Corrugated Pipe Coupler with Soft Metal Sealing and Grounding
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Solution Overview
Problem
Conventional couplers for corrugated pipes damage the fastening member due to compression and fail to ground lightning, leading to poor sealing and potential damage from electrical discharges.
Innovation Solution
A coupler design featuring a softer metal sealing member and a metal sleeve with a grounding portion that enters the coated layer of a composite member, preventing damage from fastening forces and allowing lightning discharge through a braided net.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cap nut is fastened to compress the corrugated pipe, then the corrugated pipe is securely fixed in the coupler, but the fastening member is damaged due to compression of the pipe end portion
Solution Approach 1:
A sealing member made of softer metal material is introduced as an intermediary between the corrugated pipe end portion and the fastening member. This sealing member deforms under compression to provide sealing while protecting the fastening member from damage, thus resolving the contradiction between achieving secure fixation and preserving fastening member integrity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution ensures a sealed connection without damaging the fastening member and protects the corrugated pipe from lightning by grounding electrical charges, maintaining a secure and leak-proof seal.
Implementation Method 1
a grounding portion pressed by means of the pressing slope surface in such a manner as to enter the resin coated layer of the composite member and to be grounded to the metal braided net
Implementation Method 2
grounding portion pressed by means of the pressing slope surface in such a manner as to enter the resin coated layer of the composite member and to be grounded to the metal braided net
Implementation Method 3
the corrugations of the corrugated pipe are compressed by means of a compressing member, and thus, the compressing member is moved to a valley portion of the corrugated pipe
Implementation Method 4
a sealing member made of a softer metal material than the corrugated pipe... preventing the fastening member from being damaged due to the fastening force of a cap nut
Data Source
AI summary
A coupler for a corrugated pipe that is provided with a sealing member mounted inside a fastening member and made of a softer metal material than the corrugated pipe, thereby preventing the fastening member from being damaged due to the fastening force of a cap nut, and that is provided with a grounding portion formed at the front portion of a metal sleeve in such a manner as to enter a coated layer of a composite member and to be grounded to a metal braided net of the composite member when the cap nut is fastened, thereby protecting the corrugated pipe from lightning.