CN111432904A - toy car - Google Patents

Abstract

A toy vehicle (100) comprising a drive motor (40), a first wheel set (10) and a second wheel set (20) spaced apart in a first direction, and a connecting shaft (30) rotatably connected to the body (101) of the toy vehicle in the first direction; the first wheel set (10) and the second wheel set (20) are both in rotating connection with the vehicle body (101); the first wheel set (10) comprises a first wheel (11) and a second wheel (12) which are arranged at intervals along a second direction, and a first wheel shaft (13) connected between the first wheel (11) and the second wheel (12); the second direction is perpendicular to the first direction, and the first wheel axle (13) is connected to the connecting shaft (30) such that the first wheel axle (13) rotates in the first direction relative to the vehicle body (101). The toy car (100) can ensure that at least three wheels on the uneven road surface are in contact with the ground through the rotation of the first wheel shaft (13), and at the moment, the driving motor (40) can drive at least one wheel to rotate, so that the toy car is ensured to keep moving and pass through the uneven road surface.

Description

toy car

technical field

The application relates to the field of toys, and in particular, to a toy car with strong road passing ability.

Background technique

In the process of traveling, the toy car will often encounter uneven road surface. Uneven road surfaces can easily lead to inconsistent degrees of contact between the wheels of the toy car and the ground. If the wheels of the toy car are hard-connected to the body, it may also cause some of the wheels to fail to touch the ground. At this time, if the toy car is not in the all-wheel drive mode, or it is described that the driving wheel of the toy car is suspended in the air and cannot touch the ground, the toy car will slip due to this, so that the toy car cannot travel normally.

In order to solve this problem, some toy cars often need to add a suspension structure to each wheel to cope with the wheel overhead scene that may be caused by uneven road surfaces, but the clip-mounted suspension structure will increase the manufacturing cost of the toy car. Moreover, the suspension structure is relatively complicated, and it is not fully applicable to some toy cars with low cost or simple structure.

SUMMARY OF THE INVENTION

The application proposes a toy car with strong road passing ability, which specifically includes the following technical solutions:

A toy car, comprising a drive motor, a first wheel set and a second wheel set spaced along a first direction, and a connecting shaft rotatably connected to the toy car body along the first direction, the drive motor uses In order to drive the first wheel set and/or the second wheel set to rotate, the first wheel set and the second wheel set are both rotatably connected to the vehicle body, and the first wheel set includes a first wheel and a second wheel spaced in a direction, and a first axle connected between the first wheel and the second wheel, the second direction is perpendicular to the first direction, the first An axle is connected with the connecting shaft so that the first axle rotates relative to the vehicle body in the first direction.

Wherein, the drive motor is fixed to the vehicle body, and the drive motor is used to drive the second wheel set to rotate.

Wherein, the second wheel set includes a third wheel and a fourth wheel spaced along the second direction, and a second wheel axle fixedly connected between the third wheel and the fourth wheel, the The drive motor is used to drive the second axle to rotate.

Wherein, the second wheel set includes a third wheel and a fourth wheel spaced along the second direction, the drive motor includes a first drive motor and a second drive motor, and the first drive motor is used for driving The third wheel rotates, and the second drive motor is used to drive the fourth wheel to rotate.

The drive motor is used to drive the first axle to rotate, the first axle is fixedly connected to the first wheel and the second wheel respectively, and the first axle is also rotatably connected to the connecting shaft , and the drive motor is fixed on the first axle.

Wherein, the toy car further includes a limiting portion, the limiting portion is fixedly connected to the body, and the limiting portion is used to control the movement of the first wheel set relative to the body along the first direction. Rotation angle.

Wherein, the limiting portion is two limiting holes symmetrically opened on the vehicle body along the first direction, the two limiting holes respectively extend along the vertical direction, and the first wheel shaft simultaneously penetrates through the two limiting holes. the limit holes.

Wherein, the two limiting holes are located between the first wheel and the second wheel along the second direction.

Wherein, the toy car further includes a rotary motor, the rotary motor is connected between the body and the connection shaft, and the rotary motor is used to drive the connection shaft relative to the body along the first direction turn.

