Scooter with damping function

Abstract

The utility model relates to the technical field of scooters for old people, in particular to a scooter with a damping function. The scooter comprises a wheel assembly, a damping assembly and a frame assembly. The wheel assembly and the frame assembly form the scooter, and the two first elastic pieces of the damping assembly are arranged on a front support of the wheel assembly at intervals with the symmetry center face in the length direction of the front support as the symmetry center face. The first elastic piece is arranged between the front support of the wheel assembly and the frame assembly. One end of the first elastic piece is detachably connected with the front support, and the other end of the first elastic piece is fixedly connected with the frame assembly. One end of the steering unit penetrates through the frame assembly to be hinged to the front support, and the other end extends in the direction away from the ground. The steering unit of the wheel assembly is rotationally connected with the frame assembly. The length of the first elastic piece can be compressed by external force. Therefore, the problem that the mobility scooter for old people lacks a cushioning function is solved.

Description

Technical Field

[0001] This utility model relates to the field of mobility scooters for the elderly, and more specifically, to a mobility scooter with shock absorption. Background Technology

[0002] With the arrival of an aging society, mobility scooters for the elderly are widely used in their daily travel. However, existing mobility scooters experience significant vibrations when driving on uneven roads, affecting ride comfort and stability. Most existing models have failed to effectively address the front suspension issue, lacking sufficient cushioning and shock absorption. Especially during prolonged use or on complex road conditions, the vibrations can adversely affect the health of the elderly. For example, CN118753417A discloses a folding mobility scooter, including a frame unit and a seat unit. The frame unit includes a front frame and a rear frame, with the rear ends of the front frame rotatably connected to the front ends of the rear frame. The inner sides of the rear ends of the front frame are provided with unfolding hooks and folding hooks arranged at intervals. The seat unit includes a seat cushion body, with pivots on both sides of the seat cushion body. The pivots are rotatably engaged with mounting holes located at the armrest mounting ends. This utility model achieves the unfolding or folding of the entire vehicle by setting a foldable frame unit, and at the same time, it provides a foldable armrest structure to further reduce the volume of the entire vehicle after folding. The frame unit can maintain good engagement and fixation with the unfolding locking post and the folding locking post by utilizing the locking action of the unfolding hook and the folding hook, which significantly improves the stability of the frame structure. The armrest structure located on both sides of the seat cushion can be locked when unfolding or folding the armrests. When adjusting the armrests, the usage state can be quickly switched by pressing the tabs, making operation and use convenient. The aforementioned mobility scooters only consider the issue of folding and storage, without taking into account the driving safety of the scooters and the impact of prolonged vibration on the driver's safety.

[0003] Therefore, there is an urgent need for an improved front shock absorption structure to enhance the user experience of mobility scooters for the elderly. Utility Model Content

[0004] To address the problem of poor shock absorption in elderly mobility scooters, this utility model provides a mobility scooter with shock absorption, comprising:

[0005] A wheel assembly includes a front wheel unit, a rear wheel unit, a drive unit, and a steering unit; the front wheel unit includes a front wheel and a front bracket; two front wheels are rotatably connected to both ends of the front bracket; the rear wheel unit includes a rear wheel and a rear bracket; two rear wheels are rotatably connected to both ends of the rear bracket; the drive unit drives the rear wheel to rotate; the steering unit drives the angle between the front wheel and the front bracket to change.

[0006] A shock-absorbing assembly, the shock-absorbing assembly including two first elastic elements; the two first elastic elements are spaced apart on the front bracket with the symmetry center plane in the length direction of the front bracket as the symmetry center plane;

[0007] A frame assembly, one end of which is hinged to one side of the front support and the other end of which is fixedly connected to the rear wheel unit; the frame assembly and the front support are spaced apart in a direction perpendicular to the ground; a first elastic member is disposed between the front support and the frame assembly; one end of the first elastic member is detachably connected to the front support and the other end of which is detachably connected to the frame assembly; one end of the steering unit passes through the frame assembly and is movably connected to the front support, and the other end extends in a direction away from the ground; the steering unit is rotatably connected to the frame assembly;

[0008] The mobility scooter also includes a shock-absorbing state; the shock-absorbing state includes a reduction in the distance between the front bracket and the frame assembly, and the first elastic element being compressed in length under force.

[0009] In some embodiments, B > 0.3 * A; where A is the distance between the two front wheels and B is the distance between the two first elastic elements.

