Pipe Spray Gun Holder With Retracting Arms for 90° Bends
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Solution Overview
Problem
Existing tools for internal pipe coating struggle with manual height adjustments for varying diameters, difficulty in navigating bends and angular parts, and inability to withstand high pressure painting operations, especially in pipes with diameters less than 10 inches.
Innovation Solution
A tool with retracting arms that automatically adjust to different pipe diameters, featuring a central hub with projections and pivotable arms equipped with rollers and springs, allowing it to maneuver within curves and angles up to 90° while withstanding high pressure painting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual maneuvering of rotary paint spray guns is used, then the tool can be operated in pipes, but the operation becomes cumbersome and coating quality suffers due to uneven spraying
Solution Approach 1:
The retracting arms automatically adjust to different pipe diameters and positions without manual intervention, allowing the tool to self-adapt to the pipe geometry while maintaining stable spray gun positioning for uniform coating application
Solution Approach 2:
The retracting arms provide dynamic adjustment capability, allowing the tool to automatically adapt its configuration to varying pipe diameters and bend angles, ensuring both ease of operation and coating uniformity across different pipe sections
2Stability of the object's composition
If fixed height support tools are used, then the spray gun can be held stable, but the tool cannot navigate bends and angular parts of pipes
Solution Approach 1:
The retracting arms provide dynamic adjustment capability, allowing the tool to automatically adapt its configuration to varying pipe diameters and bend angles, ensuring both ease of operation and coating uniformity across different pipe sections
Solution Approach 2:
The tool changes its physical parameters (arm extension length) in response to varying pipe geometries, enabling it to navigate bends and angular parts while maintaining spray gun stability through the retracting mechanism
3Adaptability or versatility
If scissor-like adjustable arm tools are used, then the tool can adapt to different diameters, but the adjustment mechanism becomes complex and requires manual intervention
Solution Approach 1:
The retracting arms automatically adjust to different pipe diameters and positions without manual intervention, allowing the tool to self-adapt to the pipe geometry while maintaining stable spray gun positioning for uniform coating application
Solution Approach 2:
The patent removes the complex manual adjustment mechanisms (threaded screws, manual expansion legs) from the system, replacing them with automatic retracting arms that self-adjust to pipe geometry, thereby simplifying the overall device structure
4Adaptability or versatility
If existing tools are used for pipes with diameters less than 10 inches, then coating can be applied, but the tools cannot withstand high pressure painting operations
Solution Approach 1:
The retracting arms provide dynamic adjustment capability, allowing the tool to automatically adapt its configuration to varying pipe diameters and bend angles, ensuring both ease of operation and coating uniformity across different pipe sections
Solution Approach 2:
The tool is designed with a compact, rounded central hub and curved arm structures that can navigate tight bends in small diameter pipes while maintaining structural integrity to withstand high pressure painting operations
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 uniform coating of internal pipe surfaces, including those with diameters between 2 and 10 inches, by automatically adjusting to varying diameters and navigating complex pipe geometries without manual intervention, ensuring high-quality coatings and withstanding high pressure operations.
Implementation Method 1
first and second springs that connect second ends of the first and second retracting arms to the first and second fixed pins, respectively. The retraction mechanisms facilitate a pivotal movement of the first and second retracting arms
Implementation Method 2
Each retracting arm includes a roller attached a first end thereof. The tool is movable inside the pipe and carries the spray painting gun inside the pipe
Data Source
AI summary
Disclosed herein is a tool for holding a spray painting instrument, such as a painting gun for painting an internal surface of a pipe. In particular, the inventive tool is ideal for painting the interior of curves and angles in a pipe and is capable of moving through and uniformly painting up to 90 degree angles of pipes or hollow tubes. The tool has a hollow central tube for carrying a spray-painting gun and at least two projections extending outwardly from an outer surface of the hollow tube. A retracting arm assembly is provided on each projection. Each retracting arm assembly includes first and second retracting arms and a corresponding force exertion mechanism. In operation, when the tool is inserted inside the pipe, each retracting arm touches the internal surface of the pipe due to an outward force exerted thereon. The tool is movable inside the pipe and adjusts automatically to different pipe diameters. The tool can be used manually or in an automated fashion to push and pull the paint gun and paint the interior of a pipe.