Cross-country toy car

Abstract

The utility model relates to a cross-country toy car which comprises a baby carriage frame, a front wheel assembly, a rear wheel assembly, a driving mechanism and a steering mechanism used for controlling steering of a baby carriage. The front wheel assembly and the rear wheel assembly are arranged at the bottom of the baby carriage frame; the front wheel assembly comprises a left front wheel and a right front wheel which are arranged on the left side and the right side of the front portion of the baby carriage frame respectively. The rear wheel assembly comprises a left rear wheel and a right rear wheel which are arranged on the left side and the right side of the rear portion of the baby carriage frame respectively. The chassis is simple in structure, and the flexibility of a vehicle body in the advancing process is achieved through the reasonable structural design of front-back double-drive transmission, steering and the like of the chassis.

Description

Technical Field

[0001] This utility model belongs to the field of children's vehicle technology, and in particular relates to an off-road toy vehicle. Background Technology

[0002] The toy and children's vehicle market is developing rapidly with the continuous improvement of people's living standards. Toy cars account for a large proportion of the toy market, but the types of toy cars on the market are still relatively limited, especially for special vehicles, which cannot meet children's diverse needs for toy cars.

[0003] Currently available off-road toy cars on the market are prone to bumps during use, causing severe vibrations in the main body of the car and making it susceptible to damage. In addition, existing off-road toy cars have complex transmission structures, high failure rates, and insufficient maneuverability. When encountering uneven terrain, the car's passability is poor, reducing the enjoyment of playing.

[0004] Therefore, it is necessary to improve upon the above-mentioned issues. Utility Model Content

[0005] The purpose of this utility model is to provide an off-road toy vehicle with a simple structure, reasonable design, enhanced driving stability, and good steering performance.

[0006] To achieve the above objectives, the technical solution adopted by this utility model patent is: an off-road toy car, including a children's frame, a front wheel assembly, a rear wheel assembly, a drive mechanism, and a steering mechanism for controlling the steering of the children's car; the front wheel assembly and the rear wheel assembly are located at the bottom of the children's frame; the front wheel assembly includes a left front wheel and a right front wheel respectively located on the left and right sides of the front of the children's frame; the rear wheel assembly includes a left rear wheel and a right rear wheel respectively located on the left and right sides of the rear of the children's frame; the steering mechanism is connected to the front wheel assembly; the drive mechanism includes a front power unit and... The rear power unit is used to drive the front wheel assembly to rotate, and the rear power unit is used to drive the rear wheel assembly to rotate. A front shock absorber is provided between the child stroller frame and the steering mechanism. A rear shock absorber is provided between the child stroller frame and the rear power unit. There are two rear power units, which are respectively mounted on both ends of the rotating shaft to drive the left and right rear wheels. The rear power unit includes a rear drive motor and a rear power reducer. The rear drive motor is mounted on the rear power reducer, and the rotating shaft passes through the rear power reducer. A rear axle shock absorber housing is mounted on the rotating shaft. The rear axle shock absorber housing is located at the bottom of the child stroller frame.

[0007] As a preferred embodiment of this utility model, two rear shock absorption mechanisms are provided, located between the rear axle shock absorber housing and the stroller frame.

[0008] As a preferred embodiment of the present invention, the rear shock absorption mechanism includes a shock absorption sleeve, a guide groove is formed at the bottom of the shock absorption sleeve, the shock absorption sleeve is snapped onto the rotating shaft through the guide groove, a shock absorption groove is formed at the top of the shock absorption sleeve, a rear shock absorption spring is assembled in the shock absorption groove, one end of the rear shock absorption spring is located in the shock absorption groove, and the other end passes through the rear axle shock absorber housing and abuts against the bottom of the stroller frame.

[0009] As a preferred embodiment of this utility model, the bottom of the rotating shaft is equipped with a rear motor cover, which is detachably connected to the rear axle shock absorber housing.