[0010] In some embodiments, the frame assembly includes a first frame unit, a second frame unit, a tie rod unit, a support unit, and a seat unit; the first frame unit is spaced apart from the front support; one side of the first frame unit is hinged to one side of the front support; the steering unit passes through the first frame unit; the steering unit is rotatably connected to the first frame unit; one end of the first frame unit is hinged to one end of the second frame unit; one end of the second frame unit away from the first frame unit is hinged to the support unit; one end of the support unit is hinged to the seat unit, and the other end is fixedly connected to the rear support; two support units are spaced apart on both sides of the seat unit along the travel direction of the vehicle; one end of the tie rod unit is hinged to the first frame unit, and the other end is hinged to the second frame unit;

[0011] The mobility scooter also includes an unfolded state and a folded state. In the unfolded state, the front wheel and the rear wheel maintain a first distance, the axes of the first frame unit, the second frame unit, and the pull rod unit are parallel to the direction of travel of the mobility scooter, the support unit is naturally extended, and the seat unit is spaced a first distance from the second frame unit. In the folded state, the front wheel and the rear wheel maintain a second distance, the axes of the first frame unit, the second frame unit, and the pull rod unit are perpendicular to the direction of travel of the mobility scooter, the support unit is retracted, and the seat unit is spaced a second distance from the second frame unit. The second distance is smaller than the first distance, and the second distance is smaller than the first distance.

[0012] In some embodiments, the first frame unit includes a shock absorber rod, a limiting cylinder, a first connecting rod, and a second connecting rod; one side of the limiting cylinder is fixedly connected to the middle position of the shock absorber rod along its length; the steering unit passes through the limiting cylinder; the steering unit is rotatably connected to the limiting cylinder; one end of the first connecting rod is fixedly connected to the side of the shock absorber rod opposite to the limiting cylinder, and the other end is hinged to one side of the front bracket; two first connecting rods are spaced apart on the shock absorber rod with the symmetry center plane along the length of the shock absorber rod as the symmetry center plane; one end of the first elastic element is fixedly connected to the shock absorber rod, and the other end is detachably connected to the front bracket; one side of the second connecting rod is fixedly connected to one end of the shock absorber rod; two second connecting rods are respectively disposed at both ends of the shock absorber rod; one end of the second connecting rod is hinged to one end of the second frame unit, and the other end is hinged to the tie rod unit.

[0013] In some embodiments, the front support includes a first rod, a second rod, a third rod, and a fourth rod; one end of the first rod is rotatably connected to the center of the front wheel, and the other end is hinged to the end of the second rod; two first rods are respectively disposed at both ends of the second rod; one end of the third rod is fixedly connected to one side of the first rod, and the other end is hinged to the end of the steering unit near the ground; one end of the fourth rod is fixedly connected to one side of the second rod, and the other end is hinged to the end of the first connecting rod away from the shock absorber; two fourth rods are spaced apart on the second rod with a symmetry center plane along the length direction of the second rod as the symmetry center plane; the end of the first elastic member away from the shock absorber is detachably connected to the second rod.

[0014] In some embodiments, C > 0.3 * A; where C is the distance between the hinged positions of the two first connecting rods and the fourth rod.

[0015] In some embodiments, the steering unit includes a steering rod, a steering fork, and a transmission rod; one end of the steering rod is detachably connected to one end of the steering fork, and the other end extends in a direction away from the ground; one end of the transmission rod is hinged to the end of the steering fork away from the steering rod, and the other end is hinged to the end of the third rod away from the first rod.

[0016] In some embodiments, the second frame unit includes a first rod, a first pedal, a second rod, and a second pedal; the first rod has a first hinge point, a second hinge point, and a third hinge point; the first hinge point and the second hinge point are respectively located at both ends of the first rod; the third hinge point is located adjacent to the second hinge point; the second rod has a fourth hinge point, a fifth hinge point, and a sixth hinge point; the fourth hinge point and the fifth hinge point are respectively located at both ends of the second rod; the sixth hinge point is located adjacent to the fourth hinge point; the first hinge point is hinged to one end of the second connecting rod; the second hinge point is hinged to the support unit; the third hinge point is hinged to the fourth hinge point; the fifth hinge point is hinged to the support unit; the sixth hinge point is hinged to the end of the pull rod unit away from the second connecting rod; two first rods are spaced apart on both sides of the first pedal along the travel direction of the mobility scooter; two second rods are spaced apart on both sides of the second pedal along the travel direction of the mobility scooter.

