A toy car with manual steering control

Abstract

This invention provides a manually directional toy car, relating to the field of toy car technology. It includes a chassis with a rear wheel assembly, a drive mechanism, and a front wheel assembly mounted on it. The rear wheel assembly is mounted at the rear of the chassis and is connected to the drive mechanism. The output end of the drive mechanism is connected to the drive wheel axle of the rear wheel assembly. The front wheel assembly is mounted at the front of the chassis. It also includes a steering wheel, rotatably mounted on a wheel frame, which is rotatably mounted on the chassis. This invention achieves automatic rotation through the coordinated action of the tilted steering wheel and the rear wheel assembly. An adjustment frame drives the wheel frame to rotate, thereby changing the tilt angle of the steering wheel and adjusting the toy car's rotation radius, enriching the play modes and improving the toy car's playability. This invention achieves automatic rotation through a purely mechanical transmission design, eliminating the need for a remote control or battery power, thus extending the toy car's lifespan.

Description

Technical Field

[0001] This utility model mainly relates to the field of toy car technology, specifically to a toy car with manually controlled direction. Background Technology

[0002] Currently, there is a wide variety of children's toy cars on the market, many of which have movement and steering functions to meet children's play needs. However, many existing toy cars often rely on remote control devices or battery-powered drive systems to achieve special movement trajectories such as spinning. This not only increases the manufacturing cost of the toy cars but also leads to problems such as frequent battery replacements and easy damage to electronic components. In particular, for children's toys, the drop resistance is poor, making it difficult to withstand repeated operation and collisions by children, which significantly shortens the lifespan of the toy cars.

[0003] Meanwhile, some toy cars capable of spinning lack precise steering control. Their steering angle cannot be effectively limited, easily leading to oversteering and causing the toy car to tip over during spinning. This not only affects children's play experience but also poses a safety hazard. Furthermore, most of these toy cars cannot flexibly adjust their spinning radius, resulting in limited play modes, low playability, and difficulty in maintaining children's attention.

[0004] Against this backdrop, a toy car that does not rely on remote control and batteries, has a sturdy and durable structure, and whose steering angle is controllable and whose turning radius can be adjusted has become an urgent market demand. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model:

[0006] This invention provides a toy car with manually controllable direction to solve the technical problems existing in the background art.

[0007] 2. Technical Solution:

[0008] To achieve the above objectives, the technical solution provided by this utility model is as follows: a toy car with manually controlled direction, including a chassis, on which a rear wheel assembly, a drive mechanism, and a front wheel assembly are provided. The rear wheel assembly is installed at the rear of the chassis and is connected to the drive mechanism. The drive mechanism is fixedly installed above the middle of the chassis, and the output end of the drive mechanism is connected to the drive wheel axle of the rear wheel assembly. The front wheel assembly is installed at the front of the chassis.

[0009] It also includes a steering wheel, which is rotatably mounted on a wheel frame. The wheel frame is rotatably mounted on the chassis. The wheel frame is located between the front wheel assembly and the drive mechanism. The wheel frame adjusts the angle of the steering wheel by rotating itself. The drive mechanism drives the rear wheel assembly to rotate. The steering wheel contacts the ground, and the front wheel assembly is suspended in the air. Due to the tilt of the steering wheel, the toy car rotates in circles.

[0010] Preferably, an adjustment frame is fixedly installed on the outer side of the wheel frame, and an arc-shaped limiting groove is provided on the chassis. The limiting groove is set with the rotation center of the wheel frame as the center. A pin is fixedly installed at the end of the adjustment frame away from the wheel frame. The pin is inserted into the limiting groove and can slide along the direction of the limiting groove.

[0011] Preferably, the rotation angle range of the wheel frame is [-α, α], where the central axis of the chassis is defined as the 0° baseline, and the value range of α is 0° < α ≤ 30°.

[0012] Preferably, the chassis has a mounting groove, the wheel frame includes a mounting cylinder and a limiting ring connected vertically, the mounting cylinder is rotatably installed in the mounting groove, the limiting ring is in contact with the bottom surface of the chassis, and the adjusting frame is sleeved on the mounting cylinder and located on the top surface of the chassis.

[0013] Preferably, two mounting plates are arranged in parallel inside the mounting cylinder, forming a placement groove for the steering wheel between the two mounting plates, and a mounting shaft is rotatably mounted between the two mounting plates, with the steering wheel fixed on the mounting shaft.

