Balanced Scooter

Abstract

An embodiment of the present invention discloses a balancing scooter, which includes a first pedal component, a second pedal component, and a rotating component. The first pedal component includes a first housing, the second pedal component includes a second housing, and the rotating component includes a connecting shaft and a limiting member. The connecting shaft extends along a first direction. The first end of the connecting shaft is rotatably connected to the first housing, and the second end of the connecting shaft is fixedly connected to the second housing or rotatably connected within a set angle range. The limiting member has a through groove that penetrates the limiting member along the first direction. The connecting shaft is disposed through the through groove, and the limiting member is used to be fixedly arranged on the first housing. In a projection plane orthogonal to the first direction, the outer peripheral contour of the projection of the connecting shaft has a plurality of vertices. The through groove has a first inner wall surface and a second inner wall surface, and the maximum dimension of the connection line among the plurality of vertices is greater than the maximum clearance dimension between the first inner wall surface and the second inner wall surface of the through groove. The balancing scooter according to the embodiment of the present invention has high mechanical strength, reliability, and safety.

Description

Technical Field

[0001] The present invention relates to the technical field of scooters, and in particular, to a balancing scooter. Background Art

[0002] A balancing scooter is an integrated human-machine interactive vehicle. Because of its light weight, fashionable appearance, flexible and simple operation, and low-carbon environmental protection, it can be used for entertainment and short-distance travel, and is widely loved by users. The balancing scooter includes a left pedal assembly, a right pedal assembly, a left hub motor, a right hub motor, and a rotating device connecting the left pedal assembly and the right pedal assembly. The rotating device can relatively rotate the left pedal assembly and the right pedal assembly to differentially rotate the left and right wheels, thereby realizing steering control.

[0003] In the related art, the rotating device of the balancing scooter includes a rotating shaft, a bearing, and a limiting structure. The limiting structure adopts a form of cooperation between a limiting pin or a screw and a groove. However, the limiting structure of the above-mentioned balancing scooter is prone to deformation or even fracture, and has problems of poor mechanical strength, low safety and reliability. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to some extent. For this purpose, an embodiment of the present invention provides a balancing scooter, which has strong mechanical strength and high reliability.

[0005] In a first aspect, the balancing scooter according to the embodiment of the present invention includes: a first pedal component, a second pedal component, and a rotating component. The first pedal component includes a first housing, the second pedal component includes a second housing, and the rotating component includes a connecting shaft. The connecting shaft extends along a first direction. A first end of the connecting shaft is rotatably connected to the first housing, and a second end of the connecting shaft is fixedly connected to the second housing or rotatably connected within a set angle range, so that the first housing and the second housing can relatively rotate;

[0006] A limiting member having a through groove penetrating the limiting member along the first direction. The connecting shaft is disposed in the through groove, and the limiting member is used to be fixedly disposed on the first housing;

[0007] Wherein, the through groove has a first inner wall surface and a second inner wall surface which are oppositely arranged, at least a part of the connecting shaft located in the through groove has a first side surface and a second side surface which are oppositely arranged. In a projection plane orthogonal to the first direction, an outer contour formed by the projections of the first side surface and the second side surface of the connecting shaft is at least a part of a polygon, and the outer contour formed by the projections of the first side surface and the second side surface has a plurality of vertices. The dimension of the connection line between the two vertices with the farthest distance among the plurality of vertices is greater than the dimension of the maximum gap between the first inner wall surface and the second inner wall surface of the through groove; at the initial position where the first housing and the second housing rotate relative to each other, the two vertices with the farthest distance are arranged with gaps from both the first inner wall surface and the second inner wall surface of the through groove.

[0008] In the balance scooter according to the embodiment of the present invention, the first end of the connecting shaft of the rotating member is rotatably connected to the first housing of the first pedal member, the second end of the connecting shaft is connected to the second housing, the limiting member is arranged on the first housing, the connecting shaft is arranged in the through groove. When the first housing rotates relative to the second housing, the limiting member also rotates relative to the second housing. Since the dimension of the connection line between the two vertices with the farthest distance among the plurality of vertices of the connecting shaft is greater than the dimension of the maximum gap between the first inner wall surface and the second inner wall surface of the through groove, when the limiting member rotates, the first inner wall surface abuts against the first side surface, and the second inner wall surface abuts against the second side surface, so as to limit the limiting member and prevent the limiting member from further rotating relative to the connecting shaft, thereby preventing the first housing from rotating relative to the connecting shaft. Thus, in the balance scooter according to the embodiment of the present invention, the rotating member restricts the further rotation of the limiting member relative to the rotating shaft by the contact between the outer peripheral surface of the connecting shaft and the wall surface of the through groove, and the mechanical strength of the connecting shaft and the limiting member is good, which improves the reliability and safety of the rotation stop of the rotating member, and thus improves the mechanical strength, reliability and safety of the balance scooter according to the embodiment of the present invention.

[0009] In some embodiments, the connecting shaft is tubular.

[0010] In some embodiments, the outer peripheral contour of the cross section of the connecting shaft at each position in its extending direction is a regular polygon.

[0011] In some embodiments, the regular polygon is a rectangle, and the first inner wall surface, the second inner wall surface, the first side surface and the second side surface are all planes.

[0012] In some embodiments, the through groove further has a third inner wall surface and a fourth inner wall surface which are oppositely arranged, and both the third inner wall surface and the fourth inner wall surface are adjacent to the first inner wall surface and the second inner wall surface.

[0013] In some embodiments, in a projection plane orthogonal to the first direction, the outer contours of the projections of the third inner wall surface and the fourth inner wall surface are each at least a part of a polygon, and both the third inner wall surface and the fourth inner wall surface are provided with a clearance from the connecting shaft; or, in a projection plane orthogonal to the first direction, the outer contours of the projections of the third inner wall surface and the fourth inner wall surface are each an arc, and the third inner wall surface and / or the fourth inner wall surface are provided with a clearance from or are adjacent to the connecting shaft.

[0014] In some embodiments, the rotating member further includes a conversion member having a through hole extending through the conversion member along the first direction, the connecting shaft passes through the through hole, and the connecting shaft is circumferentially fixed relative to the conversion member; in a projection plane orthogonal to the first direction, the outer peripheral contour of at least a part of the projection of the conversion member is circular, so that the conversion member is rotatably connected to the first housing.

[0015] In some embodiments, in a projection plane orthogonal to the first direction, the contour of the projection of the through hole is a polygon and is the same as the outer peripheral contour of the projection of the portion of the connecting shaft located within the through hole in the projection plane, and the connecting shaft is embedded in the through hole.

[0016] In some embodiments, the conversion member includes a base body and an extension portion, the through hole is provided in the base body, the extension portion is formed by extending along the first direction from at least one side surface of the base body, the extension portion is fixedly connected to the connecting shaft, and in a projection plane orthogonal to the first direction, the outer peripheral contour of the projection of the base body is circular.

[0017] In some embodiments, there are at least two conversion members, one conversion member cooperates with the first end of the connecting shaft, and the other conversion member is located in the first housing and is adjacent to the second housing.

[0018] In some embodiments, the rotating member further includes a pressing member provided on the outer peripheral side of the base body, the pressing member is connected to the first housing, the pressing member is an arc-shaped member, and the side surface of the pressing member adjacent to the base body is adapted to the outer peripheral surface of the base body, so that the base body is rotatable relative to the pressing member.

[0019] In some embodiments, the base body has a first annular portion and a second annular portion, the first annular portion is located at the outer peripheral edge of one side of the base body, the second annular portion is located at the outer peripheral edge of the other side of the base body, and the pressing member is located between the first annular portion and the second annular portion.