[0010] As a preferred embodiment of this utility model, two front power units are provided, respectively assembled at both ends of the steering mechanism, and the front power units are used to drive the left front wheel and the right front wheel.

[0011] As a preferred embodiment of the present invention, the front power unit includes a front drive motor and a front power reducer; the front drive motor is mounted on the front power reducer.

[0012] In a preferred embodiment of this utility model, the steering mechanism includes a steering rod and a steering motor for driving the steering rod to rotate; the top of the steering rod is connected to a steering wheel; the bottom of the steering rod is connected to a steering assembly, and the two ends of the steering assembly are respectively connected to the left front wheel and the right front wheel.

[0013] As a preferred embodiment of the present invention, the steering assembly includes a positioning square tube, wheel axles rotatably connected to both ends of the positioning square tube, a rocker arm vertically fixed to the wheel axle, a steering plate hinged to the two rocker arms, a left front wheel and a right front wheel rotatably connected to the wheel axle, a positioning plate fixed in the middle of the steering plate, a positioning through hole formed on the positioning plate, and the end of the steering rod passing through the positioning through hole.

[0014] As a preferred embodiment of this utility model, two front shock absorption mechanisms are provided and assembled between the positioning square tube and the stroller frame.

[0015] As a preferred embodiment of this utility model, the front shock absorption mechanism includes a front shock absorber seat, a shock absorber piston cylinder, a piston rod, and a front shock absorber spring; one end of the piston rod is assembled inside the shock absorber piston cylinder and extends and retracts inside the shock absorber piston cylinder, the other end of the piston rod is connected to the front shock absorber seat, the front shock absorber seat is fixed on the positioning square tube, the front shock absorber spring is sleeved on the shock absorber piston cylinder and the piston rod, and both ends of the front shock absorber spring are respectively abutted against the bottom of the shock absorber piston cylinder and the end of the front shock absorber seat; the top of the shock absorber piston cylinder is hinged to the stroller frame.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model has a simple structure. Through its reasonable chassis design with front and rear dual-drive transmission and steering, it achieves the flexibility of the vehicle body during movement. By setting up a front power unit and a rear power unit, and by installing independent drive motors on the left front wheel, right front wheel, left rear wheel and right rear wheel, and the four drive motors are independently controlled by the control system, the speed of the four tires is controlled, thereby achieving four-wheel drive. Compared with cars driven by a single motor, it can better adapt to complex terrain environments. The front and rear shock absorption mechanisms work together with the children's vehicle frame to enhance the stability of the children's vehicle body during driving and its obstacle avoidance ability.

[0018] 2. This utility model is ingeniously designed. By using the cooperation between the wheel axle and the rocker arm and the steering plate, the steering of the left and right front wheels is achieved. This simplifies the structure, reduces the processing requirements of the parts, reduces material and processing costs, and improves the reliability of the steering structure. The ingeniously designed wheel axle also simplifies the structure. This not only reduces the number of transmission parts, making the structure simpler and the drive more direct, but also improves the shock absorption effect.

[0019] 3. In this embodiment, during use, when the front wheel assembly and the rear wheel assembly pass over uneven ground, the vibration is transmitted to the stroller frame. The front and rear shock-absorbing springs then reduce the vibration generated by the stroller. At the same time, the front and rear shock-absorbing springs are compressed to absorb energy and reduce the impact with the ground, further slowing down the vibration and providing stable support and shock absorption. The front and rear shock-absorbing springs can absorb the vibration, and the shock-absorbing seat, shock-absorbing piston cylinder, and piston rod facilitate the shock absorption of the stroller frame during movement. Therefore, when the stroller passes over bumps or obstacles, the stroller will reduce the vibration amplitude, making the stroller ride more smoothly and providing better comfort and safety for the child. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the off-road toy vehicle according to an embodiment of the present invention;

[0021] Figure 2 This is a bottom view of an off-road toy vehicle according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the rear wheel assembly and rear shock absorber mechanism in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the stroller frame and rear shock absorption mechanism in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the steering mechanism, front wheel assembly, and front shock absorber mechanism according to an embodiment of the present utility model;