[0017] The unfolded state also includes the position where the second hinge point of the first rod is hinged to the support unit and abuts against the side of the second rod away from the ground; the folded state also includes one side of the support unit adjacent to the side of the second rod away from the ground, and the first rod, the second rod, and the pull rod unit are arranged adjacent to each other.

[0018] In some embodiments, the support unit includes a first support rod, a second support rod, and a third support rod; the first support rod and the second support rod are arranged intersectingly; one side of the first support rod at its midpoint along its length is hinged to one side of the second support rod at its midpoint along its length; one end of the first support rod is fixedly connected to the rear bracket, and the other end is hinged to the seat unit; the fifth hinge point of the second support rod is hinged to the end of the first support rod near the rear bracket; one end of the second support rod is hinged to one end of the third support rod, and the other end is hinged to the second hinge point of the first support rod; the end of the third support rod away from the second support rod is hinged to the seat unit; the first support rod and the third support rod are spaced apart on the seat unit.

[0019] In some embodiments, the shock-absorbing assembly further includes a second elastic member; one end of the second elastic member is fixedly connected to the first frame unit, and the other end extends toward the front bracket; the axis of the second elastic member coincides with the symmetry center plane of the first frame unit;

[0020] The mobility scooter also includes a second shock absorption state; the second shock absorption state includes the second elastic element abutting against the front bracket and being compressed by force; the first shock absorption state also includes the second elastic element being spaced apart from the front bracket.

[0021] To address the lack of shock absorption in elderly mobility scooters, this invention offers the following advantages:

[0022] By incorporating a first elastic element of the shock-absorbing component between the frame assembly and the front support, the compression property of this first elastic element under external force can effectively mitigate the impact of road vibrations on the mobility scooter's operation, improving riding comfort. This allows the mobility scooter to be used on uneven roads, reducing the bumps experienced by elderly riders, improving their riding experience, and ensuring their safety while riding. Attached Figure Description

[0023] Figure 1 A schematic diagram of a shock-absorbing mobility scooter of one embodiment is shown;

[0024] Figure 2 A schematic diagram of another embodiment of a mobility scooter with shock absorption is shown;

[0025] Figure 3 A schematic diagram of another embodiment of the mobility scooter with shock absorption is shown;

[0026] Figure 4 A front view of a shock-absorbing mobility scooter according to one embodiment is shown;

[0027] Figure 5 A bottom view of a shock-absorbing mobility scooter according to one embodiment is shown;

[0028] Figure 6 A side view of a shock-absorbing mobility scooter according to one embodiment is shown;

[0029] Figure 7 It shows Figure 6 A cross-sectional view (AA) of the shock-absorbing mobility scooter in the embodiment;

[0030] Figure 8 A schematic diagram of the folding of a shock-absorbing mobility scooter according to one embodiment is shown.

[0031] Reference numerals: 01 Wheel assembly; 11 Front wheel unit; 111 Front wheel; 112 Front support; 1121 First rod; 1122 Second rod; 1123 Third rod; 1124 Fourth rod; 12 Rear wheel unit; 121 Rear wheel; 122 Rear support; 13 Drive unit; 14 Steering unit; 141 Steering rod; 142 Steering fork; 143 Drive rod; 02 Shock absorber assembly; 21 First elastic element; 22 Second elastic element; 03 Frame assembly; 31 First frame unit; 311 Shock absorber bar; 312 Limiting cylinder; 313 First link; 314 Second link; 32 Second frame unit; 321 First rod; 322 First pedal; 323 Second rod; 324 Second pedal; 33 Tie rod unit; 34 Support unit; 341 First support rod; 342 Second support rod; 343 Third support rod; 35 Seat unit. Detailed Implementation

[0032] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0033] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0034] Current models of mobility scooters for the elderly rarely include shock absorption, affecting the driving experience. Prolonged bumpy rides significantly impact the safety of elderly passengers. Therefore, this embodiment discloses a mobility scooter with shock absorption, such as... Figure 1 , Figure 2 As shown, a mobility scooter with shock absorption may include a wheel assembly 01, a shock absorption assembly 02, and a frame assembly 03.

[0035] The wheel assembly 01 includes a front wheel unit 11, a rear wheel unit 12, a drive unit 13, and a steering unit 14. The front wheel unit 11 includes a front wheel 111 and a front support 112. The two front wheels 111 are rotatably connected to both ends of the front support 112. The rear wheel unit 12 includes a rear wheel 121 and a rear support 122. The two rear wheels 121 are rotatably connected to both ends of the rear support 122. The drive unit 13 drives the rear wheel 121 to rotate. The drive unit 13 is also a motor, which can be mounted on the rear support 122 or the frame assembly 03, or embedded inside the rear wheel 121. The steering unit 14 drives the angle between the front wheel 111 and the front support 112 to change. Depending on the driving perspective, when the steering unit 14 rotates clockwise, the vehicle can turn right; when the steering unit 14 rotates counterclockwise, the vehicle can turn left.

