Scooter bracket, scooter, and scooter scene simulation method

Abstract

This application belongs to the field of scooter technology, specifically relating to a scooter bracket, a scooter, and a scooter scenario simulation method. A scooter bracket is characterized by comprising a bracket mainboard, a steering support mechanism, and a sliding assist mechanism. The steering support mechanism and the sliding assist mechanism are both disposed on the bracket mainboard. The steering support mechanism is used to support the bracket mainboard and perform steering functions, and the sliding assist mechanism is used to provide auxiliary support and assist sliding functions. The scooter bracket and scooter provided in this application have technical advantages such as a long service life and a good user experience.

Description

Technical Field

[0001] The present application belongs to the technical field of scooters, and in particular relates to a scooter bracket, a scooter, and a scooter scene simulation method. Background Art

[0002] Existing scooters suffer from the following technical issues: Scooters' wheels are typically fixed to the scooter's base, and steering relies on shifting the body's center of gravity to adjust the direction of movement. This creates significant torque between the wheels and the scooter, which can easily cause wheel wear and damage to the connection, shortening the scooter's service life. Furthermore, the fixed mounting between the base and wheels creates a poor user experience when turning or sliding, failing to achieve the same user experience as a snowboard. Summary of the Invention

[0003] In view of this, the present application provides a scooter bracket, a scooter and a scooter scene simulation method to solve the technical problems existing in the prior art.

[0004] The scooter bracket provided by this application to solve its technical problems is:

[0005] A scooter bracket is characterized by comprising a bracket main board, a support steering mechanism and a sliding assist mechanism, wherein the support steering mechanism and the sliding assist mechanism are both arranged on the bracket main board, the support steering mechanism is used to support the bracket main board and complete the steering function, and the sliding assist mechanism is used to provide auxiliary support and auxiliary sliding effects.

[0006] The scooter stand preferably includes a steering support mechanism including a steering support wheel, and a gliding assist mechanism including a first auxiliary wheel and a second auxiliary wheel, with the first auxiliary wheel and the second auxiliary wheel being positioned on either side of the steering support wheel. When the stand mainboard is positioned horizontally, the steering support wheel contacts the road surface, while the first auxiliary wheel and the second auxiliary wheel are suspended in the air.

[0007] As a preferred embodiment of the scooter bracket, a supporting steering hole is provided on the bracket main board, and the supporting steering mechanism includes a supporting steering wheel, a steering wheel bracket, a damping adjusting member, an elastic damping member, and a steering shaft; the supporting steering wheel is assembled on the steering wheel bracket, the elastic damping member is provided on the bracket main board, the steering shaft passes through and is accommodated in the supporting steering hole, one end of the steering shaft located at the lower part of the bracket main board is connected to the steering wheel bracket, and one end of the steering shaft located at the upper part of the bracket main board is connected to the damping adjusting member; the elastic damping member and the damping adjusting member are in close contact with each other, and when the supporting steering wheel and the steering wheel bracket rotate, they can drive the steering shaft to rotate together, and then through the interaction between the elastic damping member and the damping adjusting member, the elastic damping member is elastically deformed to increase the damping during steering.

[0008] As a preferred embodiment of the scooter bracket, the damping adjustment member includes a damping seat and a damping wheel, and the damping seat and the damping wheel are rotatably connected; a damping groove is provided on the bracket main board, and the supporting steering hole is provided on the bottom of the damping groove; the damping seat is provided in the damping groove, and the steering shaft passes through the damping seat and is connected to the damping wheel.

[0009] As a preferred embodiment of the scooter bracket, a wheel axle hole is provided on the damping seat, an arc-shaped adjustment portion and an axis-shaped wheel axle portion are provided on the damping wheel, the axis-shaped wheel axle portion is assembled in the wheel axle hole, and the arc-shaped adjustment portion is used to cooperate with the elastic damping member.

[0010] As a preferred embodiment of the scooter bracket, the elastic damping member includes a raised matching portion, an elastic deformation portion and an assembly portion, the raised matching portion is used to match the arc-shaped adjustment portion on the damping wheel, the elastic deformation portion is used to generate elastic deformation, and the assembly portion is used to fix the elastic damping member to the bracket main board.

