A ball wheel diagonal drive toy car

Abstract

The application provides a ball wheel oblique driving toy car, which comprises a car body and four ball wheels, and is characterized in that each ball wheel is connected with a driving assembly for driving, four driving assemblies are installed in the car body, the angle between the motor rotating shaft of the driving assembly and the length direction of the car body is an acute angle, and each ball wheel rotates forward and reversely with the motor rotating shaft as the axis under the driving of the driving assembly. Therefore, by controlling the forward rotation or reverse rotation of each ball wheel, different walking modes of the toy car can be driven, and the toy car can realize more than ten kinds of actions such as advancing, retreating, left turning, right turning, left moving, right moving, left rotation in place, right rotation in place, advancing in the left front direction, advancing in the right front direction, retreating in the left rear direction and retreating in the right rear direction, so that the toy car has rich actions and strong playability, can realize simulated walking modes and has other unique walking modes, and greatly improves the playing fun of children.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of toy cars, in particular to a ball wheel oblique driving toy car. BACKGROUND

[0002] Toy cars occupy a relatively wide market in the toy field, and the existing toy cars have various styles and functions. However, the wheels of the existing toy cars are generally in the traditional cylindrical shape, the wheel shaft is vertically arranged on the vehicle body in the length direction of the vehicle body, the inner side of the wheel is connected with the wheel shaft, and a gear set is arranged on the wheel shaft and connected with the motor in the vehicle body. The wheel shaft is driven to rotate by the motor, and the wheels on both sides are driven to rotate at the same speed, so that the toy car moves forward or backward. That is, the rotation axis of the wheel is perpendicular to the moving direction of the toy car. To realize the left and right turning of the toy car, a steering mechanism is arranged at the middle position of the wheel shaft, and the wheel shaft is deflected by controlling the steering mechanism, so as to realize the turning of the toy car. The toy car with the traditional cylindrical wheel can only realize forward movement, backward movement and turning, and the turning radius is large, the action is single, and the playability is poor, so it is difficult to improve the play fun of children.

[0003] At present, some toy cars are designed with ball-shaped wheels to change the overall shape of the toy car. However, the driving mechanism for driving the ball-shaped wheel to rotate is very complex, and an additional friction wheel is needed to engage with the ball-shaped wheel to drive the ball-shaped wheel to rotate. In order to realize the forward movement or backward movement, left movement or right movement of the toy car, two different friction wheels for vertical rotation and horizontal rotation are needed, and different friction wheels are needed to engage with the ball-shaped wheel to drive the toy car to move in different directions. In order to enable the ball-shaped wheel to rotate vertically and horizontally, a supporting rod and a ring are needed to connect the ball-shaped wheel. Such design makes the overall structure of the toy car particularly complex, which affects the aesthetic appearance of the toy car, and the cost is high. Moreover, the toy car can only realize four actions of forward movement, backward movement, left movement and right movement, and the action is still single. Moreover, the left and right turning functions cannot be realized, so that the toy car loses the simulation effect and affects the play interest. SUMMARY

[0004] The purpose of the present application is to provide a ball wheel oblique driving toy car to effectively solve the problems of the traditional cylindrical wheel shape, single action of the toy car, lack of playability, or complex structure of the existing ball-shaped wheel toy car, single action, transmission and motion distortion.

[0005] The technical solution of the present application is as follows:

[0006] The application discloses a toy car with four ball wheels, which comprises a car body and four ball wheels, wherein the four ball wheels are respectively arranged on the front and rear sides of the car body, each ball wheel is connected with a driving assembly, four driving assemblies are arranged in the car body, the angle between the rotation axis of the motor of the driving assembly and the length direction of the car body is an acute angle, and each ball wheel rotates forward and reversely around the rotation axis of the motor under the driving of the driving assembly.

[0007] In some embodiments, the ball wheel comprises two half-sphere shells and a fixing member, the fixing member is connected with one half-sphere shell on each side to form a sphere, and the edge of the fixing member extends to form a connecting hole connected with the driving assembly, so that the fixing member rotates around the hole axis of the connecting hole under the driving of the driving assembly.

[0008] Further, the surface of the half-sphere shell is provided with anti-skid convex patterns at intervals.

[0009] In some embodiments, the ball wheel further comprises two half-sphere inner shells, the half-sphere inner shells are connected with the fixing member, the inner edge of the half-sphere shell is provided with a convex edge, and the convex edge of the half-sphere shell is buckled on the edge of the half-sphere inner shell to realize the connection with the fixing member.

