Motorcycle rear fork structure and motorcycle

Abstract

The motorcycle rear bottom fork structure comprises a bottom fork assembly, the bottom fork assembly comprises a first fork arm and a second fork arm, and a cross beam is fixedly connected between the first fork arm and the second fork arm; the rear shock absorption seat assembly comprises a rear shock absorption seat, and the rear shock absorption seat is detachably connected with the cross beam and located at the top of the cross beam; a group of connecting sheets are arranged on the surface of the rear shock-absorbing seat; and corresponding eccentric mounting holes are formed in the connecting sheets. The cross beam and the rear shock absorption seat are detachably connected, and the eccentric mounting hole is formed, so that a driver can easily adjust the front and back mounting positions of the motorcycle shock absorption assembly only by simply rotating the rear shock absorption seat by 180 degrees, and then the height of a motorcycle cushion is directly influenced; and the flexibility, the accuracy and the operability of height adjustment of the motorcycle cushion are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycles, in particular to a rear flat fork structure of a motorcycle. Background Art

[0002] Existing motorcycle drivers have clear requirements for motorcycle seat height, but drivers of different heights and genders have completely different requirements for motorcycle seat height. Even drivers of the same height but different body proportions have different requirements for motorcycle seat height. As the seat height designed during motorcycle research and development is set with reference to the average height of the social population, it is very necessary to know how to adjust the motorcycle seat height. However, most motorcycles on the market have fixed rear shock absorber mounting points, which makes it impossible to adjust the height of the shock absorber assembly, thereby affecting the height adjustment of the motorcycle seat. A few rear shock absorber mounts are provided with multiple rows of mounting holes of different heights in one degree of freedom direction, namely the front-to-back direction, to achieve an adjustable height range of the shock absorber assembly. However, this structure is complex, has poor versatility, and is difficult to manufacture and process. Utility Model Content

[0003] In order to overcome the above-mentioned problems existing in existing motorcycles, the purpose of this application is to achieve a variety of seat height adjustments by simply replacing the shock absorber mounting assembly without replacing the shock absorber assembly.

[0004] The technical solutions adopted in this application are:

[0005] A motorcycle rear flat fork structure, a flat fork assembly, the flat fork assembly including a first fork arm and a second fork arm, a crossbeam fixedly connected between the first fork arm and the second fork arm; a rear shock absorber seat assembly, the rear shock absorber seat assembly including a rear shock absorber seat, the rear shock absorber seat is detachably connected to the crossbeam and is located on the top of the crossbeam; the surface of the rear shock absorber seat is provided with a height adjustment structure.

[0006] Furthermore, the height adjustment structure comprises a set of connecting plates provided on the upper surface of the rear shock absorber, each of which has a corresponding eccentric mounting hole. By adopting this technical solution, the rear shock absorber can be rotated 180 degrees to adjust the fore-aft displacement of the motorcycle shock absorber assembly, thereby adjusting the height of the motorcycle seat.

[0007] Furthermore, the rear shock absorber assembly further includes at least one adjustment block, which is disposed between the crossbeam and the rear shock absorber and is detachably connected to the rear shock absorber. By adopting the above technical solution, the height of the motorcycle seat can be adjusted in the vertical direction by adding or removing the adjustment block.

[0008] Furthermore, mounting holes are provided on the crossbeam, the adjustment block and the rear shock absorber seat, and the crossbeam, the adjustment block and the rear shock absorber seat are connected by fasteners.

[0009] Furthermore, the rear shock absorber seat also includes a transverse tube, and the transverse tube is fixed to the rear shock absorber seat through an eccentric mounting hole.

[0010] Another embodiment is disclosed

[0011] A motorcycle rear flat fork structure, a flat fork assembly, the flat fork assembly including a first fork arm and a second fork arm, a crossbeam fixedly connected between the first fork arm and the second fork arm; a rear shock absorber seat assembly, the rear shock absorber seat assembly including a rear shock absorber seat, the rear shock absorber seat is detachably connected to the crossbeam and is located on the top of the crossbeam; the surface of the rear shock absorber seat is provided with a height adjustment structure.

[0012] Furthermore, the height adjustment structure comprises at least one adjustment block disposed on the lower surface of the rear shock absorber, and the adjustment block is disposed between the crossbeam and the rear shock absorber, and the adjustment block and the rear shock absorber are detachably connected. By adopting the above technical solution, the height of the motorcycle seat can be adjusted in the vertical direction by adding or removing the adjustment block.

