CN212685826U - Balance vehicle - Google Patents

Abstract

The utility model discloses a balance car, balance car includes first wheel, second wheel, first automobile body, second automobile body and connecting piece, first wheel has first shaft, the second wheel has the second shaft, first automobile body is installed first epaxial, the second automobile body is installed second epaxial, first automobile body has first connection pad, the second automobile body has the second connection pad, first connection pad with the second connection pad passes through the connecting piece links to each other just first connection pad for the rotatable predetermined angle of second connection pad. The utility model discloses balance car connecting device simple structure, the good reliability to can adjust steering range in a flexible way, application scope is wide.

Description

Balance vehicle

Technical Field

The application relates to the technical field of travel tools, in particular to a balance car.

Background

The balance car is a daily tool for riding instead of walk, and a common balance car finishes steering by relatively twisting a car body pedal, so the balance car is also called a swing car. The balance car comprises a left car body (pedal), a right car body (pedal), a left wheel and a right wheel, wherein the left car body and the right car body are connected through a connecting device, in the related art, the balance car controls the steering amplitude through the connecting device, but the connecting device of the balance car is complex in structure, poor in straight-line traveling maintaining capacity and not suitable for daily walking replacement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the embodiment of the utility model provides a balance car, this balance car's connecting device simple structure to can adjust steering range in a flexible way, application scope is wide.

According to the utility model discloses balance car includes first wheel, second wheel, first automobile body, second automobile body and connecting piece, first wheel has first shaft, the second wheel has the second shaft, first automobile body is installed first epaxial, the second automobile body is installed second epaxial, first automobile body has first connection pad, the second automobile body has the second connection pad, first connection pad with the second connection pad passes through the connecting piece links to each other just first connection pad for the rotatable predetermined angle of second connection pad.

According to the utility model discloses balance car, first automobile body links to each other through first connection pad, second connection pad and connecting piece with the second automobile body, and when first automobile body and second automobile body rotated relatively, through first connection pad and second connection pad and connecting piece, can inject the turned angle of first automobile body and second automobile body in the predetermined angle within range, predetermined angle can be confirmed according to concrete design and needs, the utility model discloses a balance car only connects and rotates spacingly, simple structure, good reliability first automobile body and second automobile body through two connection pads and connecting piece.

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

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, the first connecting rod passes through the first circumferential long limiting hole to be in threaded fit with the second connecting hole, and the second connecting rod passes through the second circumferential long limiting hole to be in threaded fit 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, a first end of the first connecting rod extends out of the first circumferential limiting long hole and is matched with a nut, a second end of the first connecting rod extends out of the second connecting hole and is matched with a nut, a first end of the second connecting rod extends out of the second circumferential limiting long hole and is matched with a nut, and a second end of the second connecting rod extends out of the first connecting hole and is matched with a nut.

In some embodiments, the first connection hole and the first circumferential limit long hole are both one and opposed to each other in the radial direction of the first connection plate, and the second connection hole and the second circumferential limit long hole are both one and opposed to each other in the radial direction of the second connection plate.

In some embodiments, the first and second connecting rods are each one.

In some embodiments, the first connecting disc is provided with a connecting hole, the second connecting disc is provided with a circumferential limiting long hole extending along the circumferential direction of the second connecting disc, the connecting piece is a connecting rod, the connecting rod penetrates through the circumferential limiting long hole and is matched with the connecting hole, and the connecting rod is movable in the circumferential long hole along the circumferential direction of the second connecting disc.

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 be in threaded fit with the connecting hole.

In some embodiments, a first boss is provided on an inner side surface of the first connection plate facing the second connection plate, the first boss is provided with a first connection hole, the first connection plate is provided with a first circumferential limiting long hole extending in a circumferential direction of the first connection plate, a second boss is provided on an inner side surface of the second connection plate facing the first connection plate, the second boss is provided with a second connection hole, the first connection plate is provided with a first circumferential limiting long hole extending in the circumferential direction of the first connection plate, the first boss is fitted in the second circumferential limiting long hole and is movable in the circumferential direction of the second connection plate in the second circumferential limiting long hole, the second boss is fitted in the first circumferential limiting long hole and is movable in the circumferential direction of the first connection plate in the first circumferential limiting long hole, the connection member includes a first bolt and a second bolt, the first bolt extends into the second connecting hole from the outer side face of the first connecting disc and is in threaded fit with the second connecting hole, and the second bolt extends into the first connecting hole from the outer side face of the second connecting disc and is in threaded fit with the first connecting hole.

