Ratchet Wrench with Interchangeable Detachable Sleeves
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Solution Overview
Problem
Conventional ratchet wrenches lack the ability to detach and replace the operating ends to accommodate different sizes of tool holes, limiting their versatility and adaptability.
Innovation Solution
The ratchet wrench design includes a main body with adjustable teeth portions, a cylinder with interchangeable sleeves, and a spring mechanism that allows for the detachment and replacement of sleeves with different diameters, enabling four different tool hole sizes and enhancing user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the operating ends are formed integrally or fixedly connected, then the structural stability is improved, but the adaptability to different tool sizes deteriorates
Solution Approach 1:
The operating end is divided into a fixed portion (integrated with the ratchet mechanism) and a detachable sleeve portion. The sleeve can be removed and replaced with different sized sleeves to accommodate various tool sizes, while the fixed portion remains stable and integrated with the main body.
Solution Approach 2:
The detachable sleeve is designed to fit over the fixed operating end portion, creating a nested structure. The sleeve can be slipped onto or off the fixed portion, allowing for easy replacement while maintaining a compact integrated appearance when assembled.
2Adaptability or versatility
If the ratchet wrench is designed with multiple fixed operating holes, then the versatility is improved, but the device complexity increases
Solution Approach 1:
Instead of creating multiple fixed operating holes with different structures, the invention uses a universal fixed operating end portion that can accommodate multiple sleeve sizes. The detachable sleeve provides the size variation, while the fixed portion remains simple and unified.
Solution Approach 2:
The functionality for different sizes is segmented into separate detachable sleeves rather than being built into the main structure. This allows the core ratchet mechanism to remain simple while providing multiple size options through interchangeable components.
3Adaptability or versatility
If the operating end is made detachable for size replacement, then the adaptability is improved, but the structural stability deteriorates
Solution Approach 1:
The operating end is segmented into a stable fixed portion integrated with the ratchet mechanism and a detachable sleeve portion. The fixed portion maintains structural integrity, while the sleeve provides adaptability through removable replacement.
Solution Approach 2:
The detachable sleeve nests over the fixed operating end portion, creating a stable combined structure when assembled. The nested design ensures proper alignment and secure connection, maintaining stability during use while allowing easy detachment when needed.
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 allows for the ratchet wrench to accommodate multiple tool sizes, increasing user flexibility and purchasing intentions by enabling the use of different diameters of tool holes, thus improving the tool's practicality and adaptability.
Implementation Method 1
a spring received in the cylinder... The first annular surface and the second annular surface are respectively abutted against two ends of the spring
Data Source
AI summary
A ratchet wrench may include a main body, a cylinder, a first sleeve, and a second sleeve. The main body has a head portion and a shank, and a first through hole horizontally penetrates through the head portion, and the cylinder is coupled in the first through hole. The inner peripheries of two ends of the cylinder respectively comprise continuous teeth to form a first tool hole and a second tool hole, and the first tool hole and the second tool hole can respectively receive a first sleeve and a second sleeve which respectively have a third tool hole and a fourth tool hole thereon. Also, the first sleeve and the second sleeve are detachable from the cylinder to install needed sleeves with different diameters of tool holes, which greatly increases the consumer purchasing intentions.