Toy car and toy car system

Abstract

The utility model discloses a toy car and a toy car system. The toy car comprises a shell assembly, and wheels capable of rotating relative to the shell assembly are arranged on the shell assembly; wherein the wheels comprise rolling parts and abutting parts, the abutting parts are arranged on the sides, away from the shell assembly, of the rolling parts, the rolling parts are used for being connected to the upper surfaces of the building blocks and rolling along the upper surfaces of the building blocks, and the abutting parts are used for abutting against the side surfaces of the building blocks. Through the arrangement of the structure, when the toy car is used, the toy car is placed on the building blocks, the rolling parts of the wheels are combined with the upper surfaces of the building blocks, the abutting parts of the wheels abut against the side surfaces of the building blocks, and when the toy car moves, the abutting parts of the wheels abut against the side surfaces of the building blocks all the time. The toy car can move in the arrangement and extending direction of the building blocks, the rolling part provides power for the toy car to move forwards through friction force, the abutting part can limit the toy car all the time, and the toy car can run more stably.

Description

Technical Field

[0001] This invention relates to the field of toy technology, and more particularly to a toy car and toy car system. Background Technology

[0002] People have been exposed to various toys to some extent from childhood to adulthood. Playing with toys can improve hand-eye coordination, develop intelligence, and motivate people. People of all ages love playing with toys. Among all kinds of toys, toy cars have a particularly wide audience.

[0003] Currently, most toy cars on the market are either tracked or trackless. Tracked toy cars usually require a matching track to function, which greatly limits their usability. If either the toy car or the track is damaged, the user has to purchase a new track to use it.

[0004] To address this issue, the present invention provides a toy car that effectively solves the aforementioned problems. It can be used in conjunction with existing building block products without the need for additional tracks. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a toy car that can be used with existing building block products without the need for additional matching tracks.

[0006] The technical solution adopted by this invention to solve its technical problem is:

[0007] A toy car, comprising:

[0008] A housing assembly having wheels that can rotate relative to the housing assembly;

[0009] The wheel includes a rolling part and an abutting part. The abutting part is disposed on the side of the rolling part away from the housing assembly. The rolling part is used to engage with the upper surface of the building block and roll along the upper surface of the building block. The abutting part is used to abut against the side surface of the building block.

[0010] As an improvement of the present invention, the surface of the rolling part is provided with friction texture, which is used to rub against the upper surface of the building block to push the toy car to move.

[0011] As an improvement of the present invention, the surface of the rolling part is provided as a smooth plane to reduce the friction between the rolling part and the upper surface of the building block.

[0012] As an improvement of the present invention, the surface of the rolling part is further provided with a rubber ring, which is rubbed against the upper surface of the building block to push the toy car to move.

[0013] As an improvement of the present invention, the rolling part is provided with a first magnetic suction member, which is used to generate a magnetic attraction force with the second magnetic suction member in the building block, so that the surface of the rolling part is tightly attached to the upper surface of the building block; the wheels are arranged opposite to each other in pairs, and the distance between the abutting parts of the two oppositely arranged wheels is used to match the width of the building block, which ranges from 7.5CM to 7.8CM; the distance between the rolling parts of the two oppositely arranged wheels ranges from 5.5CM to 7.5CM.

[0014] As an improvement of the present invention, it also includes a driving device, wherein the housing assembly is provided with a receiving cavity, the driving device is disposed in the receiving cavity, and the driving device drives the wheel to rotate; the housing assembly includes a front housing and a body housing, the front housing is rotatably connected to the body housing; the front housing is provided with a first connecting portion, the body housing is provided with a second connecting portion, and the first connecting portion is detachably connected to the second connecting portion.

[0015] As an improvement of the present invention, it also includes a bearing assembly, the bearing assembly having both ends connected to the wheel, the housing assembly having a limiting groove at the bottom, the bearing assembly being rotatably connected to the housing assembly, the limiting groove being used to allow the bearing assembly to rotate.

[0016] As an improvement of the present invention, the bearing assembly includes a connecting shaft and a connecting shaft housing. The connecting shaft is rotatably disposed in the connecting shaft housing. Both ends of the connecting shaft are connected to the wheel. The connecting shaft housing is provided with a rotating part. The bottom of the vehicle head housing is provided with a rotating hole. The rotating part is rotatably inserted into the rotating hole.

[0017] As an improvement of the present invention, a limiting plate connected to the bottom of the housing assembly is also provided on the limiting groove, and the limiting plate limits the bearing assembly in the limiting groove.

[0018] As an improvement of the present invention, the width of the limiting groove gradually increases from the middle to both ends, and the bearing assembly is rotatably connected to the middle.

[0019] As an improvement of the present invention, the limiting groove includes two groove sidewalls arranged at an angle, the angle between the two groove sidewalls being in the range of 5 degrees to 60 degrees.

