Scooter steering damping device and scooter

Abstract

The utility model discloses a scooter steering damping device and a scooter, the scooter steering damping device comprises a frame, a steering shaft, a front wheel assembly, a steering plate and an elastic sheet, the steering shaft is pivoted to the frame; the front wheel assembly is connected with the frame; the steering plate is arranged at the bottom end of the steering shaft and hinged to the front wheel assembly. The elastic piece comprises a mounting part, a first arc-shaped section and a second arc-shaped section, the mounting part is connected with the frame, and the first arc-shaped section obliquely extends upwards from one end of the mounting part to the direction close to the second arc-shaped section and is connected with the second arc-shaped section; the second arc-shaped section obliquely extends downwards from one end of the first arc-shaped section to the direction close to the other end of the mounting part and is connected with the mounting part, the first arc-shaped section is configured to abut against one end of the steering plate, and the second arc-shaped section is configured to abut against the other end of the steering plate; a buffer space is defined by the first arc-shaped section, the second arc-shaped section and the steering plate. The utility model provides a steering damping device which is favorable for reducing the flexibility of a steering shaft during steering.

Description

Technical Field

[0001] This utility model relates to the technical field of mobility scooters, and in particular to a steering damping device for a mobility scooter and the mobility scooter itself. Background Technology

[0002] In the current market, the steering systems of most electric mobility scooters lack damping devices, resulting in overly flexible steering. When starting and stopping, the stability of directional control is poor, and it is easy to veer off course. This poses a significant safety hazard, especially on wet roads or slippery surfaces such as ceramic tiles. Utility Model Content

[0003] Therefore, it is necessary to provide a steering damping device to solve the above-mentioned technical problems.

[0004] A steering damping device for a mobility scooter, the steering damping device comprising:

[0005] Frame,

[0006] A steering shaft, which is pivotally connected to the vehicle frame;

[0007] Front wheel assembly;

[0008] A steering plate, one end of which is fixed to the bottom end of the steering shaft, and the other end of which is hinged to the front wheel assembly;

[0009] The spring includes a mounting portion, a first arc-shaped segment, and a second arc-shaped segment. The mounting portion is connected to the vehicle frame. The first arc-shaped segment extends obliquely upward from one end of the mounting portion toward the second arc-shaped segment and connects to the second arc-shaped segment. The second arc-shaped segment extends obliquely downward from one end of the first arc-shaped segment toward the other end of the mounting portion and connects to the mounting portion. The first arc-shaped segment is configured to abut against one end of the steering plate, and the second arc-shaped segment is configured to abut against the other end of the steering plate. A buffer space is formed between the first arc-shaped segment, the second arc-shaped segment, and the steering plate.

[0010] Optionally, the first arc segment and the second arc segment form a U-shape, and the first arc segment and the second arc segment are inclined downward from the inner side to the outer side.

[0011] Optionally, the mounting portion includes a first mounting portion and a second mounting portion. One end of the first mounting portion is connected to the front wheel assembly, and the other end of the first mounting portion is connected to the first arc-shaped segment. One end of the second mounting portion is connected to the vehicle frame, and the other end of the second mounting portion is connected to the second arc-shaped segment.

[0012] Optionally, the first mounting part includes a first mounting end and a first connecting end, the first mounting end being connected to the vehicle frame, and the first connecting end being disposed between the first mounting end and the first arc-shaped segment; the second mounting part includes a second mounting end and a second connecting end, the second mounting end being connected to the vehicle frame, and the second connecting end being disposed between the second mounting end and the second arc-shaped segment.

[0013] Optionally, the first mounting end extends downward and connects to the first connecting end, and the first mounting end is substantially perpendicular to the first arc segment.

[0014] Optionally, the steering plate includes a first substrate and a second substrate, the second substrate being inclined downward relative to the first substrate, a protrusion being formed between the first substrate and the second substrate, the first arc segment being configured to abut against one end of the protrusion, the second arc segment being configured to abut against the other end of the protrusion, and a buffer space being formed between the first arc segment, the second arc segment and the protrusion.

[0015] Optionally, the front wheel assembly includes a first front wheel assembly and a second front wheel assembly, wherein the first front wheel assembly and the second front wheel assembly are located on both sides of the steering axle;

[0016] The first front wheel assembly and the second front wheel assembly each include a wheel and a support rod, one end of the support rod being connected to the wheel and the other end of the support rod being configured to be connected to the vehicle frame.

[0017] Optionally, it also includes a linkage assembly, which includes a first link and a second link. One end of the first link is hinged to one end of the steering plate, and the other end of the first link is hinged to the first front wheel assembly. One end of the second link is hinged to the other end of the steering plate, and the other end of the second link is hinged to the second front wheel assembly.

