Front fork and electric vehicle

Abstract

The utility model relates to vehicle technical field especially, and it is a kind of front fork and electric motor car.The front fork includes fork frame and front fork cylinder;The fork frame includes stand and two front fork legs connected to the stand, the front fork cylinder is sleeved in the front fork leg, and with the detachable connection of the front fork leg.The electric motor car includes above-mentioned front fork.The utility model provides a kind of front fork and electric motor car, to alleviate the technical problem of complex operation and higher cost of different brake form conversion of electric motor car in prior art.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a front fork and an electric vehicle. Background Technology

[0002] Electric vehicles generally use two types of braking systems: drum brakes and disc brakes. Drum brakes can be further divided into mechanical drum brakes and hydraulic drum brakes based on their drive mechanism. Disc brakes can be divided into over-mounted disc brakes and under-mounted disc brakes based on the brake disc's mounting position and the caliper's locking position. Therefore, electric vehicles typically employ four braking systems: mechanical drum brakes, hydraulic drum brakes, over-mounted disc brakes, and under-mounted disc brakes. Correspondingly, to accommodate different braking systems, electric vehicles often have various front fork designs. Therefore, switching between different braking systems within the same electric vehicle model often requires replacing the entire front fork, which is complex and costly.

[0003] Therefore, this application provides a new front fork and electric vehicle to address the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a front fork that can at least alleviate the technical problems of complex and costly operation when switching between different braking modes in electric vehicles in the prior art.

[0005] The purpose of this utility model is also to provide an electric vehicle to further alleviate the technical problems of complex operation and high cost of switching between different braking modes in existing electric vehicles.

[0006] Based on the aforementioned first objective, this utility model provides a front fork, which includes a front fork frame and a front fork tube; The fork frame includes a column and two fork legs, both connected to the column. The fork sleeve is fitted onto the fork legs and is detachably connected to the fork legs.

[0007] Furthermore, the fork tube includes a tube body, one end of which is used to be fitted onto the fork leg, and the other end is provided with a wheel hole for connecting to the wheel axle.

[0008] Furthermore, the fork cylinder includes a cylinder body, one end of which is fitted onto the fork leg, and the other end is provided with a first connecting plate. The first connecting plate extends along the centerline of the cylinder body and is provided with a wheel hole for connecting a wheel axle.

[0009] Furthermore, the fork tube includes a tube body, one end of which is used to be fitted onto the fork leg, and the other end is provided with a wheel hole for connecting to the wheel axle; The outer wall of the cylinder is provided with a second connecting plate, and the second connecting plate is provided with a connecting hole for connecting a brake caliper.

[0010] Furthermore, the second connecting plate is provided with multiple connecting holes, which are adapted to the brake calipers of the forward-facing disc brake mechanism and the reverse-facing disc brake mechanism.

[0011] Furthermore, the fork leg is provided with a buckle, the fork tube is provided with a slot, the fork tube is sleeved on the fork leg, and the buckle is engaged with the slot.

[0012] By adopting the above technical solution, the front fork of this utility model has at least the following beneficial effects: It should be noted that the upright is used to connect the handlebar assembly, and the fork sleeve is fitted onto the fork leg. After connecting to the fork leg, it is used to connect the front wheel and the braking mechanism used to control the electric vehicle's braking. Therefore, when different braking methods need to be switched in an electric vehicle, it is only necessary to remove the fork sleeve from the fork leg and replace it with the fork sleeve corresponding to the braking method, without having to replace the entire fork. This makes the switching operation between different braking methods in an electric vehicle convenient and reduces replacement costs.

[0013] Based on the second objective mentioned above, this utility model provides an electric vehicle, which includes a frame, a front wheel and the aforementioned front fork, wherein the frame is connected to the upright of the front fork and the axle of the front wheel is connected to the fork tube of the front fork.

[0014] Furthermore, the electric vehicle also includes a braking mechanism, which is one of a mechanical drum brake mechanism, a hydraulic drum brake mechanism, a front disc brake mechanism, and a rear disc brake mechanism.

