CN111846073B

CN111846073B - Balance car

Info

Publication number: CN111846073B
Application number: CN202010825418.1A
Authority: CN
Inventors: 白士刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2024-09-24
Anticipated expiration: 2040-08-17
Also published as: CN111846073A

Abstract

The utility model provides a balance car, includes pedal seat and control lever, the lower part of control lever is equipped with the steering spindle that can swing and rotate thereupon, steering spindle and pedal seat rotatable coupling still include the driving medium and be used for controlling the mainboard box of mainboard installation, the driving medium with the steering spindle is connected in order to rotate thereupon, the mainboard box articulates the setting in the cavity of pedal seat, and is located the rotation interference range of driving medium, works as the driving medium takes place to rotate, the mainboard box takes place rotation or swing by its interference. The brake elbow of the Hall assembly is eliminated by a mechanical signal transmission mode, so that the diversity requirement and cost of the control main board are reduced.

Description

Balance car

Technical Field

The invention relates to the field of balance vehicles, in particular to a balance vehicle.

Background

Balance car, also called somatosensory car, thinking car or shooting car, etc. There are mainly one wheel and two wheels in the market, the operation principle is mainly based on a basic principle called dynamic stability (Dynamic Stabilization), the change of the posture of the vehicle body is detected by using a gyroscope and an acceleration sensor in the vehicle body, and a servo control system is used for accurately driving a motor to perform corresponding adjustment so as to keep the balance of the system.

The balance car in the prior art comprises a pedal seat, a control rod and a Hall assembly, wherein a steering shaft (generally left-right swing) capable of swinging along with the steering shaft is arranged at the lower part of the control rod, the steering shaft is rotatably connected with the pedal seat, when the balance car needs to turn, a user standing on the pedal seat adjusts the steering rod to swing towards the corresponding direction, the control rod drives the steering shaft to rotate, a signal for rotating the steering shaft is acquired by the Hall assembly and is fed back to a control main board, the control main board sends out the signal to a hub of the balance car to perform corresponding steering action, and the control main board is subjected to the use of the Hall assembly, so that the control main board cannot be used on different balance cars (the balance car control main board without the control rod) in a compatible mode (the balance car control main board without the control rod has no Hall assembly), and particularly, the control main board with the Hall assembly has high cost, and the market competitiveness of the balance car with the control rod is severely restricted.

Disclosure of Invention

Aiming at the technical problems, the main purpose of the invention is to provide the balance car, which gets rid of the brake elbow (without Hall steering) of the Hall assembly in a mechanical signal transmission mode, so that the control main board of the balance car without the control rod can be applied to the balance car with the control rod, the control main board with low cost is used for replacing the control function of the main board with high cost, the performance is stable, the cost is greatly reduced, and the market competitiveness of the product is improved.

In order to achieve the above purpose, the invention provides a balance car, which comprises a pedal seat and a control rod, wherein the lower part of the control rod is provided with a steering shaft capable of swinging and rotating along with the control rod, the steering shaft is rotatably connected with the pedal seat,

The main board box is hinged in the cavity of the pedal seat and is positioned in the rotation interference range of the transmission piece, and when the transmission piece rotates, the main board box rotates or swings due to interference of the transmission piece.

Preferably, the transmission member is hinged to the main board box;

or one end of the transmission piece is provided with a U-shaped groove with an outward opening, and the main board box is provided with a transmission platform which can extend into the U-shaped groove;

or, the main board box is located at the side of the steering shaft, the transmission piece is fixed at the steering shaft, and the transmission piece is suspended at the upstream of the starting position of the main board box in rotation or swing.

Preferably, the transmission member is a bar-shaped plate structure, and the end part of the transmission member is provided with a bending part extending outwards perpendicularly.

Preferably, the balance car further comprises a hub and a support shaft, wherein the hub is mounted at the end part of the support shaft, and the support shaft extends along the length direction of the pedal seat;

the main board box is hinged to the shaft lever of the supporting shaft.

Preferably, the device further comprises an elastic piece, wherein the elastic piece is arranged in the cavity of the pedal seat, one end of the elastic piece is abutted against the inner wall surface of the cavity of the pedal seat, and the other end of the elastic piece is abutted against the end surface of the main board box.

Preferably, the pedal seat also comprises an elastic piece and a bearing platform, wherein the bearing platform is fixed in the cavity of the pedal seat and forms a reset space with the main board box;

The elastic piece is arranged in the reset space, one end of the elastic piece is abutted to the bearing platform, and the other end of the elastic piece is abutted to the main board box.