[0020] In some embodiments, the limiting member is located in the first housing and is adjacent to the second housing.

[0021] In some embodiments, the rotating member further includes an elastic reset member, and the elastic reset member connects the limiting member and the connecting shaft.

[0022] In some embodiments, the elastic reset member is a reset wire. One end of the reset wire is connected to the connecting shaft. A mating hole is provided on the limiting member, and the mating hole communicates with the through groove. The other end of the reset wire is fitted in the mating hole.

[0023] In some embodiments, there are at least two mating holes. The reset wire includes a first section, a second section, and a third section connected in sequence. The second section is connected to the connecting shaft. The first section is fitted in one of the mating holes, and the third section is fitted in the other mating hole.

[0024] In some embodiments, the balance scooter further includes: a first wheel body and a second wheel body. The first wheel body is rotatably connected to the first housing, and the second wheel body is rotatably connected to the second housing; a first hub motor and a second hub motor. The first hub motor is disposed in the first housing and connected to the first wheel body, and the second hub motor is disposed in the second housing and connected to the second wheel body; the balance scooter further includes a first motor shaft pad and a second motor shaft pad. The first motor shaft pad is disposed on the first housing, and the second motor shaft pad is disposed on the second housing. The first motor shaft pad is used to fix the motor shaft of the first hub motor, and the second motor shaft pad is used to fix the motor shaft of the second hub motor; when the second end of the connecting shaft is fixedly connected to the second housing, the connecting shaft is fixedly connected to the second motor shaft pad via an adapter plate.

[0025] In some embodiments, one end of the adapter plate is fixedly connected to the connecting shaft, and the other end of the adapter plate is detachably connected to the second motor shaft pad. The thickness direction of the adapter plate is orthogonal to the extension direction of the connecting shaft.

[0026] In some embodiments, one end of the adapter plate is fixedly connected to the middle of the connecting shaft in the thickness direction of the adapter plate.

[0027] In a second aspect, the balance scooter according to an embodiment of the present invention includes: a first pedal member and a second pedal member, the first pedal member including a first housing, and the second pedal member including a second housing; a connecting shaft extending along a first direction, a first end of the connecting shaft being rotatably connected to the first housing, and a second end of the connecting shaft being fixedly connected to the second housing or rotatably connected within a set angle range; the connecting shaft having a polygonal cross-section; a conversion member having a through-hole extending through the conversion member along the first direction, the connecting shaft passing through the through-hole, the connecting shaft and the conversion member being relatively fixed in the circumferential direction of the connecting shaft, and in a projection plane orthogonal to the first direction, at least a part of the projection of the conversion member having a circular outer contour so that the conversion member is rotatably connected to the first housing and / or the second housing; a first wheel body and a second wheel body, the first wheel body being rotatably connected to the first housing, and the second wheel body being rotatably connected to the second housing.

[0028] For the balance scooter according to an embodiment of the present invention, the cross-section of the rotating shaft is a polygonal structure, which has higher supporting strength than a circular shaft or a circular tube, so that the balance scooter can bear a greater load. By cooperating the conversion member with the connecting shaft having a polygonal cross-section, the relative rotation between the first housing and the connecting shaft is thereby converted into the relative rotation between the first housing and the conversion member. Since the outer contour of the conversion member is circular, it is easy to realize the relative rotation between the first housing and the connecting shaft with a polygonal cross-section. Therefore, while ensuring the relative rotation between the two housings, the mechanical strength of the balance scooter is improved and the reliability is high.

[0029] In some embodiments, in a projection plane orthogonal to the first direction, the contour of the projection of the through-hole is polygonal and the same as the outer contour of the projection of the part of the connecting shaft located within the through-hole in the projection plane, and the connecting shaft is embedded in the through-hole.

[0030] In some embodiments, the conversion member includes a base body and an extension portion, the through-hole is provided in the base body, the extension portion is formed by extending along the first direction from at least one side surface of the base body, the extension portion is fixedly connected to the connecting shaft, and in a projection plane orthogonal to the first direction, the outer contour of the projection of the base body is circular.

[0031] In some embodiments, the conversion member is located at the first end of the connecting shaft, the balance scooter further includes a pressing member, the pressing member is provided on the outer peripheral side of the base body, both ends of the pressing member are connected to the first housing, the pressing member is an arc-shaped member, and the side surface of the pressing member adjacent to the base body is adapted to the outer peripheral surface of the base body so that the base body is rotatable relative to the pressing member.

[0032] In some embodiments, the balance scooter further includes a first cushion block and a second cushion block. The first cushion block and the second cushion block are connected to the first housing, and the first cushion block and the second cushion block are located on both sides of the conversion member in a second direction, the second direction being orthogonal to the first direction. One end of the pressing member is connected to the first cushion block, and the other end of the pressing member is connected to the second cushion block.

[0033] In some embodiments, the balance scooter further includes a first hub motor and a first motor shaft cushion block. The first hub motor is disposed in the first housing and connected to the first wheel body, and the first motor shaft cushion block is disposed in the first housing. The first motor shaft cushion block is used to fix the motor shaft of the first hub motor, and the first cushion block and the second cushion block are integrally formed with the first motor shaft cushion block.

[0034] In some embodiments, the balance scooter further includes a second hub motor and a second motor shaft cushion block. The second hub motor is disposed in the second housing and connected to the second wheel body, and the second motor shaft cushion block is disposed in the second housing. The second motor shaft cushion block is used to fix the motor shaft of the second hub motor. When the second end of the connecting shaft is fixedly connected to the second housing, the connecting shaft is fixedly connected to the second motor shaft cushion block via an adapter plate.

[0035] In some embodiments, one end of the adapter plate is fixedly connected to the connecting shaft, and the other end of the adapter plate is detachably connected to the second motor shaft cushion block. The thickness direction of the adapter plate is orthogonal to the extending direction of the connecting shaft.

[0036] In some embodiments, one end of the adapter plate is fixedly connected to the middle of the connecting shaft in the thickness direction of the adapter plate.

[0037] In some embodiments, the conversion member is located on at least one of the first end of the connecting shaft, the end of the first housing adjacent to the second housing, and the end of the second housing adjacent to the first housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic internal structure diagram of a balance scooter according to an embodiment of the present invention.

[0039] Figure 2 is an exploded schematic internal structure diagram of a balance scooter according to an embodiment of the present invention.

[0040] Figure 3 is an exploded schematic diagram of a rotating member according to an embodiment of the present invention.

[0041] Figure 4Schematic diagram of the return wire of the rotating component according to an embodiment of the present invention.

[0042] Figure 5 Schematic diagram of the limiting member of the rotating component rotating 0° relative to the connecting shaft according to an embodiment of the present invention.

[0043] Figure 6 Is Figure 5 Enlarged schematic diagram of part A in

[0044] Figure 7 Schematic diagram of the limiting member of the rotating component rotating counterclockwise relative to the connecting shaft by an angle according to an embodiment of the present invention.

[0045] Figure 8 Is Figure 7 Enlarged schematic diagram of part B in

[0046] Figure 9 Schematic diagram of the limiting member of the rotating component rotating clockwise relative to the connecting shaft by an angle according to an embodiment of the present invention.

[0047] Figure 10 Is Figure 9 Enlarged schematic diagram of part C in

[0048] Reference numerals: 1, rotating component; 11, first housing; 12, second housing; 13, connecting shaft; 131, first side surface; 132, second side surface; 14, limiting member; 141, through groove; 1411, first inner wall surface; 1412, second inner wall surface; 1413, third inner wall surface; 1414, fourth inner wall surface; 142, mating hole; 15, return wire; 151, first section; 152, second section; 1521, first sub-section; 1522, bending section; 1523, second sub-section; 153, third section; 16, conversion member; 161, base body; 1611, through hole; 1612, first annular portion; 1613, second annular portion; 162, extension portion; 17, pressing member; 2, first motor shaft spacer; 3, second motor shaft spacer; 4, adapter plate; 41, slotted opening; 5, first spacer; 6, second spacer. Detailed Description of the Invention

[0049] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown 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.

