Fork arm device, front fork and scooter

Abstract

The utility model relates to a kind of fork arm device, fork and scooter, the fork arm device includes: pipe body, shock absorber spring and adjusting component, the pipe cavity is equipped in the pipe body, the shock absorber spring is located in the pipe cavity, the adjusting component is located in one end of the pipe body, the adjusting component has abutment portion, the abutment portion is located in the pipe cavity, and the abutment portion is abutted with the shock absorber spring, the position of the abutment portion along the axial direction of the pipe cavity is adjustable, to adjust the compression amount of the shock absorber spring.The fork arm device of the utility model can adjust the initial elastic force of shock absorber spring, can match the user of different body weight or different driving habits, is favorable to improve user experience.

Description

Technical Field

[0001] This utility model relates to the field of mobility scooter technology, specifically to a fork arm device, a front fork, and a mobility scooter. Background Technology

[0002] When mobility scooters, bicycles, and electric bikes are driven on uneven roads, the vehicle is prone to vibration, resulting in a poor riding experience. In related technologies, mobility scooters typically have shock-absorbing devices installed at the front fork. These devices deform upon impact to cushion the ride. However, the shock-absorbing devices in these front fork structures cannot accommodate users of different weights or with different riding habits, resulting in poor shock absorption. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose a fork arm device that can adjust the initial elastic force of the shock absorber spring, which can match users with different weights or different driving habits, thus improving the user experience.

[0005] An embodiment of this utility model also proposes a front fork.

[0006] An embodiment of this utility model also proposes a mobility scooter.

[0007] The fork arm device of this utility model includes: a tube body with a cavity inside; a shock-absorbing spring disposed in the cavity; and an adjusting component disposed at one end of the tube body. The adjusting component has an abutment portion disposed in the cavity and abuts against the shock-absorbing spring. The position of the abutment portion along the axial direction of the cavity is adjustable to adjust the compression of the shock-absorbing spring.

[0008] According to an embodiment of the present invention, the fork arm device has an abutment portion located within the cavity, which abuts against the damping spring. The position of the abutment portion along the axial direction of the cavity is adjustable to adjust the compression of the damping spring. Therefore, the user can adjust the axial position of the abutment portion according to actual needs, thereby increasing or decreasing the initial spring force of the damping spring by adjusting its compression. Thus, the fork arm device of this embodiment can adjust the initial spring force of the damping spring to suit users of different weights or driving habits, improving the user experience.

[0009] In some embodiments, the adjusting component includes a threaded post that is threaded into the inner wall of the tube, and the abutting portion is located at one end of the threaded post near the damping spring.

[0010] In some embodiments, the adjusting component includes an adjusting member rotatably connected to the tube body, the adjusting member being disposed on the side of the threaded post opposite to the damping spring, and the adjusting member engaging with the threaded post in an anti-rotational manner.

[0011] In some embodiments, the threaded column has a first channel, the adjusting member passes through the first channel along the axial direction of the tube body, the adjusting member is anti-rotatingly engaged with the first channel, and the adjusting member is slidable relative to the first channel along the axial direction of the tube body.

[0012] In some embodiments, the adjusting member includes a shim and a fastener, the shim being disposed between the threaded post and the damping spring, and the fastener passing through the shim and connected to the adjusting member.

[0013] In some embodiments, the adjusting member includes a fastener that passes through the threaded post and is connected to the adjusting member.

[0014] In some embodiments, the pipe body includes a pipe body and a fixing sleeve, at least a portion of the fixing sleeve is disposed within the pipe body, the adjusting member is rotatably inserted through the fixing sleeve, and the threaded post is threadedly engaged with the fixing sleeve.

[0015] In some embodiments, the adjusting member includes a rotating member and an adjusting rod, the rotating member being disposed at the end of the adjusting rod opposite to the threaded post, and the adjusting rod being rotatably connected to the fixed sleeve.

[0016] In some embodiments, the adjusting component further includes a damping element, which is mounted on the adjusting rod and abuts against the inner wall of the fixing sleeve.

[0017] In some embodiments, the damping element includes an elastic element and a ball bearing. The adjusting rod has a mounting groove, the elastic element is disposed in the mounting groove, and the ball bearing is disposed at the opening of the mounting groove. The elastic element presses the ball bearing toward the inner wall of the fixing sleeve.

