Front fork assembly, scooter body assembly and scooter

Abstract

The front fork assembly comprises a front fork body and a connecting plate, the front fork body comprises a front fork handle and a front fork shoulder, the front fork shoulder comprises damping pipes located on the two sides of the front fork handle, the front fork handle is connected with the two damping pipes through connecting pieces, and the connecting plate comprises an assembling hole and a connecting part. The assembly hole is used for being assembled with an axle of the front wheel, the connecting part comprises upper connecting points and lower connecting points which are spaced in the extending direction of the damping pipe, the lower connecting points are connected with the lower end of the damping pipe, the upper connecting points are arranged above the lower connecting points at intervals and connected with the damping pipe, and the connecting part is located on the front side of the assembly hole in the front-back direction of the vehicle body. The front fork assembly has a large dragging distance, the stability of a vehicle is high, and the connecting plate between the front fork and the wheel has enough compression resistance and bending resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of scooters, and specifically, to a front fork assembly, a vehicle body assembly and a scooter. Background Art

[0002] When scooters such as scooters and bicycles travel on uneven roads, it is easy to cause the vehicle body to vibrate, making it difficult to straighten the handlebar back and resulting in weak controllability. The trail is a very important parameter related to the overall controllability of the vehicle. Generally speaking, a larger trail means better overall stability of the electric vehicle. Shifting the wheel backward relative to the front fork is an effective way to increase the trail. However, moving the hub backward will increase the distance between the shock absorber tube and the center of the hub, and the connecting sheet metal needs to bear a large torque and is prone to bending and damage. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in the related art to some extent.

[0004] The technical solution of the utility model provides a front fork assembly, which has a large trail, high vehicle stability, and the connecting plate between the front fork and the wheel has sufficient compressive and bending strength.

[0005] The front fork assembly of the embodiment of the utility model includes: a front fork main body, the front fork main body includes a front fork handle and a front fork shoulder, the front fork shoulder includes shock absorber tubes located on both sides of the front fork handle, and the front fork handle is connected to the two shock absorber tubes through a connecting piece; a connecting plate, the connecting plate includes a mounting hole and a connecting portion, the mounting hole is used for assembling with the wheel axle of the front wheel, the connecting portion includes an upper connecting point and a lower connecting point spaced apart in the extending direction of the shock absorber tube, the lower connecting point is connected to the lower end of the shock absorber tube, the upper connecting point is spaced above the lower connecting point and is connected to the shock absorber tube, and the connecting portion is located in front of the mounting hole in the front-rear direction of the vehicle body.

[0006] For the front fork assembly of the embodiment of the utility model, the connecting plate includes a mounting hole and a connecting portion. The mounting hole is used for assembling with the wheel axle of the front wheel. The connecting portion includes an upper connecting point and a lower connecting point spaced apart in the extending direction of the shock absorber tube. The lower connecting point is connected to the lower end of the shock absorber tube. The upper connecting point is spaced above the lower connecting point and is connected to the shock absorber tube. The connecting portion is located in front of the mounting hole in the front-rear direction of the vehicle body. Thus, the front wheel moves backward relative to the front fork main body to increase the trail, and further improve the overall stability of the vehicle. The lower connecting point between the connecting piece and the shock absorber tube can transfer part of the torque to the upper connecting point, thereby reducing the overall load of the connecting plate. Therefore, on the basis that the size of the connecting plate is increased to meet the large trail, the compressive and bending resistance of the connecting plate can be ensured.

[0007] In some embodiments, the upper connection point is welded to the shock-absorbing tube, and / or the lower connection point is welded to the shock-absorbing tube.

[0008] In some embodiments, the lower connection point includes a bottom connection point and a side connection point. The bottom connection point is connected to the lower end face of the shock-absorbing tube, and the side connection point is connected to the peripheral wall of the lower end of the shock-absorbing tube.

[0009] In some embodiments, the connecting plate is provided with weight-reducing holes.

[0010] In some embodiments, the thickness d of the connecting plate is 4 mm - 5 mm.

