一种动态密封条及车辆
The wear-resistant layer and sealing component formed by cold die composite extrusion solve the problems of high energy consumption and environmental pollution in the production process of dynamic sealing strips, realize low-cost and high-efficiency sealing strip manufacturing, and improve sealing performance and aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- COOPER-STANDARD INVESTMENT CO LTD
- Filing Date
- 2025-09-29
- Publication Date
- 2026-07-17
AI Technical Summary
The production process of existing dynamic sealing strips involves high energy consumption and environmental pollution. In particular, the sulfides generated by the EPDM online spraying process are harmful to the environment, and the production process is complex.
The wear-resistant layer and the seal are compounded and extruded together through the same cold die, avoiding hot processing. Combined with the skeleton and seal made of thermoplastic vulcanized rubber material, low-cost and high-efficiency production is achieved.
It reduces carbon emissions, simplifies production processes, lowers manufacturing costs, improves manufacturing efficiency, and enhances sealing performance and aesthetics.
Smart Images
Figure CN224510839U_ABST
Abstract
Claims
1. A dynamic sealing strip, characterized in that, include: A skeleton (1) is configured to be located at a sheet metal stop (6), and the skeleton (1) has a certain degree of elasticity; A sealing element (2) is provided, which covers the frame (1). The sealing element (2) includes a bubble tube (21) and a connecting part (22). The bubble tube (21) can selectively seal with the sheet metal sealing surface (4). The connecting part (22) is connected to the frame (1) and is used to connect with the sheet metal stop (6) and / or the interior panel (5). Wear-resistant layer (3) is disposed on the contact surface between the seal (2) and the sheet metal sealing surface (4) and / or the interior panel (5), and the wear-resistant layer (3) and the seal (2) are jointly extruded by the same cold die.
2. The dynamic sealing strip according to claim 1, characterized in that, The frame (1) has a U-shaped cross-section with an opening and a cavity. The frame (1) includes two clamping parts (11) arranged in parallel and spaced apart, and a top (12) connected between the two clamping parts (11). The cavity is used to accommodate at least a portion of the sheet metal stop (6).
3. The dynamic seal strip of claim 2, wherein, The skeleton (1) is made of thermoplastic elastic material, and at least a portion of the skeleton (1) is provided with a flexible corrugated structure along the length of the cavity.
4. The dynamic seal strip of claim 2, wherein, The connecting part (22) has a body (225) covering the skeleton (1) and a first lip (221) connected to the body (225). One end of the first lip (221) is connected to one end of one of the two clamping parts (11) away from the top (12), and the other end of the first lip (221) extends into the cavity. The first lip (221) and the other clamping part (11) are used to clamp at least a portion of the sheet metal stop (6).
5. The dynamic seal strip of claim 4, wherein, The body (225) has an anti-rotation part (224) protruding into the cavity. The anti-rotation part (224) is located at the connection between the top (12) of the skeleton (1) and the clamping part (11) near the first lip (221).
6. The dynamic seal strip of claim 5, wherein, The connecting portion (22) further includes a second lip (222), which is disposed at the connection between the body (225) and the first lip (221). The second lip (222) is configured to extend toward the sheet metal stop (6) and abut against the sheet metal stop (6).
7. The dynamic seal strip of claim 6, wherein, The connecting part (22) also includes a third lip (223), which is connected to the body (225) and forms a receiving space for accommodating the interior panel (5).
8. The dynamic seal strip of claim 7, wherein, The sealing element (2) has a plurality of bubble tubes (21), which are fixedly connected perpendicular to the length direction of the skeleton (1).
9. The dynamic seal strip of any of claims 1-8, wherein, The seal (2) is made of thermoplastic vulcanized rubber material; and / or the color of the wear-resistant layer (3) is configured to match the color of the interior panel (5).
10. A vehicle, characterized in that, The vehicle includes a sheet metal stop (6), an interior panel (5), and a dynamic sealing strip as described in any one of claims 1-9, wherein the sheet metal stop (6) and the interior panel (5) are both sealed to the dynamic sealing strip.