Toy car chassis structure and toy slot car

By designing an adjustable magnet height adjustment component in the bottom structure of the toy car, the problem of unstable operation of the race car under complex road conditions was solved, and the stability and service life of the race car during turning were achieved.

WO2026025527A1PCT designated stage Publication Date: 2026-02-05SHANTOU CHENGHAI YINGBAO INTELLIGENT TOYS CO LTD
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Patent Information

Application Number
PCT/CN2024/110533
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-08-01
Filing Date
2024-08-08
Publication Date
2026-02-05

AI Technical Summary

Technical Problem

Existing toy track racing cars are unstable when moving at non-uniform speeds because the height of the magnets is not adjustable. This can even lead to the cars overturning when turning or accelerating or decelerating rapidly.

Method used

The toy car's undercarriage structure is designed with adjustable magnet height. The position of the magnet in the vertical direction can be adjusted by adjusting the components to ensure the car runs stably on complex road conditions.

Benefits of technology

By adjusting the attraction between the magnet and the iron bar, the stability of the race car during cornering is improved, preventing rollovers and extending the lifespan of the toy car.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of toy cars, and in particular to a toy car chassis structure and a toy slot car. The toy car chassis structure comprises a bottom housing, a magnet, and a power assembly. The bottom housing is provided with a mounting cavity having an opening at an upper end, front ends of two sides of the bottom housing are provided with front wheels, and rear ends of the two sides of the bottom housing are provided with rear wheels; the magnet is movably arranged below the bottom housing by means of an adjustment assembly, and the adjustment assembly is used for adjusting the height of the magnet in the vertical direction; and the power assembly is arranged in the mounting cavity and is used for driving the front wheels and / or the rear wheels to rotate. The toy car chassis structure in the present application is applied to the toy slot car. The magnet is designed as an adjustable structure, thereby ensuring that the toy slot car can travel stably when traversing complex track conditions.
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Description

A toy car chassis structure and a toy track racing car

[0001] This disclosure is based on and claims priority to Chinese Patent Application No. 202421854026.8, filed on August 1, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application belongs to the field of toy car technology, specifically a toy car chassis structure and a toy track racing car. Background Technology

[0003] Toy racing cars are a type of competitive toy. In this era of rapid technological advancement, toy racing cars are not only a leisure toy for children but also a form of educational competition. They can promote teamwork and test both hands-on and problem-solving skills. For example, during racing games, children need to observe with their eyes and operate with their hands. Only with a high degree of eye-hand coordination can their cars run fast and steadily, which helps with brain development and physical coordination.

[0004] Toy racing cars, while traveling at high speeds on a track, constantly encounter turns and bumps. The principle behind their ability to travel along a track is that iron bars are placed on the track, and magnets are located on the bottom of the car. The interaction between the magnets and the iron bars allows the car to travel at high speed along the pre-set track. However, because the height of the magnets in existing technology is not adjustable, when encountering non-uniform speed conditions, the centrifugal force generated by high-speed motion, or sudden acceleration or deceleration, can cause abnormalities in the car's operation. For example, it may fail to turn along the track, become unstable during turns, or deviate from the track and rub against the track walls. These abnormalities can range from reducing the car's speed to, in severe cases, causing it to fly off the track or overturn.

[0005] Therefore, there is an urgent need to design an adjustable magnet height position to change the gravitational force between the bottom of the race car and the track.

[0006] Summary of the Invention

[0007] To address the problems mentioned above, this application provides a toy car chassis structure and a toy track racing car. By designing the magnets as an adjustable structure, the toy track racing car can be driven stably when traversing complex road conditions.

[0008] The first aspect of this application is to provide a toy car chassis structure, comprising:

[0009] The bottom shell has a mounting cavity with an opening at the top. Front wheels are provided at the front ends of both sides of the bottom shell, and rear wheels are provided at the rear ends of both sides of the bottom shell.