[0050] As Figure 1-10As shown in the figure, the balancing scooter according to an embodiment of the present invention includes a first pedal member, a second pedal member, and a rotating member 1. The first pedal member includes a first housing 11, and the second pedal member includes a second housing 12. When a user uses the balancing scooter, one foot can step on the first pedal member, and the other foot can step on the second pedal member.

[0051] The rotating member 1 includes a connecting shaft 13 and a limiting member 14. The connecting shaft 13 extends along a first direction (such as Figure 1 the left-right direction shown in the figure), and the first end of the connecting shaft 13 (such as Figure 1 the left end of the connecting shaft 13 shown in the figure) is used to be rotatably connected to the first housing 11, and the second end of the connecting shaft 13 (such as Figure 1 the right end of the connecting shaft 13 shown in the figure) is used to be fixedly connected to the second housing 12 or rotatably connected within a set angle range, so that the first housing 11 and the second housing 12 can rotate relative to each other.

[0052] Specifically, when the first end of the connecting shaft 13 is rotatably connected to the first housing 11 and the second end of the connecting shaft 24 is fixedly connected to the second housing 12 or rotatably connected within a set angle range, the first housing 11 can rotate relative to the second housing 12. It should be noted that the first housing should be understood in a broad sense, and is not limited to a housing with a chamber, and can also be a plate body. When the second end of the connecting shaft 24 is rotatably connected to the second housing 12, the implementation manner can be achieved by using the prior art manner, or can adopt the same or similar implementation manner as the relative rotation of the first end of the connecting shaft and the first housing.

[0053] The stopper 14 has a through slot 141 that penetrates the stopper 14 along the first direction, the connecting shaft 13 is inserted into the through slot 141, and the stopper 14 is used to be fixed on the first housing 11. The through slot 141 has a first inner wall surface 1411 and a second inner wall surface 1412 that are arranged opposite to each other, and at least the portion of the connecting shaft 13 located in the through slot 141 has a first side surface 131 and a second side surface 132 that are arranged opposite to each other. In the projection plane orthogonal to the first direction, the outer contour formed by the projection of the first side surface 131 and the second side surface 132 of the connecting shaft 13 is at least a part of a polygon, and the outer contour formed by the projection of the first side surface 131 and the second side surface 132 has a plurality of vertices, and the size of the line connecting the two vertices that are farthest from each other among the plurality of vertices is greater than the size of the maximum gap between the first inner wall surface 1411 and the second inner wall surface 1412 of the through slot 141. For example, the polygon may be a triangle, a quadrilateral, a pentagon, a hexagon, etc. The first side surface 131 and the second side surface 132 of the connecting shaft 13 are both one face or multiple adjacent faces of a polygon. For example, the first side surface 131 and the second side surface 132 can be two faces corresponding to two opposite sides of the polygon, or two faces corresponding to two adjacent sides of the polygon can be the first side surface, and the two faces corresponding to the other two adjacent sides can be the second side surfaces.

[0054] At the initial position of relative rotation of the first shell 11 and the second shell 12, the two vertices farthest from each other are both provided with gaps from the first inner wall surface 1411 and the second inner wall surface 1412 of the through slot, so that when the second shell 12 rotates relative to the first shell 11, the stopper 14 can also rotate relative to the connecting shaft 13. The first inner wall surface 1411 and the second inner wall surface 1412 can be formed by the surfaces corresponding to the two halves of the polygon after the polygon is cut into two parts along the direction vertically and passing through the axis of the connecting shaft, and each inner wall surface can be a plane or a plurality of adjacent planes. For example, in the case where the polygon is a rectangle, the first inner wall surface 1411 and the second inner wall surface 1412 can be two surfaces corresponding to two opposite sides of the polygon, or two surfaces corresponding to two adjacent sides of the polygon can be used as the first inner wall surface, and two surfaces corresponding to the other two adjacent sides can be used as the second inner wall surface.

[0055] In the balance scooter of this embodiment, the limiting member 14 of the rotating member 1 is provided on the first housing 11, and the connecting shaft 13 is passed through the through groove 141. When the first housing 11 rotates relative to the second housing 12, the limiting member 14 also rotates relative to the second housing 12. Since the dimension of the line connecting the two vertices with the farthest distance among the multiple vertices of the connecting shaft 13 is greater than the dimension of the maximum gap between the first inner wall surface 1411 and the second inner wall surface 1412 of the through groove 141, the first inner wall surface 1411 abuts against the first side surface 131 and the second inner wall surface 1412 abuts against the second side surface 132 during the rotation of the limiting member 14, so as to limit the limiting member 14 and prevent the limiting member 14 from further rotating relative to the connecting shaft 13, thereby preventing the first housing 11 from rotating relative to the connecting shaft 13. Thus, in the balance scooter of this embodiment, the rotating member 1 limits the further rotation of the limiting member 14 relative to the connecting shaft 13 by the contact between the outer peripheral surface of the connecting shaft 13 and the wall surface of the through groove 141, and the mechanical strength of the connecting shaft 13 and the limiting member 14 is good, improving the reliability and safety of the position stopping of the rotating member 1, and thus improving the mechanical strength, reliability and safety of the balance scooter of the embodiment of the present invention.

[0056] In some embodiments, the connecting shaft 13 is tubular. Specifically, the connecting shaft 13 is provided as tubular, so that the mass of the connecting shaft 13 is small, and thus the mass of the rotating member 1 is small, making it light to use. In addition, the connecting shaft 13 being tubular can also save the materials required for manufacturing the connecting shaft 13 and reduce costs. Moreover, other components can be accommodated inside the tubular connecting shaft 13, or it is convenient for other components to pass through, which is conducive to the reasonable arrangement of relevant components and saves space.

[0057] In some embodiments, the outer peripheral contour of the cross-section of the connecting shaft 13 at each position in its extending direction is a regular polygon. In this embodiment, the connecting shaft is a polygonal shaft, and the limiting purpose can be achieved by directly matching the external shape of the polygonal shaft with the limiting member, which can make the manufacturing process simpler.

[0058] For example, as Figures 4 to 9 , the cross-section of the connecting shaft 13 can be square. In other words, the connecting shaft 13 can be a square shaft. There is a gap between the outer surface of the connecting shaft 13 and the wall surface of the through groove 141. The dimension of the diagonal of the cross-section of the connecting shaft 13 is greater than the dimension of the through groove 141 in the second direction, so that the wall surface of the through groove 141 will contact the outer wall surface of the connecting shaft 13 during the rotation of the limiting member 14, so that the connecting shaft 13 limits the limiting member 14, and the limiting member 14 can only rotate a certain angle and will not rotate 360 degrees.

[0059] Specifically, the rotation angle of the limiting member 14 can be -15° to 15°.

[0060] Such as Figure 5 andFigure 6 As shown, when the first housing 11 does not rotate relative to the connecting shaft 13, the limiting member 14 also does not rotate relative to the connecting shaft 13. The rotation angle of the limiting member 14 is 0°, and the limiting member 14 is in an initial state.

[0061] As Figure 7 and Figure 8 shown, when the first housing 11 rotates counterclockwise 15° relative to the connecting shaft 13, the first housing 11 drives the limiting member 14 to rotate counterclockwise 15° relative to the connecting shaft 13. At this time, the outer wall surface of the connecting shaft 13 contacts the wall surface of the through groove 141 to stop the limiting member 14, making it difficult for the limiting member 14 to continue rotating counterclockwise.

