Corrugated Pipe Sealing Insert With Ribs and Anti-Rotation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing corrugated pipe fittings lack tightness and require additional seals to prevent liquid ingress, resulting in a bulky structure, and existing solutions do not effectively address the need for a compact and secure connection to a connection geometry.
Innovation Solution
A sealing insert for a corrugated-pipe screw fastening system featuring a cutout with partially circumferentially extending ribs and an anti-rotation structure, which engages with the corrugated pipe and screw fastening body to provide a secure and compact connection, preventing rotation and ensuring sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional seals are introduced to ensure tightness against liquid ingress, then sealing performance is improved, but device complexity and structure size increase
Solution Approach 1:
The sealing function is merged with the retaining sleeve by integrating sealing elements (O-rings, elastomeric seals) directly into the sleeve structure. The retaining sleeve simultaneously performs mechanical retention of the corrugated pipe and provides sealing against liquid ingress, eliminating the need for separate sealing components and reducing overall device complexity.
Solution Approach 2:
The retaining sleeve is designed as a multi-functional component that combines retention, sealing, and positioning functions. It features both circumferential ribs for mechanical engagement with corrugations and integrated sealing elements for liquid tightness, allowing a single component to address multiple requirements that previously demanded separate parts.
2Reliability
If a cable screw fastening system is provided downstream of the fitting, then sealing requirements are met, but the structure becomes very large
Solution Approach 1:
The sealing function is integrated directly into the fitting body through the retaining sleeve with built-in sealing elements, eliminating the need for a separate downstream cable screw fastening system. The sleeve's sealing elements (O-rings, elastomeric seals) provide the necessary liquid tightness within the main fitting structure, reducing overall system volume.
3Ease of manufacture
If conventional fittings are used for corrugated pipes, then basic connection is achieved, but tightness against liquid ingress is not ensured
Solution Approach 1:
The fitting integrates both mechanical retention and sealing functions into a single unified structure. The retaining sleeve combines circumferential ribs for pipe retention with integrated sealing elements for liquid tightness, achieving both ease of installation and reliable sealing without requiring multiple separate components or complex assembly procedures.
Data Source
AI summary
A sealing insert for a corrugated-pipe screw fastening system includes a cutout for receiving a corrugated pipe, first and second end faces, a first external wall portion having a first outer diameter, and a second external wall portion having a second external diameter. An internal wall delimiting the cutout includes at least one partially circumferentially extending rib. The first external wall portion is adjacent to the first end face and extends along a longitudinal axis of the sealing insert up to the second external wall portion. The second external wall portion is adjacent to the second end face and extends along the longitudinal axis up to the first external wall portion. The first outer diameter is larger than the second outer diameter. An anti-rotation structure is arranged on an outer shell of the sealing insert. The anti-rotation structure is associated with the second external wall portion.