[0010] Further, the middle of the bottom of the concave cavity of the half-sphere inner shell extends to the ball center direction to form a connecting column, the fixing member is provided with a through hole in the middle, the connecting column of one half-sphere inner shell passes through the through hole, and the connecting columns of the two half-sphere inner shells are connected and fixed by bolts after being butted, so that the two half-sphere inner shells can rotate around the connecting column relative to the fixing member.

[0011] In some embodiments, the driving assembly comprises a driving shell, a motor and a gear set, the motor and the gear set are arranged on the driving shell, the rotation axis of the motor is sleeved with an input gear, the input gear is engaged with the gear set, the output gear of the gear set coaxially extends to form an axle column, the axle column is connected with the ball wheel to drive the rotation of the ball wheel, and the driving shell is locked on the car body.

[0012] In some embodiments, the toy car further comprises a control chip, the control chip is arranged in the car body, the control chip is electrically connected with the four driving assemblies, the control chip controls the forward rotation or the reverse rotation of each driving assembly, and the rotation of the ball wheel in different directions is driven by the four driving assemblies to control different walking modes of the toy car.

[0013] In some embodiments, the vehicle body comprises a vehicle bottom assembly and a vehicle shell assembly, the driving assembly is screwed on the vehicle bottom assembly, a battery housing is arranged in the middle of the vehicle bottom assembly, and a battery is arranged in the battery housing, and the four driving assemblies are electrically connected with the battery.

[0014] Further, a part of the shell assembly is transparent or translucent, an LED lamp assembly is arranged at a position corresponding to the shell, and the LED lamp assembly is electrically connected with the battery.

[0015] In some embodiments, the angle between the rotation axis of the motor of the driving assembly and the length direction of the vehicle body is 45°.

[0016] The present application has the following advantages:

[0017] 1. Each ball wheel of the present application is driven by a separate driving assembly, and the turning direction of the ball wheel driven by the driving assembly is an acute angle with the length direction of the vehicle body, no matter the turning direction is forward or reverse, so that the toy vehicle can perform different walking modes through the forward or reverse turning of each ball wheel, and can perform more than ten kinds of actions such as forward movement, backward movement, left turn, right turn, left movement, right movement, left rotation in place, right rotation in place, left front movement, right front movement, left rear backward movement, right rear backward movement, etc., so that the toy vehicle has rich actions and strong playability, can realize simulated walking modes and other unique walking modes, and greatly improves the playing fun of children.

[0018] 2. The ball wheel of the present application is directly connected with the driving assembly and is driven to rotate by the driving assembly, and the driving assembly is installed in the vehicle body, so that the ball wheel does not need an additional support rod or a ring for fixation, and the structure is relatively simple, does not affect the overall simulation effect of the toy vehicle, and the ball wheel instead of the traditional cylindrical wheel makes the toy vehicle more unique and beautiful in modeling, and is more favored by children.

[0019] 3. Since the turning direction of the ball wheel is no longer the turning direction of the traditional cylindrical wheel, but is an oblique angle turning, various walking modes are realized through the cooperation of the four ball wheels, so that children can learn the principle of mechanical transmission in the playing process, and the motion mode of an object can be changed through different directions of force, achieving the effect of combining teaching with fun.

[0020] 4. Since the left turn and the right turn are realized by left rotation in place by 90° and right rotation in place by 90°, the turning radius is very small, so that the toy vehicle can freely turn in a narrow space, and the play interest is not affected.

[0021] 5. Furthermore, since it is equipped with a control chip, it can be controlled by a remote control. The remote control sends a signal to the control chip, which then controls the four drive components to rotate in the forward or reverse direction, thereby achieving the desired movement of the toy car for the child. It is highly operable and fun.

[0022] The invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the ball wheel oblique drive toy car of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the ball wheel and drive assembly of the present invention.

[0025] Figure 3 This is an exploded structural diagram of the ball wheel and drive assembly of the present invention.

