CN110789645B

CN110789645B - Frame and vehicle

Info

Publication number: CN110789645B
Application number: CN201911164525.8A
Authority: CN
Inventors: 熊坤; 黎雄; 张东胜; 周诚; 张正友
Original assignee: Tencent Technology Shenzhen Co Ltd
Current assignee: Tencent Technology Shenzhen Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2021-11-05
Anticipated expiration: 2039-11-25
Also published as: CN110789645A

Abstract

The present disclosure provides a vehicle frame and a vehicle including the same. The frame extends and has first end and the second end relative in the first direction along the first direction, and the first end of frame is used for connecting handlebar and first wheel support, and the second end of frame is used for connecting second wheel support, and the frame includes: the first driving device is connected with the wheel moving assembly and used for driving the wheel moving assembly to move in the first direction and adjusting the distance between the second wheel support and the first end of the frame. The length of the carriage in the extending direction thereof is adjustable.

Description

Frame and vehicle

Technical Field

Embodiments of the present disclosure relate to a vehicle frame and a vehicle including the same.

Background

The bicycle is widely used by the general public as a traditional two-wheeled vehicle, and is a favorite vehicle for short-distance travel of people due to the characteristics of environmental protection, convenient parking, adaptability to various road surfaces and the like.

Disclosure of Invention

The embodiment of the disclosure provides a frame and a vehicle comprising the same. The length of the carriage in the extending direction thereof is adjustable.

At least one embodiment of the present disclosure provides a frame for a convertible vehicle. The frame extends along a first direction and has a first end and a second end opposite in the first direction, the first end of the frame is used for connecting a handlebar and a first wheel support, the second end of the frame is used for connecting a second wheel support, the frame comprises: the first driving device is connected with the wheel moving assembly and used for driving the wheel moving assembly to move in the first direction so as to adjust the distance between the second wheel support and the first end of the frame.

For example, an embodiment of the present disclosure provides the vehicle frame further including a seat moving assembly connected to a seat and configured to move the seat in the first direction, and the first driving device is further connected to the seat moving assembly and configured to drive the seat moving assembly to move in the first direction, so as to adjust a distance between the seat and the first end of the vehicle frame.

For example, in a vehicle frame provided by an embodiment of the present disclosure, the vehicle frame further includes a link for adjusting a distance between a first end and a second end of the vehicle frame along the first direction, and the wheel moving assembly includes a slider for adjusting the distance and a slide rail, wherein the wheel moving assembly is connected to the second wheel frame through the first end of the link, the second end of the link is connected to the slider for adjusting the distance, and the slider is located on a track for adjusting the distance and is movable along the slide rail in the first direction.

For example, in a vehicle frame provided by an embodiment of the present disclosure, the vehicle frame further includes a moving rail, and the seat moving assembly includes a seat supporting rod and a seat base, wherein a first end of the seat supporting rod is used for connecting a seat, and a second end of the seat supporting rod is connected with the seat base, and the seat base is disposed on the moving rail and can move along the moving rail in a first direction.

For example, in a vehicle frame provided in an embodiment of the present disclosure, the first driving device includes a first gear, the vehicle frame further includes an a-shaft, and the seat base includes a first rack, wherein the first gear is disposed at one end of the a-shaft, the first gear is engaged with the first rack, the a-shaft drives the first gear to rotate, and when the first gear rotates, the first rack is driven to move in the first direction, so that the seat moving assembly moves in the first direction.

For example, in the vehicle frame provided by an embodiment of the present disclosure, the wheel moving assembly further includes a second gear and a second rack, and a B spindle, and the slider is fixedly connected to the second rack, wherein the second gear is disposed at one end of the B spindle, the second gear is engaged with the second rack, the B spindle drives the second gear to rotate, and when the second gear rotates, the second gear drives the second rack to move in the first direction, so that the wheel moving assembly moves in the first direction.

For example, in the vehicle frame provided in an embodiment of the present disclosure, the rotation axis a and the rotation axis B are the same rotation axis.

For example, in a vehicle frame provided in an embodiment of the present disclosure, the first driving device further includes: the output shaft of the first driving motor is connected with the first driving shaft so as to drive the first driving shaft to rotate, and the first driving shaft is in transmission connection with the rotating shaft A so as to drive the rotating shaft A.

For example, in a vehicle frame provided in an embodiment of the present disclosure, the first driving device further includes: and the rotating shaft C is in transmission connection with the rotating shaft A.

For example, in a vehicle frame provided in an embodiment of the present disclosure, the first driving device further includes: worm, first worm wheel, second worm wheel and second driving motor, wherein, first worm wheel with A pivot fixed connection, the second worm wheel with C pivot fixed connection, the worm with first worm wheel and second worm wheel transmission is connected, second driving motor with the worm is connected in order to drive the worm rotates.

For example, in a vehicle frame provided in an embodiment of the present disclosure, the first driving device further includes: third gear and third driving motor, the third gear sets up in the C pivot, the C gear with first gear or second gear engagement make the C pivot with A pivot transmission is connected, perhaps first drive arrangement still includes the fourth gear, the fourth gear is fixed to be set up in the A pivot and with the third gear engagement makes the C pivot with A pivot transmission is connected.

For example, an embodiment of the present disclosure provides that the vehicle frame further comprises a seat steering mechanism cooperating with the second end of the seat support rod to rotate the seat support rod to fix the seat in the first direction and in a second direction perpendicular to the first direction, and to switch between the first direction and the second direction, respectively.

For example, in a vehicle frame provided by an embodiment of the present disclosure, the seat steering mechanism includes a cam, a first cam contact piece, and a second cam contact piece, wherein the seat support rod is rotatably mounted on the seat base, and the first cam contact piece and the second cam contact piece are disposed at a second end of the seat support rod, the cam is fixed in the first direction, wherein the seat base moves in the first direction with respect to the cam, the first cam contact piece and the second cam contact piece are engaged with the cam, during the movement of the seat base with respect to the cam, so that the first cam contact piece and the second cam contact piece are respectively toggled by the cam to fix the seat in the first direction and in the second direction, respectively, and switching between the first direction and the second direction.

At least one embodiment of the present disclosure also provides a vehicle including any one of the frames, the first wheel bracket, the second wheel bracket, the first wheel, the second wheel, and the seat described above. The first wheel support is connected with the first end of the frame, the second wheel support is connected with the second end of the frame, the first wheel and the second wheel are respectively installed on the first wheel support and the second wheel support, and the seat is arranged on the frame.

For example, an embodiment of the present disclosure provides that the vehicle further includes a controller in signal connection with the wheel movement assembly of the frame and configured to control the wheel movement assembly to adjust a distance between the second wheel bracket and the first end of the frame.

The frame that this disclose at least one embodiment provided and including car of this frame, because this frame accessible wheel removes the subassembly, adjust the second wheel support with the distance between the first end of frame to change the overall length of frame in the first direction, and then make things convenient for the user's of different heights to ride.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure and are not limiting to the present disclosure.

Fig. 1A is a schematic three-dimensional structure diagram of a frame of a convertible vehicle according to an embodiment of the disclosure;

fig. 1B is a schematic front view of a frame of a convertible vehicle according to an embodiment of the disclosure;

FIG. 2 is a schematic view of a portion of a frame according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a first wheel steering mechanism of the vehicle frame provided by an embodiment of the present disclosure;

FIG. 4 is a schematic view of a second wheel steering mechanism of the vehicle frame provided in accordance with an embodiment of the present disclosure;

FIG. 5A is a schematic view of a first seat steering mechanism and a second adjustment mechanism of a vehicle frame provided in accordance with an embodiment of the present disclosure;

FIG. 5B is a schematic cross-sectional view of a third link of the second adjustment mechanism of the vehicle frame according to one embodiment of the present disclosure;

FIG. 6 is a schematic view of a portion of a first seat steering mechanism of the vehicle frame provided in accordance with an embodiment of the present disclosure;

FIG. 7A is a schematic view of a first adjustment mechanism of a vehicle frame provided in accordance with an embodiment of the present disclosure;

FIG. 7B is a schematic view of a first adjustment mechanism of a vehicle frame provided in accordance with an embodiment of the present disclosure in one position;

FIG. 7C is a schematic view of a first adjustment mechanism of a vehicle frame provided in accordance with an embodiment of the present disclosure in another position;

FIG. 8 is a schematic view of a convertible vehicle in a bicycle state according to an embodiment of the present disclosure;

FIG. 9A is a schematic view of a handlebar of a convertible vehicle provided in accordance with an embodiment of the present disclosure;

FIG. 9B is a partial enlarged front view of a portion A of a handlebar of the convertible vehicle provided in accordance with an embodiment of the present disclosure;

FIG. 9C is a partial enlarged left view of a handlebar of the convertible vehicle in accordance with an embodiment of the present disclosure;

FIG. 9D is a partial enlarged front view at B of a handlebar of the convertible vehicle provided in accordance with an embodiment of the present disclosure;

FIG. 9E is a schematic view of a driving device for a handlebar of a convertible vehicle according to an embodiment of the present disclosure;

FIG. 9F is a schematic view of a modified vehicle provided in accordance with an embodiment of the present disclosure, with the handle bars in a folded state;

FIG. 9G is a schematic view of a modified vehicle provided in accordance with an embodiment of the present disclosure with the handle bars in an open position;

fig. 10 is a schematic view of a convertible vehicle provided in an embodiment of the disclosure in a state of a balance vehicle;

FIG. 11 is a schematic view of an intermediate state of the convertible vehicle changing from a bicycle state to a balance state provided by an embodiment of the present disclosure;

FIG. 12 is a schematic view of another intermediate state of the convertible vehicle changing from a bicycle state to a balance state provided by an embodiment of the present disclosure; and

fig. 13 is a schematic view of an intermediate state of the transformable vehicle changing from the state of the balance vehicle to the state of the bicycle provided by an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," "third," "fourth," "fifth," and the like in this disclosure is not intended to imply any order, quantity, or importance, but rather the intention is to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" and similar words are intended to mean that the elements or items listed before the word cover the elements or items listed after the word and their equivalents.

