CN113212620B

CN113212620B - Electrodynamic balance swing car

Info

Publication number: CN113212620B
Application number: CN202110656624.9A
Authority: CN
Inventors: 钭子奇
Original assignee: Zhejiang Qunying Vehicles Co Ltd
Current assignee: Zhejiang Qunying Vehicles Co Ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-05-03
Anticipated expiration: 2041-06-11
Also published as: CN113212620A

Abstract

The invention relates to an electrodynamic balance swing car, which comprises a car body, wheels on the front side and the rear side of the car body and a steering mechanism, wherein the steering mechanism comprises a first support and a second support, the first support transversely penetrates through a first rotating shaft matched with a car body positioning hole, the first support is longitudinally and fixedly provided with a second rotating shaft, the second support is provided with a second shaft hole matched with the second rotating shaft, the second support can rotate around the second rotating shaft, the second support is connected to the two sides of the wheels, the second support far away from the wheels is provided with a first matching part, and the car body is provided with a second matching part matched with the first matching part to adjust the rotating angle of the wheels; the periphery of the first rotating shaft is provided with an elastic piece, the elastic piece is accommodated in the positioning hole and provided with a spiral part and two connecting ends, one of the connecting ends acts on the vehicle body, and the other connecting end acts on the first support. The invention aims to provide an electrodynamic balance swing car which is laterally ridden, safe and not limited by road conditions.

Description

Electrodynamic balance swing car

Technical Field

The invention relates to the technical field of electric mobility carts, in particular to an electric balance swing cart.

Background

Swing car, balance car and scooter are the trend motion product of the young people of new generation, and not only the outward appearance is fashionable, and small in size can arrange private car trunk in addition, carries into subway or bus etc. as having convenience and interesting vehicle concurrently, under the social prerequisite that current energy shortage, general block up, receives consumer's favor more and more.

The balance car controls the car body to move forwards and backwards through a dynamic balance principle, the electric balance swing car which is formed by pivoting two pedal seats is common in the market and comprises wheels, a hub motor and a lithium battery, when the car needs to turn, torsion is applied to the pedal seats through double feet, and the change of the car body posture is detected by utilizing a gyroscope and an acceleration sensor in the car body, so that the running speed and the advancing direction of the car body can be controlled at will, and the car body balance can be kept at the same time, a steering mechanism and the car body balance in the product design are controlled through electric control parts, the software and hardware are extremely complex, and the corresponding car body is high in selling price; in addition, the wheels of the swing car are arranged on two sides of the car body and are arranged perpendicular to the car body, so that a human body needs to stand facing the riding direction, and when the car body loses balance or encounters uneven road surfaces, the body is easy to tumble due to inertia, and safety accidents are caused.

The common scooter on the market generally comprises pedals, front wheels and rear wheels which are assembled at the front ends and the rear ends of the pedals, and a vertical pipe and a handle which are connected to the front wheels, and the common scooter is complicated in mechanical structural part, large in size and not beneficial to storage and carrying; moreover, the design of the product usually needs to twist a handlebar to drive a front wheel to steer, and only the front wheel is in charge of steering, so that the corresponding turning radius is larger, and the turning flexibility is poor.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide an electrodynamic balance swing car capable of riding in a side direction, being safe and free from road conditions, wherein the electrodynamic balance swing car simultaneously controls the turning and balance of a car body by manpower.

In order to achieve the purpose, the invention adopts the following technical scheme:

the electrodynamic balance swing car comprises a car body and wheels on the front side and the rear side of the car body, wherein at least one wheel is provided with a hub motor, a lithium battery and a controller are accommodated in the car body, and the hub motor is electrically connected with the lithium battery through the controller; a steering mechanism is connected between the vehicle body and the wheels, the steering mechanism comprises a first support and a second support, the first support is provided with a first shaft hole which is transversely penetrated, a first rotating shaft matched with the positioning hole of the vehicle body is rotatably arranged in the first shaft hole, the first support is fixedly provided with a second rotating shaft longitudinally, the second support is provided with a second shaft hole matched with the second rotating shaft, the second support can rotate around the second rotating shaft, the second support is connected to two sides of the wheels, the second support far away from the wheels is provided with a first matching part, and the vehicle body is provided with a second matching part matched with the first matching part to adjust the rotation angle of the wheels; the periphery of the first rotating shaft is provided with an elastic piece for driving the automobile body to restore balance, the elastic piece is accommodated in the automobile body positioning hole and provided with a spiral part and two connecting ends formed by extending and bending the spiral part, one of the connecting ends acts on the automobile body, and the other connecting end acts on the first support.