[0013] Furthermore, a set of connecting plates are provided on the upper surface of the rear shock absorber, and corresponding eccentric mounting holes are provided on the connecting plates. By adopting the above technical solution, the displacement of the motorcycle seat in the front-to-back direction can be adjusted by rotating the rear shock absorber 180 degrees.

[0014] Furthermore, mounting holes are provided on the crossbeam, the adjustment block and the rear shock absorber seat, and the crossbeam, the adjustment block and the rear shock absorber seat are connected by fasteners.

[0015] Furthermore, the rear shock absorber seat also includes a transverse tube, and the transverse tube is fixed to the rear shock absorber seat through an eccentric mounting hole.

[0016] Also disclosed is a motorcycle equipped with the aforementioned motorcycle rear flat fork structure. By adjusting the front-to-back and up-down positions of the motorcycle shock absorber assembly mounting points, the mounting angle of the motorcycle shock absorber assembly can be finely controlled, thereby improving the flexibility, accuracy, and ease of operation of the motorcycle seat height adjustment.

[0017] In summary, the present application includes at least one of the following beneficial effects: by cleverly designing the detachable connection structure between the crossbeam, the adjustment block and the rear shock absorber seat, and combining the eccentric mounting hole mechanism on the rear shock absorber seat, the motorcycle shock absorber assembly can be precisely adjusted in two key degrees of freedom: front and back and up and down. That is, the driver only needs to simply rotate the rear shock absorber seat 180 degrees to easily adjust the front and back position of the motorcycle shock absorber assembly. At the same time, the height of the motorcycle shock absorber assembly can be flexibly adjusted by adding or reducing the adjustment block, which directly affects the height of the motorcycle seat, greatly improving the flexibility, accuracy and ease of operation of the motorcycle seat height adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an exploded diagram of the structure of this application.

[0019] Figure 2 This is a schematic diagram of a flat cross in this application.

[0020] Figure 3 Another structural intention of the rear shock absorber in this application

[0021] Description of reference numerals:

[0022] Flat fork assembly 1 First fork arm 11 Second fork arm 12 Cross beam 13 First mounting hole 131 First fork arm 12 Cross beam 13 Adjustment block 2 Second mounting hole 21 Rear shock absorber seat 3 Connecting piece 31 Eccentric mounting hole 32 Third mounting hole 33 Cross tube 34 Bolt 4 DETAILED DESCRIPTION

[0023] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0024] The following is combined with Figure 1-2 The utility model is described in further detail.

[0025] like Figure 1-2 As shown, the present application discloses a motorcycle rear flat fork structure, including a flat fork assembly 1 and a rear shock absorber seat 3 assembly, the flat fork assembly 1 includes a first fork arm 11 and a second fork arm 12, and a crossbeam 13 is fixedly connected between the first fork arm 11 and the second fork arm 12; the rear shock absorber seat 3 assembly, the rear shock absorber seat 3 assembly includes a rear shock absorber seat 3, and the rear shock absorber seat 3 is detachably connected to the crossbeam 13 and is located on the top of the crossbeam 13, and the surface of the rear shock absorber seat 3 is provided with a height adjustment structure.

[0026] like Figure 1As shown, the height adjustment structure can be a set of connecting plates 31 provided on the upper surface of the rear shock absorber 3. The connecting plates 31 are provided with corresponding eccentric mounting holes 32. An eccentric mounting hole 32 is a connecting hole located off the centerline of the connecting plates 31 and is used to mount the motorcycle's shock absorber assembly. In this embodiment, the detachable connection between the fork assembly 1 and the rear shock absorber 3, coupled with the eccentric mounting holes 32 provided on the rear shock absorber 3 for mounting the motorcycle's shock absorber assembly, allows the motorcycle's shock absorber assembly to be adjusted in its fore-and-aft position on the motorcycle. This allows the driver to simply rotate the rear shock absorber 3 180 degrees to adjust the fore-and-aft position of the motorcycle's shock absorber assembly, thereby adjusting the height of the motorcycle seat. This ingenious fore-and-aft adjustment mechanism for the rear shock absorber 3 provides a more flexible and precise adjustment compared to conventional methods, such as providing multiple rows of corresponding pre-reserved mounting holes at varying heights on the rear shock absorber 3. Furthermore, the simpler structure, lower processing difficulty, and easier operation significantly enhance the driver's convenience and satisfaction.

