CN111846073A

CN111846073A - Balance car

Info

Publication number: CN111846073A
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: 2020-10-30
Anticipated expiration: 2040-08-17
Also published as: CN111846073B

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 thereupon and rotate, steering spindle and pedal seat rotatable coupling still include driving medium and the mainboard box that is used for controlling the mainboard installation, the driving medium with steering spindle connects in order to rotate thereupon, mainboard box is articulated to be set up in the cavity of pedal seat, and is located the rotation interference scope of driving medium, works as when the driving medium takes place to rotate, the mainboard box receives its interference and takes place to rotate or swing. The mechanical signal transmission mode is used for getting rid of the toggle of the Hall assembly, so that the diversity requirement and the cost of the control main board are reduced.

Description

Balance car

Technical Field

The invention relates to the field of balance cars, in particular to a balance car.

Background

The balance car is also called a somatosensory car, a thinking car or a photographic car and the like. The market mainly includes two types, namely a single wheel and a double wheel, and the operation principle of the system is mainly established on a basic principle called Dynamic Stabilization (Dynamic Stabilization), a gyroscope and an acceleration sensor in the vehicle body are used for detecting the change of the vehicle body posture, 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 prior art balance car comprises a pedal seat, a control rod and a Hall assembly, wherein the lower part of the control rod is provided with a steering shaft (generally swinging left and right) which can swing along with the control rod and rotate, 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 control rod to swing towards the corresponding direction, the control rod drives the steering shaft to rotate, the rotating signal of the rotating shaft is obtained by the Hall assembly and fed back to the control main board, the control main board sends a signal to the hub of the balance car to make corresponding steering action, and the signal is limited by the use of the Hall assembly, the control mainboard can not be used on different balance cars (with the control rod and without the control rod) in a compatible manner (the balance car control mainboard without the control rod has no Hall assembly), and particularly the control mainboard with the Hall assembly on the control rod is high in cost, so that the market competitiveness of the balance car with the control rod is severely restricted.

Disclosure of Invention

In view of the above technical problems, a primary object of the present invention is to provide a balance car, which gets rid of the toggle of the hall element (without hall steering) through a mechanical signal transmission manner, so that a control main board of the balance car without a control lever can be applied to the balance car with the control lever, a control function of a high-cost main board is replaced by a low-cost control main board, performance is stable, cost is greatly reduced, and market competitiveness of the product is improved.

In order to achieve the 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 which can swing along with the control rod and rotate, the steering shaft is rotatably connected with the pedal seat,

still include the driving medium and be used for controlling the mainboard box of mainboard installation, the driving medium with steering spindle connects in order can rotate thereupon, mainboard box is articulated to be set up in the cavity of pedal seat, and is located the rotation interference within range of driving medium, works as when the driving medium takes place to rotate, mainboard box receives its interference and thereupon takes place to rotate or swing.

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

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

or, the main board box is positioned on the side edge of the steering shaft, the transmission piece is fixed on the steering shaft, and the transmission piece is suspended on the upstream of the initial position of the rotation or swing of the main board box.

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

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

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

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

Preferably, the device further comprises an elastic piece and a bearing platform, wherein the bearing platform is fixed in a cavity of the pedal seat and forms a reset space with the mainboard 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 support shaft used for mounting a wheel hub in a cavity of the pedal seat, the main board box is provided with a mounting notch through which the support shaft passes, a bearing seat is arranged in the mounting notch, the support shaft rotatably penetrates through the bearing seat, and the bearing seat is fixedly connected with the main board box;

the mainboard box still including cover in the board is closed to the lid of installation breach, accept the platform and be located in the installation breach, and be located the below of lid plywood, the lower extreme butt of elastic component in accept the up end of platform, the upper end butt in the interior terminal surface of lid plywood.

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 lid plywood is equipped with and holds back shaft and outside convex mounting groove, the middle part of mounting groove is equipped with the confession the mounting hole that the bearing frame exposes, the bearing frame with lid board fixed connection closes.

