Magnetic Tool Connecting Rod for Fast Bit Adjustment
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Solution Overview
Problem
Conventional tool connectors require complex processing, inconvenient adjustment, and multiple installation steps due to threaded structures and relative rotation of components, making them difficult to use and install quickly.
Innovation Solution
A tool connecting rod design featuring a tubular first sleeve member slidably connected to a rod, a second sleeve member, an elastic member, and a magnetic member, with a restriction mechanism, allowing for fast and multi-stage adjustment, easy processing, and simple assembly of a tool bit, utilizing a C-shaped retainer and annular grooves for smooth movement and magnetic attraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If threaded structures are processed on the socket and engaging member, then the connection strength is improved, but the manufacturing complexity and processing time increase significantly
Solution Approach 1:
The patent replaces the threaded mechanical connection system with a magnetic field-based connection system. The engaging member includes a magnetic ring that magnetically attracts the socket, eliminating the need for threaded structures on both components. This substitution maintains connection strength through magnetic force while dramatically simplifying manufacturing processes.
Solution Approach 2:
The patent extracts the threading requirement from the socket and relocates it to the rod through the restriction mechanism. The socket no longer needs threaded structures, and the engaging member uses magnetic attraction instead. This extraction of the threading function from the socket simplifies its manufacturing while maintaining the connection capability through the magnetic engagement system.
2Adaptability or versatility
If the socket and engaging member are rotated relative to each other for adjustment, then the adaptability is improved, but the ease of operation deteriorates due to inconvenient rotation and adjustment
Solution Approach 1:
The patent replaces the rotational mechanical adjustment system with a linear sliding system. The engaging member with magnetic ring slides linearly along the rod to adjust the distance between the magnetic ring and insertion hole, eliminating the need for rotation. This substitution maintains adjustment capability while significantly improving ease of operation through simple linear movement.
Solution Approach 2:
The patent introduces a dynamic sliding mechanism where the engaging member can move freely along the rod within certain limits. The spring provides elastic force to maintain magnetic engagement while allowing linear adjustment, creating a dynamic system that is both adaptable and easy to operate without rotational complexity.
3Manufacturing precision
If the sleeve member is pressed to compress the elastic member, then the positioning accuracy is improved, but the ease of operation worsens due to deflection and difficulty in smooth movement
Solution Approach 1:
The patent replaces the pressing and compressing mechanical system with a magnetic attraction system. The magnetic ring on the engaging member magnetically attracts the socket, automatically positioning them relative to each other without requiring pressing forces. This substitution eliminates deflection issues and provides smooth, force-free positioning while maintaining high positioning accuracy.
4Reliability
If multiple installation steps are required, then the reliability of connection is improved, but the productivity deteriorates due to slow installation speed
Solution Approach 1:
The patent merges multiple installation steps into a single operation. The engaging member with magnetic ring is inserted once, and the magnetic attraction automatically maintains connection between the engaging member and socket. This merging of steps maintains connection reliability through magnetic engagement while dramatically improving installation speed by eliminating sequential pressing, positioning, and securing operations.
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 rapid and stable assembly and disassembly of tool bits with reduced complexity, ensuring smooth operation and preventing detachment issues, while maintaining a simple structure.
Implementation Method 1
a first magnetic member disposed on the assembling end portion
Data Source
AI summary
A tool connecting rod is provided, including: a rod, a first sleeve member, a second sleeve member, an elastic member, a first magnetic member and a restriction mechanism. The rod has an insertion groove. The first sleeve member is tubular and slidably sleeved to the rod, and the first sleeve member includes an assembling end portion. The second sleeve member is slidably sleeved to the first sleeve member. The elastic member is disposed on one of the first sleeve member and the second sleeve member and radially abutted against the other one of the first sleeve member and the second sleeve member. The elastic member is located between an outer circumferential surface of the first sleeve member and an inner circumferential surface of the second sleeve member. The first magnetic member is disposed on the assembling end portion.