[0026] Figure 4 This is an exploded structural diagram of one embodiment of the ball wheel of the present invention;

[0027] Figure 5 This is an exploded structural diagram of another embodiment of the ball wheel of the present invention;

[0028] Figure 6 for Figure 5 A cross-sectional view of the ball wheel according to the embodiment shown;

[0029] Figure 7 This is an exploded structural diagram of the driving component of the present invention;

[0030] Figure 8 This is a three-dimensional structural diagram of the connection between the ball wheel and drive assembly and the vehicle underbody assembly of the present invention;

[0031] Figure 9 This is a schematic diagram of the internal structure of the vehicle body assembly of the present invention;

[0032] Figure 10 This is a schematic diagram showing the turning of each ball wheel in the forward-driving state of the toy car driven by the ball wheels of the present invention.

[0033] Figure 11 This is a schematic diagram showing the steering of each ball wheel in the backward state of the toy car driven obliquely by the ball wheels according to the present invention;

[0034] Figure 12 This is a schematic diagram of the turning of each ball wheel in the left-hand rotation state of the ball wheel-driven toy car in the present invention;

[0035] Figure 13 This is a schematic diagram of the turning of each ball wheel in the toy car of the present invention in a right-hand rotation state driven by the ball wheel at an angle;

[0036] Figure 14 Schematic diagram of steering of each ball wheel in left front 45-degree angle advancing state of the toy car driven by the ball wheels according to the application;

[0037] Figure 15 Schematic diagram of steering of each ball wheel in right front 45-degree angle advancing state of the toy car driven by the ball wheels according to the application;

[0038] Figure 16 Schematic diagram of steering of each ball wheel in left rear 45-degree angle retreating state of the toy car driven by the ball wheels according to the application;

[0039] Figure 17 Schematic diagram of steering of each ball wheel in right rear 45-degree angle retreating state of the toy car driven by the ball wheels according to the application;

[0040] Figure 18 Schematic diagram of steering of each ball wheel in left moving state of the toy car driven by the ball wheels according to the application;

[0041] Figure 19 Schematic diagram of steering of each ball wheel in right moving state of the toy car driven by the ball wheels according to the application.

[0042] Reference signs:

[0043] Vehicle body 1;

[0044] Vehicle bottom assembly 11, vehicle shell assembly 12, battery shell 13, LED lamp assembly 14;

[0045] Ball wheel 2;

[0046] Left front ball wheel 201, right front ball wheel 202, left rear ball wheel 203, right rear ball wheel 204;

[0047] Half-sphere outer shell 21, anti-skid convex pattern 211, convex edge 212, half-sphere inner shell 22, connecting column 221, fixing member 23, through hole 230, fixing ring 231, fixing sleeve 232, connecting hole 24, detachable part 241, circular recess 25;

[0048] Driving shell 3;

[0049] Front shell 31, rear shell 32, motor box 33, circular hole 34, locking member 35;

[0050] Motor 4;

[0051] Rotating shaft 41, input gear 42;

[0052] Gear set 5;

[0053] Double gear 51, output gear 52, shaft column 53, screw hole 54;

[0054] Control chip 6. DETAILED DESCRIPTION

[0055] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the same or like component have the same or similar designations. The embodiments described below are presented by way of example only and are not intended to limit the present application unless otherwise specified.

[0056] In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the terms "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features defined with "first", "second" can explicitly or implicitly include one or more of the features, which are used to distinguish the described features, and there is no order or importance.

[0057] In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0058] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "fit", "connect", "connection", "mount", should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] The ball wheel 2 oblique driving toy car of the present application is described below with reference to the drawings.

[0060] As Figure 1 and Figure 8As shown, the present application relates to a slant driving toy car with four ball wheels 2, which comprises a car body 1 and four ball wheels 2, the four ball wheels 2 are respectively located at the front two sides and the rear two sides of the car body 1, that is, the four ball wheels 2 are respectively left front ball wheel 201, right front ball wheel 202, left rear ball wheel 203 and right rear ball wheel 204, just like a real car. Its characteristics are that each ball wheel 2 is connected with a driving assembly for driving, and the four driving assemblies are installed in the car body 1, the motor 4 rotating shaft 41 of the driving assembly is at an acute angle with the length direction of the car body 1, and each ball wheel 2 rotates forward and backward with the motor 4 rotating shaft 41 as the axis, so that different walking modes of the toy car can be realized, and the toy car can move forward, backward, left turn, right turn, left shift, right shift, left rotation in place, right rotation in place, left front direction forward, right front direction forward, left rear direction backward, right rear direction backward and other ten kinds of actions, so that the toy car has rich actions and strong playability, which can realize the simulation walking mode and other unique walking modes, greatly improving the playing fun of children; at the same time, since the rotating direction of the ball wheel 2 is no longer the rotating direction of the traditional cylindrical wheel, but the slant angle rotating direction, various walking modes are realized through the cooperation of the four ball wheels 2, so that children can learn the principle of mechanical transmission in the playing process, and the motion mode of the object can be changed through different direction force, achieving the effect of combining teaching with fun.