[0025] Figure 6This is a schematic diagram of the steering mechanism and front wheel assembly according to an embodiment of the present invention;

[0026] Explanation of reference numerals in the attached drawings: 1. Child stroller frame; 2. Front wheel assembly; 3. Rear wheel assembly; 4. Steering mechanism; 6. Front power unit; 7. Rear power unit; 8. Front shock absorber mechanism; 9. Rear shock absorber mechanism; 10. Steering assembly; 11. Positioning square tube; 12. Wheel axle; 13. Sway bar; 14. Steering plate; 15. Positioning plate; 16. Positioning through hole; 21. Left front wheel; 22. Right front wheel; 31. Left rear wheel; 32. Right rear wheel; 41. Steering rod; 42. Steering motor; 43. Steering wheel; 61. Front drive motor; 62. Front power reducer; 70. Rotary shaft; 71. Rear drive motor; 72. Rear power reducer; 73. Rear axle shock absorber housing; 74. Rear motor cover; 80. Shock absorber piston cylinder; 81. Piston rod; 82. Front shock absorber spring; 83. Front shock absorber seat; 90. Shock absorber sleeve; 91. Shock absorber groove; 92. Rear shock absorber spring; 93. Guide groove. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example

[0030] like Figure 1 , Figure 2 and Figure 3As shown, the off-road toy car includes a frame 1, a front wheel assembly 2, a rear wheel assembly 3, a drive mechanism, and a steering mechanism 4 for controlling the steering of the toy car. The front wheel assembly 2 and the rear wheel assembly 3 are located at the bottom of the frame 1. The front wheel assembly 2 includes a left front wheel 21 and a right front wheel 22 respectively located on the left and right sides of the front of the frame 1. The rear wheel assembly 3 includes a left rear wheel 31 and a right rear wheel 32 respectively located on the left and right sides of the rear of the frame 1. The steering mechanism 4 is connected to the front wheel assembly 2. The drive mechanism includes a front power unit 6 and a rear power unit 7, the front power unit 6 being used to drive the front of the toy car. Wheel assembly 2 rotates, and rear power unit 7 drives rear wheel assembly 3 to rotate; front shock absorption mechanism 8 is provided between child frame 1 and steering mechanism 4; rear shock absorption mechanism 9 is provided between child frame 1 and rear power unit 7; two rear power units 7 are provided, respectively mounted on both ends of rotating shaft 70, for driving left rear wheel 31 and right rear wheel 32 to move; rear power unit 7 includes rear drive motor 71 and rear power reducer 72; rear drive motor 71 is mounted on rear power reducer 72, and rotating shaft 70 passes through rear power reducer 72; rear axle shock absorber housing 73 is mounted on rotating shaft 70; rear axle shock absorber housing 73 is located at the bottom of child frame 1.

[0031] The off-road toy car of this invention achieves agility during movement through its rationally designed chassis with front and rear dual-drive transmission and steering structure. By setting up a front power unit 6 and a rear power unit 7, and by installing independent drive motors on the left front wheel 21, right front wheel 22, left rear wheel 31, and right rear wheel 32, and by controlling the speed of the four tires independently through the control system, four-wheel drive is achieved. Compared with cars driven by a single motor, it can better adapt to complex terrain environments. The front shock absorption mechanism 8 and the rear shock absorption mechanism 9 work together with the children's car frame 1 to enhance the stability of the children's car body during movement and its obstacle avoidance ability.

[0032] The off-road toy car designed in this utility model has a structure of four front left wheels 21, front right wheels 22, rear left wheels 31 and rear right wheels 32, combined with a four-wheel drive system and a four-shock absorption system, which enables it to adapt to changes in road conditions and still drive normally.

