CN111846070A - balance car - Google Patents

Abstract

The invention discloses a balance car which comprises a first wheel, a second wheel, a first car body, a second car body and a connecting piece, wherein the first wheel is provided with a first wheel shaft, the second wheel is provided with a second wheel shaft, the first car body is installed on the first wheel shaft, the second car body is installed on the second wheel shaft, the first car body is provided with a first connecting disc, the second car body is provided with a second connecting disc, the first connecting disc and the second connecting disc are connected through the connecting piece, and the first connecting disc can rotate relative to the second connecting disc by a preset angle. The balance car connecting device provided by the embodiment of the invention has the advantages of simple structure, strong reliability, capability of flexibly adjusting the steering amplitude and wide application range.

Description

balance car

technical field

The present application relates to the technical field of means of transportation, and in particular, to a balance car.

Background technique

A balance car is a daily means of transportation. A common type of balance car is a balance car that completes the steering through the relative twisting of the body pedals, so it is also called a twist car. Such a balance car includes a left body (pedal) and a right body (pedal), a left wheel and a right wheel, and the left body and the right body are connected by a connecting device. In the related art, the balance car is controlled by the connecting device. Steering However, the structure of the connecting device of such a balance car is complex, and the ability to maintain a straight line is poor, so it is not suitable for daily travel.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the embodiments of the present invention provide a balance car, the connection device of the balance car has a simple structure, can flexibly adjust the steering range, and has a wide range of applications.

A balance car according to an embodiment of the present invention includes a first wheel, a second wheel, a first vehicle body, a second vehicle body, and a connecting member, the first wheel having a first axle, the second wheel having a second axle, The first vehicle body is mounted on the first axle, the second vehicle body is mounted on the second axle, the first vehicle body has a first connecting plate, and the second vehicle body has a first connecting plate. Two connecting plates, the first connecting plate and the second connecting plate are connected by the connecting piece, and the first connecting plate can rotate a predetermined angle relative to the second connecting plate.

According to the balance vehicle of the embodiment of the present invention, the first vehicle body and the second vehicle body are connected through the first connecting plate, the second connecting plate and the connecting piece, and when the first vehicle body and the second vehicle body rotate relative to each other, the first vehicle body and the second vehicle body are connected through the first connection. The plate, the second connecting plate and the connecting piece can limit the rotation angle of the first vehicle body and the second vehicle body within a predetermined angle range, and the predetermined angle can be determined according to specific design and needs. , the first vehicle body and the second vehicle body are connected and limited in rotation only through two connecting discs and connecting pieces, the structure is simple and the reliability is good.

In some embodiments, the first connecting plate is provided with a first connecting hole and a first circumferential limiting long hole extending along the circumferential direction of the first connecting plate, and the second connecting plate is provided with a second A connecting hole and a second circumferential limiting long hole extending along the circumferential direction of the second connecting plate, the connecting piece includes a first connecting rod and a second connecting rod, the first connecting rod passing through the first connecting rod. A circumferential limiting long hole is matched with the second connecting hole, the first connecting rod is movable along the circumferential direction of the first connecting plate in the first circumferential long hole, and the second connecting rod is movable in the circumferential direction of the first connecting plate. The connecting rod passes through the second circumferential limiting long hole and is matched with the first connecting hole, and the second connecting rod is movable along the circumferential direction of the second connecting plate in the second circumferential long hole .

In some embodiments, the first connecting rod and the second connecting rod are bolts, the first connecting hole and the second connecting hole are threaded holes, and the first connecting rod passes through the first connecting rod. The circumferential limiting long hole is threadedly matched with the second connecting hole, and the second connecting rod passes through the second circumferential limiting long hole and is threadedly matched with the first connecting hole.