Preferably, the bearing platform is fixedly connected to a supporting shaft used for installing a hub in a cavity of the pedal seat, the main board box is provided with an installation gap for the supporting shaft to penetrate through, a bearing seat is arranged in the installation gap, the supporting shaft is rotatably arranged on the bearing seat in a penetrating manner, and the bearing seat is fixedly connected with the main board box;

The main board box further comprises a cover plate covering the mounting notch, the bearing platform is located in the mounting notch and located below the cover plate, the lower end of the elastic piece is abutted to the upper end face of the bearing platform, and the upper end of the elastic piece is abutted to the inner end face of the cover plate.

Preferably, the two bearing platforms are respectively arranged at the left side and the right side of the bearing seat, each bearing platform is provided with two elastic pieces, and the two elastic pieces are respectively positioned at the front side and the rear side of the supporting shaft.

Preferably, the cover plate is provided with an installation groove for accommodating the supporting shaft and protruding outwards, an installation hole for exposing the bearing seat is formed in the middle of the installation groove, and the bearing seat is fixedly connected with the cover plate.

Preferably, the two main board boxes are respectively arranged at two sides of the steering shaft, the middle part of the transmission piece is fixed at the steering shaft, and two free ends of the transmission piece extend to the upper parts of the two main board boxes respectively.

Preferably, the foot rest comprises an upper shell and a lower shell which are mutually buckled and form a mounting cavity:

the shaft lever of the supporting shaft extends along the length direction of the pedal seat and is fixedly connected with the upper shell.

Preferably, a mounting seat is supported and arranged between the shaft rod of the supporting shaft and the inner end surface of the upper shell, and mounting bolts are respectively arranged to sequentially penetrate through the shaft rod of the supporting shaft and the mounting seat below the shaft rod of the supporting shaft so as to realize the fixed connection of the shaft rod of the supporting shaft and the mounting seat;

Preferably, the upper end surface of the mounting seat is provided with a groove body which is concave downwards and can adapt to the shaft lever clamping of the supporting shaft.

Preferably, the wheel axle of the hub extends inwardly in a horizontal direction to form the support axle.

Preferably, a wheel shaft of the hub is inserted into the outer end of the supporting shaft, and a fixing bolt is arranged to pass through the wheel shaft and the supporting shaft in the radial direction and then fixedly connect the wheel shaft and the supporting shaft.

Preferably, the control main board further comprises a power supply component for supplying power to the control main board, and the power supply component is arranged in the battery box;

the battery box is installed the last casing, the middle part of battery box is equipped with the confession the breach that the back shaft passed.

Preferably, the device further comprises a reset assembly, which comprises an elastic piece and a supporting base;

The support base is fixedly connected with the pedal seat;

the support base is provided with a shaft mounting groove and an elastic support groove, and the steering shaft is rotatably accommodated in the shaft mounting groove;

the elastic supporting groove is perpendicular to the length direction of the shaft mounting groove, and the bottom surface of the middle part of the elastic supporting groove is lower than the bottom surfaces of the grooves at the two ends;

The elastic piece is accommodated in the elastic supporting groove in an adaptive manner, and vertically penetrates through the shaft body of the steering shaft or is accommodated in the elastic accommodating groove at the lower part of the steering shaft.

A balance car comprises a pedal seat, a control rod, a steering shaft, a transmission piece, a main board box for controlling the installation of a main board, a hub, a supporting shaft, a bearing seat, an elastic piece and a bearing platform;

the lower part of the control rod is provided with a steering shaft capable of swinging to rotate along with the control rod, the steering shaft is rotatably connected with the pedal seat, and the transmission piece is connected with the steering shaft to rotate along with the steering shaft; the support shaft extends along the length direction of the pedal seat and is arranged in the pedal seat, and two hubs are respectively provided with two ends of the support shaft;

The steering shaft extends along the length direction perpendicular to the supporting shaft, the main board box is hinged to a rod body of the supporting shaft, the transmission piece is fixed at one end of the steering shaft, and the free end of the transmission piece is suspended above the main board box;

The bearing seat is fixedly connected with the main board box, and the supporting shaft is rotatably arranged on the bearing seat in a penetrating manner; the bearing platform is fixed on the supporting shaft, the bearing platform and the main board box form a reset space, the elastic piece is arranged in the reset space, one end of the elastic piece is abutted to the bearing platform, and the other end of the elastic piece is abutted to the main board box.