[0011] In some embodiments, the angle α between the front fork body and the horizontal plane is 73° - 76°.

[0012] In some embodiments, in the front-rear direction of the vehicle body, the front fork handle is located behind the shock-absorbing tube.

[0013] The vehicle body assembly of the embodiment of the present invention includes a vehicle frame and the front fork assembly described in the above embodiment. A front wheel is provided at the front end of the vehicle frame.

[0014] For the vehicle body assembly of the embodiment of the present invention, by adopting the above front fork assembly, the connecting plate includes an assembly hole and a connecting portion. The assembly hole is used for assembling with the wheel axle of the front wheel. The connecting portion includes an upper connection point and a lower connection point spaced apart in the extending direction of the shock-absorbing tube. The lower connection point is connected to the lower end of the shock-absorbing tube. The upper connection point is spaced above the lower connection point and is connected to the shock-absorbing tube. The connecting portion is located in front of the assembly hole in the front-rear direction of the vehicle body. Thus, the front wheel moves backward relative to the front fork body to increase the trail, and further improve the overall stability of the vehicle. And the lower connection point between the connecting member and the shock-absorbing tube can transfer part of the torque to the upper connection point, thereby reducing the overall load of the connecting plate, so that on the basis of increasing the size of the connecting plate to meet the large trail, the compressive and bending resistance of the connecting plate can be ensured.

[0015] The scooter of the embodiment of the present invention includes the vehicle body assembly of the above embodiment.

[0016] For the scooter of the embodiment of the present invention, the front fork has a large trail, the overall traveling stability of the vehicle is high, and the connecting plate has sufficient compressive and bending resistance.

[0017] In some embodiments, the trail of the scooter is 60 mm - 70 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an axonometric view of the front fork assembly according to the embodiment of the present invention.

[0019] Figure 2It is a side view of a front fork assembly according to an embodiment of the present utility model.

[0020] Reference numerals:

[0021] Front fork main body 1, front fork handle 11, front fork shoulder 12, shock absorber tube 13, front wheel 2, wheel axle 21, connecting plate 3, upper connection point 31, lower connection point 32, bottom connection point 321. Detailed implementation manners

[0022] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation to the present utility model.

[0023] As Figure 1 and Figure 2 shown, the front fork assembly of the present utility model includes a front fork main body 1 and a connecting plate 3.

[0024] The front fork main body 1 includes a front fork handle 11 and a front fork shoulder 12. The front fork shoulder 12 includes shock absorber tubes 13 located on both sides of the front fork handle 11. The front fork handle 11 is connected to the two shock absorber tubes 13 through a connecting member. The connecting plate 3 includes a mounting hole and a connecting portion. The mounting hole is used for mounting with the wheel axle 21 of the front wheel 2. The connecting portion includes an upper connection point 31 and a lower connection point 32 spaced apart in the extending direction of the shock absorber tube 13. The lower connection point 32 is connected to the lower end of the shock absorber tube 13. The upper connection point 31 is spaced above the lower connection point 32 and is connected to the shock absorber tube 13. The connecting portion is located on the front side of the mounting hole in the front-rear direction of the vehicle body.

[0025] It can be understood that since the connecting portion is located on the front side of the mounting hole, after the front fork assembly is assembled with the front wheel 2, the front fork assembly is located on the front side of the wheel axle 21 of the front wheel 2, that is, the front wheel 2 is relatively moved backward to increase the trail, thereby improving the stability of the vehicle body. At the same time, since there are two spaced upper and lower connection points between the connecting plate 3 and the shock absorber tube 13, the torque transmitted from the shock absorber tube 13 to the connecting plate 3 through the lower connection point 32 can be partially transferred to the upper connection point 31, and the force arm of the upper connection point 31 is shorter, so that the overall load of the connecting plate 3 can be weakened and its compressive strength can be improved.

