Adjustable-Angle Soldering Iron Handle Locking Mechanism
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Solution Overview
Problem
Typical soldering irons lack adjustable relative angles between the heated tip and handle, limiting optimal welding angles during operation.
Innovation Solution
A hand-held heating tool design featuring a handle unit, pivot unit, positioning unit, and heating unit, where the positioning unit allows for adjustable angles between the handle and pivot units through a mechanism of engaging and disengaging positioning grooves and an elastic member, enabling the user to set and lock desired angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the relative angle between the tip and handle is fixed, then the device structure is simple, but the user cannot achieve an optimal welding angle during operation
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed angle structure into an adjustable one. The pivot unit allows the heating unit to rotate relative to the handle unit, enabling dynamic angle adjustment. The positioning unit with multiple positioning grooves provides discrete angle options, while the elastic member enables smooth transitions between positions. This resolves the contradiction by making the device adaptable to different welding angles while maintaining reasonable structural complexity through modular design.
2Ease of operation
If an adjustable angle mechanism is added, then optimal welding angles can be achieved, but the device structure becomes more complex
Solution Approach 1:
The patent applies segmentation by dividing the angle adjustment function into distinct components: the pivot unit for rotation, the positioning unit with multiple positioning grooves for discrete angles, and the elastic member for actuation. This modular segmentation allows each component to perform its specific function efficiently, making the overall adjustment mechanism easier to operate while keeping the structural complexity manageable through functional decomposition.
Solution Approach 2:
The elastic member serves as an intermediary between the user's manual input and the positioning mechanism. It translates linear motion of the control member into rotational movement of the pivot unit, providing a smooth and controlled adjustment experience. This intermediary mechanism simplifies operation by decoupling the user's direct control from the complex positioning requirements, reducing the perceived device complexity.
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
Enables the user to adjust and lock the relative angle between the handle and heating units, providing optimal welding angles and improving operational efficiency.
Implementation Method 1
an elastic member elastically mounted between the control member and the abutment section
Implementation Method 2
Heating is often achieved electrically, by passing an electric current through a resistive heating element
Data Source
AI summary
A hand-held heating tool includes a handle unit, a pivot unit, a positioning unit, and a heating unit. The handle unit has a recess and a positioning portion. The pivot unit is pivotally connected to the handle unit and has a guiding groove and an abutment section. The positioning unit includes a positioning member, a control member, and an elastic member arranged between the control member and the abutment section. The control member is movably arranged in the guiding groove to actuate the positioning member to move relative to the recess so that the positioning member is selectively engaged with the positioning portion for adjusting a relative angle between the handle unit and the heating unit.