Vehicle and method for using same

Abstract

Provided is a vehicle, comprising: a chassis (10), a seat and a support assembly (30). Two ends of the support assembly (30) are respectively rotatably connected to the chassis (10) and the seat, and the support assembly (30) drives the seat to be folded or unfolded; when the seat is unfolded, the seat is spaced apart from the chassis (10); when the seat is folded, the seat is attached to the chassis (10); the chassis (10) comprises a first chassis frame (11) and a second chassis frame (12), and the first chassis frame (11) slides relative to the second chassis frame (12), so that the chassis (10) is folded or unfolded; when the chassis (10) is unfolded, the first chassis frame (11) is adjacent to the second chassis frame (12); when the chassis (10) is folded, the first chassis frame (11) and the second chassis frame (12) partially overlap; the chassis (10) is folded or unfolded while the seat is folded or unfolded; and in the vertical direction, the projection of the support assembly (30) do not overlap the projection of the chassis (10) and the projection of the seat. When the vehicle is completely folded, a seat support (32) is located outside the chassis (10), and does not occupy the space above the chassis (10), which can reduce the thickness of the folded vehicle, thereby reducing the size of the vehicle after folding and facilitating carrying.

Description

Vehicles and how to use them

[0001] This application claims priority to Chinese patent application No. 202311773260.8 filed on December 20, 2023; priority to Chinese patent application No. 202421893826.0 filed on August 6, 2024; and priority to Chinese patent application No. 202422234711.7 filed on September 11, 2024, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure relates to the technical field of vehicles, and in particular to a vehicle and a method for using the same. Background Art

[0003] A mobility scooter is a low-speed electric vehicle that has become a popular mode of transportation in recent years. It is popular with consumers due to its ease of operation and minimal safety risks. Currently, a mobility scooter consists of a chassis, a lifting and folding mechanism, and a seat cushion. The bottom of the lifting and folding mechanism is connected to the chassis, and the top of the lifting and folding mechanism is connected to the seat cushion. Lifting or pressing the seat cushion causes the lifting and folding mechanism to expand or fold.

[0004] However, the thickness of the above-mentioned mobility scooter after folding is relatively large, and the chassis volume is relatively large, resulting in the folded mobility scooter occupying a large space, being inconvenient to carry, affecting the user experience, and being inconvenient to carry.

[0005] Summary of the Invention

[0006] On the one hand, a vehicle is provided, comprising: a chassis, a seat and a support assembly, one end of the support assembly is rotatably connected to the chassis, the other end of the support assembly is rotatably connected to the seat, and the support assembly can drive the seat to be stored or unfolded; when the seat is in the unfolded state, the seat and the chassis are spaced apart in the vertical direction; when the seat is in the stowed state, the seat is attached to the chassis; the chassis comprises a first chassis frame and a second chassis frame, the first chassis frame and the second chassis frame are arranged adjacent to each other in a first horizontal direction, and the first chassis frame can slide relative to the second chassis frame to make the chassis to be stowed or unfolded; when the chassis is in the unfolded state, the first chassis frame slides to the first position, and the first chassis frame and the second chassis frame are adjacent; when the chassis is in the stowed state, the first chassis frame slides to the second position, and the first chassis frame and the second chassis frame at least partially overlap; the chassis is stowed while the seat is stowed, and the chassis is unfolded while the seat is unfolded; wherein, the projection of the support assembly in the vertical direction does not overlap with the projection of the chassis in the vertical direction, and the projection of the support assembly in the vertical direction does not overlap with the projection of the seat in the vertical direction.

[0007] On the other hand, a method for using a vehicle is provided, wherein the vehicle includes a chassis, a support, a seat bracket, a seat support frame, a backrest bracket and a transmission link; the seat bracket includes a seat link, one end of the seat link is rotatably connected to the seat support frame; along a second horizontal direction, the support is arranged on the side of the chassis, the support is rotatably connected to one end of the seat link; and the seat bracket, the seat support frame and the support form a first linkage mechanism; the backrest bracket is rotatably connected to the seat support frame, the transmission link is rotatably connected to the backrest bracket and the seat bracket respectively, and the backrest bracket, the transmission link, the seat bracket and the seat support frame form a second linkage mechanism; the chassis includes a first chassis frame and a second chassis frame; along a first horizontal direction, the first chassis frame is slidably mounted on one side of the second chassis frame, and the two are located in the same plane; and the seat bracket is linked to the first chassis frame;

[0008] The method of use includes:

[0009] When folding, the backrest bracket is rotated clockwise, and the transmission connecting rod and the seat bracket are rotated counterclockwise relative to the seat support frame; the end of the seat bracket away from the seat support frame drives the first chassis frame to move along the first horizontal direction and store the chassis; and / or

[0010] When unfolding, the backrest bracket is rotated counterclockwise, and the transmission connecting rod and the seat bracket are rotated clockwise relative to the backrest bracket and the seat support frame. The end of the seat bracket away from the seat support frame drives the first chassis frame to move along the first horizontal direction and unfold the chassis.

[0011] Compared with related technologies, the vehicle and method of use provided by the embodiments of the present application have the following advantages:

[0012] In the related art mobility scooters, the lifting and folding mechanism is located between the chassis and the seat cushion after folding, resulting in a thick scooter when folded, making it difficult to carry. However, the vehicle provided in the embodiments of the present application has a support rotatably connected to the seat frame disposed to the side of the chassis. In other words, the support is disposed on one side of the chassis. When the vehicle is fully folded, the seat frame is located outside the chassis. In other words, when the mobility scooter in the embodiments of the present application is fully folded, the seat frame, support, etc. of the support assembly used to achieve folding are all located outside the chassis, which does not occupy the space above the chassis, thereby reducing the folded thickness of the mobility scooter.

[0013] Moreover, when the mobility scooter is fully folded, the backrest cushion and the seat cushion are respectively laid flat and attached to the upper surface of the chassis, which can further reduce the thickness of the folded mobility scooter, making the folded mobility scooter small and thin, thereby further reducing the folded size of the mobility scooter and making it easier to carry.

[0014] At the same time, in the embodiment of the present application, the support assembly for achieving folding is also linked with the chassis. When the support assembly achieves the folding of the backrest cushion and the seat cushion, it can also drive the chassis to be stored, further reducing the volume of the folded vehicle; and when the support assembly achieves the unfolding of the backrest cushion and the seat cushion, it can also drive the chassis to unfold, so that the entire vehicle can be folded or unfolded, making the folding and unfolding of the vehicle more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG1 is a schematic structural diagram of a mobility scooter provided in an embodiment of the present application in an unfolded state;

[0016] FIG2 is a schematic diagram showing the arrangement of the first rotation point, the second rotation point, and the third rotation point in the second linkage mechanism in an embodiment of the present application;

[0017] FIG3 is a schematic structural diagram of the mobility scooter provided in an embodiment of the present application in a folded state;

[0018] FIG4 is a schematic diagram of a seat support frame provided in an embodiment of the present application when it is fully deployed;

[0019] FIG5 is a schematic diagram of the position of the seat support frame provided in an embodiment of the present application when it is fully folded;

[0020] FIG6 is a schematic diagram of the position and structure of a first locking assembly provided in an embodiment of the present application;

[0021] FIG7 is a first schematic diagram of the mechanical linkage between the chassis and the second link mechanism provided in an embodiment of the present application;

[0022] FIG8 is a second schematic diagram of the mechanical linkage between the chassis and the second link mechanism provided in an embodiment of the present application;

[0023] FIG9 is a schematic diagram of the arrangement of the first actuator on the chassis provided in an embodiment of the present application;

[0024] FIG10 is a first schematic diagram of the linkage between the first actuator, the second linkage mechanism, and the first chassis frame according to an embodiment of the present application;

[0025] FIG11 is a second schematic diagram of the linkage between the first actuator, the second connecting rod mechanism, and the first chassis frame according to an embodiment of the present application;

[0026] FIG12 is a schematic diagram of the arrangement of the locking mechanism relative to the chassis provided in an embodiment of the present application;

[0027] FIG13 is an exploded schematic diagram of a locking mechanism provided in an embodiment of the present application;

[0028] FIG14 is a first schematic diagram of the assembly of the first chassis frame and the second chassis frame provided in an embodiment of the present application;

[0029] FIG15 is a second schematic diagram of the assembly of the first chassis frame and the second chassis frame provided in an embodiment of the present application;

[0030] FIG16 is a schematic diagram of a chassis in a locked state provided by an embodiment of the present application;

[0031] FIG17 is an enlarged schematic diagram of point A in FIG16;

[0032] FIG18 is a schematic structural diagram of a locking hook provided in an embodiment of the present application;

[0033] FIG19 is a schematic structural diagram of a force application arm provided in an embodiment of the present application;

[0034] Figures 20 to 22 are schematic diagrams of the chassis deployment process according to an embodiment of the present application;

[0035] Figures 23 to 25 are schematic diagrams of the chassis folding process provided in an embodiment of the present application;

[0036] FIG26 is a first schematic diagram of the arrangement of the wiring harness storage mechanism on the chassis according to an embodiment of the present application;

[0037] FIG27 is a second schematic diagram of the arrangement of the wire harness storage mechanism on the chassis provided in an embodiment of the present application;

[0038] FIG28 is a schematic structural diagram of the wire harness storage mechanism in FIG26;

[0039] FIG29 is a schematic structural diagram of the wire harness storage mechanism in FIG27;

[0040] Figure 30 is a schematic structural diagram of the storage box provided in an embodiment of the present application.