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

Preferably, the pedal seat comprises an upper shell and a lower shell which are buckled with each other and form a mounting cavity:

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

Preferably, an installation seat is supported between the shaft lever of the support shaft and the inner end face of the upper shell, and installation bolts sequentially penetrate through the shaft lever of the support shaft and the installation seat below the shaft lever to realize fixed connection of the shaft lever and the installation seat;

preferably, the upper end face of the mounting seat is provided with a groove which is recessed downwards and can adapt to the shaft lever clamping of the supporting shaft.

Preferably, the wheel shaft of the wheel hub extends inward in the horizontal direction to form the support shaft.

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

Preferably, the power supply assembly is used for supplying power to the control main board and is arranged in a battery box;

the battery box is arranged on the upper shell, and a notch for the supporting shaft to pass through is formed in the middle of the battery box.

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

the supporting 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 two ends of the elastic supporting groove;

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

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

the lower part of the control rod is provided with a steering shaft which can swing along with the control rod to rotate, 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 supporting shaft extends along the length direction of the pedal seat and is arranged in the pedal seat, and the two hubs are respectively provided with two ends of the supporting shaft;

the steering shaft extends along the length direction perpendicular to the supporting shaft, the main board box is hinged to the rod body of the supporting shaft, the transmission piece is fixed at one end of the rotating 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 support shaft can rotatably penetrate through the bearing seat; the bearing platform is fixed on the supporting shaft, the bearing platform and the mainboard 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 mainboard box.

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

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

Preferably, the main board box is provided with an installation notch for the support shaft to pass through, and the bearing seat is positioned in the installation notch;

The main board box in the technical scheme is used for installing a control main board of the balance car, the gyroscope is integrated on the control main board, when the balance state of the main board box is broken by external force, the gyroscope senses signals of the change direction of the main board box and transmits the signals to the control module on the control main board, the control module sends out instructions to a motor for controlling the movement of a hub according to the signals, and the motor for receiving the signals controls the hub to make corresponding movement so as to realize steering adjustment of the balance car.

The main board box in the embodiment is hinged to an internal cavity of the pedal seat, and the main board box maintains a balance state in the normal running process of the balance car; when a user standing on the pedal seat needs to change the traveling direction of the user, the operating rod is manually rotated to swing to one side of the desired direction, the steering shaft and the transmission piece connected with the steering shaft rotate along with the operating rod to the corresponding direction, and the transmission piece can interfere with a mainboard box in a rotating interference range in the rotating process, wherein the interference can be mechanical collision under the condition that the steering shaft and the transmission piece are not directly connected, or traction and traction interference under the condition that the steering shaft and the transmission piece are connected; etc., which may occur to those skilled in the art without the exercise of inventive faculty, and which may be embodied in other specific forms with the same or equivalent technical effects, all of which are considered to fall within the scope of the invention.

After the hinged main board box is interfered, the main board box can rotate or swing around a hinged shaft of the transmission piece correspondingly along with the rotating direction of the transmission piece, direction change signals generated by the rotation or the swing are sensed by a gyroscope on a control main board in the main board box 5, the gyroscope transmits the signals to a control module on the control main board, the control module sends instructions to a motor for controlling the movement of a hub according to the signals, and the hub is controlled by the motor for receiving the signals to move correspondingly so as to realize the steering adjustment of the balance car.

Still, the balance car with the control lever in this technical scheme compares with the balance car with the control lever among the prior art, has reduced the accessory on the frame structure, and the centre uses a supporting shaft to connect wheel hub (in-wheel motor) as the frame, has alleviateed the weight and the cost of whole car, needs to explain, and this frame structure is equally general in having the balance car with the control lever through the control mainboard of hall steering on the market.

Drawings

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

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

FIG. 2 is a schematic view of an internal structure of an embodiment of the balance car of the present invention;

FIG. 3 is a schematic view of one embodiment of the assembly of the main plate box and the support rods of the present invention;

FIG. 4 is a side view of one embodiment of the assembly of the main board housing and the support rods of the present invention;

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

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

FIG. 7 is a schematic view of another embodiment of the positional mounting relationship of the main board cassette and the transmission member in the present invention;

FIG. 8 is an exploded view of an embodiment of the reset mechanism of the present invention;

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

The reference numbers illustrate:

a pedal base 1, an upper shell 101;

a control lever 2; the steering shaft 3, the elastic receiving groove 31; the transmission piece 4 is a U-shaped groove 41;