Preferably, one of the first matching part and the second matching part is configured as a groove or a through hole which is vertically arranged; and the other steering rod is formed to protrude from the surface of the vehicle body or the second bracket and extend into the groove or the through hole. The steering matching mode in the technical scheme has the characteristics of flexible structure, difficult loss and long service life in a rigid connection mode; meanwhile, the vehicle body torsion is applied to drive the wheels to deflect and turn towards the inner side of the vehicle body, so that the control is flexible, and the application range is wide.

Preferably, threaded holes are correspondingly formed in the wall surfaces of the grooves or the through holes on the left side and the right side along the direction perpendicular to the wall surfaces, adjusting screws penetrate through the threaded holes, and the adjusting screws are screwed into or out of the threaded holes so as to change the distance between the inner ends of the adjusting screws and the free ends of the steering rods, so that the rotation angles of the wheels on the front side and the rear side are consistent. In the technical scheme, the distance between the inner end of the adjusting screw and the free end of the steering rod is changed, so that the steering deviation of the front wheel and the rear wheel caused by vehicle body shaking can be stably eliminated, the straightness of the height of the front wheel and the height of the rear wheel are ensured, and the shaking stability during directional driving in the driving process is improved.

Preferably, the first bracket is fixed with a limiting piece, the limiting piece is sleeved on the periphery of the first rotating shaft, and at least part of the limiting piece is accommodated in the vehicle body positioning hole so as to limit the rotating angle of the vehicle body. The locating part among this technical scheme prescribes a limit to the biggest steering angle of automobile body, avoids falling the automobile body because the too big human unbalance in inclination, guarantees to ride process safety and comfort.

Preferably, the limiting member has at least one pair of wing portions protruding symmetrically along the radial direction of the first rotating shaft, and the distance between the outer ends of the wing portions is between the maximum outer diameter and the minimum inner diameter of the positioning hole of the vehicle body. In the technical scheme, a gap is reserved between the limiting piece and the positioning hole, and the positioning hole deflects by a certain angle and can be abutted against the wing part so as to limit the further rotation of the vehicle body; the wing parts are radially symmetrically and convexly arranged along the first rotating shaft and are respectively used for limiting the left and right limit steering angles of the vehicle body.

Preferably, the bottom side of the positioning hole of the vehicle body is recessed along the axial direction corresponding to the wing part to form a first avoidance opening for abutting against or fixing one connecting end of the elastic part to the vehicle body, and the limiting part is provided with a second avoidance opening for allowing the other connecting end of the elastic part to penetrate out of the second avoidance opening for abutting against or fixing the other connecting end of the elastic part to the first support. In the technical scheme, two connecting ends of the elastic part act on the vehicle body and the first support respectively, and when the vehicle body rotates vertically under the action of torsion, the elastic part is driven to deform; when the torque force is cancelled, the elastic piece automatically resets to drive the vehicle body to return to a horizontal state, and the stability is good and the sensitivity is high.

Preferably, the first avoidance port and the second avoidance port which are positioned at two ends of the length direction of the vehicle body are arranged symmetrically along the radial direction of the first rotating shaft. The elastic pieces at the front end and the rear end of the automobile body in the technical scheme are opposite in arrangement direction, and the static balance stability of the automobile body can be improved.

Preferably, the vehicle body comprises an upper shell and a bottom plate, the front end and the rear end of the upper shell are connected with wheels through a steering mechanism, and two mounting parts with downward openings and arranged in parallel are formed on the bottom side of the upper shell; the bottom plate covers and fits the installation department lower extreme and form the first cavity that is used for installing the lithium cell and be used for installing the second cavity of controller, the installation of second cavity top side is used for pedal speed governing button with higher speed. It should be noted that, in the initial stage of riding, a rider stands on the upper shell laterally, and steps on the speed-adjusting button with a foot, the switching signal start controller drives the in-wheel motor to start, and the in-wheel motor starts to accelerate gradually to a stable forward running direction according to the set running direction.