Two-wheeled vehicles currently in common use by the general public mainly include bicycles and balance cars. As a traditional two-wheeled vehicle, the bicycle is convenient to park and can adapt to running on various road surfaces, but the bicycle is not suitable for commuting in indoor conditions such as offices, delivery rooms and the like due to the limitation of the bending radius angle of the bicycle. On the other hand, the balance car can run on a narrow road surface, but the balance car is only suitable for running on a flat road surface and is not suitable for running on a rugged road surface. Therefore, there is a need for a vehicle having two functions of a bicycle and a balance car, which can have the advantages of the bicycle and the balance car, and can convert a narrow and flat road surface into a balance car and convert the narrow and flat road surface into a bicycle, thereby satisfying various driving requirements of users.

In view of the above technical problems, embodiments of the present disclosure provide a frame and a convertible vehicle. The frame extends in a first direction and has first and second ends opposite in the first direction and includes a first wheel steering mechanism, a second wheel steering mechanism, and a first seat steering mechanism. The first wheel steering mechanism is arranged at the first end of the frame to be connected with the first wheel and is configured to be capable of fixing the first wheel in a first direction and a second direction perpendicular to the first direction respectively and switching between the first direction and the second direction; a second wheel steering mechanism disposed at a second end of the frame to couple to a second wheel and configured to enable securing and shifting the second wheel in and between the first and second directions, respectively; the first seat steering mechanism is provided between the first wheel steering mechanism and the second wheel steering mechanism to connect the seat, and is configured to be able to fix the seat in the first direction and the second direction, and switch between the first direction and the second direction, respectively.

The frame can realize the conversion of the directions of the first wheel and the second wheel through the first wheel steering mechanism and the second wheel steering mechanism and the conversion of the direction of the seat through the first seat steering mechanism, so that the frame can be realized as a frame for a bicycle and a frame for a balance car, and the deformed car comprising the frame can be used as a bicycle or a balance car. Therefore, the deformable vehicle can run on various complex road surfaces, and brings better travel experience for users.

The following detailed description of the frame for a convertible vehicle provided in accordance with one or more embodiments of the present disclosure is made with reference to the accompanying drawings, but is not intended to limit the disclosure.

Fig. 1A is a schematic three-dimensional structure diagram of a frame of a convertible vehicle according to an embodiment of the disclosure; fig. 1B is a schematic front view of a frame of a convertible vehicle according to an embodiment of the disclosure.

As shown in fig. 1A and 1B, the frame 100 extends in a first direction X, and the frame 100 has a first end 101 and a second end 102 in the first direction X. The first end 101 and the second end 102 are disposed opposite to each other, and a line connecting the first end 101 and the second end 102 is parallel to the first direction X, that is, the first direction X is a direction in which the vehicle frame 100 is located along a horizontal direction. The frame 100 may be used in a convertible vehicle for converting between a bicycle and a balance vehicle.

The frame 100 includes a first wheel steering mechanism 110, a second wheel steering mechanism 120, and a first seat steering mechanism 130. The first wheel steering mechanism 110 is disposed at the first end 101 of the frame 100. The first wheel steering mechanism is rotatably disposed (e.g., nested) at the first end 101. The first wheel steering mechanism 110 is configured to couple (e.g., mount) a first wheel, the first wheel steering mechanism 100 can fix the first wheel in a first direction X (as shown in fig. 1A), and the first wheel steering mechanism 110 is configured to convert the first wheel from the first direction X to a second direction Y, whereby the first wheel can be fixed in the second direction Y. Likewise, the first wheel steering mechanism 110 may also switch the first wheel from the second direction Y to the first direction X. The second direction Y is perpendicular to the first direction X, i.e., the second direction Y is perpendicular to the extending direction of the frame 100 (in fig. 1A).

A second wheel steering mechanism 120 is disposed at the second end 102 of the frame 100. The second wheel steering mechanism 120 is rotatably disposed (e.g., sleeved) at the second end 102. The second wheel steering mechanism 120 is configured to couple (e.g., mount) a second wheel, the second wheel steering mechanism 120 can secure the second wheel in the first direction X (as shown in fig. 1A), and the second wheel steering mechanism 120 is configured to convert the second wheel from the first direction X to the second direction Y, whereby the second wheel can be secured in the second direction Y. Similarly, the second wheel steering mechanism 120 may also switch the second wheel from the second direction Y to the first direction X.

The first seat steering mechanism 130 is disposed between the first wheel steering mechanism 110 and the second wheel steering mechanism 120 to couple (e.g., mount) the seat. The first seat steering mechanism 130 may fix the seat in a first direction X (as shown in fig. 1A), and the first seat steering mechanism 130 is configured to convert the seat from the first direction X to a second direction Y, whereby the seat may be fixed in the second direction Y. Similarly, the first seat steering mechanism 130 may also switch the seat from the second direction Y to the first direction X.

Since the frame 100 can respectively realize the conversion of the directions of the first wheel and the second wheel through the first wheel steering mechanism 110 and the second wheel steering mechanism 120, and the conversion of the direction of the seat through the first seat steering mechanism 130, the frame 100 can be realized as a frame for a bicycle and a frame for a balance car.

For example, in some examples, fig. 3 is a schematic view of a first wheel steering mechanism of a vehicle frame provided by an embodiment of the present disclosure. As shown in fig. 3, the first wheel steering mechanism 110 includes a first wheel bracket 111 and a first rotation shaft 112. The first wheel bracket 111 is used for fixedly connecting a first wheel, and one end of the first rotating shaft 112 is connected with the first wheel bracket 111. The first rotating shaft 112 is used for driving the first wheel bracket 111 to switch between the first direction X and the second direction Y. For example, the first rotation shaft 112 fixes the first wheel holder 111 in the first direction X, and the first rotation shaft 112 drives the first wheel holder 111 to switch from the first direction X to the second direction Y, whereby the first wheel holder 111 is fixed in the second direction Y; similarly, the first rotating shaft 112 can also convert the first wheel frame 111 from the second direction Y to the first direction X. When the first wheel bracket 111 is fixed in the first direction X, the plane of the bracket on the two sides of the first wheel bracket 111 is perpendicular to the direction of the line connecting the first end 101 and the second end 102 of the frame 100 (as shown in fig. 2); when the first wheel bracket 111 is fixed in the second direction Y, the planes of the brackets on both sides of the first wheel bracket 111 are parallel to the direction of the line connecting the first end 101 and the second end 102 of the frame 100.

For example, in some examples, as shown in fig. 3, the first wheel steering mechanism 110 further includes a first steering motor 113, and the other end of the first rotating shaft 112 opposite to the end connected to the first wheel bracket 111 is connected to an output shaft of the first steering motor 113. The first steering motor 113 is used to drive the rotation of the first rotating shaft 112. Therefore, the first rotating shaft 112 rotates to switch the first wheel bracket 111 between the first direction X and the second direction Y.

For example, in other examples, the first steering motor 113 may also be replaced by another mechanism that can drive the first rotating shaft 112 to rotate, and the embodiment of the present disclosure is not limited thereto.

For example, in some examples, first wheel steering mechanism 110 may be rotatably coupled to frame 100 via a coupling (e.g., a sleeve) disposed at a first end of the frame.

For example, in some examples, as shown in fig. 3, the first wheel steering mechanism 110 may further include a first bearing 114, where the first bearing 114 is disposed on the first rotating shaft 112 to provide support for the rotation of the first rotating shaft 112 driven by the first steering motor 113, reduce friction during the rotation, and improve the service life of the first wheel steering mechanism 110.

