Toy gyro car
By introducing inertial blocks and power transmission devices into toy cars, toy gyroscope cars achieve self-rotation and spark effects, solving the problem of limited functionality in toy cars, enhancing fun and interactivity, and reducing production costs.
Patent Information
- Application Number
- CN202520155271.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing toy cars have limited functionality and lack diversity and interactivity.
A toy gyroscope car was designed, comprising a shell, a moving device, a rotating device, and a power transmission device. It utilizes the rotation of an inertial block to generate centrifugal force, causing the shell to rotate via the gyroscope axis. A spark device is added to enhance its entertainment value.
It enriches the functionality of toy cars, increases their fun and interactivity, while reducing production costs, and features a compact and stable structure.
Smart Images

Figure CN223831771U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of toys, and more particularly to toy spinning tops. Background Technology
[0002] Toy cars generally refer to toys that simulate the appearance of real vehicles and are capable of movement. Existing toy cars typically differ in their control or driving methods. Control methods vary between remote control and manual operation, while driving methods typically include motor drive, spring-loaded drive, inertia drive, or other methods without a power source. Regardless of the specific differences, toy cars generally only possess basic movement capabilities supplemented by sound and light effects, making their functionality relatively limited. Utility Model Content
[0003] This invention provides a toy spinning top car that solves the problem of limited functionality in toy cars.
[0004] This utility model provides a toy spinning top car, which includes:
[0005] The housing has a first mounting position and a second mounting position, and a gyroscope axis is provided on the second mounting position;
[0006] The mobile device includes a plurality of movable wheels, each of which is rotatably mounted on the first mounting position;
[0007] A rotating device includes a rotating shaft and an inertial block, wherein one end of the rotating shaft is connected to the gyroscope axis, and the inertial block is sleeved on the rotating shaft; and
[0008] A power transmission device is disposed inside the housing and is respectively driven and connected to the moving wheel and the inertial block;
[0009] When the moving wheel drives the inertial block to rotate through the power transmission device, the rotational inertia of the inertial block is increased; when the inertial block rotates inertia and drives the moving wheel to rotate through the power transmission device, the inertial block generates centrifugal force, which enables the shell to rotate through the gyroscope axis.
[0010] Preferably, the power transmission device includes a drive gear and a transmission gear, at least one of the moving wheels is drivenly connected to the drive gear, the drive gear meshes with the transmission gear, the transmission gear is sleeved on the rotating shaft, the transmission gear is connected to the inertial block, and the transmission gear and the inertial block have the same rotational angular velocity on the rotating shaft.
[0011] Preferably, the moving device includes a plurality of moving shafts and a plurality of moving wheels, each of the moving shafts being rotatably mounted on the housing, and each of the moving shafts having a moving wheel at each end; the driving gear is sleeved on one of the moving shafts.
[0012] Preferably, the power transmission device further includes a driven gear, which is rotatably disposed within the housing and meshes with the drive gear and the transmission gear respectively.
[0013] Preferably, the inertial block is disc-shaped, and a through hole is formed in the center of the inertial block, through which the rotating shaft passes.
[0014] Preferably, the toy spinning top further includes a spark device, which includes at least one spark stone;
[0015] Each of the aforementioned spark stones is disposed on the inner wall surface of the shell, and the inertial block is provided with a friction surface, with each of the aforementioned spark stones movably abutting against the friction surface; or
[0016] Each of the aforementioned spark stones is disposed on the inertial block, and a friction surface is provided on the inner wall surface of the shell, with each of the aforementioned spark stones movably abutting against the friction surface.
[0017] Preferably, the friction surface includes a frosted layer disposed on the inertial block, and a plurality of connecting posts are disposed on the inner wall surface of the housing, each of the connecting posts being evenly distributed around the gyroscope axis, and each of the spark stones being disposed on each of the connecting posts in a corresponding manner.
[0018] Preferably, the housing has a plurality of spark ports, each of which allows sparks generated by the friction between the friction surface and the spark stone to pass through to the outside of the housing.
