Electrical Conduit Fitting Retainer for Pre-Press Alignment
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Solution Overview
Problem
Existing electrical conduit fittings lack a reliable method for securely and removably retaining electrical conduits before press connection, which can lead to misalignment and instability during installation.
Innovation Solution
The electrical conduit fitting incorporates a conduit retainer with detents that releasably grip and axially align the conduit, allowing for secure retention before press connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If no conduit retainer is used, then the device complexity is reduced, but the conduit alignment and retention reliability deteriorates
Solution Approach 1:
The conduit retainer is divided into multiple independent detents (first detent, second detent, etc.) that can engage with the conduit at different positions. This segmentation allows the retainer to provide reliable retention through multiple engagement points while keeping each individual detent结构简单 and the overall device complexity manageable.
Solution Approach 2:
The conduit retainer acts as an intermediary component between the conduit and the fitting body, providing a mechanical interface that ensures proper alignment and retention. This intermediary structure resolves the contradiction by adding a dedicated alignment mechanism without requiring complex integration into the main fitting body.
2Manufacturing precision
If a conduit retainer with multiple detents is used, then the conduit alignment precision is improved, but the device complexity increases
Solution Approach 1:
Each detent is designed with specific local geometric features (such as angled surfaces, engagement profiles) that are optimized for their particular alignment function. This local quality approach allows each detent to contribute to axial alignment precision through its specialized geometry, achieving high manufacturing precision without requiring an overly complex overall structure.
Solution Approach 2:
The detents are pre-configured in specific positions and orientations within the fitting body before conduit installation. This preliminary arrangement ensures that when the conduit is inserted, the detents automatically engage at predetermined locations to provide precise axial alignment, eliminating the need for complex real-time adjustment mechanisms.
3Reliability
If the conduit retainer firmly grips the conduit, then the retention reliability is improved, but the ease of conduit removal deteriorates
Solution Approach 1:
The detent-conduit engagement is designed to be dynamically adjustable. The detents can flex or deform slightly to accommodate conduit insertion and provide firm gripping force for retention, but this same flexibility allows the conduit to be removed by applying sufficient force to overcome the detent engagement. This dynamic behavior resolves the contradiction between firm retention and ease of removal.
Solution Approach 2:
The system is designed with the understanding that removal will occur before press connection. The detents provide preliminary firm gripping to ensure proper retention during installation and alignment, but since removal is intended to happen before the permanent press connection is made, the ease of removal is acceptable within this temporal context.
Data Source
AI summary
A method of securing an electrical conduit in an electrical conduit fitting including releasably gripping and removably retaining the electrical conduit in the electrical conduit fitting with a conduit retainer disposed in a passage of the electrical conduit fitting prior to press connecting the electrical conduit fitting to the electrical conduit to fixedly attach the electrical conduit fitting to the electrical conduit.