For example, in some examples, fig. 4 is a schematic view of a second wheel steering mechanism of a vehicle frame provided by an embodiment of the present disclosure. As shown in fig. 4, the second wheel steering mechanism 120 includes a second wheel bracket 121 and a second rotating shaft 122. The second wheel bracket 121 is used for fixedly connecting a second wheel, and one end of the second rotating shaft 122 is connected with the second wheel bracket 121. The second rotating shaft 122 is used for driving the second wheel bracket 121 to switch between the first direction X and the second direction Y. For example, the second rotation shaft 122 fixes the second wheel carriage 121 in the first direction X, and the second rotation shaft 122 may drive the second wheel carriage 121 to be switched from the first direction X to the second direction Y, whereby the second wheel carriage 121 is fixed in the second direction Y; likewise, the second axle 122 can also switch the second wheel carriage 121 from the second direction Y to the first direction X. When the second wheel bracket 121 is fixed in the first direction X, the plane of the bracket on the two sides of the second wheel bracket 121 is perpendicular to the direction of the line connecting the first end 101 and the second end 102 of the frame 100 (as shown in fig. 2); when the second wheel bracket 121 is fixed in the second direction Y, the planes of the brackets on both sides of the second wheel bracket 123 are parallel to the direction of the line connecting the first end 101 and the second end 102 of the frame 100.

For example, in some examples, as shown in fig. 4, the second wheel steering mechanism 120 further includes a second steering motor 123, and the other end of the second rotating shaft 122 opposite to the end connected to the second wheel bracket 121 is connected to an output shaft of the second steering motor 123. The second steering motor 123 is used for driving the second rotating shaft 122 to rotate. Therefore, the second rotating shaft 122 rotates to drive the second wheel bracket 121 to switch between the first direction X and the second direction Y.

For example, in other examples, the second steering motor 123 may also be replaced by another mechanism that can drive the second rotating shaft 122 to rotate, and the embodiment of the present disclosure is not limited thereto.

For example, in some examples, the second wheel steering mechanism 120 may be rotatably coupled to the frame 100 via a coupling (e.g., a sleeve) disposed at a second end of the frame.

For example, in some examples, as shown in fig. 4, the second wheel steering mechanism 120 may further include a second bearing 124, where the second bearing 124 is sleeved on the second rotating shaft 122 to provide support for the rotation of the second rotating shaft 122 driven by the second steering motor 123, reduce friction during the rotation, and improve the service life of the second wheel steering mechanism 120.

For example, in some examples, fig. 5A is a schematic view of a first seat steering mechanism and a second adjustment structure of a vehicle frame provided by an embodiment of the present disclosure; fig. 6 is a partial structural schematic view of a first seat steering mechanism of a vehicle frame according to an embodiment of the present disclosure.

As shown in fig. 5A and 6, the first seat steering mechanism 130 includes a seat support rod 131 and a seat steering driver 140. The seat support rod 131 includes a first end 132 for supporting the seat and a second end 133 driven to rotate by the seat steering drive 140. The seat steering drive 140 cooperates with the second end 133 of the seat support rod 131 to rotate the seat support rod 131. Thereby, the seat fixed to the first end 132 of the seat support rod 131 is rotated.

For example, in some examples, the material of the seat support rod 131 may be selected from aluminum alloy and other materials with better strength, corrosion resistance, processability, and the like. For example, in some examples, as shown in fig. 5A and 6, the first seat steering mechanism 130 further includes a seat base 134, a first cam contact 135, and a second cam contact 136. The seat support rod 131 is rotatably mounted on the seat base 134. A first cam contact 135 and a second cam contact 136 are provided at the second end 133 of the seat support bar 131. For example, the seat base 134 is provided with a mounting hole 139, and the seat support rod 131 is sleeved on the mounting hole 139 of the seat base 134. The mounting hole 139 is loosely fitted with the seat support rod 131, and the seat support rod 131 can rotate relative to the seat base 134. The first cam contact 135 and the second cam contact 136 are, for example, fixedly connected to the second end of the seat support bar 131. Here, the fixing connection manner may be, for example, a threaded connection, a riveting, a welding, and the like, and the embodiment of the disclosure is not limited thereto. The first cam contact member 135 and the second cam contact member 136 are, for example, rod-shaped or plate-shaped members extending from the first connector 1310. Thus, the seat support rod 131 can rotate along with the rotation of the first cam contact piece 135 and the second cam contact piece 136, and further rotate the seat mounted thereon.

For example, in some embodiments, a first connector 1310 is fixedly disposed at the second end 133 of the seat support bar 131, and an end of the first cam contact member 135 and an end of the second cam contact member 136 are fixedly coupled to the first connector 1310, such as by a threaded connection. Thus, the seat support rod 131 can rotate along with the rotation of the first cam contact piece 135 and the second cam contact piece 136, and further rotate the seat mounted thereon.

As shown in fig. 5A and 6, in one example, the seat steering driver 140 includes a cam 141, the cam 141 is fixedly disposed on the frame, and the cam 141 is located on the side of the second end 133 of the seat support rod 131 and is, for example, on the same horizontal plane as the first cam contact member 135 and the second cam contact member 136. The seat base 134 is movable in the first direction X relative to the cam 141, and the cam 141 cooperates with the first cam contact 135 and the second cam contact 136. During the movement of the seat base 134 in the first direction relative to the cam 141, the first cam contact member 135 contacts the cam 141 and is tangent to the cam 141, so that the first cam contact member 135 is toggled, thereby rotating the seat support bar 131 from the first direction X to the second direction Y; during movement of the seat base 134 in the first direction relative to the cam 141, the second cam contact 136 contacts the cam 141 and is tangent to the cam 141, such that the second cam contact 136 is toggled to rotate the seat support bar 131 from the second direction Y to the first direction X, thereby switching the seat fixed to the first end 132 of the seat support bar 131 between the first direction and the second direction. In this example, the position of the seat relative to the vehicle frame is not fixed, and the seat moves in the first direction X along with the deformation of the transformable vehicle.

For example, in other examples, the seat base 134 is fixedly disposed on the vehicle frame, and the cam can move (e.g., translate) relative to the seat base 134 in, for example, a first direction, thereby toggling the first cam contact 135 and the second cam contact 136, respectively, during the cam movement, such that the seat support bar 131 rotates from the second direction Y to the first direction X, thereby enabling the seat fixed on the first end 132 of the seat support bar 131 to switch between the first direction and the second direction. In this example, the position of the seat relative to the vehicle frame is fixed and does not move with the deforming operation of the deforming vehicle.

For example, in the above example, the angle between the first cam contact piece 135 and the second cam contact piece 136 on the plane determined perpendicular to the first direction X and the second direction Y is 90 degrees.

For example, in some examples, as shown in fig. 5A, the seat steering drive 140 further includes a fourth shaft 142 and a first gear 143. The axis direction of the fourth rotating shaft 142 is perpendicular to the direction of the horizontal supporting surface, that is, the fourth rotating shaft 142 is disposed in the vertical direction. The first gear 143 is fixedly disposed at an upper end of the fourth rotating shaft 142, the first gear 143 coincides with an axis of the fourth rotating shaft 142, and the fourth rotating shaft 142 can drive the first gear 143 to rotate. Although the foregoing mentions that the terms "first", "second", "third", "fourth", "fifth" and the like used in the present disclosure do not denote any number, for the convenience of understanding, the three shafts included in fig. 5A, i.e., the fourth shaft 142, the fifth shaft 182 and the third shaft 151, may also be expressed as a shaft, B shaft and C shaft, respectively.

For example, in other examples, the first gear 143 may also be disposed at a lower end of the fourth rotating shaft 142.

For example, in some examples, as shown in fig. 5A, the seat base 134 includes a first gear rack 137, the first gear rack 137 being in meshing engagement with a first gear 143. The first rack 137 is fixed to the seat base 134 and extends in a first direction. When the first gear 143 rotates, the first rack 137 is driven to move in the first direction X, so that the seat base 134 is driven to move in the first direction X, and the cam 141 is fixed in the first direction. Thereby, the relative movement of the seat base 134 and the cam 141 is realized.

For example, in some examples, the vehicle frame 100 further includes at least one moving rail 1311, the moving rail 1311 being fixed to the vehicle frame 100. In the example shown in fig. 5A, the vehicle frame 100 includes two moving rails 1311, one on each side of the seat base 134 in the second direction. The moving track 1311 is parallel to the first direction X. Both sides of the seat base 134 are disposed on the moving rails 1311 and move along the moving rails 1311. The travel rails 1311 provide support for the seat base 134.

For example, in some examples, the material of the moving rail 1311 may be selected from aluminum alloy and other materials having good strength, corrosion resistance, workability, and the like.

For example, in some examples, as shown in fig. 5A, the frame 100 further includes a first retaining member 104 and a second retaining member 105. The first limiting member 104 and the second limiting member are fixed to the frame 100, for example, have a substantially rod shape, and are located on two sides of the seat base 134 in the first direction X to limit the movement of the seat base 134 in the first direction X.