[0019] Preferably, the housing includes an inner shell, a bottom shell, and an outer shell, the inner shell is fitted over the bottom shell, the bottom shell and the inner shell together define an installation space, and the outer shell is fitted over the inner shell;
[0020] The first mounting position is disposed on the bottom shell, and each of the moving wheels is rotatably disposed on the bottom shell. A clearance hole is provided on the outer shell, and the clearance hole surrounds the second mounting position. The gyroscope axis is disposed on the inner shell and passes through the clearance hole.
[0021] Preferably, the bottom shell has a center alignment hole, the inner shell has a connecting part on its inner side, the rotating device further includes a bushing, the bushing is inserted into the connecting part, one end of the rotating shaft is inserted into the bushing, and the other end of the rotating shaft is inserted into the alignment hole;
[0022] Alternatively, the gyroscope shaft may be provided with a foolproof part, and the wall of the avoidance hole may be provided with a foolproof notch, with the foolproof part inserted into the foolproof notch.
[0023] The following are the beneficial effects of implementing this utility model:
[0024] This utility model relates to a toy spinning top car. By incorporating a rotation device and a power transmission device, this utility model not only retains the basic mobility functions of traditional toy cars but also adds the function of enabling the shell to rotate via the gyroscope axis based on the centrifugal force generated by the rotation of the inertial block. This greatly enriches the functionality of the toy car and increases its fun and interactivity.
[0025] Secondly, all components are integrated into the housing, ensuring the compactness and stability of the overall product structure. Furthermore, the use of inertial blocks eliminates the need for motors and corresponding power supply components, significantly reducing manufacturing costs. Attached Figure Description
[0026] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally denote like parts.
[0027] Figure 1 This is a structural schematic diagram of a toy gyroscope vehicle in some embodiments of this utility model;
[0028] Figure 2 From another perspective Figure 1 The diagram shows the structure of a toy spinning top car.
[0029] Figure 3 This is a schematic diagram of the internal structure of a toy spinning top car in some embodiments of this utility model;
[0030] Figure 4 This is an exploded view of a toy spinning top car in some embodiments of this utility model;
[0031] Figure 5 From another perspective Figure 4 An exploded view of the toy spinning top car shown;
[0032] Figure 6 This is a partial structural schematic diagram of the toy spinning top vehicle in some embodiments of this utility model;
[0033] Figure 7 yes Figure 5 Enlarged view at point A. Detailed Implementation
[0034] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be more thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.
[0035] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0036] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0037] Unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] Figures 1 to 3 The toy spinning top 10 of some embodiments of the present invention is shown. The toy spinning top 10 includes a housing 1, a moving device 2, a rotating device 3 and a power transmission device 4, which are respectively disposed inside the housing 1.
[0039] It should be noted that the housing 1 provides installation space for the other components. The moving device 2 is rotatably mounted on the housing 1, providing support for movement and allowing the entire product to move. The rotating device 3 is rotatably mounted inside the housing 1, providing force to the housing 1 during rotation, enabling the entire product to rotate. The power transmission device 4 is driven by both the moving device 2 and the rotating device 3; thus, the power transmission device 4 can transmit the torque input via the moving device 2 to the rotating device 3, thereby increasing the rotational inertia of the rotating device 3; additionally, the power transmission device 4 can also transmit the torque output by the rotating device 3 during its inertial rotation back to the moving device 2.
[0040] like Figures 1 to 7 As shown, the housing 1 has a first mounting position 121 and a second mounting position 132, and a gyroscope axis 111 is provided on the second mounting position 132.
[0041] The mobile device 2 includes a plurality of movable wheels 21, each of which is rotatably mounted on the first mounting position 121.
[0042] The rotating device 3 includes a rotating shaft 31 and an inertial block 32. The end of the rotating shaft 31 is connected to the gyroscope shaft 111, and the inertial block 32 is sleeved on the rotating shaft 31.
[0043] The power transmission device 4 is installed inside the housing 1, and the power transmission device 4 drives the moving wheel 21 and the inertial block 32 respectively.
[0044] When the moving wheel 21 drives the inertial block 32 to rotate through the power transmission device 4, the rotational inertia of the inertial block 32 is increased; when the inertial block 32 rotates inertia and drives the moving wheel 21 to rotate through the power transmission device 4, the inertial block 32 generates centrifugal force, which enables the shell 1 to rotate through the gyroscope axis 111.