[0027] like Figure 1 As shown, the rear shock absorber seat 3 assembly also includes at least one adjustment block 2, which is disposed between the crossbeam 13 and the lower surface of the rear shock absorber seat 3 and is detachably connected to the rear shock absorber seat 3. By reducing or adding the adjustment block 2, the driver can adjust the height of the motorcycle's shock absorber assembly in the vertical direction, thereby directly affecting the height of the motorcycle's seat. In this embodiment, by providing a detachable connection structure between the crossbeam 13, the adjustment block 2, and the rear shock absorber seat 3, combined with the eccentric mounting hole 32 on the rear shock absorber seat 3, the motorcycle's shock absorber assembly can be precisely adjusted in two key degrees of freedom: fore-aft and up-and-down. That is, the driver can easily adjust the fore-aft position of the motorcycle's shock absorber assembly by simply rotating the rear shock absorber seat 180 degrees, or flexibly adjust the height of the motorcycle's shock absorber assembly by adding or removing the adjustment block 2, thereby directly affecting the height of the motorcycle's seat, greatly improving the flexibility and precision of adjustment. Furthermore, the vertical adjustment mechanism features a simple and straightforward structure, requiring no complex tools or specialized skills. Operation is straightforward, and the driver has ample scope for customization, allowing for adjustments to the number of adjustment blocks 2, thereby varying their thickness and achieving a wide range of vertical adjustment options. Furthermore, the detachable connection between the crossbeam 13, the adjustment blocks 2, and the rear shock mount 3 creates a highly modular component, facilitating maintenance, upgrades, and customization. This allows for widespread application across a wide range of motorcycle models and specifications, saving production and manufacturing costs. The rational and concise structural design also simplifies the manufacturing process, improving production efficiency and product quality.

[0028] During installation, the fork assembly 1 is mounted on the vehicle frame. Four first mounting holes 131 are provided on the crossbeam 13 of the fork assembly 1. The adjustment block 2 is provided with a second mounting hole 21 corresponding to the first mounting holes 131. The rear shock absorber seat 3 is provided with a third mounting hole 33 corresponding to both the first mounting hole 131 and the second mounting hole 21. The fastening bolt 4 is sequentially passed through the third mounting hole 33 on the rear shock absorber seat 3, the second mounting hole 21 on the adjustment block 2, and the first mounting hole 131 on the crossbeam 13, thereby securing the rear shock absorber seat 3 and the adjustment block 2 to the crossbeam 13. In this embodiment, the first mounting holes 131, the second mounting holes 21, and the third mounting holes 33 can be provided as required and are not limited to four corresponding mounting holes. The entire assembly is detachably connected and secured by the same fixing member. Compared to existing adjustable structures of the rear shock absorber seat 3 that reserve one or more mounting holes, this embodiment has fewer exposed mounting holes and is more aesthetically pleasing.

[0029] like Figure 3 As shown, the rear shock absorber mount 3 further includes a cross tube 34, which is welded to the rear shock absorber mount 3 through the eccentric mounting hole 32. The length of the cross tube 34 is greater than the distance between the two eccentric mounting holes 32 provided on the connecting piece 31. In this embodiment, by setting the length of the cross tube 34 to be greater than the distance between the two eccentric mounting holes 32 provided on the connecting piece 31, it is convenient to install the motorcycle shock absorber assembly outside the rear shock absorber mount.

[0030] The present application also discloses a motorcycle rear flat fork structure, comprising a flat fork assembly 1 and a rear shock absorber seat 3 assembly, wherein the flat fork assembly 1 comprises a first fork arm 11 and a second fork arm 12, wherein a crossbeam 13 is fixedly connected between the first fork arm 11 and the second fork arm 12; and a rear shock absorber seat 3 assembly, wherein the rear shock absorber seat 3 assembly comprises a rear shock absorber seat 3, wherein the rear shock absorber seat 3 is detachably connected to the crossbeam 13 and is located on the top of the crossbeam 13, and wherein a height adjustment structure is provided on the surface of the rear shock absorber seat 3, wherein the height adjustment structure is an adjustment block 2 provided on the lower surface of the rear shock absorber seat 3, wherein at least one adjustment block 2 is provided and is detachably connected to the rear shock absorber seat 3. In this embodiment, by providing a detachable connection between the crossbeam 13, the adjustment block 2 and the rear shock absorber seat 3, the height of the motorcycle seat can be changed, that is, the driver only needs to adjust the height of the motorcycle shock absorber assembly in the vertical direction by adding or removing the adjustment block 2, thereby directly affecting the height of the motorcycle seat. The vertical adjustment method has a simple structure and is easy to operate. At the same time, the driver has a large space for customized modification, and can customize the number of adjustment blocks 2 to change the thickness of the entire adjustment block 2 to achieve more up and down adjustment methods.