[0010] The magnet is movably positioned below the bottom shell via an adjustment component, which is used to adjust the height of the magnet in the vertical direction.

[0011] A power unit, located within the mounting cavity, is used to drive the front and / or rear wheels to rotate.

[0012] Furthermore, the adjustment component includes a mounting base and a limiting member that drives the mounting base to move vertically; one end of the limiting member is engaged with the mounting base, and the other end is retractably mounted on the bottom shell, with a magnet mounted on the mounting base.

[0013] Furthermore, a raised seat is provided on each side of the bottom shell, and a screw hole is provided on the raised seat; the limiting component corresponds to the screw hole one by one, and the limiting component is a bolt, the nut of the bolt is engaged with the mounting seat, and the stud of the bolt is screwed into the screw hole.

[0014] Furthermore, the mounting base has side-opening slots at both ends in the width direction, a notch at the bottom of the slot, an adjustment hole at the top of the slot, a nut that is confined in the slot, and a stud that extends downward from the notch and connects to the screw hole.

[0015] Furthermore, a mounting groove is provided in the middle of the mounting base, and the magnet is installed in the mounting groove.

[0016] Furthermore, the bottom of the mounting groove is provided with a limiting step, and the top two sides of the mounting groove are provided with elastic blocks, each elastic block including a hook; the lower end face of the magnet abuts against the limiting step, and the upper end face of the magnet abuts against the hook of the elastic block.

[0017] Furthermore, the mounting base has an outwardly extending limiting protrusion in the middle, and the bottom surface of the base shell has a limiting notch that matches the limiting protrusion.

[0018] Furthermore, an upper shell is detachably connected to the bottom shell, and the power assembly is located in the cavity formed by the bottom shell and the upper shell; the power assembly includes a motor, a first gear connected to the motor shaft of the motor, and a second gear meshing with the first gear. The second gear is mounted on the power shaft, and the two ends of the power shaft extend out of the shaft holes on both sides of the bottom shell and are connected to the rear wheel.

[0019] Furthermore, the upper shell has downwardly extending connecting parts on both sides, with buckle holes on the connecting parts, and mounting protrusions corresponding to the buckle holes on both sides of the bottom shell, with the mounting protrusions being barbed.

[0020] The second aspect of this application is to provide a toy track racing car, including the toy car chassis structure of any of the above.

[0021] Compared with the prior art, the beneficial effects of this application are as follows:

[0022] (1) The magnet in this application is movably set below the bottom shell by an adjustment component. The adjustment component is used to adjust the height of the magnet in the vertical direction. During play, the user can adjust the attraction between the magnet and the iron bar according to various road conditions during the ride to ensure stability during the ride.

[0023] (2) The bottom shell of this application is detachably connected to the upper shell. The power assembly is housed within the cavity formed by the bottom shell and the upper shell. The upper shell has downwardly extending connecting parts on both sides, and the connecting parts have snap holes. The bottom shell has mounting protrusions on both sides corresponding to the snap holes. The mounting protrusions are barbed. The upper shell and the bottom shell are installed and disassembled by snap-fit, which is convenient and quick, and makes it easier for consumers to replace the rear wheel, the power shaft, and the second gear, indirectly extending the service life of the toy car. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 is an overall schematic diagram of the toy car bottom structure provided in an embodiment of this application;

[0026] Figure 2 is an exploded structural diagram of the bottom structure of a toy car provided in an embodiment of this application;

[0027] Figure 3 is a schematic diagram of the bottom structure of a toy car chassis provided in an embodiment of this application;

[0028] Figure 4 is a schematic diagram of the mounting base structure of the toy car bottom structure provided in an embodiment of this application;

[0029] Wherein: 1-bottom shell, 11-mounting cavity, 12-protrusion seat, 121-screw hole, 13-limiting notch, 14-shaft hole, 15-mounting protrusion, 2-magnet, 3-power component, 31-motor, 32-first gear, 33-second gear, 34-power shaft, 4-front wheel, 5-rear wheel, 6-adjustment component, 61-mounting seat, 611-slot, 612-notch, 613-adjustment hole, 614-mounting groove, 615-limiting step, 616-elastic block, 6161-hook, 617-limiting protrusion, 62-limiting component, 621-nut, 622-stud, 7-upper shell, 71-connecting part, 72-fastening hole. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application.