[0045] Understandably, the housing 1 not only protects the internal mechanical structure from external damage, but also provides a stable support platform for the moving device 2, the rotating device 3, and the power transmission device 4. The first mounting position 121 is used to fix the moving wheel 21 in the moving device 2, and the second mounting position 132 is used to set the gyroscope axis 111. The gyroscope axis 111 can provide the rotation center point for the entire product. When the inertial block 32 rotates on the rotating shaft 31, the inertial block 32 will drive the entire housing 1 to rotate around the gyroscope axis 111 through centrifugal force.
[0046] Each of the movable wheels 21 is configured to rotate freely on the first mounting position 121. Each movable wheel 21 can support the entire toy gyroscope 10 and allow the toy gyroscope 10 to move along the ground. In addition, the movable wheels 21 are connected to the power transmission device 4 to receive driving force from the outside and drive the inertial block 32 to rotate, or to receive driving force transmitted from the inertial block 32, thereby driving the vehicle to move.
[0047] One end of the rotating shaft 31 is securely connected to the gyroscope shaft 111 located on the second mounting position 132, ensuring that the inertial block 32 can rotate rapidly around a fixed axis. When the inertial block 32 begins to rotate at high speed, it acquires a large moment of inertia, which helps to maintain its rotational state and continue rotating for a period of time without a continuous external force.
[0048] It should be noted that the power transmission device 4 is located inside the housing 1 and is responsible for transmitting energy from the moving wheel 21 to the inertial block 32 and vice versa. On the one hand, when the user pushes or pulls the toy gyroscope 10, the kinetic energy received by the moving wheel 21 is converted and transmitted to the inertial block 32 through the power transmission device 4, increasing its rotational speed and inertia. On the other hand, as the inertial block 32 continues to rotate due to its own inertia, the energy it stores can be transmitted back to the moving wheel 21 through the same path, so that the vehicle can maintain a certain state of motion even without additional power input. More importantly, as the inertial block 32 rotates, it generates a significant centrifugal force, which is sufficient to overcome friction and other resistance factors, causing the housing 1, along with all components, to rotate stably and smoothly around the gyroscope axis 111.
[0049] like Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, in some embodiments of the toy spinning top 10, the power transmission device 4 includes a drive gear 41 and a transmission gear 42. At least one moving wheel 21 is drivenly connected to the drive gear 41. The drive gear 41 meshes with the transmission gear 42. The transmission gear 42 is sleeved on the rotating shaft 31 and connected to the inertial block 32. The rotational angular velocities of the transmission gear 42 and the inertial block 32 on the rotating shaft 31 are the same.
[0050] Understandably, at least one movable wheel 21 is directly connected to the drive gear 41 or driven through other mechanical connections. Thus, when the movable wheel 21 rotates under the influence of external pushing or pulling forces or ground friction, it can directly transfer the acquired kinetic energy to the drive gear 41 through gear meshing. As a key node in the power transmission chain, the drive gear 41 ensures the efficient transfer of energy from the moving parts to the rotating parts.
[0051] The transmission gear 42 is not only mounted on the rotating shaft 31, but also has a solid mechanical connection with the inertia block 32, ensuring that the rotational angular velocities of the two are consistent. This design allows the inertia block 32 to rotate at the same angular velocity as the transmission gear 42, thereby effectively utilizing the energy from the moving wheel 21 to increase its own moment of inertia.
[0052] It should be noted that the meshing between the drive gear 41 and the transmission gear 42 achieves a smooth transition from linear motion (i.e., the rolling of the moving wheel 21) to rotational motion (i.e., the rotation of the inertial block 32). This gear transmission method provides a highly efficient energy conversion path, reduces energy loss, and improves the overall performance of the system.
[0053] like Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, in some embodiments of the toy gyroscope 10, the moving device 2 includes several moving shafts 22 and several moving wheels 21. Each moving shaft 22 is rotatably mounted on the housing 1, and each moving shaft 22 has a moving wheel 21 at both ends. The drive gear 41 is mounted on one of the moving shafts 22.