[0041] Reference numerals: 10 - chassis; 11 - first chassis frame; 12 - second chassis frame; 14 - second locking assembly; 111 - angle limiting portion; 20 - locking mechanism; 21 - locking pin; 22 - locking hook; 23 - force-applying arm; 24 - guide pin; 25 - elastic member; 221 - hook body; 222 - clamping block; 223 - unlocking lever; 231 - abutting portion; 232 - guide groove; 2211 - hinge hole; 2221 - limiting groove; 2222 - guide portion; 2231 - unlocking portion; 30 - support assembly; 31 - seat support frame; 32 - seat support; 33 - backrest support; 34 - transmission connecting rod; 35 - first rod; 36 - support; 321 - first seat connecting rod; 322 - second seat connecting rod; 40-wiring harness storage mechanism; 41-wiring harness box; 43-storage box; 44-first connecting member; 45-second connecting member; 411-first end portion; 412-second end portion; 413-bending section; 431-fixing position; 432-first fixing hole; 433-avoidance groove; 434-third fixing hole; 435-first opening; 436-second opening; 437-wiring groove; 51-backrest cushion; 52-first limit block; 53-bending portion; 54-support arm; 61-seat cushion; 62-first limit surface; 63-second limit surface; 65-first actuator; 66-first locking assembly; 80-traveling mechanism; 90-steering mechanism; 100-mobility vehicle; 101-first rotation point; 102-second rotation point; 103-third rotation point. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings to clearly and completely describe some embodiments of the present disclosure. Obviously, the embodiments described are only some embodiments of the present disclosure, rather than all embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present disclosure.

[0043] To facilitate the description of the embodiments of the present application, the coordinate system in the accompanying drawings is explained, wherein the X-axis direction represents the first horizontal direction, which can be the front and rear directions of the vehicle, and this direction is consistent with the forward and backward directions of the vehicle; the Y-axis direction represents the second horizontal direction, which can be the width direction of the vehicle; the Z-axis direction represents the vertical direction, which represents the height direction of the vehicle.

[0044] As shown in Figure 1, the vehicle provided in the embodiment of the present application can be a mobility scooter or a wheelchair. For example, the mobility scooter can be a mobility scooter for the elderly, and the wheelchair can be a manual folding wheelchair or an electric folding wheelchair. The embodiment of the present application is not limited to this. The embodiment of the present application is described using the vehicle configuration of a mobility scooter for the elderly as an example.

[0045] The mobility scooter 100 provided in an embodiment of the present application includes a chassis 10, a running mechanism 80, and a steering mechanism 90. The chassis 10 is configured as the load-bearing unit for the entire mobility scooter 100. The running mechanism 80 is disposed on the chassis 10. The running mechanism 80 includes running wheels and a drive assembly connected to the running wheels. The drive assembly includes, but is not limited to, a drive motor, which is used to provide power to the running wheels to move the mobility scooter 100 forward, backward, etc. The steering mechanism 90 includes a steering gear and a steering rod. The steering gear is disposed at the front end of the chassis 10 and can drive the running wheels to steer. The steering rod is disposed at the front end of the chassis 10 and extends in a vertical direction. The bottom end of the steering rod is connected to the steering gear. The steering rod can control the movement of the steering gear to steer the running wheels.

[0046] The mobility scooter 100 provided in the embodiment of the present application further includes a support assembly 30, which is used to support a backrest cushion 51 or a seat cushion 61, etc., and when the support assembly 30 is in motion, the backrest cushion 51 or the seat cushion 61 can be folded or unfolded; at the same time, the support assembly 30 in the embodiment of the present application is also linked with the chassis 10, when the support assembly 30 is folded, the support assembly 30 can drive the chassis 10 to be stored, and when the support assembly 30 is unfolded, the support assembly 30 can drive the chassis 10 to be unfolded, so that the entire mobility scooter 100 can be folded or unfolded.

[0047] The support assembly 30 includes at least one first linkage mechanism. The first linkage mechanism is disposed on one side of the chassis 10 along the second horizontal direction and is rotatably connected relative to the chassis 10. The rotation plane of the first linkage mechanism lies within a first plane, which is the plane along which the first horizontal and vertical directions lie. The first plane is located outside the chassis 10 along the second horizontal direction.

[0048] Specifically, the first linkage mechanism includes a seat bracket 32, a seat support frame 31 and a support 36; wherein the seat bracket 32 ​​is used to install the seat cushion 61. When the mobility scooter 100 is in the unfolded state (when the mobility scooter 100 is in use), the seat bracket 32 ​​is located at the rear end of the chassis 10 along the first horizontal direction, and the seat bracket 32 ​​is located above the chassis 10 along the vertical direction. A certain space is maintained between the seat bracket 32 ​​and the chassis 10 along the vertical direction, and the seat bracket 32 ​​maintains a certain distance from the steering rod along the first horizontal direction to facilitate the user to sit and operate the steering rod.

[0049] The seat bracket 32 ​​is disposed between the chassis 10 and the seat support frame 31. The seat bracket 32 ​​includes a first seat link 321 and a second seat link 322. The first seat link 321 and the second seat link 322 are spaced apart along a first horizontal direction. The first ends of the first seat link 321 and the second seat link 322 are respectively rotatably connected to the seat support frame 31 and are connected to different positions on the seat support frame 31.

[0050] Along the second horizontal direction, the support 36 is disposed on one side of the chassis 10, that is, the support 36 can be disposed outside the chassis 10. The second ends of the first seat link 321 and the second seat link 322 are rotatably connected to the support 36 and are connected to different positions on the support 36. Thus, the first seat link 321, the second seat link 322, the support 36, and the seat support frame 31 form the aforementioned first linkage mechanism, which is foldable and deployable. Furthermore, when the first linkage mechanism is fully folded, the seat frame 32 is located to the side of the chassis 10 along the second horizontal direction.

[0051] In the prior art, when a mobility scooter is folded, its lifting and folding mechanism is located between the chassis and the seat cushion, resulting in a relatively large thickness of the folded mobility scooter, making it difficult to carry. However, when the mobility scooter 100 in the embodiment of the present application is fully folded, the seat bracket 32 ​​is located on one side of the chassis 10 along the second horizontal direction. In other words, the vertical projection of the support assembly 30 does not overlap with the vertical projection of the chassis 10, and the vertical projection of the support assembly 30 does not overlap with the vertical projection of the seat. Therefore, the support assembly 30 does not occupy the space above the chassis 10, which can reduce the thickness of the folded mobility scooter 100, thereby reducing the folded size of the mobility scooter 100 and making it easier to carry.

[0052] The vertical projection of the support assembly 30 refers to the projection of the support assembly 30 onto a reference plane with the vertical axis as the projection line. The vertical projection of the seat refers to the projection of the seat onto a reference plane with the vertical axis as the projection line. The vertical projection of the chassis 10 refers to the projection of the chassis 10 onto a reference plane with the vertical axis as the projection line. On this reference plane, the projection of the seat overlaps with the projection of the chassis 10, indicating that the seat is located above the chassis 10. However, the projections of the support assembly 30 and the chassis 10 do not overlap, and the projections of the support assembly 30 and the seat do not overlap, indicating that the support assembly 30 is located to the side of the chassis 10 and the seat.

[0053] On the basis of the above embodiment, the embodiment of the present application further adjusts the length and hinge position of each "link" of the first link mechanism so that when the first link mechanism is fully folded, the end of the seat bracket 32 ​​away from the support 36 is tilted downward along the first horizontal direction and is located below the chassis 10.

[0054] For example, when the mobility scooter 100 is fully folded, the seat frame 32 tilts downward along a first horizontal direction, and vertically, the end of the seat frame 32 distal from the support 36 is positioned below the chassis 10. This arrangement creates a "negative angle" between the folded seat frame and the chassis. This "negative angle" refers to the angle between the folded seat frame's extension direction and the first horizontal direction. This arrangement ensures that the seat support frame 31 maintains minimal contact with the upper surface of the chassis 10, or with minimal clearance, thereby reducing the thickness of the folded mobility scooter 100.

[0055] The mobility scooter 100 provided in the embodiment of the present application further includes a backrest bracket 33 and a transmission link 34, wherein the backrest bracket 33 is used to install a backrest cushion 51 and is arranged on the rear side of the seat support frame 31 along the first horizontal direction. The backrest bracket 33 is rotatably connected to the seat support frame 31 and forms a first rotation point 101.

[0056] The transmission link 34 is used to connect the seat frame 32 and the backrest frame 33. For example, the transmission link 34 is arranged between the seat frame 32 and the backrest frame 33, and the two ends of the transmission link 34 are respectively rotatably connected to the backrest frame 33 and the seat frame 32, forming a second rotation point 102 and a third rotation point 103 respectively.

[0057] Illustratively, the seat bracket 32 ​​includes a first seat link 321 and a second seat link 322. One end of the transmission link 34 is rotatably connected to the backrest bracket 33, forming the second pivot point 102. The other end of the transmission link 34 is selectively rotatably connected to the first seat link 321 or the second seat link 322, forming the third pivot point 103. Thus, the backrest bracket 33, the transmission link 34, the seat bracket 32, and the seat support frame 31 form a second linkage mechanism.

[0058] As shown in Figure 2, further, in the embodiment of the present application, the line between the first rotation point 101 and the second rotation point 102 is defined as the first line, and the line between the second rotation point 102 and the third rotation point 103 is defined as the second line, and when the scooter 100 is fully unfolded, the angle formed between the first line and the second line is in the range of 0° to 10°.

[0059] In one possible implementation, the angle formed between the first connecting line and the second connecting line in the embodiment of the present application is configured to be 0°; that is, when the second linkage mechanism is fully extended, the first rotating point 101, the second rotating point 102 and the third rotating point 103 are collinear. In other words, the first rotating point 101, the second rotating point 102 and the third rotating point 103 are on the same straight line.