For example, in other examples, the first limiting member 104 and the second limiting member 105 may also be limiting members respectively fixed on the moving rail 1311 to limit the movement of the seat base 134.

For example, in some examples, as shown in fig. 1A and 1B, the vehicle frame 100 further includes a housing 103 disposed between the first wheel steering mechanism 110 and the second wheel steering mechanism 120 for securing various structural components included in the vehicle frame 100 and providing support and protection.

For example, in some examples, the material of the enclosure 103 may be selected from an aluminum alloy material that has a light weight and structural strength that can meet the needs of the enclosure 103. In addition, the aluminum alloy material has better strength, corrosion resistance, processability and the like. For example, in some examples, as shown in fig. 1B and 2, frame 100 further includes a first adjustment mechanism 150 and a handlebar support assembly 160. The first adjustment structure 150 is disposed between the first wheel steering mechanism 110 and the first seat steering mechanism 130, thereby connecting the two (and the housing 103), and the handlebar support assembly 160 is coupled to the first wheel steering mechanism 110 and configured to mount a handlebar. The first adjustment mechanism 150 is coupled to the handlebar support assembly 160 and adjusts the angle between the handlebar and the horizontal support surface.

For example, in some examples, as shown in fig. 2, the handlebar support assembly 160 is sleeved on the first rotating shaft 112 of the first wheel steering mechanism 110. For example, the handlebar support assembly 160 includes a sleeve 161, a second connector 162, and a third connector 163. The second connector 162 and the third connector 163 are plate-shaped connectors having two through holes, and the second connector 162 and the third connector 163 are fixed to the upper and lower sides of the sleeve 161; the sleeve 161 is sleeved on the first rotating shaft 112, and the first rotating shaft 112 can rotate in the sleeve 161. The through holes of the second and third connecting

members

162 and 163 at the first ends communicate with the sleeve, thereby being sleeved on the first rotating shaft 112. The through holes of the second and third connecting

members

162 and 163 at the second end are aligned with each other, facing away from the first steering mechanism 110 in the first direction X, for mounting the handlebar.

For example, in other examples, the frame 100 may be provided with only one of the second connector 162 or the third connector 163. Alternatively, the frame 100 may eliminate the second connecting member 162 and the third connecting member 163 and fix the handle bar directly to the sleeve 162. The specific structure of the handlebar support assembly 160 is not limited in the embodiments of the present disclosure.

For example, in some examples, fig. 7A is a schematic view of a first adjustment mechanism of a vehicle frame provided by an embodiment of the present disclosure; FIG. 7B is a schematic view of a first adjustment mechanism of a vehicle frame provided in accordance with an embodiment of the present disclosure in one position; fig. 7C is a schematic view of the first adjustment mechanism of the vehicle frame in another position according to an embodiment of the disclosure.

As shown in the example of fig. 7A, 7B, and 7C, the first adjustment mechanism 150 includes a third rotating shaft 151, a rotating member 152, a first link 153, a second link 154, and a first slide rail 155. The third rotation shaft 151 is disposed in a vertical direction, i.e., a direction perpendicular to the horizontal support surface. The rotating member 152 may be, for example, a rotating disk 1521 (shown in fig. 7A). Relative to the horizontal supporting surface, the rotating disc 1521 is disposed at an upper end of the third rotating shaft 151, and the rotating disc 1521 is fixedly connected to the third rotating shaft 151. Here, the fixed connection manner may be, for example, a threaded connection, riveting, welding, or the like, and for example, the rotation disc 1521 and the third rotation shaft 151 may be integrally formed, which is not limited in the embodiments of the present disclosure.

As shown in fig. 7A, the axis of the rotating disc 1521 coincides with the axis of the third rotating shaft 151, and the rotating disc 1521 can be driven to rotate by the third rotating shaft 151. A first end of the first link 153, i.e., an end away from the first seat steering mechanism 130, is movably connected to the rotation plate 1521 and is driven when the rotation plate 1521 is rotated by the third rotation shaft 151, and a second end of the first link 153, i.e., an end away from the rotation plate 1521, is movably connected to the second link 154.

For example, in other embodiments, the rotating member 152 may be disposed at a lower end of the third shaft 151. For another example, in other embodiments, the rotating member 152 may be a partial disk or may be replaced by a cross bar as long as it can rotate around the third rotating shaft 151.

For example, in some examples, as shown in fig. 7A, a plurality of threaded holes 156 are uniformly provided on the same circumference of the rotating member 152. A first upright 157 is disposed in the threaded hole of the rotating component 152, and a first sleeve is disposed at a first end of the first connecting rod 153, and the first sleeve is rotatably sleeved on the first upright 157. The second end of the first link 153 is provided with a second sleeve, and the second sleeve is movably sleeved on a second upright 1541 fixed on the second link 154, so as to be movably connected with the second link 154. In this embodiment, the connection manner of the first link 153 with the rotating component 152 and the second link 154 is not limited to the above manner, and other manners capable of achieving movable connection may also be used, and the embodiment of the present disclosure is not limited thereto. The fixing manner of the first upright and the second upright may be, for example, welding, screwing, and the like, and the embodiments of the present disclosure are not limited thereto.

For example, the first slide rail 155 is relatively slidably provided on the second link 154 in the longitudinal direction of the second link 154. As shown in fig. 7A, the first slide rail 155 and the second link 154 are both arc-shaped and have the same arc. The first end of the first slide rail 155 is fixedly connected to the box 103 of the frame 100 through the fixing hole 1551, the second link 154 is sleeved in the second end of the first slide rail 155, and the fixedly disposed second upright 1541 of the second link 154 is embedded in the opening of the first slide rail 155, so that the second link 154 plays a role of guiding when sliding relatively on the first slide rail 155. Accordingly, the second end of the first link 153 is also disposed in the first slide rail 155 and can slide along the first slide rail 155. One end of the second link 154 is fixedly connected to the sleeve 161 of the handlebar support assembly 160, which can be, for example, welded, screwed, etc., and the disclosed embodiment is not limited thereto.

For example, in some examples, the material of the first link 153 and the second link 154 may be selected from aluminum alloy and other materials with better strength, corrosion resistance, processability, and the like.

For example, in some examples, when the rotating component 152 rotates, the rotating component 152 drives the first link 153 to swing, so as to drive the second link 154 to slide in the first slide rail 155, thereby adjusting the angle between the handlebar support 160 and the horizontal support surface, so that the angle between the handlebar mounted on the handlebar support 160 and the horizontal support surface can be adjusted to adapt to different requirements of bicycles and balance cars for the inclination angle of the handlebar.

Specifically, when the first adjustment mechanism 150 is in the first state as shown in fig. 7B, for example, for a bicycle, the included angle β between the direction J of the handlebar supporting member 160 and the horizontal supporting plane L is smaller than 90 degrees, for example, the included angle β has a value range of about 85 degrees to about 65 degrees, or the included angle β has a value of about 75 degrees. Here, the word "about" indicates that the value may vary, for example, within + -5% or + -15%. When the rotating component 152 of the first adjusting structure 150 rotates to the second state shown in fig. 7C, for example, for a balance car, the first link 153 swings to drive the second link 154 to slide in the first slide rail 155 in a direction away from the rotating component 152, and an included angle β between the direction J of the handlebar supporting component 160 and the horizontal supporting plane L is about 90 degrees.

For example, in some examples, as shown in fig. 1B and 2, frame 100 also includes a second adjustment mechanism 170. The second adjustment mechanism 170 is disposed between the first wheel steering mechanism 110 and the second wheel steering mechanism 120 of the vehicle frame 100. The second adjustment mechanism 170 is connected to the second wheel steering mechanism 120 and is movable in the first direction X, thereby adjusting the distance D between the first wheel steering mechanism 110 and the second wheel steering mechanism 120, and accordingly, the distance between the housing 103 and the second wheel steering mechanism 120. Here, the distance D between the first wheel steering mechanism 110 and the second wheel steering mechanism 120 is also the distance between the first end 101 of the frame 100 and the second end 102 of the frame 100 in the first direction X.

For example, in some examples, as shown in fig. 2 and 5A, the second adjustment mechanism 170 includes a third link 171 and a wheel moving assembly 180. A first end of the third link 171 is connected to the second wheel steering mechanism 120; a second end of the third link 171 is connected to the wheel moving assembly 180; the wheel moving assembly 180 is disposed in the case 103. The second wheel steering mechanism 120 includes a fourth linkage 106 disposed at the second end 102, the fourth linkage 106 being movably disposed on a second axle 122 of the second wheel steering mechanism 120. A first end of the third link 171 is fixedly coupled to the fourth link 106, whereby the third link 171, and the second wheel coupled thereto, can move together with the third link 171 when the third link 171 is moved by the wheel moving assembly 180. Here, the fixed connection manner may be, for example, welding, screwing, and the like, and the embodiments of the present disclosure are not limited thereto.

