Expandable Pipe Spinning Accessory for Drill-Driven Pipe Prep
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Solution Overview
Problem
Current methods for preparing copper pipes, such as cutting, reaming, and sanding, are laborious and time-consuming, especially when dealing with long or large pipes that are difficult to handle manually.
Innovation Solution
A power drill accessory that can latch onto the inner walls of pipes and circumferentially rotate them, featuring a first and second knurled assembly that selectively expand to engage the pipe wall, allowing the drill to efficiently spin and prepare pipes of various diameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual rotation of copper pipe is used for cutting, reaming, and sanding, then the user can perform these tasks with basic tools, but the process becomes laborious and time-consuming
Solution Approach 1:
The patent replaces the manual mechanical rotation system with a power drill-driven rotational system. The accessory attaches to the power drill, which provides the rotational force previously generated by manual hand rotation, thereby increasing productivity while reducing manual labor effort
Solution Approach 2:
The patent introduces an intermediary accessory device that couples between the power drill and the copper pipe. This intermediary component includes expansion elements that engage the pipe wall and transmit rotational motion from the drill to the pipe, enabling efficient pipe preparation without direct manual handling
2Adaptability or versatility
If the copper pipe is too long and large for manual handling, then the pipe can accommodate larger diameter applications, but the user cannot rotate or spin the pipe effectively
Solution Approach 1:
The accessory acts as an intermediary that bridges the gap between the power drill and large-diameter pipes. The expansion elements engage the inner wall of pipes with various diameters, allowing the power drill to rotate even large pipes that would be impossible to rotate manually
Solution Approach 2:
The patent designs the accessory with adjustable expansion elements that can adapt to pipes of different diameters. This universal design allows the same accessory to work with various pipe sizes, from small to large diameters, maintaining ease of operation across different application scenarios
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
Enables efficient and streamlined preparation of pipes by reducing manual labor and handling challenges, facilitating tasks like cutting, reaming, and sanding, and applicable to pipes of different materials and sizes.
Implementation Method 1
a first knurled assembly and a second knurled assembly that selectively expand laterally to engage the inner wall of pipes
Data Source
AI summary
A pipe spinning power drill accessory a stem, shaft, first knurled assembly, second knurled assembly, first state, and second state. The first knurled assembly and the second knurled assembly are each cylindrically shaped. The first knurled assembly is centrally affixed to the stem. The shaft is centrally affixed to the first knurled assembly opposite the stem. The second knurled assembly is centrally affixed to the shaft opposite the first knurled assembly. The first knurled assembly and the second knurled assembly each selectively expand laterally. In the first state, the first knurled assembly and the second knurled assembly are each not laterally expanded. In the second state, at least one of the first knurled assembly and the second knurled assembly are laterally expanded. The stem is configured to be inserted into a chuck of a power drill. The stem is cross-sectionally hexagonally shaped and includes a region of decreased diameter.