Detachable Suction Plate for Plasterboard Grinding
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Solution Overview
Problem
Existing hand-held grinding tools are not easily adaptable for use with and without a suction device, particularly when grinding plasterboard walls, and lack versatility in handle configurations.
Innovation Solution
A grinding device design featuring a detachable suction plate integrated into the sanding plate, allowing conversion between a sanding device and a grinding device with a suction chamber, and compatibility with various handles, including a pivotable handle with a gimbal connection, and a dust extraction system through a side wall opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a fixed integrated suction chamber design is used, then dust extraction efficiency is improved, but device complexity and adaptability deteriorate
Solution Approach 1:
The suction chamber is designed as a detachable suction plate that can be separated from the sanding plate. This segmentation allows the suction chamber to be removed when not needed, simplifying the device for basic sanding tasks, while enabling attachment when dust extraction is required, thus providing adaptability without permanently increasing device complexity
Solution Approach 2:
The sanding plate is designed with universal attachment points that can accommodate both the detachable suction plate and various handle configurations. This multi-functionality allows the same base structure to serve multiple purposes: sanding without suction, sanding with suction, and compatibility with different handle types, thereby improving adaptability without significantly increasing overall device complexity
2Adaptability or versatility
If a detachable suction plate design is used, then adaptability is improved, but device complexity increases
Solution Approach 1:
The detachable suction plate integrates multiple functions into a single component: it forms the suction chamber, provides the dust extraction opening, and includes attachment mechanisms to connect to the sanding plate. By merging these functions into one integrated plate rather than separate components, the design achieves convertibility between sanding and grinding modes while minimizing the increase in device complexity
3Ease of manufacture
If dust extraction opening is formed by a side wall, then ease of manufacture is improved, but dust extraction efficiency may deteriorate
Solution Approach 1:
The side wall of the suction plate incorporates a dust extraction opening at a specific location optimized for dust egress. The opening is positioned and sized to maintain structural simplicity for manufacturing while ensuring adequate dust extraction capability. The local modification of the side wall provides the necessary dust extraction function without requiring complex overall redesign
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 dust extraction and easy handling during grinding operations, allowing the tool to be used effectively with or without a suction device, and adaptable to different handle configurations for enhanced usability.
Implementation Method 1
The sanding device comprises a suction chamber through which sanding dust that has entered the suction chamber through suction openings can be sucked off through a dust suction opening
Data Source
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AI summary
The device has a suction plate (1) including a suction chamber (3). The chamber is defined to narrow sides of the suction plate by side walls (4-7), to a broad side of the suction plate by a base (8) including suction holes (9), and to another broad side of the suction plate opposite to the former broad side by a grinding plate (2) supporting an actuation handle (10). The base is formed as a material-integrative component of a tray forming the side walls. The side walls form a layer aligned inwardly to the suction chamber, where an edge of the grinding plate lies on the layer.