In some embodiments, 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 disc, the second boss and the second circumferential limiting long hole are both one and are opposite to each other in the radial direction of the second connecting disc, the first bolt and the second bolt are both two, the first connecting hole and the second connecting hole are both two, the first bolt penetrates through the first blocking piece from the outer side surface of the first connecting disc and extends into the second connecting hole in a threaded manner, and the second bolt penetrates through the second blocking piece from the outer side surface of the second connecting disc and extends into the second connecting hole in a threaded manner.

In some embodiments, a boss is arranged on the inner side surface of the first connecting disc facing the second connecting disc, the boss is provided with a connecting hole, the second connecting disc is provided with a circumferential limiting long hole extending along the circumferential direction of the second connecting disc, the boss is matched in the circumferential limiting long hole and can move along the circumferential direction of the second connecting disc in the circumferential limiting long hole, the connecting piece is a bolt, and the bolt extends into the connecting hole from the outer side surface of the second connecting disc and is in threaded fit with the connecting hole.

In some embodiments, the bosses are two and opposite to each other in the radial direction of the first connecting plate, and the circumferential limiting long holes are two and opposite to each other in the radial direction of the second connecting plate.

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

In some embodiments, the first wheel comprises a first in-wheel motor and the second wheel comprises a second in-wheel motor, a first motor shaft of the first in-wheel motor constituting the first axle and a second motor shaft of the second in-wheel motor constituting the second axle.

In some embodiments, a limiting gasket is arranged between the first connecting disc and the second connecting disc.

Drawings

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

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

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

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

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

FIG. 6 is a partial schematic view of the balance vehicle shown in FIG. 5;

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

FIG. 8 is an enlarged partial view of the balance car of FIG. 7;

FIG. 9 is a partial schematic view of the balance car of FIG. 7;

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

In the figure:

the first vehicle body 1 is provided with a first vehicle body,

the second vehicle body 2 is provided with a first vehicle body,

the first wheel 3, the first axle 31, the first presser plate 32,

the second wheel 4, the second wheel shaft 41, the second presser plate 42,

a first connection plate 5, a first connection hole 51, a first circumferential limit long hole 52, a first boss 53,

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

the connecting member 7, the first connecting rod 71, the second connecting rod 72, the first bolt 73, the second bolt 74, the first stopper 75, the second stopper 76,

and a limiting gasket 8.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the balance car according to the embodiment of the present invention includes a first wheel 3, a second wheel 4, a first car body 1, a second car body 2 and a connecting member 7, the first wheel 3 has a first wheel shaft 31, the second wheel 4 has a second wheel shaft 41, the first car body 1 is mounted on the first wheel shaft 31, the second car body 2 is mounted on the second wheel shaft 41, the first car body 1 has a first connecting plate 5, the second car body 2 has a second connecting plate 6, the first connecting plate 5 and the second connecting plate 6 are connected by the connecting member 7, and the first connecting plate 5 is rotatable by a predetermined angle relative to the second connecting plate 6.

According to the utility model discloses balance car, through first connection pad 5, second connection pad 6 and connecting piece 7, when first automobile body 1 and second automobile body 2 rotate relatively, can restrict relative angle of rotation at predetermined angle within range, predetermined angle can be confirmed according to concrete design and needs. According to the utility model discloses balance car is connected and spacing, simple structure, good reliability to first automobile body 1 and second automobile body 2 through two connection pads and connecting piece 7.

As shown in fig. 3 and 4, in some embodiments, the first connection plate 5 is provided with a first connection hole 51 and a first circumferential limit long hole 52 extending in a circumferential direction of the first connection plate 5, the second connection plate 6 is provided with a second connection hole 61 and a second circumferential limit long hole 62 extending in a circumferential direction of the second connection plate 6, the connection member 7 includes a first connection rod 71 and a second connection rod 72, the first connection rod 71 passes through the first circumferential limit long hole 52 and is engaged with the second connection hole 61, the first connection rod 71 is movable in the circumferential direction of the first connection plate 5 in the first circumferential long hole, the second connection rod 72 passes through the second circumferential limit long hole 62 and is engaged with the first connection hole 51, and the second connection rod 72 is movable in the circumferential direction of the second connection plate 6 in the second circumferential long hole.