[0018] In some embodiments, there are at least two damping elements, which are arranged circumferentially spaced along the adjusting rod.

[0019] In some embodiments, the fork arm device further includes a first sealing ring, which is installed between the adjusting rod and the fixing sleeve.

[0020] In some embodiments, the fork arm device further includes a second sealing ring, which is installed between the fixing sleeve and the tube body.

[0021] In some embodiments, the fork arm device further includes a retaining ring disposed between the adjusting rod and the fixed sleeve to restrict the adjusting rod from moving relative to the fixed sleeve along the axial direction of the tube body.

[0022] In some embodiments, the adjusting member further includes a threaded member that passes radially through the rotating member along the adjusting rod and abuts against the adjusting rod.

[0023] In some embodiments, the outer wall of the fixing sleeve is threadedly engaged with the inner wall of the tube body.

[0024] Another embodiment of the present invention includes a front fork comprising any one of the fork arm devices described in the embodiments of the present invention.

[0025] According to an embodiment of the present invention, the front fork has an abutment portion in its adjusting component. This abutment portion is located within the cavity and abuts against the shock-absorbing spring. The position of the abutment portion along the axial direction of the cavity is adjustable to adjust the compression of the shock-absorbing spring. Therefore, the user can adjust the axial position of the abutment portion according to actual needs, thereby increasing or decreasing the initial spring force of the shock-absorbing spring by adjusting its compression. Thus, the front fork of this embodiment allows for adjustment of the initial spring force of the shock-absorbing spring to suit users of different weights or driving habits, improving the user experience.

[0026] Another embodiment of the mobility scooter of the present invention includes the front fork described in the embodiment of the present invention.

[0027] According to an embodiment of the present invention, the mobility scooter has an adjusting component with an abutment portion located within a cavity. This abutment portion abuts against a shock-absorbing spring, and its position along the axial direction of the cavity is adjustable to adjust the compression of the shock-absorbing spring. Therefore, the user can adjust the axial position of the abutment portion according to actual needs, thereby increasing or decreasing the initial spring force by adjusting the compression of the shock-absorbing spring. Thus, the mobility scooter of this embodiment can adjust the initial spring force of the shock-absorbing spring to suit users of different weights or driving habits, improving the user experience. Attached Figure Description

[0028] Figure 1 This is a partial schematic diagram of the front insertion in an embodiment of the present utility model.

[0029] Figure 2 This is a partial schematic diagram of the fork arm device according to an embodiment of the present utility model.

[0030] Figure 3 This is a partial schematic diagram of a fork arm device according to another embodiment of the present invention.

[0031] Figure 4 This is an exploded view of the fork arm device according to an embodiment of the present invention.

[0032] Figure 5 This is a partial cross-sectional view of the fork arm device according to an embodiment of the present invention.

[0033] Figure 6 This is a schematic diagram of the adjusting component of the fork arm device according to an embodiment of the present invention.

[0034] Figure 7 This is a cross-sectional view of the adjusting component of the fork arm device according to an embodiment of the present invention.

[0035] Figure 8 This is a cross-sectional view of the tube body and shock-absorbing spring of the fork arm device according to an embodiment of the present invention.

[0036] Figure label:

[0037] 1. Pipe body; 11. Pipe body; 12. Fixing sleeve; 13. Pipe lumen;

[0038] 2. Shock-absorbing springs;

[0039] 3. Adjusting component; 31. Threaded post; 311. Abutment part; 312. First channel; 32. Adjusting element; 321. Adjusting rod; 3211. Mounting groove; 322. Rotating element; 33. Shim; 34. Fastener; 35. Damping element; 351. Elastic element; 352. Ball bearing; 36. Threaded element;

[0040] 41. First sealing ring; 42. Second sealing ring; 43. Snap ring;

[0041] 5. Front fork riser;

[0042] 6. Crossbeam;

[0043] 7. Tube seat. Detailed Implementation

[0044] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0045] The following is a reference appendix. Figures 1 to 8 This invention describes a fork arm device, a front fork, and a mobility scooter according to embodiments of the present invention.