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

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

the reset assembly 13, the elastic member 131, the support base 132, the shaft installation slot 1321, and the elastic support slot 1322; mounting bolts 14, hinge seats 15.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment 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 relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

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

A balance car comprises a pedal seat 1 and a control rod 2, wherein the lower part of the control rod 2 is provided with a steering shaft 3 which can swing along with the control rod and rotate, and the steering shaft 3 is rotatably connected with the pedal seat 1;

still include driving medium 4 and the mainboard box 5 that is used for controlling the mainboard installation, driving medium 4 with steering shaft 3 is connected in order can rotate thereupon, mainboard box 5 articulates the setting in the cavity of pedal seat 1, and is located the rotation interference scope of driving medium 4, when driving medium 4 takes place to rotate, mainboard box 5 is interfered and is rotated or the swing thereupon by it.

The main board box 5 in the technical scheme is used for installing a control main board of the balance car, the gyroscope is integrated on the control main board, when the balance state of the main board box 5 is broken by external force, the gyroscope senses signals of the change direction of the main board box and transmits the signals to the control module on the control main board, the control module sends instructions to a motor for controlling the movement of a hub according to the signals, and the motor for receiving the signals controls the hub to make corresponding movement so as to realize steering adjustment of the balance car.

In the embodiment, the main board box 5 is hinged to the inner cavity of the pedal seat 1, and the main board box 5 maintains a balance state in the normal running process of the balance car; when a user standing on the pedal seat 1 needs to change the traveling direction of the user, the operating rod 2 is manually swung to one side of the desired direction, the steering shaft 3 and the transmission piece 4 connected with the steering shaft rotate along with the operating rod 2 in the corresponding direction, and the transmission piece 4 interferes with the main board box 5 in the rotating interference range in the rotating process, wherein the interference can be mechanical collision under the condition that the steering shaft 3 and the transmission piece 4 are not directly connected, or traction and traction interference under the condition that the steering shaft 4 and the transmission piece have the connection relationship; etc., which may occur to those skilled in the art without the exercise of inventive faculty, and which may be embodied in other specific forms with the same or equivalent technical effects, all of which are considered to fall within the scope of the invention.

After the articulated main board box 5 is interfered, the articulated main board box can rotate or swing around an articulated shaft of the transmission piece 4 along with the rotating direction of the transmission piece, a direction change signal generated by the rotation or the swing 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 a hub according to the signal, and the hub is controlled by the motor for receiving the signal to move correspondingly so as to realize the steering adjustment of the balance car.

As to the specific implementation structure for implementing the mechanical transmission of the motion signal between the transmission member 4 and the main board box 5, there are following preferred embodiments:

the first embodiment is as follows: the transmission member 4 is hinged to the main board box 5, in this embodiment, the transmission member 4 and the main board box 5 have a direct connection relationship, and when the transmission member 4 is driven by the operating lever 2 to rotate, the main board box 5 is driven to rotate or swing in the same direction by taking a hinged shaft as a pivot. Because the transmission part 4 and the main board box 5 are in direct hinged relation, the transmission part 4 can provide power sources for the main board box 5 to move around the hinged shaft in two opposite directions, and the balance car can be suitable for control main boards of balance cars of different styles (only one control main board of some styles can realize the adjustment of the left-right movement direction, and two control main boards of some styles can respectively control the adjustment of the left-right movement direction), thereby facilitating the batch production of manufacturers.

The specific hinge structure may be that, as shown in fig. 6, 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 penetrate through the transmission member 4 and the U-shaped hinge groove and then hinge the transmission member 4 and the U-shaped hinge groove.

The second embodiment is as follows: as shown in fig. 7, in the balanced state of the present 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 counterclockwise, 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 directions of movement. In this embodiment, the transmission member 4 and the main board box 5 are mechanically collided without direct connection through a specific structure, and power sources can be provided for the main board box 5 to move around the hinge shaft of the main board box in two opposite directions when the rotation directions of the transmission member 4 are different, so that the control main board can be adapted to different styles of balance cars (only one control main board is provided for realizing the adjustment of the left-to-right movement direction, and two control main boards are provided for controlling the adjustment of the left-to-right movement direction respectively), and the batch production of manufacturers is facilitated.

