Adjustable-Angle Grease Gun for Confined Grease Feeding
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Solution Overview
Problem
Conventional pneumatic grease guns have a fixed angle between the handle and grease barrel, limiting their usability in confined or varied working spaces during grease application operations.
Innovation Solution
An adjustable operating angle mechanism is introduced, allowing the grease barrel and gun body to pivot relative to each other via a positioning unit with a movable positioning member and a positioning ring, enabling adjustment of their angle to accommodate different operating postures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the angle between the handle and grease barrel is fixed, then the structural simplicity is maintained, but the adaptability to different working spaces is reduced
Solution Approach 1:
The grease barrel is designed to be pivotally connected to the gun body, allowing the angle between them to be adjusted dynamically. The positioning unit with positioning cavities and positioning member enables the grease barrel to be fixed at different angles relative to the gun body, transforming the rigid fixed-angle structure into an adjustable dynamic structure that adapts to various working spaces.
2Ease of operation
If the grease barrel is pivotally connected to allow angle adjustment, then the ease of operation in confined spaces is improved, but the device complexity increases due to additional positioning mechanisms
Solution Approach 1:
The positioning unit is designed to be manually operated by the user through the positioning member, which engages with the positioning cavities to self-lock the grease barrel at the desired angle. The spring-loaded mechanism automatically maintains the positioned state without requiring additional actuators or complex control systems, making the system self-sufficient and easy to operate.
Data Source
AI summary
A grease gun with an adjustable operating angle includes: a grease barrel having a first annular assembling portion and a first annular pivot portion; a gun body having a second annular assembling portion facing the first annular assembling portion and a second annular pivot portion to be pivotally disposed on the first annular pivot portion; a positioning ring fixed to the second annular assembling portion and having annularly arranged positioning cavities and facing the first annular assembling portion; and a positioning unit having a positioning member movable between a locked position and a release position, and the positioning member having a positioning portion to be inserted into or disengaged from the positioning cavities. The grease barrel and the gun body can be rotated and fixed relative to each other after rotation to adjust the angle between the two, which consequently reduces the space limitation on the grease feeding operation.