[0060] With this arrangement, when the mobility scooter is in the unfolded state and further locked by the locking assembly, the second link mechanism is in a self-locking state, and the transmission link 34 not only has a transmission connection function, but also serves as a load-bearing rod to support the seat support frame 31. When the driver is driving the mobility scooter, the transmission link 34 can share part of the gravity, that is, part of the gravity acts on the locking pin of the locking assembly, and part of the gravity acts on the transmission link 34, thereby reducing the load-bearing strength of the locking pin.

[0061] In one embodiment, when the second link mechanism is fully unfolded, the first rotation point is located above the seat cushion 61 in the vertical direction, and when the second link mechanism or the first link mechanism is fully folded, the seat cushion 61 is located above the chassis 10 and close to the upper surface of the chassis 10; or the seat cushion 61 can be in contact with the upper surface of the chassis 10, which is not limited in this embodiment of the present application.

[0062] Furthermore, the first rotation point is arranged above the seat cushion 61, which not only ensures that the back cushion 51 can be laid flat on the upper surface of the chassis when the back cushion 51 is fully folded backward along the first horizontal direction; it also enables the first rotation point and the seat cushion 61 to be avoided, so as to facilitate the installation of the seat cushion 61 and the installation of the hinge between the backrest bracket 33 and the seat support frame 31.

[0063] As shown in Figures 1 and 3, in this embodiment of the present application, the backrest bracket 33 rotates clockwise relative to the seat support frame 31 to fold the second linkage mechanism. Specifically, the backrest bracket 33 rotates rearward along a first horizontal direction, thereby folding the second linkage mechanism. When the second linkage mechanism is fully folded, the backrest cushion 51 is positioned above the chassis 10, with the back side of the backrest cushion 51 adjacent to or in contact with the upper surface of the chassis 10.

[0064] Along the first horizontal direction, the backrest cushion 51 and the seat cushion 61 are arranged opposite each other and lie in the same plane. "Likely referring to the upper surface of the backrest cushion 51 and the upper surface of the seat cushion 61 being in the same horizontal plane, or approximately in the same plane, with a small height difference between the two. This arrangement allows the backrest cushion 51 and the seat cushion 61 to lie flat on the chassis 10, rather than being stacked vertically, further reducing the thickness of the folded mobility scooter 100.

[0065] As shown in Figure 4, in this embodiment of the present application, a first limiting surface 62 is provided on the side of the seat support frame 31 facing the backrest frame 33. The first limiting surface 62 is located along the rotation path of the backrest frame 33. For example, in a clockwise direction, the first limiting surface 62 is provided at the edge of the seat support frame 31. The first limiting surface 62 is located on the side of the seat support frame 31 facing the backrest frame 33 and is located along the rotation path of the backrest frame 33.

[0066] Correspondingly, a first stopper 52 is provided on the side of the backrest bracket 33 facing the seat support frame 31, and the first stopper 52 is provided in cooperation with the first stopper surface 62. For example, the first stopper 52 can be a protrusion protruding from the backrest bracket 33 along the second horizontal direction.

[0067] The first limit block 52 is configured so that when the second link mechanism is unfolded, the first limit block 52 abuts against the first limit surface 62. When the second link mechanism is unfolded into place, that is, when the first limit block 52 abuts against the first limit surface 62, the backrest bracket 33 is in the first extreme position, so that the backrest bracket 33 can be locked subsequently using the second locking assembly 14.

[0068] As shown in Figure 5, further, a second limiting surface 63 is provided on the side of the seat support frame 31 close to the seat bracket 32. The second limiting surface 63 is cooperated with the first seat link 321 or the second seat link 322. When the second link mechanism is fully folded, the second limiting surface 63 abuts against the first seat link 321 or the second seat link 322.

[0069] For example, along the first horizontal direction, the first seat link 321 is disposed in front of the second seat link 322, and the first seat link 321 and the second seat link 322 can be disposed in parallel. A second limiting surface 63 is provided on the seat support frame 31 near the second seat link 322. The second limiting surface 63 is located on the side of the seat support frame 31 near the second seat link 322 along the second horizontal direction.

[0070] The second limiting surface 63 is configured to cooperate with the second seat link 322. When the second linkage mechanism is folded, the second limiting surface 63 abuts the second seat link 322, i.e., the seat support frame 31 presses against the second seat link 322. The second linkage mechanism is then fully folded, and the backrest bracket 33 is in the second limit position. It should be understood that the second limiting surface 63 can optionally cooperate with the first seat link 321, as desired, and this embodiment of the present application is not limited thereto.

[0071] As shown in Figure 6, when the second linkage is fully deployed, the deployed state of the mobility scooter is locked, preventing the first or second linkage from operating, allowing the user to board the mobility scooter. In this embodiment of the present application, a second locking assembly 14 is disposed between the backrest bracket 33 and the seat bracket 32. The second locking assembly 14 includes a second locking pin and a second elastic member. The second elastic member can be a second spring, and the second elastic member is configured to provide a locking force to the second locking pin.

[0072] For example, a second locking pin and a second spring are provided on the seat support frame 31, and a locking slot is provided on the backrest frame 33. After the second linkage mechanism is fully deployed, the second locking pin can be inserted into the locking slot, thereby locking the seat support frame 31 and the backrest frame 33. Furthermore, when the mobility scooter needs to be folded, the elastic force of the second spring is overcome to disengage the second locking pin from the locking slot, thereby releasing the lock between the backrest frame 33 and the seat support frame 32.

[0073] As shown in Figures 7 to 11, the chassis 10 provided in the embodiment of the present application includes a first chassis frame 11 and a second chassis frame 12. Along the first horizontal direction, the first chassis frame 11 is arranged on the front side of the second chassis frame 12 and slides along the second chassis frame 12.

[0074] Specifically, the first chassis frame 11 and the second chassis frame 12 are arranged relative to each other along a first horizontal direction. The first chassis frame 11 is slidably mounted on the second chassis frame 12, and the two are located in the same plane. For example, the first chassis frame 11 is sleeved on the second chassis frame 12, wherein the steering rod and steering gear are arranged on the first chassis frame 11, and the support 36 is arranged on the outside of the second chassis frame 12.

[0075] With this arrangement, when the mobility scooter 100 is folded, the first chassis frame 11 slides toward one side of the second chassis frame 12, so that the first chassis frame 11 can be stored, so that the entire folded mobility scooter 100 is smaller in size and easier to carry.

[0076] As shown in Figure 9, the electric storage mode includes a controller and a first actuator 65. The first actuator 65 is connected to the controller by signal. The controller can be linked to a push button switch. Pressing the switch button controls the first actuator 65 to operate. The first actuator 65 can be one or a combination of an actuator cylinder, a pneumatic spring, or a push rod motor. The first actuator 65 is disposed between the first chassis frame 11 and the second chassis frame 12. The displacement direction of the first actuator 65 is consistent with the first horizontal direction. When the first actuator 65 is activated, it can cause the first chassis frame 11 to slide relative to the second chassis frame 12 along the first horizontal direction.

[0077] In other embodiments, the linkage stowage mode of the chassis 10 can be understood as the chassis 10 being stowable or unfolded when the first linkage and / or the second linkage are folded or unfolded. This linkage stowage mode includes a first linkage mode: mechanical linkage between the first or second linkage and the chassis, i.e., the first or second linkage drives the first chassis frame to slide relative to the second chassis frame, as shown in Figures 7 and 8.

[0078] And, the second linkage mode: when the first link mechanism or the second link mechanism is folded or unfolded, the controller responds and controls the first actuator 65 to operate, as shown in Figures 9 to 11. The embodiment of the present application is not limited to this, and each of them is described in detail below.

[0079] In one embodiment, the first linkage mechanism or the second linkage mechanism and the chassis 10 adopt the first linkage method mentioned above: referring to Figures 7 and 8, the first chassis frame 11 is mechanically linked with the first linkage mechanism or the second linkage mechanism. When the first linkage mechanism or the second linkage mechanism is actuated, the first chassis frame 11 slides relative to the second chassis frame 12 along the first horizontal direction.

[0080] It can be understood that the first and second link mechanisms are mechanically linked to the first chassis frame 11 , and are actually linked to the first chassis frame through the seat bracket. That is, when the first and second link mechanisms are actuated, the seat bracket is driven to rotate to change the state of the first chassis frame 11 .

[0081] For example, when the first link mechanism is folded, it can drive the first chassis frame 11 to move along the first horizontal direction toward the second chassis frame 12, so that the entire chassis 10 is stored. When the first link mechanism is unfolded, it can drive the first chassis frame 11 to move along the first horizontal direction away from the second chassis frame 12, so that the entire chassis 10 is unfolded.

[0082] Specifically, the mobility scooter 100 provided in this embodiment of the present application further includes a first link 35, a first end of which is connected to the first chassis frame 11, and a second end of which is connected to the first seat link 321 or the second seat link 322. It should be noted that if the chassis 10 is linked to the first linkage mechanism, the second end of the first link 35 is linked to the first seat link 321. If the chassis 10 is linked to the second linkage mechanism, the second end of the first link 35 is linked to the second seat link 322. The second seat link 322 is disposed behind the first seat link 321 along a first horizontal direction, and the other end of the second seat link 322 is rotationally connected to the transmission link 34.

[0083] The following embodiments of the present application illustrate the linkage between the chassis 10 and the second linkage mechanism. The second seat link 322 has a bent portion 53 at one end away from the seat support frame 31. The bent portion 53 is disposed behind the support 36 along the first horizontal direction and pivotally connects to the first link 35 by bypassing the support 36.

[0084] The second seat link 322 includes a first end and a second end, wherein the first end of the second seat link 322 is rotatably connected to the seat support frame 31 , and a portion of the second seat link 322 close to the first end is rotatably connected to the transmission link 34 .

[0085] For example, a support arm 54 is provided at a portion of the second seat link 322 close to the first end, and the support arm 54 extends toward the transmission link 34. One end of the transmission link 34 is rotatably connected to the backrest bracket 33 to form a second rotation point, and the other end of the transmission link 34 is connected to the support arm 54 to form a third rotation point.