[0033] This utility model features four drive wheels: the left front wheel 21, the right front wheel 22, the left rear wheel 31, and the right rear wheel 32. These provide strong driving force and road adaptability, especially on slippery surfaces such as those exposed to rain or snow in winter, resulting in better vehicle stability and reducing the risk of skidding and loss of control. This enhances safety. Furthermore, the four drive wheels improve the vehicle's traction and load-bearing capacity, while also enhancing playability and the overall experience for children.

[0034] like Figures 3-4As shown, there are two rear shock absorber mechanisms 9, located between the rear axle shock absorber housing 73 and the stroller frame 1; the above scheme enhances driving stability and thus ensures safe use.

[0035] Specifically, the rear shock absorption mechanism 9 includes a shock absorption sleeve 90, a guide groove 93 is formed at the bottom of the shock absorption sleeve 90, the shock absorption sleeve 90 is engaged with the rotating shaft 70 through the guide groove 93, a shock absorption groove 91 is formed at the top of the shock absorption sleeve 90, a rear shock absorption spring 92 is installed in the shock absorption groove 91, one end of the rear shock absorption spring 92 is located in the shock absorption groove 91, and the other end passes through the rear axle shock absorber housing 73 and abuts against the bottom of the stroller frame 1.

[0036] The bottom of the pivot 70 is equipped with a rear motor cover 74, which is detachably connected to the rear axle shock absorber housing 73. By setting the rear motor cover 74, the pivot 70 and the rear drive motor 71 can be effectively protected. It can buffer and isolate the impact force generated when the bottom of the vehicle is hit, and prevent the vehicle from touching the pivot 70 and the rear drive motor 71 after a collision, thus affecting the use of the stroller. Moreover, the detachable connection between the rear motor cover 74 and the rear axle shock absorber housing 73 makes it convenient to repair and replace the rear motor cover 74, thereby better protecting the pivot 70 and the rear drive motor 71 and extending the service life of the stroller.

[0037] like Figure 5 — Figure 6 As shown, there are two front power units 6, which are respectively mounted at both ends of the steering mechanism 4. The front power units 6 are used to drive the left front wheel 21 and the right front wheel 22. The front power unit 6 includes a front drive motor 61 and a front power reducer 62; the front drive motor 61 is mounted on the front power reducer 62.

[0038] like Figures 5-6 As shown, the steering mechanism 4 includes a steering rod 41 and a steering motor 42 for driving the steering rod 41 to rotate; the top of the steering rod 41 is connected to a steering wheel 43; the bottom of the steering rod 41 is connected to a steering assembly 10, and the two ends of the steering assembly 10 are respectively connected to the left front wheel 21 and the right front wheel 22.

[0039] The steering motor 42 provides power for the steering operation of the left front wheel 21 and right front wheel 22 of the off-road toy car of this application. The steering motor 42 works in transmission cooperation with the steering assembly 10 to drive the steering assembly 10 to move along the width direction of the vehicle, so as to adjust the forward direction of the left front wheel 21 and right front wheel 22.

[0040] Specifically, the steering assembly 10 includes a positioning square tube 11, wheel axles 12 rotatably connected to both ends of the positioning square tube 11, a rocker arm 13 vertically fixed to the wheel axle 12, a steering plate 14 hinged to the two rocker arms 13, a left front wheel 21 and a right front wheel 22 rotatably connected to the wheel axle 12, a positioning plate 15 fixed in the middle of the steering plate 14, a positioning through hole 16 formed on the positioning plate 15, and the end of the steering rod 41 passing through the positioning through hole 16.

[0041] This invention achieves steering of the left front wheel 21 and right front wheel 22 through the cooperation between the wheel axle 12, the rocker arm 13, and the steering plate 14. This simplifies the structure, reduces the processing requirements of parts, lowers material and processing costs, and improves the reliability of the steering structure. The cleverly designed wheel axle 12 also results in a simple structure. This not only reduces transmission components, making the structure more concise and the drive more direct, but also improves shock absorption.

[0042] like Figure 1 and Figure 5 As shown, there are two front shock absorption mechanisms 8, which are installed between the positioning square tube 11 and the stroller frame 1; the above scheme enhances driving stability and thus ensures safe use.