[0026] The front fork assembly according to an embodiment of the present utility model, the connecting plate 3 includes an assembly hole and a connecting portion. The assembly hole is used for assembling with the axle 21 of the front wheel 2. The connecting portion includes an upper connecting point 31 and a lower connecting point 32 spaced apart in the extending direction of the shock absorber tube 13. The lower connecting point 32 is connected to the lower end of the shock absorber tube 13. The upper connecting point 31 is spaced above the lower connecting point 32 and is connected to the shock absorber tube 13. The connecting portion is located on the front side of the assembly hole in the front-rear direction of the vehicle body. Thus, the front wheel 2 is moved backward relative to the front fork main body 1 to increase the trail, and further improve the overall stability of the vehicle. And the lower connecting point 32 between the connecting member and the shock absorber tube 13 can transfer part of the torque to the upper connecting point 31, thereby reducing the overall load of the connecting plate 3. Therefore, on the basis that the size of the connecting plate 3 is increased to meet the large trail, the compressive and bending resistance of the connecting plate 3 can be ensured.

[0027] Further, the upper connecting point 31 is welded to the shock absorber tube 13, and / or the lower connecting point 32 is welded to the shock absorber tube 13. It should be noted that the connecting plate 3 is usually not too thick. Connecting by conventional screws and other methods cannot achieve good stability. Welding connection has high reliability and beautiful appearance.

[0028] Preferably, the lower connecting point 32 is located at the lower end of the connecting plate 3, and the upper connecting point 31 is located at the upper end of the connecting plate 3. It can be understood that in this arrangement, the distance between the upper connecting point 31 and the lower connecting point 32 is the longest, which can minimize the overall force on the connecting plate 3.

[0029] Preferably, the lower connecting point 32 includes a bottom connecting point 321 and a side connecting point. The bottom connecting point 321 is connected to the lower end face of the shock absorber tube 13, and the side connecting point is connected to the peripheral wall of the lower end of the shock absorber tube 13. It can be understood that the bottom connecting point 321 is used to support the downward torque of the shock absorber tube 13, and the side connecting point can assist the bottom connecting point 321 to bear the pressure. Multiple connecting points can share the pressure and reduce the risk of welding detachment.

[0030] Optionally, the connecting plate 3 is provided with a weight-reducing hole. It should be noted that while designing the weight-reducing hole, it is necessary to ensure that the structural strength of the connecting plate 3 meets the assembly requirements.

[0031] In some embodiments, the thickness d of the connecting plate 3 is 4 mm - 5 mm. It should be noted that when the thickness of the connecting plate 3 is between 4 mm and 5 mm, its structural strength can meet the support for the front fork assembly, and at the same time, it can meet the assembly requirements with the wheel hub.

[0032] Preferably, the thickness d of the connecting plate 3 is 4.5 mm.

[0033] In some embodiments, the angle α between the front fork body 1 and the horizontal plane is 73°-76°. It should be noted that the larger the angle α, the smaller the drag distance, the lower the vehicle stability and the higher the flexibility; the smaller the angle α, the larger the drag distance, the higher the vehicle stability and the lower the flexibility. The inventor of the present application has found through experiments that when the angle α is 73°-76°, the drag distance is moderate, which can take into account both the stability and steering flexibility of the vehicle.

[0034] Further, in the front-to-back direction of the vehicle body, the front fork handle 11 is located at the rear side of the shock absorber tube 13. In other words, relative to the conventional front fork assembly, the front fork handle 11 in the present application is rearwardly located, which can improve the stability of the vehicle.

[0035] The vehicle body assembly of the embodiment of the utility model comprises a frame and the front fork assembly of the above embodiment, and a front wheel 2 is provided at the front end of the frame.