[0020] The present invention also discloses a toy car system, comprising:

[0021] A building block having a top surface and side surfaces;

[0022] A toy car, the toy car including a housing assembly and wheels disposed on the housing assembly and rotatable relative to the housing assembly;

[0023] The wheel includes a rolling part and an abutting part. The abutting part is disposed on the side of the rolling part away from the housing assembly. The rolling part engages with the upper surface of the block and rolls along the upper surface of the block. The abutting part abuts against the side surface of the block.

[0024] As an improvement of the present invention, the surface of the rolling part is provided with friction texture, which frictionally engages with the upper surface of the building block to push the toy car to move, wherein the upper surface of the building block is a plane.

[0025] As an improvement of the present invention, the surface of the rolling part is provided as a smooth plane to reduce the friction between the rolling part and the upper surface of the building block.

[0026] As an improvement of the present invention, the surface of the rolling part is further provided with a rubber ring, which is rubbed against the upper surface of the building block to push the toy car to move.

[0027] As an improvement of the present invention, the rolling part is provided with a first magnetic attractor, and the block is provided with a second magnetic attractor. The first magnetic attractor and the second magnetic attractor generate a magnetic attraction force so that the surface of the rolling part is tightly attached to the upper surface of the block. The wheels are arranged in pairs opposite each other, and the distance between the abutting parts of the two opposite wheels matches the width of the block, which is in the range of 7.5CM-7.8CM. The distance between the rolling parts of the two opposite wheels is in the range of 5.5CM-7.5CM. The housing assembly includes a front housing and a body housing. The front housing is rotatably connected to the body housing. The front housing is provided with a first connecting part, and the body housing is provided with a second connecting part. The first connecting part is detachably connected to the second connecting part.

[0028] As an improvement of the present invention, it also includes a bearing assembly, the bearing assembly having both ends connected to the wheel, the housing assembly having a limiting groove at the bottom, the bearing assembly being rotatably connected to the housing assembly, the limiting groove being used to allow the bearing assembly to rotate.

[0029] As an improvement of the present invention, the bearing assembly includes a connecting shaft and a connecting shaft housing. The connecting shaft is rotatably disposed in the connecting shaft housing. Both ends of the connecting shaft are connected to the wheel. The connecting shaft housing is provided with a rotating part. The bottom of the vehicle head housing is provided with a rotating hole. The rotating part is rotatably inserted into the rotating hole.

[0030] As an improvement of the present invention, a limiting plate connected to the bottom of the housing assembly is also provided on the limiting groove, and the limiting plate limits the bearing assembly in the limiting groove.

[0031] As an improvement of the present invention, the width of the limiting groove gradually increases from the middle to both ends, and the bearing assembly is rotatably connected to the middle part; the limiting groove includes two groove sidewalls arranged at an angle, and the angle between the two groove sidewalls is in the range of 5 degrees to 60 degrees.

[0032] The beneficial effects of the present invention are as follows: With the above-described structure, when in use, the toy car is placed on the building blocks, so that the rolling part of the wheel engages with the upper surface of the building block, and the abutting part of the wheel abuts against the side surface of the building block. When the toy car moves, the abutting part of the wheel always abuts against the side surface of the building block, so that the toy car can move along the arrangement and extension direction of the building blocks. The rolling part provides the power for the toy car to move forward through friction, while the abutting part can always limit the toy car, making the toy car run more stably. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] Figure 1 This is a schematic diagram of the overall structure of the first state of the present invention from one angle;

[0036] Figure 2 This is a schematic diagram of the overall structure from another angle of the first state of the present invention;

[0037] Figure 3 This is an exploded structural diagram of the present invention;

[0038] Figure 4 This is a schematic diagram of the overall structure of the second state of the present invention from one angle;

[0039] Figure 5 This is a schematic diagram of the overall structure of the second state of the present invention from one angle;

[0040] Figure 6 This is a cross-sectional view of the present invention;

[0041] Figure 7 This is a schematic diagram of the overall structure of another embodiment of the present invention;

[0042] Figure 8 This is a schematic diagram of the overall structure of the toy car and building blocks of the present invention at a first angle.

[0043] Figure 9This is a schematic diagram of the overall structure of the toy car and building blocks of the present invention from a second angle.

[0044] Figure 10 This is a cross-sectional view of the toy car and building blocks of the present invention in combination;

[0045] Figure 11 This is a top view of the building blocks of the present invention;

[0046] Figure 12 This is a schematic diagram of the overall structure of the manually operated toy car of the present invention in its first state at one angle.

[0047] Figure 13 This is a schematic diagram of the overall structure of the manually operated toy car of the present invention from another angle in its first state.

