Telescopic toy car bottom

Abstract

The telescopic toy car bottom comprises a steering box, a driving box and a telescopic device, building block inserting holes and driving holes are formed in the outer side wall of the steering box and the outer side wall of the driving box, the driving holes are used for being externally connected with a steering mechanism or a driving mechanism, and the telescopic device comprises a telescopic shaft and a telescopic groove. The telescopic shaft is arranged on the outer side wall of the steering box, the telescopic groove is formed in the driving box, the telescopic shaft comprises a limiting end, the limiting end is contained in the telescopic groove in a telescopic mode, and the distance between the steering box and the driving box is adjusted through the telescopic device. The distance between the steering box and the driving box is determined by inserting the connecting building blocks into the building block inserting holes in the steering box and the driving box respectively. The utility model aims to provide a telescopic vehicle bottom structure of a building block splicing toy vehicle.

Description

Technical Field

[0001] The utility model relates to the field of toy cars, in particular to a retractable toy car bottom. Background Art

[0002] With the growing demand for children's entertainment and educational toys in modern families, children's cars and building blocks, as multifunctional toys that combine educational, entertainment, and exercise, have become widely available in thousands of households. These products require not only novel designs and diverse play methods, but also good adaptability and durability to meet the interests and exploration needs of children of different ages.

[0003] Traditional building block vehicles fall into two main design categories: one employs an integrated chassis design, characterized by the chassis itself, including key components such as the front steering gearbox, rear drive gearbox, battery compartment, and main control circuit board, being permanently fixed to the chassis, forming an integral, non-detachable whole. While structurally stable, this design has significant limitations. Because different vehicle models have varying length and wheelbase requirements, a fixed chassis design cannot flexibly adapt to diverse vehicle demands. This forces manufacturers to develop custom molds for each wheelbase and length combination, significantly increasing production costs and market response times.

[0004] The other type adopts the design concept of building a vehicle bottom in a building block style, and constructs the vehicle bottom frame through the free combination of building block components, thereby achieving flexible adaptation to the length of different vehicle models. Although this design improves the playability and flexibility of the product, it also brings new problems. First, the structural strength of the building block-type vehicle bottom is often not as good as that of an integrated design. Especially when driving at high speeds or encountering a collision, it is easy to disintegrate due to loose components. Secondly, the electrical connection between the building block components relies on complex wires and dedicated sockets. These connection points not only increase the difficulty and cost of manufacturing, but also reduce the reliability and durability of the product. At the same time, the high-precision socket and plug mold requirements make the entire production process extremely demanding in terms of technology and process level, further pushing up the cost of the product. In addition, the assembly process of the building block-type vehicle bottom is complicated and time-consuming, requiring users to have certain assembly skills and experience, which increases the threshold for use. Utility Model Content

[0005] The purpose of the utility model is to solve the above technical problems and provide a retractable toy car bottom. The present application is to provide a retractable car bottom structure for a building block assembly toy car.

[0006] A retractable toy car bottom comprises a steering box, a drive box and a retractable device, wherein the outer side walls of the steering box and the drive box are provided with a building block plug-in hole and a drive hole, wherein the drive hole is used for externally connecting a steering mechanism or a drive mechanism, the retractable device comprises a retractable shaft and a retractable slot, wherein the retractable shaft is arranged on the outer side wall of the steering box, and the retractable slot is arranged in the drive box, the retractable shaft comprises a limit end, and the limit end is retractably accommodated in the retractable slot, the distance between the steering box and the drive box is adjusted by the retractable device, and the distance between the steering box and the drive box is determined by connecting building blocks to the building block plug-in holes on the steering box and the drive box respectively.

[0007] According to the retractable toy car bottom of the present application, since the distance between the steering box and the drive box can be adjusted by the retractable device, the toy car bottom of the present application can be used in toy cars with different wheelbases, solving the problem of the non-universality of the integrated fixed car bottom; and by providing building block plug-in holes and using the building block plug-in holes to cooperate with connecting building blocks to determine the distance between the steering box and the drive box, the retractable toy car bottom of the present application has the function of self-splicing the car bottom, that is, the retractable toy car bottom of the present application can be used in building block toy cars with different wheelbases, has high universal performance, and compared with the existing toy car bottoms built with building blocks, the retractable toy car bottom of the present application has higher structural strength after splicing and forming, and the vehicle speed can be increased by 1 to 1.5 times compared with the toy car spliced with simple building blocks, and even if it hits an obstacle, the frame is not likely to disintegrate.