[0011] As a preferred embodiment of the scooter bracket, the supporting steering mechanism also includes a clamping piece, which is assembled on the bracket main board and located on the upper part of the damping adjustment piece; a gap is formed between the clamping piece and the bracket main board, and the raised mating part passes through the gap between the clamping piece and the bracket main board and is in close contact with the arc-shaped adjustment part.

[0012] As a preferred embodiment of the scooter bracket, the arc-shaped adjustment portion includes a first convex arc, a concave arc and a second convex arc, the first convex arc and the second convex arc are smoothly connected by the concave arc; the convex matching portion is in close contact with the concave arc.

[0013] As a preferred embodiment of the scooter bracket, the steering shaft is provided with an external threaded portion and a nut portion, the damping wheel is provided with a threaded hole, and the steering wheel bracket is provided with a bracket light hole. The external threaded portion of the steering shaft passes through the bracket light hole and the support steering hole on the bracket main board, and a fixed connection is established through the cooperation between the external threaded portion and the threaded hole on the damping wheel.

[0014] As a preferred embodiment of the scooter bracket, a gasket is further provided between the bracket mainboard and the steering wheel bracket, the gasket is provided with a gasket light hole, and the steering shaft passes through and is accommodated in the gasket light hole.

[0015] As a preferred embodiment of the scooter bracket, the sliding auxiliary mechanism includes a sliding arm, a first auxiliary wheel, a second auxiliary wheel, an inlay component and a connecting assembly; the connecting assembly includes a cap bolt and a movable nut; the sliding arm is provided with an inlay groove, a first sliding wing, a second sliding wing and a front fork; the bracket main board is provided with an inlay matching groove and a front fork hole; the first auxiliary wheel and the second auxiliary wheel are respectively assembled on the first sliding wing and the second sliding wing, the front fork is arranged in the front fork hole, and the inlay component is simultaneously embedded in the inlay groove and the inlay matching groove; the inlay groove, the inlay matching groove and the inlay component are all provided with a light hole for passing the cap bolt, the cap bolt passes through and is accommodated in the inlay groove, the inlay matching groove and the light hole on the inlay component and is fastened into one by cooperating with the movable nut.

[0016] The scooter provided by this application to solve its technical problems is:

[0017] A scooter is characterized by comprising a base plate and two scooter brackets according to any of the above technical solutions; the scooter brackets are fixedly mounted on the base plate.

[0018] The scooter scene simulation method provided by this application to solve its technical problems is:

[0019] A scooter scene simulation method, characterized in that: a scooter bracket according to any of the aforementioned technical solutions is used to achieve scene simulation; wherein: during straight-line sliding, the support steering mechanism contacts the road surface to provide support force; during lateral sliding, the support steering mechanism completes the steering function, and the support steering mechanism and the sliding assist mechanism simultaneously contact the road surface to provide support force.

[0020] Beneficial technical effects:

[0021] By employing a supporting steering mechanism and an auxiliary sliding mechanism, this application allows for easy and natural steering or sideways sliding with only a slight shift in the body's center of gravity. Compared to existing scooters, the torque and mechanical impact between the wheels and the base are reduced, which helps extend the scooter's service life. Furthermore, the scooter stand and scooter provided by this application utilize the supporting steering wheel to provide support during straight-line sliding. When turning or gliding sideways, the supporting steering wheel completes the steering, while the supporting steering wheel and two auxiliary wheels provide support simultaneously. This produces the effect of a snowboard during movement, providing a better user experience than existing technologies.

[0022] The technical solutions and technical effects of this application are described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 : Schematic diagram of the scooter bracket structure of this application;

[0024] Figure 2 : Figure 1 Exploded diagram of the center support steering mechanism structure;

[0025] Figure 3 : Figure 1 Exploded diagram of the first-dimensional structure of the mid-slide assist mechanism;

[0026] Figure 4 : Figure 1 Exploded diagram of the second-dimensional structure of the mid-slide assist mechanism;

[0027] Figure 5 : Schematic diagram of the position relationship between the supporting steering wheel, the first auxiliary wheel, and the second auxiliary wheel;

[0028] Figure 6 : Schematic diagram of the structure of the scooter disclosed in this application;

[0029] Logo Description:

[0030] 10-bracket mainboard, 20-support steering mechanism, 30-sliding auxiliary mechanism;

[0031] 110-support steering hole, 120-damping groove, 130-inlay matching groove, 140-front fork hole;