[0014] Preferably, two threaded seats are installed on the chassis, and the two threaded seats are installed on the chassis at intervals. The threaded seats are used to connect to the vehicle body.

[0015] Preferably, the drive mechanism includes a mounting frame fixed to the chassis, a drive wheel shaft rotatably mounted on the mounting frame, a driven gear fixedly sleeved on the drive wheel shaft, a fixed shaft of a drive gear rotatably mounted on the mounting frame, the drive gear being connected to the driven gear via a reduction gear set, and a mounting ring fixedly mounted on the mounting frame, a spring-loaded spring being disposed inside the mounting ring, one end of the spring being connected to the mounting ring and the other end being connected to the fixed shaft of the drive gear.

[0016] 3. Beneficial effects:

[0017] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0018] This invention utilizes the coordinated action of an inclined steering wheel and the rear wheel assembly to achieve automatic circling. Simultaneously, an adjustment frame rotates the wheel frame, changing the tilt angle of the steering wheel and thus adjusting the toy car's circling radius, enriching the play modes and enhancing its playability. Furthermore, when the toy car needs to travel in a straight line, simply adjust the steering wheel of the wheel frame to a position parallel to the chassis's central axis (0° baseline). At this point, the steering wheel has no tilt angle, and straight-line travel is achieved under the drive of the rear wheel assembly. This design achieves rapid switching between "circling" and "straight-line" travel modes through wheel frame angle adjustment, requiring no additional complex structures, simplifying operation, and further enhancing the toy car's functional versatility and flexibility.

[0019] This invention achieves automatic rotation function based on pure mechanical transmission design, requiring no remote control or battery power throughout the process. Thanks to its structure without electronic components, it significantly improves drop resistance, meets the needs of children for repeated operation, and greatly extends the service life of the toy car.

[0020] This invention uses the combination of the limiting groove and the adjusting bracket to form an angle constraint, which can accurately limit the tilt range of the steering wheel, effectively prevent the vehicle from overturning due to excessive steering angle, and provide reliable safety for children to play. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle;

[0023] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the wheel frame structure of this utility model;

[0025] Figure 5 This is a schematic diagram showing the positions of the steering wheel and front wheel assembly of this utility model;

[0026] Figure 6 This is a schematic diagram of the wheel frame steering range of this utility model;

[0027] Figure 7 This is a schematic diagram of the drive mechanism structure of this utility model.

[0028] Figure label:

[0029] 1. Chassis; 2. Rear wheel assembly; 3. Drive mechanism; 31. Mounting bracket; 32. Drive wheel axle; 33. Driven gear; 34. Reduction gear set; 35. Mounting ring; 36. Spring; 37. Drive gear; 4. Front wheel assembly; 5. Steering wheel; 6. Wheel frame; 61. Mounting cylinder; 62. Mounting plate; 63. Placement slot; 64. Limiting ring; 65. Mounting shaft; 7. Adjusting bracket; 8. Limiting slot; 9. Pin; 10. Threaded seat; 11. Mounting slot. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" 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 according to the specific circumstances.

[0034] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Example

[0035] See attached document Figures 1-7 A toy car with manually controlled direction includes a chassis 1, on which a rear wheel assembly 2, a drive mechanism 3, and a front wheel assembly 4 are mounted. The rear wheel assembly 2 is mounted at the rear of the chassis 1 and is connected to the drive mechanism 3. The drive mechanism 3 is fixedly mounted above the middle of the chassis 1, and the output end of the drive mechanism 3 is connected to the drive wheel axle 32 of the rear wheel assembly 2. The front wheel assembly 4 is mounted at the front of the chassis 1.

[0036] It also includes a steering wheel 5, which is rotatably mounted on a wheel frame 6. The wheel frame 6 is rotatably mounted on a chassis 1. The wheel frame 6 is located between the front wheel assembly 4 and the drive mechanism 3. The wheel frame 6 adjusts the angle of the steering wheel 5 by rotating itself. The drive mechanism 3 drives the rear wheel assembly 2 to rotate. The steering wheel 5 contacts the ground, and the front wheel assembly 4 is suspended in the air. Because the steering wheel 5 is tilted, it causes the toy car to turn in circles.