[0043] Specifically, the front shock absorber mechanism 8 includes a front shock absorber seat 83, a shock absorber piston cylinder 80, a piston rod 81, and a front shock absorber spring 82; one end of the piston rod 81 is fitted inside the shock absorber piston cylinder 80 and extends and retracts inside the shock absorber piston cylinder 80, and the other end of the piston rod 81 is connected to the front shock absorber seat 83, which is fixed on the positioning square tube 11; the front shock absorber spring 82 is sleeved on the shock absorber piston cylinder 80 and the piston rod 81, and both ends of the front shock absorber spring 82 are respectively in contact with the bottom of the shock absorber piston cylinder 80 and the end of the front shock absorber seat 83; the top of the shock absorber piston cylinder 80 is hinged to the stroller frame 1.

[0044] During use, when the front wheel assembly 2 and the rear wheel assembly 3 pass over uneven ground, the vibration is transmitted to the stroller frame 1. The vibration generated by the stroller is then reduced by the front shock absorber spring 82 and the rear shock absorber spring 92. At the same time, the front shock absorber spring 82 and the rear shock absorber spring 92 are compressed to absorb energy and reduce the impact with the ground, further reducing vibration and providing stable support and shock absorption. The front shock absorber spring 82 and the rear shock absorber spring 92 can absorb the vibration. The shock absorber seat 83, shock absorber piston cylinder 80, and piston rod 81 facilitate the shock absorption of the stroller frame 1 during movement. Therefore, when the stroller passes over bumps or obstacles, the amplitude of vibration is reduced, making the stroller ride more smoothly and providing better comfort and safety for the child.

[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0046] Although this article uses numerous reference numerals from the accompanying drawings—such as: 1. Child stroller frame; 2. Front wheel assembly; 3. Rear wheel assembly; 4. Steering mechanism; 6. Front power unit; 7. Rear power unit; 8. Front shock absorber mechanism; 9. Rear shock absorber mechanism; 10. Steering assembly; 11. Positioning square tube; 12. Wheel axle; 13. Sway bar; 14. Steering plate; 15. Positioning plate; 16. Positioning through hole; 21. Left front wheel; 22. Right front wheel; 31. Left rear wheel; 32. Right rear wheel; 41. Steering rod; 42. Steering motor; 43. Steering wheel; 61. Front drive motor; 62. Front power reducer; 70. Rotary shaft; 71. Rear drive motor; 72. Rear power reducer; 73. Rear axle shock absorber housing; 74. Rear motor cover; 80. Shock absorber piston cylinder; 81. Piston rod; 82. Front shock absorber spring; 83. Front shock absorber seat; 90. Shock absorber sleeve; 91. Shock absorber groove; 92. Rear shock absorber spring; 93. Guide groove, etc.—the possibility of using other terms cannot be excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would be contrary to the spirit of this utility model.

Claims

1. An off-road toy car, characterized by: The stroller includes a frame (1), a front wheel assembly (2), a rear wheel assembly (3), a drive mechanism, and a steering mechanism (4) for controlling the stroller's steering. The front wheel assembly (2) and the rear wheel assembly (3) are located at the bottom of the stroller frame (1). The front wheel assembly (2) includes a left front wheel (21) and a right front wheel (22) respectively located on the left and right sides of the front of the stroller frame (1). The rear wheel assembly (3) includes a left rear wheel (31) and a right rear wheel (32) respectively located on the left and right sides of the rear of the stroller frame (1). The steering mechanism (4) is connected to the front wheel assembly (2). The drive mechanism includes a front power unit (6) and a rear power unit (7). The front power unit (6) is used to drive the front wheel assembly (2) to rotate. The rear power unit (7) is used to drive the rear wheel assembly (3) to rotate; a front shock absorber (8) is provided between the stroller frame (1) and the steering mechanism (4); a rear shock absorber (9) is provided between the stroller frame (1) and the rear power unit (7); two rear power units (7) are provided, respectively mounted on both ends of the rotating shaft (70), for driving the left rear wheel (31) and the right rear wheel (32) to move; the rear power unit (7) includes a rear drive motor (71) and a rear power reducer (72); the rear drive motor (71) is mounted on the rear power reducer (72), and the rotating shaft (70) passes through the rear power reducer (72); a rear axle shock absorber housing (73) is mounted on the rotating shaft (70); the rear axle shock absorber housing (73) is located at the bottom of the stroller frame (1).