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

Preferably, the transmission member 4 is preferably a strip plate structure, and the end of the transmission member is provided with a bending portion extending perpendicularly outwards, so that the structure is simple, and the bending portion can better provide a force application point when the two interfere with each other.

The mainboard box 5 among this technical scheme articulates the setting in the inner chamber of balance car pedal seat 1 to do not specifically prescribe articulated position, as long as the position of its installation and driving medium 4 suit the cooperation, mainboard box 5 can be with the help of the effort that driving medium 4's rotation produced oneself and realize swing or rotation can. Specifically, the main board box 5 may be hinged to the upper cover of the foot rest 1, or may be a lower cover of the foot rest 1.

Similar to all balance cars, the balance car of the technical scheme further 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 extends along the length direction of the pedal seat 1, and the wheel hub 6 is driven by a motor;

for the hinge position of the main board box 5, it is preferable that the shaft lever hinge-connected to the support shaft 7, i.e., the support shaft 7, plays a role of the connecting boss 6 and also serves as a hinge shaft of the main board box 5, which greatly saves the assembly structure and space.

The balance vehicle of the present embodiment is further provided with an elastic member 8, on one hand, the main board box 5 can quickly return to the position of the balanced state, and on the other hand, the main board box 5 in the balanced state can be maintained more stably based on the restoring force of the elastic member 8 in the compressed state.

As for the arrangement mode of the elastic member 8, the elastic member may be arranged in the cavity of the pedal seat 1, one end of the elastic member 8 abuts against the inner wall surface of the cavity of the pedal seat 1, and the other end abuts against the end surface of the main board box 5; in a balanced state, the compressed elastic piece 8 continuously acts the restoring force on the main board box 5 and the inner wall surface of the cavity of 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 member 8 is stretched or further compressed to generate a restoring force for urging the main board box 5 to return to the equilibrium position, which facilitates installation.

In another embodiment, a receiving platform 9 fixed in the cavity of the foot rest 1 is additionally provided, 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 component in the cavity of the foot rest 1, such as the supporting shaft 7, specifically, the receiving platform 9 and the main board box 5 form a reset space 00;

elastic component 8 is located in the space 00 that resets, its one end butt in accept platform 9, other end butt in mainboard box 5, the action principle is same as above, but this embodiment has isolated the direct contact of elastic component 8 with 1 casing of pedal seat, avoids the user to stand on pedal seat 1 or when meetting uneven road, produces wrong guide to the state of elastic component 8, guarantees the accurate feedback of elastic component 8 and mainboard box 5 state, improves performance.

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

Preferably, the main board box 5 is provided with an installation notch 50 for the support shaft 7 to pass through, a bearing seat 10 is arranged in the installation notch 50, the support 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 mainboard box 5 is still including cover in the board 51 is closed to the lid of installation breach 50, accept platform 9 and be located in installation breach 50, and be located the below of lid board 51, the lower extreme butt of elastic component 8 in accept the up end of platform 9, the upper end butt in the interior terminal surface of lid board 51.

In this embodiment, the bearing seat 10 fixedly connected to the main board box 5 is provided, so that on one hand, the main board box 5 can smoothly rotate around the supporting shaft 7, and on the other hand, the bearing seat also plays a role in positioning, thereby preventing the supporting shaft 7 and the main board box 5 from moving relative to each other along the length direction thereof.

The main board box 5 is provided with the installation notch 50, so that 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 is not easy to shake.

Preferably, the two bearing platforms 9 are respectively arranged at the left side and the right side of the bearing seat 10, each bearing platform 9 is provided with two elastic pieces 8, and the two elastic pieces 8 are respectively arranged at the front side and the rear side of the supporting shaft 7, so that the stability is better.

Preferably, lid board 51 is equipped with and holds support shaft 7 and outside convex mounting groove 52, the middle part of mounting groove 52 is equipped with the confession mounting hole 53 that bearing frame 10 exposed, bearing frame 10 with lid board 51 fixed connection increases area of contact and increases the frictional force between mainboard box 5 and the support shaft 7, guarantees the stability of mainboard box 5 when balanced state, is unlikely to rocked easily.