In some embodiments, the first connecting rod and the second connecting rod are stud bolts, the first connecting hole and the second connecting hole are through holes, and the first connecting rod The end protrudes from the first circumferential limiting long hole and is matched with the nut, and the second end of the first connecting rod protrudes from the second connecting hole and cooperates with the nut. The first end protrudes from the second circumferential limiting long hole and is matched with the nut, and the second end of the second connecting rod protrudes from the first connection hole and is matched with the nut.

In some embodiments, the first connecting hole and the first circumferential limiting long hole are both one and are opposite to each other in the radial direction of the first connecting plate, and the second connecting hole and the second The circumferential limiting long holes are all one and are opposite to each other in the radial direction of the second connecting plate.

In some embodiments, both the first connecting rod and the second connecting rod are one.

In some embodiments, the first connection plate is provided with a connection hole, the second connection plate is provided with a circumferential limit long hole extending along the circumference of the second connection plate, and the connection member is a connection a rod, the connecting rod passes through the long circumferential limit hole and is matched with the connecting hole, and the connecting rod is movable in the circumferential direction of the second connecting plate in the long circumferential hole.

In some embodiments, the connecting rod is a bolt, the connecting hole is a threaded hole, and the connecting rod passes through the circumferential limiting long hole to threadedly fit with the connecting hole.

In some embodiments, a first boss is provided on the inner surface of the first connection plate facing the second connection plate, the first boss is provided with a first connection hole, and the first connection plate A first circumferential limiting long hole extending along the circumferential direction of the first connecting plate is provided, a second boss is provided on the inner surface of the second connecting plate facing the first connecting plate, and the The second boss is provided with a second connecting hole, the first connecting plate is provided with a first circumferential limiting long hole extending along the circumferential direction of the first connecting plate, and the first boss is matched with the first boss. The second circumferential limit slot is movable in and in the second circumferential limit slot along the circumferential direction of the second connecting plate, and the second boss is fitted in the first circumferential direction In the limiting long hole and in the first circumferential limiting long hole, it is movable along the circumferential direction of the first connecting plate, and the connecting piece includes a first bolt and a second bolt, the first bolt is from The outer side of the first connection plate is protruded into and screwed into the second connection hole, and the second bolt is protruded from the outer side of the second connection plate and is screwed into the first connection hole Inside.

In some embodiments, the first boss and the first circumferential limiting slot are both one and opposite in the radial direction of the first connecting plate, and the second boss and the second There is one circumferential limit long hole and is opposite in the radial direction of the second connecting plate, both the first bolt and the second bolt are two, the first connecting hole and the second connecting There are two holes, the first bolts extend from the outer side of the first connecting plate through the first blocking plate and are screwed into the second connecting holes, and the second bolts extend from the first connecting plate. The outer sides of the two connecting discs extend through the second blocking piece and are screwed into the first connecting hole.

In some embodiments, a boss is provided on the inner surface of the first connection plate facing the second connection plate, the boss is provided with a connection hole, and the second connection plate is provided with a groove along the second connection plate. Circumferential limiting long holes extending in the circumferential direction of the two connecting plates, the boss fits in the circumferential limiting long holes and extends along the circumference of the second connecting plate in the circumferential limiting long holes. In the movable direction, the connecting member is a bolt, and the bolt extends from the outer side surface of the second connecting plate and is screwed into the connecting hole.

In some embodiments, the number of the bosses is two opposite in the radial direction of the first connecting plate, and the number of the circumferential limiting long holes is two opposite in the radial direction of the second connecting plate.

In some embodiments, the lower surface of the first vehicle body is provided with a first installation groove, the lower surface of the second vehicle body is provided with a second installation groove, and the first axle is pressed against the seat by a first pressing plate. In the first installation groove, the second axle is pressed in the second installation groove by a second pressing plate.

In some embodiments, the first wheel includes a first in-wheel motor, the second wheel includes a second in-wheel motor, a first motor shaft of the first in-wheel motor constitutes the first wheel shaft, and the second in-wheel motor The second motor shaft of the in-wheel motor constitutes the second wheel shaft.