Preferably, the middle part of the main board box is hinged with a rod body arranged on the supporting shaft through the bearing seat, and the length direction of the main board box is parallel to the length extending direction of the steering shaft;

The number of the main board boxes is two, the middle part of the transmission piece is fixed at one end of the steering shaft, the two main board boxes are respectively positioned at two sides of the steering shaft, and the two free ends of the transmission piece are respectively positioned above the two main board boxes.

Preferably, the main board box is provided with a mounting notch through which the supporting shaft passes, and the bearing seat is positioned in the mounting notch;

The mainboard box in this technical scheme for install the control mainboard of balance car, control mainboard integration has the gyroscope, and when the balanced state of mainboard box was broken by external force, the gyroscope perceived its signal of change direction to give the control module on the control mainboard with this signal transfer, control module sent the instruction to the motor of control wheel hub motion according to the signal, the motor control wheel hub who receives the signal makes corresponding motion, in order to realize the steering adjustment of balance car.

The main board box in the embodiment is hinged in the inner cavity of the pedal seat, and the main board box maintains a balanced state in the normal running process of the balance car; when a user standing on the pedal seat needs to change the travelling direction, the hand-operated control rod swings to one side of the travelling direction, the steering shaft and the transmission piece connected with the steering shaft rotate along with the control rod in the corresponding direction, and the rotation process of the transmission piece can interfere with the main board box in the rotation interference range of the transmission piece, wherein the interference can be mechanical collision under the condition that the steering shaft and the transmission piece are not in direct connection, or traction and traction interference under the condition that the steering shaft and the transmission piece are in connection; and the like, and those skilled in the art should not be aware of the specific implementation with the same or equivalent technical effects, and should be considered to fall within the protection scope of the present invention.

After being interfered, the hinged main board box rotates or swings around the hinge shaft correspondingly along with the rotation direction of the transmission part, and a direction change signal generated by the rotation or swinging is sensed by a gyroscope on a control main board in the main board box 5, the gyroscope transmits the signal to a control module on the control main board, the control module sends an instruction to a motor for controlling the movement of the wheel hub according to the signal, and the motor for receiving the signal controls the wheel hub to make corresponding movement so as to realize steering adjustment of the balance car.

In addition, compared with the prior art, the balance car with the control rod in the technical scheme reduces fittings on the frame structure, and a supporting shaft is connected with a hub (hub motor) to serve as the frame in the middle, so that the weight and cost of the whole car are reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of one embodiment of a balance car of the present invention;

FIG. 2 is a schematic diagram illustrating an internal structure of an embodiment of a balance car according to the present invention;

FIG. 3 is a schematic view of an embodiment of the assembly of the main board box and the support bar of the present invention;

FIG. 4 is a side view of one embodiment of the main panel box and support bar assembly of the present invention;

FIG. 5 is a schematic view of the internal structure of an embodiment of the balance car of the present invention (from the bottom up);

FIG. 6 is a schematic view of an embodiment of the present invention showing the positional relationship between the main plate case and the transmission member

FIG. 7 is a schematic view of another embodiment of the present invention showing the positional mounting relationship of the main plate case and the transmission member;

FIG. 8 is a schematic diagram of an exploded view of an embodiment of a reset structure according to the present invention;

Fig. 9 is a schematic structural view of another embodiment of the steering shaft and elastic member of the present invention.

Reference numerals illustrate:

A footstand 1, an upper housing 101;

A control lever 2; a steering shaft 3, an elastic accommodation groove 31; a transmission 4,U type groove 41;

the main board box 5, the mounting notch 50, the cover plate 51, the mounting groove 52, the mounting hole 53 and the transmission platform 54;

The device comprises a hub 6, a supporting shaft 7, an elastic piece 8, a bearing platform 9, a resetting space 00, a bearing seat 10, a mounting seat 11, a battery box 12 and a notch 121;

a return assembly 13, an elastic member 131, a support base 132, a shaft mounting groove 1321, and an elastic support groove 1322; a bolt 14 and a hinge seat 15 are installed.

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The present invention is further described below with reference to fig. 1-7 and related embodiments.