Wherein, the rotating electrical machine is a forward-reverse dual-rotation rotating electrical machine.

Wherein, the toy car further includes a communication module, the communication module is electrically connected with the rotating electrical machine, and the communication module is used for receiving external commands and transmitting the external commands to the rotating electrical machine to control the rotating electrical machine. The rotary electric machine rotates relative to the vehicle body.

The toy vehicle of the present application is connected with the first axle through the connection shaft, so that the first axle can rotate relative to the vehicle body along the first direction. When the toy vehicle travels on an uneven road, the rotation of the first axle can ensure that at least three wheels are in contact with the ground at the same time. And because the drive motor can drive the first wheel set and/or the second wheel set to rotate, at least one of the three wheels in contact with the ground can be driven by the drive motor and rotate relative to the ground . As a result, the toy car of the present application has the ability to maintain a running state and pass through the uneven road surface even on an uneven road surface, thereby improving the passability of the toy car and enhancing the fun.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the following briefly introduces the drawings that are required to be used in the description of the embodiments of the present application.

1 is a schematic structural diagram of a toy car provided in an embodiment of the present application;

2 is a schematic structural diagram of a toy car provided in another embodiment of the present application;

3 is a schematic structural diagram of a toy car provided in another embodiment of the present application;

FIG. 4 is a schematic partial structure diagram of a toy car provided in another embodiment of the present application;

Fig. 5 is the partial structural schematic diagram of the toy car provided in another embodiment of the present application;

FIG. 6 is a schematic diagram of a scene of a toy car traveling on an uneven road surface in another embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

Please refer to the toy vehicle 100 of the present application shown in FIG. 1 , which includes a body 101 , a driving motor 40 , a first wheel set 10 , a second wheel set 20 and a connecting shaft 30 . The first wheel set 10 and the second wheel set 20 are arranged on the body 101 at intervals along the first direction 001 , that is, the first wheel set 10 and the second wheel set 20 are arranged on the body 101 at intervals along the traveling direction of the toy vehicle 100 . It can be understood that the first wheel set 10 and the second wheel set 20 are both rotatably connected to the body 101 , that is, both the first wheel set 10 and the second wheel set 20 can rotate relative to the body 101 . The drive motor 40 is used to drive the first wheel set 10 and/or the second wheel set 10 to rotate, so that the toy vehicle 100 travels on the road surface. The traveling direction of the vehicle body 101 is the first direction 001 . The connecting shaft 30 is disposed on the vehicle body 101 along the first direction 001, and the connecting shaft 30 can rotate clockwise or counterclockwise around its axial direction.

The first wheel set 10 includes a first wheel 11 and a second wheel 12 spaced along the second direction 002, the first wheel set 10 further includes a first wheel axle 13 connected between the first wheel 11 and the second wheel 12, The first axle 13 passes through the vehicle body 101 along the second direction 002 and is exposed from opposite sides of the vehicle body 101 . The second direction 002 is perpendicular to the first direction 001 . The first wheel shaft 13 is connected with the connecting shaft 30 , or described as the first wheel set 10 is connected to the vehicle body 101 through the first connecting shaft 13 and the connecting shaft 30 . Thus, when the connecting shaft 30 rotates around the vehicle body 101 in the first direction 001 , the first axle 13 also rotates relative to the vehicle body 101 along the first direction 001 . Correspondingly, the first wheel 11 and the second wheel 12 also rotate relative to the vehicle body 101 along the first direction 001 along with the first axle 13 .

When the first wheel set 10 or the second wheel set 20 is connected with the driving motor 40 , the toy vehicle 100 forms a driving mode of two driving wheels and two driven wheels, that is, a two-wheel drive driving mode. When both the first wheel set 10 and the second wheel set 20 are connected with the driving motor 40 , the toy vehicle 100 forms a driving mode of four driving wheels. Because the toy car 100 travels in the first direction 001 , when the toy car 100 travels on an uneven road, the vehicle body 101 may be deflected in the first direction 001 and/or the second direction 002 . When the vehicle body 101 is deflected in the second direction 002, the toy car 100 is in a state similar to a rollover. At this time, the first wheel set 10 and the second wheel set 20 both form one wheel to contact the ground, and the other wheel is raised. The contact area with the ground is small or even lifted off the ground directly. When the vehicle body 101 is deflected along the first direction 001, the toy vehicle 100 is in a state similar to being flipped forward or backward. At this time, one group of wheels in the first wheel group 10 and the second wheel group 20 will be in contact with the ground, and the other group of wheels will be lifted, and the contact area with the ground is small or even directly lifted off the ground.

