一种带有一体注塑测量基准面的四型瓶塑料内胆及检测方法

By integrally injection molding a ring-shaped measurement reference surface onto the plastic inner liner body, the problems of inconsistent detection references and error influence in the existing technology are solved, realizing efficient and accurate detection of plastic inner liners, reducing production costs and ensuring structural integrity.

CN122408569APending Publication Date: 2026-07-17WEIFUIT HYDROGEN ENERGY TECHNOLOGY (WUXI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WEIFUIT HYDROGEN ENERGY TECHNOLOGY (WUXI) CO LTD
Filing Date
2026-04-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing testing of plastic liners for four types of hydrogen storage cylinders suffers from problems such as inconsistent standards, distorted measurement data, low testing efficiency, high cost, and damage to structural integrity. In particular, errors after the valve seat is pressed into place have a serious impact, making it impossible to meet mass production requirements.

Method used

An integrally injection-molded annular measuring reference surface is used as a dedicated measuring reference for the plastic inner liner body. It is used for testing after injection molding and before pressing, avoiding the influence of bottle valve seat pressing errors, simplifying the testing process, and improving accuracy and efficiency.

Benefits of technology

It enables rapid full-size inspection of plastic liners, improving inspection accuracy and efficiency, reducing production costs, ensuring structural integrity and sealing reliability, and preventing defective products from flowing into the next process.

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Abstract

本发明涉及一种带有一体注塑测量基准面的四型瓶塑料内胆及检测方法。本发明包括塑料内胆本体,塑料内胆本体包括塑料内胆内伸段和塑料内胆封头段;塑料内胆内伸段与塑料内胆封头段各自内侧面的衔接处设有环形测量基准面,瓶阀座压装于塑料内胆内伸段并与环形测量基准面接触,环形测量基准面与塑料内胆本体一体注塑成型,环形测量基准面垂直于塑料内胆本体的中心轴线,且环形测量基准面用于塑料内胆本体注塑成型后、瓶阀座压装前的塑料内胆本体尺寸与形位公差测量。满足塑料内胆量产阶段的快速全检需求,同时避免二次机加工基准面对塑料内胆结构的破坏,省去额外加工工序,降低生产成本,同时保障塑料内胆的结构完整性与密封可靠性。
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