The balance car comprises a pedal seat 1 and a control rod 2, wherein a steering shaft 3 capable of swinging and rotating along with the control rod 2 is arranged at the lower part of the control rod 2, and the steering shaft 3 is rotatably connected with the pedal seat 1;

The bicycle steering device further comprises a transmission piece 4 and a main board box 5 for controlling the installation of a main board, wherein the transmission piece 4 is connected with the steering shaft 3 so as to rotate along with the steering shaft, the main board box 5 is hinged in a cavity of the pedal seat 1 and is positioned in a rotation interference range of the transmission piece 4, and when the transmission piece 4 rotates, the main board box 5 is interfered by the transmission piece to rotate or swing along with the transmission piece.

The mainboard box 5 in this technical scheme for install the control mainboard of balance car, control mainboard integration has the gyroscope, and when the balanced state of mainboard box 5 was broken by external force, the gyroscope perceived its signal of change direction to give the control module on the control mainboard with this signal transfer, control module sends the instruction to the motor of control wheel hub motion according to the signal, and the motor control wheel hub who receives the signal makes corresponding motion, in order to realize the steering adjustment of balance car.

The main board box 5 in the embodiment is hinged in the inner cavity of the foot rest 1, and the main board box 5 maintains a balanced state in the normal running process of the balance car; when a user standing on the foot rest 1 needs to change the travelling direction, the hand-operated control rod 2 swings to one side of the travelling direction, the steering shaft 3 and the transmission piece 4 connected with the steering shaft 2 rotate along with the control rod 2 in the corresponding direction, and the rotation process of the transmission piece 4 can interfere with the main board box 5 in the rotation interference range of the transmission piece 4, wherein the interference can be mechanical collision under the condition that the two parts are not in direct connection, or traction and traction interference under the condition that the two parts are in connection; and the like, and those skilled in the art should not be aware of the specific implementation with the same or equivalent technical effects, and should be considered to fall within the protection scope of the present invention.

After being interfered, the hinged main board box 5 rotates or swings around the hinge shaft correspondingly along with the rotation direction of the transmission part 4, a direction change signal generated by the rotation or swinging is sensed by a gyroscope on a control main board in the main board box 5, the gyroscope transmits the signal to a control module on the control main board, the control module sends an instruction to a motor for controlling the movement of the wheel hub according to the signal, and the motor for receiving the signal controls the wheel hub to make corresponding movement so as to realize steering adjustment of the balance car.

For a specific implementation structure for mechanically transmitting a motion signal between the transmission member 4 and the main board box 5, there are various preferred embodiments as follows:

The first embodiment is: the transmission member 4 is hinged to the main board box 5, in this embodiment, the transmission member 4 has a direct connection relationship with the main board box 5, and when the transmission member 4 is rotated by the control lever 2, the main board box 5 rotates or swings in the same direction with the hinge shaft as a pivot. Because the transmission piece 4 and the main board box 5 have direct hinging relation, the difference of the rotation directions of the transmission piece 4 can provide power sources for the main board box 5 to move around the hinging shaft in two opposite directions, and the device can adapt to the control main boards of balance cars of different styles (only one control main board of some styles can realize the adjustment of the left and right movement directions, and two control main boards of some styles need to respectively control the adjustment of the left and right movement directions), thereby being convenient for the mass production of manufacturers.

The specific hinge structure may be, as shown in fig. 6, that the main board box 5 is provided with a hinge seat 15, the hinge seat 15 is provided with a U-shaped hinge groove, one end of the transmission member 4 is inserted into the U-shaped hinge groove, and a hinge shaft is provided to hinge the transmission member 4 and the U-shaped hinge groove after passing through the two.

The second embodiment is: one end of the transmission member 4 is provided with a U-shaped groove 41 with an outward opening, the main board box 5 is provided with a transmission platform 54 which can extend into the U-shaped groove 41, as shown in fig. 7, when in a balanced state in this embodiment, the transmission platform 54 is suspended in the middle of the U-shaped groove 41, and when the transmission member 4 in the figure moves clockwise, the lower arm of the U-shaped groove 41 provides an upward tangential force for the rotation of the main board box 5; when the transmission member 4 moves anticlockwise, the lower arm of the U-shaped groove 41 provides a downward tangential force for the rotation of the main board box 5, i.e. one main board box can realize the adjustment of the balance car in at least two movement directions. In this embodiment, the transmission member 4 and the main board box 5 achieve mechanical collision without direct connection through a specific structure, and can provide power sources for the main board box 5 to move around the hinge shaft in opposite directions when the rotation directions of the transmission member 4 are different, so that the device can adapt to control main boards of balance cars of different styles (only one control main board of some styles can achieve adjustment of the left and right movement directions, and two control main boards of some styles need to respectively control adjustment of the left and right movement directions), and is convenient for mass production of manufacturers.

