Dual-drive front wheel steering mechanism of engineering van for children and engineering van for children

Abstract

The utility model discloses a child engineering vehicle dual-drive front wheel steering mechanism which comprises a machine frame, a steering rod, a steering shaft and a front wheel steering assembly, the steering rod is installed on the machine frame, and the steering rod is connected with the front wheel steering assembly through the steering shaft. The front wheel steering assembly comprises a spindle, the lower end of the spindle is fixedly connected with a connecting plate, and the spindle extends downwards and is transversely and integrally connected with a wheel connecting rod. A supporting plate and a reinforcing plate which are integrally connected are fixedly mounted on the wheel connecting rod, and the reinforcing plate is fixedly connected to the lower side of the connecting plate; the front wheel steering assembly further comprises a driver, the driver is provided with a rotating output end and a driving motor, the rotating output end and the wheel connecting rod are coaxially arranged and used for driving the front wheels, and the outer side of the driving motor is fixedly connected with the supporting plate. The supporting plate and the reinforcing plate which are integrally connected are fixedly mounted on the wheel connecting rod to support and limit the driving motor, so that the connecting strength of the driving motor is improved, the applicability of the baby carriage to a complex environment is enhanced, and the driving safety coefficient of children is improved.

Description

Technical Field

[0001] This utility model relates to toy cars, and more particularly to a dual-drive front wheel steering mechanism for a children's engineering vehicle, and also to a children's engineering vehicle having the dual-drive front wheel steering mechanism. Background Technology

[0002] Children's engineering vehicles are toy vehicles designed specifically for children, aiming to help children learn and explore engineering knowledge while playing by simulating the functions and operation of real engineering vehicles.

[0003] Currently, there are many types of children's vehicles on the market, and people's demand for children's vehicles is increasing. As an indispensable part of children's vehicles, the steering mechanism has increasingly higher requirements for its structure.

[0004] Chinese Patent No. CN107697210B discloses an all-wheel steering mechanism for a children's vehicle. Its key technical feature is that all-wheel steering is achieved by controlling the front wheel steering mechanism and the rear wheel steering mechanism connected to the steering shaft through a steering rod. Chinese Patent No. CN108394464A discloses a steering mechanism for a children's vehicle. Its key technical feature is that front wheel steering is achieved by controlling the front wheel steering mechanism connected to the steering shaft through a steering rod.

[0005] In the above solutions, the drive motors are all mounted laterally on the wheel connecting rods, relying solely on a lateral fixing plate fixed to the wheel connecting rods for horizontal support and limitation. This results in low connection strength of the drive motors, poor adaptability to the driving environment, and potential safety hazards. Therefore, this utility model provides a new technical solution to address the above problems. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a dual-drive front wheel steering mechanism for children's engineering vehicles. This dual-drive front wheel steering mechanism uses a specific reinforcing plate fixedly installed on the wheel connecting rod to support and limit the drive motor, thereby improving the connection strength of the drive motor and enhancing the adaptability of the children's vehicle to complex environments.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A dual-drive front-wheel steering mechanism for a children's engineering vehicle includes a frame, a steering rod, a steering shaft, and a front-wheel steering assembly. The steering rod is mounted on the frame and connected to the front-wheel steering assembly via the steering shaft.

[0009] The front wheel steering assembly includes a main shaft, with a connecting plate fixedly connected to the lower end of the main shaft, and the main shaft extending downwards and integrally connected to a wheel connecting rod laterally.

[0010] A support plate is fixedly installed on the wheel connecting rod, and a reinforcing plate is integrally connected above the support plate. The reinforcing plate is fixedly connected to the lower side of the connecting plate.

[0011] The front wheel steering assembly also includes a driver, which is arranged laterally and has a rotary output end and a drive motor. The rotary output end of the driver is coaxially arranged with the wheel connecting rod and is used to drive the front wheel. The drive motor is fixedly connected to the support plate on the outside.

[0012] The present invention is further configured such that sleeves are fixedly connected to both ends of the frame, and the main shafts on the front wheel steering assembly are respectively inserted inside the sleeves to form a rotatable connection with the frame.

[0013] The present invention is further configured such that the upper end of the steering rod is fixedly connected to the steering wheel, the middle end is fixedly connected to the steering drive, and the lower end of the steering rod is connected to the steering shaft in a Z-shape.

[0014] The present invention is further configured such that the two ends of the steering shaft are rotatably connected to the upper part of the connecting plate on the front wheel steering assembly, and the connecting piece is integrally connected in the middle position. The connecting piece has a connecting hole that runs through the top and bottom, and the lower end of the steering rod passes through the connecting hole.

[0015] The present invention is further configured such that a limiting ring is provided at the end of the support plate, the limiting ring is sleeved around the drive motor and is fitted and fixed to the outer periphery of the drive motor to form a support and limiting ring.

[0016] The present invention is further configured such that a second connecting hole is provided at the center of the rotating output end of the driver, and the wheel connecting rod passes through the second connecting hole and is connected to the front wheel.