[0032] 210-steering wheel support, 220-steering wheel bracket, 230-damping adjustment member, 240-elastic damping member, 250-steering shaft, 260-pressing member, 270-gasket;

[0033] 2310-damping seat, 2311-axle hole;

[0034] 2320-damping wheel, 2321-arc-shaped adjustment part, 2322-axle-shaped wheel shaft part;

[0035] 2323-first convex arc, 2324-concave arc, 2325-second convex arc, 2326-threaded hole;

[0036] 2410-protruding matching portion, 2420-elastic deformation portion, 2430-assembly portion;

[0037] 2510-external thread part, 2520-nut part;

[0038] 310 - sliding arm, 320 - first auxiliary wheel, 330 - second auxiliary wheel, 340 - inlaid component, 350 - connecting assembly;

[0039] 3510-capped bolt, 3520-slip nut;

[0040] 3110 - inlay groove, 3120 - first sliding wing, 3130 - second sliding wing, 3140 - front fork. DETAILED DESCRIPTION

[0041] For the convenience of description, this application makes the following conventions: 1. The side of the scooter bracket close to the road is the lower part of the scooter bracket and the bracket main board, and the side of the scooter bracket away from the road is the upper part of the scooter bracket. 2. The horizontal setting of the bracket main board refers to the situation where the scooter is placed on a basically flat road surface and the bracket main board is kept roughly parallel to the road surface (see Figure 5 At the same time, the scooter bracket is installed on the scooter base through the bracket mainboard. When the bracket mainboard is placed horizontally, the scooter base is also placed horizontally. Conversely, when the scooter and its base are placed horizontally, the bracket mainboard is also placed horizontally (please refer to Figure 6 ).

[0042] See also Figures 1-6 The scooter stand provided in this application includes a stand main plate 10, a support steering mechanism 20, and a slide assist mechanism 30. The support steering mechanism 20 and the slide assist mechanism 30 are both arranged on the stand main plate 10. The support steering mechanism 20 is used to support the stand main plate 10 and perform the steering function, and the slide assist mechanism 30 is used to provide auxiliary support and assist slide functions.

[0043] The bracket main plate 10 is provided with a support steering hole 110, a damping groove 120, an inlay matching groove 130 and a front fork hole 140. The support steering hole 110 is provided on the groove bottom of the damping groove 120.

[0044] The supporting steering mechanism 20 includes a supporting steering wheel 210 , a steering wheel bracket 220 , a damping adjustment member 230 , an elastic damping member 240 , a steering shaft 250 , a pressing member 260 and a gasket 270 .

[0045] The supporting steering wheel 210 is assembled on the steering wheel bracket 220, and the steering wheel bracket 220 is used to mount the supporting steering wheel 210 on the bracket main board 10. Various casters in the prior art can be used as the supporting steering wheel 210 of the present application, and various caster mounting components in the prior art can also be used as the steering wheel bracket 220 of the present application.

[0046] The damping adjustment member 230 includes a damping seat 2310 and a damping wheel 2320, which are rotatably connected. The damping seat 2310 is provided with an axle hole 2311, and the damping wheel 2320 is provided with an arc-shaped adjustment portion 2321 and an axial wheel shaft portion 2322. The axial wheel shaft portion 2322 is assembled in the axle hole 2311. The arc-shaped adjustment portion 2321 is used to cooperate with the elastic damping member 240. The damping wheel 2320 is provided with a threaded hole 2326.

[0047] The elastic damping member 240 includes a protruding mating portion 2410, an elastic deformation portion 2420 and an assembly portion 2430. The protruding mating portion 2410 is used to cooperate with the arc-shaped adjustment portion 2321 on the damping wheel 2320, the elastic deformation portion 2420 is used to generate elastic deformation, and the assembly portion 2430 is used to fix the elastic damping member 240 to the bracket mainboard 10.

[0048] The arc-shaped adjustment portion 2321 includes an integrally formed first convex arc 2323, a concave arc 2324, and a second convex arc 2325. The first convex arc 2323 and the second convex arc 2325 are smoothly connected by the concave arc 2324. The convex matching portion 2410 and the concave arc 2324 are in close contact.