For example, in some examples, as shown in fig. 5A, wheel moving assembly 180 includes a slider 181, a second slide track 185. The second slide rail 185 is fixed to the case 103 of the vehicle frame 100. The slider 181 is disposed on the second slide rail 185 and configured to be movable in the first direction X, and a second end of the third link 171, which is away from the second wheel steering mechanism 120, is fixedly connected to the slider 181. Here, the fixed connection manner may be, for example, welding, screwing, and the like, and the embodiments of the present disclosure are not limited thereto.

When the slider 181 moves in the first direction X, the third link 171 is driven to move in the first direction X, and the third link 171 drives the second wheel steering mechanism 120 located at the second end 102 of the vehicle frame to move, so as to adjust the distance between the first wheel steering mechanism 110 and the second wheel steering mechanism 120, i.e. the third link 171, the slider 181 and the second slide rail are respectively a link, a slider and a slide rail for adjusting the distance between the two ends of the vehicle frame in the first direction X.

For example, in some examples, as shown in fig. 5B, the cross-section of the third link 171 is cross-shaped to have a desired structural strength while reducing the weight of the third link 171. The third link 171 includes a first dimension X1 and a second dimension X2 in the first direction X, a third dimension Y1 and a fourth dimension Y2 in the second direction Y. The first dimension X1 may range, for example, from about 10 mm to about 14 mm; for example, the first dimension X1 may be approximately 10 millimeters. The third dimension Y1 may range, for example, from about 10 mm to about 14 mm; for example, the third dimension Y1 may take on a value of about 10 millimeters. The second dimension X2 can range, for example, from about 20 mm to about 28 mm; for example, the second dimension X2 may take on a value of about 24 millimeters. The fourth dimension Y2 may range, for example, from about 20 mm to about 28 mm; for example, the fourth dimension Y2 may take on a value of about 24 millimeters. If the size of the third link 171 is smaller than the above size, the third link 171 may be damaged due to insufficient strength when a large force is applied to the vehicle frame 100, and the vehicle frame 100 may be scrapped. The third link 171 may have sufficient structural strength at the above-mentioned dimensioning, thereby increasing the service life of the vehicle frame 100.

For example, the material of the third link 171 may be, for example, an aluminum alloy material that has a light weight and can satisfy the structural strength required for the third link 171. In addition, the aluminum alloy material has better strength, corrosion resistance, processability and the like.

As shown in fig. 5A, the wheel moving assembly 180 further includes a fifth rotating shaft 182 and a second gear 183. The second gear 183 is fixedly provided at one end of the fifth rotation shaft 182. The axis of the second gear 183 coincides with the axis of the fifth rotating shaft 182, and the fifth rotating shaft 182 can drive the second gear 183 to rotate.

In this example, the wheel moving assembly 180 further includes a second rack 184, and the sliding block 181 is fixedly connected to the second rack 184. The second rack 184 is engaged with the second gear 183, and the rotation of the second gear 183 drives the second rack 184 to move. When the second gear 183 rotates, the driving slider 181 moves in the first direction X, so that the third link 171 moves in the first direction X.

For example, in some examples, as shown in fig. 5A, the fifth rotation shaft 182 is the same rotation shaft as the fourth rotation shaft 142. At this time, the first gear 143 is located at an upper end of the fifth rotation shaft 182, and the second gear 183 is located at a lower end of the fifth rotation shaft 182.

For example, in other examples, the fifth rotating shaft 182 and the third rotating shaft 151 may be the same rotating shaft, in which case, the rotating component 152 is located at an upper end of the third rotating shaft 151, the second gear 183 is located at a lower end of the third rotating shaft 151, and the slider 181 is fixedly connected to the second rack 184. The second rack 184 is engaged with the second gear 183, and the rotation of the second gear 183 drives the second rack 184 to move. When the second gear 183 rotates, the driving slider 181 moves in the first direction X, so that the third link 171 moves in the first direction X.

For example, in other examples, the wheel moving assembly 180 may be provided with other types of mechanisms, including, for example, a motor, a guide wheel, and a pull rope fixedly connected to the slider 181 to drive the slider 181 to move in the first direction.

For example, in some examples, as shown in fig. 2 and 5A, the frame 100 further includes a first driving device 190 for driving the third rotating shaft 151 and the fourth rotating shaft 142 to rotate.

As shown in fig. 2 and 5A, the first driving device 190 includes a first driving motor 191 and a first driving shaft 192. An output shaft of the first driving motor 191 is connected to the first driving shaft 192 to drive the first driving shaft 192 to rotate. The first driving shaft 192 is in transmission connection with the third rotating shaft 151 and the fourth rotating shaft 142 to drive the third rotating shaft 151 and the fourth rotating shaft 142.

For example, in some examples, as shown in fig. 5A, the first drive device 190 further includes a first worm gear 193 and a second worm gear 194, and the first drive shaft 192 includes a worm 195. The first worm wheel 193 is fixedly connected to the fourth rotating shaft 142, the second worm wheel 194 is fixedly connected to the third rotating shaft 151, and the second worm wheel 194 is located between the first gear 143 and the second gear 183. The worm 195 is drivingly connected to the first worm wheel 193 and the second worm wheel 194 to drive the worm 195 to rotate. When the worm 195 rotates, the first worm wheel 193 and the second worm wheel 194 are rotated by the worm 195, so as to drive the fourth rotating shaft 142 and the third rotating shaft 151 to rotate, and further drive other components to move, thereby realizing the deformation of the deformable vehicle.

For example, in other examples, the first driving device 190 includes a second driving motor and a third driving motor to respectively drive the first adjusting structure 150 and the second adjusting structure 170, i.e., in this example, the same driving device is not used to drive the first adjusting structure 150 and the second adjusting structure 170. The second driving motor is connected with the third rotating shaft to drive the third rotating shaft to rotate. The third driving motor is connected with the fourth rotating shaft to drive the fourth rotating shaft to rotate.

For example, in other examples, the first driving device includes a fourth driving motor and a third gear, the third gear is disposed at a lower end of the third rotating shaft 151, the first gear 143 is disposed at an upper end of the fourth rotating shaft 142, and the second gear 183 is disposed at a lower end of the fourth rotating shaft 142. The third gear is engaged with the second gear 183, for example, or engaged with a transmission gear additionally provided on the fourth rotating shaft 142, so that the third rotating shaft 151 is in transmission connection with the fourth rotating shaft 142. The fourth driving motor is connected to the third shaft 151 for driving the third shaft 151 to rotate, so as to drive the fourth shaft 142 to rotate.

For example, in other examples, the first driving device may further include a fourth gear disposed on the fourth rotating shaft 142 and engaged with the third gear, such that the third rotating shaft 151 is in transmission connection with the fourth rotating shaft 142. The fourth driving motor is connected to the third shaft 151 for driving the third shaft 151 to rotate, so as to drive the fourth shaft 142 to rotate.

Some embodiments of the present disclosure also provide a convertible vehicle including the frame of any of the above examples, and further including a first wheel, a second wheel, and a seat; the first wheel and the second wheel are respectively arranged at the first end and the second end of the frame through the first wheel steering mechanism of the frame and the second wheel steering mechanism of the frame; the seat is arranged on the frame through a first seat steering mechanism.

This warp car accessible first wheel steering mechanism and second wheel steering mechanism realize the conversion of first wheel and second wheel place direction, realize the conversion of seat place direction through first seat steering mechanism to make warp the car both can regard as the bicycle to use and also can regard as the balance car to use, so, should warp the car and can go on the road surface of multiple complicacy, also bring better trip to experience for the user simultaneously.

The following describes in detail a convertible vehicle provided in accordance with one or more embodiments of the present disclosure with reference to the accompanying drawings.

Fig. 8 is a schematic view of a convertible vehicle in a bicycle state according to an embodiment of the disclosure. Fig. 10 is a schematic view of a convertible vehicle in a state of a balance vehicle according to an embodiment of the disclosure.

As shown in fig. 8, the convertible vehicle 1000 is in a bicycle state. The convertible vehicle 1000 includes a frame 100, a first wheel 200, a second wheel 300, a seat 400, and a handlebar 500. The first wheel 200 is mounted on the brackets on both sides of the first wheel bracket 111 of the first wheel steering mechanism 110. The plane of the first wheel 200 is perpendicular to the plane of the first wheel support 111. The second wheel 300 is mounted on the brackets on both sides of the second wheel bracket 121 of the second wheel steering mechanism 120, and the plane in which the second wheel 300 is located is perpendicular to the plane in which the second wheel bracket 121 is located. The plane of the first wheel 200 coincides with the plane of the second wheel 300 and is parallel to the first direction X. The seat 400 is disposed at the second end 132 of the seat support rod 131, the seat 400 faces the direction in which the first wheel 200 is located, and the direction of the seat 400 is parallel to the first direction X; at this time, the seat 400 is offset from the center of the frame and closer to the second wheel 300. The handle bar 500 is sleeved in the through holes of the second connecting member 162 and the third connecting member 163 of the handle bar supporting assembly 160. The handlebar 500 is oriented in a direction that coincides with the direction J in which the handlebar support assembly 160 is oriented. The direction of the handlebar 500 and the direction of the horizontal support surface also have an included angle β, which is the same as the included angle β shown in fig. 7B. At this time, the included angle β is smaller than 90 degrees.