When the first connecting disc 5 and the second connecting disc 6 rotate relatively, the first connecting disc 5 drives the second connecting rod 72 to move in the second circumferential limiting long hole 62, and the second connecting disc 6 drives the first connecting rod 71 to move in the first circumferential limiting long hole 52. When the connecting member 7 moves to either one end of the first circumferential long hole 52 or the second circumferential long hole 62, the first connecting plate 5 and the second connecting plate 6 reach the limit position, i.e., cannot rotate relative to each other any more, and therefore the first vehicle body 1 and the second vehicle body 2 cannot rotate relative to each other any more, so as to achieve 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, i.e., bolts with threads on only one end and nuts on the other end. The first connection hole 51 and the second connection hole 61 are threaded holes, the first connection rod 71 passes through the first circumferential limit long hole 52 to be in threaded fit with the second connection hole 61, and the second connection rod 72 passes through the second circumferential limit long hole to be in threaded fit with the first connection hole 51.

The side of the first connecting disc 5 opposite to the second connecting disc 6 is provided with a threaded hole, the side of the second connecting disc 6 opposite to the first connecting disc 5 is provided with a threaded hole, in other words, the first connecting rod passes through the first connecting disc 5 from the outside and is matched with the threaded hole on the second connecting disc 6, the second connecting rod 72 passes through the second connecting disc 6 from the outside and is matched with the threaded hole on the first connecting disc 5, wherein the outside refers to the side of the first connecting disc 5 far away from the second connecting disc 6 and the side of the second connecting disc 6 far away from the first connecting disc 5. The balance car of this embodiment has adopted bolt and screw-thread fit's mode, simple structure, simple to operate.

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, a first end of the first connecting rod 71 extends from the first circumferential long hole and is engaged with the nut, a second end of the first connecting rod 71 extends from the second connecting hole 61 and is engaged with the nut, a first end of the second connecting rod 72 extends from the second circumferential long hole and is engaged with the nut, and a second end of the second connecting rod 72 extends from the first connecting hole 51 and is engaged with the nut. In other words, both connecting rods are stud bolts, both penetrating the first connecting disc 5 and the second connecting disc 6. The first connecting rod 71 penetrates through the first circumferential limiting long hole 52 and the second connecting hole 61, the second connecting rod 72 penetrates through the second circumferential limiting long hole 62 and the first connecting hole 51, and nuts are arranged at two ends of the first connecting rod 71 and the second connecting rod 72 to be fixed on the first connecting disc 5 and the second connecting disc 6.

In this embodiment, adopt stud as connecting piece 7, need not to set up the screw hole on first connection pad 5 and second connection pad 6, only need set up the through-hole can, processing is simpler, simple structure and simple to operate.

As shown in fig. 6, in some embodiments, each of the first connection hole 51 and the first circumferential limit long hole 52 is one and is opposed to each other in the radial direction of the first connection plate 5, and each of the second connection hole 61 and the second circumferential limit long hole 62 is one and is opposed to each other in the radial direction of the second connection plate 6.

In some embodiments, the first connection plate 5 is provided with a connection hole, the second connection plate 6 is provided with a circumferential limit long hole (not shown) extending in the circumferential direction of the second connection plate 6, the connection member 7 is a connection rod passing through the circumferential limit long hole and engaging with the first connection hole 51, and the connection rod is movable in the circumferential long hole in the circumferential direction of the second connection plate 6.

In some embodiments, the connecting rod is a bolt, the connecting hole is a threaded hole, the connecting rod passes through the circumferential limiting long hole to be in threaded fit with the connecting hole, the bolt is specially a single-head bolt, and of course, the connecting rod can also be a double-head bolt as long as the connecting and limiting effects can be achieved.

In some embodiments, a first boss 53 is provided on an inner side surface of the first connection plate 5 facing the second connection plate 6, the first boss 53 is provided with a first connection hole 51, and the first connection plate 5 is provided with a first circumferential limiting long hole 52 extending in a circumferential direction of the first connection plate 5.