[0048] Figure 14 This is a schematic diagram of the overall structure of the manual toy car in its second state according to the present invention;

[0049] Figure 15 This is a schematic diagram of the overall structure of a manually operated toy car in its first state, according to another embodiment of the present invention.

[0050] Figure 16 This is a schematic diagram of the overall structure from another angle of the first state of another embodiment of the present invention.

[0051] Figure 17 This is a schematic diagram of the overall structure from another angle of the first state of another embodiment of the present invention.

[0052] Figure 18 This is a schematic diagram of the overall structure from another angle of the first state of another embodiment of the present invention. Detailed Implementation

[0053] Reference Figures 1 to 18 A toy car, comprising:

[0054] The housing assembly 10 is provided with a wheel 20 that can rotate relative to the housing assembly 10;

[0055] The wheel 20 includes a rolling part 21 and an abutting part 22. The abutting part 22 is disposed on the side of the rolling part 21 away from the housing assembly 10. The rolling part 21 is used to engage with the upper surface 201 of the block 200 and roll along the upper surface of the block 200. The abutting part 22 is used to abut against the side surface 202 of the block 200.

[0056] With the above structure, when in use, the toy car 100 is placed on the building block 200, so that the rolling part 21 of the wheel 20 engages with the upper surface 201 of the building block 200, and the abutting part 22 of the wheel 20 abuts against the side surface 202 of the building block 200. When the toy car 100 moves, the abutting part 22 of the wheel 20 always abuts against the side surface 202 of the building block 200, so that the toy car 100 can move along the arrangement and extension direction of the building blocks 200. The rolling part 21 provides the power for the toy car 100 to move forward through friction, while the abutting part 22 can always limit the toy car 100, so that the toy car 100 runs more stably.

[0057] In this embodiment, the surface of the rolling part 21 is provided with friction textures 211, which are used to rub against the upper surface of the building block 200 to propel the toy car. By setting the above structure and providing friction textures 211, the friction between friction textures 211 and the upper surface 201 of the building block 200 can be further increased. For toy cars with a power device, this makes it easier for the toy car 100 to move along the surface of the building block 200, making the product run more smoothly.

[0058] In one embodiment, reference is made to Figure 16 The surface of the rolling part 21 is provided as a smooth plane to reduce the friction between the rolling part 21 and the upper surface 201 of the building block 200. In use, if the toy car does not have a power unit, the user can manually push the toy car, or place the toy car on an inclined surface and let gravity make the toy car slide on the building block. In this case, the smooth plane can reduce the friction between the surface of the rolling part 21 and the upper surface 201 of the building block 200, allowing the toy car to move more smoothly on the building block 200 and enhancing the product's fun.

[0059] In one embodiment, reference is made to Figure 17 The rolling part 21 is also provided with a rubber ring 214, which rubs against the upper surface of the building block 200 to propel the toy car. Preferably, for toy cars with a power unit, a rubber ring can be added to the surface of the rolling part 21, which has a higher coefficient of friction, making the surface of the rolling part 21 more stably attached to the upper surface 201 of the building block 200. Furthermore, the rubber ring and friction texture can be combined, that is, a rubber ring is provided on the surface of the rolling part 21, and friction texture is added to the surface of the rubber ring, which can further increase the friction. Preferably, the part of the building block 200 that is attached to the friction texture 211 is also provided with a friction part 204, which can further increase the friction between the rolling part 21 and the upper surface 201 of the building block 200.

[0060] In this embodiment, the rolling part 21 is provided with a first magnetic suction member 212, which is used to generate a magnetic attraction force with the second magnetic suction member 203 inside the building block 200, so that the surface of the rolling part 21 is tightly attached to the upper surface 201 of the building block 200. With the above structure, when the toy car 100 is placed on the upper surface 201 of the building block 200, the first magnetic suction member 212 and the second magnetic suction member 203 inside the building block 200 generate a magnetic attraction force, which increases the pressure Fn between the rolling part 21 and the upper surface 201 of the building block 200. According to the friction formula f=μ×Fn, the increase of pressure Fn can further increase the friction between the rolling part 21 and the upper surface 201 of the building block 200, further facilitating the movement of the toy car 100 along the upper surface 201 of the building block 200 and improving the operating efficiency of the product.

[0061] In this embodiment, the wheels 20 are arranged in pairs facing each other. The distance between the abutting portions 22 of the two opposing wheels 20 is matched with the width of the building block 200, ranging from 7.5 cm to 7.8 cm. This structure improves the stability of the product by making its center of gravity more stable. Furthermore, the distance between the abutting portions 22 of the two opposing wheels 20, matching the width of the building block 200, allows the abutting portions 22 to stably abut against the side surface 202 of the building block 200, effectively limiting the toy car 100's direction of travel and allowing it to move along the arrangement and extension direction of the building blocks 200. The standard width of existing building blocks 200 on the market is 7.5 cm. Allowing for this tolerance prevents excessive constraint between the abutting portions and the side surface 202 of the building block 200. While ensuring the limiting effect, it also allows the toy car 100 to move along the extension direction of the building blocks, ensuring product stability.

