Ratchet Wrench Elastic Binding Ring for Secure Workpiece Fixation
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Solution Overview
Problem
Existing ratchet wrenches have through holes for fixing bolts or nuts, leading to potential escape during operation and limited compatibility with single-size tools, requiring multiple wrenches and increasing costs and storage needs.
Innovation Solution
A ratchet wrench design featuring a working end with opposing end faces and through holes, equipped with rotatable ratchets and tool troughs of different sizes to accommodate various workpieces, along with elastic binding rings and fixing rings for secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a through hole is used for fixing the workpiece, then the structure is simple, but the workpiece may escape during operation
Solution Approach 1:
The binding ring is designed to be elastically deformable, allowing it to dynamically adapt to the workpiece dimensions. The binding ring can be compressed during insertion and then expands to clamp the workpiece securely, providing reliable fixation while maintaining a simple through-hole structure.
Solution Approach 2:
The binding ring's elastic properties allow it to change its dimensional parameters (inner diameter) based on the applied force. When compressed, it contracts to pass through the workpiece; when released, it expands to clamp the workpiece, thereby achieving reliable fixation without complex structures.
2Adaptability or versatility
If multiple ratchet wrenches with different sizes are prepared, then different sizes of workpieces can be accommodated, but cost and storage space increase
Solution Approach 1:
The binding ring is designed with a universal sizing mechanism that allows a single binding ring to accommodate multiple workpiece sizes. By adjusting the compression force or selecting from standardized size ranges, one binding ring can securely clamp various diameters of workpieces, eliminating the need for multiple specialized wrenches.
Solution Approach 2:
The elastic binding ring can dynamically adjust its inner diameter to match different workpiece sizes. This dynamic adaptability allows a single binding ring design to serve multiple functions across different workpiece dimensions, reducing the total number of tools needed.
3Ease of manufacture
If the fixing pit is a through hole, then the structure is simple, but the workpiece may protrude and cause slippery escapes
Solution Approach 1:
The elastic binding ring provides dynamic clamping force that adapts to the workpiece surface. This elastic pressure ensures smooth operation by preventing slipping while maintaining the simple through-hole structure, as the binding ring conforms to the workpiece geometry during rotation.
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 continuous rotation of workpieces without protrusion, accommodates different sizes of workpieces, and ensures secure fixation, reducing the need for multiple tools and minimizing operational and storage costs.
Implementation Method 1
The elastic binding ring disposed in the ratchet may clamp and fix the workpiece to avoid the workpiece from escaping
Implementation Method 2
A ratchet wrench for rotating a workpiece with a top side, the ratchet wrench includes a wrench body and a ratchet
Data Source
AI summary
A ratchet wrench for rotating a workpiece with a top side includes a wrench body and a ratchet. The wrench body has a working end. The working end has a first end face and a second end face opposite to each other. The working end is disposed with a through hole. The ratchet is disposed in the through hole and formed with a first tool trough and a second tool trough communicating with each other. The first tool trough is arranged corresponding to the first end face and has a first blocking face. The second tool trough is arranged corresponding to the second end face and has a second blocking face. The workpiece is optionally received in the first tool trough or the second tool trough to make the top side abut against the first blocking face or the second blocking face.