In some embodiments, a limiting gasket is provided between the first connection plate and the second connection plate.

Advantages and technical effects brought by the independent claims according to the embodiments of the present invention.

Description of drawings

1 is an exploded view of a balance car according to an embodiment of the present invention;

2 is a schematic diagram of an assembled state of a balance car according to an embodiment of the present invention;

FIG. 3 is a partial enlarged view of a balance car according to an embodiment of the present invention;

4 is a partial schematic view of a balance car according to an embodiment of the present invention;

5 is an exploded view of a balance car according to another embodiment of the present invention;

Fig. 6 is the partial schematic diagram of the balance car shown in Fig. 5;

7 is an exploded view of a balance car according to another embodiment of the present invention;

Fig. 8 is a partial enlarged view of the balance car shown in Fig. 7;

Fig. 9 is a partial schematic view of the balance car shown in Fig. 7;

10 is a bottom view of a balance car according to an embodiment of the present invention.

In the picture:

first body 1,

Second body 2,

The first wheel 3, the first axle 31, the first pressing plate 32,

The second wheel 4, the second axle 41, the second pressure plate 42,

The first connecting plate 5, the first connecting hole 51, the first circumferential limiting long hole 52, the first boss 53,

The second connecting plate 6, the second connecting hole 61, the second long circumferential limit hole 62, the second boss 63,

Connecting piece 7, first connecting rod 71, second connecting rod 72, first bolt 73, second bolt 74, first blocking piece 75, second blocking piece 76,

Limit washer 8.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

As shown in FIG. 1 and FIG. 2 , the balance car according to the embodiment of the present invention includes a first wheel 3 , a second wheel 4 , a first vehicle body 1 , a second vehicle body 2 and a connecting member 7 , and the first wheel 3 has a first wheel 3 . One wheel axle 31, the second wheel 4 has a second wheel axle 41, the first car body 1 is mounted on the first wheel axle 31, the second car body 2 is mounted on the second wheel axle 41, and the first car body 1 has a first connecting plate 5. The second vehicle body 2 has a second connecting plate 6, the first connecting plate 5 and the second connecting plate 6 are connected by a connecting member 7, and the first connecting plate 5 can be rotated relative to the second connecting plate 6 by a predetermined angle.

According to the balance car according to the embodiment of the present invention, through the first connecting plate 5, the second connecting plate 6 and the connecting piece 7, when the first vehicle body 1 and the second vehicle body 2 rotate relative to each other, the relative rotation angle can be limited to a predetermined angle Within the range, the predetermined angle can be determined according to specific designs and needs. According to the balance vehicle of the embodiment of the present invention, the first vehicle body 1 and the second vehicle body 2 are connected and limited by the two connecting discs and the connecting piece 7, and the structure is simple and the reliability is good.

As shown in FIGS. 3 and 4 , in some embodiments, the first connecting plate 5 is provided with a first connecting hole 51 and a first circumferential limiting long hole 52 extending along the circumferential direction of the first connecting plate 5 . The second connecting plate 6 is provided with a second connecting hole 61 and a second circumferential limiting long hole 62 extending along the circumferential direction of the second connecting plate 6 . The connecting piece 7 includes a first connecting rod 71 and a second connecting rod 72 . A connecting rod 71 passes through the first long circumferential limit hole 52 and cooperates with the second connecting hole 61. The first connecting rod 71 is movable in the circumferential direction of the first connecting plate 5 in the first circumferential long hole, and the first connecting rod 71 is movable in the circumferential direction of the first connecting plate 5 in the first circumferential long hole. The two connecting rods 72 pass through the second long circumferential limiting hole 62 and cooperate with the first connecting hole 51 . The second connecting rod 72 is movable along the circumferential direction of the second connecting plate 6 in the second circumferential long hole.

