Pneumatic Grinder Adjustable Handle Pivot Mechanism
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Solution Overview
Problem
Conventional pneumatic grinders have fixed, non-adjustable handles that lead to operator discomfort and increased risk of occupational injuries due to improper grip postures and limited working space, necessitating potentially damaging handle detachment.
Innovation Solution
An adjustable handle structure with a handle fixing portion, packing element, and pivot element, allowing for adjustable grip angles through a threaded mechanism, enabling operators to maintain proper posture and avoid detachment-related risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the handle is fixedly fastened to the machine body, then the structural simplicity and manufacturing ease are improved, but the operator's comfort and safety deteriorate due to non-adjustable grip angles
Solution Approach 1:
The handle is transformed from a fixed structure to a dynamically adjustable one through the pivot element mechanism. The pivot element allows the handle to rotate and adjust to different angles while maintaining a secure connection to the machine body, enabling operators to find comfortable grip positions without compromising structural integrity.
2Device complexity
If the handle is fixedly fastened to the machine body, then the device complexity is reduced, but the adaptability to different grinding positions deteriorates
Solution Approach 1:
The handle assembly incorporates a pivot element that enables dynamic adjustment to different angles and positions. This allows the handle to adapt to various grinding positions and workpiece orientations while maintaining a relatively simple overall device structure through the use of a single pivot mechanism rather than multiple adjustable components.
3Reliability
If the handle is fixedly fastened, then the reliability of the connection is improved, but the risk of damage from improper grip increases
Solution Approach 1:
The pivot element creates a reliable yet flexible connection that allows the handle to adjust to proper grip angles. By enabling operators to position the handle correctly, the system maintains connection reliability while eliminating the harmful effect of damage from improper gripping positions.
4Ease of operation
If the handle is fixedly fastened, then the ease of operation is improved for simple tasks, but the loss of time for disassembly and reassembly increases
Solution Approach 1:
The adjustable handle eliminates the need for complete disassembly and reassembly by allowing continuous angle adjustment during operation. Operators can modify the handle position on-the-fly without detaching it from the machine body, saving time while maintaining ease of operation for various grinding tasks.
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 adjustable handle structure reduces operator discomfort and occupational injuries by allowing for customizable grip angles and prevents unnecessary handle detachment, enhancing operational efficiency and safety.
Implementation Method 1
a pivot element deposited in the accommodating space of the handle fixing portion which has a second threaded portion positioned correspondingly to the slot of the handle fixing portion
Data Source
AI summary
A pneumatic grinder with improved handle structure comprising a driving portion, a connecting portion, and a grinding portion wherein the connecting portion has a handle fixing portion at one side thereof that has an accommodating space to receive a pivot element wherein the handle fixing portion has a slot on the top thereof, and further, a handle is fixed with the pivot element by screwing so that the handle can be pivoted along the slot and the grip angle thereof can therefore be adjusted.