Screwdriver Auxiliary Device with Elastic Jacket
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing auxiliary devices for screwdrivers are complex and costly to assemble, requiring mechanical force for installation and removal, and lack flexibility, which hinders smooth pivoting and limits their reusability.
Innovation Solution
A flexible auxiliary device made of rubber or plastic with a hollow expanding portion, a magnetic element, and spaced ribs and locking portions that allow easy attachment and detachment, enabling smooth pivoting and magnetic attraction of nut bolts while preventing over-drilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid jacket structure is used to retain the nut bolt position, then the structural stability is improved, but the assembly complexity and labor cost increase
Solution Approach 1:
The patent applies a flexible jacket made of elastic material that can expand and contract. The jacket includes an expanding portion with locking portions that can elastically deform to engage with or disengage from the screwdriver rod, enabling simple assembly and disassembly without complex fastening mechanisms while maintaining structural stability during operation
Solution Approach 2:
The jacket is designed with dynamic expanding and contracting capabilities through its elastic material properties. The expanding portion can dynamically adjust its size: expanding to engage locking portions with the rod during assembly, and contracting to release them during disassembly, thereby simplifying the overall device complexity while maintaining stability
2Reliability
If mechanical force is applied to push the jacket onto the screwdriver, then the attachment is secured, but the operation complexity and time increase
Solution Approach 1:
The elastic jacket dynamically changes its dimensions through expansion and contraction. During assembly, the jacket expands to allow locking portions to engage with the rod; during disassembly, it contracts to release the engagement. This dynamic behavior maintains reliable attachment while dramatically simplifying operations, eliminating the need for compelling force
Solution Approach 2:
The jacket utilizes changes in its physical parameters (size, shape, elasticity) to achieve attachment and detachment. By changing the expansion state of the elastic material, the jacket can securely attach to the rod without requiring complex mechanical fastening operations, thereby improving ease of operation while maintaining reliability
3Reliability
If the jacket is pushed onto the screwdriver with constraint, then the embedding is secure, but the pivoting smoothness deteriorates
Solution Approach 1:
The flexible elastic jacket can dynamically adjust its shape and size. The expanding portion with locking portions engages securely with the rod through elastic deformation, ensuring reliable embedding. Meanwhile, the flexibility allows smooth pivoting motion without the friction and resistance encountered by rigid structures, resolving the contradiction between embedding reliability and pivoting smoothness
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
The auxiliary device simplifies assembly and disassembly, ensures smooth operation of the screwdriver, and provides reusable functionality with magnetic attraction and depth limitation for nut bolts, preventing workpiece damage.
Implementation Method 1
The auxiliary device comprises a magnetic element thereon to allow the screwdriver to automatically magnetically catch the head of the nut bolt, such that the screwdriver can stably attract and keep the head of the nut bolt
Data Source
AI summary
An auxiliary device of screwdriver refers to an auxiliary device attached on a screwdriver, which is adapted for keeping coupled on a recess close to an end of the screwdriver. The auxiliary device has an expanding portion and a hollow column formed by the extension of the expanding portion. An end of the expanding portion has a magnetic element arranged thereon. The hollow column is formed by connecting a plurality of ribs and walls. The inner margin of the hollow column extends to form a plurality of locking portions that allow the housing to couple with the screwdriver, wherein the auxiliary device is able to pivot on the screwdriver.