[0031] The present application will now be discussed in detail with reference to Figures 1 to 4 and specific embodiments.

[0032] As shown in Figures 1-4, this application provides a toy car chassis structure that can be assembled with the body of a toy car to form a toy car for children to play with. The chassis structure includes a bottom shell 1, a magnet 2, and a power assembly 3. The bottom shell 1 has a mounting cavity 11 with an opening at the top. The power assembly 3 is disposed in the mounting cavity 11. Rotatable front wheels 4 are provided on both front ends of the bottom shell 1, and rotatable rear wheels 5 are provided on both rear ends of the bottom shell 1. The power assembly 3 can drive the front wheels to rotate, drive the rear wheels to rotate, or drive both the front and rear wheels to rotate simultaneously. In this embodiment, the power assembly 3 driving the rear wheels 5 to rotate is used as an example for explanation. The magnet 2 is movably disposed below the bottom shell 1 through an adjustment assembly 6, which is used to adjust the height of the magnet 2 in the vertical direction. It can be seen that toy track racing cars are usually equipped with tracks during play, and the tracks are usually varied, including uphill sections. To make a toy track racer travel along a track with different road conditions such as downhill slopes and turns, a magnet 2 needs to be placed at the bottom of the toy track racer, and an iron bar (not shown in the figure) needs to be placed on the track. The attraction between the magnet 2 and the iron bar allows the toy track racer to travel quickly along the track. However, the magnitude of the attraction between the magnet 2 and the iron bar will affect the stability of the toy track racer, especially during turns. If the attraction is too small, the stability will be poor, and it may even cause the racer to tip over. Based on this, this application sets the magnet 2 to an adjustable structure. During play, users can appropriately adjust the attraction between the magnet 2 and the iron bar according to various road conditions during the ride to ensure stability during the ride.

[0033] In some embodiments, referring to Figures 3 and 4, the adjustment component 6 includes a mounting base 61 and a limiting member 62 that drives the mounting base 61 to move vertically. One end of the limiting member 62 is engaged with the mounting base 61, and the other end is retractably mounted on the bottom shell 1. The magnet 2 is mounted on the mounting base 61 and moves vertically with the mounting base 61. In other words, the mounting base 61 is relatively fixed at one end of the limiting member 62, while the other end of the limiting member 62 is movably mounted on the bottom shell 1. The user can adjust the retraction of the limiting member 62 to move the mounting base 61 up and down, thereby adjusting the position of the magnet 2. When the user finds that the toy track car cannot turn along the track or is unstable during turning, the position of the magnet 2 can be adjusted by the adjustment component 6 to shorten the distance between it and the iron bar, increasing the attraction of the toy track car to the track and making the toy track car more stable when turning. It should be noted that the limiting component 62 in this application only emphasizes its restriction on the vertical degree of freedom of the mounting base 61, and does not limit whether it restricts the degree of freedom in other directions. As long as the limiting component 62 can realize the up and down adjustment of the mounting base 61, it is within the protection scope of this application. In other words, the limiting component 62 can also be understood as a lifting component, such as the limiting component 62 being a nut and screw assembly, but it is not limited to this.

[0034] Specifically, in this embodiment, the magnet 2 is located between the front wheel 4 and the rear wheel 5. Since the power component 3 drives the rear wheel 5 to rotate, and the rear wheel 5 drives the front wheel 4 to rotate, the magnet 2 is positioned close to the rear wheel 5, which can maximize the stability of the rear wheel 5 during driving, thereby ensuring the stability of the entire vehicle undercarriage structure during driving.