[0046] like Figures 1 to 8As shown, the fork arm device of this utility model embodiment includes: a tube body 1, a shock-absorbing spring 2, and an adjusting component 3. The tube body 1 has a cavity 13, the shock-absorbing spring 2 is disposed in the cavity 13, and the adjusting component 3 is disposed at one end of the tube body 1. The adjusting component 3 has an abutment part 311, which is disposed in the cavity 13 and abuts against the shock-absorbing spring 2. The position of the abutment part 311 along the axial direction of the cavity 13 is adjustable to adjust the compression of the shock-absorbing spring 2.

[0047] According to the fork arm device of the present invention, the adjusting component 3 has an abutment portion 311, which is disposed within the cavity 13 and abuts against the shock-absorbing spring 2. The position of the abutment portion 311 along the axial direction of the cavity 13 is adjustable to adjust the compression of the shock-absorbing spring 2. Therefore, the user can adjust the position of the abutment portion 311 along the axial direction of the cavity 13 according to actual needs, thereby increasing or decreasing the initial elastic force of the shock-absorbing spring 2 by adjusting the compression of the shock-absorbing spring 2. Therefore, the fork arm device of the present invention can adjust the initial elastic force of the shock-absorbing spring 2 to match users of different weights or different driving habits, which is beneficial to improving the user experience.

[0048] like Figures 4 to 7 As shown, the adjusting component 3 is located at the upper end of the tube body 1, and the position of the abutment part 311 along the axial direction of the tube cavity 13 is adjustable, that is, the position of the abutment part 311 is adjustable in the vertical direction. Therefore, when the user needs a softer suspension, the abutment part 311 can be moved upwards, at which point the shock-absorbing spring 2 extends, thereby reducing the initial elastic force of the shock-absorbing spring 2. When the user needs a stiffer suspension, the abutment part 311 can be moved downwards, at which point the shock-absorbing spring 2 shortens, thereby increasing the initial elastic force of the shock-absorbing spring 2.

[0049] Optionally, such as Figures 4 to 7 As shown, the adjusting component 3 includes a threaded post 31, which is threaded into the inner wall of the tube body 1. An abutment portion 311 is located at the end of the threaded post 31 near the damping spring 2. It can be understood that the threaded post 31 can rotate helically within the tube body 1 to change its axial position along the tube cavity 13, thereby adjusting the compression of the damping spring 2 to increase or decrease its initial elastic force.

[0050] like Figures 4 to 7 As shown, the adjusting component 3 includes an adjusting element 32, which is rotatably connected to the pipe body 1. The adjusting element 32 is located on the side of the threaded post 31 away from the damping spring 2, and the adjusting element 32 and the threaded post 31 are anti-rotatingly engaged. It can be understood that the anti-rotating engagement of the adjusting element 32 and the threaded post 31 means that the adjusting element 32 and the threaded post 31 will not rotate relative to each other. In other words, when the user or the electric actuator drives the adjusting element 32 to rotate, the threaded post 31 can rotate synchronously with the adjusting element 32.

[0051] The fork arm device of this utility model is designed with the adjustment component 3 as an "adjustment component 32 + threaded post 31" structure, which makes the structure of the adjustment component 3 simple, easy to process and manufacture, and convenient for users to adjust.

[0052] Optionally, such as Figure 5 and Figure 7 As shown, the threaded column 31 has a first channel 312. The adjusting member 32 passes through the first channel 312 along the axial direction of the tube body 1. The adjusting member 32 is anti-rotatingly engaged with the first channel 312, and the adjusting member 32 is slidable relative to the first channel 312 along the axial direction of the tube body 1. It can be understood that when the adjusting member 32 rotates relative to the tube body 1, since the adjusting member 32 is slidable relative to the first channel 312 along the axial direction of the tube body 1, the axial position of the adjusting member 32 can remain stationary (i.e., the adjusting member 32 only rotates circumferentially and does not move axially), and drives the threaded column 31 to move along the axial direction of the tube body 1.

[0053] When the user rotates the adjusting component 32, the axial position of the adjusting component 32 can remain unchanged, but the threaded column 31 inside the tube body 1 can move axially accordingly, thereby improving the convenience of user adjustment.

[0054] For example, the cross-sectional profile of the first channel 312 is polygonal, and the cross-sectional profile of the lower region of the adjusting member 32 is also polygonal. There is a gap between the adjusting member 32 and the first channel 312, and the adjusting member 32 and the first channel 312 are engaged in an anti-rotational manner. For example, the cross-sectional profiles of the first channel 312 and the adjusting member 32 are both regular hexagons.