When the first connecting plate 5 and the second connecting plate 6 rotate relative to each other, the first connecting plate 5 drives the second connecting rod 72 to move in the second circumferential limiting long hole 62 , and the second connecting plate 6 drives the first connecting The rod 71 moves within the first circumferential limiting long hole 52 . When the connecting piece 7 moves to either end of the first circumferential limit slot 52 or the second circumferential limit slot 62, the first connecting plate 5 and the second connecting plate 6 reach the limit position, that is, they can no longer continue relative to each other. Therefore, the first vehicle body 1 and the second vehicle body 2 cannot continue to rotate relative to each other, thereby achieving the purpose of limiting.

As shown in FIG. 4 , in some embodiments, the first connecting rod 71 and the second connecting rod 72 are bolts, such as single-headed bolts, ie, only one end has a thread, and the other end is a nut. The first connecting hole 51 and the second connecting hole 61 are threaded holes, the first connecting rod 71 passes through the first circumferential limiting long hole 52 to be threaded with the second connecting hole 61, and the second connecting rod 72 passes through the second connecting rod 72. The circumferential limiting long hole is screwed with the first connecting hole 51 .

The opposite side of the first connecting plate 5 and the second connecting plate 6 is provided with a threaded hole, and the opposite side of the second connecting plate 6 and the first connecting plate 5 is provided with a threaded hole. In other words, the first connecting rod passes through from the outside. Passing through the first connecting plate 5 and matching with the threaded holes on the second connecting plate 6, the second connecting rod 72 passes through the second connecting plate 6 from the outside and is matched with the threaded holes on the first connecting plate 5. Here, The outside refers to the side of the first connection pad 5 away from the second connection pad 6 and the side of the second connection pad 6 away from the first connection pad 5 . The balance car of this embodiment adopts the way of bolts and threads, which is simple in structure and convenient in installation.

As shown in FIG. 5 , in some embodiments, the first connecting rod 71 and the second connecting rod 72 are stud bolts, the first connecting hole 51 and the second connecting hole 61 are through holes, and the first connecting rod 71 One end protrudes from the first circumferentially long hole and fits with the nut, the second end of the first connecting rod 71 protrudes from the second connecting hole 61 and fits with the nut, and the first end of the second connecting rod 72 extends from the second connecting rod 72. The circumferentially long hole protrudes and fits with the nut, and the second end of the second connecting rod 72 protrudes from the first connecting hole 51 and fits with the nut. In other words, the two connecting rods are both stud bolts, and both pass through the first connecting plate 5 and the second connecting plate 6 . The first connecting rod 71 passes through the first circumferential limit slot 52 and the second connecting hole 61 , the second connecting rod 72 passes through the second circumferential limit slot 62 and the first connecting hole 51 , and the first connecting rod Both ends of the connecting rod 71 and the second connecting rod 72 are provided with nuts to be fixed on the first connecting plate 5 and the second connecting plate 6 .

In this embodiment, a stud bolt is used as the connecting piece 7, and there is no need to open threaded holes on the first connecting plate 5 and the second connecting plate 6, but only through holes, which is simpler in processing, simple in structure and convenient in installation. .

As shown in FIG. 6 , in some specific embodiments, the first connecting hole 51 and the first circumferential limiting long hole 52 are both one and opposite in the radial direction of the first connecting plate 5 . The two circumferential limiting long holes 62 are both one and opposite in the radial direction of the second connecting plate 6 .

In some embodiments, the first connecting plate 5 is provided with a connecting hole, the second connecting plate 6 is provided with a circumferential limiting long hole (not shown) extending along the circumferential direction of the second connecting plate 6 , and the connecting member 7 is The connecting rod passes through the long circumferential limiting hole and cooperates with the first connecting hole 51 , and the connecting rod is movable along the circumferential direction of the second connecting plate 6 in the long circumferential hole.

In some embodiments, the connecting rod is a bolt, the connecting hole is a threaded hole, and the connecting rod passes through the circumferential limit long hole and is threadedly matched with the connecting hole. The bolt here refers to a single-headed bolt. Of course, the connecting rod can also be used Stud bolts, as long as they can play the role of connection and limit.