[0017] The present invention is further configured such that a transmission block is fixedly installed on the inner side of the front wheel, and the rotation output end of the driver is nested and installed on the outer periphery of the transmission block.

[0018] The present invention is further configured such that limiting blocks are provided at both ends of the steering shaft, and the limiting blocks can abut against the inner side of the connecting plate to form a rotational limiting with a fixed rotation angle.

[0019] A children's engineering vehicle, comprising a dual-drive front-wheel steering mechanism as described in any of the preceding claims.

[0020] The beneficial effects of this utility model are: the dual-drive front wheel steering mechanism uses a support plate and a reinforcing plate fixedly installed on the wheel connecting rod to support and limit the drive motor installed on the wheel connecting rod, thereby improving the connection strength of the drive motor, enhancing the adaptability of the stroller to complex environments, and improving the safety factor of children driving. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of a children's engineering vehicle in this embodiment.

[0022] Figure 2 This is a schematic diagram of a dual-drive front wheel steering mechanism for a children's engineering vehicle in this embodiment.

[0023] Figure 3 This is an exploded view of a dual-drive front wheel steering mechanism for a children's engineering vehicle in this embodiment.

[0024] Figure 4 This is a schematic diagram of the front wheel steering component structure in a dual-drive front wheel steering mechanism for a children's engineering vehicle in this embodiment.

[0025] Figure 5 This is an exploded view of the front wheel steering component in a dual-drive front wheel steering mechanism for a children's engineering vehicle in this embodiment.

[0026] Reference numerals: Frame 1; Sleeve 11; Steering rod 2; Steering wheel 21; Steering drive 22; Steering shaft 3; Connecting piece 31; Connecting hole one 311; Limiting block 32; Front wheel steering assembly 4; Main shaft 41; Wheel connecting rod 42; Driver 43; Drive motor 431; Rotary output end 432; Connecting hole two 433; Front wheel 44; Connecting plate 45; Support plate 46; Limiting ring 461; Reinforcing plate 47. Detailed Implementation

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

[0028] This embodiment discloses a dual-drive front-wheel steering mechanism for a children's engineering vehicle, which is generally used in conjunction with a children's engineering vehicle. (Refer to...) Figures 1-5 As shown, it mainly includes a frame 1, a steering rod 2, a steering shaft 3, and a front wheel steering assembly 4. The steering rod 2 is mounted on the frame 1 and is connected to the front wheel steering assembly 4 through the steering shaft 3.

[0029] Reference Figure 3 As shown, the front wheel steering assembly 4 includes a main shaft 41 and a driver 43. The main shaft 41 is arranged vertically, and its lower end is fixedly connected to a connecting plate 45. The main shaft 41 extends downward and is integrally connected to a wheel connecting rod 42. A support plate 46 is fixedly installed on the wheel connecting rod 42. A reinforcing plate 47 is integrally connected above the support plate 46. The reinforcing plate 47 is fixedly connected to the lower side of the connecting plate 45.

[0030] The driver 43 has a rotary output end 432 and a drive motor 431. The driver 43 is arranged laterally, and the rotary output end 432 is coaxially arranged with the wheel connecting rod 42. It is mainly used to drive the front wheel 44. A limiting ring 461 is provided at the end of the support plate 46. The limiting ring 461 is sleeved on the periphery of the drive motor 431 and is fixedly fitted to the outer periphery of the drive motor 431. This allows the drive motor 431 to be fixedly connected to the support plate 46 and the reinforcing plate 47, which can realize the vertical limiting support of the drive motor 431, improve the connection strength of the drive motor 431, and maintain its horizontal stability. In order to improve the connection stability between the limiting ring 461 and the outer periphery of the drive motor 431, the two can be bonded and fixed with adhesive, so that the limiting ring 461 is stably connected to the housing of the drive motor 431, forming a fixed connection structure.

[0031] Because the driver 43 is arranged laterally and has a certain length, and there is a certain lateral offset between the drive motor 431 and the wheel connecting rod 42, the drive motor 431 has a certain weight. The support plate 46 is fixed to the wheel connecting rod 42. With the wheel connecting rod 42 as the center, the self-weight of the drive motor 431 has a long lever arm, which places high demands on the welding strength between the wheel connecting rod 42 and the support plate 46.

[0032] In this embodiment, by setting the support plate 46 and the reinforcing plate 47, supplementary support can be formed at the drive motor 431 of the driver 43, forming a support structure reinforcement, thereby making the installation structure of the driver 43 more stable.

[0033] Reference Figure 3 As shown, sleeves 11 are fixedly connected to both ends of the frame 1. The sleeves 11 are arranged vertically. The main shafts 41 on the front wheel steering assembly 4 are respectively inserted into the sleeves 11, so that the front wheel steering assembly 4 and the frame 1 form a rotatable connection, which facilitates the steering of the front wheels of the stroller.

[0034] Reference Figure 3 As shown, a steering wheel 21 is fixedly connected to the upper end of the steering lever 2, a steering drive 22 is fixedly connected to the middle position, and the lower end of the steering lever 2 is connected to the steering shaft 3 in a Z-shape; the two ends of the steering shaft 3 are rotatably connected to the upper part of the connecting plate 45 on the front wheel steering assembly 4, and the middle position is integrally connected to the connecting piece 31. The connecting piece 31 has a connecting hole 311 that runs vertically through it, and the lower end of the steering lever 2 passes through the connecting hole 311.

