A component hole protection piece and mounting device thereof

The combination of a protective outer cylinder and a protective inner rod solves the problem of difficult rubber plug installation during the electrophoresis process of automotive seat frames, achieving convenient installation and stable fixation, ensuring electrophoresis quality, and improving production efficiency.

CN122406337APending Publication Date: 2026-07-17HUBEI MINSHENGLI PRECISION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUBEI MINSHENGLI PRECISION TECH CO LTD
Filing Date
2026-04-22
Publication Date
2026-07-17

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Abstract

本发明提供了一种新的零部件内孔防护件及其安装装置，包括防护外筒以及防护内杆，防护外筒由柔性或弹性材料制成，防护内杆由硬质材料制成，防护外筒的外壁呈圆筒形，且防护外筒的外径小于待穿过部件的内径，贯穿防护外筒的中部开设有圆台形的渐变孔，防护内杆呈圆台状，且防护内杆的外壁活动贴合于渐变孔，防护外筒的端部同轴设置有圆台形的终止件，位于渐变孔直径最大一端的防护外筒与终止件直径最小的一端相连，且终止件的最小直径与防护外筒的外径相等，终止件的最大直径大于待穿过部件的内径，防护内杆活动穿过终止件的中部，且终止件位于防护内杆的两端之间。
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