[0015] Furthermore, when the braking mechanism is a mechanical drum brake mechanism or a hydraulic drum brake mechanism, the braking mechanism includes a brake drum connected to the axle of the front wheel; When the braking mechanism is a mechanical drum brake mechanism, the fork cylinder includes a cylinder body, one end of the cylinder body is sleeved on the fork leg, and the other end is provided with a first connecting plate. The first connecting plate extends along the center line of the cylinder body, and the first connecting plate is provided with a wheel hole for connecting the wheel axle. When the braking mechanism is a hydraulic drum brake mechanism, the fork cylinder includes a cylinder body, one end of which is sleeved on the fork leg, and the other end is provided with a wheel hole for connecting the wheel axle.

[0016] Furthermore, when the braking mechanism is a forward-facing disc brake mechanism or a reverse-facing disc brake mechanism, the braking mechanism includes a brake disc connected to the front wheel and a brake caliper connected to the front fork. The fork cylinder includes a cylinder body, one end of which is fitted onto the fork leg, and the other end is provided with a wheel hole for connecting to the wheel axle; a second connecting plate is provided on the outer side wall of the cylinder body, and the second connecting plate is provided with a connecting hole for connecting to the brake caliper.

[0017] By adopting the above technical solution, the electric vehicle of this utility model has at least the following beneficial effects: By incorporating the aforementioned front fork into the electric vehicle, the electric vehicle thus possesses all the advantages of the aforementioned front fork, which will not be elaborated upon here. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the front wheel and mechanical drum brake mechanism mounted on the front fork provided in an embodiment of this utility model; Figure 2 A schematic diagram of the structure of the front wheel and hydraulic drum brake mechanism mounted on the front fork provided in an embodiment of this utility model; Figure 3 A schematic diagram of the structure for mounting the front wheel and the front disc brake mechanism on the front fork provided in an embodiment of this utility model; Figure 4 A schematic diagram of the structure for mounting the front wheel and the anti-reverse disc brake mechanism on the front fork provided in an embodiment of this utility model; Figure 5 One of the structural schematic diagrams of the front fork provided in this embodiment of the utility model; Figure 6 A second schematic diagram of the front fork provided in this embodiment of the present utility model; Figure 7 The third schematic diagram of the front fork provided in this embodiment of the utility model.

[0020] Figure label: 1-Fork frame; 11-Staff; 12-Fork leg; 13-Snap-on; 2-Fork housing; 21-House body; 22-Wheel hole; 23-First connecting plate; 24-Second connecting plate; 25-Connecting hole; 3-Frame; 4-Front wheel; 51-Brake drum; 52-Brake disc; 53-Brake caliper. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1 Please see Figure 1 This embodiment provides a front fork, which includes a front fork frame 1 and a front fork tube 2. The front fork frame 1 includes a column 11 and two front fork legs 12, both of which are connected to the column 11. The front fork tube 2 is sleeved on the front fork legs 12 and is detachably connected to the front fork legs 12.

[0025] It should be noted that the upright 11 is used to connect the handlebar assembly, and the fork sleeve 2 is fitted onto the fork leg 12. After being connected to the fork leg 12, it is used to connect the front wheel 4 and the braking mechanism used to control the electric vehicle's braking. Therefore, when different braking methods need to be switched in an electric vehicle, it is only necessary to remove the fork sleeve 2 from the fork leg 12 and replace it with the fork sleeve 2 corresponding to the braking method, without having to replace the entire fork. This makes the switching operation between different braking methods in an electric vehicle convenient and reduces replacement costs.

[0026] Preferably, please refer to Figure 2 and Figure 6In this embodiment, the fork tube 2 includes a tube body 21, one end of which is used to be sleeved on the fork leg 12, and the other end is provided with a wheel hole 22 for connecting the wheel axle.

