Dual-Use Angle Grinder Guard for Debris Containment
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Solution Overview
Problem
Traditional angle grinder guards have limited debris containment, leading to splash-out issues and safety hazards, and existing detachable solutions face stability and convenience problems with frequent assembly and disassembly.
Innovation Solution
A dual-use guard design featuring a semicircular or fan-shaped base with an enclosure, a small cut-circle second guard, and a hoop connecting portion, which allows easy assembly and disassembly, effective debris containment, and reduced interference with grinding materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a traditional semicircular guard with axial baffle is used, then the structure is simple, but debris can easily splash out from the side opening increasing safety hazards
Solution Approach 1:
The guard is divided into multiple functional segments: a first guard for basic protection, a second guard shaped like a small cut circle for side debris containment, and a connecting portion for attachment. This segmentation allows each part to perform its specific function effectively while maintaining overall structural simplicity.
Solution Approach 2:
The design transitions from a two-dimensional semicircular guard to a three-dimensional structure by adding the second guard that extends laterally. This dimensional enhancement creates effective side barriers against debris splash-out while preserving the simplicity of the original guard concept.
2Object-affected harmful factors
If a detachable cover is added to block debris, then debris containment is improved, but frequent assembly and disassembly causes inconvenience and connection stability issues
Solution Approach 1:
The second guard is integrally combined with the first guard through the connecting portion, forming a unified protective structure. This merging eliminates the need for separate detachable covers while maintaining effective debris containment, thereby improving operational convenience and connection stability.
Solution Approach 2:
The integrated guard structure serves multiple functions simultaneously: the first guard provides primary protection, the second guard blocks side debris, and the connecting portion enables secure attachment. This multi-functionality eliminates the need for separate detachable components while achieving comprehensive debris containment.
3Object-affected harmful factors
If the guard area is increased to block more debris, then debris containment is improved, but interference with grinding materials increases
Solution Approach 1:
The second guard is strategically positioned and shaped like a small cut circle to provide localized protection specifically where side debris splash-out occurs. This localized approach blocks debris effectively while minimizing the overall guard area and reducing interference with grinding materials in other regions.
Solution Approach 2:
Instead of creating a complete enclosed structure that would fully contain debris but interfere with grinding operations, the design uses a partial structure with the second guard that provides sufficient debris blocking capability while leaving adequate space for material access and operation.
Data Source
AI summary
A dual-use guard of an angle grinder includes a first guard, a connecting portion, and a second guard, where the first guard includes a semicircular or fan-shaped base and an enclosure arranged on an edge of the base, the enclosure extends towards one side of the base by a set length, an arc-shaped notch allowing a spindle of the angle grinder to penetrate through is formed in the center of the base, an extension raised towards a side away from the enclosure is arranged at the notch of the base, and the connecting portion connected to the angle grinder is fixedly arranged on the extension of the base. The second guard is fixedly arranged on a side, away from the base, of the enclosure and shaped like a small cut circle. Debris can be effectively prevented from splashing out from the side face of the guard.