[0062] As Figure 9 and Figure 10 shown, when the first housing 11 rotates clockwise 15° relative to the connecting shaft 13, the first housing 11 drives the limiting member 14 to rotate clockwise 15° relative to the connecting shaft 13. At this time, the outer wall surface of the connecting shaft 13 contacts the wall surface of the through groove 141 to stop the limiting member 14, making it difficult for the limiting member 14 to continue rotating clockwise.

[0063] In some embodiments, the regular polygon is a rectangle, and the first inner wall surface 1411, the second inner wall surface 1412, the first side surface 131, and the second side surface 132 are all planes.

[0064] Specifically, the fact that the first inner wall surface 1411, the second inner wall surface 1412, the first side surface 131, and the second side surface 132 are all planes not only saves materials but also facilitates the contact between the first inner wall surface 1411 and the second inner wall surface 1412 and the first side surface 131 and the second side surface 132 when the limiting member 14 rotates relative to the connecting shaft 13.

[0065] In some embodiments, the through groove 141 further has a third inner wall surface 1413 and a fourth inner wall surface 1414 that are oppositely arranged, and the third inner wall surface 1413 and the fourth inner wall surface 1414 are both adjacent to the first inner wall surface 1411 and the second inner wall surface 1412.

[0066] Specifically, as Figure 6 shown, the first inner wall surface 1411, the third inner wall surface 1413, the second inner wall surface 1412, and the fourth inner wall surface 1414 are connected in sequence, so that the cross-section of the through groove 141 is rectangular. For this reason, the strength of the limiting member 14 is relatively high. It can be understood that the embodiments of the present invention are not limited to this. For example, in some embodiments, the cross-section of the through groove 141 is U-shaped, in other words, for example, the lower side of the through groove 141 is open.

[0067] In some embodiments, in the projection plane orthogonal to the first direction, the outer contours of the projections of the third inner wall surface 1413 and the fourth inner wall surface 1414 are each at least a part of a polygon, and both the third inner wall surface 1413 and the fourth inner wall surface 1414 are provided with a gap from the connecting shaft 13. Specifically, the outer contour shape of the cross-section of the through groove 141 matches the outer contour shape of the cross-section of the connecting shaft 13, and the outer wall surface of the connecting shaft 13 and the wall surface of the through groove 141 are arranged at intervals, so that when the limiting member 14 rotates relative to the connecting shaft 13 within a certain range, the two do not interfere with each other.

[0068] In other embodiments, in the projection plane orthogonal to the first direction, the outer contours of the projections of the third inner wall surface 1413 and the fourth inner wall surface 1414 are both arcs, and the third inner wall surface 1413 and / or the fourth inner wall surface 1414 are provided with a gap from or adjacent to the connecting shaft 13.

[0069] Specifically, as Figures 5 - 10 shown, the outer contours of the projections of the third inner wall surface 1413 and the fourth inner wall surface 1414 are both arcs, the outer wall surface of the connecting shaft 13 is a plane, and the third inner wall surface 1413 and / or the fourth inner wall surface 1414 are provided with a gap from the outer wall surface of the connecting shaft 13, so that there is no interference between the third inner wall surface 1413 and / or the fourth inner wall surface 1414 and the connecting shaft 13 during relative rotation. Or in other embodiments, the outer contours of the projections of the third inner wall surface 1413 and the fourth inner wall surface 1414 are both arcs, and the outer contours of the projections of the third side surface ( Figure 6 the upper side surface of the connecting shaft 13 in Figure 6 the connecting shaft 13) and the fourth side surface ( Figure 6 the lower side surface of the connecting shaft 13 in Figure 6 ) of the connecting shaft 13 are also arcs, and the third side surface of the connecting shaft 13 is adjacent to and matches the shape of the third inner wall surface 1413, and the fourth side surface of the connecting shaft 14 is adjacent to and matches the shape of the fourth inner wall surface 1414.

[0070] In some embodiments, the rotating member 1 may further include a conversion member 16. The conversion member 16 has a through hole 1611 penetrating the conversion member 16 along the first direction, and the connecting shaft 13 passes through the through hole 1611, and the connecting shaft 13 is circumferentially fixed relative to the conversion member 16.

[0071] Specifically, as Figures 1 to 3 shown, the conversion member 16 is rotatably connected to the first housing 11, and the connecting shaft 13 is disposed in the through hole 1611 on the conversion member 16, so that the connecting shaft 13 is rotatably connected to the first housing 11.

[0072] In the projection plane orthogonal to the first direction, the outer peripheral contour of the projection of at least part of the conversion member 16 is circular, so that the conversion member 16 is rotatably connected to the first housing 11. Specifically, the conversion member 16 cooperates with the connecting shaft 13, whereby the relative rotation between the first housing 11 and the connecting shaft 13 is converted into the relative rotation between the first housing 11 and the conversion member 16. Since the outer peripheral contour of the conversion member 16 is circular, it is easier to generate relative rotation between the first housing 11 and the conversion member 16, so as to realize the rotation of the first housing around the connecting shaft when the connecting shaft is a non-circular shaft.

[0073] The conversion member 16 can also support the connecting shaft 13, so that at the initial position where the first housing 11 and the second housing 12 rotate relative to each other, there is a gap between the outer side surface of the connecting shaft 13 and the inner wall surface of the through groove 141.

[0074] In some embodiments, in the projection plane orthogonal to the first direction, the contour of the projection of the through hole 1611 is polygonal and the same as the outer peripheral contour of the projection of the part of the connecting shaft 13 located in the through hole 1611 in the projection plane, and the connecting shaft 13 is embedded in the through hole 1611. Specifically, the outer peripheral contour of the projection of the through hole 1611 is polygonal and adapted to the projection outer peripheral contour of the connecting shaft 13, and the connecting shaft 13 and the through hole 1611 are not in interference fit, that is, the connecting shaft 13 is fitted in the through hole 1611 to achieve fixation with the conversion member 16.

[0075] In some embodiments, the conversion member 16 includes a base body 161 and an extension portion 162. The through hole 1611 is provided on the base body 161. The extension portion 162 extends along the first direction from at least one side surface of the base body 161. The extension portion 162 is fixedly connected to the connecting shaft 13. In the projection plane orthogonal to the first direction, the outer peripheral contour of the projection of the base body 161 is circular.

[0076] Specifically, as Figure 3 shown, the base body 161 is cylindrical, the central axis of the base body 161 extends along the first direction. The through hole 1611 is provided on the base body 161 and penetrates the base body 161 in the left-right direction. The right end of the extension portion 162 is connected to the left end surface of the base body 161. The left end of the extension portion 162 extends leftward in the left-right direction. The connecting shaft 13 is inserted into the through hole 1611, and the extension portion 162 is connected to the outer surface of the connecting shaft 13, so that the connecting shaft 13 is firmly connected to the base body 161.

[0077] The outer peripheral contour of the base body 161 is circular, so that it is easier for the first housing 11 to rotate relative to the base body 161, reducing the friction between the first housing 11 and the conversion member 16, thereby reducing the wear of the conversion member 16 and the first housing 11 and prolonging the service life of the first housing 11 and the conversion member 16.

[0078] In some embodiments, there are at least two extension portions 162, and the at least two extension portions 162 are arranged at intervals along the circumferential direction of the connecting shaft 13.

[0079] Specifically, as Figure 3 shown, there are two extension portions 162, and the two extension portions 162 are arranged at intervals along the circumferential direction of the connecting shaft 13, and the two extension portions 162 are oppositely arranged in the radial direction of the base body 161. Both of the two extension portions 162 are connected to the outer surface of the connecting shaft 13, further improving the firmness of the connection between the connecting shaft 13 and the base body 161.