[0062] In this embodiment, the distance between the rolling portions 21 of the two opposing wheels 20 ranges from 5.5 cm to 7.5 cm. By setting the above structure, the distance between the abutting portions 22 of the two opposing wheels 20 is set to 5.5 cm to 7.5 cm, combined with a distance between the abutting portions 22 of the two opposing wheels 20 being set to 7.5 cm to 7.8 cm. This allows for compatibility with most building blocks 200. Furthermore, the narrower width of the rolling portions 21 allows the toy car 100 to turn more easily. Also, some existing building blocks 200 have windows in the middle, and the narrower abutting portions 21 can stably attach to the frame of the window edge.

[0063] In this embodiment, a drive device 30 is also included. The housing assembly 10 has a receiving cavity 13, and the drive device 30 is disposed within the receiving cavity 13. The drive device 30 drives the wheels 20 to rotate. With the above-described structure, the drive device 30 can drive the wheels 20 to rotate, enabling the toy car 100 to move automatically on the surface of the building blocks 200, freeing the user's hands and increasing the product's fun factor. Furthermore, placing the drive device 30 within the receiving cavity 13 effectively protects and conceals the drive device 30, further enhancing the product's stability and aesthetics.

[0064] In this embodiment, a transmission assembly 40 is also included. The transmission assembly 40 is disposed within the receiving cavity 13. The driving device 30 drives the transmission assembly 40, and the transmission assembly 40 drives the wheel to rotate. With the above-described structure, the transmission assembly can connect the driving device 30 and the wheel 20, making transmission more convenient. Furthermore, by using gears of different ratios, the transmission ratio can be changed, thereby changing the speed of the toy car 100.

[0065] In this embodiment, the housing assembly 10 includes a front housing 11 and a body housing 12, with the front housing 11 rotatably connected to the body housing 12. The rotatably configured front housing 11 and body housing 12 cooperate to allow the toy car 100 to turn when the extension direction of the building block 200 changes during use. The abutment portion 22 of the wheel 20 on the front housing 11 abuts against the side surface of the building block 200, forcing the wheel 20 and the front housing 11 to turn. This allows the toy car 100 to turn, enabling it to adapt to building blocks 200 of more shapes and allowing it to move along the extension direction of the building blocks, thus ensuring product stability.

[0066] In this embodiment, the front shell 11 is provided with a first connecting part 111, and the body shell 12 is provided with a second connecting part 121. The first connecting part 111 is detachably connected to the second connecting part 121. With the above-described structure, the detachable first connecting part 111 and second connecting part 121 allow users to disassemble and replace the front shell 11 or the body shell 12. Users can easily replace one shell if it is damaged or contaminated, thus extending the product's lifespan. Alternatively, users can combine different front shells 11 and body shells 12 to create more diverse toy cars, enhancing the product's appeal.

[0067] In this embodiment, a bearing assembly 50 is also included. Both ends of the bearing assembly 50 are connected to the wheels 20. A limiting groove 113 is provided at the bottom of the housing assembly 10. The bearing assembly 50 is rotatably connected to the housing assembly 10, and the limiting groove 113 allows the bearing assembly 50 to rotate. With this structure, the bearing assembly 50 is rotatably connected to the housing assembly 10, allowing the bearing assembly 50 and the wheels to rotate relative to the housing assembly 10, thus enabling the toy car to turn. The limiting groove 113 limits the rotation angle of the bearing assembly 50, preventing excessive rotation angle from hindering the toy car 100's forward movement and ensuring product stability.

[0068] In this embodiment, the bearing assembly 50 includes a connecting shaft 51 and a connecting shaft housing 52. The connecting shaft 51 is rotatably disposed on the connecting shaft housing 52, and both ends of the connecting shaft 51 are connected to wheels 20. The connecting shaft housing 52 is provided with a rotating part 521, and the bottom of the car head housing 11 is provided with a rotating hole 112. The rotating part 521 is rotatably inserted into the rotating hole 112. With the above structure, when in use, if the extension direction of the building block 200 changes, the abutment part 22 of the wheel 20 disposed on the car head housing 11 abuts against the side surface of the building block 200, forcing the wheel 20 disposed on the car head housing 11 to rotate, thereby driving the connecting shaft housing 52 to rotate and the car head housing 11 to turn, further facilitating the toy car 100 to turn.