[0035] In some embodiments, referring to Figure 2, a protrusion 12 is provided on each of the two sides of the bottom shell 1. The protrusion 12 protrudes outward from the side wall of the bottom shell 1 and has a certain thickness. A screw hole 121 is provided on the protrusion 12. The screw hole 121 extends from top to bottom and can penetrate the protrusion 12 or not, as long as it can achieve a certain adjustable range. Each screw hole 121 corresponds to a limiting member 62, and the mounting base 61 is connected to the protrusion 12 through the limiting member 62. Preferably, the limiting member 62 is a bolt, with the nuts 621 of the two bolts respectively snapped into both ends of the mounting base 61 along its length. The mounting base 61 only restricts the vertical degree of freedom of the nuts 621, not their rotational degree of freedom, meaning the bolts can rotate relative to the mounting base 61. The studs 622 of the bolts are screwed into the screw holes 121. By adjusting the depth of the bolts in the screw holes 121, the mounting base 61 can be raised or lowered, thereby raising or lowering the magnet 2 on the mounting base 61. As is well known, the distance between the bottom of a toy race car and the ground is small, and the installation space for the limiting member 62 is also small, making it unsuitable to design it as a complex structure. On the other hand, the adjustable range of the magnet 2 is usually also small. Therefore, the use of bolts as the limiting member in this application results in a simple structure, convenient adjustment, and minimal impact on the cost of the toy race car.

[0036] In some embodiments, referring to Figure 4, the mounting base 61 has side-opening slots 611 at both ends in the width direction. A notch 612 is provided at the bottom of the slot 611, with the opening direction of the notch 612 being the same as that of the slot 611. The bolt nut 621 enters through the opening of the slot 611, while the bolt stud 622 enters through the opening of the notch 612. An adjustment hole 613 is provided at the top of the slot 611. The nut 621 is confined within the slot 611 and cannot be removed from the adjustment hole 613. The nut 621 is positioned directly opposite the adjustment hole 613, allowing it to rotate freely within the slot 611. The stud 622 extends downward from the notch 612 and connects to the screw hole 121. When the height of the magnet 2 needs to be adjusted, a tool is used to position itself on the nut 621 through the adjustment hole 613. Rotating the tool causes the nut 621 to rotate, thereby causing the bolt to rotate upwards or downwards within the screw hole 121. This application uses a bolt as the limiting element 62, which has a simple structure and is easy to adjust, so that even a child can adjust it independently.

[0037] It should be noted that, in this embodiment, when installing the magnet 2 under the vehicle, the magnet 2 is first installed on the mounting base 61. Then, the bolt is placed in the slot 611 through the side opening of the slot 611 and the opening of the notch 612. Finally, the two bolts installed on the mounting base 61 are aligned with the corresponding screw holes 121. The bolts are then rotated with a tool to screw them into the screw holes 121 on the protrusion seat 12 to complete the installation and adjustment.

[0038] In a specific embodiment, the side of the slot 611 opposite to the opening is a limiting sidewall. The limiting sidewall restricts the lateral movement of the bolt to prevent shaking during driving.

[0039] In some embodiments, the mounting base 61 has a mounting groove 614 in the middle, which is a through groove running vertically. The magnet 2 is installed in the mounting groove 614, with the side of the magnet 2 opposite to the track exposed, directly interacting with the iron bars on the track. The bottom of the mounting groove 614 has a limiting step 615, and the top two sides of the mounting groove 614 have elastic blocks 616, each including a hook 6161. The magnet 2 is installed from the top of the mounting groove 614 downwards until the lower end face of the magnet 2 abuts against the limiting step 615, and the upper end face of the magnet 2 abuts against the hook 6161 of the elastic block 616.

[0040] In some embodiments, referring to Figures 3 and 4, the mounting base 61 has an outwardly extending limiting protrusion 617 in the middle, and the bottom surface of the bottom shell 1 has a limiting notch 13 that matches the limiting protrusion 617. The cooperation between the limiting protrusion 617 and the limiting notch 13 can prevent the mounting base 61 from shaking along its length or from disengaging from the limiting member 62, thus ensuring stability during driving.