[0036] The shock absorption assembly 02 includes two first elastic elements 21. The two first elastic elements 21 are spaced apart on the front support 112 with the symmetrical center plane along the length of the front support 112 as the symmetrical center plane. This arrangement can improve the balance of the mobility scooter.

[0037] One end of the frame assembly 03 is hinged to one side of the front support 112, and the other end is fixedly connected to the rear wheel unit 12. The frame assembly 03 and the front support 112 are spaced apart in a direction perpendicular to the ground. A first elastic member 21 is disposed between the front support 112 and the frame assembly 03. One end of the first elastic member 21 is detachably connected to the front support 112, and the other end is detachably connected to the frame assembly 03. One end of the steering unit 14 passes through the frame assembly 03 and is movably connected to the front support 112, and the other end extends away from the ground. The steering unit 14 and the front support 112 can be connected by a multi-link transmission. The steering unit 14 is rotatably connected to the frame assembly 03. The frame assembly 03 limits the functions of the front wheel unit 11, the rear wheel unit 12, and the steering unit 14 in series, thereby enabling the driver to perform a series of driving operations such as wheel steering on the frame assembly 03 through the steering unit 14. Since the frame assembly 03 needs to support the driver, a shock-absorbing component 02 is installed between the frame assembly 03 and the front support 112. This effectively reduces the vibration transmitted from road bumps to the frame assembly 03, improving riding comfort. The frame assembly 03 can be a one-piece fixed frame or a foldable frame.

[0038] The mobility scooter also includes a shock-absorbing mode. The shock-absorbing mode involves reducing the distance between the front support 112 and the frame assembly 03, causing the first elastic element 21 to compress its own length. The first elastic element 21 can be a spring or a damper, etc., which absorbs vibration energy and reduces the impact of vibration on the mobility scooter's operation.

[0039] In this embodiment, as Figure 7As shown, B > 0.3 * A. Here, A is the distance between the two front wheels 111, and B is the distance between the two first elastic members 21. The distance between the two first elastic members 21 is at least greater than 0.3 times the distance between the two front wheels 111, thus ensuring that during the movement of the mobility scooter, as... Figure 4 As shown, the difference in distance between the two ends of the frame assembly 03 and the front bracket 112 is small, thereby ensuring a small change in shock absorption and relative force between the steering unit 14 and the frame assembly 03, improving the smoothness of steering by the steering unit 14 and the balance of the frame assembly 03. Considering structural compactness, the distance between the two first elastic elements 21 can be less than 0.7A.

[0040] In this embodiment, as Figure 2 , Figure 3 As shown, the frame assembly 03 includes a first frame unit 31, a second frame unit 32, a tie rod unit 33, a support unit 34, and a seat unit 35. The first frame unit 31 is spaced apart from the front support 112. One side of the first frame unit 31 is hinged to one side of the front support 112. A steering unit 14 passes through the first frame unit 31 and is rotatably connected to the first frame unit 31. One end of the first frame unit 31 is hinged to one end of the second frame unit 32. The end of the second frame unit 32 away from the first frame unit 31 is hinged to the support unit 34. One end of the support unit 34 is hinged to the seat unit 35, and the other end is fixedly connected to the rear support 122. The two support units 34 are spaced apart on both sides of the seat unit 35 along the direction of travel of the vehicle. One end of the tie rod unit 33 is hinged to the first frame unit 31, and the other end is hinged to the second frame unit 32. The seat unit 35 can be a fixed seat or a foldable seat.

[0041] The mobility scooter also includes unfolded and folded states. For example... Figure 3 , Figure 6 As shown, the unfolded state can include the front wheel 111 and the rear wheel 121 maintaining a first distance, the axes of the first frame unit 31, the second frame unit 32, and the tie rod unit 33 being parallel to the direction of travel of the mobility scooter, the support unit 34 naturally extending, and the seat unit 35 being spaced a first distance from the second frame unit 32. Figure 8 As shown, in the folded state, the front wheel 111 and the rear wheel 121 maintain a second distance, the axes of the first frame unit 31, the second frame unit 32, and the tie rod unit 33 are perpendicular to the direction of travel of the mobility scooter, the support unit 34 is retracted, and the seat unit 35 is spaced a second distance from the second frame unit 32. The second distance is smaller than the first distance.