[0036] The vehicle body assembly of the utility model embodiment adopts the above-mentioned front fork assembly, and the connecting plate 3 includes an assembly hole and a connecting portion. The assembly hole is used to assemble with the wheel axle 21 of the front wheel 2, and the connecting portion includes an upper connecting point 31 and a lower connecting point 32 spaced apart in the extension direction of the shock absorber tube 13, the lower connecting point 32 is connected to the lower end of the shock absorber tube 13, the upper connecting point 31 is spaced above the lower connecting point 32 and is connected to the shock absorber tube 13, and the connecting portion is located at the front side of the assembly hole in the front and rear direction of the vehicle body. As a result, the front wheel 2 moves backward relative to the front fork body 1 to increase the drag distance, thereby improving the stability of the entire vehicle, and the lower connecting point 32 between the connector and the shock absorber tube 13 can transfer part of the torque to the upper connecting point 31, thereby reducing the overall load of the connecting plate 3, so that the connecting plate 3 can ensure the compression and bending resistance of the connecting plate 3 on the basis of increasing the size to meet the large drag distance.

[0037] The mobility scooter of the embodiment of the utility model comprises the vehicle body assembly of the above embodiment.

[0038] The front fork of the scooter of the embodiment of the utility model has a large drag distance, the whole vehicle has high running stability, and the connecting plate 3 has sufficient compression and bending resistance.

[0039] In some embodiments, the towing distance of the mobility scooter ( Figure 2 The MN shown is 60mm-70mm. For example, the trailing distance can be 60mm, 62mm, 65mm, 68mm or 70mm. When the trailing distance is within this range, both the stability and steering flexibility of the vehicle can be taken into account.

[0040] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present utility model.

[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0042] In the present utility model, unless otherwise clearly specified and limited, terms such as "installation", "connection", "coupling", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0044] In the present utility model, terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0045] It should be understood that the present utility model does not limit its application to the detailed structures and arrangements of the components set forth in this specification. The present utility model is capable of having other embodiments and can be implemented and carried out in various ways. The foregoing variations and modifications fall within the scope of the present utility model. It should be understood that the present utility model as described in this specification and defined extends to all alternative combinations of two or more separate features mentioned or apparent in the text and / or drawings. All such different combinations constitute multiple alternative aspects of the present utility model. The embodiments of this specification illustrate the best mode known for implementing the present utility model and will enable those skilled in the art to utilize the present utility model.

Claims

1. A front fork assembly, characterized in that: include: A front fork body, the front fork body comprising a front fork handle and a front fork shoulder, the front fork shoulder comprising shock absorbing tubes located on both sides of the front fork handle, the front fork handle being connected to the two shock absorbing tubes via a connecting piece; A connecting plate, the connecting plate comprising an assembly hole and a connecting portion, the assembly hole being used for assembly with the axle of the front wheel, the connecting portion comprising an upper connecting point and a lower connecting point spaced apart in the extension direction of the shock absorber tube, the lower connecting point being connected to the lower end of the shock absorber tube, the upper connecting point being spaced above the lower connecting point and connected to the shock absorber tube, the connecting portion being located at the front side of the assembly hole in the front-rear direction of the vehicle body.

2. The front fork assembly according to claim 1, characterized in that: The upper connection point is welded to the shock absorber tube, and / or the lower connection point is welded to the shock absorber tube.

3. The front fork assembly according to claim 1, characterized in that: The lower connection point includes a bottom connection point and a side connection point, the bottom connection point is connected to the lower end surface of the shock absorbing tube, and the side connection point is connected to the peripheral wall of the lower end of the shock absorbing tube.

4. The front fork assembly according to claim 1, characterized in that: The connecting plate is provided with weight-reducing holes.

5. The front fork assembly according to claim 1, characterized in that: The thickness d of the connecting plate is 4 mm-5 mm.

6. The front fork assembly according to claim 1, characterized in that: The included angle α between the front fork body and the horizontal plane is 73°-76°.

7. The front fork assembly according to claim 1, characterized in that: In the front-rear direction of the vehicle body, the front fork handle is located at the rear side of the shock absorber tube.

8. A vehicle body assembly, characterized in that: The bicycle comprises a frame and a front fork assembly according to any one of claims 1 to 7, wherein a front wheel is arranged at the front end of the frame.

9. A mobility scooter, characterized in that: Comprising a vehicle body assembly according to claim 8.

10. The mobility scooter according to claim 9, characterized in that: The towing distance of the scooter is 60mm-70mm.

Images