The inner side face, facing the first connecting disc 5, of the second connecting disc 6 is provided with a second boss 63, the second boss 63 is provided with a second connecting hole 61, the first connecting disc 5 is provided with a first circumferential limiting long hole 52 extending along the circumferential direction of the first connecting disc 5, the first boss 53 is matched in the second circumferential limiting long hole 62 and can move along the circumferential direction of the second connecting disc 6 in the second circumferential limiting long hole 62, and the second boss 63 is matched in the first circumferential limiting long hole 52 and can move along the circumferential direction of the first connecting disc 5 in the first circumferential limiting long hole 52.

The connecting member 7 includes a first bolt 73 and a second bolt 74, the first bolt 73 extending from the outer side surface of the first connecting plate 5 and being screw-fitted in the second connecting hole 61, and the second bolt 74 extending from the outer side surface of the second connecting plate 6 and being screw-fitted in the first connecting hole 51.

In this embodiment, the first land 5 and the second land 6 are respectively provided with a first boss 53 and a second boss 63, the first boss 53 has a first connection hole 51, the second boss 63 has a second connection hole 61, a first bolt 73 extends from the outer side surface of the first land 5 and is screwed into the second connection hole 61, and a second bolt 74 extends from the outer side surface of the second land 6 and is screwed into the first connection hole 51. The first boss 53 and the second boss 63 are respectively matched in the second circumferential limiting long hole 62 and the first circumferential limiting long hole 52 through the connecting piece 7, so that the connection reliability and strength are improved, and the safety of the balance car is improved.

In some embodiments, the first boss 53 and the first circumferential limiting long hole 52 are both one and are opposite to each other in the radial direction of the first connecting disc 5, the second boss 63 and the second limiting long hole are both one and are opposite to each other in the radial direction of the second connecting disc 6, the first bolt 73 and the second bolt 74 are both two, the first connecting hole 51 and the second connecting hole 61 are both two, the first bolt 73 penetrates through the first blocking piece 75 from the outer side surface of the first connecting disc 5 and extends into and is in threaded fit with the second connecting hole 61, and the second bolt 74 penetrates through the second blocking piece 76 from the outer side surface of the second connecting disc 6 and extends into and is in threaded fit with the first connecting hole 51.

The first blocking piece 75 prevents the first bolt 73 from axially coming out of the first circumferential long limiting hole 52, the second blocking piece 76 prevents the second bolt 74 from axially coming out of the second circumferential long limiting hole 62, and the first bolt 73 and the second bolt 74 are both two, so that the first blocking piece 75 and the second blocking piece 76 can be prevented from rotating, and the using effect is prevented from being influenced.

In some embodiments, a boss is provided on an inner side surface of the first connecting plate 5 facing the second connecting plate 6, the boss is provided with a connecting hole, the second connecting plate 6 is provided with a circumferential limiting long hole extending in the circumferential direction of the second connecting plate 6, the boss is fitted in the circumferential limiting long hole and is movable in the circumferential limiting long hole in the circumferential direction of the second connecting plate 6, the connecting member 7 is a bolt, and the bolt extends from the outer side surface of the second connecting plate 6 and is screwed in the connecting hole.

Further, the number of the bosses in this embodiment is two, and the bosses are opposite to each other in the radial direction of the first connecting disc 5, the number of the circumferential limiting long holes is two, and the bosses are opposite to each other in the radial direction of the second connecting disc 6, and the bosses and the circumferential limiting long holes are in a one-to-one correspondence relationship, so that the first connecting disc 5 can rotate relative to the second connecting disc 6. So set up, can satisfy spacing relation equally to do not influence the relation of rotation.

In some embodiments, the lower surface of the first vehicle body 1 is provided with a first mounting groove, the lower surface of the second vehicle body 2 is provided with a second mounting groove, the first axle 31 is pressed in the first mounting groove by the first pressing plate 32, and the second axle 41 is pressed in the second mounting groove by the second pressing plate 42.

The first pressure plate 32 and the second pressure plate 42 have the same structure, the middle part of the first pressure plate 32 and the second pressure plate 42 is U-shaped and is used for abutting against the first wheel shaft 31 and the second wheel shaft 41, mounting plates are arranged at two ends of the first pressure plate 32 and the second pressure plate 42, through holes are formed in the mounting plates and are used for allowing 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, the first wheel shaft 31 and the second wheel shaft 41 are fixed in the first mounting groove and the second mounting groove, and axial limiting devices are arranged at the end parts of the first wheel shaft 31 and the second wheel shaft 41.