[0069] In one embodiment, reference is made to Figure 18 A limiting plate 101, which connects to the bottom of the housing assembly 10, is also provided on the limiting groove 113. The limiting plate 101 limits the bearing assembly 50 in the limiting groove 113. With the above structure, in use, since the limiting part 101 limits the bearing assembly 50 in the limiting groove 113, when the extension direction of the building block 200 changes, the bearing assembly 50 will be limited to rotate in the limiting groove 113, thereby changing the direction of the wheels 20 of the front housing 11, thus effectively realizing the steering of the toy car 100.

[0070] In this embodiment, the width of the limiting groove 113 gradually increases from the middle towards both ends, and the bearing assembly 50 is rotatably connected to the middle. Specifically, the limiting groove 113 includes two groove sidewalls 1131 arranged at an angle, with the included angle between the two groove sidewalls 1131 ranging from 5 degrees to 60 degrees. With the above structure, the bearing assembly 50 rotates within the limiting groove 113 with the middle as the fulcrum, within the limiting groove 113 with an included angle ranging from 5 degrees to 60 degrees. This allows the bearing assembly 50 to rotate at an angle ranging from 5 degrees to 60 degrees within the limiting groove 113, thereby changing the direction of the wheels 20 of the front housing 11 and effectively turning the toy car 100.

[0071] In this embodiment, a battery 60 is also included. The battery 60 is electrically connected to the drive device 30 and supplies power to the drive device 30. Through the above structural arrangement, the drive device 30 can be effectively powered, improving the product's battery life. Furthermore, the battery can be a rechargeable battery or a replaceable battery, which can further improve the product's battery life.

[0072] In this embodiment, the front housing 11 includes a front base 1111 and a front cover 1112, with the front cover 1112 detachably fitted onto the front base 1111. The body housing 12 includes a body base 1211, a body cover 1212, and a fixing cover 1213, with the body cover 1212 detachably fitted onto the body base 1211, and the fixing cover 1213 disposed between the body cover 1212 and the body base 1211. The detachable fit of the front cover 1112 and the body cover 1212 onto the body base 1211 allows users to freely replace different front covers 1112 and / or body covers 1212, enabling users to personalize product combinations and improve product aesthetics. The fixing cover 1213 stably fixes the drive unit 30, transmission assembly 40, and battery 60 within the receiving cavity 13, improving product stability.

[0073] Reference Figures 1 to 10 A toy car system comprising:

[0074] The building block 200 has a top surface 201 and a side surface 202;

[0075] Toy car 100, the toy car includes a housing assembly 10 and wheels 20 disposed on the housing assembly 10 and rotatable relative to the housing assembly 10;

[0076] The wheel 20 includes a rolling part 21 and an abutting part 22. The abutting part 22 is disposed on the side of the rolling part 21 away from the housing assembly 10. The rolling part 21 engages with the upper surface 201 of the block 200 and rolls along the upper surface 201 of the block 200. The abutting part 22 abuts against the side surface 202 of the block 200.

[0077] With the above structure, when in use, the toy car 100 is placed on the building block 200, so that the rolling part 21 of the wheel 20 engages with the upper surface 201 of the building block 200, and the abutting part 22 of the wheel 20 abuts against the side surface 202 of the building block 200. When the toy car 100 moves, the abutting part 22 of the wheel 20 always abuts against the side surface 202 of the building block 200, so that the toy car 100 can move along the arrangement and extension direction of the building blocks 200. The rolling part 21 provides the power for the toy car 100 to move forward through friction, while the abutting part 22 can always limit the toy car 100, so that the toy car 100 runs more stably.

[0078] In this embodiment, the building block 200 includes a fan-shaped building block, the diameter of the circle containing the edge of the fan-shaped building block is "D1", the width of the fan-shaped building block is "D2", and the ratio of D2 to D1 is in the range of 5.5-6.5. By setting up fan-shaped ring blocks, the toy car can move along the fan-shaped ring blocks, thus achieving the toy car's turning. Furthermore, setting the ratio of D2 to D1 to a range of 5.5-6.5 allows the toy car to move smoothly along the fan-shaped ring blocks, thereby achieving the turning and preventing the toy car from detaching from the fan-shaped ring blocks. This makes the product more convenient and stable to use. If the ratio of D2 to D1 is too small, the curvature of the fan-shaped ring block's edge will be too large, making it easy for the toy car to detach from or get stuck when turning along the fan-shaped ring blocks. Conversely, if the ratio of D2 to D1 is too small, the curvature of the fan-shaped ring block's edge will be too small, requiring a longer fan-shaped ring block to achieve the same turning angle. This results in an excessively large fan-shaped ring block, making it inconvenient to use and reducing turning efficiency.