When the toy car 100 is in a similar rollover state, because each of the first wheel set 10 and the second wheel set 20 will provide at least one wheel for reliable contact with the ground, the driving motor 40 continues to drive the first wheel set 10 and the ground. In the case of/or the second wheel set 20, the toy vehicle 100 can maintain the traveling state by at least one wheel (such as the first wheel 11 and/or the third wheel 21) that is in contact with the ground and driven by the driving motor 40, and finally drives away from uneven roads. However, when the toy car 100 is in a state similar to flipping forward or flipping backwards, one of the wheels of the first wheel set 10 and the second wheel set 20 may be raised. When the other set of wheels is the driven wheel, the toy car 100 will lose the driving force for traveling, and thus cannot maintain the traveling state, and is placed on the uneven road surface.

In another case, even if the two driving wheels of the toy car 100 are in contact with the ground and generate a driving force, it may be because the grip of the toy car 100 and the ground is not enough, or it is described that the toy car 100 does not have a sufficient number of The wheels come into contact with the ground, causing the toy vehicle 100 to be unable to maintain a running state. Corresponding to the toy car 100 of the present application, when the body 101 is in a forward-turned or backward-turned posture, after the first wheel set 10 is raised, if the driving motor 40 drives the first wheel set 10 but does not drive the second wheel set 20, then The toy car 100 loses driving force. At this time, the first wheel set 10 can rotate relative to the vehicle body 101 around the first direction 001 under the action of the connecting shaft 30 . By rotating the first wheel set 10 and lowering the first wheel 11 or the second wheel 12 to contact the ground, at least one wheel of the first wheel set 10 driven by the driving motor 40 can rotate relative to the ground. The second wheel set 20 also provides sufficient gripping force because it is in contact with the ground. The toy car 100 can form a more stable contact attitude with the ground through the first wheel 11 or the second wheel 12 that is in relative contact with the ground after rotation. Further, the traveling state is maintained, and the traveling can be continued on the uneven road surface.

It should be mentioned that, in the above scenario, the second wheel set 20 may be driven by the driving motor 40 or may not be driven by the driving motor 40 . As mentioned above, even if the toy vehicle 100 has at least two driving wheels in contact with the ground, there may be a situation in which the grip force is insufficient to maintain the running state. However, the toy car 100 of the present application is rotated by the connecting shaft 30, so that the first wheel set 10 also provides a wheel to rotate relative to the ground, which can improve the grip and driving force of the toy car 100, thereby maintaining the traveling state and avoiding unevenness. Keep going on the road.

In the embodiment of FIG. 1 , the first wheel set 10 may be the front wheel of the toy vehicle 100 , and the second wheel set 20 may be the rear wheel of the toy vehicle 100 . In other embodiments, the first wheel set 10 may also be the rear wheel of the toy car 100, and the second wheel set 20 may be the rear wheel of the toy car 100, which does not affect the implementation of the solution of the present application.

In the embodiment of FIG. 1 , the driving motor 40 is also fixed in the vehicle body 101 for driving the second wheel set 20 to rotate. It can be understood that when the toy car 100 flips backwards, the second wheel set 20 remains in contact with the ground, and the first wheel set 10 can provide the first wheel 11 or the second wheel 12 to contact the ground through the rotation of the connecting shaft 30 contact, thereby increasing the contact area between the toy car 100 and the ground, improving the grip of the toy car 100, and helping the second wheel set 20 to drive the toy car 100 to maintain a running state. When the toy car 100 flips forward, the first wheel set 10 keeps in contact with the ground. At this time, the posture of the toy car 100 can be changed by the rotation of the connecting shaft 30, so that the second wheel set 20 provides one wheel with the ground. contact, and provide driving force so that the toy vehicle 100 continues to travel.