[0061] The ball wheel 2 of the present application can be a complete ball, and a connecting hole 24 is arranged on the ball along the axis to connect with the driving assembly; or it can be composed of two half ball shells 21 and a fixing piece 23, as shown in Figure 4 As shown, the fixing piece 23 is connected with one half ball shell 21 on each side to form a ball as a whole, and the edge of the fixing piece 23 extends out of a connecting hole 24 to connect with the driving assembly, and the fixing piece 23 is driven to rotate around the hole axis of the connecting hole 24, and the hole axis of the connecting hole 24 coincides with the diameter axis of the ball wheel 2. Therefore, the ball wheel 2 can rotate forward or backward along the direction of the hole axis. In order to prevent the ball wheel 2 from slipping with the ground or table during rotation, the present application is provided with anti-skid protrusions 211 on the surface of the ball wheel 2, that is, on the surface of the half ball shell 21, so that the ball wheel 2 has anti-skid function. Specifically, the anti-skid protrusions 211 can be dot columnar protrusions on the surface of the half ball shell 21, or as shown in Figure 2 and Figure 3 The anti-skid protrusions 211 are ring protrusions on the surface of the ball wheel 2.

[0062] In another embodiment, as shown in Figure 5 and Figure 6As shown, the ball wheel 2 of the embodiment comprises two half-sphere outer shells 21, two half-sphere inner shells 22 and a fixing member 23, wherein the half-sphere inner shells 22 are connected with the fixing member 23, and the connection mode can be relatively fixed connection, such as screw locking, or relatively rotatable connection, such as Figure 6 As shown, a connecting column 221 is extended from the middle of the concave bottom of the half-sphere inner shell 22 to the center of the ball, and a through hole 230 is opened in the middle of the fixing member 23, wherein the connecting column 221 of one half-sphere inner shell 22 passes through the through hole 230, and the connecting columns 221 of the two half-sphere inner shells 22 are connected by bolts after abutting, so that the two half-sphere inner shells 22 can rotate around the connecting column 221 relative to the fixing member 23 after connection. The half-sphere inner shell 22 can be made of hard glue or soft glue. The half-sphere outer shell 21 of the embodiment is connected with the half-sphere inner shell 22 in multiple modes, such as screw locking and glue bonding. In this embodiment, a convex edge 212 is arranged on the inner side of the edge of the half-sphere outer shell 21, and the half-sphere outer shell 21 is sleeved on the half-sphere inner shell 22, so that the convex edge 212 of the half-sphere outer shell 21 is buckled at the edge of the half-sphere inner shell 22, thereby realizing the connection of the half-sphere outer shell 21 with the half-sphere inner shell 22 and the fixing member 23. Similarly, the half-sphere outer shell 21 can be made of hard glue or soft glue. In order to improve the stability of the toy car, the half-sphere outer shell 21 of the embodiment is made of soft glue, and the elasticity of the soft glue is used to make the convex edge 212 and the half-sphere inner shell 22 buckle firmly. In addition, the fixing member 23 of the embodiment comprises a fixing ring 231 and a fixing sleeve 232, wherein the fixing sleeve 232 is sleeved on the fixing ring 231 to wrap the fixing ring 231, and the fixing ring 231 and the fixing sleeve 232 are connected by screws. The fixing sleeve 232 can also be made of soft glue, so as to ensure that the surface of the whole ball wheel 2 has a certain elastic deformation, thereby improving the stability of the toy car. The fixing ring 231 of the embodiment is provided with a connecting hole 24 in the radial direction, and the connecting hole 24 is a hexagonal hole. The shaft column 53 on the corresponding driving member is a hexagonal column, and the hexagonal column and the hexagonal hole are matched to realize good transmission of rotation force.