The third embodiment is: as shown in fig. 4, the main board box 5 is located at the side of the steering shaft 3, the transmission member 4 is fixed at the steering shaft 3, the transmission member 4 is suspended at the upstream of the starting position of rotation or swing of the main board box 5, the transmission member 4 rotates and continues forward when rotating near the main board box 5, so that an impetus is provided for rotation or swing of the main board box 5, and in this embodiment, the transmission member 4 and the main board box 5 have no direct connection relationship, so that the degree of freedom constraint caused by direct connection (such as hinging) is avoided, and the whole adjustment of the balance car can be more flexible and convenient.

Preferably, the transmission member 4 is preferably in a strip-shaped plate structure, and the end part of the transmission member is provided with a bending part extending outwards perpendicularly, so that the structure is simple, and the bending part can better provide an acting point when the transmission member and the bending part interfere with each other.

The main board box 5 in the technical scheme is hinged in the inner cavity of the balance car foot rest 1, and the hinged position is not particularly limited, so long as the installed position of the main board box 5 is matched with the transmission piece 4, the main board box 5 can swing or rotate by means of acting force generated by the rotation of the transmission piece 4 to the main board box. Specifically, the main board box 5 may be hinged to the upper cover of the pedal seat 1, or may be the lower cover of the pedal seat 1.

Similar to all balance cars, the balance car of the technical scheme also comprises a wheel hub 6 and a supporting shaft 7, wherein the wheel hub 6 is arranged at the end part of the supporting shaft 7, the supporting shaft 7 is arranged in an extending way along the length direction of the foot rest 1, and the wheel hub 6 is driven by a motor;

The hinge position of the main board box 5 is preferably a shaft lever arranged on the supporting shaft 7 in a hinged manner, namely, the supporting shaft 7 plays a role of connecting the hub 6 and also serves as a hinge shaft of the main board box 5, so that the assembly structure and the space are greatly saved.

The balance car of the present embodiment is further provided with an elastic member 8, so that the main board box 5 can quickly return to the balanced state, and the main board box 5 in the balanced state can be maintained more stable based on the restoring force of the elastic member 8 in the compressed state.

The elastic member 8 may be disposed in the cavity of the foothold 1, and one end of the elastic member 8 abuts against the inner wall surface of the cavity of the foothold 1, and the other end abuts against the end surface of the main board box 5; in the balanced state, the compressed elastic piece 8 continuously acts the restoring force on the inner wall surfaces of the cavities of the main board box 5 and the pedal seat 1, so that the main board box 5 is kept in a stable state; when the main board box 5 rotates or swings in a certain direction, the elastic piece 8 is stretched or further compressed to generate a restoring force for promoting the main board box 5 to return to the balance position, so that the installation is convenient.

In another embodiment, a receiving platform 9 is further provided and is fixed in the cavity of the foot rest 1, the receiving platform 9 may be directly fixed on the inner wall surface of the cavity of the foot rest 1, or may be fixed on a part in the cavity of the foot rest 1, such as the supporting shaft 7, and specifically, the receiving platform 9 and the main board box 5 form a reset space 00;

The elastic piece 8 is arranged in the resetting space 00, one end of the elastic piece is abutted to the receiving platform 9, the other end of the elastic piece is abutted to the main board box 5, and the action principle is the same as that of the main board box 5, but the embodiment isolates the elastic piece 8 from being in direct contact with the shell of the pedal seat 1, so that the state of the elastic piece 8 is prevented from being misled when a user stands on the pedal seat 1 or encounters an uneven road, the accurate feedback of the state of the elastic piece 8 and the main board box 5 is ensured, and the usability is improved.

Preferably, the bearing platform 9 is fixedly connected with the supporting shaft 7, so that the contact between the elastic piece 8 and the pedal seat 1 is completely isolated, and the best effect is achieved.

Preferably, the main board box 5 is provided with a mounting notch 50 through which the supporting shaft 7 passes, a bearing seat 10 is arranged in the mounting notch 50, the supporting shaft 7 is rotatably arranged on the bearing seat 10 in a penetrating manner, and the bearing seat 10 is fixedly connected with the main board box 5;

The main board box 5 further comprises a cover plate 51 covering the mounting notch 50, the receiving platform 9 is located in the mounting notch 50 and below the cover plate 51, the lower end of the elastic piece 8 is abutted to the upper end face of the receiving platform 9, and the upper end is abutted to the inner end face of the cover plate 51.