[0008] The steering box further includes a first housing, a steering motor, and a first reduction mechanism. The steering motor and the first reduction mechanism are mounted within the first housing, and the steering motor is externally connected to the steering mechanism via the first reduction mechanism. The steering motor in the steering box is used to steer the wheels of the toy vehicle. The steering motor decelerates and increases torque via the first reduction mechanism, and then is externally connected to the steering structure to drive the wheels in a steering direction.

[0009] Furthermore, the first housing includes a first upper housing and a first lower housing, and the telescopic shaft is divided into two parts, each of which is integrally molded with the first upper housing and the first lower housing, and then assembled with the first upper housing and the first lower housing to form the telescopic shaft. Dividing the first housing into two parts facilitates the installation of internal components, and dividing the telescopic shaft into two parts, which are simultaneously integrally molded and then assembled with the first upper housing and the first lower housing, enhances the structural strength of the telescopic shaft.

[0010] Furthermore, the drive box includes a battery, a second box body, a drive motor, and a second reduction mechanism. The drive motor and the second reduction mechanism are mounted within the second box body. The drive motor is connected to an external drive mechanism via the second reduction mechanism, and the battery is electrically connected to the drive motor. The drive motor in the drive box is used to drive the wheels of the toy vehicle. After the drive motor is decelerated and torque-increased by the second reduction mechanism, it is connected to the external drive mechanism to drive the wheels in forward or reverse rotation, thereby driving the toy vehicle forward or backward.

[0011] Furthermore, the device further includes a battery, which is disposed in the steering box and / or the drive box, and the telescopic device is further provided with a wiring structure for connecting the battery of the steering box and the drive box, so as to facilitate powering the components in the steering box and the drive box through the battery.

[0012] Furthermore, a circuit board is included, which is arranged in the steering box and / or the drive box, and the wiring structure is also used for wiring of the circuit board, so as to facilitate the transmission of control signals to the battery and the components in the steering box and the drive box through the circuit board.

[0013] Furthermore, the routing structure includes a first notch and a second notch, the interior of the telescopic shaft is hollow, and the telescopic shaft is directly connected to the inner cavity of the steering box. The first notch is set on the limit end, and the second notch is set on the wall of the telescopic groove. The telescopic groove is connected to the inner cavity of the drive box through the second notch, and the positions of the first notch and the second notch are relative.

[0014] Furthermore, the wiring structure further includes a wire clamping plate, which is arranged in the telescopic shaft. The connection lines of the parts in the steering box and the drive box can be clamped in the wire clamping plate to prevent these connection lines from affecting the extension and retraction of the telescopic device.

[0015] Furthermore, the telescopic shaft is T-shaped, and the telescopic shaft also includes a telescopic end, one side of the telescopic end is connected to the outer wall of the steering box, and the other side is connected to the limit end; a telescopic opening is provided on one side of the telescopic slot, and the length of the telescopic opening is smaller than the length of the telescopic slot, so that the limit end is restricted in the telescopic slot, and the telescopic end can be telescoped in the telescopic opening.

[0016] Furthermore, the outer sidewalls of the steering box and the drive box each include two end faces and multiple side faces. The telescopic shaft is provided on one end face of the steering box, and the telescopic slot is provided on the inner side of one end face of the drive box. Both the side face and the other end face are provided with building block insertion holes. One side face of the steering box has at least one side face of the drive box in the same plane as the side face of the drive box. The drive hole is provided on the other end face. This facilitates connecting building blocks to connect the steering box and the drive box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a three-dimensional diagram of the retractable toy car bottom of the present invention.

[0018] Figure 2 This is an exploded view of the retractable toy car bottom of the present invention.

[0019] Figure 3 This is a three-dimensional diagram of the retractable toy car bottom of the present invention in an extended state.

[0020] Figure 4 This is a three-dimensional view of the retractable toy car bottom of the utility model in the extended state with the upper box body removed.

