Interlocking In-Ground Meter Box Panels
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Solution Overview
Problem
Conventional in-ground utility meter boxes are prone to structural weakness due to side joints that allow independent migration under soil forces, making them less effective in withstanding external loads and preventing box migration.
Innovation Solution
The meter box features side and end panels with end-to-end interlocking joints that increase strength under tension, combined with external surface ribbing to resist lateral movement, and a collapsible, nestable design for compact transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional cylindrical or cuboid meter boxes are used, then ease of manufacture is improved, but strength and resistance to migration under soil forces deteriorate
Solution Approach 1:
The meter box is divided into multiple panels (side panels and end panels) that can be manufactured separately and then assembled together using interlocking joints. This segmentation allows each panel to be optimized for manufacturing while the assembled structure gains enhanced strength through the joint design that utilizes soil pressure to tighten connections.
2Ease of operation
If conventional meter boxes with separate joints are used, then ease of assembly is improved, but stability and resistance to migration under soil forces deteriorate
Solution Approach 1:
The interlocking joints merge the side panels and end panels into a unified structure where the joining elements are integrated into the panel assembly process. The joints are designed to automatically tighten and lock when soil pressure is applied, combining ease of assembly with enhanced stability and resistance to migration.
3Strength
If rigid non-collapsible meter boxes are used, then strength and stability are improved, but ease of transport and storage deteriorate
Solution Approach 1:
The meter box transitions from a rigid static structure to a dynamic collapsible structure. The panels can be collapsed and nested when not in use, making them easy to transport and store. When installed, the structure becomes rigid and stable, utilizing the interlocking joints and surface ribbing to resist migration and external forces.
Data Source
AI summary
An AMI/AMR in-ground meter box, including first and second side panels, each having an interior side and an exterior side; and first and second end panels, each having an interior side and an exterior side; wherein each of said side panels and end panels include a generally rectangular planar portion having a top edge, a bottom edge, a first interlocking end having a plurality of male elements and female slots, an arcuate second end having a 90-degree bend which forms a corner of the assembled meter box and terminating in an interlocking end having a plurality of male elements and female slots configured to interlock with paired male elements and female slots in said first interlocking end.