Chassis structure and climbing toy car

By employing a compound meshing gear structure and a vertically arranged front and rear axle drive mechanism in the toy off-road vehicle, the problems of insufficient driving performance and low space utilization are solved, achieving efficient hill climbing and stable driving.

CN224506253UActive Publication Date: 2026-07-17
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-07-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing toy off-road vehicles have insufficient driving performance, making it difficult to provide enough torque to meet the climbing requirements. Their transmission systems are bulky and suffer from severe energy loss. Their shock absorption and vehicle stability are poor, affecting handling stability and fun.

Method used

The power mechanism, which adopts a compound meshing gear structure, includes an input shaft, an intermediate shaft, and an output shaft. It combines stepped gears and cylindrical gears to achieve multi-stage reduction and speed change, and optimizes space utilization by vertically arranging transmission rods and drive shafts in the front and rear axle drive mechanisms.

Benefits of technology

It improves transmission efficiency and output torque to meet climbing requirements, reduces the size of the power unit, and enhances the stability and enjoyment of the vehicle on complex terrain.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of toy technology, and in particular to a chassis structure and a climbing toy vehicle. In the power mechanism of the chassis structure, a compound meshing structure of stepped gears and cylindrical gears is arranged on the input shaft, intermediate shaft, and output shaft. The input gear on the input shaft meshes with the large-diameter end of the second stepped gear on the intermediate shaft to achieve first-stage reduction. Simultaneously, the small-diameter end of the first stepped gear on the input shaft meshes with the speed-changing gear on the intermediate shaft to form a multi-stage speed-changing path. Power is output through the meshing of the speed-changing gear on the intermediate shaft with the output gear on the output shaft. This improves transmission efficiency and output torque, enabling the climbing toy vehicle to meet climbing requirements. In terms of spatial layout, the input shaft, intermediate shaft, and output shaft are arranged vertically and compactly, reducing the volume of the power mechanism. Furthermore, the front and rear axle drive mechanisms use vertically arranged transmission rods and drive shafts, utilizing the meshing of helical and spur gears to further optimize space utilization.
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