[0042] The foldable frame assembly 03 improves the portability of the scooter and reduces storage space.

[0043] In this embodiment, as Figure 3 , Figure 4 As shown, the first frame unit 31 includes a shock absorber 311, a limiting cylinder 312, a first connecting rod 313, and a second connecting rod 314. One side of the limiting cylinder 312 is fixedly connected to the middle position of the shock absorber 311 along its length. A steering unit 14 passes through the limiting cylinder 312. The steering unit 14 is rotatably connected to the limiting cylinder 312. One end of the first connecting rod 313 is fixedly connected to the side of the shock absorber 311 opposite to the limiting cylinder 312, and the other end is hinged to one side of the front bracket 112. Two first connecting rods 313 are spaced apart on the shock absorber 311 with the symmetrical center plane along the length of the shock absorber 311 as the center plane of symmetry. One end of the first elastic member 21 is fixedly connected to the shock absorber 311, and the other end is detachably connected to the front bracket 112. One side of the second connecting rod 314 is fixedly connected to one end of the shock absorber 311. Two second connecting rods 314 are respectively located at both ends of the shock absorber 311. One end of the second link 314 is hinged to one end of the second frame unit 32, and the other end is hinged to the tie rod unit 33.

[0044] With the above configuration, the limiting sleeve 312 ensures that the steering unit 14 can only move along its own axial or circumferential direction, guaranteeing the steering angle of the mobility scooter. The first link 313 connects the shock absorber 311 to the front bracket 112, and the second link 314 connects the shock absorber 311 to the second frame unit 32 and the tie rod unit 33 respectively, thereby improving the compactness of the mobility scooter structure, reducing unnecessary connection structures, and the first link 313, together with the shock absorber assembly 02, can effectively reduce the vibration of the mobility scooter caused by road bumps.

[0045] In this embodiment, as Figure 3 , Figure 4 As shown, the front bracket 112 includes a first rod 1121, a second rod 1122, a third rod 1123, and a fourth rod 1124. One end of the first rod 1121 is rotatably connected to the center of the front wheel 111, and the other end is hinged to the end of the second rod 1122. The two first rods 1121 are respectively disposed at both ends of the second rod 1122. One end of the third rod 1123 is fixedly connected to one side of the first rod 1121, and the other end is hinged to the end of the steering unit 14 near the ground. One end of the fourth rod 1124 is fixedly connected to one side of the second rod 1122, and the other end is hinged to the end of the first connecting rod 313 away from the shock absorber 311. The two fourth rods 1124 are spaced apart on the second rod 1122 with the symmetrical center plane in the length direction of the second rod 1122 as the symmetrical center plane. The end of the first elastic member 21 away from the shock absorber 311 is detachably connected to the second rod 1122.

[0046] The hinge between the first rod 1121 and the second rod 1122, and the hinge between the third rod 1123 and the steering unit 14, allows the front wheel 111 to swing. Driven by the steering unit 14, the angle between the front wheel 111 and the second rod 1122 changes to achieve steering of the mobility scooter.

[0047] Furthermore, to prevent the two front wheels 111 from turning outwards and affecting driving safety, after the fourth link 1124 is hinged to the first connecting rod 313, the positional relationship between its hinge shaft and the shock absorber assembly 02 is set front-to-back in the direction of travel of the mobility scooter. If the positional relationship between the hinge shaft and the first elastic element 21 of the shock absorber assembly 02 is set to the left and right on the same side, the two front wheels 111 will turn outwards when encountering bumps during driving.

[0048] In this embodiment, as Figure 5 As shown, C > 0.3 * A; where C is the distance between the hinge positions of the two first connecting rods 313 and the fourth rod portion 1124. The distance between the hinge positions of the two first connecting rods 313 and the fourth rod portion 1124 can also be the distance between the two first connecting rods 313. Considering the compactness of the structure and the space limitations for installing the mobility scooter, the distance between the two first connecting rods 313 can be less than 0.7A. With the above arrangement, the tendency of one end of the frame assembly 03 to tilt towards the other end relative to the front bracket 112 during the driving process of the mobility scooter can be reduced, resulting in a smaller change in the relative force between the limiting cylinder 312 and the steering unit 14, thereby improving the driving comfort of the mobility scooter.

