Detachable Vacuum-Adhesion Attachment for Secure Power Tool Holding
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Solution Overview
Problem
Existing power tools with vacuum adhesion systems suffer from user fatigue due to the weight and vibrations, and there is a need for improved convenience and efficiency in attaching and detaching the vacuum adhesion mechanism.
Innovation Solution
A detachable vacuum-adhesion attachment for power tools that includes a suction part, vacuum pump, and a manually operated valve, allowing for secure attachment to a work surface and reducing the need for manual holding force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vacuum-adhesion attachment is integrated with the power tool, then the power tool can be securely held against the work material, but the device complexity increases
Solution Approach 1:
The vacuum-adhesion attachment is designed as a separate, detachable unit that can be mounted on the power tool. This segmentation allows the vacuum pump, suction part, and valve to be housed in a dedicated attachment body rather than integrating them directly into the power tool housing, thereby reducing overall device complexity while maintaining secure holding capability.
Solution Approach 2:
The attachment main body serves multiple functions: it houses the vacuum pump, provides the suction part for adhesion, contains the valve mechanism, and provides mounting interfaces for both the power tool and work material. This multi-functionality reduces the need for separate components, effectively managing complexity while achieving reliable holding.
2Ease of operation
If the vacuum pump is housed in the attachment main body, then the attachment can be detached from the power tool, but the attachment complexity increases
Solution Approach 1:
The vacuum pump, suction part, and valve are merged into a single integrated attachment main body unit. This consolidation simplifies the detachable mounting process by providing a single self-contained attachment that can be mounted and removed as one unit, rather than requiring separate components for each function.
3Reliability
If the valve is normally closed to block outside air, then vacuum is maintained in the chamber, but the ease of operation for releasing vacuum decreases
Solution Approach 1:
The valve is designed to automatically return to its closed state after being opened for a brief moment. The user only needs to manually manipulate the valve briefly to open it for releasing vacuum, and the valve's spring mechanism automatically closes it afterward. This self-service design maintains vacuum reliability while minimizing the operational effort required for release.
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
The solution reduces user fatigue by allowing the power tool to be securely held in place with minimal manual effort, enhancing convenience and accuracy in operations.
Implementation Method 1
a suction part (67), which has a chamber (670), and is configured to be adhered to a surface of a work material when the chamber (670) is brought to a vacuum (reduced pressure) state by driving of the vacuum pump (71)
Data Source
AI summary
A vacuum-adhesion attachment for a power tool includes an attachment main body, a vacuum pump, a suction part, and a valve. The attachment main body is detachably mountable on a tool main body of the power tool and houses the vacuum pump. The suction part has a chamber in fluid communication with the vacuum pump and is configured to be adhered to a surface of a work material in response to the chamber being brought to a reduced pressure state by driving of the vacuum pump. The valve is in fluid communication with the chamber of the suction part. The valve, which is normally in a closed state to block a flow of outside air into the chamber, is configured to be manually switched by a user to an open state that permits a flow of outside air into the chamber.