[0086] The second end of the second seat link 322 is usually rotatably connected to the support 36. In order to link the above-mentioned first chassis frame 11 with the second linkage mechanism, the second end of the second seat link 322 has an extension section, which is an integral part of the second seat link 322 and is configured as a bent portion 53. The bent portion 53 is arranged on the rear side of the support 36.

[0087] The bent portion 53 bypasses the support 36 and is rotatably connected to the first rod 35. This configuration not only forms a clearance space between the bent portion 53 and the chassis 10, but also effectively increases the swing range of the first rod 35, thereby increasing the sliding displacement of the first chassis frame 11 along the first horizontal direction.

[0088] When the second linkage mechanism is folded or unfolded, it automatically unlocks the first chassis frame 11 and the second chassis frame 12. The first locking pin is inserted along the second horizontal direction between the first rod, the first chassis frame, and the second chassis frame. The first rod 35 is located outside the first chassis frame 11. The first chassis frame 11 is sleeved on the second chassis frame 12 and moves relative to the second chassis frame 12 along the first horizontal direction.

[0089] The first rod is provided with an adjustment hole that cooperates with the first locking pin. The adjustment hole is a waist-shaped hole, and the length direction of the adjustment hole is consistent with the first horizontal direction, that is, the length direction of the adjustment hole extends along the first horizontal direction. The second chassis frame is provided with a limiting hole that cooperates with the first locking pin. The rod body of the first locking pin is inserted into the adjustment hole, and the end of the rod body is inserted into the limiting hole.

[0090] The first locking pin is located at the end portion of the outer side of the chassis 10 and is provided with a first inclined surface, and the first rod 35 is provided with a second inclined surface that cooperates with the first inclined surface. When the first rod moves along the first horizontal direction, the first inclined surface and the second inclined surface abut and form a wedge-shaped structure, so that the pulling force of the first rod along the first horizontal direction is converted into a pulling force along the first horizontal direction through the wedge-shaped structure. The pulling force acts on the first locking pin, so that the first locking pin can overcome the elastic force of the first elastic member and move along the second horizontal direction, that is, the first locking pin is pulled out of the limiting hole, so that the first chassis frame and the second chassis frame can be unlocked. Further, under the pulling force of the first rod 35, the first chassis frame 11 can be moved relative to the second chassis frame 12 along the first horizontal direction.

[0091] In this embodiment, the second linkage mode between the chassis and the linkage mechanism is as shown in Figure 9 . When the first or second linkage mechanism folds or unfolds, the controller responds and controls the first actuator 65 to operate. Specifically, in one embodiment, the mobility scooter further includes a position sensor, which is signal-connected to the controller. The position sensor is disposed on the seat support frame or bracket to detect the operation of the first or second linkage mechanism.

[0092] For example, the position sensor provided in the embodiments of the present application can be installed on a seat support frame. The position sensor can detect changes in the position of a certain point on the backrest frame or the seat frame, and based on this change, determine whether the first or second linkage mechanism is in a folded or unfolded state. The controller then synchronizes this information with the controller, which controls the operation of the first actuator 65 based on the state of the linkage mechanism. It should be noted that the above-mentioned position sensor includes an unrestricted angle sensor, etc.

[0093] Furthermore, in another embodiment, the mobility scooter further includes a second actuator connected to the controller signal, the second actuator acts on the first link mechanism or the second link mechanism to fold or unfold the mobility scooter; when the second actuator is actuated, the controller controls the first actuator 65 to actuate.

[0094] For example, a second actuator is positioned between the chassis and the seat frame. This second actuator can drive the seat frame to rotate relative to the backrest frame, allowing the mobility scooter to fold or unfold. When the second actuator actuates (raises or lowers), this information is synchronized to the controller, which uses this information to determine the state of the linkage and further control the second actuator's actuation. It will be appreciated that both the first actuator 65 and the second actuator are signal-connected to the controller, and when either actuator actuates, the other actuator can also actuate, allowing the mobility scooter to quickly fold or unfold.

[0095] Based on the above embodiment, the chassis can be retracted and deployed under the action of the first actuator 65. At the same time, the mechanical linkage between the first or second linkage and the chassis also acts on the first chassis frame, which is not limited in this embodiment of the present application. In this arrangement, the first actuator 65 can provide a folding force, making the folding and deployment process more labor-saving, thereby achieving rapid folding or deployment of the mobility scooter.

[0096] Furthermore, the mobility scooter 100 includes a rear axle motor for driving the rear wheels. The rear axle motor is disposed on the second chassis frame 12 along a first horizontal direction, near the support 36. The rear axle motor can be disposed within the clearance formed by the bent portion 53 and the chassis 10. Specifically, the second linkage mechanism is separated from the rear axle motor by the bent portion 53, thereby preventing interference with the second linkage mechanism.

[0097] To ensure that the backrest cushion 51 remains as horizontal as possible with the chassis 10 after the second linkage mechanism is fully folded, a clearance groove is provided on the back side of the backrest cushion 51 to engage with the rear axle motor. This arrangement allows a portion of the rear axle motor to be located within the clearance groove when the scooter 100 is fully folded, lowering the height of the backrest cushion 51 and, consequently, reducing the thickness of the entire scooter 100 after folding.

[0098] It should be noted that the mobility scooter 100 in this embodiment includes two first linkage mechanisms, one disposed on either side of the chassis along the second horizontal direction. Accordingly, a support 36 is disposed on either side of the chassis 10 along the second horizontal direction, and two rotating links are disposed on either side of the backrest bracket 33. Each transmission link 34 is connected to a corresponding seat bracket 32. Consequently, the mobility scooter 100 includes two second linkage mechanisms, one disposed on either side of the chassis 10 along the second horizontal direction.

[0099] Building on the above embodiment, the mobility scooter 100 includes two first levers 35, disposed along the second horizontal direction on either side of the chassis 10. One end of each first lever 35 is connected to the first chassis frame 11, and the other end is connected to the second linkage. This arrangement improves the reliability of the folding or unfolding of the mobility scooter 100 and its structural strength, thereby enhancing driving safety.

[0100] Continuing to refer to FIG1 and FIG2, there is a vehicle provided by an embodiment of the present application, and a method of using the vehicle is described:

[0101] When folding the mobility scooter, the backrest bracket is rotated clockwise, that is, when folding the unfolded mobility scooter, the top of the backrest bracket or the backrest cushion is pressed toward the rear side to rotate the backrest bracket clockwise around the first rotation point relative to the seat support frame.

[0102] In this state, the transmission link and the seat bracket both rotate counterclockwise relative to the seat support frame. For example, the transmission link rotates forward about the third rotation point to cause the seat bracket to swing forward. That is, the seat bracket rotates counterclockwise about the support, which in turn causes the end of the seat bracket connected to the first chassis frame to swing backward. This exerts a pulling force on the first rod 35, causing the end of the seat bracket away from the seat support frame to move the first chassis frame in the first horizontal direction, thereby stowing the chassis.

[0103] When the mobility scooter is unfolded, the backrest bracket rotates counterclockwise, causing the transmission link and seat bracket to rotate clockwise relative to the seat support frame. The end of the seat bracket, away from the seat support frame, swings forward, driving the first chassis frame to move in a first horizontal direction and unfold the chassis. This process is the opposite of the folding process of the mobility scooter and will not be further described here.

[0104] The mobility scooter provided in the embodiment of the present application can simultaneously drive the chassis to be folded when the connecting rod mechanism is folded and stored, thereby simplifying the storage and unfolding process of the entire mobility scooter and improving the folding and storage efficiency of the entire mobility scooter.

[0105] The locking mechanism 20 provided in the embodiment of the present application is arranged between the first chassis frame 11 and the second chassis frame 12. The locking mechanism 20 is configured to lock the first chassis frame 11 and the second chassis frame 12 when the chassis is fully unfolded; and when the chassis 10 needs to be stored, the locking mechanism 20 unlocks the locked state of the first chassis frame 11 and the second chassis frame 12, thereby improving the operating reliability and stability of the mobility scooter 100.

[0106] As shown in Figures 12 and 13, the locking mechanism 20 provided in the embodiment of the present application includes a locking pin 21 and a locking hook 22 cooperating with the locking pin 21, wherein the locking pin 21 is arranged on the second chassis frame 12, and the locking pin 21 is configured to be receivable in the gap between the first chassis frame 11 and the second chassis frame 12.

[0107] For example, the first chassis frame 11 and the second chassis frame 12 are both square steel, the end of the second chassis frame 12 is inserted into the first chassis frame 11, the locking pin 21 is inserted into the end of the second chassis frame 12 and fixed, and the end of the locking pin 21 is exposed to the outside of the second chassis frame 12, and the exposed part is engaged with the locking hook 22, and the exposed part can be located in the gap between the first chassis frame 11 and the second chassis frame 12, so that the locking pin 21 can be received in the gap between the first chassis frame 11 and the second chassis frame 12, avoiding interference between the first chassis frame 11 and the second chassis frame 12, so as to ensure that the first chassis frame 11 moves relative to the second chassis frame 12.

[0108] Furthermore, the locking hook 22 is rotatably connected to the end of the first chassis frame 11, and the locking hook 22 is arranged close to the locking pin 21 so that when the first chassis frame 11 and the second chassis frame 12 are fully unfolded, the locking hook 22 is engaged with the locking pin 21; and when the first chassis frame 11 and the second chassis frame 12 need to be unlocked, the locking hook 22 and the locking pin 21 are released from the engaged state.