[0079] In this embodiment, the surface of the rolling part 21 is provided with friction textures 211, which rub against the upper surface 201 of the building block 200 to propel the toy car. The upper surface 201 of the building block 200 is flat. By setting the above structure and providing friction textures 211, the friction between friction textures 211 and the upper surface 201 of the building block 200 can be further increased. For toy cars with a power unit, this makes it easier for the toy car 100 to move along the surface of the building block 200, resulting in smoother product operation.

[0080] In one embodiment, reference is made to Figure 16 The surface of the rolling part 21 is provided as a smooth plane to reduce the friction between the rolling part 21 and the upper surface 201 of the building block 200. In use, if the toy car does not have a power unit, the user can manually push the toy car, or place the toy car on an inclined surface and let gravity make the toy car slide on the building block. In this case, the smooth plane can reduce the friction between the surface of the rolling part 21 and the upper surface 201 of the building block 200, allowing the toy car to move more smoothly on the building block 200 and enhancing the product's fun.

[0081] In one embodiment, reference is made to Figure 17The rolling part 21 is also provided with a rubber ring, which rubs against the upper surface of the building block 200 to propel the toy car. Preferably, for toy cars with a power unit, a rubber ring can be added to the surface of the rolling part 21. The rubber ring has a higher coefficient of friction, which makes the surface of the rolling part 21 more stably attached to the upper surface 201 of the building block 200. Furthermore, the rubber ring and friction texture can be combined, that is, a rubber ring is provided on the surface of the rolling part 21, and friction texture is added to the surface of the rubber ring, which can further increase the friction. Preferably, the part of the building block 200 that is attached to the friction texture 211 is also provided with a friction part 204, which can further increase the friction between the rolling part 21 and the upper surface 201 of the building block 200.

[0082] In this embodiment, the rolling part 21 is provided with a first magnetic suction member 212, and the building block 200 is provided with a second magnetic suction member 203. A magnetic attraction force is generated between the first magnetic suction member 212 and the second magnetic suction member 203, so that the surface of the rolling part 21 is tightly attached to the upper surface 201 of the building block 200. With the above structure, when the toy car 100 is placed on the upper surface 201 of the building block 200, the first magnetic suction member 212 and the second magnetic suction member 203 inside the building block 200 generate a magnetic attraction force, increasing the pressure Fn between the rolling part 21 and the upper surface 201 of the building block 200. According to the friction formula f=μ×Fn, the increased pressure Fn further increases the friction between the rolling part 21 and the upper surface 201 of the building block 200, further facilitating the movement of the toy car 100 along the upper surface 201 of the building block 200 and improving the product's operating efficiency.

[0083] In this embodiment, the wheels 20 are arranged in pairs facing each other. The distance between the abutting portions 22 of the two opposing wheels 20 matches the width of the building block 200, ranging from 7.5 cm to 7.8 cm. This structure enhances the product's stability by making its center of gravity more stable. Furthermore, the distance between the abutting portions 22 of the two opposing wheels 20, matching the width of the building block 200, allows the abutting portions 22 to stably abut against the side surface 202 of the building block 200, effectively restricting the toy car 100's direction of travel and allowing it to move along the arrangement and extension direction of the building blocks 200. The standard width of existing building blocks 200 on the market is 7.5 cm. Allowing for this tolerance prevents excessive constraint between the abutting portions and the side surface 202 of the building block 200. While ensuring the limiting effect, it also allows the toy car 100 to move along the extension direction of the building blocks, ensuring product stability.

[0084] In this embodiment, the distance between the rolling portions 21 of the two opposing wheels 20 ranges from 5.5 cm to 7.5 cm. By setting the above structure, the distance between the abutting portions 22 of the two opposing wheels 20 is set to 5.5 cm to 7.5 cm, combined with a distance between the abutting portions 22 of the two opposing wheels 20 being set to 7.5 cm to 7.8 cm. This allows for compatibility with most building blocks 200. Furthermore, the narrower width of the rolling portions 21 allows the toy car 100 to turn more easily. Also, some existing building blocks 200 have windows in the middle, and the narrower abutting portions 21 can stably attach to the frame of the window edge.

[0085] In this embodiment, a drive device 30 is also included. The housing assembly 10 has a receiving cavity 13, and the drive device 30 is disposed within the receiving cavity 13. The drive device 30 drives the wheels 20 to rotate. With the above-described structure, the drive device 30 can drive the wheels 20 to rotate, enabling the toy car 100 to move automatically on the surface of the building blocks 200, freeing the user's hands and increasing the product's fun factor. Furthermore, placing the drive device 30 within the receiving cavity 13 effectively protects and conceals the drive device 30, further enhancing the product's stability and aesthetics.