[0041] The chassis structure of this application is used in toy track racing cars. By designing the magnet 2 as an adjustable structure, it ensures that the toy track racing car can drive stably when passing through complex road conditions.

[0042] In some embodiments, referring to Figures 1 and 2, an upper shell 7 is detachably connected to the bottom shell 1, and the power assembly 3 is disposed within the cavity formed by the bottom shell 1 and the upper shell 7. The power assembly 3 includes a motor 31, a first gear 32 connected to the motor shaft of the motor 31, and a second gear 33 meshing with the first gear 32. The second gear 33 is fixedly mounted on a power shaft 34. Both ends of the power shaft 34 extend out of the shaft holes 14 on both sides of the bottom shell 1 and connect to the rear wheel 6. The shaft holes 14 on both sides of the bottom shell 1 are half-holes with upper openings, allowing the power shaft 34 to be inserted into the shaft holes 14 through the upper openings. The upper shell 7 and the bottom shell 1 cooperate to limit the power shaft 34 within the shaft holes 14. It should be noted that during continuous use of the track racing car, the power assembly 3 is a consumable item. In particular, the second gear 33 and the rear wheel 5 will wear down during long-term use, resulting in reduced playability. In this case, the upper shell 7 can be removed and replaced, improving performance and enhancing playability.

[0043] In a preferred embodiment, referring to Figure 1, the upper shell 1 has downwardly extending connecting portions 71 on both sides, with snap holes 72 on the connecting portions 71. The bottom shell 1 has mounting protrusions 15 on both sides corresponding to the snap holes 71, and the mounting protrusions 15 are barbed. The upper shell 7 and the bottom shell 1 are installed and disassembled by snapping, which is convenient and quick, making it easier for consumers to replace the rear wheel 5, the drive shaft 34, and the second gear 33, indirectly extending the service life of the toy car.

[0044] Specifically, when the snap hole 72 is fastened to the mounting protrusion 15, the inner side of the connecting part 71 is in close contact with the outer side of the bottom shell 1, improving the stability of the connection. Optionally, when the inner side of the connecting part 71 is in close contact with the outer side of the bottom shell 1, a gap is formed between the lower part of the inner side of the connecting part 71 and the bottom shell 1, which allows the user's fingers to enter, so as to quickly remove the upper shell 7 from the bottom shell 1.

[0045] This application also provides a toy track racing car, including the toy car chassis structure of any of the above-mentioned embodiments. The toy track racing car of this application adopts all the technical solutions of all the above-mentioned toy car chassis structure embodiments, and therefore possesses at least all the beneficial effects brought by the technical solutions of the above-mentioned toy car chassis structure embodiments, which will not be elaborated upon here.

[0046] The present application has been further described above with reference to specific embodiments. However, it should be understood that the specific descriptions herein should not be construed as limiting the substance and scope of the present application. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present application.

Claims

1. A toy vehicle chassis structure, characterized by, The utility model provides a toy car bottom structure, which comprises a bottom shell and an upper shell. The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell. The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell. The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell.

2. The toy vehicle chassis of claim 1, wherein, The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell.

3. The toy vehicle chassis of claim 2, wherein, The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell.

4. The toy vehicle chassis of claim 3, wherein, The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell.

5. The toy vehicle chassis of claim 2, wherein, The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell.

6. The toy vehicle chassis of claim 5, wherein, The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell.

7. The toy vehicle chassis of claim 2, wherein, The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell.

8. The toy vehicle chassis of claim 1, wherein, The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell.

9. The toy vehicle chassis of claim 8, wherein, The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell.

10. A toy track racer, characterized in that, The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell. The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell. The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell. The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell. The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell. The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell. The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell. The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell. The utility model discloses a toy car bottom structure which comprises a bottom shell and an upper shell. 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