[0049] The elastic damping member 240 is arranged on the bracket main board 10, the steering shaft 250 passes through and is accommodated in the support steering hole 110 on the bracket main board 10, the end of the steering shaft 250 located at the lower part of the bracket main board 10 is connected to the steering wheel bracket 220, and the end of the steering shaft 250 located at the upper part of the bracket main board 10 is connected to the threaded hole 2326 of the damping wheel 2320.

[0050] The steering shaft 250 is provided with an external threaded portion 2510 and a nut portion 2520. The steering wheel bracket 220 is provided with a bracket aperture. The external threaded portion 2510 of the steering shaft 250 passes through the bracket aperture and the supporting steering hole 110 on the bracket mainboard 10, and is fixedly connected to the damping wheel 2320 through the mating engagement between the external threaded portion 2510 and the threaded hole 2326. When the supporting steering wheel 210 and the steering wheel bracket 220 rotate, the steering shaft 250 is driven to rotate, which in turn drives the damping wheel 2320 to rotate together. When the damping wheel 2320 rotates, the first convex arc 2323 and / or the second convex arc 2325 exerts pressure on the protruding mating portion 2410 of the elastic damping member 240. This causes the elastic damping member 240 to apply a reaction force to the damping wheel 2320 through the elastic deformation portion 2420, thereby increasing steering damping.

[0051] The pressing member 260 is mounted on the bracket mainboard 10 and is located above the damping wheel 2320. A gap is formed between the pressing member 260 and the bracket mainboard 10. The protruding mating portion 2410 passes through the gap between the pressing member 260 and the bracket mainboard 10 and comes into close contact with the concave arc 2324 of the arc-shaped adjustment portion 2321. In alternative embodiments of the present application, an opening or hole for accommodating the protruding mating portion 2410 may be provided on the pressing member 260 at a location corresponding to the location where the protruding mating portion 2410 is mounted, thereby facilitating the installation of the protruding mating portion 2410.

[0052] The gasket 270 is provided between the bracket main board 10 and the steering wheel bracket 220. The gasket 270 is provided with a gasket light hole, and the steering shaft 250 passes through and is accommodated in the gasket light hole. The gasket 270 is used to increase the stability of the steering wheel bracket 220 and the supporting steering wheel 210 when rotating.

[0053] The sliding assist mechanism 30 includes a sliding lever arm 310 , a first auxiliary wheel 320 , a second auxiliary wheel 330 , an inlay component 340 , and a connecting assembly 350 . The connecting assembly 350 includes a cap screw 3510 and a movable nut 3520 .

[0054] The sliding arm 310 is provided with an inlay groove 3110, a first sliding wing 3120, a second sliding wing 3130, and a front fork 3140. The front fork 3140 has a columnar structure. The first and second auxiliary wheels 320 and 330 are mounted on the first and second sliding wing 3120 and 3130, respectively. The front fork 3140 is positioned within the front fork hole 140 of the bracket main plate 10. The inlay component 340 is inserted into both the inlay groove 3110 and the inlay fitting groove 130 of the bracket main plate 10. The inlay groove 3110, the inlay fitting groove 130, and the inlay component 340 are each provided with a clear hole for a cap screw 3510 to pass through. The cap screw 3510 passes through and is received in the clear hole in the inlay groove 3110, the inlay fitting groove 130, and the inlay component 340. The cap screw 3510, in conjunction with the movable nut 3520, secures the bracket main plate 10, the sliding arm 310, and the inlay component 340 together.

[0055] The first auxiliary wheel 320 and the second auxiliary wheel 330 are respectively arranged on both sides of the supporting steering wheel 210; when the bracket main board 10 is arranged horizontally, the supporting steering wheel 210 contacts the road surface, and the first auxiliary wheel 320 and the second auxiliary wheel 330 are suspended in the air. Figure 5 The horizontal arrangement of the main frame 10 means that when the scooter stand is placed on a substantially flat surface, if the main frame 10 is generally parallel to the surface, the supporting steering wheel 210 contacts the surface, while the first and second auxiliary wheels 320 and 330 are suspended in the air. When sliding sideways, the main frame 10 tilts and lowers in the corresponding direction, at which point the main frame 10 is no longer parallel to the surface, and the first and second auxiliary wheels 320 and 330 begin to contact the surface and provide support.