[0027] In electric vehicles, when the braking mechanism is a hydraulic drum brake, one end of the cylinder 21 of the front fork cylinder 2 is fitted onto the front fork leg 12, and the wheel hole 22 at the other end is connected to the wheel axle. With this configuration, the brake drum 51 of the hydraulic drum brake mechanism can be connected to the wheel axle.

[0028] Preferably, please refer to Figure 1 and Figure 5 In this embodiment, the fork cylinder 2 includes a cylinder body 21. One end of the cylinder body 21 is used to be sleeved on the fork leg 12, and the other end is provided with a first connecting plate 23. The first connecting plate 23 extends along the center line of the cylinder body 21, and the first connecting plate 23 is provided with a wheel hole 22 for connecting the wheel axle.

[0029] In electric vehicles, when the braking mechanism is a mechanical drum brake, one end of the cylinder 21 of the front fork cylinder 2 is fitted onto the front fork leg 12, and the wheel hole 22 on the first connecting plate 23 at the other end is connected to the wheel axle. With this configuration, the brake drum 51 of the mechanical drum brake mechanism can be connected to the wheel axle.

[0030] It should be noted that in the existing technology, when the braking mechanism in an electric vehicle is a mechanical drum brake, the front fork is generally a front-mounted fork. In order to adjust the front-mounted fork to a centrally mounted fork suitable for hydraulic drum brake mechanisms, the wheel hole needs to be centered. After adjustment, the wheel axle is installed behind the wheel hole, and the front wheel is moved back accordingly, which changes the distance between the front wheel and the frame, that is, the trail of the electric vehicle increases, which has a great impact on the stability and flexibility of the vehicle when driving straight. Therefore, when the braking mechanism is a mechanical drum brake mechanism, in order to ensure that the trailing distance remains unchanged, a first connecting plate 23 is provided at one end of the cylinder 21, and the first connecting plate 23 extends along the center line of the cylinder 21. The wheel hole 22 for connecting the wheel axle is provided on the first connecting plate 23. Therefore, after the wheel axle and the front wheel 4 are installed, the position of the front wheel 4 axle to the vertical line to the ground changes accordingly, thereby reducing the trailing distance of the electric vehicle. This makes the trailing distance of the central front fork in this embodiment reach the same trailing distance as the front front fork, avoiding changes in the trailing distance, ensuring that the distance between the overall wheel system and the frame 3 platform is consistent, and ensuring the stability of the vehicle's straight-line driving and the convenience of steering.

[0031] Preferably, please refer to Figure 3 , Figure 4 and Figure 7 In this embodiment, the fork cylinder 2 includes a cylinder body 21. One end of the cylinder body 21 is used to be sleeved on the fork leg 12, and the other end is provided with a wheel hole 22 for connecting the wheel axle. A second connecting plate 24 is provided on the outer side wall of the cylinder body 21, and a connecting hole 25 for connecting the brake caliper 53 is provided on the second connecting plate 24.

[0032] In electric vehicles, when the braking mechanism is a disc brake, one end of the cylinder 21 of the front fork cylinder 2 is fitted onto the front fork leg 12, and the wheel hole 22 at the other end is connected to the wheel axle. The brake caliper 53 of the disc brake mechanism is connected to the cylinder 21 through the connecting hole 25.

[0033] Preferably, please refer to Figure 7 In this embodiment, the second connecting plate 24 is provided with multiple connecting holes 25, which are adapted to the brake calipers 53 of the forward-facing disc brake mechanism and the brake calipers 53 of the reverse-facing disc brake mechanism.

[0034] With this configuration, both the brake caliper 53 of the forward-facing disc brake mechanism and the brake caliper 53 of the reverse-facing disc brake mechanism can be connected to the cylinder 21 through the connecting hole 25. Therefore, the front fork cylinder 2 of this embodiment can be used for both forward-facing and reverse-facing disc brake mechanisms. When the braking mechanism of the electric vehicle is switched between the forward-facing and reverse-facing disc brake mechanisms, the front fork cylinder 2 does not need to be replaced, which improves the applicability of the front fork cylinder 2, further improves the convenience of replacing the braking mechanism and reduces the replacement cost.