[0054] Understandably, each movable shaft 22 is rotatably mounted on the housing 1, and each movable shaft 22 has a movable wheel 21 installed at each end. This arrangement ensures that all movable wheels 21 can rotate freely around their respective movable shafts 22, thereby improving the vehicle's adaptability and stability on different terrains. Furthermore, by fixing two movable wheels 21 to the same shaft, synchronous rotation of the wheels on both sides can be guaranteed, reducing potential directional deviations during vehicle movement. A drive gear 41 is fitted onto one of the movable shafts 22, allowing the drive gear 41 to rotate directly when the movable shaft 22 and its corresponding movable wheel 21 are rotated by an external force. This further simplifies the energy transfer chain from the moving parts to the rotating parts, making energy transmission more direct and efficient.
[0055] like Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, in some embodiments of the toy spinning top 10, the power transmission device 4 further includes a driven gear 43, which is rotatably disposed in the housing 1 and meshes with the drive gear 41 and the transmission gear 42 respectively.
[0056] Understandably, the driven gear 43 is rotatably mounted inside the housing 1 and meshes with both the drive gear 41 and the transmission gear 42. This gear set consisting of three gears (drive gear 41, driven gear 43, and transmission gear 42) forms a highly efficient power transmission chain. As an intermediate link, the driven gear 43 can smoothly transmit the power from the drive gear 41 to the transmission gear 42. Of course, the inertial block 32 can also drive the moving wheel 21 to rotate more smoothly.
[0057] like Figure 3 As shown, in some embodiments of the toy gyroscope 10, the inertial block 32 is disc-shaped, and a through hole 321 is provided in the center of the inertial block 32, through which the rotating shaft 31 passes.
[0058] Understandably, the inertia block 32 adopts a disc shape. The disc shape maximizes the use of limited space to increase the radius of mass distribution, thereby effectively improving the moment of inertia. Under the same material and volume conditions, compared to other shapes (such as cubes or spheres), the disc-shaped inertia block 32 can provide greater stability during rotation, helping to enhance the centrifugal force effect during rotation. The through-hole 321 ensures that the inertia block 32 can be tightly and stably fitted onto the rotation shaft 31, while allowing the inertia block 32 to rotate freely around the rotation shaft 31.
[0059] like Figure 3 As shown, in some embodiments of the toy spinning top 10, the toy spinning top 10 also includes a spark device 5, which includes at least one spark stone.
[0060] Each spark stone is disposed on the inner wall surface of the shell 1, and the inertial block 32 is provided with a friction surface 51, with each spark stone movably abutting against the friction surface 51; or
[0061] Each spark stone is set on the inertial block 32, and a friction surface 51 is provided on the inner wall surface of the shell 1. Each spark stone is movably supported on the friction surface 51.
[0062] It should be noted that the spark stone and the friction surface 51 can be configured in at least the following ways:
[0063] In the first configuration, the spark stone is placed on the inner wall of the housing 1, while the inertial block 32 has a friction surface 51. In this case, when the inertial block 32 rotates at high speed, its friction surface 51 will come into contact with the spark stone fixed on the inner wall of the housing 1 and generate friction, thereby triggering a spark phenomenon.
[0064] The second configuration involves mounting the spark stone on the inertial block 32, while a friction surface 51 is provided on the inner wall of the housing 1. As the inertial block 32 rotates, the spark stone will continuously move relative to the friction surface 51 on the inner wall of the housing 1, thus producing a spark effect as well.
[0065] Understandably, during operation (when the inertial block 32 rotates), the user can observe sparks generated by the friction between the sparkstone and the friction surface 51 in the toy gyroscope 10 of this embodiment. This further enriches the functionality of the product.
[0066] like Figure 3 As shown, in some embodiments of the toy gyroscope 10, the friction surface 51 includes a frosted layer disposed on the inertial block 32, and a plurality of connecting posts 15 are disposed on the inner wall surface of the housing 1. Each connecting post 15 is evenly distributed around the gyroscope axis 111, and each spark stone is disposed on each connecting post 15 in a corresponding manner.
[0067] Understandably, since the connecting column 15 and the spark stones thereon are evenly distributed around the gyroscope axis 111, when the inertial block 32 rotates, the spark stones will slide along the frosted layer, producing a uniformly distributed spark effect.