[0063] As shown, Figure 7As shown, the driving assembly of the embodiment comprises a driving housing 3, a motor 4 and a gear set 5. The driving housing 3 comprises a front housing 31 and a rear housing 32. The outer end surface of the rear housing 32 is outwardly provided with a motor box 33 at the upper position. The motor 4 is installed in the motor box 33. The rotating shaft 41 of the motor 4 passes through the hole provided on the motor box 33 and extends into the inner end of the rear housing 32. The input gear 42 is sleeved on the rotating shaft 41 extending into the inner end of the rear housing 32. The gear set 5 in the driving housing 3 comprises three gears in total, two of which are double gears 51 and the other is an output gear 52. The large-diameter gear of one of the double gears 51 is engaged with the input gear 42. The small-diameter gear of the double gear 51 is engaged with the large-diameter gear of the other double gear 51. The small-diameter gear of the other double gear 51 is engaged with the output gear 52. Therefore, the two double gears 51 realize the function of accelerating the output gear 52. The three gears are rotatably installed in the space formed by the front housing 31 and the rear housing 32. The front housing 31 of the embodiment is coaxially provided with a circular hole 34 with the output gear 52. The output gear 52 is coaxially extended with a shaft column 53. The shaft column 53 extends out of the circular hole 34 to the outside of the driving housing 3 to be inserted and connected with the connecting hole 24 of the ball wheel 2, thereby driving the ball wheel 2 to rotate.

[0064] Further, in order to ensure that the driving assembly can drive the ball wheel 2 to rotate after being connected with the ball wheel 2 and ensure that the ball wheel 2 will not be separated from the driving assembly, i.e. will not be separated from the vehicle body 1, the connecting hole 24 of the ball wheel 2 is designed as two detachable parts. Figure 5 As shown, the connecting hole 24 is designed as two detachable parts. One part is integrally formed with the fixing ring 231. The other part is locked by a screw. Meanwhile, a circular groove 25 with a diameter larger than the maximum hole diameter of the hexagonal hole is provided at the deep end of the connecting hole 24. The core shaft of the circular groove is coaxial with the center shaft of the hexagonal hole. Figure 7As shown, the embodiment is provided with a screw hole 54 at the end surface of the shaft column 53, and the driving assembly is connected with the ball wheel 2 in the following way: first, a screw (not shown in the figure) is locked at the screw hole 54 of the shaft column 53, and the diameter of the screw nut is slightly smaller than the diameter of the circular groove 25; then, the detachable part 241 of the connecting hole 24 is disassembled; then, the shaft column 53 is placed into the connecting hole 24 of the integral forming part of the fixing ring 231, and the screw nut is placed into the circular groove 25; then, the detachable part 241 of the connecting hole 24 is locked, so that the connecting hole 24 forms a closed hole; finally, the fixing sleeve 232 is sleeved on the fixing ring 231 and locked, and then the hemispherical inner shell 22 and the hemispherical outer shell 21 are installed in sequence, so that the installation is completed. At this time, since the diameter of the screw nut is larger than the maximum diameter of the hexagonal hole, the shaft column 53 will not be separated from the connecting hole 24, that is, the driving assembly and the ball wheel 2 will not be separated relatively, and at the same time, the shaft column 53 can drive the ball wheel 2 to rotate under the driving of the motor 4. The driving shell 3 of the embodiment is provided with a locking piece 35, and the driving shell 3 is locked on the vehicle body 1 through the locking piece 35, that is, the ball wheel 2 is connected with the vehicle body 1. Since the ball wheel 2 is directly connected with the driving assembly and driven to rotate through the driving assembly, the ball wheel 2 does not need an additional supporting rod or a circular ring for fixation, so the structure is relatively simple, and the overall simulation effect of the toy vehicle will not be affected, and the use of the ball wheel 2 instead of the traditional cylindrical wheel makes the toy vehicle more unique and beautiful in modeling, and more favored by children.

[0065] The optimal selection of the angle between the direction of the motor rotating shaft of the driving assembly and the length direction of the vehicle body is an acute angle of 45°. Of course, it can also be other angles, and theoretically, as long as it is not perpendicular or parallel to the length direction of the vehicle body, other angles can also achieve the technical effects of the present application, but if the angle is too large or too small, the effect will become poor, so the optimal angle is just the direction inclined by 45°. For example, Figure 8 As shown, the vehicle body 1 of the embodiment includes a vehicle bottom assembly 11 and a vehicle shell assembly 12, wherein the driving assembly is locked on the vehicle bottom assembly 11, and the four driving assemblies are installed in a 45° oblique direction outward in the horizontal plane, that is, the four driving assemblies intersect at a point on the center of the vehicle bottom assembly 11 along the extension line in the opposite direction of the extending direction of the motor rotating shaft 41. The embodiment is provided with a battery shell 13 in the middle of the vehicle bottom assembly 11, and a battery (not shown in the figure) is installed in the battery shell 13. The battery can be a rechargeable lithium battery, and the four driving assemblies are electrically connected with the battery. Since the battery is located at the central position of the vehicle body 1, the center of gravity of the entire toy vehicle is also located at the central position, so that the driving process of the toy vehicle is more stable.