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 on the steering shaft 3, and two free ends of the transmission member respectively extend above the two main board boxes 5 to respectively control the adjustment of the left-right movement direction.

The footrest 1 of the balance car in this embodiment includes an upper case 101 and a lower case that are fastened to each other and form a mounting chamber:

the shaft rod of the support shaft 7 extends along the length direction of the foot rest 1 and is fixedly connected with the upper shell 101, the outer end surface of the foot rest 1 is the place where a user stands, in the embodiment, the support shaft 7 is directly fixed on the upper shell 101, and the support strength of the foot rest 1 is improved.

Further, in order to improve the stability of the connection between the support shaft and the casing of the foot rest 1, a mounting seat 11 is supported between the shaft lever of the support shaft 7 and the inner end surface of the upper casing 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 between the shaft lever and the mounting seat;

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

For the specific mounting structure of the balance car supporting shaft 7 and the wheel hub 6, various implementation forms exist, wherein one preferable embodiment is that the wheel shaft of the wheel hub 6 and the supporting shaft 7 are integrally arranged on the same shaft, and the supporting shaft rotates, so that the wheel hub 6 directly and then rotates together. Specifically, the wheel shaft of the wheel hub 6 extends rightwards along the horizontal direction to form the supporting shaft 7, so that the structure is simple, and the installation mode is simplified. Compared with the control rod balance vehicle in the prior art, the control rod balance vehicle has the advantages that accessories are reduced on the vehicle frame structure, a supporting shaft is connected with a hub (a hub motor) as the vehicle frame in the middle, the weight and the cost of the whole vehicle are reduced, and the vehicle frame structure is also universal for the control rod balance vehicle with the control main board which is steered through the Hall.

Another preferred embodiment is that the wheel axle of the wheel hub 6 is connected with the supporting axle in a transmission manner through a bolt fixation mode after the insertion of the large and small diameter axles, and the supporting axle rotates at the wheel hub 6 connected with the supporting axle in a transmission manner and then rotates together. Specifically, the wheel shaft of the wheel hub 6 is inserted into the outer end of the support shaft 7, and a fixing bolt is arranged to penetrate through the wheel shaft and the support shaft 7 along the radial direction and then fixedly connect the wheel shaft and the support shaft 7.

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

the battery box 12 is mounted on the upper casing 101, and a notch 121 for the support shaft 7 to pass through is formed in the middle of the battery box 12, so that the mounting structure is compact, and the stability of the internal structure is improved.

Further, the balance car in this embodiment further includes a return assembly 13, which includes an elastic member 131 and a support base 132;

the supporting 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 received in the shaft mounting groove 1321;

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

the elastic member 131 is accommodated in the elastic support slot 1322, and vertically penetrates through the body of the steering shaft 3 (as shown in fig. 9) or is accommodated in the elastic accommodation slot 31 at the lower part 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, a middle groove (deeper than the rest of the shaft mounting groove 1321 and the elastic mounting groove 1322) having a larger groove depth is formed at a position where the shaft mounting groove 1321 and the elastic mounting groove 1322 intersect with each other, two ends of the elastic member 131 are received by the groove bottom surfaces of the elastic mounting groove 1322 at two end positions except the middle groove, the middle groove and the elastic member 131 are mounted in such a manner that they have an elastically deformable space, and preferably, the elastic member 131 may be an elastic shaft or an elastic sheet.

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

In the technical scheme, the optimal implementation mode of the balance car comprises a pedal seat 1, a control rod 2, a steering shaft 3, a transmission piece 4, two main plate boxes 5, a hub 6, a supporting shaft 7, an elastic piece 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 which can swing along with the control rod to rotate, the steering shaft 3 is rotatably connected with the pedal base 1, and the transmission piece 4 is connected with the steering shaft 3 so as to rotate along with the steering shaft; the supporting shaft 7 extends along the length direction of the pedal seat 1 and is arranged in the pedal seat, and the two hubs 6 are respectively provided with two ends of the supporting shaft 7;

the steering shaft 3 extends along the length direction perpendicular to the supporting shaft 7, the middle part of the main board box 5 is hinged to the 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 rotating shaft 3; the middle part of the transmission part 4 is fixed at one end of the rotating shaft 3, the two main plate boxes 5 are respectively positioned at two sides of the rotating shaft 3, and two free ends of the transmission part 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 mainboard box 5 form a reset space 00, the elastic piece 8 is arranged in the reset space 00, one end of the elastic piece abuts against the bearing platform 9, and the other end of the elastic piece abuts against the mainboard box 5.

