Magnetic Driving Device With Retainer Grooves for Quick Bit Changes
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Solution Overview
Problem
Conventional tool adapters for screwdrivers are cumbersome, difficult to assemble, and lack a stable connection mechanism for quick bit changes, leading to inefficient operation.
Innovation Solution
A magnetic driving device with a sleeving rod, movable member, retainer, and elastic member, featuring a simple structure for easy assembly and stable connection with workpieces, utilizing a magnetic end portion and grooves for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional tool adapters are used for bit changes, then the screwdriver can function with different bits, but the adapter structure becomes complicated and assembly time increases
Solution Approach 1:
The adapter is divided into multiple functional segments: a sleeve portion that interfaces with the screwdriver shaft, a bit receiving portion with grooves for different bit types, a retainer component for securing bits, and an elastic member for providing retaining force. This segmentation allows each part to perform its specific function independently, simplifying the overall structure while maintaining versatility
Solution Approach 2:
The adapter design incorporates multiple grooves (first groove and second groove) that can accommodate different types of bits, making a single adapter structure capable of holding multiple bit types. The magnetic driving device can universally interface with various screwdriver types while providing quick bit changes
2Loss of time
If conventional tool adapters are used for bit changes, then different bits can be held, but the connection mechanism lacks stability and quick connection capability
Solution Approach 1:
The patent replaces complex mechanical locking mechanisms with a combination of magnetic attraction and simple elastic retention. The magnetic end portion provides strong holding force to secure bits quickly, while the elastic member maintains stable connection through continuous retaining force, eliminating the need for complicated mechanical assembly and disassembly operations
Solution Approach 2:
The adapter structure enables self-retention of bits through the elastic member that automatically exerts retaining force on the bit. The magnetic attraction provides automatic alignment and securing of the bit when inserted, reducing the need for manual adjustment or complex locking operations by the user
3Ease of manufacture
If conventional tool adapters are used, then bit holding capability is provided, but the structure is difficult to assemble
Solution Approach 1:
The adapter is divided into multiple functional segments: a sleeve portion that interfaces with the screwdriver shaft, a bit receiving portion with grooves for different bit types, a retainer component for securing bits, and an elastic member for providing retaining force. This segmentation allows each part to perform its specific function independently, simplifying the overall structure while maintaining versatility
Solution Approach 2:
The patent combines the bit holding function, retention mechanism, and elastic support into a single integrated adapter structure. The sleeve portion, bit receiving portion, retainer, and elastic member work together as one unified component that can be assembled in a simple sequence, reducing manufacturing complexity compared to separate mechanical locking systems
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
Facilitates quick and stable connection of tool bits, reducing assembly time and enhancing operational efficiency.
Implementation Method 1
a movable member, received in the receiving hole, including a magnetic end portion and a second groove
Data Source
AI summary
A magnetic driving device is provided, including: a sleeving rod, including a connection hole and a receiving hole in communication with the connection hole which are disposed at one end of the sleeving rod, the connection hole being configured to receive a workpiece, a first groove being disposed on a hole wall of the receiving hole; a movable member, received in the receiving hole, including a magnetic end portion and a second groove; a retainer, sleeved on the movable member, extending radially within the first groove and the second groove, axially movable in the first groove; and an elastic member, received in the receiving hole and located between the sleeving rod and the movable member.