[0021] Figure 5 It is a three-dimensional view of the upper box body of the retractable toy car bottom of the present utility model.

[0022] Figure 6 This is a three-dimensional view of the retractable toy car bottom of the utility model with the upper box body removed.

[0023] Figure 7 It is a three-dimensional diagram of the steering box of the present invention.

[0024] Figure 8 It is a front view of the steering box of the present invention.

[0025] Figure 9 It is a front view of the drive box of the present utility model. DETAILED DESCRIPTION

[0026] The utility model is described with reference to the accompanying drawings, which illustrate a retractable toy car bottom.

[0027] like Figures 1 to 9The telescopic toy car bottom shown in the figure includes a steering box 1, a drive box 2 and a telescopic device 3. The distance between the steering box 1 and the drive box 2 is adjusted by the telescopic device 3. Since the distance between the steering box 1 and the drive box 2 can be adjusted by the telescopic device 3, the toy car bottom of the present application can be used in toy cars with different wheelbases, which solves the problem that the integrated fixed car bottom is not universal. The outer walls of the steering box 1 and the drive box 2 are provided with a building block plug-in hole 4 and a drive hole 5. The drive hole 5 is used for an external steering mechanism or a drive mechanism. The telescopic device 3 has a telescopic shaft 31 and a telescopic slot 32. The telescopic shaft 31 is arranged on the outer wall of the steering box 1, and the telescopic slot 32 is arranged in the drive box 2. The telescopic shaft 31 includes a limit end 312, and the limit end 312 can be telescopically accommodated in the telescopic slot 32. The telescopic device 3 adjusts the distance between the steering box 1 and the drive box 2, and the distance between the steering box 1 and the drive box 2 is determined by connecting the building blocks to the building block plugging holes 4 on the steering box 1 and the drive box 2 respectively; and by opening the building block plugging holes 4 and using the building block plugging holes 4 to cooperate with the connecting building blocks to determine the distance between the steering box 1 and the drive box 2, the telescopic toy car bottom of the present application has the function of autonomously splicing the car bottom, that is, the telescopic toy car bottom of the present application can be used in toy cars with building blocks of different wheelbases, has high universal performance, and compared with the existing toy car bottom built with building blocks, the telescopic toy car bottom of the present application has higher structural strength after splicing and forming, and the speed of the vehicle can be increased by 1 to 1.5 times compared with the speed of a toy car spliced with simple building blocks, and even if it hits an obstacle, it is not easy for the frame to disintegrate.

[0028] like Figure 2 As shown, the steering box 1 includes a first box body, a steering motor 13 and a first reduction mechanism 14. The steering motor 13 and the first reduction mechanism 14 are installed in the first box body. The steering motor 13 is connected to the steering mechanism through the first reduction mechanism 14. The steering motor 13 in the steering box 1 is used for steering the wheels of the toy car. The steering motor 13 is decelerated and torque-increased by the first reduction mechanism 14 and then connected to the external steering structure to drive the wheels to steer.

[0029] The first box body includes a first upper box body 11 and a first lower box body 12, and the telescopic shaft 31 is divided into two parts. The two parts are respectively integrally formed with the first upper box body 11 and the first lower box body 12, and the telescopic shaft 31 is formed as the first upper box body 11 and the first lower box body 12 are spliced together. The first box body is divided into two parts, the first upper box body 11 and the first lower box body 12. The first upper box body 11 and the first lower box body 12 are fixed with screws, and an installation space is formed between the first upper box body 11 and the first lower box body 12. The installation space can facilitate the installation of internal parts. The telescopic shaft 31 is also divided into two parts, and they are respectively integrally formed at the same time and then spliced together with the first upper box body 11 and the first lower box body 12, so that the structural strength of the telescopic shaft 31 is higher.

[0030] The steering motor 13 and the first reduction mechanism 14 are assembled into a housing and then installed in the installation space of the first box body. The first reduction mechanism 14 is preferably a gear reduction mechanism, such as Figure 8 As shown, the output end of the gear reduction mechanism corresponds to the position of the driving hole 5 , which facilitates the external steering mechanism to be connected to the output end of the gear reduction mechanism through the driving hole 5 .