[0018] Optionally, it also includes a first steering knuckle and a second steering knuckle, one end of the first steering knuckle being hinged to the first connecting rod and the other end being hinged to the first front wheel assembly, one end of the second steering knuckle being hinged to the second connecting rod and the other end being hinged to the second front wheel assembly.

[0019] A mobility scooter, the mobility scooter including the aforementioned steering damping device.

[0020] This invention provides a steering damping device. A spring is provided, with a first arc-shaped segment extending obliquely upwards from one end of the mounting portion towards a second arc-shaped segment and connecting to the second arc-shaped segment. The second arc-shaped segment extends obliquely downwards from one end of the first arc-shaped segment towards the other end of the mounting portion. During steering, either the first or second arc-shaped segment rubs against the steering plate. By increasing friction between the spring and the steering plate, a certain degree of damping is achieved during steering, which helps reduce the flexibility of the steering shaft during steering, improves the stability of directional control, and solves the problem of excessively flexible steering posing significant safety hazards. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the steering damping device in one embodiment;

[0023] Figure 2 This is a schematic diagram of the structure of the steering shaft, steering plate and spring in one embodiment;

[0024] Figure 3 This is a schematic diagram of the steering plate in one embodiment;

[0025] Figure 4 This is a schematic diagram of the spring sheet structure in one embodiment;

[0026] Figure 5 This is a schematic diagram of a mobility scooter that includes a steering damping device in one embodiment;

[0027] Figure 6 A bottom view of the mobility scooter in one embodiment;

[0028] Figure 7 for Figure 6 Enlarged view of point A.

[0029] 1. Steering shaft; 2. Front wheel assembly; 21. First front wheel assembly; 22. Second front wheel assembly; 23. Wheel; 24. Load-bearing rod; 3. Steering plate; 31. Protrusion; 32. First base plate; 33. Second base plate; 4. Spring; 41. Mounting part; 411. First mounting part; 412. Second mounting part; 413. First mounting end; 414. First connecting end; 415. Second mounting end; 416. Second connecting end; 42. First arc segment; 43. Second arc segment; 44. Buffer space; 45. Inner side; 46. Outer side; 5. Linkage assembly; 51. First link; 52. Second link; 6. First steering knuckle; 7. Second steering knuckle; 8. Frame.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0035] refer to Figures 1 to 4 This invention provides a steering damping device for a personal mobility vehicle. The device includes a frame 8, a steering shaft 1, a front wheel assembly 2, a steering plate 3, and a spring plate 4. The steering shaft 1 is pivotally connected to the frame 8, the front wheel assembly 2 is connected to the frame 8, one end of the steering plate 3 is fixed to the bottom end of the steering shaft 1, and the other end of the steering plate 3 is hinged to the front wheel assembly 2. The steering plate 3 has a protrusion 31. The spring plate 4 includes a mounting portion 41, a first arc-shaped segment 42, and a second arc-shaped segment 43. The mounting portion 41 is connected to the frame 8, and the first arc-shaped segment 42 is... One end of the mounting portion 41 extends obliquely upward toward the second arc-shaped segment 43 and connects to the second arc-shaped segment 43. The second arc-shaped segment 43 extends obliquely downward from one end of the first arc-shaped segment 42 toward the other end of the mounting portion 41 and connects to the mounting portion 41. The first arc-shaped segment 42 is configured to abut against one end of the protrusion 31, and the second arc-shaped segment 43 is configured to abut against the other end of the protrusion 31. A buffer space 44 is formed between the first arc-shaped segment 42, the second arc-shaped segment 43, and the protrusion 31.