[0068] like Figure 1 , Figure 3 and Figure 6 As shown, in some embodiments of the toy gyroscope 10, the housing 1 is provided with a plurality of spark ports 16, each spark port 16 allowing the sparks generated by the friction between the friction surface 51 and the spark stone to pass through to the outside of the housing 1.
[0069] Understandably, the inclusion of spark ports 16 allows users to directly observe the sparking effects generated internally, enhancing the toy's visual appeal and entertainment value. The number, size, and shape of the spark ports 16 can be flexibly configured, adjusted according to design or application requirements. Furthermore, the inclusion of spark ports 16 can also reduce the overall weight of the product to some extent, while increasing its travel distance and rotational speed.
[0070] like Figures 3 to 6 As shown, in some embodiments of the toy gyroscope 10, the housing 1 includes an inner housing 11, a bottom housing 12 and an outer housing 13. The inner housing 11 covers the bottom housing 12, and the bottom housing 12 and the inner housing 11 together define the installation space 14. The outer housing 13 is fitted over the inner housing 11.
[0071] The first mounting position 121 is set on the bottom shell 12, and each moving wheel 21 is rotatably set on the bottom shell 12. The outer shell 13 is provided with a clearance hole 131, which surrounds the second mounting position 132. The gyroscope shaft 111 is set on the inner shell 11 and passes through the clearance hole 131.
[0072] Understandably, the mounting space 14 is used to accommodate internal components such as the moving device 2, the rotating device 3, and the power transmission device 4. The bottom shell 12 serves to support and fix the components. The first mounting position 121 is set on the bottom shell 12 to ensure that each moving wheel 21 can be stably mounted and rotate freely. The outer shell 13 mainly serves to protect the internal components, and at the same time, it encloses the second mounting position 132 through the clearance hole 131, so that the gyroscope shaft 111 can pass through the clearance hole 131 and be exposed to the outside, allowing the product to rotate under the support of the gyroscope shaft 111.
[0073] like Figure 3 and Figure 4 As shown, in some embodiments of the toy gyroscope 10, the bottom shell 12 has a center alignment hole 122, the inner shell 11 has a connecting part 112 on its inner side, and the rotating device 3 also includes a bushing 33, which is inserted into the connecting part 112. One end of the rotating shaft 31 is inserted into the bushing 33, and the other end of the rotating shaft 31 is inserted into the alignment hole 122.
[0074] Understandably, the alignment hole 122 is used to precisely align and secure one end of the rotating shaft 31. This ensures that the rotating shaft 31 can be securely mounted on the base housing 12 and can rotate about a fixed axis. The connecting part 112 is used to receive and secure the bushing 33. In this way, additional support points are provided for the rotating shaft 31, thereby enhancing the rotational stability of the product. The bushing 33 provides a low-friction rotational environment for the rotating shaft 31. The bushing 33 reduces wear that may occur when the rotating shaft 31 is in direct contact with the inner housing 11, extends the service life of components, and improves the durability of the product.
[0075] It should be noted that the rotating shaft 31 can be precisely positioned inside the housing 1 through the alignment hole 122 on the bottom shell 12 and the connecting part 112 on the inner shell 11, ensuring the normal and stable operation of the rotating device 3.
[0076] like Figure 1 , Figure 3 and Figure 6 As shown, in some embodiments of the toy gyroscope 10, a foolproof part 113 is provided on the gyroscope shaft 111, and a foolproof notch 133 is provided on the wall of the clearance hole 131, with the foolproof part 113 inserted into the foolproof notch 133.
[0077] Understandably, the cooperation between the anti-mistake part 113 and the anti-mistake notch 133 can prevent relative rotation between the inner shell 11 and the outer shell 13, thereby improving the stability of the product.
[0078] The following are the beneficial effects of implementing this utility model:
[0079] This utility model relates to a toy spinning top car. By incorporating a rotation device and a power transmission device, this utility model not only retains the basic mobility functions of traditional toy cars but also adds the function of enabling the shell to rotate via the gyroscope axis based on the centrifugal force generated by the rotation of the inertial block. This greatly enriches the functionality of the toy car and increases its fun and interactivity.