[0080] In some embodiments, there are at least two conversion members 16. One conversion member 16 is fitted with the first end of the connecting shaft 13, and the other conversion member 16 is located in the first housing 11 and adjacent to the second housing 12. The extension portion 162 of one conversion member 16 extends towards the other conversion member 16, and the extension portion 162 of the other conversion member 16 extends towards the one conversion member 16.

[0081] Specifically, as Figures 1 to 3 shown, both of the two conversion members 16 are fitted with the connecting shaft 13, and both of the two conversion members 16 are rotatably connected to the first housing 11. One conversion member 16 is fitted at the left end of the connecting shaft 13, and the other conversion member 16 is located in the first housing 11 and adjacent to the second housing 12, so that the connection between the left end of the connecting shaft 13 and the first housing 11 is more firmly rotatable, thereby further improving the reliability and safety of the rotating component.

[0082] In some embodiments, the limiting member 14 is adjacent to the second housing 12 and is located on the side of the other conversion member 16 away from the second housing 12, and at least a part of the extension portion 162 of the other conversion member 16 is located in the through groove 141.

[0083] Specifically, as Figure 1 and Figure 2 shown, the limiting member 14 is located on the side of the other conversion member 16 away from the second housing 12, and the left end of the extension portion 162 of the other conversion member 16 extends leftward out of the through groove 141. One extension portion 162 of the other conversion member 16 is located on the top surface of the connecting shaft 13 and is connected to the top surface of the connecting shaft 13, and the other extension portion 162 of the other conversion member 16 is located on the bottom surface of the connecting shaft 13 and is connected to the bottom surface of the connecting shaft 13. The second section 152 of the return wire 15 is provided on the top surface of one extension portion 162 of the other conversion member 16 and is connected to the top surface of the one extension portion 162 by screws. The first section 151 of the return wire 15 is fitted in one fitting hole 142, and the third section 153 is fitted in the other fitting hole 142. Thus, in this embodiment, the connection mode between the limiting member 14 and the other conversion member 16 of the rotating component 1 is simple, with high fitting degree and compact structure.

[0084] In some embodiments, the rotating member 1 further includes a pressing member 17. The pressing member 17 is disposed on the outer peripheral side of the base body 161. The pressing member 17 is connected to the first housing 11. The pressing member 17 is an arc-shaped member. The side surface of the pressing member 17 adjacent to the base body 161 is adapted to the outer peripheral surface of the base body 161, so that the base body 161 is rotatable relative to the pressing member 17.

[0085] Specifically, as Figure 1 and Figure 2 shown, both ends of the pressing member 17 are connected to the first housing 11. The base body 161 is disposed between the pressing member 17 and the first housing 11. The middle portion of the pressing member 17 is convex toward the first housing 11 in an arc shape, so that the side surface of the pressing member 17 adjacent to the base body 161 is adapted to the outer peripheral surface of the base body 161, so that the base body 161 is rotatable relative to the pressing member 17, thereby making the manner in which the base body 161 is rotatably connected to the first housing 11 simple and easy to operate. In addition, the structure of the pressing member 17 is simple, saving costs.

[0086] Specifically, as Figure 1 and Figure 2 shown, there are two pressing members 17. One pressing member 17 is disposed at one end of the first housing 11 away from the second housing 12 and cooperates with the base body 161 at the left end of the connecting shaft 13. The other pressing member 17 is disposed at one end of the first housing 11 adjacent to the second housing 12 and cooperates with the base body 161 located inside the first housing 11 and adjacent to the second housing 12, thereby further improving the firmness of the rotatable connection between the connecting shaft 13 and the first housing 11.

[0087] In some embodiments, grease may be provided between the side surface of the pressing member 17 adjacent to the base body 161 and the base body 161 to reduce the frictional force generated when the base body 161 rotates relative to the pressing member 17.

[0088] In some embodiments, the base body 161 has a first annular portion 1612 and a second annular portion 1613. The first annular portion 1612 is located at the outer peripheral edge of one side of the base body 161. The second annular portion 1613 is located at the outer peripheral edge of the other side of the base body 161. The pressing member 17 is located between the first annular portion 1612 and the second annular portion 1613.

[0089] Specifically, as Figure 3As shown, the first annular portion 1612 and the second annular portion 1613 are arranged at intervals in the left - right direction on the base body 161. The first annular portion 1612 is located at the left end of the base body 161 and is arranged around the outer peripheral surface of the left end of the base body 161. The second annular portion 1613 is located at the right end of the base body 161 and is arranged around the outer peripheral surface of the right end of the base body 161. The pressing member 17 is located between the first annular portion 1612 and the second annular portion 1613, so that when the first housing 11 rotates relative to the base body 161, the pressing member 17 is not easily separated from the base body 161, thereby making the rotatable connection between the base body 161 and the first housing 11 more stable.

[0090] In some embodiments, the limiting member 14 is located on the first housing 11 and is adjacent to the second housing 12.

[0091] Specifically, as Figure 1 shown, the limiting member 14 is located on the first housing 11 and at a position adjacent to the second housing 12, so that the limiting member 14 can limit the whole connecting shaft 13, thereby improving the limiting strength of the limiting member 14 on the connecting shaft 13.

[0092] In some embodiments, the rotating member 1 further includes an elastic reset member, and the elastic reset member connects the limiting member 14 and the connecting shaft 13.

[0093] Specifically, when the first housing 11 and the second housing 12 are stressed and the first housing 11 rotates relative to the second housing 12, the first housing 11 drives the limiting member 14 and the connecting shaft 13 to also rotate relatively, resulting in the torsion of the elastic reset member located between the limiting member 14 and the connecting shaft 13 and generating a force. When the first housing 11 and the second housing 12 are not stressed, the force generated by the torsion of the elastic reset member makes the limiting member 14 rotate relative to the connecting shaft 13 in the direction opposite to the previous direction and return to the initial state, so that the limiting member 14 drives the first housing 11 to return to the initial state. Thus, in this embodiment, the rotating member 1 can not only limit the further rotation of the limiting member 14 by the contact between the outer peripheral surface of the connecting shaft 13 and the wall surface of the through - slot 141, but also make the limiting member 14 return to the initial state through the elastic reset member.

[0094] In some embodiments, the elastic reset member is a reset wire 15. One end of the reset wire 15 is connected to the connecting shaft 13, a mating hole 142 is provided on the limiting member 14, the mating hole 142 communicates with the through - slot 141, and the other end of the reset wire 15 is fitted in the mating hole 142.

[0095] Specifically, one end of the reset wire 15 is connected to the connecting shaft 13, and the other end of the reset wire 15 is fitted in the mating hole 142, making the way of connecting the reset member between the limiting member 14 and the connecting shaft 13 simple.

[0096] In some embodiments, there are at least two mating holes 142. The return wire 15 includes a first section 151, a second section 152, and a third section 153 that are connected in sequence. The second section 152 is connected to the connecting shaft 13. The first section 151 is fitted in one mating hole 142, and the third section 153 is fitted in another mating hole 142.

[0097] Specifically, as Figures 1 to 4 shown, there are two mating holes 142, and the two mating holes 142 are arranged at intervals along the second direction. The first section 151 and the third section 153 are oppositely arranged. The second section 152 includes a first sub-section 1521, a bending section 1522, and a second sub-section 1523 that are connected to the connecting shaft 13 in sequence. The first sub-section 1521 and the second sub-section 1523 are arranged at intervals along the second direction, and both the first sub-section 1521 and the second sub-section 1523 extend in the left-right direction.

