一种三折半婴儿推车

By introducing a rotation offset mechanism and a tilting receiving groove into the tri-fold baby stroller, the problem that the rear wheel structure cannot be adjusted in space in the prior art is solved, achieving a more compact and stable folding effect, simplifying operation and avoiding interference.

CN121375915BActive Publication Date: 2026-07-17OSK BABY & CHILDREN PROD FUJIAN

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
OSK BABY & CHILDREN PROD FUJIAN
Filing Date
2025-11-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing tri-fold strollers are bulky and not compact when folded. The movement trajectory of the rear wheel structure is strictly limited, and the spatial position cannot be actively adjusted, making it difficult to compress the width when folded, which may cause interference with other components.

Method used

A rotary offset mechanism is used as the rotation center of the rear wheel structure. Combined with an inclined receiving groove and mechanical limit, the rear wheel structure generates linear offset during rotation. The composite motion of the rear wheel, including rotation and linear offset, is achieved through the design of the tilt angle θ, ensuring that the rear wheel can actively approach and embed itself into the vehicle body when it is retracted.

Benefits of technology

It effectively reduces the overall width after folding, avoids component interference, achieves a more compact and stable folding shape, simplifies the operation process, and improves convenience and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种三折半婴儿推车,本发明技术方案包括手把结构、前轮结构以及后轮结构。本发明的核心创新在于还包括旋转偏移机构。旋转偏移机构被配置为后轮结构的旋转中心。具体而言,当用户进行收车操作时,后轮结构会相对于旋转偏移机构转动。旋转偏移机构通过内部预设的机械限位,对后轮结构施加强制性的引导作用,这使得后轮结构在完成常规的旋转折叠动作之外,还额外产生了在垂直于转动方向平面上的线性偏移。由此,后轮结构不仅能绕轴转动,更能主动地向内横向移动,相互靠拢。因此,本发明在收合过程中能有效缩小收合后的整体宽度与空间占用,实现了推车收合体积减小、形态更紧凑稳定的有益效果。
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