[0049] In this embodiment, as Figure 4 , Figure 7 As shown, the steering unit 14 includes a steering rod 141, a steering fork 142, and a transmission rod 143. One end of the steering rod 141 is detachably connected to one end of the steering fork 142, and the other end extends away from the ground. One end of the transmission rod 143 is hinged to the end of the steering fork 142 away from the steering rod 141, and the other end is hinged to the end of the third rod portion 1123 away from the first rod portion 1121. The steering rod 141 is also the handlebars of the scooter. The driver can control the handlebars to swerve clockwise or counterclockwise, so that the swerving angle is transmitted sequentially through the steering rod 141, steering fork 142, transmission rod 143, and third rod portion 1123 to the first rod portion 1121, thereby changing the angle between the front wheel 111 and the second rod portion 1122 to achieve steering. Figure 5 As shown, the end of the steering fork 142 that is hinged to the drive rod 143 is forked into a fork shape, so that it can be connected to the two drive rods 143, thereby ensuring that the two front wheels 111 turn at the same angle.

[0050] In this embodiment, as Figure 3As shown, the second frame unit 32 includes a first rod 321, a first pedal 322, a second rod 323, and a second pedal 324. The first rod 321 has a first hinge point, a second hinge point, and a third hinge point. The first and second hinge points are respectively located at both ends of the first rod 321. The third hinge point is located adjacent to the second hinge point. The second rod 323 has a fourth hinge point, a fifth hinge point, and a sixth hinge point. The fourth and fifth hinge points are respectively located at both ends of the second rod 323. The sixth hinge point is located adjacent to the fourth hinge point. The first hinge point is hinged to one end of the second connecting rod 314. The second hinge point is hinged to the support unit 34. The third hinge point is hinged to the fourth hinge point. The fifth hinge point is hinged to the support unit 34. The sixth hinge point is hinged to the end of the pull rod unit 33 away from the second connecting rod 314. The two first rods 321 are spaced apart on both sides of the first pedal 322 along the direction of travel of the mobility scooter. Two second poles 323 are spaced apart and positioned on either side of the second pedal 324 along the direction of travel of the mobility scooter. This arrangement enables the frame assembly 03 to be foldable, thereby improving the portability of the mobility scooter.

[0051] like Figure 6 As shown, the unfolded state also includes the position where the second hinge point of the first frame 321 is hinged to the support unit 34, abutting against the side of the second frame 323 away from the ground. The distance between the second hinge point and the sixth hinge point can be smaller than the distance between the fourth hinge point and the sixth hinge point. Since the rotational stroke of the second hinge point is larger than that of the fourth hinge point, when the first frame 321 is pressed down, it will abut against the second frame 323. The second hinge point, the fourth hinge point, and the sixth hinge point are locked together, thereby ensuring that the frame assembly 03 will not dent towards the ground when unfolded.

[0052] like Figure 8 As shown, the folded state also includes one side of the support unit 34 adjacent to the side of the second pole 323 away from the ground, and the first pole 321, the second pole 323, and the pull rod unit 33 are arranged adjacent to each other. When the mobility scooter retracts, the hinge points of the first pole 321 and the second support pole 342, and the hinge points of the pull rod unit 33 and the second pole 323, all move away from the ground. Ultimately, the angle between the first pole 321 and the second pole 323 becomes an acute angle, the angle between the pull rod unit 33 and the second pole 323 becomes an acute angle, and the angle between the second support pole 342 and the third support pole 343 becomes an acute angle.

[0053] In this embodiment, as Figure 3 , Figure 6As shown, the support unit 34 includes a first support rod 341, a second support rod 342, and a third support rod 343. The first support rod 341 and the second support rod 342 are arranged intersectingly. One side of the first support rod 341 at its midpoint along its length is hinged to one side of the second support rod 342 at its midpoint along its length. One end of the first support rod 341 is fixedly connected to the rear bracket 122, and the other end is hinged to the seat unit 35. The fifth hinge point of the second support rod 323 is hinged to the end of the first support rod 341 near the rear bracket 122. One end of the second support rod 342 is hinged to one end of the third support rod 343, and the other end is hinged to the second hinge point of the first support rod 321. The end of the third support rod 343 away from the second support rod 342 is hinged to the seat unit 35. The first support rod 341 and the third support rod 343 are spaced apart on the seat unit 35. With the above configuration, a stable triangular support is formed for the seat unit 35 when the frame assembly 03 is unfolded, ensuring the driver's comfort and safety. When the frame assembly 03 is folded, the support unit 34 can retract, thereby reducing the space required for storage.

