Tool-free stem assembly structure and bicycle
Through the design of toolless vertical assembly structure, the coordination of the guide bevel and the clamping part, combined with the elastic force of the spring, the automatic fixation of the vertical and vertical pipes is achieved, solving the problem of tool installation in the prior art, and improving the convenience and safety of installation.
CN119749760APending Publication Date: 2025-04-04BEIJING ROYALBABY BAIQI CHILDRENS ARTICLES
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Patent Information
- Application Number
- CN202411994489.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-04-04
AI Technical Summary
Technical Problem
The installation of existing bicycle handlebars requires the use of tools, which leads to failure to install in the absence of tools.
Method used
A toolless mount assembly structure is designed. By cooperating with the insertion end of the mount and the top opening of the mount pipe, the structure of the guide slope and the clamping part are used, combined with the spring elastic force, the automatic fixation of the mount and the vertical pipe is achieved.
Benefits of technology
The toolless installation of stand and stand pipes is realized, which simplifies the installation process and improves the convenience and safety of installation.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a tool-free stem assembly structure, and relates to the technical field of bicycles, the tool-free stem assembly structure comprises a stem and a vertical pipe, an insertion end at the bottom of the stem is suitable for being inserted from a top opening of the vertical pipe, a first clamping part is arranged on the side wall of the stem, and a guide slope is arranged at the end part of the insertion end of the stem; the quick positioning structure is assembled on the vertical pipe, the quick positioning structure comprises a second clamping part capable of moving in the radial direction of the vertical pipe and an elastic piece applying bias pressure towards the interior of the vertical pipe to the second clamping part, and the second clamping part is provided with an extending position extending into the interior of the vertical pipe; the retraction position moves outwards in the radial direction to retreat from the interior of the vertical pipe; when the stem is inserted into the vertical pipe, the guide slope pushes the second clamping portion to move from the extending position to the retracting position, and when the first clamping portion is aligned with the second clamping portion, the second clamping portion moves from the retracting position to the extending position under the action of bias pressure of the elastic piece and is in clamping fit with the first clamping portion. The defect that a handlebar stem and a vertical pipe are inconvenient to install in the prior art is overcome.
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