[0056] See also Figure 6 A scooter made using the scooter bracket provided in this application includes a base plate and two scooter brackets; the two scooter brackets are fixedly mounted at the front and rear ends of the base plate. The scooter is placed on a substantially flat surface, with the base plate and the front and rear bracket main plates 10 generally parallel to the surface. The front and rear support steering wheels 210 are in contact with the surface, while the front and rear auxiliary wheels are suspended in the air.

[0057] Principle and Effect: When the scooter bracket and the scooter it comprises are in linear motion, the two front and rear support steering wheels 210 primarily contact the road surface, while the four front and rear auxiliary wheels remain suspended. When turning or sliding sideways is required, the scooter base and the two front and rear bracket main plates 10 tilt and lower in the corresponding direction. At this point, the two support steering wheels 210 naturally complete the steering adjustment, and the corresponding auxiliary wheels begin to contact the road surface and, together with the support steering wheels 210, provide support. Through this principle, the scooter bracket and scooter provided by this application can easily and naturally complete turning or sliding sideways with only a slight shift in the body's center of gravity. Compared to existing scooters, the torque and mechanical impact between the wheels and base are reduced, which helps extend the scooter's service life. Furthermore, when sliding in a straight line, the support force provided by the scooter bracket and scooter provided by this application is primarily provided by the support steering wheels. When turning or sliding sideways, the support steering wheels complete the steering, while the support steering wheels and the auxiliary wheels provide support simultaneously. This creates the effect of a snowboard during movement, providing a better user experience than existing technologies.

[0058] As can be seen from the above description, the present application also discloses a scooter scene simulation method, which uses the scooter bracket disclosed in the present application to realize the scene simulation; wherein: during straight sliding, the support steering mechanism 20 mainly contacts the road surface to provide support force; during lateral sliding, the support steering mechanism 20 completes the steering function, and the support steering mechanism 20 and the sliding auxiliary mechanism 30 simultaneously contact the road surface and provide support force.

[0059] The above describes the technical solutions and technical effects of the present application in detail in combination with the drawings and specific embodiments of the specification. It should be noted that the specific implementation methods disclosed in the specification are only preferred embodiments of the present application, and technical personnel in the field can also develop other embodiments on this basis; any simple deformation and equivalent substitution that does not deviate from the innovative concept of the present application are covered by the present application and fall within the scope of protection of this patent.

Claims

1. Scooter bracket, characterized by: The invention comprises a support main board (10), a support steering mechanism (20) and a slide assist mechanism (30), wherein the support steering mechanism (20) and the slide assist mechanism (30) are both arranged on the support main board (10), the support steering mechanism (20) is used to support the support main board (10) and complete the steering function, and the slide assist mechanism (30) is used to provide auxiliary support and auxiliary slide functions; The support steering mechanism (20) includes a support steering wheel (210), and the sliding auxiliary mechanism (30) includes a first auxiliary wheel (320) and a second auxiliary wheel (330), wherein the first auxiliary wheel (320) and the second auxiliary wheel (330) are respectively arranged on both sides of the support steering wheel (210); when the bracket main board (10) is placed horizontally, the support steering wheel (210) contacts the road surface, and the first auxiliary wheel (320) and the second auxiliary wheel (330) are suspended in the air; The bracket mainboard (10) is provided with a support turning hole (110); The supporting steering mechanism (20) further includes a steering wheel bracket (220), a damping adjustment member (230), an elastic damping member (240), and a steering shaft (250); The supporting steering wheel (210) is assembled on the steering wheel bracket (220), the elastic damping member (240) is arranged on the bracket main plate (10), the steering shaft (250) passes through and is accommodated in the supporting steering hole (110), one end of the steering shaft (250) located at the lower part of the bracket main plate (10) is connected to the steering wheel bracket (220), and one end of the steering shaft (250) located at the upper part of the bracket main plate (10) is connected to the damping adjustment member (230); The elastic damping member (240) and the damping adjustment member (230) are in contact with each other, and when the supporting steering wheel (210) and the steering wheel bracket (220) rotate, they can drive the steering shaft (250) to rotate together, thereby causing the elastic damping member (240) to generate elastic deformation through the interaction between the elastic damping member (240) and the damping adjustment member (230); The damping adjustment member (230) comprises a damping seat (2310) and a damping wheel (2320), and the damping seat (2310) and the damping wheel (2320) are rotatably connected; A damping groove (120) is provided on the bracket main plate (10), and the supporting steering hole (110) is provided on the groove bottom of the damping groove (120); the damping seat (2310) is provided in the damping groove (120), and the steering shaft (250) passes through the damping seat (2310) and is connected to the damping wheel (2320); The damping seat (2310) is provided with a wheel axle hole (2311), and the damping wheel (2320) is provided with an arc-shaped adjustment portion (2321) and an axial wheel axle portion (2322), the axial wheel axle portion (2322) is assembled in the wheel axle hole (2311), and the arc-shaped adjustment portion (2321) is used to cooperate with the elastic damping member (240); The elastic damping member (240) comprises a protruding mating portion (2410), an elastic deformation portion (2420) and an assembly portion (2430), wherein the protruding mating portion (2410) is used to cooperate with the arc-shaped adjustment portion (2321) on the damping wheel (2320), the elastic deformation portion (2420) is used to generate elastic deformation, and the assembly portion (2430) is used to fix the elastic damping member (240) to the bracket mainboard (10).