2. The off-road toy vehicle according to claim 1, characterized in that: The rear shock absorber (9) has two parts, located between the rear axle shock absorber housing (73) and the stroller frame (1).

3. The off-road toy vehicle according to claim 2, characterized in that: The rear shock absorption mechanism (9) includes a shock absorption sleeve (90), a guide groove (93) is formed at the bottom of the shock absorption sleeve (90), the shock absorption sleeve (90) is snapped onto the rotating shaft (70) through the guide groove (93), a shock absorption groove (91) is formed at the top of the shock absorption sleeve (90), a rear shock absorption spring (92) is installed in the shock absorption groove (91), one end of the rear shock absorption spring (92) is located in the shock absorption groove (91), and the other end passes through the rear axle shock absorber housing (73) and abuts against the bottom of the stroller frame (1).

4. The off-road toy vehicle according to claim 1, characterized in that: The bottom of the rotating shaft (70) is equipped with a rear motor cover (74), which is detachably connected to the rear axle shock absorber housing (73).

5. The off-road toy vehicle according to claim 1, characterized in that: Two front power units (6) are provided, respectively mounted at both ends of the steering mechanism (4). The front power units (6) are used to drive the left front wheel (21) and the right front wheel (22) to move.

6. The off-road toy vehicle according to claim 5, characterized in that: The front power unit (6) includes a front drive motor (61) and a front power reducer (62); the front drive motor (61) is mounted on the front power reducer (62).

7. The off-road toy vehicle according to claim 1, characterized in that: The steering mechanism (4) includes a steering rod (41) and a steering motor (42) for driving the steering rod (41) to rotate; the top of the steering rod (41) is connected to a steering wheel (43); the bottom of the steering rod (41) is connected to a steering assembly (10), and the two ends of the steering assembly (10) are connected to the left front wheel (21) and the right front wheel (22) respectively.

8. The off-road toy vehicle according to claim 7, characterized in that: The steering assembly (10) includes a positioning square tube (11), wheel axles (12) rotatably connected to both ends of the positioning square tube (11), a rocker arm (13) vertically fixed to the wheel axle (12), a steering plate (14) hinged to the two rocker arms (13), a left front wheel (21) and a right front wheel (22) rotatably connected to the wheel axle (12), a positioning plate (15) fixed in the middle of the steering plate (14), a positioning through hole (16) formed on the positioning plate (15), and the end of the steering rod (41) passing through the positioning through hole (16).

9. The off-road toy vehicle according to claim 1, characterized in that: Two front shock absorption mechanisms (8) are provided, which are assembled between the positioning square tube (11) and the stroller frame (1).

10. The off-road toy vehicle according to claim 9, characterized in that: The front shock absorption mechanism (8) includes a front shock absorber seat (83), a shock absorber piston cylinder (80), a piston rod (81), and a front shock absorber spring (82). One end of the piston rod (81) is fitted inside the shock absorber piston cylinder (80) and extends and retracts inside the shock absorber piston cylinder (80). The other end of the piston rod (81) is connected to the front shock absorber seat (83). The front shock absorber seat (83) is fixed on the positioning square tube (11). The front shock absorber spring (82) is sleeved on the shock absorber piston cylinder (80) and the piston rod (81). The two ends of the front shock absorber spring (82) are respectively connected to the bottom of the shock absorber piston cylinder (80) and the end of the front shock absorber seat (83). The top of the shock absorber piston cylinder (80) is hinged to the stroller frame (1).

Images