Preferably, the first rotating shaft and the first shaft hole and the second rotating shaft and the second shaft hole are rotatably connected through bearings. The technical scheme has smooth rotation and sensitive steering.

Preferably, fenders are fixedly arranged above the front and rear wheels.

The invention adopts the technical scheme and has the following beneficial effects: firstly, through the wheels arranged on the two sides of the vehicle body in parallel with the vehicle body, a rider straddles laterally according to the advancing direction, the riding speed and the balance of the human body are obviously improved, and when the vehicle body is powered off or encounters uneven road surfaces, the human body is not easy to tumble to generate safety accidents, but can adapt to various road conditions, so that the riding safety is ensured; the left and right small-angle change of the inclination angle of the vehicle body is controlled through footsteps, and the horizontal steering angle of the second support is further pushed to change so as to realize the steering of the vehicle body, compared with the steering controlled by a scooter handlebar, the scooter has the advantages of simple structure, convenience in operation and easiness in carrying, and the steering angles of the front wheel and the rear wheel can be simultaneously adjusted due to the fact that the steering mechanisms can be respectively arranged corresponding to the front wheel and the rear wheel, the rotating radius of the wheels is smaller, and the rotating flexibility is improved; its third, through the elastic component of locating first pivot periphery, one of elastic component link acts on the automobile body, and another acts on to first support to control the automobile body and resume to balanced state, design benefit, simple structure compares in traditional balance car, and this product design has cancelled electric control parts such as gyroscope, acceleration sensor, and the cost is showing and is reducing.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an electrodynamic balance swing car according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a electrodynamic balance swing car according to an embodiment of the present invention;

FIG. 3 is an exploded view of the vehicle body and steering mechanism according to the embodiment of the present invention;

fig. 4 is an exploded view of the vehicle body and the steering mechanism according to the second embodiment of the present invention;

FIG. 5 is an exploded schematic view of a vehicle body according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a limiting member according to an embodiment of the invention;

fig. 7 is a schematic structural diagram of an elastic member according to an embodiment of the present invention.

Detailed Description

In order to make the technical features, objects and effects of the present invention more clearly understood, a detailed description of embodiments of the present invention will be given below with reference to the accompanying drawings.

In the description of the present application, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "transverse," "longitudinal," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present invention.

It should be noted that the terms "first" and "second" are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 7, the electric balance swing car provided by the present application includes a car body 1, wheels 2 at front and rear sides of the car body, a driving mechanism for driving the wheels to move forward, and a steering mechanism 3 for connecting the car body 1 and the wheels 2.

The automobile body 1 includes upper shell 11 and bottom plate 12, upper shell 11 downside an organic whole sets up two installation departments of opening down, upper shell 11 surpasss the front and back both ends of installation department and is equipped with the location seat, the location seat has seted up locating hole 111 along automobile body length direction, bottom plate 12 covers and fits the installation department lower extreme and form first cavity 113 and second cavity 114. It should be noted that the first chamber and the second chamber may be in communication. In a preferred embodiment, the bottom side of the upper shell 11 is uniformly distributed with honeycomb-shaped reinforcing ribs 115 to enhance the load-bearing capacity of the upper shell 11 and maintain the mechanical structural member to be effective continuously.

The driving mechanism comprises a hub motor arranged on the wheel 2, a lithium battery accommodated in the first cavity 113 and a controller accommodated in the second cavity 114, the hub motor is electrically connected with the lithium battery through the controller, and a speed regulating button 116 electrically connected with the controller and used for pedal acceleration is further arranged on the top side of the second cavity 114. It should be noted that, in the initial stage of riding, a rider stands on the upper shell laterally, and steps on the speed-adjusting button with a foot, the switching signal start controller drives the in-wheel motor to start, and the in-wheel motor starts to accelerate gradually to a stable forward running direction according to the set running direction. The control circuit is simple and efficient, is universal with the electric moped or the two-wheeled electric vehicle, has high cost performance and is very convenient to use. Through automobile body both sides and automobile body parallel arrangement's wheel in this embodiment, the passerby straddles according to the direction of advance side direction, compares traditional human body towards the balance car that the direction of riding stood, and it all has showing the promotion at riding speed and human balance nature, and when the automobile body outage or when encountering uneven road surface, the human body is difficult for falling and wrestling the production incident, but can adapt to various road conditions, ensures the safety of riding.