2, the second wheel set 20 includes a third wheel 21 and a fourth wheel 22 spaced along the second direction 002, and the second wheel set 20 also includes a fixed connection to the third wheel 21 and the fourth wheel 22. A second axle 23 between the wheels 22 . The driving motor 40 is used to drive the second wheel shaft 23 to rotate, so as to simultaneously drive the rotation of the third wheel 21 and the fourth wheel 22 in the second wheel set 20 . In the embodiment of FIG. 2 , the first axle 13 also includes a curved section 131 for making way for components within the toy vehicle 100 . At this time, both the first wheel 11 and the second wheel 12 are rotatably connected with the first axle 13 , so the toy vehicle 100 including the curved section 131 can still travel forward by means of the first wheel set 10 .

Referring back to FIG. 1 for another embodiment, the second wheel set 20 includes a third wheel 21 and a fourth wheel 22 spaced along the second direction 002, and the drive motor 40 further includes a first drive motor 41 and a second drive motor 42. The first driving motor 41 is used for driving the rotation of the third wheel 21 , and the second driving motor 42 is used for driving the rotation of the fourth wheel 22 . At this time, when the toy car 100 flips forward, and only one wheel of the second wheel set 20 can contact the ground through the rotation of the connecting shaft 30, the third wheel 21 can be driven by the first driving motor 41 alone, or the second wheel 21 can be driven independently. The driving motor 42 alone drives the fourth wheel 22 to complete the function of providing driving force for the toy vehicle 100 . 1 and 2 are embodiments in which the driving motor 40 drives the second wheel set 20. Of course, the first wheel set 10 may also have a driving force at this time. For the driving method of the first wheel set 10, please refer to the following described embodiment.

Referring to FIG. 3 , the driving motor 40 is used for driving the first wheel shaft 13 to rotate, that is, the driving motor 40 is used for driving the first wheel set 10 to rotate. At this time, the first axle 13 is fixedly connected to the first wheel 11 and the second wheel 12 respectively to ensure that the driving energy of the driving motor 40 to the first wheel set 13 is transmitted to the first wheel 11 and the second wheel 12 . The first wheel set 10 needs to be rotatably connected relative to the body 101 , so the first wheel shaft 13 is also rotatably connected to the connecting shaft 30 to ensure that the first wheel set 10 can rotate relative to the body 101 and provide driving force. In the embodiment of FIG. 3 , because the first wheel set 10 can rotate relative to the vehicle body 101 around the first direction 001 , the drive motor 40 should not be fixedly connected to the vehicle body 101 , but the drive motor 40 should be fixed to the first axle 13 superior. As a result, when the first wheel set 10 rotates relative to the vehicle body 101 , the driving motor 40 keeps the position of the first wheel set 10 unchanged, thereby providing driving force to the first wheel 11 and the second wheel 12 stably.

In one embodiment, the toy vehicle 100 further includes a limiting portion (not shown in the figure). The limiting portion is fixedly connected to the vehicle body 101 , and the limiting portion is used to control the rotation angle of the first wheel set 10 relative to the vehicle body 101 around the first direction 001 . The setting of the limiting portion can prevent the first wheel set 10 from rotating too much relative to the body 101, causing the side surface of the first wheel 10 or the second wheel 20 to come into surface contact with the ground, and on the contrary, it forms a frictional obstacle to the traveling of the toy car 100. Defects. Referring to FIG. 4 , the limiting portion can be configured as two limiting holes 51 symmetrically opened on both side walls of the vehicle body 101 , and the two limiting holes 51 are respectively along a plane perpendicular to the first direction 001 and the plane where the second direction 002 is located. extends a certain length in the direction. Because the first direction 001 is a horizontal direction, the rotation of the first wheel set 10 relative to the vehicle body 101 includes a vertical direction. When the first axle 13 passes through the two limit holes 51 at the same time, the two limit holes 51 extending in the vertical direction can limit the first axle 13 in the vertical direction, so as to control the relative position of the first wheel set 10 at the rotation angle of the vehicle body 101 .