In some embodiments, the first wheel 3 comprises a first in-wheel motor having a first motor shaft, and the second wheel 4 comprises a second in-wheel motor having a second motor shaft, the first motor shaft constituting the first axle 31 and the second motor shaft constituting said second axle 41. The machine 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 first motor shaft and the second motor shaft are relatively fixed with the first vehicle body 1 and the second vehicle body 2, and the first in-wheel motor and the second in-wheel motor rotate to drive the first vehicle body 1 and the second vehicle body 2 to move.

In some embodiments, a limiting gasket 8 is arranged between the first connecting disc 5 and the second connecting disc 6, the limiting gasket 8 is arranged between the first connecting disc 5 and the second connecting disc 6 and used for reducing friction loss generated when the first connecting disc 5 and the second connecting disc 6 are twisted relatively, through holes corresponding to the circumferential limiting long holes are formed in the gasket, the number and the shape of the through holes are determined according to the number and the shape of the circumferential limiting long holes and used for the connecting pieces 7 to pass through, and influence on relative rotation of the vehicle body is avoided.

A balance car according to some specific examples of the present invention will be described below with reference to fig. 1 to 3.

The balance car comprises a first wheel 3, a second wheel 4, a first car body 1, a second car body 2 and a connecting piece 7, wherein the first wheel 3 is provided with a first wheel shaft 31, the second wheel 4 is provided with a second wheel shaft 41, the first car body 1 is installed on the first wheel shaft 31, the second car body 2 is installed on the second wheel shaft 41, the first car body 1 is provided with a first connecting disc 5, the second car body 2 is provided with a second connecting disc 6, the first connecting disc 5 and the second connecting disc 6 are coaxially and oppositely arranged and are connected through the connecting piece 7, and the first connecting disc 5 can rotate relative to the second connecting disc 6.

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

The connecting member 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, the first connecting rod 71 passes through the first circumferential limit long hole 52 to be in threaded fit with the second connecting hole 61, the first connecting rod 71 is movable in the first circumferential long hole along the circumferential direction of the first connecting disc 5, the second connecting rod 72 passes through the second circumferential limit long hole to be in threaded fit with the first connecting hole 51, and the second connecting rod 72 is movable in the second circumferential long hole along the circumferential direction of the second connecting disc 6.

The first wheel 3 comprises a first in-wheel motor having a first motor shaft and the second wheel 4 comprises a second in-wheel motor having a second motor shaft, the first motor shaft constituting the first wheel axle 31 and the second motor shaft constituting said second wheel axle 41. 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 mounting groove, the lower surface of the second vehicle body 2 is provided with a second mounting groove, the first wheel axle 31 is pressed in the first mounting groove by the first pressing plate 32, and the second wheel axle 41 is pressed in the second mounting groove by the second pressing plate 42.

Still be equipped with spacing gasket 8 between first connection pad 5 and the second connection pad 6, spacing gasket 8 is established between first connection pad 5 and second connection pad 6, and spacing gasket 8 has the slot hole corresponding with the spacing slot hole of circumference.

In the description of the present invention, it is to 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", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (15)

1. A balance car, characterized by comprising: the vehicle body comprises a first wheel, a second wheel, a first vehicle body, a second vehicle 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 vehicle body is installed on the first wheel shaft, the second vehicle body is installed on the second wheel shaft, the first vehicle body is provided with a first connecting disc, the second vehicle 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.

2. The balance car of claim 1, wherein the first connection plate is provided with a first connection hole and a first circumferential limit long hole extending in a circumferential direction of the first connection plate, the second connection plate is provided with a second connection hole and a second circumferential limit long hole extending in a circumferential direction of the second connection plate,

the connecting piece comprises a first connecting rod and a second connecting rod, the first connecting rod penetrates through the first circumferential limiting long hole and is matched with the second connecting hole, the first connecting rod can move in the first circumferential long hole along the circumferential direction of the first connecting disc, the second connecting rod penetrates through the second circumferential limiting long hole and is matched with the first connecting hole, and the second connecting rod can move in the second circumferential long hole along the circumferential direction of the second connecting disc.