[0035] Preferably, please refer to Figures 1-4 In this embodiment, a buckle 13 is provided on the front fork leg 12, and a slot is provided on the front fork tube 2. After the front fork tube 2 is sleeved on the front fork leg 12, the buckle 13 is engaged in the slot.

[0036] With this setup, when installing the fork tube 2, the fork tube 2 is fitted onto the fork leg 12, and the buckle 13 on the fork leg 12 is engaged in the slot on the fork tube 2, thus achieving the connection between the fork tube 2 and the fork leg 12. The installation is simple, convenient, and saves time and effort.

[0037] Example 2 Embodiment 2 provides an electric vehicle, which includes the front fork of Embodiment 1. The technical features of the front fork disclosed in Embodiment 1 are also applicable to this embodiment, and the technical features of the front fork disclosed in Embodiment 1 will not be described again. The implementation of the electric vehicle will be further described in detail below with reference to the accompanying drawings.

[0038] Please see Figure 5 The electric vehicle provided in this embodiment includes a frame 3, a front wheel 4 and the aforementioned front fork. The frame 3 is connected to the column 11 of the front fork, and the axle of the front wheel 4 is connected to the fork tube 2 of the front fork.

[0039] It should be noted that the electric vehicle in this embodiment can be an electric two-wheeler, an electric tricycle, or an electric motorcycle, etc.

[0040] The fork's upright 11 connects to the handlebar assembly, and the fork sleeve 2 is fitted onto the fork leg 12. After connecting to the fork leg 12, it connects to the front wheel 4 and the braking mechanism used to control the electric vehicle's braking. Therefore, when different braking methods need to be switched in an electric vehicle, it is only necessary to remove the fork sleeve 2 from the fork leg 12 and replace it with the fork sleeve 2 corresponding to the braking method, without having to replace the entire fork. This makes switching between different braking methods in an electric vehicle convenient and reduces replacement costs.

[0041] Preferably, in this embodiment, the electric vehicle further includes a braking mechanism, which is one of a mechanical drum brake mechanism, a hydraulic drum brake mechanism, a front disc brake mechanism, and a rear disc brake mechanism.

[0042] As the first feasible method, please refer to Figure 1 and Figure 2 When the braking mechanism is a mechanical drum brake mechanism or a hydraulic drum brake mechanism, the braking mechanism includes a brake drum 51 connected to the axle of the front wheel 4.

[0043] Please see below. Figure 1 and Figure 5 When the braking mechanism is a mechanical drum brake, the front fork cylinder 2 includes a cylinder body 21. One end of the cylinder body 21 is sleeved on the front fork leg 12, and the other end is provided with a first connecting plate 23. The first connecting plate 23 extends along the centerline of the cylinder body 21, and the first connecting plate 23 is provided with a wheel hole 22 for connecting the wheel axle; please refer to Figure 2 and Figure 6 When the braking mechanism is a hydraulic drum brake mechanism, the front fork cylinder 2 includes a cylinder body 21, one end of which is sleeved on the front fork leg 12, and the other end is provided with a wheel hole 22 for connecting the wheel axle.

[0044] As a second possible approach, please refer to Figure 3 and Figure 4 When the braking mechanism is a forward-facing disc brake or a reverse-facing disc brake, the braking mechanism includes a brake disc 52 connected to the front wheel 4 and a brake caliper 53 connected to the front fork 2.

[0045] At this time, please see Figure 7 The fork cylinder 2 includes a cylinder body 21, one end of which is fitted onto the fork leg 12, and the other end is provided with a wheel hole 22 for connecting the wheel axle; a second connecting plate 24 is provided on the outer side wall of the cylinder body 21, and a connecting hole 25 for connecting the brake caliper 53 is provided on the second connecting plate 24.

[0046] It should be noted that in the fork tube 2 of this embodiment, the tube body 21 can be an iron tube or an aluminum tube, and its material is not limited here.