In some embodiments, a first boss 53 is provided on the inner surface of the first connecting plate 5 facing the second connecting plate 6 , the first boss 53 is provided with a first connecting hole 51 , and the first connecting plate 5 is provided with a first boss 53 . The first circumferential limiting long hole 52 extends along the circumferential direction of the first connecting plate 5 .

A second boss 63 is provided on the inner surface of the second connecting plate 6 facing the first connecting plate 5 , a second connecting hole 61 is formed on the second boss 63 , and the first connecting plate 5 is provided along the first connecting plate The first circumferential limit slot 52 extending in the circumferential direction of the 6 is movable in the circumferential direction, and the second boss 63 is fitted in the first circumferential limiting long hole 52 and is movable along the circumferential direction of the first connecting plate 5 in the first circumferential limiting long hole 52 .

The connecting piece 7 includes a first bolt 73 and a second bolt 74 . The first bolt 73 protrudes from the outer side of the first connecting plate 5 and is screwed into the second connecting hole 61 , and the second bolt 74 extends from the second connecting plate 6 . The outer side surface of the connector extends into and is screwed into the first connection hole 51 .

In this embodiment, a first boss 53 and a second boss 63 are respectively provided on the first connection plate 5 and the second connection plate 6 , the first boss 53 has a first connection hole 51 , and the second boss 63 It has a second connection hole 61 , a first bolt 73 protrudes from the outer side of the first connection plate 5 and is screwed into the second connection hole 61 , and a second bolt 74 extends from the outer side of the second connection plate 6 and is threaded Fitted in the first connecting hole 51 . The first boss 53 and the second boss 63 are fitted in the second circumferential limiting slot 62 and the first circumferential limiting slot 52 respectively through the connector 7, so the connection reliability and strength are improved, and the The safety of the balance car.

In some specific embodiments, the first boss 53 and the first long circumferential limit hole 52 are both one and opposite in the radial direction of the first connecting plate 5 , and the second boss 63 and the second long limit hole are both The number of the first bolts 73 and the second bolts 74 is two, and the first connection holes 51 and the second connection holes 61 are both two. The outer side of a connecting plate 5 protrudes through the first blocking piece 75 and is screwed into the second connecting hole 61 , and the second bolt 74 protrudes from the outer side of the second connecting disk 6 through the second blocking piece 76 and is threaded into the second connecting hole 61 . The threads are fitted in the first connection holes 51 .

The first blocking piece 75 prevents the first bolt 73 from axially escaping from the first circumferential limiting slot 52 , and the second blocking piece 76 prevents the second bolt 74 from axially escaping from the second circumferential limiting slot 62 . The first bolt 73 and the second bolt 74 are two, which can prevent the first blocking piece 75 and the second blocking piece 76 from rotating, which affects the use effect.

In some embodiments, a boss is provided on the inner surface of the first connecting plate 5 facing the second connecting plate 6 , the boss is provided with a connecting hole, and the second connecting plate 6 is provided with a circumferential direction of the second connecting plate 6 . The extended circumferential limit long hole, the boss is fitted in the circumferential limit long hole and can move along the circumferential direction of the second connecting plate 6 in the circumferential limit long hole, the connecting piece 7 is a bolt, and the bolt from the first The outer sides of the two connecting discs 6 are protruded into and screwed into the connecting holes.

Further, in this embodiment, there are two bosses and they are opposite in the radial direction of the first connecting plate 5 , and there are two circumferential limiting long holes and they are opposite in the radial direction of the second connecting plate 6 . The position-limiting long holes are in a one-to-one relationship, so that the first connecting plate 5 can rotate relative to the second connecting plate 6 . In this way, the limit relationship can also be satisfied, and the rotation relationship is not affected.

