Frameless folding vehicle

Through a frameless three-dimensional support system and synchronous folding technology, the problems of inconvenient storage and insufficient support of traditional folding bikes are solved, achieving a lightweight and convenient folding bike user experience.

CN122166181APending Publication Date: 2026-06-09武义山秋休闲用品有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
武义山秋休闲用品有限公司
Filing Date
2026-05-08
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing folding bikes rely on rigid outer frames, resulting in large storage size and heavy weight. Folding operations are also cumbersome and inconvenient, and the lack of continuous lateral support affects the reliability of use.

Method used

Featuring a frameless design, a three-dimensional support system is constructed through the hinge of fixed vertical bars and various folding components, enabling the vehicle body to fold synchronously in the front-to-back and left-to-right directions. Stable support and load-bearing capacity are achieved using X-shaped bottom connectors and linkage sliding sleeves, and telescopic rods and handles are provided for convenient operation.

Benefits of technology

Frameless folding bikes reduce storage volume and weight while enabling convenient and simultaneous folding, providing continuous lateral support and stable load-bearing capacity, thus improving portability and safety.

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Abstract

This invention relates to the field of handcart technology and discloses a frameless folding cart, comprising four base fixing members, each with a movable wheel mounted on its bottom; a fixing groove is provided on the top of each base fixing member, and a fixing vertical rod is installed within the fixing groove; a first groove, a second groove, and a third groove are sequentially provided on the side of each base fixing member, with the first groove and the third groove being perpendicular to each other; a side folding support assembly is hinged between adjacent first grooves; a bottom folding support assembly is hinged between the four second grooves; a front and rear folding assembly is hinged between adjacent third grooves; and a push assembly is connected between the two base fixing members located on the front side via a linkage assembly. In this invention, the hinged coordination of the fixing vertical rod and each folding assembly constructs a frameless three-dimensional support system, eliminating the weight and volume of traditional frames, significantly reducing the thickness after folding, and making the entire cart lighter and more convenient.
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