In this embodiment, the bearing seat 10 fixedly connected with the main board box 5 is provided, on one hand, to ensure smooth reciprocating rotation of the main board box 5 around the supporting shaft 7, and on the other hand, to play a role in positioning, so as to avoid relative movement of the supporting shaft 7 and the main board box 5 along the length direction thereof.

The main board box 5 is provided with the mounting notch 50, so that the contact area is increased, the friction force between the main board box 5 and the supporting shaft 7 is increased, the stability of the main board box 5 in a balanced state is ensured, and the main board box is not easy to shake.

Preferably, the two receiving platforms 9 are respectively disposed on the left and right sides of the bearing seat 10, each receiving platform 9 is provided with two elastic members 8, and the two elastic members 8 are respectively disposed on the front and rear sides of the support shaft 7, so that stability is better.

Preferably, the cover plate 51 is provided with an installation groove 52 which accommodates the support shaft 7 and protrudes outwards, an installation hole 53 which exposes the bearing seat 10 is formed in the middle of the installation groove 52, the bearing seat 10 is fixedly connected with the cover plate 51, the contact area is increased, the friction force between the main board box 5 and the support shaft 7 is increased, the stability of the main board box 5 in a balanced state is ensured, and the main board box 5 is not easy to shake.

Preferably, two main board boxes 5 are respectively arranged at two sides of the steering shaft 3, the middle part of the transmission member 4 is fixed at the steering shaft 3, and two free ends thereof respectively extend to the upper parts of the two main board boxes 5, and respectively control the adjustment of the left-right movement direction.

The foot rest 1 of the balance car in this embodiment includes an upper housing 101 and a lower housing that are fastened to each other and form an installation cavity:

The shaft rod of the supporting shaft 7 extends along the length direction of the pedal seat 1 and is fixedly connected with the upper housing 101, and the outer end surface of the pedal seat 1 is the place where the user stands.

Further, in order to improve the stability of the connection between the support shaft and the housing of the foot rest 1, a mounting seat 11 is supported and arranged between the shaft lever of the support shaft 7 and the inner end surface of the upper housing 101, and mounting bolts 14 are respectively arranged to sequentially penetrate through the shaft lever of the support shaft and the mounting seat 11 below the shaft lever so as to realize the fixed connection of the shaft lever and the mounting seat 11;

Preferably, the upper end surface of the mounting seat 11 is provided with a groove body which is concave downwards and can adapt to the shaft lever clamping of the supporting shaft 7.

For the specific installation structure of the balance car supporting shaft 7 and the hub 6, there are various implementation forms, wherein in a preferred embodiment, the wheel shaft of the hub 6 and the supporting shaft 7 are integrally arranged on the same shaft, and the hub 6 directly rotates along with the rotation of the supporting shaft. Specifically, the wheel shaft of the hub 6 extends rightward along the horizontal direction to form the support shaft 7, which has a simple structure and simplifies the installation mode. Compared with the prior art, the balance car with the control rod reduces fittings on the frame structure, and the middle of the balance car with the control rod takes a support shaft connected with a hub (a hub motor) as the frame, so that the weight and the cost of the whole car are reduced.

In another preferred embodiment, the wheel axle of the wheel hub 6 is connected with the support axle in a driving manner by bolts after the insertion of the large and small diameter axles, and the support axle rotates with the wheel hub 6 connected with the support axle in a driving manner. Specifically, the wheel shaft of the hub 6 is inserted into the outer end of the supporting shaft 7, and a fixing bolt is arranged to pass through the wheel shaft and the supporting shaft 7 in the radial direction and then fixedly connect the two.

Further, the balance car in this embodiment further includes a power supply assembly for supplying power to the control main board, and the power supply assembly is disposed in the battery box 12;

The battery box 12 is mounted on the upper shell 101, a notch 121 for the supporting shaft 7 to pass through is formed in the middle of the battery box 12, and the battery box is compact in mounting structure and improves stability of the internal structure.