[0066] In order to further improve the ornamental and interesting nature of the toy vehicle, the toy vehicle of the present application is also provided with a light effect. Specifically, a part of the shell of the vehicle shell assembly 12 is transparent or semi-transparent, such as Figure 9The T-section refers to the transparent or semi-transparent shell, and LED light assemblies 14 are provided at the corresponding positions of these transparent or semi-transparent shells. The LED light assemblies 14 are electrically connected to the battery, so that when the toy car is moving, light shines through the inside of the shell, which enhances the coolness of the toy car and can attract more children.

[0067] The toy car also includes a control chip 6, which is installed inside the car body 1. Figure 8 As shown, the control chip 6 is electrically connected to four drive components, thereby enabling the control chip 6 to control the rotation of the motor 4 shaft 41 of each of the four drive components in either the forward or reverse direction. This, in turn, drives the ball wheels 2 to rotate in different directions, resulting in different walking patterns for the toy car. Furthermore, for easier control, this embodiment also includes a remote control (not shown in the figure). This remote control is remotely connected to the control chip 6, allowing control of the toy car's different walking patterns, providing high operability and playability.

[0068] The following is a detailed description of the walking method of the toy car driven obliquely by the ball wheel 2 of the present invention.

[0069] Toy car forward:

[0070] like Figure 10 As shown, the control chip 6 controls the left front ball wheel 201 to rotate clockwise with an axis deflected 45° to the left along the direction of travel of the toy car, the right front ball wheel 202 to rotate counterclockwise with an axis deflected 45° to the right along the direction of travel of the toy car, the left rear ball wheel 203 to rotate counterclockwise with an axis deflected 135° to the left along the direction of travel of the toy car, and the right rear ball wheel 204 to rotate clockwise with an axis deflected 135° to the right along the direction of travel of the toy car. At this time, when these four ball wheels 2 rotate, they will generate a component force in the direction of travel. At the same time, the component force generated by the four ball wheels 2 perpendicular to the direction of travel will cancel each other out. Therefore, the toy car's forward movement mode is finally realized.

[0071] Toy car reverses:

[0072] like Figure 11 As shown, the control chip 6 controls the left front ball wheel 201 to rotate counterclockwise along the axis that deflects 45° to the left in the direction of travel of the toy car, the right front ball wheel 202 to rotate clockwise along the axis that deflects 45° to the right in the direction of travel of the toy car, the left rear ball wheel 203 to rotate clockwise along the axis that deflects 135° to the left in the direction of travel of the toy car, and the right rear ball wheel 204 to rotate counterclockwise along the axis that deflects 135° to the right in the direction of travel of the toy car. At this time, when these four ball wheels 2 rotate, they will generate a component force in the direction of backward movement. At the same time, the component force generated by the four ball wheels 2 perpendicular to the direction of travel will cancel each other out. Therefore, the backward movement mode of the toy car is finally realized.

[0073] Toy car rotates left in place:

[0074] like Figure 12 As shown, the control chip 6 controls the left front ball wheel 201 to rotate counterclockwise along an axis deflected 45° to the left in the direction of travel; the right front ball wheel 202 to rotate counterclockwise along an axis deflected 45° to the right in the direction of travel; the left rear ball wheel 203 to rotate clockwise along an axis deflected 135° to the left in the direction of travel; and the right rear ball wheel 204 to rotate clockwise along an axis deflected 135° to the right in the direction of travel. When these four balls 2 rotate, they cause the toy car to rotate counterclockwise around its center point. As long as the rotation of the balls 2 does not stop, the toy car will rotate counterclockwise. If the toy car rotates 90° to the left in place and then stops rotating the balls 2, the toy car achieves a left turn. Since the toy car turns 90° to the left from its center point, the entire turning process resembles drifting.