[0109] As shown in Figure 18, the locking hook 22 includes a limiting slot 2221, a guide portion 2222, and an unlocking portion 2231. The limiting slot 2221 and the guide portion 2222 are spaced apart along the first horizontal direction, and the guide portion 2222 is located in front of the limiting slot 2221 along the first horizontal direction. The limiting slot 2221 and the guide portion 2222 are respectively arranged opposite to the locking pin 21. That is, the locking pin 21 is located in the movement path of the first chassis frame 11 and is respectively opposite to the limiting slot 2221 and the guide portion 2222.

[0110] As shown in Figures 19 to 22, during the deployment of the chassis 10, the first chassis frame 11 moves relative to the second chassis frame 12 in a first horizontal direction toward the front of the mobility scooter 100. During the movement of the first chassis frame 11, the guide portion 2222 contacts the locking pin 21 before the limiting groove 2221. The abutment force generated by the abutment of the guide portion 2222 and the locking pin 21 causes the locking hook 22 to rotate relative to the first chassis frame 11, so that the limiting groove 2221 is aligned with the locking pin 21.

[0111] It should be noted that when the first chassis frame 11 is moved into position, the limit slot 2221 is opposite to the locking pin 21, and the locking hook 22 can be further locked into the limit slot 2221 to achieve locking of the first chassis frame 11 and the second chassis frame 12, that is, the limit slot 2221 is configured so that when the chassis 10 is fully unfolded, the locking pin 21 is snapped into the limit slot 2221.

[0112] As shown in Figures 23 to 25, in the embodiment of the present application, the unlocking portion 2231 is configured such that, when the chassis 10 is stowed, the unlocking portion 2231 receives the unlocking force and drives the lock hook 22 to rotate, causing the locking pin 21 to disengage from the limiting groove 2221. Exemplarily, the unlocking portion 2231 and the guide portion 2222 are respectively located at opposite ends of the lock hook 22, with the unlocking portion 2231 positioned near the rotation center relative to the guide portion 2222. The unlocking portion 2231 is used to release the engagement between the locking pin 21 and the limiting groove 2221. In the embodiment of the present application, the unlocking portion 2231 is used to receive the unlocking force and cause the lock hook 22 to rotate, thereby disengaging the locking pin 21 from the limiting groove 2221, allowing the first chassis frame 11 to move relative to the second chassis frame 12 to achieve stowage of the chassis 10.

[0113] To facilitate unlocking and locking the chassis 10, the locking mechanism 20 provided in the embodiment of the present application further includes a force-applying arm 23, wherein the force-applying arm 23 includes a first end and a second end disposed opposite each other. The first end of the force-applying arm 23 is slidably connected to the first chassis frame 11 and can drive the first chassis frame 11 to move. The second end of the force-applying arm 23 is configured as a force-applying portion, which can apply a force to the force-applying arm 23.

[0114] Furthermore, a first end of the force arm 23 is provided with an abutment portion 231, which is arranged opposite to the unlocking portion 2231 along the first horizontal direction, and the abutment portion 231 is arranged in front of the unlocking portion 2231 along the first horizontal direction, and the unlocking portion 2231 is located on the moving path of the abutment portion 231.

[0115] When the chassis 10 needs to be stored, an external force is applied to the force-applying portion and the force-applying arm 23 is moved. The force-applying arm 23 slides relative to the lock hook 22, and the abutting portion 231 moves backward following the force-applying arm 23. When the abutting portion 231 abuts the unlocking portion 2231, the abutting force generated therebetween serves as an unlocking force, causing the lock hook 22 to rotate relative to the first chassis frame 11 and causing the locking pin 21 to disengage from the limiting slot 2221.

[0116] In one embodiment, a guide pin 24 is provided between the first chassis frame 11 and the locking hook 22. The guide pin 24 is mounted perpendicularly to the side of the first chassis frame 11 along the second horizontal direction. The second end of the guide pin 24 passes through the locking hook 22 and is slidably mounted on the force application arm 23. The first end of the force application arm 23 is provided with a guide slot 232 extending along the first horizontal direction. The second end of the guide pin 24 is inserted into the guide slot 232 and can slide along the guide slot 232.

[0117] Furthermore, a limiting cap is provided at the second end of the guide pin 24, and the guide groove 232 is configured as a recessed groove provided on the force arm 23. When the guide pin 24 is mounted on the first chassis frame 11, the limiting cap abuts against the side of the recessed groove to prevent the guide pin 24 from being separated from the force arm 23.

[0118] In some embodiments, the locking hook 22 provided in the embodiments of the present application includes a hook body 221, which is arranged between the first chassis frame 11 and the force application arm 23. Along the first horizontal direction, one end of the hook body 221 is provided with a hinge hole 2211. The first chassis frame 11 is provided with a hinge shaft. The hook body 221 is mounted on the hinge shaft through the hinge hole 2211. The hook body 221 can rotate relative to the first chassis frame 11, thereby forming the rotation center of the locking hook 22.

[0119] To facilitate locking the lock hook 22 and the locking pin 21, the embodiment of the present application has the hook body 221 protruding toward the second chassis frame 12, and a limiting groove 2221 is provided in the protruding portion to facilitate the locking pin 21 to engage with the limiting groove 2221. This arrangement not only ensures that the end of the locking pin 21 protrudes from the second chassis frame 12 and is located within the gap between the first chassis frame 11 and the second chassis frame 12, but also enables the locking pin 21 to engage with the limiting groove 2221.

[0120] Illustratively, the locking hook 22 further includes a latch 222, which is disposed on the surface of the hook body 221 facing the second chassis frame 12. The latch 222 protrudes from the surface of the hook body 221 along the second horizontal direction, i.e., the latch 222 is disposed near the locking pin 21. The aforementioned limiting groove 2221 is disposed at the bottom of the latch 222. For example, the middle area of ​​the bottom of the latch 222 is recessed inward to form the limiting groove 2221 that engages with the locking pin 21.

[0121] Furthermore, the blocking block 222 is located at an end of the hook body 221 away from the rotation center along the first horizontal direction and is located outside the first chassis frame 11. With this arrangement, a larger first torque is formed between the blocking block 222 and the rotation center. When the first chassis frame 11 and the second chassis frame 12 are locked, the abutting portion 231 can drive the locking hook 22 to rotate under the action of a smaller abutting force, so as to lock the chassis 10.

[0122] Based on the above embodiment, the embodiment of the present application is provided with a guide slope on one side of the clamping block 222 toward the rotation center. The guide slope extends obliquely downward toward the front side along the first horizontal direction, and the guide slope is configured as a guide portion 2222. When the first chassis frame 11 moves toward the front side relative to the second chassis frame 12, a portion of the locking pin 21 is located in the moving path of the guide slope and abuts against the guide slope.

[0123] When the guide slope abuts the locking pin 21, the abutting force generated therebetween causes the locking hook 22 to rotate counterclockwise, thereby lifting the locking block 222. The first chassis frame 11 continues to slide, and the limiting groove 2221 is located below the locking pin 21. At this time, applying pressure to the locking hook 22 causes the limiting groove 2221 to engage with the locking pin 21.

[0124] Furthermore, the locking hook 22 also includes an unlocking lever 223, which is disposed at the bottom of the hook body 221. Along the first horizontal direction, the unlocking lever 223 is positioned near the center of rotation, and the end of the unlocking lever 223 forms an unlocking portion 2231. For example, the unlocking lever 223 can be designed as an L-shaped or T-shaped structure, comprising a vertical section and a horizontally extending section. One end of the vertical section is connected to the hook body 221, and the other end of the vertical section extends vertically and connects to the horizontally extending section. The end of the horizontally extending section forms the unlocking portion 2231.

[0125] In the embodiment of the present application, the unlocking portion 2231 is disposed opposite to the abutting portion 231 of the force application arm 23, and the unlocking portion 2231 is disposed opposite to the abutting portion 231 along the first horizontal direction, and the unlocking portion 2231 is located on the moving path of the abutting portion 231. When the force application arm 23 moves toward the rear side along the first horizontal direction, the abutting portion 231 abuts against the unlocking portion 2231 and applies an abutting force to the unlocking portion 2231. This abutting force is converted into a rotational force of the locking hook 22, causing the locking hook 22 to rotate, thereby disengaging the limiting groove 2221 from the locking pin 21.

[0126] It should be noted that the unlocking lever 223 provided in the embodiment of the present application is positioned near the rotation center. The second torque generated by the unlocking portion 2231 and the rotation center is smaller than the first torque. Therefore, the unlocking force required to be applied to the unlocking portion 2231 is much greater than the abutment force of the guide portion 2222. This arrangement prevents the chassis 10 from accidentally opening when in the locked state, thereby improving the operational reliability of the mobility scooter 100.

[0127] In one possible implementation, the unlocking lever 223 and the hook body 221 in the embodiment of the present application are located in the same rotational plane along the second horizontal direction. That is, along a direction perpendicular to the hook body 221, the unlocking lever 223 and the hook body 221 are located in the same rotational plane. This arrangement reduces the size of the locking structure along the second horizontal direction compared to a case where the unlocking lever 223 is located on the side of the hook body 221 facing away from the first chassis frame 11, thereby contributing to a more compact structure of the mobility scooter 100.

[0128] To simplify the locking and unlocking operations of the locking mechanism 20, the first chassis frame 11 provided in this embodiment of the present application is provided with an angle limiter 111. The angle limiter 111 is located near the rotation center and is located on the rotation path of the lock hook 22 and is capable of abutting against the hook body 221 of the lock hook 22. This arrangement can limit the rotation angle of the lock hook 22, preventing the lock hook 22 from rotating at a large angle, resulting in a long operation time and affecting the user experience.

[0129] In one possible implementation, the locking mechanism 20 provided in the embodiment of the present application further includes an elastic member 25, which is disposed between the locking hook 22 and the first chassis frame 11 and is configured to provide a locking force to the locking hook 22. When the chassis 10 is locked, the force-applying arm 23 is pushed forward in the first horizontal direction, causing the first chassis frame 11 to move relative to the second chassis frame 12. The abutment force between the guide ramp and the locking pin 21 overcomes the elastic force of the elastic member 25, causing the locking hook 22 to rotate. When the locking pin 21 is aligned with the retaining groove 2221 of the locking hook 22, the elastic member 25 engages the retaining groove 2221 with the locking pin 21.

