Duct Access Door With Rotating Locking Clips
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for accessing and resealing ducts are inefficient, leading to gaps, damage, and loss of parts, particularly in frequent industrial and commercial settings, where tape can peel off and sharp edges pose hazards, and loose components are easily misplaced.
Innovation Solution
An access panel with a base plate and rotatable fasteners featuring locking clips and a gasket for secure sealing, along with a handle and rope seal for easy installation and reusability, designed to fit various duct profiles and temperatures, reducing sharp edges and ensuring a tight seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tape is used to reseal the duct opening, then the opening can be closed temporarily, but the tape can peel away exposing gaps and spaces between the opening and the resealing
Solution Approach 1:
The sealing function is segmented into multiple components: a gasket positioned between the base plate and duct system, and locking clips that engage with the duct opening. This segmentation allows each component to perform its specific sealing function reliably, preventing the peeling issue associated with single-piece tape sealing.
Solution Approach 2:
The locking clips are designed with curved engagement surfaces that conform to the duct opening geometry. This curvature ensures continuous contact and prevents gaps from forming, addressing the peeling problem by maintaining uniform sealing pressure around the entire opening perimeter.
2Ease of operation
If a portion of the duct is cut out for access, then easy access to the duct is achieved, but sharp corners are created that can cut technician arms and hands
Solution Approach 1:
The access panel with base plate serves as an intermediary component between the technician and the duct opening. It provides a protective barrier that eliminates direct contact with sharp duct edges while maintaining full access functionality for duct inspection and cleaning operations.
Solution Approach 2:
The gasket acts as a flexible sealing layer between the rigid base plate and duct system. This flexible element conforms to the duct surface while protecting against sharp edges, combining safety with effective sealing.
3Strength
If other products use nuts or bolts for securing, then strong attachment is achieved, but loose parts are easily lost or misplaced and left in the duct
Solution Approach 1:
The locking clip and fastener functions are merged into a single integrated component. The locking clip is formed as one piece with the fastener body, eliminating separate nuts and bolts. This integration ensures all components remain attached to the access panel during installation and removal, preventing loss of parts.
Solution Approach 2:
The locking clip performs multiple functions: it provides the attachment strength of a bolt, prevents part loss through integration, and enables tool-free operation. This multi-functionality replaces traditional multi-component fastening systems with a single versatile element.
4Productivity
If frequent duct inspection and cleaning occurs in industrial and commercial businesses, then maintenance is improved, but repeated taping and re-sealing creates further issues and problems
Solution Approach 1:
The access panel is designed for repeated removal and reinstallation without degradation of sealing performance. The locking clips and gasket can be recovered and reused multiple times, eliminating the cumulative damage associated with repeated tape application and removal in frequent maintenance scenarios.
Data Source
AI summary
An access panel for an opening in a duct is provided. The access panel includes an exterior and an interior. The access panel further includes a section positioned on the interior and having a profile substantially corresponding to the opening in the duct. A plurality of fasteners is positioned about the section. Each fastener has a clip configured to move to a position defined to extend away from the profile of the section on the interior. When the access panel is positioned with the section on the interior against the opening in the duct and as the fasteners are moved to the locking position the clips rotate to extend over and to secure the duct edge adjacent to the opening to the interior of the access panel.