[0055] Optionally, such as Figure 4 , Figure 5 and Figure 7 As shown, the adjusting component 3 includes a shim 33 and a fastener 34. The shim 33 is disposed between the threaded post 31 and the damping spring 2, and the fastener 34 passes through the shim 33 and is connected to the adjusting component 32. It can be understood that the shim 33 increases the contact area between the adjusting component 3 and the damping spring 2, as well as the smoothness of the contact between the adjusting component 3 and the damping spring 2. Furthermore, the fastener 34 passing through the shim 33 and connected to the adjusting component 32 facilitates the assembly of the adjusting component 3.

[0056] For example, the fastener 34 is a bolt. The fastener 34, the washer 33 and the threaded post 31 are all separate structures. The fastener 34 passes through the washer 33 in a bottom-to-top direction and extends into the first channel 312. The upper end of the fastener 34 is screwed into the adjusting member 32 to fix the adjusting member 3.

[0057] In another example, the gasket 33 and the threaded post 31 can be integrally molded, thereby reducing the number of parts to be assembled and improving assembly efficiency.

[0058] In other examples, the adjusting component 3 includes a fastener 34 that passes through the threaded post 31 and is connected to the adjusting component 32. That is, the threaded post 31 can directly abut against the damping spring 2, the fastener 34 passes through the threaded post 31 in a bottom-to-top direction and extends into the first channel 312, and the upper end of the fastener 34 is screwed into the adjusting component 32 to fix the adjusting component 3.

[0059] Optionally, such as Figure 4 , Figure 5 and Figure 8 As shown, the pipe body 1 includes a pipe body 11 and a fixing sleeve 12. At least a portion of the fixing sleeve 12 is disposed within the pipe body 11. The adjusting member 32 is rotatably inserted through the fixing sleeve 12, and the threaded post 31 is threadedly engaged with the fixing sleeve 12. It can be understood that the fixing sleeve 12 is fitted at the upper end of the pipe body 11. The threaded post 31 is threadedly engaged with the fixing sleeve 12 so that the threaded post 31 can move along the vertical direction of the pipe body 1. By designing the pipe body 1 with the above-described structure, the fork arm device of this embodiment of the present invention can locally thicken the area where the adjusting member 3 is installed on the pipe body 1, which helps to ensure the structural strength of the fork arm device.

[0060] For example, such as Figure 8 As shown, the outer wall of the fixing sleeve 12 is threadedly engaged with the inner wall of the pipe body 11, which facilitates the processing and manufacturing of the pipe body 1 and makes it easier to assemble and disassemble the pipe body 11 and the fixing sleeve 12.

[0061] Optionally, such as Figure 4 , Figure 5 and Figure 7 As shown, the adjusting component 32 includes a rotating component 322 and an adjusting rod 321. The rotating component 322 is located at the end of the adjusting rod 321 opposite to the threaded post 31, and the adjusting rod 321 is rotatably connected to the fixed sleeve 12. It can be understood that the rotating component 322 is located on the outside of the tube body 1, and the user can apply a torsional force to the rotating component 322 to rotate the adjusting rod 321, thereby improving the convenience of adjusting the fork arm device.

[0062] For example, such as Figure 2 and Figure 3 As shown, the rotating component 322 can be a knob, dial, or lever, or other structural component that allows the user to apply torsional force.

[0063] For example, the rotating component 322 and the adjusting rod 321 are separate structures, that is, the rotating component 322 and the adjusting rod 321 are detachably connected. Figure 4 As shown, the adjusting component 3 also includes a threaded component 36, which passes through the rotating component 322 radially along the adjusting rod 321 and abuts against the adjusting rod 321, thereby improving the stability of the rotating component 322 and the adjusting rod 321 after assembly.

[0064] Optionally, such as Figure 4 , Figure 5 and Figure 7 As shown, the adjusting component 3 also includes a damping element 35, which is mounted on the adjusting rod 321 and abuts against the inner wall of the fixing sleeve 12. It can be understood that the damping element 35 is used to apply a certain damping force to the inner wall of the fixing sleeve 12 to prevent the adjusting rod 321 from rotating relative to the fixing sleeve 12 during riding.