The steering mechanism comprises a first support 31 and a second support 32, the first support 31 is provided with a first shaft hole which is transversely penetrated, a first rotating shaft 33 which is matched with a vehicle body positioning hole is rotatably arranged in the first shaft hole, a second rotating shaft 34 is fixedly arranged on the first support 31 in the longitudinal direction, the second support 32 is provided with a second shaft hole which is matched with the second rotating shaft 34, the second support 32 can rotate around the second rotating shaft 34, one side of the second support 32 is constructed to be a clamping part 321 which is formed by extending from the wall surface of the second shaft hole to two sides of a wheel, the clamping part 321 is provided with a notch with a downward opening and is matched with a wheel shaft, a first matching part 322 is arranged on the second support 32 far away from the wheel 2, and a second matching part 112 which is matched with the first matching part 322 to adjust the rotation angle of the wheel 2 is arranged on the positioning seat part of the vehicle body 1. In this embodiment, through the small-angle change about step control automobile body inclination, thereby promote the horizontal angle of turning to of second support change and realize the automobile body and turn to, compare in scooter handlebar control and turn to, have simple structure, the advantage convenient and easily carried of operation, owing to can correspond the front and back wheel and set up steering mechanism respectively, can adjust front and back wheel steering angle simultaneously again, the wheel turning radius is littleer, rotates the flexibility and promotes. In a preferred embodiment, the first rotating shaft 33 and the first shaft hole and the second rotating shaft 34 and the second shaft hole are rotatably connected through a bearing 35, so that the rotation is smooth and the steering is sensitive. In other embodiments, the outer ends of the first and second shafts extend radially to form a limit portion, and the first shaft 33 and the first shaft hole and the second shaft 34 and the second shaft hole are provided with spacers.

In some embodiments, one of the first and second mating portions 322 and 112 is configured as a vertically-opened groove or through hole; and the other steering rod is formed to protrude from the surface of the vehicle body or the second bracket and extend into the groove or the through hole. Preferably, the free end of the steering rod is provided with a left half-arc block and a right half-arc block which are outwards protruded corresponding to the rotation direction of the vehicle body, and the bottom ends of the left half-arc block and the right half-arc block are in arc transition. The steering matching mode in the embodiment has the characteristics of flexible structure, difficult loss and long service life in a rigid connection mode; meanwhile, the vehicle body torsion is applied to drive the wheels to deflect and turn towards the inner side of the vehicle body, so that the control is flexible, and the application range is wide.

In a preferred embodiment, the wall surfaces of the grooves or the through holes on the left side and the right side are correspondingly provided with threaded holes along the direction vertical to the wall surfaces, the threaded holes are internally provided with adjusting screws in a penetrating manner, and the adjusting screws are screwed into or out of the threaded holes so as to change the distance between the inner ends of the adjusting screws and the free ends of the steering rods, so that the rotation angles of the front wheels and the rear wheels are consistent. In the embodiment, the distance between the inner end of the adjusting screw and the free end of the steering rod is changed, so that the steering deviation of the front wheel and the rear wheel caused by shaking of the vehicle body can be stably eliminated, the straightness of the height of the front wheel and the height of the rear wheel are ensured, and the shaking stability during directional driving in the driving process is improved.