For example, in some examples, as shown in fig. 9A, 9B, 9C, and 9D, the handlebar 500 includes a grip 501, two levers 502, two links 503, a first pin 504, a spring collar 505, a second pin 506, a bracket 507, a third pin 508, a lever seat 509, a lever 510, a first bushing 511, an inner sleeve 512, a sleeve end cap 513, a second bushing 514, an outer sleeve 515, and a sleeve bottom cap 516.

For example, in some examples, the brace 507 is secured to a first end of the inner sleeve 512, and the brace 507 is fixedly coupled to a first end surface of the inner sleeve 512 by a bolt. The fixed connection between the support 507 and the inner sleeve 512 may be, for example, welding, riveting, or the like, which is not limited in the embodiment of the disclosure. The pull rod 510 is disposed within the support 507 and the inner sleeve 512, such that a portion of the inner sleeve 512 is disposed (e.g., sleeved) within the outer sleeve 515 and can rotate and move axially within the outer sleeve 515. The outer sleeve 515 is disposed in the through holes of the second ends of the second and third connecting

members

162 and 163 to fix the handlebar 500 to the frame 100. Relative axial movement between inner sleeve 512 and outer sleeve 515 can change the overall length of handlebar 500.

As shown in fig. 9B, 9C and 9D, the two levers 502 and the two links 503 are symmetrically disposed with respect to the bracket 507, and by the arrangement described below, it is possible to make the two levers 502 respectively in a horizontal state when the handlebars are expanded, as shown in fig. 9F, and in a vertical state when the handlebars are contracted, as shown in fig. 9G, corresponding to the state of the transformable vehicle in the bicycle state and the state of the balance vehicle, respectively.

In some examples, each shaft 502 has two pin holes with the same diameter at one end and a sleeve 501 fixed at the other end. The symmetrical sides of the support 507 include two lug portions, each of which is provided with a pin hole. The pin holes of the lug parts on both sides of the bracket 507 are respectively connected with the pin holes of the lug parts of the two levers 502 close to the bracket 507 through a revolute pair consisting of a second pin shaft 506, and the two levers 502 can rotate relative to the bracket 507. The pin holes on the outer sides of the two rods 502 are respectively connected with the pin holes on the first ends of the two connecting rods 503 through a revolute pair formed by a first pin 504. The pin holes at the second ends of the two connecting rods 503 are connected with the pin holes on the pull rod seat 509 through a revolute pair formed by the same third pin shaft 508. The lower end of the pull rod seat 509 is fixedly connected to the pull rod 510, and the lower end of the pull rod seat 509 is fixedly connected to the pull rod 510, for example, a threaded hole may be formed at the lower end of the pull rod seat 509, and the lower end of the pull rod seat 509 is fixedly connected to the pull rod 510 through a bolt (as shown). In addition, the lower end of the pull rod seat 509 and the pull rod 510 may also be fixedly connected by other methods, such as welding, riveting, etc., which is not limited in the embodiments of the present disclosure. The lower end of the support 507 is provided with a through hole with a diameter larger than the inner diameter of the first shaft sleeve 511 and smaller than the outer diameter of the first shaft sleeve 511. The first bushing 511 is mounted in a stepped bore at one end of the inner sleeve 512 adjacent the bracket 507. The pull rod 510 penetrates through the through hole at the lower end of the support 507 and is arranged inside the first shaft sleeve 511, and forms a sliding pair with the first shaft sleeve 511, and the first shaft sleeve 511 plays a guiding role. Spring collars 505 are provided at each end of each pin to limit movement of the pin along the axis of the pin hole. The first bushing 511 is made of, for example, copper or a copper alloy.

For example, in some examples, the tie rod 510 may also be a threaded rod. The screw is fixedly connected with the lower end of the pull rod seat 509, for example, a threaded hole is formed in the lower end of the pull rod seat 509 and connected with the screw, and the screw is fixed by the mounting nut. The disclosed embodiment is not limited to the structure of the pull rod 510.

For example, in some examples, inner sleeve 512 is non-rotatable with respect to outer sleeve 515, at least one flat surface is provided on an outer cylindrical surface of inner sleeve 512, sleeve end cap 513 is provided on a first end surface of outer sleeve 515, and sleeve end cap 513 is provided with a slot that is a clearance fit with inner sleeve 512 and that has a shape that is substantially equal to the shape of inner sleeve 512.

For example, the cross-sectional profile of the inner sleeve 512 is a non-centrosymmetric pattern, such as a triangle, polygon, oval, racetrack shape, and the like. For example, as shown in FIG. 9D, the cross-section of the inner sleeve 512 is racetrack shaped. Thus, the outer surface of the inner sleeve 512 comprises two opposing cylindrical surfaces and two opposing and parallel planar surfaces. That is, the cross-sectional shape of the inner sleeve 512 is a shape formed by a circle being tangent to two parallel straight lines, and the outer surface of the inner sleeve 512 is two cylindrical surfaces on the same circumference and opposite to each other, and two parallel flat surfaces and opposite to each other. Sleeve end cap 513 is provided with a slot having two opposing parallel sides that is substantially the same shape as the inner sleeve. It should be noted that the shape of the substantially same slot, including the slot, is the same as the shape of the inner sleeve 512 and has slight differences, so that the inner sleeve 512 can pass through the slot and does not rotate in the axial direction with respect to the outer sleeve 515. The vertical distance between the two parallel sides of the slot is substantially equal to the vertical distance between the two flat surfaces on the outer cylindrical surface of the inner sleeve 512. It should be noted that substantially equal means that the vertical distance between the two parallel sides of the slot is slightly greater than the vertical distance between the two planes on the outer cylindrical surface of the inner sleeve 512, so as to achieve that the inner sleeve 512 passes through the slot and does not rotate in the axial direction with respect to the outer sleeve 515. The flats of inner sleeve 512 and sleeve end cap 513 act to limit rotation between inner sleeve 512 and outer sleeve 515 in the direction of the axis of outer sleeve 515. The sleeve end cover 513 is fixedly connected with the outer sleeve 515 through bolts, the second shaft sleeve 514 is installed in a stepped hole at one end of the outer sleeve 515, and the inner sleeve 512 penetrates through a slotted hole in the sleeve end cover 513 and is arranged on the inner side of the second shaft sleeve 514 to form a sliding pair with the second shaft sleeve 514. The slots in sleeve end cap 513 are a clearance fit with the outer surface of inner sleeve 512. The second bushing 514 serves as a guide. The second bushing 514 is made of copper or a copper alloy, for example. A sleeve bottom cover 516 is fixedly arranged at the bottom end of the outer sleeve 515.

For example, in some examples, as shown in fig. 9E, the handlebar 500 further includes a handlebar drive for varying the overall length of the handlebar 500 and the folding and unfolding of the handlebar 500.

In one example, the driving device of the handlebar includes a first motor 519, a first drag wheel 518, a first traction rope, and a first guide wheel 517. The first dragging wheel 518 is connected with an output shaft of the first motor 519 and is driven by the first motor 519 to rotate, one end of the first traction rope is wound on the first dragging wheel 518, and after the first traction rope passes through the first guide wheel 517, the other end of the first traction rope is connected with the inner sleeve 512. The inner sleeve 512 reciprocates axially relative to the outer sleeve 515 under drive of the first pull-cord. The handlebar 500 also includes a positioning member 5113, and the second end of the inner sleeve 512 is coupled to the positioning member 5113 via a cable. During the upward movement of the inner sleeve 512 relative to the outer sleeve 515, the positioning member 5113 ascends along with the inner sleeve, and when the positioning member 5113 contacts the sleeve bottom cover 516 of the outer sleeve 515, the movement of the inner sleeve 512 is stopped.

For example, the driving device of the handle bar further includes a second motor 5112, a second drawing wheel 5111, a second traction rope, and a second guide wheel 5110. The second dragging wheel 5111 is connected to an output shaft of the second motor 5112 and is driven by the second motor 5112 to rotate, one end of the second traction rope is wound around the second dragging wheel 5111, and after passing through the second guiding wheel 5110, the other end of the second traction rope is connected to the pull rod 510. The pull rod 510 is driven by the first pulling rope to reciprocate in the axial direction relative to the inner sleeve 512, so as to drive the two handle rods 502 to rotate relative to the bracket 507, thereby realizing the folding and unfolding of the handlebar 500.

