Rotating Lever Screw Tool for Faster Tightening and Loosening
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Solution Overview
Problem
The method of using a T-handle hex key for screw disassembly and assembly is not convenient and has low efficiency.
Innovation Solution
A screw assembly and disassembly tool with a handle, a first working portion, and an operating portion featuring a first operating lever that can rotate between positions to drive the working portion, allowing for efficient screw tightening and loosening by adjusting the lever's position based on the required force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a T-shaped hex key is used with a fixed handle and hexagon wrench, then the structure is simple and easy to manufacture, but the operation convenience and efficiency are poor
Solution Approach 1:
The patent applies the dynamics principle by making the operating portion rotatable relative to the handle. The operating portion can rotate between a first position (extending away from the handle) and a second position (rotated towards the handle), transforming the static T-shaped structure into a dynamic one that adapts to different operational needs, thereby improving operation convenience without excessive complexity
Solution Approach 2:
The patent segments the tool into distinct functional portions: a handle, a working portion, and an operating portion that can rotate independently. This segmentation allows each part to perform its specific function optimally while maintaining overall structural simplicity, resolving the contradiction between operational convenience and structural complexity
2Force
If the operating portion is extended away from the handle, then the leverage and force application are improved, but the comfort when gripping the handle deteriorates due to the operating portion abutting against the user's palm
Solution Approach 1:
The operating portion's ability to rotate dynamically between positions resolves this contradiction. When high leverage is needed, it extends away from the handle; when gripping comfort is needed, it rotates towards the handle to clear the user's palm, providing both leverage and comfort at different times
3Productivity
If the operating portion is always extended for quick rotation, then the disassembly efficiency is improved, but the force required for initial loosening or final tightening cannot be effectively applied
Solution Approach 1:
The dynamic rotation capability allows the user to switch between configurations: extending the operating portion for high-speed rotation during mid-disassembly, and rotating it towards the handle for forceful application during initial loosening or final tightening, thus achieving both efficiency and force capability
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
Enhances screw tightening and loosening efficiency by allowing quick disassembly and assembly with reduced user effort, improving comfort and convenience.
Implementation Method 1
the operating portion comprises a first operating lever, the first operating lever is connected with a side of the handle away from the first working portion, and the first operating lever is able to rotate at least between a first position and a second position
Implementation Method 2
when the first operating lever is rotated to the second position, the first operating lever deflects to one side, so that when the user grips the handle, an end of the first operating lever away from its rotation connection point with the handle does not abut against the user's palm of the hand
Data Source
AI summary
A screw assembly and disassembly tool includes a handle, a first working portion and an operating portion; the first working portion is connected with the handle, an end of the first working portion is configured to cooperate with a slot of a screw head; the operating portion has an operation state and a stowed state, the operating portion includes a first operating lever connected with a side of the handle, the first operating lever is able to rotate at least between a first position and a second position; in the operation state, the first operating lever is located at the first position, the first operating lever is rotated to drive the first working portion to rotate; when the operating portion is turned from the operation state to the stowed state, the first operating lever is rotated from the first position towards the handle, and rotated to the second position.