Further, the balance car in the present embodiment further includes a reset assembly 13 including an elastic member 131 and a support base 132;

the support base 132 is fixedly connected with the pedal seat 1;

the support base 132 is provided with a shaft mounting groove 1321 and an elastic support groove 1322, and the steering shaft 3 is rotatably accommodated in the shaft mounting groove 1321;

the elastic supporting groove 1322 is arranged perpendicular to the length direction of the shaft mounting groove 1321, and the bottom surface of the middle part is lower than the bottom surfaces of the grooves at the two ends;

The elastic member 131 is adapted to be received in the elastic supporting groove 1322, and is vertically inserted into the shaft body of the steering shaft 3 (as shown in fig. 9) or is received in the elastic receiving groove 31 in the lower portion of the steering shaft 3 (as shown in fig. 8).

The shaft mounting groove 1321 and the elastic mounting groove 1322 in this embodiment are disposed in a cross shape, and the position where they meet forms a middle groove with a larger groove depth (the groove depth of the rest of the shaft mounting groove 1321 and the elastic mounting groove 1322 is larger than that of the rest of the shaft mounting groove 1321 and the elastic mounting groove 1322), both ends of the elastic member 131 are received by the groove bottom surfaces of the two end positions of the elastic mounting groove 1322 except the middle groove, and the middle groove and the elastic member 131 are mounted in such a manner that they have a space for elastic deformation, and preferably, the elastic member 131 may be an elastic shaft or an elastic sheet.

When the steering shaft 3 is driven to rotate by the control rod 2, the steering shaft 3 extrudes the elastic piece 131 penetrating or accommodated in the elastic accommodating groove 31 at the lower part of the steering shaft 3 to enable the elastic piece to elastically deform, and the restoring force generated based on the elastic deformation acts back on the steering shaft 3, so that when the external force acting on the control rod 2 disappears, the steering shaft 3 can automatically drive the control rod 2 to quickly return to the centered vertical position.

The optimal implementation mode of the balance car in the technical scheme comprises a pedal seat 1, an operating rod 2, a steering shaft 3, a transmission part 4, two main board boxes 5, a hub 6, a supporting shaft 7, an elastic part 8, two bearing platforms 9 and a bearing seat 10;

The lower part of the control rod 2 is provided with a steering shaft 3 capable of swinging to rotate along with the control rod, the steering shaft 3 is rotatably connected with the pedal seat 1, and the transmission piece 4 is connected with the steering shaft 3 to rotate along with the steering shaft; the support shaft 7 is arranged in the pedal seat 1 in an extending manner along the length direction, and two hubs 6 are respectively provided with two ends of the support shaft 7;

The steering shaft 3 extends along a length direction perpendicular to the supporting shaft 7, the middle part of the main board box 5 is hinged to a rod body of the supporting shaft 7 through the bearing seat 10, the bearing seat 10 is fixedly connected with the main board box 5, and the length direction of the main board box 5 is parallel to the length extending direction of the steering shaft 3; the middle part of the transmission piece 4 is fixed at one end of the steering shaft 3, the two main plate boxes 5 are respectively positioned at two sides of the steering shaft 3, and the two free ends of the transmission piece 4 are respectively positioned above the two main plate boxes 5;

the bearing platform 9 is fixed on the supporting shaft 7, the bearing platform 9 and the main board box 5 form a reset space 00, the elastic piece 8 is arranged in the reset space 00, one end of the elastic piece is abutted to the bearing platform 9, and the other end of the elastic piece is abutted to the main board box 5.

When the balance car steering device is used (taking left steering as an example for illustration), a user rotates the control rod 2 leftwards, along with the rotation of the steering shaft 3 and the transmission piece 4 in the anticlockwise direction, the left end of the transmission piece 4 is pressed downwards, the right end of the transmission piece is tilted upwards, the pressed left end continuously transmits downward pressure to the left main board box 5, the left main board box 5 rotates around the supporting shaft 7, a gyroscope on a control main board in the main board box 5 instantly senses a deflection signal generated by the gyroscope, the gyroscope transmits the signal to a control module on the control main board, the control module sends an instruction to a motor for controlling the movement of a wheel hub according to the signal, and the motor for receiving the signal controls the wheel hub to do left deflection movement so as to realize steering adjustment of the balance car.