[0054] In this embodiment, as Figure 7 As shown, the shock absorption assembly 02 also includes a second elastic element 22. One end of the second elastic element 22 is fixedly connected to the first frame unit 31, and the other end extends towards the front support 112. The axis of the second elastic element 22 coincides with the symmetry center plane of the first frame unit 31. The mobility scooter also includes a second shock absorption state; the second shock absorption state includes the second elastic element 22 abutting against the front support 112 and being compressed by force; the first shock absorption state also includes the second elastic element 22 being spaced apart from the front support 112. When the second elastic element 22 is naturally extended, the second elastic element 22 is spaced apart from the front support 112. When the mobility scooter encounters a large road bump, the distance between the front support 112 and the shock absorber 311 decreases sharply, and the shock absorption effect of the first elastic element 21 is limited. In order to ensure the shock absorption effect and protect the safety of the driver, emergency shock absorption can be achieved through the second elastic element 22. The elastic modulus of the second elastic element 22 can be larger than that of the first elastic element 21, so as to ensure the relatively smooth flexible damping of the first elastic element 21 and the reliability of the second elastic element 22 in emergency damping.

[0055] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.

Claims

1. A personal mobility vehicle with shock absorption, characterized in that, The shock-absorbing mobility scooter includes: A wheel assembly includes a front wheel unit, a rear wheel unit, a drive unit, and a steering unit; the front wheel unit includes a front wheel and a front bracket; two front wheels are rotatably connected to both ends of the front bracket; the rear wheel unit includes a rear wheel and a rear bracket; two rear wheels are rotatably connected to both ends of the rear bracket; the drive unit drives the rear wheel to rotate; the steering unit drives the angle between the front wheel and the front bracket to change. A shock-absorbing assembly, the shock-absorbing assembly including two first elastic elements; the two first elastic elements are spaced apart on the front bracket with the symmetry center plane in the length direction of the front bracket as the symmetry center plane; A frame assembly, one end of which is hinged to one side of the front support and the other end of which is fixedly connected to the rear wheel unit; the frame assembly and the front support are spaced apart in a direction perpendicular to the ground; a first elastic member is disposed between the front support and the frame assembly; one end of the first elastic member is detachably connected to the front support and the other end of which is detachably connected to the frame assembly; one end of the steering unit passes through the frame assembly and is movably connected to the front support, and the other end extends in a direction away from the ground; the steering unit is rotatably connected to the frame assembly; The mobility scooter also includes a first shock absorption state; the first shock absorption state includes a reduction in the distance between the front support and the frame assembly, and the first elastic element being compressed in length under force.

2. The shock-absorbing mobility scooter according to claim 1, characterized in that, B > 0.3 * A; where A is the distance between the two front wheels and B is the distance between the two first elastic elements.

3. A mobility scooter with shock absorption according to claim 1, characterized in that, The frame assembly includes a first frame unit, a second frame unit, a tie rod unit, a support unit, and a seat unit; the first frame unit is spaced apart from the front support; one side of the first frame unit is hinged to one side of the front support; the steering unit passes through the first frame unit; the steering unit is rotatably connected to the first frame unit; one end of the first frame unit is hinged to one end of the second frame unit; one end of the second frame unit away from the first frame unit is hinged to the support unit; one end of the support unit is hinged to the seat unit, and the other end is fixedly connected to the rear support; two support units are spaced apart on both sides of the seat unit along the travel direction of the vehicle; one end of the tie rod unit is hinged to the first frame unit, and the other end is hinged to the second frame unit; The mobility scooter also includes an unfolded state and a folded state. In the unfolded state, the front wheel and the rear wheel maintain a first distance, the axes of the first frame unit, the second frame unit, and the pull rod unit are parallel to the direction of travel of the mobility scooter, the support unit is naturally extended, and the seat unit is spaced a first distance from the second frame unit. In the folded state, the front wheel and the rear wheel maintain a second distance, the axes of the first frame unit, the second frame unit, and the pull rod unit are perpendicular to the direction of travel of the mobility scooter, the support unit is retracted, and the seat unit is spaced a second distance from the second frame unit. The second distance is smaller than the first distance, and the second distance is smaller than the first distance.