[0036] When the steering damping device is in its initial state, the middle part of the first arc segment 42 abuts against one end of the protrusion 31, and the middle part of the second arc segment 43 abuts against the other end of the protrusion 31. When the steering shaft 1 drives the steering plate 3 to rotate towards the direction closer to the first arc segment 42, the protrusion 31 moves towards the direction closer to the second arc segment 43. Since the first arc segment 42 is formed by extending obliquely upwards, the part of the protrusion 31 that abuts against the first arc segment 42 moves into the buffer space 44, that is, the protrusion 31 disengages from the first arc segment 42. At the same time, the part of the protrusion 31 that abuts against the second arc segment 43 continues to move along the second arc segment 43. Since the second arc segment 43 extends obliquely downwards from one end of the first arc segment 42 towards the other end closer to the mounting part 41, the obliquely downward-extending second arc segment 43 continues to rub against the protrusion 31, thereby causing the mobility scooter to rotate towards the direction closer to the first arc segment 42. There is a certain damping sensation when turning, and the friction increases with the depth of the turn. The greater the distance that the protrusion 31 moves in the second arc segment 43, the greater the damping force on the steering plate 3. When the steering shaft 1 drives the steering plate 3 to rotate towards the direction closer to the second arc segment 43, the protrusion 31 moves towards the direction closer to the first arc segment 42. The part of the protrusion 31 that abuts against the second arc segment 43 moves into the buffer space 44, that is, the protrusion 31 and the second arc segment 43 disengage. At the same time, the part of the protrusion 31 that abuts against the first arc segment 42 continues to move along the first arc segment 42. The first arc segment 42 and the protrusion 31 continue to rub against each other, and the friction increases with the depth of the turn. Thus, when the scooter turns towards the direction closer to the second arc segment 43, there is a certain damping sensation when turning. The greater the distance that the protrusion 31 moves in the first arc segment 42, the greater the damping force received by the steering plate 3.

[0037] This invention provides a steering damping device, which includes a spring plate 4. The first arc-shaped segment 42 of the spring plate 4 extends obliquely upward from one end of the mounting part 41 toward the second arc-shaped segment 43 and connects to the second arc-shaped segment 43. The second arc-shaped segment 43 extends obliquely downward from one end of the first arc-shaped segment 42 toward the other end of the mounting part 41. When turning, the first arc-shaped segment 42 or the second arc-shaped segment 43 rubs against the steering plate 3. By increasing the friction between the spring plate 4 and the steering plate 3, a certain damping feeling is provided when turning, which helps to reduce the flexibility of the steering shaft 1 when turning, improves the stability of directional control, and solves the problem of excessive flexibility when turning, which poses a great safety hazard.

[0038] refer to Figures 1-4 The mounting part 41 includes a first mounting part 411 and a second mounting part 412. The first mounting part 411 includes a first mounting end 413 and a first connecting end 414. The first mounting end 413 is connected to the frame 8.

[0039] The first mounting end 413 extends downward and smoothly transitions to one end of the first connecting end 414. The other end of the first connecting end 414 smoothly transitions to the first arc segment 42. The first mounting end 413 is approximately perpendicular to the first arc segment 42. The first arc segment 42 extends obliquely upward from one end of the first connecting end 414 toward the direction close to the second arc segment 43 and connects to the second arc segment 43.

[0040] The second mounting portion 412 includes a second mounting end 415 and a second connecting end 416. The second mounting end 415 is connected to the frame 8. The second mounting end 415 extends downward and smoothly transitions to one end of the second connecting end 416. The other end of the second connecting end 416 smoothly transitions to the second arc-shaped segment 43. The second mounting end 415 is approximately perpendicular to the second arc-shaped segment 43. The second arc-shaped segment 43 extends obliquely downward from one end of the first arc-shaped segment 42 toward the direction close to the second connecting end 416 and connects to the second mounting end 415.

[0041] Specifically, the first mounting part 411 and the second mounting part 412 have the same structure and dimensions, and are symmetrically arranged. The first arc-shaped segment 42 and the second arc-shaped segment 43 have the same structure and dimensions, and are symmetrically arranged. Figure 4 As shown, the first arc segment 42 and the second arc segment 43 form a U-shape, as... Figure 2 As shown, the first arc segment 42 and the second arc segment 43 are inclined downward from the inner side 45 to the outer side 46.

[0042] refer to Figure 1 and Figure 3 The steering plate 3 includes a first substrate 32 and a second substrate 33. The first substrate 32 is inclined downwards, and the second substrate 33 is inclined downwards from one end of the first substrate 32. The first substrate 32 and the second substrate 33 are bent together to form a protrusion 31, that is, the middle of the steering plate 3 protrudes relative to the two ends. By locally concentrating the friction force, the risk of slippage during steering can be reduced, especially on wet and slippery roads or when making sharp turns.

[0043] The front wheel assembly 2 includes a first front wheel assembly 21 and a second front wheel assembly 22, which are located on both sides of the steering axle 1. The first front wheel assembly 21 and the second front wheel assembly 22 each include a wheel 23 and a support rod 24. One end of the support rod 24 is connected to the wheel 23, and the other end of the support rod 24 is configured to be connected to the vehicle frame.

[0044] Specifically, the first mounting end 413 is fixedly connected to the frame with screws, and the second mounting end 415 is fixedly connected to the frame with screws.