When the left main board box 5 rotates around the supporting shaft 7, the elastic piece 8 is also subjected to downward pulling force, and based on the elastic characteristics of the elastic piece, upward restoring force can be generated to assist the left main board box 5 to restore to the balance position as soon as possible after the steering is completed.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. The utility model provides a balance car, includes foot rest and control lever, the lower part of control lever is equipped with the steering spindle that can swing and pivoted thereupon, the steering spindle with foot rest rotatable coupling, its characterized in that:

2. The balance car of claim 1, wherein: the transmission piece is hinged to the main board box;

3. The balance car of claim 2, wherein: the transmission piece is of a bar-shaped plate structure, and the end part of the transmission piece is provided with a bending part extending outwards perpendicularly.

4. The balance car of claim 1, wherein: the balance car further comprises a wheel hub and a supporting shaft, wherein the wheel hub is arranged at the end part of the supporting shaft, and the supporting shaft is arranged in an extending mode along the length direction of the pedal seat;

the main board box is hinged to the shaft lever of the supporting shaft.

5. Balance car according to claim 1 or 4, characterized in that: the pedal seat is characterized by further comprising an elastic piece which is arranged in the cavity of the pedal seat, one end of the elastic piece is abutted against the inner wall surface of the cavity of the pedal seat, and the other end of the elastic piece is abutted against the end surface of the main board box.

6. Balance car according to claim 1 or 4, characterized in that: the pedal seat is characterized by also comprising an elastic piece and a bearing platform, wherein the bearing platform is fixed in the cavity of the pedal seat and forms a reset space with the main board box;

7. The balance car of claim 6, wherein: the bearing platform is fixedly connected with a supporting shaft used for installing a hub in a cavity of the pedal seat, the main board box is provided with an installation notch through which the supporting shaft penetrates, a bearing seat is arranged in the installation notch, the supporting shaft is rotatably arranged on the bearing seat in a penetrating manner, and the bearing seat is fixedly connected with the main board box;

8. The balance car of claim 7, wherein: the two bearing platforms are respectively arranged at the left side and the right side of the bearing seat, each bearing platform is provided with two elastic pieces, and the two elastic pieces are respectively arranged at the front side and the rear side of the supporting shaft.

9. The balance car of claim 7, wherein: the cover plate is provided with an installation groove for accommodating the supporting shaft and protruding outwards, an installation hole for exposing the bearing seat is formed in the middle of the installation groove, and the bearing seat is fixedly connected with the cover plate.

10. Balance car according to claim 1 or 2, characterized in that: the two main board boxes are respectively arranged at two sides of the steering shaft, the middle part of the transmission piece is fixed at the steering shaft, and the two free ends of the transmission piece extend to the upper parts of the two main board boxes respectively.

11. The balance car of claim 4, wherein: the pedal seat comprises an upper shell and a lower shell which are mutually buckled and form an installation cavity:

12. The balance car of claim 11, wherein: the shaft rod of the support shaft and the inner end surface of the upper shell are supported and provided with mounting seats, and mounting bolts are respectively arranged to sequentially penetrate through the shaft rod of the support shaft and the mounting seats below the shaft rod of the support shaft so as to realize the fixed connection of the shaft rod of the support shaft and the mounting seats.

13. The balance car of claim 12, wherein: the upper end face of the mounting seat is provided with a groove body which is concave downwards and can adapt to the shaft lever clamping of the supporting shaft.

14. The balance car of claim 4, wherein: the wheel axle of the hub extends inwardly in a horizontal direction to form the support axle.

15. The balance car of claim 4, wherein: the wheel shaft of the wheel hub is inserted into the outer end of the supporting shaft, and a fixing bolt is arranged to pass through the wheel shaft and the supporting shaft along the radial direction and then fixedly connect the wheel shaft and the supporting shaft.

16. The balance car of claim 12, wherein: the power supply assembly is used for providing power for the control main board and is arranged in the battery box;

17. Balance car according to claim 1 or 2, characterized in that: the reset assembly comprises an elastic piece and a supporting base;

The support base is fixedly connected with the pedal seat;

18. The utility model provides a balance car which characterized in that: the device comprises a pedal seat, a control rod, a steering shaft, a transmission piece, a main board box for controlling the installation of a main board, a hub, a supporting shaft, a bearing seat, an elastic piece and a bearing platform;

19. The balance car of claim 18, wherein: the middle part of the main board box is hinged with the rod body of the supporting shaft through the bearing seat, and the length direction of the main board box is parallel to the length extending direction of the steering shaft;

20. The balance car of claim 19, wherein: the main board box is provided with an installation notch through which the supporting shaft penetrates, and the bearing seat is positioned in the installation notch;