[0065] When the user needs to adjust the initial elastic force of the shock absorber spring 2, a torsional force can be applied to the adjusting rod 321 through the rotating component 322. When the torsional force is greater than the damping force of the damping component 35, the adjusting rod 321 can be rotated to adjust the axial position of the threaded column 31, thereby changing the compression of the shock absorber spring 2.

[0066] Optionally, such as Figure 7 As shown, the damping element 35 includes an elastic element 351 and a ball bearing 352. The adjusting rod 321 has a mounting groove 3211. The elastic element 351 is located within the mounting groove 3211, and the ball bearing 352 is located at the opening of the mounting groove 3211. The elastic element 351 presses against the ball bearing 352 towards the inner wall of the fixing sleeve 12. It can be understood that the elastic element 351 can compress the ball bearing 352, causing the ball bearing 352 to elastically abut against the inner wall of the fixing sleeve 12. The fork arm device of this embodiment, by designing the damping element 35 with the above structure, facilitates the assembly of the damping element 35 and extends its service life.

[0067] For example, there are at least two damping elements 35, which are arranged circumferentially at intervals along the adjusting rod 321, thereby improving the stability of the contact between the damping elements 35 and the inner wall of the fixed sleeve 12, as well as the smoothness of the adjustment rod 321 when rotating.

[0068] Optionally, such as Figure 5 As shown, the fork arm device also includes a first sealing ring 41, which is installed between the adjusting rod 321 and the fixing sleeve 12. This seals the installation gap between the adjusting rod 321 and the fixing sleeve 12, thereby reducing the entry of rainwater, dust, and other debris into the pipe body 1.

[0069] like Figure 5 As shown, the fork arm device also includes a second sealing ring 42, which is installed between the fixing sleeve 12 and the pipe body 11. This seals the installation gap between the fixing sleeve 12 and the pipe body 11, thereby reducing the entry of rainwater, dust, and other debris into the pipe body 1.

[0070] For example, the first sealing ring 41 and the second sealing ring 42 can be elastic rubber rings.

[0071] Optionally, such as Figure 5 As shown, the fork arm device also includes a retaining ring 43, which is disposed between the adjusting rod 321 and the fixing sleeve 12 to restrict the movement of the adjusting rod 321 relative to the fixing sleeve 12 along the axial direction of the tube body 1, thereby improving the stability of the adjusting rod 321 after installation.

[0072] For example, the retaining ring 43 can be a structural component such as a retaining spring.

[0073] like Figure 1 As shown, the fork arm device also includes a tube seat 7. The lower end of the tube body 1 is telescopically installed in the tube seat 7. The lower end of the shock-absorbing spring 2 abuts against the tube seat 7. When the fork arm device is compressed, the tube body 1 can extend and retract relative to the tube seat 7 in the up and down direction, and the shock-absorbing spring 2 will be compressed and accumulate elastic potential energy to buffer and dampen the mobility scooter.

[0074] Another embodiment of the present invention includes a fork arm device of the present invention.

[0075] According to the front fork of this embodiment, the adjusting component 3 has an abutment portion 311, which is disposed within the cavity 13 and abuts against the shock absorber spring 2. The position of the abutment portion 311 along the axial direction of the cavity 13 is adjustable to adjust the compression of the shock absorber spring 2. Therefore, the user can adjust the position of the abutment portion 311 along the axial direction of the cavity 13 according to actual needs, thereby increasing or decreasing the initial elastic force of the shock absorber spring 2 by adjusting the compression of the shock absorber spring 2. Therefore, the front fork of this embodiment can adjust the initial elastic force of the shock absorber spring 2 to match users of different weights or different driving habits, which is beneficial to improving the user experience.

[0076] The fork includes a fork steerer tube 5, a crossbeam 6, and two fork arm assemblies. The lower end of the fork steerer tube 5 is connected to the crossbeam 6, and the two fork arm assemblies are respectively arranged on the left and right sides of the crossbeam 6.

[0077] Another embodiment of the mobility scooter of this utility model includes the front fork of this utility model. The technical effects of the mobility scooter of this utility model are the same as the technical effects of the front fork and fork arm device of this utility model, and will not be described in detail here.