[0098] One end of the first sub-section 1521 away from the bending section 1522 is connected to one end of the first section 151. The other end of the first section 151 is fitted in one of the mating holes 142, and the extending direction of the first sub-section 1521 is orthogonal to the extending direction of the first section 151. One end of the second sub-section 1523 away from the bending section 1522 is connected to one end of the second section 152. The other end of the second section 152 is fitted in the other mating hole 142, and the extending direction of the second sub-section 1523 is orthogonal to the extending direction of the second section 152.

[0099] Specifically, the return wire 15 is formed by bending a single wire, so that the structure of the return wire 15 is simple and the cost is low.

[0100] In some other embodiments, the elastic return member can be a spring or other forms of elastic members, as long as it can satisfy that when there is no force between the first housing and the second housing, the acting force generated by the elastic member can make the limiting member rotate relative to the connecting shaft to return to the initial state to achieve reset.

[0101] In some embodiments, the balance scooter further includes a first wheel body (not shown), a second wheel body (not shown), a first hub motor (not shown), a second hub motor (not shown), a first motor shaft spacer 2, and a second motor shaft spacer 3. The first wheel body is rotatably connected to the first housing 11, and the second wheel body is rotatably connected to the second housing 12.

[0102] The first hub motor is arranged in the first housing 11 and connected to the first wheel body, and the second hub motor is arranged in the second housing 12 and connected to the second wheel body.

[0103] Specifically, the first hub motor is connected to the first wheel body so that the first hub motor can drive the first wheel body to rotate, and the second hub motor is connected to the second wheel body so that the second hub motor can drive the second wheel body to rotate. Thus, the balance scooter of this embodiment is simple to operate when walking.

[0104] The first motor shaft spacer 2 is provided on the first housing 11, and the second motor shaft spacer 3 is provided on the second housing 12. The first motor shaft spacer 2 is used to fix the motor shaft of the first hub motor, and the second motor shaft spacer 3 is used to fix the motor shaft of the second hub motor.

[0105] When the second end of the connecting shaft 13 is fixedly connected to the second housing 12, the connecting shaft 13 is fixedly connected to the second motor shaft spacer 3 via the adapter plate 4. Specifically, the second section 152 of the connecting shaft 13 is connected to the second motor shaft spacer 3 through the adapter plate 4, which increases the strength of the connecting shaft 13 to support a person standing on the second housing 12.

[0106] In some embodiments, one end of the adapter plate 4 (such as Figure 1 the left end of the adapter plate 4 shown) is fixedly connected to the connecting shaft 13, and the other end of the adapter plate 4 (such as Figure 1 the right end of the adapter plate 4 shown) is detachably connected to the second motor shaft spacer 3, and the thickness direction of the adapter plate 4 is orthogonal to the extending direction of the connecting shaft 13.

[0107] Specifically, for the balance scooter of this embodiment, by detachably connecting the adapter plate to the second motor shaft spacer, different thicknesses of the second motor shaft spacer 3 can be replaced, so that the connecting shaft 13 can rotate coaxially with the second motor shaft spacer 3.

[0108] In some embodiments, one end of the adapter plate 4 is fixedly connected to the middle of the connecting shaft 13 in the thickness direction of the adapter plate 4.

[0109] Specifically, as Figure 1 shown, the left end of the adapter plate 4 is fixedly connected to the middle of the right end of the connecting shaft 13 in the thickness direction of the adapter plate 4, which further improves the coherence of the coaxial rotation of the connecting shaft 13 and the second motor shaft spacer 3.

[0110] The present invention also provides a balance scooter according to another embodiment. The balance scooter includes a first pedal component, a second pedal component, a connecting shaft 13, a first wheel body (not shown), a second wheel body (not shown), a second motor shaft pad 3, and an adapter plate 4. The first pedal component includes a first housing 11, and the second pedal component includes a second housing 12. When a user uses the balance scooter, one foot can step on the first pedal component, and the other foot can step on the second pedal component. The connecting shaft 13 extends in a first direction. The first end of the connecting shaft 13 is used to be fixedly connected to the first housing 11 or rotatably connected within a set angle range, and the second end of the connecting shaft 13 is used to be fixedly connected to the second housing 12. The connecting shaft 13 is a circular tube or a tubular structure with a polygonal cross-section.

[0111] The first wheel body is rotatably connected to the first housing 11, and the second wheel body is rotatably connected to the second housing 12. The second motor shaft pad 3 is used to fix the motor shaft of the second wheel body. One end of the adapter plate 4 is fixedly connected to the connecting shaft 13, and the other end of the adapter plate 4 is detachably connected to the second motor shaft pad 3.

[0112] For the balance scooter according to the embodiment of the present invention, by connecting the connecting shaft 13 and the second motor shaft pad 3 through the adapter plate 4, the strength of the connecting shaft 13 to support the user can be increased. Thus, the structure of the balance scooter according to the embodiment of the present invention is simple and has strong mechanical strength.

[0113] In some embodiments, the thickness direction of the adapter plate 4 is orthogonal to the extension direction of the connecting shaft 13.

[0114] Specifically, the thickness direction of the adapter plate 4 is orthogonal to the extension direction of the connecting shaft 13, which increases the contact area between the adapter plate 4 and the connecting shaft 13, making the connection between the adapter plate 4 and the connecting shaft 13 more firm.

[0115] In some embodiments, one end of the adapter plate 4 is fixedly connected to the middle of the connecting shaft 13 in the thickness direction of the adapter plate 4.

[0116] Specifically, the left end of the adapter plate 4 is fixedly connected to the middle of the right end of the connecting shaft 13 in the thickness direction of the adapter plate 4, further improving the coherence of the coaxial rotation of the connecting shaft 13 and the second motor shaft pad 3.

[0117] In some embodiments, the second end of the connecting shaft 13 is provided with a first card slot (not shown) and a second card slot (not shown) that are spaced apart in a second direction. The first card slot and the second card slot extend in the first direction. Specifically, as Figure 3 shown, the right end of the connecting shaft 13 is provided with the first card slot and the second card slot. The first card slot and the second card slot are arranged oppositely, and the first card slot and the second card slot extend leftward from the right end of the connecting shaft 13.

[0118] The left end of the adapter piece 4 has a first support piece (not shown) and a second support piece (not shown) arranged at intervals in the second direction. One side of the first support piece adjacent to the second support piece is fitted in the first card slot, and one side of the second support piece adjacent to the first support piece is fitted in the second card slot. The second end of the connecting piece is connected to the second motor shaft spacer 3.

[0119] As Figure 3 shown, a slotted opening 41 is provided at the left end of the adapter piece 4. The slotted opening 41 extends rightward from the left end of the adapter piece 4. The first support piece and the second support piece are arranged on the wall surface of the slotted opening 41, and the first support piece and the second support piece are arranged at intervals in the second direction. The right end of the connecting shaft 13 is arranged in the slotted opening 41. One side of the first support piece adjacent to the second support piece is fitted in the first card slot, and one side of the second support piece adjacent to the first support piece is fitted in the second card slot, so that the connecting shaft 13 is firmly connected to the adapter piece 4.

[0120] The present invention also provides a balance scooter of another embodiment. The balance scooter includes a first pedal component, a second pedal component, a connecting shaft 13, a conversion piece 16, a first wheel body (not shown), and a second wheel body (not shown). The first pedal component includes a first housing 11, and the second pedal component includes a second housing 12. When a user uses the balance scooter, one foot can step on the first pedal component, and the other foot can step on the second pedal component. The connecting shaft 13 extends in the first direction. The first end of the connecting shaft 13 is rotatably connected to the first housing 11, and the second end of the connecting shaft 13 is fixedly connected to the second housing 12 or rotatably connected within a set angle range; the connecting shaft 13 has a polygonal cross-section structure.