In some embodiments, a first installation groove is formed on the lower surface of the first vehicle body 1 , a second installation groove is formed on the lower surface of the second vehicle body 2 , and the first axle 31 is pressed against the first installation by the first pressing plate 32 . In the groove, the second axle 41 is pressed into the second installation groove by the second pressing plate 42 .

The structure of the first pressing plate 32 and the second pressing plate 42 are the same, and the middle parts are both “U” shaped, which are used to abut the first axle 31 and the second axle 41, and both ends of the first pressing plate 32 and the second pressing plate 42 have mounting plates. , the mounting plate is provided with through holes for bolts to pass through, the first pressure plate 32 and the second pressure plate 42 are respectively fixed on the lower surfaces of the first vehicle body 1 and the second vehicle body 2 through the bolts, and the first axle 31 and the second axle 41 are fixed in the first installation groove and the second installation groove, and an axial limit device should also be provided at the ends of the first axle 31 and the second axle 41 .

In some embodiments, the first wheel 3 includes a first in-wheel motor, the second wheel 4 includes a second in-wheel motor, the first in-wheel motor has a first motor shaft, the second in-wheel motor has a second motor shaft, and the first motor shaft The first axle 31 is formed, and the second motor shaft is formed as the second axle 41 . The bodies of the first in-wheel motor and the second in-wheel motor are respectively arranged on the outer sides of the first vehicle body 1 and the second vehicle body 2 , and the first motor shaft and the second motor shaft are opposite to the first vehicle body 1 and the second vehicle body 2 Fixed, the rotation of the first in-wheel motor and the second in-wheel motor drives the first vehicle body 1 and the second vehicle body 2 to move.

In some embodiments, a limit washer 8 is provided between the first connection plate 5 and the second connection plate 6, and the limit washer 8 is arranged between the first connection plate 5 and the second connection plate 6 to reduce the The friction loss generated when the first connecting plate 5 and the second connecting plate 6 are twisted relative to each other, the gasket has through holes corresponding to the circumferential limit long holes, and the number and shape of the through holes are based on the circumferential limit length. The number and shape of the holes are determined for the connecting piece 7 to pass through, so as to avoid affecting the relative rotation of the vehicle body.

The balance vehicle according to some specific examples of the present invention will be described below with reference to FIGS. 1-3 .

The balance car includes a first wheel 3, a second wheel 4, a first vehicle body 1, a second vehicle body 2 and a connecting piece 7, the first wheel 3 has a first axle 31, the second wheel 4 has a second axle 41, and the first wheel 3 has a first axle 31. A vehicle body 1 is mounted on the first axle 31, the second vehicle body 2 is mounted on the second axle 41, the first vehicle body 1 has a first connecting plate 5, the second vehicle body 2 has a second connecting plate 6, and the second vehicle body 2 has a second connecting plate 6. A connecting plate 5 and a second connecting plate 6 are coaxially and oppositely disposed, and are connected by a connecting member 7 , and the first connecting plate 5 is rotatable relative to the second connecting plate 6 .

The first connecting plate 5 is provided with a first circumferential limiting long hole 52 and a first connecting hole 51, and the second connecting plate 6 is provided with a second circumferential limiting long hole 62 and a second connecting hole 61. The first connecting hole 51 and the first long circumferential limit hole 52 are both one and opposite in the radial direction of the first connecting plate 5, and both the second connecting hole 61 and the second long circumferential limit hole 62 are one and are located in the second connecting plate 5. 6 are radially opposite.

The connecting piece 7 includes a first connecting rod 71 and a second connecting rod 72, and the first connecting rod 71 and the second connecting rod 72 are both bolts, the first connecting hole 51 and the second connecting hole 61 are threaded holes, and the first connecting rod 71 and the second connecting rod 72 are threaded holes. The rod 71 passes through the first long circumferential limit hole 52 to be threadedly matched with the second connecting hole 61. The first connecting rod 71 is movable along the circumferential direction of the first connecting plate 5 in the first circumferential long hole, and the second The connecting rod 72 passes through the second circumferential limiting long hole and is threadedly engaged with the first connecting hole 51 , and the second connecting rod 72 is movable in the circumferential direction of the second connecting plate 6 in the second circumferential long hole.