[0130] Accordingly, when the chassis 10 is unlocked, the force-applying arm 23 is dragged rearwardly in the first horizontal direction to move the first chassis frame 11 relative to the second chassis frame 12. The abutting force applied by the abutting portion 231 to the unlocking portion 2231 overcomes the elastic force of the spring, causing the lock hook 22 to rotate, disengaging the locking pin 21 from the retaining groove 2221. This arrangement, based on the elastic force of the elastic member 25, not only simplifies the unlocking and locking operations but also improves the stability of the locked chassis 10.

[0131] Referring to Figure 12, the support assembly 30 in the embodiment of the present application includes at least a first connecting rod mechanism composed of multiple components; and / or a second connecting rod mechanism composed of multiple components, wherein the first connecting rod mechanism and the second connecting rod mechanism have some identical components; the support assembly 30 is described below.

[0132] The support assembly 30 includes a first linkage mechanism. The first linkage mechanism can be selectively disposed on the side of the chassis 10 along the second horizontal direction and is rotatably connected relative to the chassis 10. The rotation plane of the first linkage mechanism lies within a first plane, which is a plane defined by the vertical direction and the first horizontal direction. The first plane is located outside the chassis 10 along the second horizontal direction.

[0133] Specifically, the first linkage mechanism includes a seat bracket 32, a seat support frame 31 and a support 36; the seat bracket 32 ​​is used to install a seat cushion. When the mobility scooter 100 is in the unfolded state, the seat bracket 32 ​​is located at the rear end of the chassis 10 along the first horizontal direction, and the seat bracket 32 ​​is located above the chassis 10 along the vertical direction. A certain space is maintained between the seat bracket 32 ​​and the chassis 10 in the vertical direction, and the seat bracket 32 ​​maintains a certain distance from the steering rod along the first horizontal direction to facilitate the user to sit and operate the steering rod.

[0134] The seat bracket 32 ​​is disposed between the chassis 10 and the seat support frame 31. The seat bracket 32 ​​includes a first seat link 321 and a second seat link 322. The first seat link 321 and the second seat link 322 are spaced apart along a first horizontal direction. The first ends of the first seat link 321 and the second seat link 322 are respectively rotatably connected to the seat support frame 31 and are connected to different positions on the seat support frame 31.

[0135] Along the second horizontal direction, the support 36 is disposed on one side of the chassis 10, that is, the support 36 can be disposed outside the chassis 10. The second ends of the first seat link 321 and the second seat link 322 are rotatably connected to the support 36 and are connected to different positions on the support 36. Thus, the first seat link 321, the second seat link 322, the support 36, and the seat support frame 31 form the aforementioned first linkage mechanism, which is foldable and deployable. Furthermore, when the first linkage mechanism is fully folded, the seat frame 32 is located to the side of the chassis 10 along the second horizontal direction.

[0136] In related art foldable scooters, the lifting and folding mechanism is located between the chassis and the seat cushion, resulting in a thick folded scooter that is difficult to carry. However, when the scooter 100 of the present invention is fully folded, the seat bracket 32 ​​is located on one side of the chassis 10 along the second horizontal direction. It does not occupy the space above the chassis 10, reducing the thickness of the folded scooter 100 and thus reducing its folded size, making it easier to carry.

[0137] The mobility scooter 100 provided in the embodiment of the present application further includes a backrest bracket 33 and a transmission link 34, wherein the backrest bracket 33 is used to install a backrest cushion and is arranged on the rear side of the seat support frame 31 along the first horizontal direction. The backrest bracket 33 is rotatably connected to the seat support frame 31 and forms a first rotation point.

[0138] The transmission link 34 is used to connect the seat bracket 32 ​​and the backrest bracket 33. Exemplarily, the transmission link 34 is arranged between the seat bracket 32 ​​and the backrest bracket 33, and the two ends of the transmission link 34 are respectively rotatably connected to the backrest bracket 33 and the seat bracket 32, forming a second rotation point and a third rotation point, respectively.

[0139] Exemplarily, the seat frame 32 includes a first seat link 321 and a second seat link 322. One end of a transmission link 34 is pivotally connected to the backrest frame 33, forming a second pivot point. The other end of the transmission link 34 is selectively pivotally connected to either the first seat link 321 or the second seat link 322, forming a third pivot point. Thus, the backrest frame 33, transmission link 34, seat frame 32, and seat support frame 31 form a second linkage mechanism. In other words, the support assembly 30 in this embodiment also includes a second linkage mechanism.

[0140] In the embodiment of the present application, the line between the first rotation point and the second rotation point is defined as the first line, and the line between the second rotation point and the third rotation point is defined as the second line, and when the scooter 100 is fully unfolded, the angle formed between the first line and the second line is in the range of 0° to 10°.

[0141] In one possible implementation, the angle formed between the first connecting line and the second connecting line in the embodiment of the present application is configured to be 0°; that is, when the second linkage mechanism is fully extended, the first rotation point, the second rotation point and the third rotation point are collinear. In other words, the first rotation point, the second rotation point and the third rotation point are on the same straight line.

[0142] With this arrangement, when the mobility scooter 100 is in the deployed state and further locked using the locking assembly, the second linkage mechanism is in a self-locking state. The transmission link 34 not only functions as a transmission connection but also serves as a load-bearing rod to support the seat support frame 31. When the rider is driving the mobility scooter 100, the transmission link 34 can share some of the weight, that is, some of the weight acts on the locking pin 21 of the locking assembly, and some of the weight acts on the transmission link 34, thereby reducing the load-bearing strength of the locking pin 21.

[0143] The mobility scooter 100 provided in the embodiment of the present application further includes a first rod 35 , a first end of the first rod 35 being connected to the first chassis frame 11 , and a second end of the first rod 35 being connected to the first seat link 321 or the second seat link 322 .

[0144] It is understood that if the chassis 10 is linked to the first linkage mechanism, the second end of the first link 35 is linked to the first seat link 321. If the chassis 10 is linked to the second linkage mechanism, the second end of the first link 35 is linked to the second seat link 322. The second seat link 322 is arranged behind the first seat link 321 along the first horizontal direction, and the other end of the second seat link 322 is rotationally connected to the transmission link 34.

[0145] The following embodiments of the present application illustrate the linkage between the chassis 10 and the second linkage mechanism. The second seat link 322 has a bent portion at one end away from the seat support frame 31. The bent portion is disposed behind the support 36 along the first horizontal direction and pivotally connects around the support 36 to the first link 35.

[0146] The second seat link 322 includes a first end and a second end, wherein the first end of the second seat link 322 is rotatably connected to the seat support frame 31 , and a portion of the second seat link 322 close to the first end is rotatably connected to the transmission link 34 .

[0147] For example, a support arm is provided at the portion of the second seat link 322 near the first end, and the support arm extends toward the transmission link 34. One end of the transmission link 34 is rotatably connected to the backrest bracket 33 to form a second rotation point, and the other end of the transmission link 34 is connected to the support arm to form a third rotation point.

[0148] The second end of the second seat link 322 is usually rotatably connected to the support 36. In order to link the above-mentioned first chassis frame 11 with the second link mechanism, the second end of the second seat link 322 has an extension section, which is an integral part of the second seat link 322 and is configured as a bent portion. The bent portion is provided on the rear side of the support 36.

[0149] The bent portion bypasses the support 36 and is pivotally connected to the first lever 35. This arrangement not only creates a clearance between the bent portion and the chassis 10, but also effectively increases the swing range of the first lever 35, thereby increasing the sliding displacement of the first chassis frame 11 along the first horizontal direction. When the second linkage mechanism is folded or unfolded, it automatically retracts and unfolds the first chassis frame 11 and the second chassis frame 12.

[0150] It should be noted that the first lever is connected to the force application arm, or the first lever is configured as the force application arm. If the force application arm is connected to the first lever, the force application arm is disposed between the connecting rod folding mechanism and the first chassis frame, and the connecting rod folding mechanism drives the force application arm to move via the first lever. In one possible implementation, the first lever is configured as the force application arm, and the end of the first lever is slidably connected to the first chassis frame.

[0151] As shown in Figures 26 and 27 , the chassis 10 provided in this embodiment of the present application further includes a wire harness storage mechanism 40, which is disposed on the chassis 10 and connected to both the first chassis frame 11 and the second chassis frame 12. The cable harness is the electrical connection wire for the mobility scooter, and multiple cable harnesses are distributed at the bottom of the chassis 10; the cable harness storage mechanism 40 is used to uniformly and systematically store the multiple cable harnesses to prevent tangling.

[0152] As shown in Figures 28 and 29, the wire harness storage mechanism 40 includes a wire harness box 41 and a wire harness. The wire harness box 41 has a first end 411 and a second end 412 that are opposite to each other along its length. The first end 411 is fixedly connected to the first chassis frame 11, and the second end 412 is fixedly connected to the second chassis frame 12. The wire harness box 41 matches the wire harness so that the wire harness is arranged in the wire harness box 41. During the process of chassis deployment and storage, the wire harness box 41 can store, protect, and constrain the movement of the wire harness, preventing the wire harness from becoming tangled and tangled, ensuring the normal use of the mobility scooter. It can also prevent damage to the wire harness and protect its lifespan. At the same time, the wire harness is uniformly and neatly stored, improving the aesthetics of the mobility scooter.

