A quick-folding device for children's strollers

By designing a quick-folding device for children's strollers, utilizing frame folding components and seat unfolding components, the problem of requiring two hands and multiple steps in existing technologies has been solved, achieving the effect of quick folding with one hand and stable seat.

CN224427508UActive Publication Date: 2026-06-30NINGBO XIHE CHILDREN PRODS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO XIHE CHILDREN PRODS
Filing Date
2025-09-18
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Current strollers require both hands to complete multiple steps, such as unlocking the push lever, folding the support frame, and locking, making it difficult to fold and fold quickly when holding a toddler with one hand.

Method used

A quick-folding device for a children's stroller was designed, including a frame folding assembly and a seat unfolding assembly. The device is unlocked by pulling a U-shaped lever, and the internal moving parts rotate around a fixed axis. The folding is assisted by a coil spring and a return spring, and the folding can be completed with one hand. The seat unfolding assembly drives the fabric seat to unfold or fold through a connecting rod and a connecting frame.

Benefits of technology

It enables quick one-handed folding of the trolley, reducing manpower consumption, ensuring the stability of the seat after unfolding, preventing shaking, and simplifying the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a quick-folding device for a children's stroller, relating to the field of children's stroller technology. It includes a frame folding assembly and a seat unfolding assembly installed between several stroller frames. A fabric seat is installed between the several stroller frames. The frame folding assembly includes an inner movable part, an outer movable part, a fixed shaft, a fixed bolt, a first limiting block, a second limiting block, a coil spring, a positioning hole, a hollow connecting arm, a positioning rod, a return spring, a slide groove, a connecting block, and a U-shaped pull rod. Specifically, by setting up the frame folding assembly, pulling the U-shaped pull rod allows the positioning rod to slide along the slide groove and disengage from the positioning hole via the connecting block, thus unlocking the stroller. The inner movable part can rotate flexibly around the fixed shaft relative to the outer movable part, and the coil spring assists in rotating the inner movable part, folding the frame. The user can fold the stroller with one hand, making it convenient to use.
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