[0031] like Figure 2 As shown, the drive box 2 includes a battery 6, a second box body, a drive motor 23 and a second reduction mechanism 24. The drive motor 23 and the second reduction mechanism 24 are installed in the second box body. The drive motor 23 is connected to an external drive mechanism through the second reduction mechanism 24. The battery 6 is electrically connected to the drive motor 23. The drive motor 23 in the drive box 2 is used to drive the wheels of the toy car. After the drive motor 23 is decelerated and torque-increased through the second reduction mechanism 24, it is connected to an external drive mechanism to drive the wheels to rotate forward or reverse, thereby driving the toy car forward or backward.

[0032] The second box body includes a second upper box body 21 and a second lower box body 22. The second upper box body 21 and the second lower box body 22 are connected and assembled by screws. An installation space and a telescopic slot 32 are formed in the inner cavity of the second box body. The drive motor 23 and the second reduction mechanism 24 are installed in the installation space.

[0033] The driving motor 23 and the second reduction mechanism 24 of the present application are assembled with the same housing and installed together in the installation space of the second box body. The second reduction mechanism 24 is preferably a gear reduction mechanism, such as Figure 9 As shown, the output end of the gear reduction mechanism corresponds to the position of the driving hole 5 , so that an external driving mechanism can be connected to the output end of the gear reduction mechanism through the driving hole 5 .

[0034] like Figure 2As shown, it also includes a battery 6, which is arranged in the steering box 1 and / or the drive box 2. The telescopic device 3 is also provided with a wiring structure for the battery 6 connecting the steering box 1 and the drive box 2, so as to facilitate powering the parts in the steering box 1 and the drive box 2 through the battery 6.

[0035] It also includes a circuit board, which is arranged in the steering box 1 and / or the drive box 2. The routing structure is also used for routing the circuit board, so as to facilitate the transmission of control signals to the battery 6 and the parts in the steering box 1 and the drive box 2 through the circuit board.

[0036] In the embodiment shown in the present application, it is preferred that both the battery 6 and the circuit board are installed in the installation space of the drive box 2. The steering motor 13 of the toy car is larger and heavier than the drive motor 23, so that the drive box 2 has more space to install the battery 6 and the circuit board, and the first box body and the second box body can maintain weight balance. Figure 2 As shown, the circuit board includes a charging board 8 and a main control board 7. The driving box 2 is provided with a charging port, the charging port is connected to an external charging circuit, the charging board 8 is electrically connected to the charging port and the battery 6, and the charging and discharging of the battery 6 is controlled by the charging board 8; the main control board 7 is used to control the operation of the battery 6, the charging board 8, the driving motor 23 and the steering motor 13.

[0037] like Figures 1 to 7 As shown, the wiring structure includes a first notch 33 and a second notch 34. The interior of the telescopic shaft 31 is hollow, and the telescopic shaft 31 is directly connected to the inner cavity of the steering box 1. The first notch 33 is set on the limit end 312, and the second notch 34 is set on the wall of the telescopic groove 32. The telescopic groove 32 is connected to the inner cavity of the drive box 2 through the second notch 34. The positions of the first notch 33 and the second notch 34 are relative.

[0038] like Figure 4 As shown, the wiring structure also includes a wire clamping plate 35, which is arranged in the telescopic shaft 31. The connection lines of the parts in the steering box 1 and the drive box 2 can be clamped in the wire clamping plate 35 to prevent these connection lines from affecting the extension and retraction of the telescopic device 3.

[0039] like Figures 1 to 7 As shown, the telescopic shaft 31 is T-shaped, and the telescopic shaft 31 also includes a telescopic end 311, one side of the telescopic end 311 is connected to the outer wall of the steering box 1, and the other side is connected to the limit end 312; a telescopic opening is provided on one side of the telescopic slot 32, and the length of the telescopic opening is smaller than the length of the telescopic slot 32, so that the limit end 312 is restricted in the telescopic slot 32, and the telescopic end 311 can be telescoped in the telescopic opening.