2. The scooter bracket according to claim 1, characterized in that: The supporting steering mechanism (20) further includes a pressing member (260), wherein the pressing member (260) is assembled on the bracket main board (10) and is located above the damping adjustment member (230); A gap is formed between the pressing member (260) and the bracket main board (10), and the protruding matching portion (2410) passes through the gap between the pressing member (260) and the bracket main board (10) and contacts the arc-shaped adjustment portion (2321).

3. The scooter bracket according to claim 2, characterized in that: The arc-shaped adjustment portion (2321) includes a first convex arc (2323), a concave arc (2324) and a second convex arc (2325), wherein the first convex arc (2323) and the second convex arc (2325) are smoothly connected through the concave arc (2324); the convex matching portion (2410) and the concave arc (2324) are in close contact.

4. The scooter bracket according to claim 3, characterized in that: The steering shaft (250) is provided with an external threaded portion (2510) and a nut portion (2520), the damping wheel (2320) is provided with a threaded hole (2326), and the steering wheel bracket (220) is provided with a bracket light hole. After the external threaded portion (2510) of the steering shaft (250) passes through the bracket light hole and the supporting steering hole (110) on the bracket main board (10), a fixed connection is established through the cooperation between the external threaded portion (2510) and the threaded hole (2326) on the damping wheel (2320).

5. The scooter bracket according to claim 4, characterized in that: A gasket (270) is further provided between the bracket mainboard (10) and the steering wheel bracket (220), and a gasket light hole is provided on the gasket (270), and the steering shaft (250) passes through and is accommodated in the gasket light hole.

6. The scooter bracket according to claim 5, characterized in that: The sliding auxiliary mechanism (30) further includes a sliding lever arm (310), an inlaid component (340), and a connecting assembly (350); the connecting assembly (350) includes a capped bolt (3510) and a movable nut (3520); The sliding arm (310) is provided with an inlay groove (3110), a first sliding wing (3120), a second sliding wing (3130) and a front fork portion (3140); the bracket main plate (10) is provided with an inlay matching groove (130) and a front fork hole (140); The first auxiliary wheel (320) and the second auxiliary wheel (330) are respectively assembled on the first sliding wing (3120) and the second sliding wing (3130); the front fork portion (3140) is arranged in the front fork hole (140); the inlay component (340) is simultaneously embedded in the inlay groove (3110) and the inlay matching groove (130); the inlay groove (3110), the inlay matching groove (130) and the inlay component (340) are all provided with a light hole for passing the cap bolt (3510); the cap bolt (3510) passes through and is accommodated in the light hole on the inlay groove (3110), the inlay matching groove (130) and the inlay component (340) and fastens the bracket mainboard (10), the sliding force arm (310) and the inlay component (340) into one body through cooperation with the movable nut (3520).

7. Scooter, characterized by: It comprises a base plate and two scooter brackets according to any one of claims 1 to 6; the scooter brackets are fixedly mounted on the base plate.

8. A scooter scene simulation method, characterized in that: The scooter bracket according to any one of claims 1 to 6 is used to simulate the scene; wherein: When sliding in a straight line, the supporting steering mechanism (20) contacts the road surface to provide supporting force; During lateral sliding, the steering function is completed by the supporting steering mechanism (20), and the supporting steering mechanism (20) and the sliding auxiliary mechanism (30) simultaneously contact the road surface to provide supporting force.

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