Please continue to refer to FIG. 4, because the first wheel 11 and the second wheel 12 are generally exposed on the side of the toy vehicle 100, or described as the body 101 is generally located between the first wheel 11 and the second wheel 12 in the second direction 002, Therefore, the two limiting holes 51 are also located between the first wheel 11 and the second wheel 12 along the second direction 002 . To limit the rotation of the first axle 13 by the limiting hole 51 , the limiting hole 51 needs to pass through the center of the first wheel 11 and the second wheel 12 . Therefore, the two limiting holes 51 are arranged between the first wheel 11 and the second wheel 12 , so that the first wheel 11 and the second wheel 12 can shield the two limiting holes 51 respectively, thereby avoiding the damage of the vehicle body 101 . Exposing the opening can improve the appearance consistency of the toy vehicle 100 .

In the above embodiment, the rotation of the first wheel set 10 relative to the body 101 through the connecting shaft 30 is mostly in the passive rotation mode of the connecting shaft 30 of the toy vehicle 100 under the action of its own gravity. When the self-weight of the toy vehicle 100 is light, or the rotation of the connecting shaft 30 is stuck, the toy vehicle 100 may not be able to ensure that the connecting shaft 30 rotates in place due to the action of gravity. Therefore, in one embodiment, referring to FIG. 5 , the toy vehicle 100 further includes a rotating electric machine 60 . The rotating electrical machine 60 is connected between the vehicle body 101 and the connecting shaft 30 , and the rotating electrical machine 60 is used to drive the connecting shaft 30 to rotate relative to the vehicle body along the first direction 001 . That is, after the rotating motor 60 is introduced, the toy vehicle 100 can control the rotation of the first wheel set 10 relative to the vehicle body 101 through the rotating motor 60 . In the case that the toy car 100 is not heavy enough to provide enough downforce to increase the friction between the first wheel set 10 and the ground, or the rotation of the connecting shaft 30 is stuck, the toy car 100 can pass the rotating motor 60 The active rotation control of the first wheel set 10 is used to assist the rotation of the first wheel set 10 relative to the vehicle body 101 .

Further, the rotary motor 60 can also be implemented by a motor that rotates in forward and reverse directions. That is, the rotation control of the first wheel set 10 by the toy car 100 can actively select the wheel that contacts the ground as the first wheel 11 or the second wheel 12 through the active forward and reverse rotation of the rotary motor 60 . When one side of the toy car 100 is raised, the distance between the lower wheel and the ground relative to the vehicle body 101 may be greater than the distance between the higher wheel and the ground relative to the vehicle body 101 due to the unevenness of the ground (see Fig. 6). In the schematic diagram of FIG. 6 , although the first wheel 11 of the toy car 100 is lower than the second wheel 12 , the ground below the first wheel 11 is also lower, so that the distance between the second wheel 12 and the ground is even greater. close. At this time, the toy vehicle 100 can only increase the rotation angle of the connecting shaft 30 under the action of its own gravity, so that the first wheel 11 contacts the ground at a larger rotation angle position and drives the toy vehicle 100 to travel. Then, if the first wheel 11 is still unable to contact the ground even when the first wheel 11 is rotated to the maximum angle, the toy vehicle 100 will lose power and stop on the uneven road surface and cannot continue to travel. The introduction of the rotary motor 60 enables the toy car 100 to reversely rotate the connecting shaft 30 through the active control of the rotary motor 60, and through the contact between the second wheel 12 and the ground, the toy car 100 realizes that all three wheels are in contact with the ground. ground contact attitude.

On the contrary, because the rotating motor 60 is a motor with both forward and reverse rotation directions, when the opposite situation to FIG. 6 is encountered, when the toy car 100 needs to actively control the first wheel 11 to contact the ground, the rotating The wheels 11 are turned into contact with the ground to provide the toy vehicle 100 in an on-going attitude. Further, when the toy vehicle 100 is stuck on an uneven ground, the rotating motor 60 can also be rapidly rotated back and forth by controlling the connecting shaft 30 to provide high-frequency vibration of the toy vehicle 100 relative to the ground. Such a movement mode also helps the toy vehicle 100 to be released from the uneven road surface and return to a normal running state.

