link 1 (6).

[0027] Specifically, when the handlebar assembly 1 is operated, the handlebar steering tube 2 rotates accordingly, driving the steering linkage 6 to swing via the first pin 4. The motion is transmitted to the second steering linkage 9 via the second pin 7, and finally the head tube 16 is driven to rotate by the third steering linkage 11, thereby realizing the steering action of the small wheel assembly 17. The screw 5 of the first steering linkage 6 ensures the fixed position of the first steering linkage 6. The return spring 10 provides the return force after the steering is completed, so that the mechanism returns to the initial state.

[0028] Reference Figures 1-4The shock absorption assembly includes a shock absorber 13, which is mounted between two frame assemblies 23 via a pin 12. When road impacts are transmitted to the small wheel assembly 17, the shock absorber 13 compresses or extends to absorb vibration energy and reduce frame bumps. The shock absorber 13 is located on the inner wall of the frame assembly 23, and a pin 12 is provided between the frame assembly 23 and the shock absorber 13. A return spring 10 is fixedly connected to the outer wall of the steering link 11, and a head tube 16 is provided on the inner wall of the steering link 11. A retaining spring 15 is fixedly connected to one end of the head tube 16, and the small wheel assembly 17 is provided at the other end of the head tube 16. A pin 14 is provided between the head tube 16 and the small wheel assembly 17. The inner wall of the shock absorber 13 is rotatably connected to a fifth pin 18, and the outer wall of the fifth pin 18 is fixedly connected to a first suspension link 19. The first pin 4 fixes the handlebar steering tube 2 and the first steering link 6 while providing rotational freedom. The washer baffle 3 fixes the shock absorber 13 while providing rotational freedom. The fourth pin 14 fixes the third steering link 11 and the small wheel assembly 17 while providing rotational freedom. The fifth pin 18 fixes the shock absorber 13 and the first suspension link 19 while providing rotational freedom. One end of the return spring 10 is fixedly connected to the lower surface of the second steering link 9. There are two frame assemblies 23, and the shock absorber 13 is located between the two frame assemblies 23.

[0029] Specifically, frame assembly 3 23, frame assembly 22, and frame assembly 1 21 form a stable load-bearing frame. The shock absorber 13 is installed between the two frame assemblies 3 23 via pin 3 12 and is connected to suspension link 1 19 via pin 5 18. Suspension link 2 20 is connected to frame assembly 1 21, forming a complete suspension system. During vehicle operation, road impacts are transmitted through the small wheel assembly 17, and the shock absorber 13 plays a buffering role, absorbing vibration energy and ensuring flexible, smooth, and stable operation of the suspension and steering.

[0030] Working principle: When a multi-link suspension steering mechanism is required, the handle assembly 1 controls the handle steering tube 2 to rotate, which drives the steering linkage 6 through the first pin 4, and then transmits it to the second steering linkage 9 through the second pin 7. Finally, the steering linkage 11 drives the head tube 16 to rotate, so as to realize the steering of the small wheel assembly 17. The screw 5 fixes the position of the steering linkage 6, and the return spring 10 provides the return force to ensure that the mechanism returns to its original position after steering.

[0031] In addition, frame assembly 3 23, frame assembly 22, and frame assembly 1 21 form a load-bearing frame. Shock absorber 13 is installed between the two frame assemblies 3 23 via pin 3 12 and connected to suspension link 1 19 via pin 5 18. Suspension link 2 20 is connected to frame assembly 1 21, together forming a suspension system. When driving, road impacts are transmitted through small wheel assembly 17, and shock absorber 13 absorbs vibrations, ensuring the flexibility and stability of suspension and steering actions.

[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 multi-link suspension steering mechanism comprising a handlebar assembly (1), characterised in that: The handlebar assembly (1) is fixedly connected to the outer wall of the handlebar tube (2), the lower surface of the handlebar tube (2) is provided with a washer baffle (3), the outer wall of the handlebar tube (2) is provided with a multi-link assembly, the outer wall of the handlebar tube (2) is connected to the frame assembly three (23), and the inner wall of the frame assembly three (23) is fixedly connected to the frame assembly two (22); The multi-link assembly includes a steering link one (6), the inner wall of which is disposed on the outer wall of the handlebar steering tube (2), a pin one (4) is disposed between the handlebar steering tube (2) and the steering link one (6), a steering link two (9) is disposed on the lower side of the inner wall of the steering link one (6), an end cap (8) is fixedly connected to one end of the steering link two (9), a pin two (7) is disposed between the steering link two (9) and the steering link one (6), a steering link three (11) is fixedly connected to the inner wall of the steering link two (9), a shock absorber is disposed on the inner wall of the frame assembly three (23), a suspension link two (20) is fixedly connected to the inner wall of the frame assembly three (23), a frame assembly one (21) is disposed on the inner wall of the suspension link two (20), and a steering link one screw (5) is disposed on the outer wall of (6).

2. A multi-link suspension steering mechanism according to claim 1, wherein: The shock absorption assembly includes a shock absorber (13), which is disposed on the inner wall of the frame assembly three (23). A pin three (12) is disposed between the frame assembly three (23) and the shock absorber (13). A return spring (10) is fixedly connected to the outer wall of the steering linkage three (11). A head tube (16) is disposed on the inner wall of the steering linkage three (11). A retaining ring (15) is fixedly connected to one end of the head tube (16). A small wheel assembly (17) is disposed at the other end of the head tube (16). A pin four (14) is disposed between the head tube (16) and the small wheel assembly (17). A pin five (18) is rotatably connected to the inner wall of the shock absorber (13). A suspension linkage one (19) is fixedly connected to the outer wall of the pin five (18).

3. A multi-link suspension steering mechanism according to claim 1, wherein: The pin (4) fixes the handlebar steering tube (2) and steering linkage (6) while providing rotational freedom.

4. A multi-link suspension steering mechanism according to claim 1, wherein: The washer baffle (3) fixes the shock absorber (13) while providing rotational freedom.

5. A multi-link suspension steering mechanism according to claim 2, wherein: The pin four (14) fixes the steering linkage three (11) and the small wheel assembly (17) while providing rotational freedom.

6. A multi-link suspension steering mechanism according to claim 2, wherein: The five pins (18) fix the shock absorber (13) and the suspension link (19) while providing rotational freedom.

7. A multi-link suspension steering mechanism according to claim 2, wherein: One end of the return spring (10) is fixedly connected to the lower surface of the steering linkage (9), and two of the frame assembly (23) are provided.

8. A multi-link suspension steering mechanism according to claim 2, wherein: The shock absorber (13) is disposed between the two frame assemblies (23).

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