4. A mobility scooter with shock absorption according to claim 3, characterized in that, The first frame unit includes a shock absorber rod, a limiting cylinder, a first connecting rod, and a second connecting rod; one side of the limiting cylinder is fixedly connected to the middle position of the shock absorber rod along its length; the steering unit passes through the limiting cylinder; the steering unit is rotatably connected to the limiting cylinder; one end of the first connecting rod is fixedly connected to the side of the shock absorber rod opposite to the limiting cylinder, and the other end is hinged to one side of the front bracket; two first connecting rods are spaced apart on the shock absorber rod with the symmetry center plane along the length of the shock absorber rod as the symmetry center plane; one end of the first elastic element is fixedly connected to the shock absorber rod, and the other end is detachably connected to the front bracket; one side of the second connecting rod is fixedly connected to one end of the shock absorber rod; two second connecting rods are respectively disposed at both ends of the shock absorber rod; one end of the second connecting rod is hinged to one end of the second frame unit, and the other end is hinged to the tie rod unit.

5. A mobility scooter with shock absorption according to claim 4, characterized in that, The front support includes a first rod, a second rod, a third rod, and a fourth rod. One end of the first rod is rotatably connected to the center of the front wheel, and the other end is hinged to the end of the second rod. Two first rods are respectively disposed at both ends of the second rod. One end of the third rod is fixedly connected to one side of the first rod, and the other end is hinged to the end of the steering unit near the ground. One end of the fourth rod is fixedly connected to one side of the second rod, and the other end is hinged to the end of the first connecting rod away from the shock absorber. Two fourth rods are spaced apart on the second rod with a symmetrical center plane along the length direction of the second rod as the center plane of symmetry. The end of the first elastic member away from the shock absorber is detachably connected to the second rod.

6. A mobility scooter with shock absorption according to claim 5, characterized in that, C > 0.3 * A; where C is the distance between the hinged positions of the two first connecting rods and the fourth rod.

7. A mobility scooter with shock absorption according to claim 5, characterized in that, The steering unit includes a steering rod, a steering fork, and a transmission rod; one end of the steering rod is detachably connected to one end of the steering fork, and the other end extends away from the ground; one end of the transmission rod is hinged to the end of the steering fork away from the steering rod, and the other end is hinged to the end of the third rod away from the first rod.

8. A mobility scooter with shock absorption according to claim 4, characterized in that, The second frame unit includes a first rod, a first pedal, a second rod, and a second pedal. The first rod has a first hinge point, a second hinge point, and a third hinge point. The first hinge point and the second hinge point are respectively located at both ends of the first rod. The third hinge point is located adjacent to the second hinge point. The second rod has a fourth hinge point, a fifth hinge point, and a sixth hinge point. The fourth hinge point and the fifth hinge point are respectively located at both ends of the second rod. The sixth hinge point is located adjacent to the fourth hinge point. The first hinge point is hinged to one end of the second connecting rod. The second hinge point is hinged to the support unit. The third hinge point is hinged to the fourth hinge point. The fifth hinge point is hinged to the support unit. The sixth hinge point is hinged to the end of the pull rod unit away from the second connecting rod. Two first rods are spaced apart on both sides of the first pedal along the travel direction of the mobility scooter. Two second rods are spaced apart on both sides of the second pedal along the travel direction of the mobility scooter. The unfolded state also includes the position where the second hinge point of the first rod is hinged to the support unit and abuts against the side of the second rod away from the ground; the folded state also includes one side of the support unit adjacent to the side of the second rod away from the ground, and the first rod, the second rod, and the pull rod unit are arranged adjacent to each other.

9. A mobility scooter with shock absorption according to claim 8, characterized in that, The support unit includes a first support rod, a second support rod, and a third support rod; the first support rod and the second support rod are arranged intersectingly; one side of the first support rod at its midpoint along its length is hinged to one side of the second support rod at its midpoint along its length; one end of the first support rod is fixedly connected to the rear bracket, and the other end is hinged to the seat unit; the fifth hinge point of the second support rod is hinged to the end of the first support rod near the rear bracket; one end of the second support rod is hinged to one end of the third support rod, and the other end is hinged to the second hinge point of the first support rod; the end of the third support rod away from the second support rod is hinged to the seat unit; the first support rod and the third support rod are spaced apart on the seat unit.

10. A mobility scooter with shock absorption according to claim 4, characterized in that, The shock absorption assembly also includes a second elastic element; one end of the second elastic element is fixedly connected to the first frame unit, and the other end extends toward the front bracket; the axis of the second elastic element coincides with the symmetry center plane of the first frame unit; The mobility scooter also includes a second shock absorption state; the second shock absorption state includes the second elastic element abutting against the front bracket and being compressed by force; the first shock absorption state also includes the second elastic element being spaced apart from the front bracket.

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