Adjustable Crimping Pliers With Eccentric Jaw Spacing
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Solution Overview
Problem
Conventional crimping pliers are limited in their ability to adapt to different nail sizes due to a fixed jaw size, restricting their functionality to only crimping and not cutting, and are unable to efficiently pull out nails of varying sizes.
Innovation Solution
The crimping pliers incorporate a clamping assembly with a control mechanism and a rotating button mechanism, allowing the jaws to switch between clamping and open states, and adjust the distance between them to accommodate different nail sizes through an eccentric shaft and limiting structure, enabling both crimping and cutting functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the jaw size of crimping pliers is fixed, then the structure is simple and easy to manufacture, but the adaptability to different nail sizes is poor
Solution Approach 1:
The jaw structure is transformed from a fixed static configuration to a dynamic adjustable one. The rotating button mechanism allows the jaw distance to be dynamically changed by rotating the button, which drives the eccentric shaft to adjust the jaw spacing. This enables the same tool to adapt to different nail sizes without requiring multiple fixed jaw configurations.
Solution Approach 2:
The key parameter being changed is the distance between the left and right jaws. By rotating the button mechanism, the eccentric shaft changes the positional parameters of the jaws, allowing the operator to adjust the jaw spacing to match different nail cap sizes. This parameter adjustment capability directly resolves the adaptability issue.
2Adaptability or versatility
If conventional crimping pliers only have crimping function, then the device structure is simple, but the functional diversity is limited
Solution Approach 1:
The crimping pliers are designed to perform multiple functions: crimping pipe couplings and cutting various materials including nails of different sizes. The jaw structures are configured to enable both crimping operations (when jaws are closed) and cutting operations (when jaws are opened to appropriate gaps). This multi-functionality is achieved through the adjustable jaw mechanism that can accommodate different operational requirements.
Solution Approach 2:
The dynamic adjustment capability allows the tool to switch between different functional states. By adjusting the jaw distance through the rotating button mechanism, the tool can transition between crimping mode (jaws closed) and cutting mode (jaws separated by specific gap), enabling functional diversity from a single device structure.
3Adaptability or versatility
If the jaw distance is fixed, then the clamping force is stable and reliable, but the ability to accommodate different nail sizes is reduced
Solution Approach 1:
The jaw distance is changed from a fixed static parameter to a dynamically adjustable parameter. The rotating button mechanism provides controlled adjustment while maintaining stability during operation. The limiting structure ensures the adjustment remains within reliable ranges, preserving clamping stability while enabling adaptability to different nail sizes.
Solution Approach 2:
The eccentric shaft acts as an intermediary mechanism between the rotating button and the jaws. It translates the rotational motion of the button into linear displacement of the jaws, providing smooth and controlled adjustment. This intermediary mechanism ensures that the adjustment process maintains reliability while achieving the desired adaptability.
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
This design enhances the versatility of crimping pliers by allowing them to crimp and cut various pipe couplings and adapt to different nail sizes, improving their application scope and functional diversity in nail pulling operations.
Implementation Method 1
The first connecting plate is rotatably connected to the left connecting portion through the eccentric shaft. The rotating button adjusts a distance between the left connecting portion and the right connecting portion by driving the eccentric shaft to eccentrically rotate.
Data Source
AI summary
Crimping pliers include a clamping assembly including a left jaw and a right jaw, a control mechanism, and a rotating button mechanism. The left jaw includes a left connecting portion and a left head. The right jaw includes a right connecting portion and a right head. The control mechanism drives the clamping assembly to switch between a clamping state and an open state. The rotating button mechanism includes a first connecting plate connected to the right connecting portion, an eccentric shaft, a rotating button connected to the eccentric shaft, and a limiting structure connected to the rotating button to limit a rotating range of the rotating button. The first connecting plate is rotatably connected to the left connecting portion through the eccentric shaft. The rotating button adjusts a distance between the left connecting portion and the right connecting portion by driving the eccentric shaft to eccentrically rotate.