For example, in other examples, a second pull cord may be coupled to the pull rod socket 509, and the second pull cord drives the pull rod socket 509 to reciprocate so as to axially reciprocate the pull rod 510 relative to the inner sleeve 512.

For example, in other examples, the driving device of the handlebar may also be a screw pair driving device, a pneumatic driving device or a hydraulic driving device, and the reciprocating movement of the inner sleeve 512 relative to the outer sleeve 515 and the reciprocating movement of the inner pull rod 510 relative to the inner sleeve 512 are driven by pneumatic or hydraulic means, which is not limited by the disclosed embodiments. In the above embodiment, relative movement between pull rod 510 and inner sleeve 512 of handlebar 500 and bracket 507 controls the collapsing of the handlebar, and movement between inner sleeve 512 and outer sleeve 515 of handlebar 500 controls the telescoping movement of the handlebar. Specifically, for the handlebar shown in FIG. 9A, when one or both of the two levers 502 partially in the horizontal state are forced downward to rotate toward the inner sleeve 512 around the second pin 506, the connecting rod 503 is driven upward, and accordingly the pull rod 10 is driven upward in the inner sleeve 512, so that the handlebar contracted state shown in FIG. 9F can be realized; alternatively, for the handlebar illustrated in FIG. 9A, when one or both of the two levers 502 partially in the horizontal position are forced upward to pivot away from inner sleeve 512 about second pin 506, link 503 will be moved downward, and pull rod 10 will be correspondingly moved downward within inner sleeve 512, thereby achieving the handlebar open position illustrated in FIG. 9G.

As shown in fig. 10, when the convertible vehicle 1000 is in the balance vehicle state, the planes of the brackets on both sides of the first wheel 200 and the planes of the brackets on both sides of the second wheel 300 are parallel to the second direction Y and perpendicular to the first direction X. The front end of the seat 400 faces in a direction perpendicular to the first direction X and parallel to the second direction Y, and parallel to the direction in which the first wheel 200 and the second wheel 300 are located; at this time, the seat 400 is located approximately at the center of the frame. The handlebar 500 is in the same direction as the handlebar support assembly 160 in the direction J. The handlebar 500 is at an angle β with respect to the horizontal support surface, wherein the angle β is about 90 degrees. The distance between the first wheel 200 and the second wheel 300 is smaller than the distance between the first wheel 200 and the second wheel 300 in the bicycle state as shown in fig. 8. The shaft 502 of the handle 500 is folded and the inner sleeve 512 is retracted into the outer sleeve 515.

For example, in some examples, the transformation process of the transformable vehicle 1000 from the bicycle state as shown in fig. 8 to the balance vehicle state as shown in fig. 10, as shown in fig. 11 and 12, includes the steps as follows.

In step 101, the first wheel 200 and the second wheel 300 are switched from the first direction X to the second direction Y by the first wheel steering mechanism 110 and the second wheel steering mechanism 120. As shown in fig. 11, the first steering motor 113 and the second steering motor 123 are driven to rotate the first rotating shaft 112 and the second rotating shaft 122, so that the first wheel 200 and the first wheel bracket 111 are switched from the first direction X to the second direction Y, and the second wheel 300 and the second wheel bracket 121 are switched from the first direction X to the second direction Y.

Step 102, the seat 400 is switched from the first direction X to the second direction Y by the first seat steering mechanism 130, and the distance between the first wheel 200 and the second wheel 300 is decreased, the angle between the handlebar 500 and the horizontal support surface is changed from less than 90 degrees to about 90 degrees. As shown in fig. 12, the first driving motor 191 rotates the worm 195, thereby rotating the first worm wheel 193 and the second worm wheel 194, and the first worm wheel 193 and the second worm wheel 194 rotate the fourth rotating shaft 142 and the third rotating shaft 151, thereby rotating the rotating member 152, the first gear 143, and the second gear 183. The rotation of the rotating component 152 causes the first link 153 to swing, so as to drive the second link 154 to slide in the first slide rail 155 toward the handlebar 500, and further change the included angle between the handlebar 500 and the horizontal supporting surface from less than 90 degrees to about 90 degrees. The rotation of the first gear 143 drives the first rack 137 to move, so that the seat base 134 moves, the first cam contact 135 touches the cam 141 and then is shifted, and the seat support rod 131 is driven to rotate, so that the seat 400 is converted from the first direction X to the second direction Y. The rotation of the second gear 183 moves the second rack 184, so that the slider 181 moves along the second track 185 toward the first wheel 200, thereby reducing the distance between the first wheel 200 and the second wheel 300.

Step 103, the handlebar 500 is folded and retracted. As shown in FIG. 10, when a downward force is applied to the handle 501 of two rods 502, the handle 500 is moved relatively between the pull rod 510 and the inner sleeve 512 to gradually decrease the angle between the rods 502 and the connecting rod 503 until the rods 502 and the connecting rod 503 are substantially parallel, and the rods 502 are folded. And, inner sleeve 512 is retracted into outer sleeve 515 by movement between inner sleeve 512 and outer sleeve 515.

The above steps 101-103 are not limited to the above sequence, for example, three steps may be performed simultaneously, or any two steps may be performed simultaneously, which is not limited by the embodiment of the disclosure.

For example, in some examples, the process of transforming the transformable vehicle 1000 from the balance state shown in fig. 10 to the bicycle state shown in fig. 8, as shown in fig. 12 and 13, is the reverse of the process of transforming the transformable vehicle 1000 from the bicycle state shown in fig. 8 to the balance state shown in fig. 10, which comprises the steps as shown below.

Step 104, the handlebar 500 is unfolded and stretched. The transformable vehicle is in the state shown in fig. 12. As shown in FIG. 12, when an upward force is applied to the handle 501 of two handles 502, the handle 500 gradually increases the angle between the handles 502 and the connecting rod 503 through the relative movement between the pull rod 510 and the inner sleeve 512 until the handles 502 and the connecting rod 503 are aligned, and at this time, the handles 502 are fully opened. At the same time, the inner sleeve 512 is stretched by the movement between the inner sleeve 512 and the outer sleeve 515 to be exposed above the outer sleeve 515.

Step 105, the seat 400 is switched from the second direction Y to the first direction X by the first seat steering mechanism 130, and the distance between the first wheel 200 and the second wheel 300 increases, and the angle between the handlebar 500 and the horizontal supporting surface changes from about 90 degrees to less than 90 degrees. As shown in fig. 13, the first driving motor 191 rotates the worm 195, and the rotation direction of the worm 195 is opposite to the rotation direction in step 102, so that the first worm wheel 193 and the second worm wheel 194 are rotated, and the fourth rotating shaft 142 and the third rotating shaft 151 are rotated by the first worm wheel 193 and the second worm wheel 194, so that the rotating member 152, the first gear 143, and the second gear 183 are rotated. The rotation of the rotating component 152 causes the first link 153 to swing, so as to drive the second link 154 to slide in the first slide rail 155 in a direction away from the handlebar 500, thereby changing the included angle between the handlebar 500 and the horizontal supporting surface from about 90 degrees to less than 90 degrees. The rotation of the first gear 143 drives the first rack 137 to move, so that the seat base 134 moves, the second cam contact 136 is shifted after contacting the cam 141, and the seat support rod is driven to rotate, so that the seat is converted from the second direction Y to the first direction X. The rotation of the second gear 183 drives the second rack 184 to move, so that the slider 181 moves along the second slide track 185 in a direction away from the first wheel 200, thereby increasing the distance between the first wheel 200 and the second wheel 300.

At step 106, the first and

second wheels

200 and 300 are switched from the second direction Y to the first direction X by the first and second

wheel steering mechanisms

110 and 120. As shown in fig. 8, the first and second

rotating shafts

112 and 122 are driven by the first and

second steering motors

113 and 123 to rotate, so that the first wheel 200 and the first wheel bracket 111 are switched from the second direction Y to the first direction X, and the second wheel 300 and the second wheel bracket 121 are switched from the second direction Y to the first direction X. The rotation directions of the first rotating shaft 112 and the second rotating shaft 122 are opposite to the rotation directions of the first rotating shaft and the second rotating shaft in step 101.

The above steps 104-106 are not limited to the above sequence, for example, three steps may be performed simultaneously, any two steps may be performed simultaneously, or

steps

106 or 105 are performed first, etc., which is not limited by the embodiment of the disclosure.

For example, in some examples, as shown in fig. 8 and 11, the convertible car 1000 further includes a first travel drive motor 1100, a second travel drive motor 1200, and an attitude sensor 1300. The first travel driving motor 1100 is mounted on the hub of the first wheel 200, and the second travel driving motor 1200 is mounted on the hub of the second wheel 300. For example, the posture sensor 1300 is provided on the seat base or at a position on the case 103. The first travel driving motor 1100 and the second travel driving motor 1200 are used to drive the first wheel and the second wheel for travel. The attitude sensor 1300 is used to sense the attitude of the transformable vehicle 1000, and for example, detects information such as acceleration and angular velocity of the transformable vehicle during travel.