The first wheel 3 includes a first in-wheel motor, the second wheel 4 includes a second in-wheel motor, the first in-wheel motor has a first motor shaft, the second in-wheel motor has a second motor shaft, and the first motor shaft constitutes a first wheel shaft 31 , The second motor shaft constitutes the second axle 41 . The bodies of the first in-wheel motor and the second in-wheel motor are respectively arranged on the outer sides of the first vehicle body 1 and the second vehicle body 2 . The lower surface of the first vehicle body 1 is provided with a first installation groove, the lower surface of the second vehicle body 2 is provided with a second installation groove, the first axle 31 is pressed into the first installation groove by the first pressing plate 32, and the second axle 41 is pressed into the second installation groove by the second pressing plate 42 .

There is also a limit washer 8 between the first connection plate 5 and the second connection plate 6, the limit washer 8 is arranged between the first connection plate 5 and the second connection plate 6, and the limit washer 8 has To the slotted hole corresponding to the limit slotted hole.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Rear, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial, The orientations or positional relationships indicated by "radial direction", "circumferential direction", etc. are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated devices or elements. It must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two components or the interaction relationship between the two components, unless otherwise expressly qualified. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In this disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" and the like mean a specific feature, structure, material, or description described in connection with the embodiment or example. Features are included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Embodiments are subject to variations, modifications, substitutions and variations.

Claims (15)