[0078] For example, a mobility scooter can be a scooter, bicycle, electric vehicle, motorcycle, or other similar vehicle.

[0079] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 are not intended to 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.

[0080] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0081] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0082] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0083] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0084] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A fork arm device, characterized in that, include: A tube body (1) is provided with a cavity (13) inside the tube body (1); A shock-absorbing spring (2) is disposed inside the cavity (13); Adjustment component (3) is provided at one end of the tube body (1). The adjustment component (3) has an abutment part (311) which is provided in the tube cavity (13) and abuts against the shock-absorbing spring (2). The position of the abutment part (311) along the axial direction of the tube cavity (13) is adjustable to adjust the compression of the shock-absorbing spring (2).

2. The fork arm device according to claim 1, characterized in that, The adjusting component (3) includes a threaded post (31), which is threaded to the inner wall of the tube body (1), and the abutment part (311) is located at one end of the threaded post (31) near the shock-absorbing spring (2).

3. The fork arm device according to claim 2, characterized in that, The adjusting component (3) includes an adjusting member (32), which is rotatably connected to the tube body (1). The adjusting member (32) is located on the side of the threaded post (31) away from the shock-absorbing spring (2), and the adjusting member (32) and the threaded post (31) are engaged in a non-rotating manner.

4. The fork arm device according to claim 3, characterized in that, The threaded column (31) is provided with a first channel (312), and the adjusting member (32) passes through the first channel (312) along the axial direction of the tube body (1). The adjusting member (32) is anti-rotatingly engaged with the first channel (312), and the adjusting member (32) is slidable relative to the first channel (312) along the axial direction of the tube body (1).

5. The fork arm device according to claim 3, characterized in that, The adjusting component (3) includes a shim (33) and a fastener (34). The shim (33) is disposed between the threaded post (31) and the shock-absorbing spring (2). The fastener (34) passes through the shim (33) and is connected to the adjusting component (32). Alternatively, the adjusting component (3) may include a fastener (34) which passes through the threaded post (31) and is connected to the adjusting component (32).

6. The fork arm device according to claim 3, characterized in that, The tube body (1) includes a tube body (11) and a fixing sleeve (12). At least a portion of the fixing sleeve (12) is disposed inside the tube body (11). The adjusting member (32) is rotatably inserted through the fixing sleeve (12). The threaded post (31) is threadedly engaged with the fixing sleeve (12).

7. The fork arm device according to claim 6, characterized in that, The adjusting member (32) includes a rotating member (322) and an adjusting rod (321). The rotating member (322) is located at one end of the adjusting rod (321) away from the threaded post (31). The adjusting rod (321) is rotatably connected to the fixed sleeve (12).

8. The fork arm device according to claim 7, characterized in that, The adjusting component (3) further includes a damping element (35), which is installed on the adjusting rod (321) and abuts against the inner wall of the fixing sleeve (12).

9. The fork arm device according to claim 8, characterized in that, The damping element (35) includes an elastic element (351) and a ball (352). The adjusting rod (321) is provided with a mounting groove (3211). The elastic element (351) is located in the mounting groove (3211). The ball (352) is located at the opening of the mounting groove (3211). The elastic element (351) presses the ball (352) towards the inner wall of the fixing sleeve (12). And / or, there are at least two damping elements (35), and the two damping elements (35) are arranged circumferentially spaced along the adjusting rod (321).

10. The fork arm device according to claim 7, characterized in that, The fork arm device also includes a first sealing ring (41), which is installed between the adjusting rod (321) and the fixing sleeve (12); And / or, the fork arm device further includes a second sealing ring (42), which is installed between the fixing sleeve (12) and the tube body (11); And / or, the fork arm device further includes a retaining ring (43) disposed between the adjusting rod (321) and the fixing sleeve (12) to restrict the adjusting rod (321) from moving relative to the fixing sleeve (12) along the axial direction of the tube body (1); And / or, the adjusting component (3) further includes a threaded component (36) that passes radially through the adjusting rod (321) into the rotating component (322) and abuts against the adjusting rod (321); And / or, the outer wall of the fixing sleeve (12) is threadedly engaged with the inner wall of the tube body (11).

11. A front fork, characterized in that, Includes the fork arm device according to any one of claims 1-10.

12. A mobility scooter, characterized in that, Includes the fork as described in claim 11.

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