[0153] The wiring harness has a first connection end and a second connection end facing each other along its length. The first connection end is fixedly connected to the first end portion 411, and the second connection end is fixedly connected to the second end portion 412. During the folding of the vehicle, the second end portion 412 of the wiring harness box 41 is pushed and moves along the first horizontal direction. The wiring harness moves under the constraints of the wiring harness box 41. Because the wiring harness box 41 has a corresponding radius during movement and deformation, the push and pull forces on the wiring harness are minimized to the greatest extent possible, thereby effectively protecting the wiring harness.

[0154] Referring to Figure 28, the chassis 10 is in the expanded state, the first chassis frame 11 slides to the first position, the first chassis frame 11 and the second chassis frame 12 are arranged horizontally, the first chassis frame 11 and the second chassis frame 12 are in the same plane, and the first chassis frame 11 and the second chassis frame 12 are adjacent; at this time, the first end 411 will move away from the second end 412 along the first horizontal direction.

[0155] Referring to Figure 29, the chassis 10 is in the storage state, the first chassis frame 11 slides to the second position, the first chassis frame 11 and the second chassis frame 12 at least partially overlap, and the first chassis frame 11 slides onto the second chassis frame 12; at this time, the first end 411 will be close to the second end 412 along the first horizontal direction.

[0156] In the embodiment of the present application, the wiring harness box 41 can be bent and deformed. The wiring harness box 41 includes a bending section 413. The bending section 413 has a preset bending radius, which can be set by those skilled in the art according to actual conditions.

[0157] When the first end 411 moves away from the second end 412 along the first horizontal direction, the bent section 413 moves closer to the first end 411. When the first end 411 moves closer to the second end 412 along the first horizontal direction, the bent section 413 moves away from the first end 411, and the straight section length of the wiring harness box 41 decreases.

[0158] Referring to Figure 30 , in this embodiment, the harness box 41 is a drag chain composed of multiple linked units. The drag chain has a receiving cavity in which the harness is placed. The harness is placed in the drag chain, protecting it from wear and tear, and preventing the harnesses from becoming entangled, worn, pulled apart, or becoming disorganized.

[0159] Continuing to refer to Figures 28-30, in the embodiment of the present application, the wire harness storage mechanism 40 also includes a storage box 43, which is fixedly connected to the first chassis frame 11; the storage box 43 has a first through hole, and the first end 411 and the bending section 413 are both arranged in the storage box 43 from the first through hole.

[0160] The storage box 43 includes a first area and a second area, the first area and the second area are adjacent to each other along a first horizontal direction, the first area is close to the second chassis frame 12 , and the second area is far from the second chassis frame 12 .

[0161] When the first end 411 moves away from the second end 412 along the first horizontal direction, the bent section 413 is located in the first area inside the storage box 43; when the first end 411 moves closer to the second end 412 along the first horizontal direction, the bent section 413 is located in the second area inside the storage box 43.

[0162] The storage box 43 is used to uniformly and regularly store the wiring harness and the wiring harness box 41, thereby improving the aesthetics of the mobility scooter. At the same time, when the chassis 10 is in the stored state, the wiring harness and the wiring harness box 41 will not fall due to their own gravity. It can also prevent the wiring harness and the wiring harness box 41 from contacting other components during the storage or unfolding of the chassis 10, thereby improving the safety of the mobility scooter.

[0163] The storage box 43 is provided with a fixing portion 431, the first end portion 411 is fixedly connected to the fixing portion 431, and the fixing portion 431 is located in the first area. The fixing portion 431 can be a threaded hole, and the first end portion 411 is fixedly connected to the fixing portion 431 via a threaded connector.

[0164] In the embodiment of the present application, the storage box 43 also has a second through hole, the first through hole and the second through hole have the same central axis, and the central axis of the first through hole and the second through hole is the first horizontal axis; and the first through hole and the second through hole are connected in the first horizontal direction.

[0165] 29 , as first end 411 approaches second end 412 along the first horizontal direction, a portion of bent section 413 extends from the second through hole outside storage box 43. When chassis 10 is in the stowed state, bent section 413 is prevented from abutting against the inner wall of storage box 43, protecting the wiring harness and wiring harness box 41 from bending deformation.

[0166] In the embodiment of the present application, the chassis 10 also includes a first connecting member 44 and a second connecting member 45; the storage box 43 includes a top plate and a bottom plate arranged opposite to each other in the vertical direction, a first fixing hole 432 is provided on the bottom plate, and a second fixing hole is provided on the first chassis frame 11, the first fixing hole 432 and the second fixing hole match each other, and the first connecting member 44 is connected to both the first fixing hole 432 and the second fixing hole, so that the storage box 43 is fixedly connected to the first chassis frame 11.

[0167] The storage box 43 includes a first side wall, which intersects with both the top plate and the bottom plate, and the two ends of the first side wall in the vertical direction are respectively connected to the top plate and the bottom plate, an avoidance groove 433 is provided on the first side wall, and a third fixing hole 434 is provided at the connection between the bottom plate and the first side wall, and a fourth fixing hole is provided on the first chassis frame 11, and the third fixing hole 434 matches the fourth fixing hole, and the second connecting member 45 is connected from the avoidance groove 433 to the third fixing hole 434 and the fourth fixing hole, so that the storage box 43 is fixedly connected to the first chassis frame 11.

[0168] In the embodiment of the present application, a first opening 435 and a second opening 436 are provided on the top plate, spaced apart along a first horizontal direction. The vertical projection of the first opening 435 is located within the vertical projection of the first region, and the vertical projection of the second opening 436 is located within the vertical projection of the second region. A portion of the wiring harness box 41 is exposed outside the storage box 43 through the first opening 435 and the second opening 436. The first opening 435 and the second opening 436 are used to clearly indicate the movable position of the wiring harness box 41 within the storage box 43. If the wiring harness box 41 becomes stuck during movement, it can be adjusted promptly through the first opening 435 and the second opening 436, facilitating maintenance by technicians.

[0169] In the embodiment of the present application, a wiring groove 437 is provided on the outer surface of the top plate. The wiring groove 437 is constructed to accommodate electrical connection wires to ensure the safety of wiring.

[0170] The electrical connection wires may be embedded in the wire protection groove 437 .

[0171] It should be noted that any one of the technical solutions disclosed in the present disclosure can solve one or more of the above-mentioned technical problems and achieve certain invention purposes to a certain extent; multiple technical disclosures can also be combined into an overall solution to solve one or more of the above-mentioned technical problems and achieve certain invention purposes; some of the technical disclosures can also be selected to combine into an overall solution, while adopting related technologies and deteriorated solutions, but the deterioration trend can be compensated by the means disclosed in this technology, and the above-mentioned one or more technical problems can be solved to a certain extent as a whole and certain invention purposes can be achieved; each technical disclosure combined into a complete technical solution constitutes an organic and inseparable overall solution, which solves technical problems as a whole and achieves certain invention purposes.

[0172] Any technical disclosure in this disclosure, as well as the recombination of multiple technical disclosures, can form a complete technical solution and can solve one or more of the above-mentioned technical problems and achieve the purpose of the invention. They all belong to the content of this disclosure and are the content that is directly and unambiguously determined based on the content of this disclosure.

[0173] Those skilled in the art will understand that the scope of the present invention is not limited to the above specific embodiments, and that certain elements of the embodiments may be modified and replaced without departing from the spirit of the present application. The scope of the present application is limited by the appended claims.

Claims

1. A vehicle, characterized in that: include: Chassis, seats and support components, One end of the support assembly is rotatably connected to the chassis, and the other end of the support assembly is rotatably connected to the seat, and the support assembly can drive the seat to be stored or unfolded; When the seat is in the unfolded state, the seat and the chassis are spaced apart in the vertical direction; When the seat is in the stowed state, the seat is attached to the chassis; The chassis comprises a first chassis frame and a second chassis frame, wherein the first chassis frame and the second chassis frame are arranged adjacent to each other along a first horizontal direction, and the first chassis frame can slide relative to the second chassis frame so that the chassis can be stored or unfolded; When the chassis is in the unfolded state, the first chassis frame slides to a first position, and the first chassis frame and the second chassis frame are adjacent to each other; When the chassis is in the storage state, the first chassis frame slides to a second position, and the first chassis frame and the second chassis frame at least partially overlap; The chassis is stored while the seat is stored, and the chassis is unfolded while the seat is unfolded; Wherein, a projection of the support assembly in the vertical direction does not overlap with a projection of the chassis in the vertical direction.

2. The vehicle according to claim 1, characterized in that The support assembly includes a first linkage mechanism, which includes a seat bracket, a seat support frame and a support; The support is fixedly connected to the second chassis frame, and the seat support frame is fixedly connected to the seat; The support is arranged on the side of the second chassis frame along the second horizontal direction; The seat bracket includes a seat connecting rod, one end of which is rotatably connected to the support, and the other end of which is rotatably connected to the seat support frame; The second horizontal direction is perpendicular to the first horizontal direction.

3. The vehicle according to claim 2, characterized in that When the first link mechanism is completely folded, the end of the seat bracket away from the support is inclined along the first horizontal direction and is located below the chassis along the vertical direction.

4. The vehicle according to claim 2, characterized in that The vehicle also includes a backrest bracket and a transmission connecting rod; The backrest bracket is rotatably connected to the seat support frame to form a first rotation point; The transmission connecting rod is arranged between the backrest bracket and the seat bracket, one end of the transmission connecting rod is rotatably connected with the backrest bracket to form a second rotation point; the other end of the transmission connecting rod is rotatably connected with the seat bracket to form a third rotation point; The backrest bracket, the transmission connecting rod, the seat bracket and the seat supporting frame form a second connecting rod mechanism.

5. The vehicle according to claim 4, characterized in that The seat bracket is used to install the seat cushion; When the second link mechanism is fully unfolded, the first rotation point is located above the seat cushion in the vertical direction; When the second link mechanism or the first link mechanism is completely folded, the seat cushion is located above the chassis and close to the upper surface of the chassis; and / or the seat cushion is in contact with the upper surface of the chassis.

