A kind of water blocking seal rubber block structure for vehicle inner and outer cavity

By using a design that first fills the automotive cavity with foam and then covers it with water-resistant adhesive, the problem of uneven sealing is solved, a tiered sealing is achieved, sealing reliability and uniformity are improved, it is adapted to existing automotive manufacturing processes, and costs are reduced.

CN224528581UActive Publication Date: 2026-07-21JIANGSU XINCHANGYI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU XINCHANGYI TECH CO LTD
Filing Date
2025-09-28
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing automotive sealing block structures, the arrangement of foam and molten adhesive presents risks of uneven sealing and gaps, making it difficult to form a complete sealing layer and leading to sealing failure.

Method used

The structure adopts a design that first fills the cavity with foam and then covers it with water-retaining adhesive. By optimizing the layout and flow structure of the foam and water-retaining adhesive, it is ensured that the foam first fills the cavity, and the water-retaining adhesive flows and covers the cavity at high temperature to form a secondary sealing layer. The flow path of the water-retaining adhesive is controlled by the water-retaining adhesive baffle and the flow slope to form a tiered seal.

Benefits of technology

It achieves tiered sealing of the cavity, improving sealing reliability and uniformity, ensuring sealing effect, and has a high degree of structural integration, adapting to existing automotive manufacturing processes and reducing costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224528581U_ABST
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Abstract

The utility model relates to the technical field of automobile body sealing, aims at solving the sealing failure problem that the existing expansion sealant block foamed glue filling is not easy to be dense, and the water blocking glue covers unevenly, provides a kind of water blocking sealant block structure for vehicle internal and external cavity, it includes the skeleton installed in sheet metal inside, the skeleton below is equipped with foamed glue, and the water blocking glue fixed column is equipped above, and there is water blocking glue flow slope on the skeleton top, and also be equipped with water blocking glue baffle, foamed glue baffle.Working, after the heating of coating drying room, foamed glue first expands and fills the clearance between part and sheet metal to form preliminary sealing, under high temperature, water blocking glue melts, flows down along flow slope, covers foamed glue body to form secondary sealing layer.The structure realizes double sealing guarantee, and water blocking glue covers evenly, and structure integration is easy to install, adapts to existing process, and the cost is low.
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