This application electrodynamic balance swing car is still including the elastic component 5 that the drive automobile body resumes balance, elastic component 5 locates first pivot 33 periphery and accepts in locating hole 111, elastic component 5 has spiral portion 51 and follows the first link 52 of first pivot 33 radial extension by spiral portion 51 to and follow the second link 53 of first pivot 33 axial extension, first link 52 butt perhaps is fixed to locating hole 111 inner wall, second link 53 butt perhaps is fixed to first support 31. According to the technical scheme, the vehicle body is controlled to steer and balance through manpower, electric control parts such as a gyroscope, an acceleration sensor and the like arranged in a pedal seat of a traditional balance vehicle are omitted, and the cost is obviously reduced. The elastic part is specifically a torsion spring, and the automobile body is reset and driven to be parallel through the deformation of the torsion spring, so that the stability and the sensitivity are better. In a preferred embodiment, the torsion springs at the front end and the rear end of the vehicle body are arranged in opposite directions, so that the static balance stability of the vehicle body can be improved. It should be noted that the elastic member may also be a tendon.

This application electrodynamic balance swing car is still including the locating part 4 of restriction automobile body rotation angle, first pivot 33 periphery and fixed to first support 31 are located to the locating part 4 cover, and is concrete, encircle a plurality of first mounting holes 43 have evenly been seted up in the locating part shaft hole, first support 31 is equipped with and carries out threaded connection's second mounting hole with first mounting hole 43 matching. The limiting member 4 is at least partially accommodated in the positioning hole 111 to limit the rotation angle of the vehicle body 1.

In some embodiments, the position-limiting element 4 has at least one pair of fins 42 protruding symmetrically along the radial direction of the first rotation axis 33, and the distance between the outer ends of the fins 42 is between the maximum outer diameter and the minimum inner diameter of the positioning hole 111. A gap is reserved between the limiting part and the positioning hole in the embodiment, the positioning hole deflects for a certain angle and can be abutted against the wing part to limit the further rotation of the bicycle body, the phenomenon that the bicycle body falls off due to the fact that the human body loses balance due to an overlarge inclination angle is avoided, and the safety and comfort in the riding process are guaranteed.

Specifically, the bottom side of the positioning hole of the vehicle body is recessed along the axial direction corresponding to the fin 42 to form a first avoiding opening for one connecting end of the elastic element 5 to abut against or be fixed to the vehicle body, and the limiting element 5 is provided with a second avoiding opening 44 for the other connecting end of the elastic element 4 to penetrate out to abut against or be fixed to the first bracket. In a preferred embodiment, the first avoiding opening and the second avoiding opening 44 at the two ends of the vehicle body in the length direction are symmetrically arranged along the radial direction of the first rotating shaft 33, and the elastic members 5 correspondingly arranged at the front end and the rear end of the vehicle body are opposite in arrangement direction, so that the static balance stability of the vehicle body can be improved.

A mudguard 21 is also arranged above the wheel 2.

According to the electrodynamic balance swing car, the wheels 2 are distributed on two sides of the car body 1 and are arranged in parallel with the car body 1, a rider stands on the car body 1 laterally, and the horizontal steering angle of the wheels 2 driven by the second support 32 is changed by applying left and right torques of the car body 1, so that the advancing direction of the car body is adjusted; meanwhile, the torsion spring deforms in the torsion process of the vehicle body, and then the torsion spring recovers deformation to drive the vehicle body to return to a balance state.

The bicycle has the main advantages that the body stands laterally, the riding speed and the balance of the human body are obviously improved, and when the bicycle body is powered off or encounters uneven road surfaces, the human body is not easy to tumble to generate safety accidents, but can adapt to various road conditions, so that the riding safety is ensured.

The second main advantage is that the manpower can control the steering and balance of the vehicle body at the same time, on one hand, the control is simple and the operation is convenient; on the other hand, compared with the electric balance car, complicated electric control software and hardware are omitted, the cost is saved, and the cost performance is improved.

The steering mechanism is simple in structure, the scooter body is small and exquisite and convenient to operate, mechanical structural parts are greatly simplified compared with the traditional electric scooter, and the scooter can be completely replaced for walking instead of traveling.