6. The vehicle according to claim 4, characterized in that The backrest bracket is provided with a backrest cushion; When the second link mechanism is fully folded, the backrest pad is located above the chassis, and the back side of the backrest pad is close to the upper surface of the chassis; and / or the back side of the backrest cushion is in contact with the upper surface of the chassis; Along the first horizontal direction, the back cushion and the seat cushion are arranged opposite to each other and are located in the same plane.

7. The vehicle according to claim 4, characterized in that A first connecting line is defined between the first rotation point and the second rotation point, and a second connecting line is defined between the second rotation point and the third rotation point; The first rotation point, the second rotation point and the third rotation point are configured so that when the second link mechanism is fully extended, the angle between the first connecting line and the second connecting line ranges from 0° to 10°.

8. The vehicle according to claim 4, characterized in that The vehicle further includes a first rod; The first end of the first rod is connected to the first chassis frame; The seat connecting rod comprises a first seat connecting rod and a second seat connecting rod, and along the first horizontal direction, the first seat connecting rod is arranged in front of the second seat connecting rod, and the two are arranged in parallel; One end of the first seat link and one end of the second seat link are both rotatably connected to the support, and the other end of the first seat link and the other end of the second seat link are both rotatably connected to the seat support frame; The second end of the first rod is rotatably connected to the first seat link or the second seat link to enable the first chassis frame to be linked with the seat bracket. When the seat bracket is configured as the first link mechanism or the second link mechanism is actuated, the seat bracket drives the first chassis frame to slide relative to the second chassis frame along the first horizontal direction.

9. The vehicle according to claim 8, characterized in that One end of the second seat link away from the seat support frame has a bending portion, and the bending portion is arranged at the rear side of the support along the first horizontal direction and bypasses the support to be rotatably connected to the first rod.

10. The vehicle according to claim 4, characterized in that The vehicle further comprises a controller, a position sensor, a first actuator and a second actuator; The control signal of the controller is connected to both the first actuator and the position sensor; The position sensor is arranged on the seat support frame or the support to detect the action of the first link mechanism or the second link mechanism; The first actuator is disposed between the first chassis frame and the second chassis frame, and the controller is configured to control the first actuator to operate when the first link mechanism or the second link mechanism operates, so that the first chassis frame slides relative to the second chassis frame along the first horizontal direction; The second actuator acts on the first linkage mechanism or the second linkage mechanism to fold or unfold the vehicle; The second actuator is connected to the controller signal, and when the second actuator is actuated, the controller controls the first actuator to actuate.

11. The vehicle according to claim 4, characterized in that The backrest bracket rotates clockwise relative to the seat support frame to fold the second link mechanism; The seat support frame is provided with a first limiting surface on one side facing the backrest support, and the backrest support is provided with a first limiting block matched with the first limiting surface; When the second link mechanism is fully extended, the first limiting block abuts against the first limiting surface.

12. The vehicle according to claim 11, characterized in that A second limiting surface is provided on one side of the seat support frame close to the seat bracket; The second limiting surface is arranged in cooperation with the first seat connecting rod or the second seat connecting rod; When the second link mechanism is completely folded, the second limiting surface abuts against the first seat link or the second seat link.

13. The vehicle according to claim 1, characterized in that The vehicle further includes a locking mechanism, the locking mechanism being disposed between the first chassis frame and the second chassis frame, the locking mechanism being configured to lock the first chassis frame and the second chassis frame when the chassis is fully unfolded, and to unlock the locked state of the first chassis frame and the second chassis frame when the chassis is stowed; The locking mechanism includes a locking pin and a locking hook; The locking pin is disposed on the second chassis frame, and the locking pin is configured to be receivable in a gap between the first chassis frame and the second chassis frame; The locking hook is rotatably connected to the first chassis frame, and the locking hook comprises a limiting groove, a guide portion and an unlocking portion, and the limiting groove and the guide portion are respectively opposite to the locking pin along the first horizontal direction; The guide portion is configured so that during the unfolding process of the chassis, the guide portion abuts against the locking pin and causes the locking hook to rotate; The limiting groove is configured so that when the chassis is fully unfolded, the locking pin is snapped into the limiting groove; The unlocking portion is configured such that when the chassis is stored, the unlocking portion receives the unlocking force and drives the lock hook to rotate, and the locking pin escapes from the limiting groove.

14. The vehicle according to claim 13, characterized in that The first end of the first rod is slidably connected to the first chassis frame, and the second end of the first rod is configured as a force applying portion; The first end of the first rod has an abutment portion that cooperates with the unlocking portion, and the abutment portion is configured to abut against the unlocking portion and provide an unlocking force when the force-applying portion is subjected to force and the first rod slides relative to the locking hook.

15. The vehicle according to claim 14, characterized in that A guide pin is provided between the first chassis frame and the locking hook; A guide groove is provided at the first end of the first rod, the guide pin is slidably installed in the guide groove, and the end of the guide pin is fixed to the first chassis frame.

16. The vehicle according to claim 15, characterized in that The locking hook comprises a hook body; In the first horizontal direction, one end of the hook body is provided with a hinge hole; The hook body is mounted on the first chassis frame through the hinge hole and forms a rotation center of the locking hook.

17. The vehicle according to claim 16, characterized in that The locking hook also includes a clamping block; The clamping block is arranged on the surface of the hook body facing the second chassis frame; The clamping block is located at an end of the hook body away from the rotation center along the first horizontal direction and outside the first chassis frame; The bottom of the clamping block is recessed to form the limiting groove. A guiding inclined surface is provided on one side of the clamping block facing the rotation center, and the guiding inclined surface is configured as the guiding portion.

18. The vehicle according to claim 17, characterized in that The locking hook further comprises an unlocking lever disposed at the bottom of the hook body; Along the first horizontal direction, the unlocking lever is arranged close to the rotation center, and the end of the unlocking lever forms the unlocking portion; along the direction perpendicular to the hook body, the unlocking lever and the hook body are located in the same rotation plane.

19. The vehicle according to claim 17, characterized in that The first chassis frame is provided with an angle limiting portion; The angle limiting portion is arranged close to the rotation center, is located on the rotation path of the lock hook, and abuts against the lock hook.

20. The vehicle of claim 14, wherein: The locking mechanism further comprises an elastic member; The elastic member is disposed between the locking hook and the first chassis frame, and the elastic member is used to provide a locking force to the locking hook.

21. The vehicle according to claim 2, characterized in that The vehicle further includes a wire harness storage mechanism, the wire harness storage mechanism including a wire harness box and a wire harness, a first end of the wire harness box being fixedly connected to the first chassis frame, and a second end of the wire harness box being fixedly connected to the second chassis frame; The wiring harness is arranged in the wiring harness box; When the chassis is in the unfolded state, the first end is away from the second end along the first horizontal direction; When the chassis is in the storage state, the first end is close to the second end along the first horizontal direction.

22. The vehicle according to claim 21, characterized in that The wire harness storage mechanism further comprises a storage box, and the storage box is fixedly connected to the first chassis frame; The wiring harness box includes a bending section; The storage box has a first through hole, and the first end portion and the bent section are both arranged in the storage box from the first through hole; When the first end is away from the second end along the first horizontal direction, the bent section is close to the first end, and the bent section is located in a first area in the storage box; When the first end is close to the second end along the first horizontal direction, the bent section is away from the first end, and the bent section is located in the second area inside the storage box; The first area is close to the second chassis frame, and the first end is fixedly connected in the first area; and the second area is far away from the second chassis frame.

23. The vehicle according to claim 22, characterized in that The storage box further has a second through hole, and the first through hole and the second through hole are connected in the first horizontal direction; When the first end approaches the second end along the first horizontal direction, a portion of the bent section extends out of the storage box from the second through hole.

24. The vehicle according to claim 23, characterized in that The top plate is provided with a first opening and a second opening spaced apart along the first horizontal direction, the projection of the first opening in the vertical direction is located within the projection of the first area in the vertical direction, and the projection of the second opening in the vertical direction is located within the projection of the second area in the vertical direction; Part of the wire harness box is exposed outside the storage box from the first opening and the second opening.

25. The vehicle of claim 21, wherein: The wire harness box is a drag chain formed by linking a plurality of units. The drag chain has a receiving cavity, and the wire harness is arranged in the receiving cavity.

26. A method for using a vehicle according to any one of claims 1 to 25, characterized in that: The vehicle comprises a chassis, a support, a seat bracket, a seat support frame, a backrest bracket and a transmission connecting rod; The seat bracket includes a seat connecting rod, one end of which is rotatably connected to the seat supporting frame; Along the second horizontal direction, the support is arranged on the side of the chassis, and the support is rotatably connected to one end of the seat connecting rod; and the seat bracket, the seat support frame and the support form a first connecting rod mechanism; The backrest bracket is rotatably connected to the seat support frame, the transmission connecting rod is rotatably connected to the backrest bracket and the seat support frame respectively, and the backrest bracket, the transmission connecting rod, the seat bracket and the seat support frame form a second connecting rod mechanism; The chassis comprises a first chassis frame and a second chassis frame; along a first horizontal direction, the first chassis frame is slidably mounted on one side of the second chassis frame, and the two are located in the same plane; and the seat support is linked to the first chassis frame; The method of use includes: When folding, the backrest bracket is rotated clockwise, and the transmission connecting rod and the seat bracket are rotated counterclockwise relative to the seat support frame; the end of the seat bracket away from the seat support frame drives the first chassis frame to move along the first horizontal direction and store the chassis; and / or When unfolding, the backrest bracket is rotated counterclockwise, and the transmission connecting rod and the seat bracket are rotated clockwise relative to the backrest bracket and the seat support frame. The end of the seat bracket away from the seat support frame drives the first chassis frame to move along the first horizontal direction and unfold the chassis.

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