[0121] The conversion piece 16 has a through hole 1611 penetrating through the conversion piece 16 in the first direction. The connecting shaft 13 passes through the through hole 1611, and the connecting shaft 13 is relatively fixed to the conversion piece 16 in the circumferential direction of the connecting shaft 13. In the projection plane orthogonal to the first direction, at least part of the outer peripheral contour of the projection of the conversion piece 16 is circular, so that the conversion piece 16 is rotatably connected to the first housing 11 and / or the second housing 12. The first wheel body is rotatably connected to the first housing 11, and the second wheel body is rotatably connected to the second housing 12.

[0122] For the balance scooter according to the embodiment of the present invention, the cross-section of the rotating shaft 13 has a polygonal structure, which has higher support strength than a circular shaft or a circular tube, so that the balance scooter can bear a greater load. Through the cooperation of the conversion piece 16 and the connecting shaft 13, the relative rotation between the first housing 11 and the connecting shaft 13 is converted into the relative rotation between the first housing 11 and the conversion piece 16. Since the outer peripheral contour of the conversion piece 16 is circular, it is easier to generate relative rotation between the first housing 11 and the conversion piece 16, so that the first housing rotates around the connecting shaft when using a polygonal connecting shaft, and moreover, the mechanical strength of the balance scooter is improved and the reliability is high.

[0123] In some embodiments, within a projection plane orthogonal to the first direction, the contour of the projection of the through hole 1611 is a polygon and is the same as the outer peripheral contour of the projection of the portion of the connecting shaft 13 located within the through hole 1611 in the projection plane, and the connecting shaft 13 is embedded in the through hole 1611.

[0124] Specifically, the outer peripheral contour of the projection of the through hole 1611 is a polygon and is adapted to the outer peripheral contour of the projection of the connecting shaft 13, so that relative rotation between the connecting shaft 13 and the conversion member 16 is not likely to occur.

[0125] In some embodiments, the conversion member 16 includes a base body 161 and an extension portion 162. The through hole 1611 is provided in the base body 161. The extension portion 162 is formed by extending along the first direction from at least one side surface of the base body 161. The extension portion 162 is fixedly connected to the connecting shaft 13. Within a projection plane orthogonal to the first direction, the outer peripheral contour of the projection of the base body 161 is circular.

[0126] Specifically, as Figure 3 shown, the base body 161 is cylindrical, the central axis of the base body 161 extends along the first direction, the through hole 1611 is provided on the base body 161 and penetrates the base body 161 in the left - right direction, the right end of the extension portion 162 is connected to the left end surface of the base body 161, the left end of the extension portion 162 extends leftward in the left - right direction, the connecting shaft 13 is disposed within the through hole 1611, and the extension portion 162 is connected to the outer surface of the connecting shaft 13, so that the connecting shaft 13 is firmly connected to the base body 161.

[0127] The outer peripheral contour of the base body 161 is circular, making it easier for the first housing 11 to rotate relative to the base body 161, reducing the frictional force between the first housing 11 and the conversion member 16, thereby reducing the wear of the conversion member 16 and the first housing 11 and extending the service life of the first housing 11 and the conversion member 16.

[0128] In some embodiments, the conversion member 16 is disposed at the first end of the connecting shaft 13. In further some embodiments, the balance scooter may further include a pressing member 17. The pressing member 17 is disposed on the outer peripheral side of the base body 161 of the conversion member 16. Both ends of the pressing member 17 are connected to the first housing 11. The pressing member 17 may be an arc - shaped member. The side surface of the pressing member 17 adjacent to the base body 161 is adapted to the outer peripheral surface of the base body 161, so that the base body 161 can rotate relative to the pressing member 17.

[0129] In further some embodiments, as Figure 1As shown, the balancing scooter may further include a first cushion block 5 and a second cushion block 6. The first cushion block 5 and the second cushion block 6 are respectively located on both sides of the conversion member 16 along the second direction. One end of the pressing member 17 is connected to the first cushion block 5, and the other end of the pressing member 17 is connected to the second cushion block 6. Thus, the first cushion block 5 and the second cushion block 6 are used to fix both ends of the pressing member 17. For example, both ends of the pressing member 17 can be fixed to the first cushion block 5 and the second cushion block 6 by screws respectively.

[0130] In a further embodiment, the first cushion block 5 and the second cushion block 6 can be integrally formed with the first motor shaft cushion block 2, so as to facilitate the stable connection between the connecting shaft 13 and the motor shaft. By adjusting the thicknesses of the first cushion block 5 and the second cushion block 6 and the first motor shaft cushion block 2, it is convenient to make the connecting shaft 13 rotate coaxially with the motor shaft of the first hub motor.

[0131] In some embodiments, when the second end of the connecting shaft 13 is fixedly connected to the second housing 12, the connecting shaft 13 is fixedly connected to the second motor shaft cushion block 3 via the adapter plate 4. Specifically, the second section 152 of the connecting shaft 13 is connected to the second motor shaft cushion block 3 through the adapter plate 4, which increases the strength of the connecting shaft 13 to support a person standing on the second housing 12.

[0132] In some embodiments, one end of the adapter plate 4 (such as Figure 1 the left end of the adapter plate 4 as shown) is fixedly connected to the connecting shaft 13, and the other end of the adapter plate 4 (such as Figure 1 the right end of the adapter plate 4 as shown) is detachably connected to the second motor shaft cushion block 3. The thickness direction of the adapter plate 4 is orthogonal to the extending direction of the connecting shaft 13.

[0133] Specifically, for the balancing scooter of this embodiment, by detachably connecting the adapter plate to the second motor shaft cushion block, the second motor shaft cushion block 3 with different thicknesses can be replaced, so that the connecting shaft 13 can rotate coaxially with the second motor shaft cushion block 3.

[0134] In some embodiments, one end of the adapter plate 4 is fixedly connected to the middle of the connecting shaft 13 in the thickness direction of the adapter plate 4.

[0135] Specifically, as Figure 1 shown, the left end of the adapter plate 4 is fixedly connected to the middle of the right end of the connecting shaft 13 in the thickness direction of the adapter plate 4, further improving the coherence of the coaxial rotation of the connecting shaft 13 and the second motor shaft cushion block 3.

[0136] In some embodiments, the conversion member 16 is located on at least one of the first end of the connecting shaft 13, the end of the first housing 11 adjacent to the second housing 12, and the end of the second housing 12 adjacent to the first housing 11. As Figures 1 to 3As shown, the conversion member 16 can be located at any one of the three positions: the left end of the connecting shaft 13, the right end of the first housing 11, and the left end of the second housing 12, at any two of these positions, or the conversion member 16 can also be provided at all of the above three positions.

[0137] Specifically, the balance scooter can include two conversion members 16, one of which is provided at the first end of the connecting shaft 13, and the other is provided at one end of the first housing 11 adjacent to the second housing 12. In this way, conversion members 16 are provided at both ends of the connecting shaft 13 portion located in the first housing 11, which can better support the rotation of the first housing 11 around the connecting shaft 13. Thus, the rotation of the first housing 11 around the connecting shaft 13 can be better supported, thereby improving the reliability and safety of the balance scooter in this embodiment.

[0138] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0139] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0140] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. 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 circumstances.

[0141] In the present invention, unless otherwise clearly defined or limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, a first feature being "above", "over" and "on top of" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. A first feature being "under", "below" and "beneath" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0142] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0143] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present invention.