[0086] In this embodiment, a transmission assembly 40 is also included. The transmission assembly 40 is disposed within the receiving cavity 13. The driving device 30 drives the transmission assembly 40, and the transmission assembly 40 drives the wheel to rotate. With the above-described structure, the transmission assembly can connect the driving device 30 and the wheel 20, making transmission more convenient. Furthermore, by using gears of different ratios, the transmission ratio can be changed, thereby changing the speed of the toy car 100.

[0087] In this embodiment, the housing assembly 10 includes a front housing 11 and a body housing 12, with the front housing 11 rotatably connected to the body housing 12. The rotatably configured front housing 11 and body housing 12 cooperate to allow the toy car 100 to turn when the extension direction of the building block 200 changes during use. The abutment portion 22 of the wheel 20 on the front housing 11 abuts against the side surface of the building block 200, forcing the wheel 20 and the front housing 11 to turn. This allows the toy car 100 to turn, enabling it to adapt to building blocks 200 of more shapes and allowing it to move along the extension direction of the building blocks, thus ensuring product stability.

[0088] In this embodiment, the front shell 11 is provided with a first connecting part 111, and the body shell 12 is provided with a second connecting part. The first connecting part 111 is detachably connected to the second connecting part 121. With the above-described structure, the detachable first connecting part 111 and second connecting part 121 allow users to disassemble and replace the front shell 11 or the body shell 12. Users can easily replace one shell if it is damaged or contaminated, thus extending the product's lifespan. Alternatively, users can combine different front shells 11 and body shells 12 to create more diverse toy cars, enhancing the product's appeal.

[0089] In this embodiment, a bearing assembly 50 is also included. Both ends of the bearing assembly 50 are connected to the wheels 20. A limiting groove 113 is provided at the bottom of the housing assembly 10. The bearing assembly 50 is rotatably connected to the housing assembly 10, and the limiting groove 113 allows the bearing assembly 50 to rotate. With this structure, the bearing assembly 50 is rotatably connected to the housing assembly 10, allowing the bearing assembly 50 and the wheels to rotate relative to the housing assembly 10, thus enabling the toy car to turn. The limiting groove 113 limits the rotation angle of the bearing assembly 50, preventing excessive rotation angle from hindering the toy car 100's forward movement and ensuring product stability.

[0090] In this embodiment, the bearing assembly 50 includes a connecting shaft 51 and a connecting shaft housing 52. The connecting shaft 51 is rotatably disposed on the connecting shaft housing 52, and both ends of the connecting shaft 51 are connected to wheels 20. The connecting shaft housing 52 is provided with a rotating part 521, and the bottom of the car head housing 11 is provided with a rotating hole 112. The rotating part 521 is rotatably inserted into the rotating hole 112. With the above structure, when in use, if the extension direction of the building block 200 changes, the abutment part 22 of the wheel 20 disposed on the car head housing 11 abuts against the side surface of the building block 200, forcing the wheel 20 disposed on the car head housing 11 to rotate, thereby driving the connecting shaft housing 52 to rotate and the car head housing 11 to turn, further facilitating the toy car 100 to turn.

[0091] In one embodiment, reference is made to Figure 18 A limiting plate 101, which connects to the bottom of the housing assembly 10, is also provided on the limiting groove 113. The limiting plate 101 limits the bearing assembly 50 in the limiting groove 113. With the above structure, in use, since the limiting plate 101 limits the bearing assembly 50 in the limiting groove 113, when the extension direction of the building block 200 changes, the bearing assembly 50 will be limited to rotate in the limiting groove 113, thereby changing the direction of the wheels 20 of the front housing 11, thus effectively realizing the steering of the toy car 100.

[0092] In this embodiment, the width of the limiting groove 113 gradually increases from the middle towards both ends, and the bearing assembly 50 is rotatably connected to the middle. Specifically, the limiting groove 113 includes two groove sidewalls 1131 arranged at an angle, with the angle between the two groove sidewalls 1131 ranging from 5 degrees to 60 degrees. With the above structure, the bearing assembly 50 rotates within the limiting groove 113 with the middle as the fulcrum, within the limiting groove 113 with an angle ranging from 5 degrees to 60 degrees. This allows the bearing assembly 50 to rotate within the limiting groove 113 at an angle ranging from 5 degrees to 60 degrees, thereby changing the direction of the wheels 20 on the front housing 11 and effectively turning the toy car 100.

[0093] In this embodiment, a battery 60 is also included. The battery 60 is electrically connected to the drive device 30 and supplies power to the drive device 30. Through the above structural arrangement, the drive device 30 can be effectively powered, improving the product's battery life. Furthermore, the battery can be a rechargeable battery or a replaceable battery, which can further improve the product's battery life.