[0035] Reference Figure 2As shown, when the steering wheel 21 is manually turned, the steering lever 2 rotates under the driving action of the steering drive 22, which pushes the steering shaft 3 to deflect. The steering shaft 3 and the connecting plate 45 on the front wheel steering assembly 4 rotate relative to each other, causing the front wheel 44 to deflect in the same direction around the main shaft 41, thus achieving steering. Limiting blocks 32 are provided at both ends of the steering shaft 3. When the steering shaft 3 deflects to a fixed angle, the limiting blocks 32 on the steering shaft 3 abut against the inner side of the connecting plate 45 to limit the steering. The main function is to control the steering angle of the front wheels of the stroller.

[0036] Reference Figure 4 and Figure 5 As shown, a through connection hole 433 is provided at the center of the rotary output end 432 of the driver 43. The wheel connecting rod 42 passes through the connection hole 433 on the driver and then connects to the front wheel 44. A transmission block 441 is fixedly installed on the inner side of the front wheel 44. The rotary output end 432 fixedly connected to the outer side of the driver 43 is nested on the outer periphery of the transmission block 441 to output power and drive the front wheel 44 to rotate.

[0037] This embodiment also discloses a children's engineering vehicle, including a dual-drive front-wheel steering mechanism for children's engineering vehicles as described above, specifically referring to... Figure 1 As shown.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A dual-drive front-wheel steering mechanism for a children's engineering vehicle, characterized in that, It includes a frame (1), a steering rod (2), a steering shaft (3) and a front wheel steering assembly (4), wherein the steering rod (2) is mounted on the frame (1) and the steering rod (2) is connected to the front wheel steering assembly (4) via the steering shaft (3); The front wheel steering assembly (4) includes a main shaft (41), the lower end of which is fixedly connected to a connecting plate (45), and the main shaft (41) extends downward and is laterally connected to a wheel connecting rod (42). A support plate (46) is fixedly installed on the wheel connecting rod (42), and a reinforcing plate (47) is integrally connected above the support plate (46). The reinforcing plate (47) is fixedly connected to the lower side of the connecting plate (45). The front wheel steering assembly (4) also includes a driver (43), which is arranged laterally. The driver (43) has a rotary output end (432) and a drive motor (431). The rotary output end (432) on the driver (43) is coaxially arranged with the wheel connecting rod (42) and is used to drive the front wheel (44). The drive motor (431) is fixedly connected to the support plate (46) on the outside.

2. The dual-drive front wheel steering mechanism for a children's engineering vehicle according to claim 1, characterized in that, The two ends of the frame (1) are respectively fixedly connected to the sleeves (11), and the main shaft (41) on the front wheel steering assembly (4) is respectively inserted inside the sleeve (11) and forms a rotatable connection with the frame (1).

3. The dual-drive front wheel steering mechanism for a children's engineering vehicle according to claim 1, characterized in that, The upper end of the steering rod (2) is fixedly connected to the steering wheel (21), the middle position is fixedly connected to the steering drive (22), and the lower end of the steering rod (2) is connected to the steering shaft (3) in a Z-shape.

4. The dual-drive front wheel steering mechanism for a children's engineering vehicle according to claim 3, characterized in that, The steering shaft (3) is rotatably connected at both ends to the connecting plate (45) on the front wheel steering assembly (4), and the connecting piece (31) is integrally connected in the middle. The connecting piece (31) has a connecting hole (311) that runs through the top and bottom. The lower end of the steering rod (2) passes through the connecting hole (311).

5. The dual-drive front wheel steering mechanism for a children's engineering vehicle according to claim 1, characterized in that, The end of the support plate (46) is provided with a limiting ring (461), which is sleeved around the drive motor (431) and is fitted and fixed to the outer periphery of the drive motor (431) to form a support limit.

6. The dual-drive front wheel steering mechanism for a children's engineering vehicle according to claim 1, characterized in that, The rotating output end (432) of the driver (43) has a connecting hole 2 (433) at its center, and the wheel connecting rod (42) passes through the connecting hole 2 (433) and is connected to the front wheel (44).

7. A dual-drive front-wheel steering mechanism for a children's engineering vehicle according to claim 6, characterized in that, A transmission block (441) is fixedly installed on the inner side of the front wheel (44), and the rotation output end (432) of the driver (43) is nested on the outer periphery of the transmission block (441).

8. The dual-drive front wheel steering mechanism for a children's engineering vehicle according to claim 1, characterized in that, The steering shaft (3) is provided with limit blocks (32) at both ends. The limit blocks (32) can abut against the inner side of the connecting plate (45) to form a rotation limit with a fixed rotation angle.

9. A children's engineering vehicle, characterized in that, Includes the dual-drive front-wheel steering mechanism for children's engineering vehicles as described in any one of claims 1-8.

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