Claims

1. A balance scooter, characterized in that, Comprising a first pedal member, a second pedal member, and a rotating member (1), the first pedal member includes a first housing (11), the second pedal member includes a second housing (12), and the rotating member (1) includes: A connecting shaft (13), the connecting shaft (13) extends along a first direction, a first end of the connecting shaft (13) is rotatably connected to the first housing (11), and a second end of the connecting shaft (13) is fixedly connected to the second housing (12) or rotatably connected within a set angular range, so that the first housing (11) and the second housing (12) can rotate relative to each other; A limiting member (14), the limiting member (14) has a through groove (141) extending through the limiting member (14) along the first direction, the connecting shaft (13) passes through the through groove (141), and the limiting member (14) is used to be fixedly arranged on the first housing (11); A conversion member (16), the conversion member (16) has a through hole (1611) extending through the conversion member (16) along the first direction, the connecting shaft (13) passes through the through hole (1611), and the connecting shaft (13) is circumferentially relatively fixed to the conversion member (16); in a projection plane orthogonal to the first direction, at least a part of the outer peripheral contour of the projection of the conversion member (16) is circular, so that the conversion member (16) is rotatably connected to the first housing (11), and the conversion member converts the relative rotation between the first housing and the connecting shaft into the relative rotation between the first housing and the conversion member, and the rotation angle of the limiting member is -15° to 15°; Wherein, the through groove (141) has a first inner wall surface (1411) and a second inner wall surface (1412) arranged opposite to each other, at least a part of the connecting shaft (13) located within the through groove (141) has a first side surface (131) and a second side surface (132) arranged opposite to each other, in a projection plane orthogonal to the first direction, the outer contour formed by the projections of the first side surface (131) and the second side surface (132) of the connecting shaft (13) is at least a part of a polygon, and the outer contour formed by the projections of the first side surface (131) and the second side surface (132) has multiple vertices, and the dimension of the line connecting the two vertices with the farthest distance among the multiple vertices is greater than the dimension of the maximum gap between the first inner wall surface (1411) and the second inner wall surface (1412) of the through groove (141); at the initial position of the relative rotation between the first housing (11) and the second housing (12), the two vertices with the farthest distance are both arranged with gaps from the first inner wall surface (1411) and the second inner wall surface (1412) of the through groove (141).

2. The balance scooter according to claim 1, characterized in that, The connecting shaft (13) is tubular.

3. The balance scooter according to claim 1, characterized in that, The outer peripheral contour of the cross-section of the connecting shaft (13) at each position in its extending direction is a regular polygon.

4. The balance scooter according to claim 3, characterized in that, The regular polygon is a rectangle, and the first inner wall surface (1411), the second inner wall surface (1412), the first side surface (131) and the second side surface (132) are all planes.

5. The balance scooter according to claim 1, characterized in that, The through groove (141) further has a third inner wall surface (1413) and a fourth inner wall surface (1414) which are oppositely arranged, and both the third inner wall surface (1413) and the fourth inner wall surface (1414) are adjacent to the first inner wall surface (1411) and the second inner wall surface (1412).

6. The balance scooter according to claim 5, characterized in that, In a projection plane orthogonal to the first direction, the outer contours of the projections of the third inner wall surface (1413) and the fourth inner wall surface (1414) are at least part of a polygon, and both the third inner wall surface (1413) and the fourth inner wall surface (1414) are arranged with a gap from the connecting shaft (13); Or, In a projection plane orthogonal to the first direction, the outer contours of the projections of the third inner wall surface (1413) and the fourth inner wall surface (1414) are arcs, and the third inner wall surface (1413) and / or the fourth inner wall surface (1414) are arranged with a gap from or adjacent to the connecting shaft (13).

7. The balance scooter according to claim 1, characterized in that, In a projection plane orthogonal to the first direction, the contour of the projection of the through hole (1611) is a polygon and is the same as the outer peripheral contour of the projection in the projection plane of the part of the connecting shaft (13) located in the through hole (1611), and the connecting shaft (13) is embedded in the through hole (1611).

8. The balance scooter according to claim 1, characterized in that, The conversion member (16) includes a base body (161) and an extension portion (162). The through hole (1611) is provided in the base body (161). The extension portion (162) is formed by extending along the first direction from at least one side surface of the base body (161). The extension portion (162) is fixedly connected to the connecting shaft (13). In a projection plane orthogonal to the first direction, the outer peripheral contour of the projection of the base body (161) is circular.

9. The balance scooter according to claim 8, characterized in that, There are at least two conversion members (16). One conversion member (16) cooperates with the first end of the connecting shaft (13), and the other conversion member (16) is located in the first housing (11) and is adjacent to the second housing (12).

10. The balance scooter according to claim 8, characterized in that, The rotating member (1) further includes a pressing member (17). The pressing member (17) is arranged on the outer peripheral side of the base body (161). The pressing member (17) is connected to the first housing (11). The pressing member (17) is an arc-shaped member. The side surface of the pressing member (17) adjacent to the base body (161) is adapted to the outer peripheral surface of the base body (161) so that the base body (161) can rotate relative to the pressing member (17).

11. The balance scooter according to claim 10, characterized in that, The base body (161) has a first annular portion (1612) and a second annular portion (1613). The first annular portion (1612) is located at the outer peripheral edge of one side of the base body (161), and the second annular portion (1613) is located at the outer peripheral edge of the other side of the base body (161). The pressing member (17) is located between the first annular portion (1612) and the second annular portion (1613).

12. The balance scooter according to claim 1, characterized in that, The limiting member (14) is located in the first housing (11) and adjacent to the second housing (12).

13. The balance scooter according to any one of claims 1 to 12, characterized in that, The rotating member (1) further includes an elastic reset member, and the elastic reset member connects the limiting member (14) and the connecting shaft (13).

14. The balance scooter according to claim 13, characterized in that, The elastic reset member is a reset wire (15). One end of the reset wire (15) is connected to the connecting shaft (13). A mating hole (142) is provided on the limiting member (14), and the mating hole (142) communicates with the through slot (141). The other end of the reset wire (15) is fitted in the mating hole (142).

15. The balance scooter according to claim 14, characterized in that, There are at least two mating holes (142). The reset wire (15) includes a first section (151), a second section (152) and a third section (153) connected in sequence. The second section (152) is connected to the connecting shaft (13). The first section (151) is fitted in one of the mating holes (142), and the third section (153) is fitted in the other mating hole (142).

16. The balance scooter according to any one of claims 1 to 12, characterized in that, Further included are: A first wheel body and a second wheel body. The first wheel body is rotatably connected to the first housing (11), and the second wheel body is rotatably connected to the second housing (12). A first in-wheel motor and a second in-wheel motor. The first in-wheel motor is arranged in the first housing (11) and connected to the first wheel body, and the second in-wheel motor is arranged in the second housing (12) and connected to the second wheel body. A first motor shaft spacer (2) and a second motor shaft spacer (3). The first motor shaft spacer (2) is arranged in the first housing (11), and the second motor shaft spacer (3) is arranged in the second housing (12). The first motor shaft spacer (2) is used to fix the motor shaft of the first in-wheel motor, and the second motor shaft spacer (3) is used to fix the motor shaft of the second in-wheel motor. When the second end of the connecting shaft (13) is fixedly connected to the second housing (12), the connecting shaft (13) is fixedly connected to the second motor shaft spacer (3) via an adapter plate (4).

17. The balance scooter according to claim 16, wherein, One end of the adapter plate (4) is fixedly connected to the connecting shaft (13), and the other end of the adapter plate (4) is detachably connected to the second motor shaft spacer (3). The thickness direction of the adapter plate (4) is orthogonal to the extension direction of the connecting shaft (13).

18. The balance scooter according to claim 17, wherein, One end of the adapter plate (4) is fixedly connected to the connecting shaft (13) at the middle in the thickness direction of the adapter plate (4).

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