[0080] Secondly, all components are integrated into the housing, ensuring the compactness and stability of the overall product structure. Furthermore, the use of inertial blocks eliminates the need for motors and corresponding power supply components, significantly reducing manufacturing costs.
[0081] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the present invention embodiments can be adjusted, combined, and deleted according to actual needs, and the modules in the device of the present invention embodiments can be combined, divided, and deleted according to actual needs.
[0082] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A toy spinning top car, characterized in that, include: The housing has a first mounting position and a second mounting position, and a gyroscope axis is provided on the second mounting position; The mobile device includes a plurality of movable wheels, each of which is rotatably mounted on the first mounting position; A rotating device includes a rotating shaft and an inertial block, wherein one end of the rotating shaft is connected to the gyroscope axis, and the inertial block is sleeved on the rotating shaft; and A power transmission device is disposed inside the housing and is respectively driven and connected to the moving wheel and the inertial block; When the moving wheel drives the inertial block to rotate through the power transmission device, the rotational inertia of the inertial block is increased; when the inertial block rotates inertia and drives the moving wheel to rotate through the power transmission device, the inertial block generates centrifugal force, which enables the shell to rotate through the gyroscope axis.
2. The toy spinning top car according to claim 1, characterized in that, The power transmission device includes a drive gear and a transmission gear. At least one of the moving wheels is driven to connect with the drive gear. The drive gear meshes with the transmission gear. The transmission gear is sleeved on the rotating shaft. The transmission gear is connected to the inertial block. The rotational angular velocity of the transmission gear and the inertial block on the rotating shaft is the same.
3. The toy spinning top car according to claim 2, characterized in that, The moving device includes several moving shafts and several moving wheels. Each moving shaft is rotatably mounted on the housing, and each moving shaft has a moving wheel at both ends. The drive gear is sleeved on one of the moving shafts.
4. The toy spinning top car according to claim 2 or 3, characterized in that, The power transmission device also includes a driven gear, which is rotatably disposed within the housing and meshes with the drive gear and the transmission gear respectively.
5. The toy spinning top car according to any one of claims 1 to 3, characterized in that, The inertial block is disc-shaped, and a through hole is provided in the center of the inertial block. The rotating shaft passes through the through hole.
6. The toy spinning top car according to claim 1, characterized in that, The toy spinning top also includes a spark device, which includes at least one spark stone; Each of the aforementioned spark stones is disposed on the inner wall surface of the shell, and the inertial block is provided with a friction surface, with each of the aforementioned spark stones movably abutting against the friction surface; or Each of the aforementioned spark stones is disposed on the inertial block, and a friction surface is provided on the inner wall surface of the shell, with each of the aforementioned spark stones movably abutting against the friction surface.
7. The toy spinning top car according to claim 6, characterized in that, The friction surface includes a frosted layer disposed on the inertial block, and a plurality of connecting posts are disposed on the inner wall surface of the housing. Each of the connecting posts is evenly distributed in a circle around the gyroscope axis, and each of the spark stones is disposed on each of the connecting posts in a corresponding manner.
8. The toy spinning top car according to claim 6 or 7, characterized in that, The housing has several spark ports, each of which allows sparks generated by the friction between the friction surface and the spark stone to pass through to the outside of the housing.
9. The toy spinning top car according to claim 1, characterized in that, The housing includes an inner shell, a bottom shell, and an outer shell. The inner shell covers the bottom shell, and the bottom shell and the inner shell together define an installation space. The outer shell is fitted over the inner shell. The first mounting position is disposed on the bottom shell, and each of the moving wheels is rotatably disposed on the bottom shell. A clearance hole is provided on the outer shell, and the clearance hole surrounds the second mounting position. The gyroscope axis is disposed on the inner shell and passes through the clearance hole.
10. The toy spinning top car according to claim 9, characterized in that, The bottom shell has a center alignment hole, the inner shell has a connecting part on its inner side, the rotating device also includes a bushing, the bushing is inserted into the connecting part, one end of the rotating shaft is inserted into the bushing, and the other end of the rotating shaft is inserted into the alignment hole. Alternatively, the gyroscope shaft may be provided with a foolproof part, and the wall of the avoidance hole may be provided with a foolproof notch, with the foolproof part inserted into the foolproof notch.