[0031] In this embodiment, the upper surface of the rear shock absorber mount 3 is provided with a set of connecting plates 31, each of which is provided with a corresponding eccentric mounting hole 32. By providing a detachable connection between the crossbeam 13, the adjustment block 2, and the rear shock absorber mount 3, combined with the eccentric mounting hole 32 provided on the upper surface of the rear shock absorber mount 3, the motorcycle's shock absorber assembly is adjustable in two degrees of freedom: fore-aft and aft, and up-and-down. Specifically, the driver can adjust the fore-aft mounting position of the motorcycle's shock absorber assembly by simply rotating the rear shock absorber mount 3 180 degrees, or adjust the height of the motorcycle's shock absorber assembly by adding or removing the adjustment block 2. This provides a clever fore-aft adjustment mechanism for the rear shock absorber mount 3, a simple up-and-down adjustment mechanism, and simple operation.

[0032] This application also discloses a motorcycle equipped with a motorcycle fork assembly according to any of the aforementioned embodiments, which enables height adjustment of the motorcycle seat. By adjusting the fore-aft and up-and-down position of the motorcycle's shock absorber assembly mounting point, the motorcycle's shock absorber assembly's mounting angle can be finely controlled, thereby varying the lever ratio of the motorcycle's rear suspension. This change directly impacts the dynamic response and stability of the motorcycle's suspension system. Combined with adaptive adjustments to the motorcycle's seat, this significantly improves the motorcycle's suspension comfort (for long-distance travel or daily commuting) or performance (for competitive driving or intense maneuvers), meeting the personalized needs of various driving scenarios. Furthermore, this embodiment closely links the characteristics of the motorcycle's suspension system with the driver's body posture, adapting to riders of varying heights, weights, and riding habits. This not only optimizes the driver's sitting comfort and reduces fatigue during extended riding, but also enhances control and safety during driving by adjusting the riding posture, resulting in a higher level of riding experience and enjoyment.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A motorcycle rear fork structure, characterized by: include A flat fork assembly, the flat fork assembly comprising a first fork arm and a second fork arm, wherein a crossbeam is fixedly connected between the first fork arm and the second fork arm; A rear shock absorber seat assembly comprises a rear shock absorber seat, which is detachably connected to the cross beam and is located on the top of the cross beam; a height adjustment structure is provided on the surface of the rear shock absorber seat.

2. The motorcycle rear fork structure according to claim 1, characterized in that: The height adjustment structure is a group of connecting plates provided on the upper surface of the rear shock absorber seat, and corresponding eccentric mounting holes are opened on the connecting plates.

3. The motorcycle rear fork structure according to claim 2, characterized in that: The rear shock absorber assembly further includes at least one adjusting block, which is arranged between the cross beam and the rear shock absorber, and the adjusting block is detachably connected to the rear shock absorber.

4. The motorcycle rear fork structure according to claim 1, characterized in that: The height adjustment structure is at least one adjustment block provided on the lower surface of the rear shock absorber seat, and the adjustment block is provided between the cross beam and the rear shock absorber seat, and the adjustment block and the rear shock absorber seat are detachably connected.

5. The motorcycle rear fork structure according to claim 4, characterized in that: A group of connecting pieces are provided on the surface of the rear shock absorber seat, and corresponding eccentric mounting holes are opened on the connecting pieces.

6. The motorcycle rear fork structure according to claim 3 or 5, characterized in that: The crossbeam, the adjustment block and the rear shock absorber seat are all provided with mounting holes, and the crossbeam, the adjustment block and the rear shock absorber seat are connected by fasteners.

7. The motorcycle rear fork structure according to claim 2 or 5, characterized in that: The rear shock absorber seat further comprises a transverse tube, and the transverse tube is fixed on the rear shock absorber seat through an eccentric mounting hole.

8. A motorcycle, characterized in that: The invention comprises the motorcycle rear flat fork structure according to any one of claims 1 to 7.

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