Utility Vault Adapter Structure for No-Dig Cable Upgrades
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Solution Overview
Problem
Existing vault and pedestal designs for underground electrical connections are complex, costly to manufacture and maintain, and require extensive digging to add new utility lines, complicating installations and upgrades.
Innovation Solution
An upgradeable vault design with a vault adaptor that simplifies transitions to a pedestal housing, reducing parts and labor costs by eliminating split lids and plugs, and allowing easy addition of utility lines through accessible doors without full vault excavation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a complex multi-purpose lid assembly with split cover plates and plugs is used for grade level box upgrades, then the pedestal housing can be mounted, but the manufacturing cost, installation complexity, and maintenance cost increase significantly
Solution Approach 1:
The lid assembly is divided into a stationary base portion and a removable cover portion, allowing the base to remain permanently installed while only the cover needs to be accessed or replaced for maintenance and upgrades
Solution Approach 2:
The pedestal mounting functionality is extracted from the complex multi-purpose lid assembly and integrated directly into the simplified base portion, allowing the cover to be a simple protective element rather than a multi-functional component
2Adaptability or versatility
If extensive excavation is performed to add new utility lines to existing vaults, then new connections can be made, but the labor time, installation cost, and disruption increase
Solution Approach 1:
The base portion is pre-configured with multiple pre-formed openings and integrated cable access features at different heights and angles during initial installation, so that future utility lines can be added by simply routing cables through these pre-prepared openings without excavation
Solution Approach 2:
The base portion is designed as a universal platform with multiple openings and cable management features that can accommodate various types of utility lines (electrical, communications, data) and different routing configurations, making it adaptable to future expansion needs
3Adaptability or versatility
If complex multi-component lid assemblies with multiple plugs and cover plates are used, then pedestal mounting is achieved, but the manufacturing cost and inventory maintenance cost increase
Solution Approach 1:
The pedestal mounting features, cable access openings, and structural support functions are merged into a single integrated base portion, eliminating the need for separate plugs, cover plates, and mounting brackets that were required in previous multi-component designs
Solution Approach 2:
The removable cover portion is designed as a simple, inexpensive component that can be easily replaced or accessed when needed, while the expensive base portion with all the integrated features remains permanently installed
Data Source
AI summary
An underground electrical utilities vault and distribution enclosure system having a grade level box having an upper opening facing an interior region for containing a below-ground electrical utility cable, a removable lid adapted for mounting to the opening in the grade level vault, and a pedestal housing, the pedestal housing having a vault adapter configured for replacing the removable lid for access to the interior region of the grade level vault that removably mounts in the upper opening, and an cover positioned over the adapter, the adapter and the vault having slidable doors covering openings to provide access to add additional electrical utility cables to the enclosure.