[0037] An adjustment frame 7 is fixedly installed on the outer side of the wheel frame 6. An arc-shaped limiting groove 8 is provided on the chassis 1. The limiting groove 8 is set with the rotation center of the wheel frame 6 as the center. A pin 9 is fixedly installed at the end of the adjustment frame 7 away from the wheel frame 6. The pin 9 is inserted into the limiting groove 8 and can slide along the direction of the limiting groove 8.

[0038] The rotation angle range of wheel frame 6 is [-α, α], where the central axis of chassis 1 is defined as the 0° baseline, and the value range of α is 0° < α ≤ 30°. For example... Figure 6 As shown, in this embodiment, α is 22.5°. When the rotation angle of the wheel frame 6 is -α, the toy car rotates counterclockwise. When the rotation angle of the wheel frame 6 is α, the toy car rotates clockwise.

[0039] The chassis 1 has an installation groove 11. The wheel frame 6 includes an installation cylinder 61 and a limiting ring 64 connected vertically. The installation cylinder 61 is rotatably installed in the installation groove 11. The limiting ring 64 is in contact with the bottom surface of the chassis 1. The adjustment frame 7 is sleeved on the installation cylinder 61 and located on the top surface of the chassis 1.

[0040] Two mounting plates 62 are arranged parallel to each other inside the mounting cylinder 61. A groove 63 for placing the steering wheel 5 is formed between the two mounting plates 62. A mounting shaft 65 is rotatably mounted between the two mounting plates 62, and the steering wheel 5 is fixed on the mounting shaft 65. Figure 4 As shown, the installation shaft 65 is a schematic diagram of the exploded state.

[0041] Two threaded seats 10 are installed on the chassis 1, and the two threaded seats 10 are installed at intervals on the chassis 1. The threaded seats 10 are used to connect the car body.

[0042] The drive mechanism 3 includes a mounting frame 31, which is fixed on the chassis 1. A drive wheel shaft 32 is rotatably mounted on the mounting frame 31. A driven gear 33 is sleeved and fixed on the drive wheel shaft 32. A fixed shaft of a drive gear 37 is rotatably mounted on the mounting frame 31. The drive gear 37 is connected to the driven gear 33 through a reduction gear set 34. A mounting ring 35 is also fixedly mounted on the mounting frame 31. A spring 36 is provided inside the mounting ring 35. One end of the spring 36 is connected to the mounting ring 35, and the other end is connected to the fixed shaft of the drive gear 37.

[0043] Example 2 differs from Example 1 in that the drive mechanism 3 is an inertial gearbox, which mainly includes a housing, an inertial flywheel, a gear set, an input shaft, and an output shaft. The housing is used to fix the internal components; the inertial flywheel is a large, disc-shaped structure and is the core component for storing kinetic energy; the input shaft is connected to the inertial flywheel, and the output shaft is connected to the drive wheel shaft 32; the gear set connects the inertial flywheel and the output shaft through meshing transmission, and plays the role of adjusting the speed and transmitting torque.

[0044] Example 3 differs from Examples 1 and 2 in that the drive mechanism 3 is connected to the front wheel assembly 4, while the rear wheel assembly 5 is slightly suspended in the air.

[0045] Working principle:

[0046] Energy storage stage: When the user pulls the toy car backward, the rear wheel assembly 2 rubs against the ground, causing the drive wheel axle 32 to rotate. The driven gear 33 on the drive wheel axle 32 drives the driving gear 37 to rotate through the reduction gear set 34. The fixed shaft of the driving gear 37 rotates synchronously and stretches the spring 36, converting kinetic energy into elastic potential energy and storing it in the spring 36 112.

[0047] Energy release phase: After releasing the spring, the spring 36 returns to its original position, releasing elastic potential energy and driving the drive gear 37 to rotate in the opposite direction. Through the multi-stage transmission of the reduction gear set 34, the driven gear 33's speed decreases but its torque increases, ultimately driving the rear wheel set 2 to rotate slowly and powerfully, propelling the vehicle forward.

[0048] During the turning or straight-line driving phase: When the rear wheel assembly 2 rotates, the steering wheel 5 contacts the ground and generates lateral friction due to the tilt angle α (0° < α ≤ 30°) of the wheel frame 6. According to the principles of vehicle dynamics, the lateral friction provides centripetal force, causing the vehicle to travel along a circular path. The adjustment frame 7 slides within the limiting groove 8 via the pin 9, limiting the rotation angle range of the wheel frame 6 to [-α, α], ensuring a stable and controllable turning radius. When the toy car needs to travel in a straight line, it is only necessary to adjust the steering wheel 5 to a position parallel to the central axis of the chassis 1 (0° baseline) via the wheel frame 6. At this time, the steering wheel 5 has no tilt angle, and straight-line driving can be achieved under the drive of the rear wheel assembly 2.