In one embodiment, the toy vehicle 100 may further include a communication module (not shown). The communication module is used for the communication between the toy vehicle 100 and the outside world, and can receive outside commands. That is, the toy car 100 has a remote control function. The communication module is at least electrically connected to the rotating electrical machine 60 , and the communication module can transmit external commands to the rotating electrical machine 60 , or the communication module can transmit external commands to the control system of the toy car 100 , and the control system is connected to the rotating electrical machine 60 . The above arrangement enables the toy car 100 to have the function of controlling the rotating electrical machine 60 through the communication module at the same time as having the remote control function. The user can actively control the rotation direction or speed of the rotary motor 60 by observing the toy car 100 and the surrounding environment, and then control the rotation of the first wheel set 10 relative to the body 101 to achieve the effect of remotely controlling the body posture of the toy car 100. . It can be understood that, through the setting of the communication module, the user can actively control the toy car 100 to rotate the first wheel set 10 on the uneven road, and improve the passing ability of the toy car 100 on the uneven road.

The above-mentioned embodiments do not constitute a limitation on the protection scope of the technical solution. Any modifications, equivalent replacements and improvements made within the spirit and principles of the above-mentioned embodiments shall be included within the protection scope of this technical solution.

Claims (10)

1. A toy car, characterized in that it comprises a drive motor, a first wheel set and a second wheel set spaced along a first direction, and a connecting shaft rotatably connected to the toy car body along the first direction , the drive motor is used to drive the first wheel set and/or the second wheel set to rotate, the first wheel set and the second wheel set are both connected to the body for rotation, and the first The wheel set includes a first wheel and a second wheel spaced apart along a second direction, the second direction being perpendicular to the first wheel, and a first axle connected between the first wheel and the second wheel direction, the first axle is connected with the connecting shaft, so that the first axle rotates relative to the vehicle body along the first direction. 2 . The toy vehicle according to claim 1 , wherein the drive motor is fixed to the vehicle body, and the drive motor is used to drive the second wheel set to rotate. 3 . 3. The toy vehicle according to claim 2, wherein the second wheel set comprises a third wheel and a fourth wheel spaced along the second direction, and is fixedly connected to the third wheel and the fourth wheel The second axle between the fourth wheels, and the driving motor is used to drive the second axle to rotate. 4. The toy vehicle of claim 2, wherein the second wheel set comprises a third wheel and a fourth wheel spaced along the second direction, and the drive motor comprises a first drive motor and a A second driving motor, the first driving motor is used for driving the third wheel to rotate, and the second driving motor is used for driving the fourth wheel to rotate. 5 . The toy vehicle according to claim 1 , wherein the driving motor is used to drive the first axle to rotate, and the first axle is respectively fixedly connected to the first wheel and the second wheel. 6 . , the first axle is also rotatably connected with the connecting shaft, and the drive motor is fixed on the first axle. 6 . The toy car according to claim 1 , wherein the toy car further comprises a limit portion, the limit portion is fixedly connected to the vehicle body, and the limit portion is used for the toy car. 7 . The rotation angle of the first wheel set relative to the vehicle body in the first direction is controlled. 7 . The toy vehicle according to claim 6 , wherein the limiting portion is two limiting holes symmetrically opened on the vehicle body along the first direction, and the two limiting holes are respectively 7 . Extending along the vertical direction, the first wheel shaft simultaneously penetrates through the two limiting holes. 8 . The toy vehicle according to claim 7 , wherein the two limiting holes are located between the first wheel and the second wheel along the second direction. 9 . 9 . The toy car according to claim 1 , wherein the toy car further comprises a rotary motor, the rotary motor is connected between the vehicle body and the connection shaft, and the rotary motor The motor is used for driving the connecting shaft to rotate relative to the vehicle body along the first direction. 10 . The toy car according to claim 9 , wherein the toy car further comprises a communication module, the communication module is electrically connected with the rotating electrical machine, and the communication module is used for receiving external commands and sending the communication to the toy car. 11 . The external command is transmitted to the rotary electric machine to control the rotation of the rotary electric machine relative to the vehicle body.

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