[0040] like Figures 1 to 7As shown, the outer side walls of the steering box 1 and the drive box 2 respectively include two end faces and multiple side faces, the telescopic shaft 31 is arranged on one end face of the steering box 1, and the telescopic groove 32 is arranged on the inner side of one end face of the drive box 2; building block plug-in holes 4 are provided on the side face and the other end face, and one side face of the steering box 1 has at least one side face of the drive box 2 in the same plane with it; the drive hole 5 is provided on the other end face.

[0041] like Figures 1 to 7 As shown, the steering box 1 and the driving box 2 of the present application are square, and the square has four sides. The four sides of the steering box 1 and the driving box 2 correspond one to one, and the corresponding sides are on the same plane, so it is convenient to connect the steering box 1 and the driving box 2 with building blocks.

[0042] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and any modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience of description only and do not constitute any limitation to the present invention.

Claims

1. A retractable toy car bottom, characterized in that: It includes a steering box, a drive box and a telescopic device, wherein the outer walls of the steering box and the drive box are provided with a building block plug-in hole and a drive hole, the drive hole is used for an external steering mechanism or a drive mechanism, the telescopic device has a telescopic shaft and a telescopic slot, the telescopic shaft is arranged on the outer wall of the steering box, the telescopic slot is arranged in the drive box, the telescopic shaft includes a limit end, and the limit end can be telescopically accommodated in the telescopic slot, the distance between the steering box and the drive box is adjusted by the telescopic device, and the distance between the steering box and the drive box is determined by connecting the building blocks to the building block plug-in holes on the steering box and the drive box respectively.

2. The retractable toy car bottom according to claim 1, characterized in that: The steering box includes a first box body, a steering motor and a first reduction mechanism. The steering motor and the first reduction mechanism are installed in the first box body, and the steering motor is externally connected to the steering mechanism through the first reduction mechanism.

3. The retractable toy car bottom according to claim 2, characterized in that: The first box body includes a first upper box body and a first lower box body. The telescopic shaft is divided into two parts. The two parts are respectively integrally formed with the first upper box body and the first lower box body, and are spliced together with the first upper box body and the first lower box body to form the telescopic shaft.

4. The retractable toy car bottom according to claim 1, characterized in that: The drive box includes a battery, a second box body, a drive motor and a second reduction mechanism. The drive motor and the second reduction mechanism are installed in the second box body. The drive motor is connected to the external drive mechanism through the second reduction mechanism. The battery is electrically connected to the drive motor.

5. The retractable toy car bottom according to claim 1, characterized in that: It also includes a battery, which is arranged in the steering box and / or the drive box. The telescopic device is also provided with a wiring structure for the battery connecting the steering box and the drive box.

6. The retractable toy car bottom according to claim 5, characterized in that: It also includes a circuit board, which is arranged in the steering box and / or the driving box, and the wiring structure is also used for wiring of the circuit board.

7. The retractable toy car bottom according to claim 5 or 6, characterized in that: The wiring structure includes a first notch and a second notch. The interior of the telescopic shaft is hollow and the telescopic shaft is directly connected to the inner cavity of the steering box. The first notch is set on the limiting end, and the second notch is set on the wall of the telescopic groove. The telescopic groove is connected to the inner cavity of the drive box through the second notch. The positions of the first notch and the second notch are relative.

8. The retractable toy car bottom according to claim 5 or 6, characterized in that: The wiring structure further includes a wire clamping plate, which is arranged in the telescopic shaft.

9. The retractable toy car bottom according to claim 1, characterized in that: The telescopic shaft is T-shaped and further includes a telescopic end, one side of the telescopic end is connected to the outer wall of the steering box, and the other side is connected to the limit end; a telescopic opening is provided on one side of the telescopic slot, the length of the telescopic opening is smaller than the length of the telescopic slot, so that the limit end is restricted in the telescopic slot, and the telescopic end can be telescoped in the telescopic opening.

10. The retractable toy car bottom according to claim 1, characterized in that: The outer side walls of the steering box and the drive box respectively include two end faces and multiple side faces, the telescopic shaft is arranged on one end face of the steering box, and the telescopic groove is arranged on the inner side of one end face of the drive box; building block plug-in holes are provided on both the side face and the other end face, and one side face of the steering box has at least one side face of the drive box in the same plane with it; the drive hole is arranged on the other end face.

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