[0049] Front wheel suspension mechanism: The front wheel assembly 4 is suspended due to the support of the steering wheel 5, and the vehicle's center of gravity shifts to between the rear wheel assembly 2 and the steering wheel 5, reducing front wheel resistance and enhancing the steering wheel's grip, making the turning motion smoother.

[0050] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A toy car with manually controlled direction, comprising a chassis (1), wherein a rear wheel assembly (2), a drive mechanism (3), and a front wheel assembly (4) are disposed on the chassis (1), characterized in that: The rear wheel assembly (2) is installed at the rear of the chassis (1), and the rear wheel assembly (2) is connected to the drive mechanism (3) in a transmission connection. The drive mechanism (3) is fixedly installed above the middle part of the chassis (1). The output end of the drive mechanism (3) is connected to the drive wheel axle (32) of the rear wheel assembly (2). The front wheel assembly (4) is installed at the front of the chassis (1). It also includes a steering wheel (5), which is rotatably mounted on a wheel frame (6). The wheel frame (6) is rotatably mounted on the chassis (1). The wheel frame (6) is located between the front wheel assembly (4) and the drive mechanism (3). The wheel frame (6) adjusts the angle of the steering wheel (5) by rotating itself. The drive mechanism (3) drives the rear wheel assembly (2) to rotate. The steering wheel (5) contacts the ground, and the front wheel assembly (4) is suspended in the air. Because the steering wheel (5) is tilted, it drives the toy car to turn in circles.

2. The toy car with manually controlled direction according to claim 1, characterized in that: An adjustment frame (7) is fixedly installed on the outer side of the wheel frame (6). An arc-shaped limiting groove (8) is provided on the chassis (1). The limiting groove (8) is set with the rotation center of the wheel frame (6) as the center. A pin (9) is fixedly installed at the end of the adjustment frame (7) away from the wheel frame (6). The pin (9) is inserted into the limiting groove (8) and can slide along the direction of the limiting groove (8).

3. A toy car with manually controlled direction according to claim 2, characterized in that: The rotation angle range of the wheel frame (6) is [-α, α], where the central axis of the chassis (1) is defined as the 0° baseline, and the value range of α is 0° < α ≤ 30°.

4. A toy car with manually controlled direction according to claim 3, characterized in that: The chassis (1) has an installation groove (11). The wheel frame (6) includes an installation cylinder (61) and a limiting ring (64) connected vertically. The installation cylinder (61) is rotatably installed in the installation groove (11). The limiting ring (64) is in contact with the bottom surface of the chassis (1). The adjustment frame (7) is sleeved on the installation cylinder (61) and located on the top surface of the chassis (1).

5. A toy car with manually controlled direction according to claim 4, characterized in that: Two mounting plates (62) are arranged in parallel inside the mounting cylinder (61). A placement groove (63) for the steering wheel (5) is formed between the two mounting plates (62). An mounting shaft (65) is rotatably mounted between the two mounting plates (62), and the steering wheel (5) is fixed on the mounting shaft (65).

6. A toy car with manually controlled direction according to claim 1, characterized in that: Two threaded seats (10) are installed on the chassis (1), and the two threaded seats (10) are installed on the chassis (1) at intervals. The threaded seats (10) are used to connect the vehicle body.

7. A toy car with manually controlled direction according to claim 1, characterized in that: The drive mechanism (3) includes a mounting frame (31), which is fixed on the chassis (1). The drive wheel shaft (32) is rotatably mounted on the mounting frame (31). A driven gear (33) is sleeved and fixed on the drive wheel shaft (32). The fixed shaft of the drive gear (37) is rotatably mounted on the mounting frame (31). The drive gear (37) is connected to the driven gear (33) through a reduction gear set (34). A mounting ring (35) is also fixedly mounted on the mounting frame (31). A spring spring (36) is provided inside the mounting ring (35). One end of the spring spring (36) is connected to the mounting ring (35), and the other end is connected to the fixed shaft of the drive gear (37).

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