[0075] Toy car rotates clockwise in place:

[0076] like Figure 13 As shown, the control chip 6 controls the left front ball wheel 201 to rotate clockwise along an axis deflected 45° to the left in the direction of travel; the right front ball wheel 202 to rotate clockwise along an axis deflected 45° to the right in the direction of travel; the left rear ball wheel 203 to rotate counterclockwise along an axis deflected 135° to the left in the direction of travel; and the right rear ball wheel 204 to rotate counterclockwise along an axis deflected 135° to the right in the direction of travel. When these four balls 2 rotate, they cause the toy car to rotate clockwise around its center point. As long as the rotation of the balls 2 does not stop, the toy car will rotate clockwise in different directions. If the toy car rotates 90° to the right in place and then stops rotating the balls 2, the toy car achieves a right turn function. Since the toy car turns 90° to the right from its center point, the entire turning process resembles drifting.

[0077] The toy car moves forward at a 45-degree angle to the left front:

[0078] like Figure 14 As shown, the control chip 6 controls only the right front ball wheel 202 to rotate counterclockwise along the axis that deflects 45° to the right in the direction of the toy car's forward movement, and the left rear ball wheel 203 to rotate counterclockwise along the axis that deflects 135° to the left in the direction of the toy car's forward movement. The motors 4 of the left front ball wheel 201 and the right rear ball wheel 204 are not working. Therefore, at this time, both the right front ball wheel 202 and the left rear ball wheel 203 are moving in the left front direction. Thus, these two balls 2 drive the toy car to move in the left front 45-degree direction, which means that the toy car can move diagonally forward.

[0079] The toy car moves forward at a 45-degree angle to the right front:

[0080] As shown in Figure 15 the control chip 6 controls only the left front ball wheel 201 to rotate clockwise along the axis which is deflected 45° to the left of the forward direction of the toy car and the right rear ball wheel 204 to rotate clockwise along the axis which is deflected 135° to the right of the forward direction of the toy car, while the motors 4 of the right front ball wheel 202 and the left rear ball wheel 203 are not working, so at this time the left front ball wheel 201 and the right rear ball wheel 204 are moving to the right front direction, therefore these two ball wheels 2 drive the whole toy car to move in the direction which is deflected 45° to the right front, that is, the toy car can move forward obliquely.

[0081] Left rear 45° angle backward movement of the toy car:

[0082] As shown in Figure 16 the control chip 6 controls only the left front ball wheel 201 to rotate counterclockwise along the axis which is deflected 45° to the left of the forward direction of the toy car and the right rear ball wheel 204 to rotate counterclockwise along the axis which is deflected 135° to the right of the forward direction of the toy car, while the motors 4 of the right front ball wheel 202 and the left rear ball wheel 203 are not working, so at this time the left front ball wheel 201 and the right rear ball wheel 204 are moving to the left rear direction, therefore these two ball wheels 2 drive the whole toy car to move in the direction which is deflected 45° to the left rear, that is, the toy car can move backward obliquely.

[0083] Right rear 45° angle backward movement of the toy car:

[0084] As shown in Figure 17 the control chip 6 controls only the right front ball wheel 202 to rotate clockwise along the axis which is deflected 45° to the right of the forward direction of the toy car and the left rear ball wheel 203 to rotate clockwise along the axis which is deflected 135° to the left of the forward direction of the toy car, while the motors 4 of the left front ball wheel 201 and the right rear ball wheel 204 are not working, so at this time the right front ball wheel 202 and the left rear ball wheel 203 are moving to the right rear direction, therefore these two ball wheels 2 drive the whole toy car to move in the direction which is deflected 45° to the right rear, that is, the toy car can move backward obliquely.

[0085] Left movement of the toy car:

[0086] As shown in Figure 18 the control chip 6 controls the left front ball wheel 201 to rotate counterclockwise along the axis which is deflected 45° to the left of the forward direction of the toy car, the right front ball wheel 202 to rotate counterclockwise along the axis which is deflected 45° to the right of the forward direction of the toy car, the left rear ball wheel 203 to rotate counterclockwise along the axis which is deflected 135° to the left of the forward direction of the toy car, and the right rear ball wheel 204 to rotate counterclockwise along the axis which is deflected 135° to the right of the forward direction of the toy car, at this time the four ball wheels 2 rotate to produce the force to the left, and the front and rear direction forces produced by the four ball wheels 2 are offset, so the whole toy car finally moves to the left.