[0047] In summary, in this embodiment, the fork tubes 2 are all centrally mounted. When changing the braking method in the same type of electric vehicle, only the fork tubes 2 on the fork need to be replaced, and the trail distance of the electric vehicle can be kept unchanged. This realizes the interchangeability of the same trail distance platform for four types of front wheel 4-series: mechanical drum brake fork, hydraulic drum brake fork, front disc brake fork, and rear disc brake fork. The fork tubes 2 in the front disc brake fork and the rear disc brake fork are interchangeable, ensuring that the overall wheel system and the frame 3 platform distance are consistent, thus ensuring the stability of the vehicle when driving straight and the convenience of steering.

[0048] The electric vehicle of this embodiment has the advantages of the front fork of Embodiment 1, which have been described in detail in Embodiment 1 and will not be repeated here.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A front fork, characterized in that, Including the fork frame and fork tube; The fork frame includes a column and two fork legs, both connected to the column. The fork sleeve is fitted onto the fork legs and is detachably connected to the fork legs.

2. The fork according to claim 1, characterized in that, The fork tube includes a tube body, one end of which is used to fit onto the fork leg, and the other end is provided with a wheel hole for connecting to the wheel axle.

3. The fork according to claim 1, characterized in that, The fork cylinder includes a cylinder body, one end of which is fitted onto the fork leg, and the other end is provided with a first connecting plate. The first connecting plate extends along the center line of the cylinder body and is provided with a wheel hole for connecting a wheel axle.

4. The fork according to claim 1, characterized in that, The fork tube includes a tube body, one end of which is used to be fitted onto the fork leg, and the other end is provided with a wheel hole for connecting to the wheel axle; The outer wall of the cylinder is provided with a second connecting plate, and the second connecting plate is provided with a connecting hole for connecting a brake caliper.

5. The fork according to claim 4, characterized in that, The second connecting plate has multiple connecting holes, which are adapted to the brake calipers of the forward-facing disc brake mechanism and the reverse-facing disc brake mechanism.

6. The fork according to any one of claims 1-5, characterized in that, The fork leg is provided with a buckle, the fork tube is provided with a slot, the fork tube is sleeved on the fork leg, and the buckle is engaged with the slot.

7. An electric vehicle, characterized in that, The vehicle includes a frame, a front wheel, and a front fork as described in any one of claims 1-6, wherein the frame is connected to the upright of the front fork, and the axle of the front wheel is connected to the fork tube of the front fork.

8. The electric vehicle according to claim 7, characterized in that, The electric vehicle also includes a braking mechanism, which is one of a mechanical drum brake mechanism, a hydraulic drum brake mechanism, a front disc brake mechanism, and a rear disc brake mechanism.

9. The electric vehicle according to claim 8, characterized in that, When the braking mechanism is a mechanical drum brake mechanism or a hydraulic drum brake mechanism, the braking mechanism includes a brake drum connected to the wheel axle of the front wheel; When the braking mechanism is a mechanical drum brake mechanism, the fork cylinder includes a cylinder body, one end of the cylinder body is sleeved on the fork leg, and the other end is provided with a first connecting plate. The first connecting plate extends along the center line of the cylinder body, and the first connecting plate is provided with a wheel hole for connecting the wheel axle. When the braking mechanism is a hydraulic drum brake mechanism, the fork cylinder includes a cylinder body, one end of which is sleeved on the fork leg, and the other end is provided with a wheel hole for connecting the wheel axle.

10. The electric vehicle according to claim 8, characterized in that, When the braking mechanism is a forward-mounted disc brake or a reverse-mounted disc brake, the braking mechanism includes a brake disc connected to the front wheel and a brake caliper connected to the front fork. The fork cylinder includes a cylinder body, one end of which is fitted onto the fork leg, and the other end is provided with a wheel hole for connecting to the wheel axle; a second connecting plate is provided on the outer side wall of the cylinder body, and the second connecting plate is provided with a connecting hole for connecting to the brake caliper.

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