3. The balance car of claim 2, wherein the first and second connecting rods are bolts, the first and second connecting holes are threaded holes, the first connecting rod passes through the first circumferential limit long hole to be threadedly engaged with the second connecting hole, and the second connecting rod passes through the second circumferential limit long hole to be threadedly engaged with the first connecting hole.

4. The balance car of claim 2, wherein the first and second connecting rods are stud bolts, the first and second connecting holes are through holes, a first end of the first connecting rod protrudes from the first circumferential limiting long hole and engages with a nut, a second end of the first connecting rod protrudes from the second connecting hole and engages with a nut,

the first end of the second connecting rod extends out of the second circumferential limiting long hole and is matched with the nut, and the second end of the second connecting rod extends out of the first connecting hole and is matched with the nut.

5. The balance car of claim 2, wherein the first connection hole and the first circumferential limit long hole are both one and opposed in a radial direction of the first connection plate, and the second connection hole and the second circumferential limit long hole are both one and opposed in a radial direction of the second connection plate.

6. The balance car of claim 5, wherein the first and second connecting rods are each one.

7. The balance car of claim 1, wherein the first connecting plate is provided with a connecting hole, the second connecting plate is provided with a circumferential limit long hole extending in a circumferential direction of the second connecting plate,

the connecting piece is the connecting rod, the connecting rod passes the spacing slot hole of circumference and with the connecting hole cooperation, the connecting rod is in the interior edge of circumference slot hole the circumference of second connection pad is portable.

8. The balance car of claim 7, wherein 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 be in threaded fit with the connecting hole.

9. The balance car of claim 2, wherein a first boss is provided on an inner side surface of the first connection plate facing the second connection plate, the first boss being provided with a first connection hole,

a second boss is arranged on the inner side surface of the second connecting disc facing the first connecting disc, a second connecting hole is arranged on the second boss, the first connecting disc is provided with a first circumferential limiting long hole extending along the circumferential direction of the first connecting disc,

the first boss is fitted in the second circumferential limiting long hole and is movable in the second circumferential limiting long hole along the circumferential direction of the second connecting disc, the second boss is fitted in the first circumferential limiting long hole and is movable in the first circumferential limiting long hole along the circumferential direction of the first connecting disc,

the connecting piece comprises a first bolt and a second bolt, the first bolt extends into the second connecting hole from the outer side face of the first connecting disc and is in threaded fit with the second connecting hole, and the second bolt extends into the second connecting disc from the outer side face of the second connecting disc and is in threaded fit with the first connecting hole.

10. The balance car of claim 9, wherein the first boss and the first circumferential limit long hole are both one and opposed in a radial direction of the first connecting plate, the second boss and the second circumferential limit long hole are both one and opposed in a radial direction of the second connecting plate,

the first bolt with the second bolt is two, first connecting hole with the second connecting hole is two, first bolt follow the lateral surface of first connection pad passes first separation blade and stretches into and screw-thread fit is in the second connecting hole, the second bolt follow the lateral surface of second connection pad passes the second separation blade and stretches into and screw-thread fit is in the first connecting hole.

11. The balance car of claim 1, wherein a boss is provided on an inner side surface of the first connecting plate facing the second connecting plate, the boss being provided with a connecting hole,

the second connecting disc is provided with a circumferential limiting long hole extending along the circumferential direction of the second connecting disc,

the boss is matched in the circumferential limiting long hole and can move in the circumferential limiting long hole along the circumferential direction of the second connecting disc,

the connecting piece is a bolt, and the bolt extends into the outer side face of the second connecting disc and is in threaded fit in the connecting hole.

12. The balance car of claim 11, wherein the bosses are two and opposed in a radial direction of the first connecting plate, and the circumferential limit long holes are two and opposed in a radial direction of the second connecting plate.

13. The balance car of claim 1, wherein a lower surface of the first car body is provided with a first mounting groove, a lower surface of the second car body is provided with a second mounting groove, the first axle is pressed in the first mounting groove by a first pressing plate, and the second axle is pressed in the second mounting groove by a second pressing plate.

14. The balance vehicle of claim 1, wherein the first wheel comprises a first in-wheel motor and the second wheel comprises a second in-wheel motor, a first motor shaft of the first in-wheel motor forming the first axle and a second motor shaft of the second in-wheel motor forming the second axle.

15. The balance car of any one of claims 1 to 14, wherein a spacing washer is provided between the first and second connector discs.

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