The balance piece is arranged to drive the bicycle body to return to the horizontal state, so that the riding is stable; the limiting part limits the limit rotation angle of the bicycle body, so that the bicycle body is prevented from falling due to the fact that the human body loses balance due to an overlarge inclination angle, and the riding process is safe and comfortable.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The electrodynamic balance swing car comprises a car body (1) and wheels (2) on the front side and the rear side of the car body, and is characterized in that at least one wheel is provided with a hub motor, a lithium battery and a controller are accommodated in the car body, and the hub motor is electrically connected with the lithium battery through the controller;

a steering mechanism (3) is connected between the vehicle body and the wheels, the steering mechanism comprises a first bracket (31) and a second bracket (32), the first bracket (31) is provided with a first shaft hole which is transversely penetrated, a first rotating shaft (33) which is matched with the positioning hole of the vehicle body is rotatably arranged in the first shaft hole, a second rotating shaft (34) is fixedly arranged in the first bracket (31) in the longitudinal direction, the second bracket (32) is provided with a second shaft hole matched with the second rotating shaft (34), the second bracket (32) can rotate around a second rotating shaft (34), the second bracket (32) is connected to two sides of the wheel (2), a first matching part (322) is arranged on the second bracket (32) far away from the wheel (2), a second matching part (112) which is matched with the first matching part to adjust the rotating angle of the wheel (2) is arranged on the vehicle body (1);

the periphery of the first rotating shaft (33) is provided with an elastic part (5) for driving the car body (1) to restore balance, the elastic part (5) is accommodated in the car body positioning hole and is provided with a spiral part (51) and two connecting ends formed by extending and bending the spiral part, one of the connecting ends acts on the car body, and the other connecting end acts on the first support.

2. The electrodynamic balance swing car of claim 1, wherein one of the first (322) and second (112) engagement portions is configured as a vertically open groove or through-hole; and the other steering rod is formed to protrude out of the surface of the vehicle body (1) or the second bracket (32) and extend into the groove or the through hole.

3. The electrodynamic balance swing car of claim 2, wherein the recess or through-hole wall of the left and right sides is correspondingly provided with a threaded hole along a vertical wall direction, an adjusting screw is arranged in the threaded hole in a penetrating manner, and the adjusting screw is screwed into or out of the threaded hole to change a distance between an inner end of the adjusting screw and a free end of the steering rod, so that the rotation angles of the front and rear wheels (2) are consistent.

4. The electrodynamic balance swing car according to claim 1, wherein the first bracket (31) is fixed with a limiting member (4), and the limiting member (4) is sleeved on the outer periphery of the first rotating shaft (33) and at least partially accommodated in a car body positioning hole to limit the rotation angle of the car body (1).

5. The electrodynamic balance swing car of claim 4, wherein the limiter (4) has at least one pair of wing portions (42) protruding symmetrically in a radial direction of the first rotating shaft (33), and a distance between outer ends of the wing portions (42) is between a maximum outer diameter and a minimum inner diameter of the positioning hole of the car body.

6. The electrodynamic balance swing car according to claim 5, wherein the corresponding wing part (42) at the bottom side of the positioning hole of the car body is recessed in the axial direction to form a first avoidance opening for one connecting end of the elastic element (5) to abut against or be fixed to the car body (1), and the limiting element (4) is provided with a second avoidance opening (44) for the other connecting end of the elastic element (5) to pass through to abut against or be fixed to the first bracket (31).

7. The electrodynamic balance swing car according to claim 6, wherein the first and second avoidance ports (44) at both ends of the car body (1) in the length direction are radially and symmetrically arranged along the first rotation shaft (33).

8. Electrodynamic balance swing car according to claim 1, characterized in that the car body (1) comprises an upper shell (11) and a floor (12),

the front end and the rear end of the upper shell (11) are connected with wheels (2) through a steering mechanism (3), and two mounting parts with downward openings and arranged in parallel are formed on the bottom side of the upper shell;

the bottom plate (12) covers the lower end of the mounting part to form a first chamber (113) for mounting a lithium battery and a second chamber (114) for mounting a controller, and a speed regulating button (116) for pedal acceleration is mounted on the top side of the second chamber (114).

9. The electrodynamic balance swing car of claim 1, wherein the rotational connections between the first shaft (33) and the first shaft bore and between the second shaft (34) and the second shaft bore are via bearings (35).

10. The electrodynamic balance swing car of claim 1, wherein fenders (21) are secured above the front and rear wheels (2).