Auxiliary Handle for Hex Wrenches With Adjustable Mounting Slots
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Solution Overview
Problem
Current auxiliary handles for hex wrenches are limited in size and inflexible, making them inconvenient for use with various models of hex wrenches, as they lack adjustable mounting slots to securely hold and stabilize the wrench during use.
Innovation Solution
An auxiliary handle with a housing, stem, and knob, featuring multiple mounting slots of different sizes along the stem's axial direction, a flat spring for adjustment, and a notch for secure engagement, ensuring the hex wrench does not come off or wobble, with a cylindrical housing and rotatable stem for precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed-size auxiliary handle is used, then the structure is simple, but it cannot accommodate hex wrenches of different sizes
Solution Approach 1:
The auxiliary handle is divided into a housing and a rotatable stem component. The stem can rotate independently within the housing, allowing different mounting slots to be positioned at the notch for accommodating various hex wrench sizes. This segmentation enables versatility without requiring multiple separate tools.
Solution Approach 2:
The stem is designed to be rotatable relative to the housing, transforming a static structure into a dynamic one. By rotating the stem, users can select different mounting slots to align with the notch, enabling the same auxiliary handle to adapt to different hex wrench sizes dynamically.
2Reliability
If a single mounting slot size is used, then the manufacturing is simple, but the hex wrench may wobble or come off
Solution Approach 1:
Different mounting slots are designed with different sizes and geometries to match specific hex wrench dimensions. Each slot location on the stem provides a locally optimized fit for particular wrench sizes, ensuring secure retention without wobbling while maintaining overall structural simplicity.
3Adaptability or versatility
If multiple fixed-size auxiliary handles are provided, then all hex wrench sizes can be accommodated, but the device set becomes complex and cumbersome
Solution Approach 1:
A single auxiliary handle is designed with multiple mounting slots arranged on a rotatable stem, enabling one tool to perform the function of multiple fixed-size handles. By rotating the stem, users can select the appropriate slot configuration for different hex wrench sizes, achieving universality without increasing the number of separate tools.
4Manufacturing precision
If the mounting slot size is fixed, then the manufacturing precision requirement is low, but the hex wrench does not fit tightly
Solution Approach 1:
The rotatable stem mechanism allows the mounting slots to be dynamically repositioned to achieve optimal fit precision for different hex wrench sizes. This dynamic adjustment capability ensures tight fits without requiring complex adjustable mechanisms, as the rotation itself provides the necessary configuration changes.
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 solution provides a versatile and secure auxiliary handle that accommodates hex wrenches of different sizes, preventing wobbling and easy removal, by using adjustable mounting slots and a flat spring for elastic retention, enhancing user convenience and applicability.
Implementation Method 1
The flat spring will come into contact with the bottom surface of the hex wrench and apply an elastic force to the hex wrench so that the wrench will not come off and wobble after installation
Implementation Method 2
The stem is mounted in the housing and is fixedly connected with the knob. The knob is rotatable to drive the stem to rotate around the axial direction in the housing
Data Source
AI summary
An auxiliary handle for hex wrenches includes a housing, a stem and a knob. The stem is mounted in the housing and is fixedly connected with the knob. The entire outer circumferential surface of the stem is provided with a plurality of mounting slots of different sizes along the axial direction of the stem. The right end wall surface of the housing is provided with a notch that can be connected to the mounting slots. The inner wall of the left end of the housing is correspondingly provided with a flat spring. The knob is rotatable to drive the stem to rotate around the axial direction in the housing so that one of the mounting slots connects to the notch and is opposite to the flat spring.