End face spraying protective sleeve for special-shaped bushing

By designing a protective sleeve for spraying the inner end face of the irregular bushing, using high-strength wear-resistant rubber material and a precise positioning structure, the problem of traditional sleeves not being able to fit with irregular end face bushings has been solved, realizing efficient and automated spraying production, reducing costs and waste, and improving production efficiency and product quality.

CN224525038UActive Publication Date: 2026-07-21ANHUI ZHONGDING NVH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI ZHONGDING NVH
Filing Date
2025-08-13
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional general-purpose protective sleeves cannot fit well with bushings with irregular end face structures, making it difficult to use with spray guns, resulting in inadequate masking or spraying contamination, and failing to meet the needs of automated production.

Method used

A protective sleeve for spraying the inner end face of an irregular bushing was designed. It is made of high-strength wear-resistant rubber material. Through the positioning boss, positioning groove, self-spraying rod and through hole structure, the sleeve and inner sleeve are accurately positioned and quickly assembled, ensuring the coaxiality and stability of the spraying operation.

Benefits of technology

It improved production efficiency and product consistency, reduced the cost of manual masking materials, reduced waste, and achieved efficient and reliable automated spraying production, thereby improving spraying efficiency and sealing reliability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224525038U_ABST
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Abstract

The utility model discloses a kind of inner sleeve end face spraying protective sleeve of special-shaped bush, including multiple inner sleeves and the protective sleeve of adhesion setting in the end face of inner sleeve;Second through-hole is opened in the position of the upper portion of the end face of inner sleeve;Inner sleeve bottom is provided with recess portion;Slope portion is uniformly arranged at four bottom corners of inner sleeve;The position corresponding to second through-hole of protective sleeve end face is opened with the first through-hole of penetration;First through-hole and second through-hole are commonly provided with self-spraying rod;The position corresponding to recess portion of protective sleeve bottom is opened with the first groove body of opening downward;Using positioning boss, positioning groove and the self-spraying rod commonly arranged in first through-hole and second through-hole structure, realize the good adhesion of protective sleeve and the end face of two ends of inner sleeve, solve the technical problem that traditional general protective sleeve in prior art not only cannot be well adhered with the end face of bush inner sleeve with special-shaped end face structure, also difficult to cooperate with self-spraying rod, thereby leading to not strict or spraying pollution shielding, increase practicality.
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