[0045] refer to Figures 1-4The steering damping device also includes a link assembly 5, which includes a first link 51 and a second link 52. The steering damping device also includes a first steering knuckle 6 and a second steering knuckle. One end of the first link 51 is hinged to one end of the steering plate 3, and the other end of the first link 51 is hinged to one end of the first steering knuckle 6. The other end of the first steering knuckle 6 is hinged to the wheel 23 of the first front wheel assembly 21. One end of the second link 52 is hinged to the other end of the steering plate 3, and the other end of the second link 52 is hinged to one end of the second steering knuckle. The other end of the second steering knuckle is hinged to the wheel 23 of the second front wheel assembly 22.

[0046] When turning, the steering shaft 1 is rotated, which drives the steering plate 3 to rotate. The steering plate 3 drives the first link 51 and the second link 52 to move respectively. The first link 51 drives the wheel 23 of the first front wheel assembly 21 to rotate around the first steering knuckle 6, and the second link 52 drives the wheel 23 of the second front wheel assembly 22 to move around the second steering knuckle.

[0047] refer to Figures 5-7 The present invention also provides a mobility scooter, which includes the aforementioned steering damping device.

[0048] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A steering damping device for a mobility scooter, characterized in that, include: Frame; A steering shaft, which is pivotally connected to the vehicle frame; A front wheel assembly, which is connected to the vehicle frame; A steering plate, one end of which is fixed to the bottom end of the steering shaft, and the other end of which is hinged to the front wheel assembly; The spring includes a mounting portion, a first arc-shaped segment, and a second arc-shaped segment. The mounting portion is connected to the vehicle frame. The first arc-shaped segment extends obliquely upward from one end of the mounting portion toward the second arc-shaped segment and connects to the second arc-shaped segment. The second arc-shaped segment extends obliquely downward from one end of the first arc-shaped segment toward the other end of the mounting portion and connects to the mounting portion. The first arc-shaped segment is configured to abut against one end of the steering plate, and the second arc-shaped segment is configured to abut against the other end of the steering plate. A buffer space is formed between the first arc-shaped segment, the second arc-shaped segment, and the steering plate.

2. The steering damping device according to claim 1, characterized in that, The first arc segment and the second arc segment form a U-shape, and the first arc segment and the second arc segment are inclined downward from the inner side to the outer side.

3. The steering damping device according to claim 1, characterized in that, The mounting portion includes a first mounting portion and a second mounting portion. One end of the first mounting portion is connected to the vehicle frame, and the other end of the first mounting portion is connected to the first arc-shaped segment. One end of the second mounting portion is connected to the vehicle frame, and the other end of the second mounting portion is connected to the second arc-shaped segment.

4. The steering damping device according to claim 3, characterized in that, The first mounting part includes a first mounting end and a first connecting end. The first mounting end is connected to the vehicle frame, and the first connecting end is disposed between the first mounting end and the first arc-shaped segment. The second mounting part includes a second mounting end and a second connecting end. The second mounting end is connected to the vehicle frame, and the second connecting end is disposed between the second mounting end and the second arc-shaped segment.

5. The steering damping device according to claim 4, characterized in that, The first mounting end extends downward and connects to the first connecting end, and the first mounting end is approximately perpendicular to the first arc segment.

6. The steering damping device according to claim 1, characterized in that, The steering plate includes a first substrate and a second substrate. The second substrate is inclined downward relative to the first substrate. A protrusion is formed between the first substrate and the second substrate. The first arc segment is configured to abut one end of the protrusion, and the second arc segment is configured to abut the other end of the protrusion. A buffer space is formed between the first arc segment, the second arc segment, and the protrusion.

7. The steering damping device according to claim 1, characterized in that, The front wheel assembly includes a first front wheel assembly and a second front wheel assembly, the first front wheel assembly and the second front wheel assembly being located on both sides of the steering shaft; The first front wheel assembly and the second front wheel assembly each include a wheel and a support rod, one end of the support rod being connected to the wheel and the other end of the support rod being configured to be connected to the vehicle frame.

8. The steering damping device according to claim 7, characterized in that, It also includes a linkage assembly, which includes a first link and a second link. One end of the first link is hinged to one end of the steering plate, and the other end of the first link is hinged to the first front wheel assembly. One end of the second link is hinged to the other end of the steering plate, and the other end of the second link is hinged to the second front wheel assembly.

9. The steering damping device according to claim 8, characterized in that, It also includes a first steering knuckle and a second steering knuckle, one end of the first steering knuckle is hinged to the first connecting rod and the other end is hinged to the first front wheel assembly, one end of the second steering knuckle is hinged to the second connecting rod and the other end of the second steering knuckle is hinged to the second front wheel assembly.

10. A mobility scooter, characterized in that, The mobility scooter includes a steering damping device as described in any one of claims 1-9.

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