For example, in some examples, the convertible vehicle 1000 further includes a controller in signal connection with the first wheel steering mechanism 110, the second wheel steering mechanism 120, the first seat steering mechanism 130, and configured to control the first wheel steering mechanism 110, the second wheel steering mechanism 120, and the first seat steering mechanism 130 to simultaneously position the first wheel 200, the second wheel 300, and the seat 400 in the first direction X or the second direction Y.

For example, the controller may be a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a Programmable Logic Controller (PLC), etc., and the embodiment of the present disclosure is not limited thereto.

For example, in some examples, the controller is further connected to the first travel drive motor 1100, the second travel drive motor 1200, and the attitude sensor 1300, and is configured to receive detected information of the attitude sensor 1300, for example, information of acceleration and angular velocity of the transformable vehicle 1000 during travel, to control travel, for example, speed, direction, and the like, of the transformable vehicle 1000 by the first travel drive motor 1100 and the second travel drive motor 1200.

For example, in some examples, the first and

second motors

519, 5112 of the handlebar 500 may also be coupled to a controller, which controls the motors to control the relative movement between the pull rod 510 and the inner sleeve 512 of the handlebar 500, thereby effecting folding and unfolding of the handlebar. In some embodiments, the controller may further control the relative movement between inner sleeve 512 and outer sleeve 515 of handlebar 500 to control the overall length of the handlebar. For example, in some examples, a rotational position sensor is disposed between the inner sleeve 512 and the outer sleeve 513 of the handlebar to detect the relative rotation therebetween and the rotation amplitude, the rotational position sensor is in signal connection (e.g., wired connection) with a controller, and the controller receives the detection result of the rotational position sensor and controls the first steering motor 113 to operate to rotate the first wheel 200, thereby achieving the steering of the deformed vehicle in the bicycle state during the advancing process. The rotary position sensor may take various forms such as a contact type, a non-contact type, and the like. For example, one type of contact type rotational position sensor operates on the principle that a voltage that changes in accordance with rotation is output based on impedance that changes with rotation, and the rotational angle can be easily obtained by detecting the voltage.

For example, in some examples, the first and second

travel drive motors

1100 and 1200 may be brushless motors, and the attitude sensors may be gyro sensors.

For example, in some examples, a battery is installed in the frame 100 of the modified vehicle 1000, and for example, the battery may be provided in the case 103 to supply power to components that need to use electric energy, such as the first travel driving motor, the second travel driving motor, the first steering motor, and the second steering motor. For example, the battery may be a primary battery or a secondary battery, and the secondary battery may include a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, a lithium ion battery, or the like.

For example, in some examples, a housing of the frame 100 may be added in addition to the box 103 of the frame 100 of the convertible vehicle 1000 to increase the safety and aesthetic appeal of the convertible vehicle 1000.

For the frame and the transformable vehicle provided by the embodiment at least, the frame can realize the conversion of the directions of the first wheel and the second wheel through the first wheel steering mechanism and the second wheel steering mechanism and realize the conversion of the directions of the seat through the first seat steering mechanism, so that the frame can be realized as the frame for the bicycle and the frame for the balance vehicle, and the transformable vehicle comprising the frame can be used as the bicycle and the balance vehicle, so that the transformable vehicle can run on various complex road surfaces and can bring better travel experience for users.

The following points need to be explained:

(1) the drawings of the embodiments of the disclosure only relate to the structures related to the embodiments of the disclosure, and other structures can refer to the common design.

(2) Without conflict, embodiments of the present disclosure and features of the embodiments may be combined with each other to arrive at new embodiments.

The above is only a specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present disclosure, and shall be covered by the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A vehicle frame, wherein the vehicle frame extends along a first direction and is provided with a first end and a second end which are opposite to each other in the first direction, the first end of the vehicle frame is used for connecting a handlebar and a first wheel bracket, the second end of the vehicle frame is used for connecting a second wheel bracket,

the frame includes:

a wheel moving assembly and a first driving device,

wherein the wheel moving assembly is coupled to the second wheel carriage and configured to move the second wheel carriage in the first direction,

the first driving device is connected with the wheel moving assembly and used for driving the wheel moving assembly to move in the first direction and adjusting the distance between the second wheel bracket and the first end of the frame,

the vehicle frame further comprises a connecting rod used for adjusting the distance between the first end and the second end of the vehicle frame along the first direction, the wheel moving assembly comprises a sliding block and a sliding rail used for adjusting the distance,

the wheel moving assembly is connected with the second wheel bracket through a first end of the connecting rod, a second end of the connecting rod is connected with the sliding block for adjusting the distance, and the sliding block is located on a sliding rail for adjusting the distance and can move in the first direction along the sliding rail.

2. The vehicle frame of claim 1, further comprising:

a seat movement assembly for coupling with a seat and configured to move the seat in the first direction,

the first driving device is further connected with the seat moving assembly and used for driving the seat moving assembly to move in the first direction and adjusting the distance between the seat and the first end of the frame.

3. The vehicle frame of claim 2, wherein the vehicle frame further comprises a moving track, and the seat moving assembly comprises a seat support rod and a seat base, wherein a first end of the seat support rod is configured to be connected to a seat and a second end of the seat support rod is connected to the seat base, and the seat base is disposed on the moving track and movable in a first direction along the moving track.

4. The vehicle frame of claim 3, wherein the first drive comprises a first gear, the vehicle frame further comprises an A-axis, and

the seat base includes a first rack of teeth,

wherein the first gear is arranged at one end of the rotating shaft A, the first gear is meshed with the first rack, the rotating shaft A drives the first gear to rotate,

the first gear drives the first rack to move in the first direction when rotated, so that the seat moving assembly moves in the first direction.

5. The vehicle frame of claim 4, wherein the wheel moving assembly further comprises a second gear, a second rack, and a B shaft, the slider is fixedly connected with the second rack,

wherein the second gear is arranged at one end of the rotating shaft B, the second gear is meshed with the second rack, the rotating shaft B drives the second gear to rotate,

when the second gear rotates, the second rack is driven to move in the first direction, so that the wheel moving assembly moves in the first direction.

6. The frame of claim 5, wherein the axle A and the axle B are the same axle.

7. The vehicle frame of claim 6, wherein the first drive arrangement further comprises: the output shaft of the first driving motor is connected with the first driving shaft so as to drive the first driving shaft to rotate, and the first driving shaft is in transmission connection with the rotating shaft A so as to drive the rotating shaft A.

8. The vehicle frame of claim 6, wherein the first drive arrangement further comprises: and the rotating shaft C is in transmission connection with the rotating shaft A.

9. The vehicle frame of claim 8, wherein the first drive arrangement further comprises: a worm, a first worm wheel, a second worm wheel and a second driving motor,

wherein, first worm wheel with A pivot fixed connection, the second worm wheel with C pivot fixed connection, the worm with first worm wheel and second worm wheel transmission is connected, second driving motor with the worm is connected in order to drive the worm rotates.

10. The vehicle frame of claim 8, wherein the first drive arrangement further comprises: a third gear and a third driving motor,

the third gear is arranged on the rotating shaft C, and the rotating shaft C is meshed with the first gear or the second gear, so that the rotating shaft C is in transmission connection with the rotating shaft A, or

The first driving device further comprises a fourth gear, and the fourth gear is fixedly arranged on the rotating shaft A and meshed with the third gear, so that the rotating shaft C is in transmission connection with the rotating shaft A.

11. The vehicle frame of any of claims 3-10, further comprising:

a seat steering mechanism cooperating with the second end of the seat support bar to rotate the seat support bar to fix the seat in the first direction and in a second direction perpendicular to the first direction, and to switch between the first direction and the second direction, respectively.

12. The vehicle frame of claim 11, wherein the seat steering mechanism includes a cam, a first cam contact, and a second cam contact,

wherein the seat support bar is rotatably mounted on the seat base and the first and second cam contacts are disposed at a second end of the seat support bar, the cam being fixed in the first direction,

wherein the seat base moves in the first direction relative to the cam,

the first cam contact piece and the second cam contact piece are matched with the cam, and in the process that the seat base moves relative to the cam, the first cam contact piece and the second cam contact piece are respectively stirred by the cam to fix the seat in the first direction and the second direction respectively and switch between the first direction and the second direction.

13. A cart, comprising:

the vehicle frame of any of claims 1-12,

a first wheel bracket connected with a first end of the frame,

a second wheel bracket connected to a second end of the frame,

a first wheel and a second wheel mounted on the first wheel support and the second wheel support, respectively, an

And the seat is arranged on the frame.

14. The cart of claim 13, further comprising:

a controller in signal connection with the wheel movement assembly of the frame and configured to control the wheel movement assembly to adjust a distance between the second wheel bracket and the first end of the frame.