1. a balance car, is characterized in that, comprises: a first wheel and a second wheel, the first wheel having a first axle and the second wheel having a second axle; A first vehicle body and a second vehicle body, the first vehicle body is mounted on the first axle, the second vehicle body is mounted on the second axle, the first vehicle body has a first connection a plate, the second body has a second connection plate; A connecting piece, the first connecting plate and the second connecting plate are connected through the connecting piece, and the first connecting plate can be rotated by a predetermined angle relative to the second connecting plate. 2 . The balance vehicle according to claim 1 , wherein the first connecting plate is provided with a first connecting hole and a first circumferential limiting long hole extending along the circumferential direction of the first connecting plate, 2 . The second connecting plate is provided with a second connecting hole and a second circumferential limiting long hole extending along the circumferential direction of the second connecting plate, The connecting piece includes a first connecting rod and a second connecting rod, the first connecting rod passes through the first circumferential limiting long hole and is matched with the second connecting hole, and the first connecting rod is in the The first circumferential long hole is movable along the circumferential direction of the first connecting plate, and the second connecting rod passes through the second circumferential limiting long hole and is matched with the first connecting hole, The second connecting rod is movable in the circumferential direction of the second connecting plate in the second circumferentially long hole. 3. The balance car according to claim 2, wherein the first connecting rod and the second connecting rod are bolts, the first connecting hole and the second connecting hole are threaded holes, and the The first connecting rod passes through the first circumferential limiting long hole to be threadedly matched with the second connecting hole, and the second connecting rod passes through the second circumferential limiting long hole and is connected to the second connecting rod. A connecting hole is threaded. 4 . The balance car according to claim 2 , wherein the first connecting rod and the second connecting rod are stud bolts, and the first connecting hole and the second connecting hole are through holes. 5 . , the first end of the first connecting rod protrudes from the first circumferential limit long hole and is matched with the nut, and the second end of the first connecting rod protrudes from the second connecting hole and cooperates with the nut nut fit, The first end of the second connecting rod protrudes from the second circumferential limiting long hole and is matched with the nut, and the second end of the second connecting rod protrudes from the first connecting hole and is matched with the nut Cooperate. 5 . The balance car according to claim 2 , wherein the first connecting hole and the first circumferential limiting long hole are both one and are opposite to each other in the radial direction of the first connecting plate. 5 . Both the second connecting hole and the second circumferential limiting long hole are one and are opposite to each other in the radial direction of the second connecting plate. 6 . The balance vehicle according to claim 5 , wherein the first connecting rod and the second connecting rod are both one. 7 . 7 . The balance vehicle according to claim 1 , wherein the first connecting plate is provided with a connecting hole, and the second connecting plate is provided with a circumferential limit extending along the circumferential direction of the second connecting plate. 8 . bit slot, The connecting piece is a connecting rod, the connecting rod passes through the long circumferential limit hole and is matched with the connecting hole, and the connecting rod is in the circumferential long hole in the circumferential direction of the second connecting plate it can move. 8 . The balance car according to claim 7 , wherein the connecting rod is a bolt, the connecting hole is a threaded hole, and the connecting rod passes through the circumferential limit long hole to be connected with the Hole thread fit. 9 . The balance car according to claim 1 , wherein a first boss is provided on the inner side of the first connecting plate facing the second connecting plate, and the first boss is provided with a first boss. 10 . a connecting hole, the first connecting plate is provided with a first circumferential limiting long hole extending along the circumferential direction of the first connecting plate, The inner surface of the second connection plate facing the first connection plate is provided with a second boss, the second boss is provided with a second connection hole, and the first connection plate is provided with an edge along the the circumferentially extending first circumferential limiting long hole of the first connecting plate, The first boss is fitted in the second circumferential limit long hole and is movable along the circumferential direction of the second connecting plate in the second circumferential limit long hole, and the second protrusion The stage is fitted in the first circumferential limiting long hole and is movable along the circumferential direction of the first connecting plate in the first circumferential limiting long hole, The connecting piece includes a first bolt and a second bolt, the first bolt extends from the outer side of the first connecting plate and is screwed into the second connecting hole, and the second bolt extends from the second connecting hole. The outer side surface of the second connection plate is protruded into and screwed into the first connection hole. 10 . The balance car according to claim 9 , wherein the first boss and the first circumferential limiting long hole are both one and are opposite to each other in the radial direction of the first connecting plate. The second boss and the second circumferential limiting long hole are both one and opposite in the radial direction of the second connecting plate, Both the first bolt and the second bolt are two, the first connecting hole and the second connecting hole are two, and the first bolt passes through the outer side of the first connecting plate. The second bolt extends into the second connecting hole from the outer side of the second connecting plate and passes through the second blocking plate and is screwed into the first connecting plate. in the connection hole. 11 . The balance car according to claim 1 , wherein a boss is provided on the inner side of the first connecting plate facing the second connecting plate, and the boss is provided with a connecting hole, 11 . The second connecting plate is provided with a circumferential limiting long hole extending along the circumferential direction of the second connecting plate, The boss is fitted in the long circumferential limit hole and is movable in the circumferential direction of the second connecting plate in the circumferential limit long hole, The connecting piece is a bolt, and the bolt extends from the outer side of the second connecting plate and is screwed into the connecting hole. 12 . The balance vehicle according to claim 11 , wherein the number of the bosses is two and is opposite to the radial direction of the first connecting plate, and the number of the circumferential limit long holes is two and is located in the The second connecting discs are opposite in the radial direction. 13 . The balance car according to claim 1 , wherein a first installation groove is formed on the lower surface of the first vehicle body, a second installation groove is formed on the lower surface of the second vehicle body, and the The first axle is pressed in the first installation groove by the first pressing plate, and the second axle is pressed in the second installation groove by the second pressing plate. 14 . The balance car according to claim 1 , wherein the first wheel comprises a first in-wheel motor, the second wheel comprises a second in-wheel motor, and the first motor shaft of the first in-wheel motor is constituted by a first motor shaft. 15 . The first axle and the second motor shaft of the second in-wheel motor constitute the second axle. 15. The balance car according to any one of claims 1-14, characterized in that, a limit washer is provided between the first connecting plate and the second connecting plate.

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