[0087] Toy car moves to the right:

[0088] like Figure 19 As shown, the control chip 6 controls the left front ball wheel 201 to rotate clockwise with an axis that deflects 45° to the left along the direction of travel of the toy car, the right front ball wheel 202 to rotate clockwise with an axis that deflects 45° to the right along the direction of travel of the toy car, the left rear ball wheel 203 to rotate clockwise with an axis that deflects 135° to the left along the direction of travel of the toy car, and the right rear ball wheel 204 to rotate clockwise with an axis that deflects 135° to the right along the direction of travel of the toy car. At this time, when these four ball wheels 2 rotate, they will generate a component force to the right. At the same time, the front and rear component forces generated by the four ball wheels 2 will cancel each other out. Therefore, the toy car will move to the right as a whole.

[0089] In summary, the ball wheel oblique drive toy car of the present invention has more than ten different walking modes, making the toy car's movements rich and highly playable. It can achieve both realistic walking modes and other unique walking modes, greatly enhancing children's play fun.

[0090] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0091] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A toy car with diagonal driving by ball wheels, comprising a car body and four ball wheels, the four ball wheels being respectively located at the front two sides and the rear two sides of the car body, characterized in that, each ball wheel is connected with a driving assembly for driving, the four driving assemblies are installed in the car body, the angle between the rotation axis of the motor of the driving assembly and the length direction of the car body is an acute angle, and each ball wheel rotates forward and backward around the rotation axis of the motor under the driving of the driving assembly; the ball wheel comprises two half-sphere housings and a fixing member, the two half-sphere housings are connected with the fixing member at both sides of the fixing member to form a spherical shape as a whole, the edge of the fixing member extends to have a connecting hole for connecting with the driving assembly, and the fixing member rotates around the hole axis of the connecting hole under the driving of the driving assembly; the ball wheel further comprises two half-sphere inner housings, the half-sphere inner housings are connected with the fixing member, the inner edge of the half-sphere housing is provided with a convex edge, and the convex edge of the half-sphere housing is buckled at the edge of the half-sphere inner housing to realize the connection with the half-sphere inner housing and the fixing member; the middle of the bottom of the concave cavity of the half-sphere inner housing extends to the ball center direction to have a connecting column, a through hole is formed in the middle of the fixing member, the connecting column of one half-sphere inner housing passes through the through hole, and the connecting columns of the two half-sphere inner housings are connected and fixed by bolts after being butted, and the two half-sphere inner housings can rotate around the connecting column relative to the fixing member.

2. The toy car with diagonal driving by ball wheels according to claim 1, characterized in that, anti-skid convex lines are arranged on the surface of the half-sphere housing.

3. The toy car with diagonal driving by ball wheels according to claim 1, characterized in that, the driving assembly comprises a driving housing, a motor and a gear set, the motor and the gear set are installed on the driving housing, the rotation axis of the motor is sleeved with an input gear, the input gear is engaged with the gear set, the output gear of the gear set coaxially extends to have a shaft column, the shaft column is connected with the ball wheel to drive the ball wheel to rotate, and the driving housing is locked on the car body.

4. The toy car with diagonal driving by ball wheels according to claim 1, characterized in that, a control chip is further arranged, the control chip is installed in the car body, the control chip is electrically connected with the four driving assemblies, the control chip controls the forward rotation or the reverse rotation of each driving assembly respectively, and the different walking modes of the toy car are controlled by driving the ball wheels to rotate in different directions through the four driving assemblies.

5. The toy car with diagonal driving by ball wheels according to claim 1, characterized in that, the car body comprises a car bottom assembly and a car shell assembly, the driving assemblies are locked on the car bottom assembly by screws, a battery housing is arranged in the middle of the car bottom assembly, a battery is installed in the battery housing, and the four driving assemblies are electrically connected with the battery.

6. The toy car with diagonal driving by ball wheels according to claim 5, characterized in that, a part of the car shell assembly is provided with a shell which is transparent or semi-transparent, an LED lamp assembly is arranged at the position corresponding to the shell, and the LED lamp assembly is electrically connected with the battery.

7. The toy car with diagonal driving by ball wheels according to claim 1, characterized in that, The angle between the rotation axis of the motor of the driving assembly and the length direction of the vehicle body is 45°.

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