[0094] In this embodiment, the front housing 11 includes a front base 1111 and a front cover 1112, with the front cover 1112 detachably fitted onto the front base 1111. The body housing 12 includes a body base 1211, a body cover 1212, and a fixing cover 1213, with the body cover 1212 detachably fitted onto the body base 1211, and the fixing cover 1213 disposed between the body cover 1212 and the body base 1211. The detachable fit of the front cover 1112 and the body cover 1212 onto the body base 1211 allows users to freely replace different front covers 1112 and / or body covers 1212, enabling users to personalize product combinations and improve product aesthetics. The fixing cover 1213 stably fixes the drive unit 30, transmission assembly 40, and battery 60 within the receiving cavity 13, improving product stability.

[0095] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of the present invention is limited to these descriptions. Any methods or structures that are similar to or identical to those of the present invention, or any technical deductions or substitutions made based on the concept of the present invention, should be considered within the scope of protection of the present invention.

Claims

1. A toy car, characterized in that, include: A housing assembly (10) having wheels (20) that can rotate relative to the housing assembly (10). The wheel (20) includes a rolling part (21) and an abutting part (22). The abutting part (22) is disposed on the side of the rolling part (21) away from the housing assembly (10). The rolling part (21) is used to engage with the upper surface (201) of the block (200) and roll along the upper surface of the block (200). The abutting part (22) is used to abut against the side surface (202) of the block (200).

2. The toy car according to claim 1, characterized in that, The surface of the rolling part (21) is provided with friction texture (211), which is used to rub against the upper surface of the building block (200) to push the toy car to move; or the surface of the rolling part (21) is a smooth plane to reduce the friction between the rolling part (21) and the upper surface (201) of the building block (200).

3. The toy car according to claim 1, characterized in that, The surface of the rolling part (21) is also provided with a rubber ring, which is rubbed against the upper surface of the building block (200) to push the toy car to move.

4. The toy car according to claim 1, characterized in that, The rolling part (21) is provided with a first magnetic suction member (212), which is used to generate a magnetic attraction force with the second magnetic suction member (203) in the block (200) so that the surface of the rolling part (21) is tightly attached to the upper surface (201) of the block (200); the wheels (20) are arranged opposite to each other in pairs, and the distance between the abutting parts (22) of the two opposite wheels (20) is used to match the width of the block (200), which is 7.5CM-7.8CM; the distance between the rolling parts (21) of the two opposite wheels (20) is 5.5CM-7.5CM.

5. The toy car according to claim 1, characterized in that, It also includes a drive device (30), the housing assembly (10) is provided with a receiving cavity (13), the drive device (30) is disposed in the receiving cavity (13), and the drive device (30) drives the wheel (20) to rotate; the housing assembly (10) includes a front housing (11) and a body housing (12), the front housing (11) is rotatably connected to the body housing (12); the front housing (11) is provided with a first connecting part (111), the body housing (12) is provided with a second connecting part (121), and the first connecting part (111) is detachably connected to the second connecting part (121).

6. The toy car according to claim 5, characterized in that, It also includes a bearing assembly (50), which is connected to the wheel (20) at both ends. The housing assembly (10) has a limiting groove (113) at the bottom. The bearing assembly (50) is rotatably connected to the housing assembly (10). The limiting groove (113) is used to allow the bearing assembly (50) to rotate.

7. The toy car according to claim 6, characterized in that, The bearing assembly (50) includes a connecting shaft (51) and a connecting shaft housing (52). The connecting shaft (51) is rotatably disposed on the connecting shaft housing (52). Both ends of the connecting shaft (51) are connected to the wheel (20). The connecting shaft housing (52) is provided with a rotating part (521). The bottom of the headstock housing (11) is provided with a rotating hole (112). The rotating part (521) is rotatably inserted into the rotating hole (112).

8. The toy car according to claim 6, characterized in that, The limiting groove (113) is also covered with a limiting plate (101) that connects to the bottom of the housing assembly (10), and the limiting plate (101) limits the bearing assembly (50) in the limiting groove (113).

9. The toy car according to claim 6, characterized in that, The width of the limiting groove (113) gradually increases from the middle to both ends, and the bearing assembly (50) is rotatably connected to the middle part; the limiting groove (113) includes two groove sidewalls (1131) arranged at an angle, and the angle between the two groove sidewalls (1131) is in the range of 5 degrees to 60 degrees.

10. A toy car system, characterized in that, include: A building block (200) having a top surface (201) and a side surface (202); A toy car (100) includes a housing assembly (10) and wheels (20) disposed on the housing assembly (10) and rotatable relative to the housing assembly (10). The wheel (20) includes a rolling part (21) and an abutting part (22). The abutting part (22) is disposed on the side of the rolling part (21) away from the housing assembly (10). The rolling part (21) engages with the upper surface (201) of the block (200) and rolls along the upper surface (201) of the block (200). The abutting part (22) abuts against the side surface (202) of the block (200).

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