Anti-collapse structure at corner of automobile sealing strip, automobile sealing strip and automobile

By setting an anti-collapse structure at the corner of the sealing strip, and using threaded engagement to drive the rotating component to rotate and store energy, the corner of the sealing strip can be automatically restored. This solves the problems of easy collapse of the sealing strip corner and excessive resistance when closing the door, and improves the anti-collapse performance and sealing effect of the sealing strip.

CN224375304UActive Publication Date: 2026-06-19WUHAN JIANGXIA CHUNENG AUTOMOBILE TECHNOLOGY R&D CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN JIANGXIA CHUNENG AUTOMOBILE TECHNOLOGY R&D CO LTD
Filing Date
2025-08-19
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing technology addresses the contradiction between the tendency of automotive weatherstripping to collapse at corners and excessive resistance when the door closes. While enhancing support performance, it also affects the flexibility of the weatherstripping and the smoothness of door closure.

Method used

An anti-collapse structure is installed inside the bubble tube at the corner of the sealing strip, including a mounting base, a pressure receiving component, a transmission screw, a rotating assembly, and an elastic reset element. The rotating assembly is driven to rotate and store energy through threaded engagement, so as to realize the automatic recovery of the corner of the sealing strip, which enhances the support while maintaining flexibility.

Benefits of technology

It effectively solves the contradiction between the easy collapse of the sealing strip at the corner and the excessive resistance when the door closes, maintains the sealing effect and the comfort of closing the door, prevents collapse and deformation, and improves the anti-collapse performance of the sealing strip.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224375304U_ABST
    Figure CN224375304U_ABST
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Abstract

This utility model proposes an anti-collapse structure for the corner of an automotive sealing strip, an automotive sealing strip, and an automotive device, relating to the field of automotive technology. The anti-collapse structure includes a mounting base, a pressure receiving component, a transmission screw, a rotating assembly, and an elastic reset element. The mounting base is fixed inside the sealing strip's bubble tube, and the pressure receiving component is located on the pressure-bearing side of the bubble tube. The transmission screw connects to the pressure receiving component and has external threads. The rotating assembly is mounted on the mounting base and engages with the screw thread. The elastic reset element connects the rotating assembly and the mounting base. During operation, the pressure receiving component, under pressure, pushes the screw to move linearly, driving the rotating assembly to rotate and causing the elastic element to store energy. After the pressure is released, the elastic element, through the rotating assembly, drives the screw and the pressure receiving component to reset. This structure both buffers the impact force of the door closing and ensures that the corner of the sealing strip automatically recovers, effectively solving the contradiction between corner collapse and excessive closing resistance.
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