When the balance car is used (taking leftward turning as an example for explanation), a user rotates the control rod 2 leftward, along with the leftward turning, the rotating shaft 3 and the transmission part 4 rotate in the counterclockwise direction simultaneously, the left end of the transmission part 4 is pressed downwards, the right end of the transmission part 4 is tilted upwards, the pressed left end continuously transmits downward pressure to the left main board box 5, so that 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 senses a deflection signal generated by the gyroscope and transmits the deflection 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 hub according to the signal, and the motor for controlling the hub to make leftward 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 member 8 is also pulled downwards, and due to the elastic property thereof, an upward restoring force is generated to assist the left main board box 5 to return to the equilibrium position as soon as possible after the steering is completed.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A balance car comprises a pedal seat and a control rod, wherein a steering shaft capable of swinging along with the control rod and rotating is arranged at the lower part of the control rod, and the steering shaft is rotatably connected with the pedal seat, and the balance car is 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 part is of a strip-shaped plate structure, and a bending part extending outwards perpendicularly is arranged at the end part of the transmission part.

4. The balance car of claim 1, wherein: the balance car further comprises a hub and a support shaft, 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 a shaft lever of the supporting shaft.

5. The balance car of claim 1 or 4, wherein: the pedal device is characterized by further comprising 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 mainboard box.

6. The balance car of claim 1 or 4, wherein: the supporting platform is fixed in a cavity of the pedal seat and forms a reset space with the mainboard box;

7. The balance car of claim 6, wherein: the bearing platform is fixedly connected with a supporting shaft used for mounting a wheel hub in a cavity of the pedal seat, the main board box is provided with a mounting notch through which the supporting shaft passes, a bearing seat is arranged in the mounting notch, the supporting shaft can rotatably penetrate the bearing seat, 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 on 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 on the front side and the rear side of the supporting shaft.

9. The balance car of claim 7, wherein: the apron closes the board and is equipped with and holds back shaft and outside convex mounting groove, the middle part of mounting groove is equipped with the confession the mounting hole that the bearing frame exposes, the bearing frame with apron fixed connection.

10. The balance car of claim 1 or 2, wherein: the two main board boxes are respectively arranged on two sides of the steering shaft, the middle part of the transmission part is fixed on the steering shaft, and two free ends of the transmission part respectively extend to the upper parts of the two main board boxes.

11. The balance car of claim 4, wherein: the pedal seat includes the last casing and the lower casing of mutual lock and formation installation cavity:

12. The balance car of claim 11, wherein: a mounting seat is supported between the shaft lever of the supporting shaft and the inner end face of the upper shell, and mounting bolts sequentially penetrate through the shaft lever of the supporting shaft and the mounting seat below the shaft lever to realize the fixed connection of the shaft lever and the mounting seat;

13. The balance car of claim 4, wherein: the wheel shaft of the wheel hub extends inwards along the horizontal direction to form the supporting shaft.

14. The balance car of claim 4, wherein: the wheel hub is characterized in that a wheel shaft of the wheel hub is inserted into the outer end of the supporting shaft, and a fixing bolt penetrates through the wheel shaft and the supporting shaft along the radial direction to fixedly connect the wheel shaft and the supporting shaft.

15. The balance car of claim 12 or 13, wherein: the power supply assembly is arranged in the battery box;

16. The balance car of claim 1 or 2, wherein: the reset assembly comprises an elastic piece and a supporting base;

the supporting base is fixedly connected with the pedal seat;

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

18. The balance car of claim 17, wherein: the middle part of the main board box is hinged to the rod body of the supporting shaft through the bearing seat, and the length direction of the main shaft box is parallel to the length extending direction of the rotating shaft;

19. The balance car of claim 18, wherein: the main board box is provided with an installation notch for the support shaft to penetrate through, and the bearing seat is positioned in the installation notch;