Sleeve-and-Jaw Connection Kit for Tool-Free Holder Assembly
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Solution Overview
Problem
Existing mobile payment device holders have complex connection structures that require screwdrivers for installation, leading to tedious and labor-intensive processes.
Innovation Solution
A connection kit with an inner and outer sleeve system, featuring male and female threads, jaws, and limit bumps, allowing for tool-free assembly of a connecting rod and mounting joint, simplifying the installation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional screw connection method is used to fix mounting joints to support rod, then connection strength is ensured, but installation complexity increases and requires additional tools
Solution Approach 1:
The connection structure is divided into separate functional components: the support rod with integrated connection features, mounting joints with corresponding connection elements, and distinct fastening mechanisms. This segmentation allows each component to be optimized independently while simplifying assembly operations.
Solution Approach 2:
The mounting joints and support rod are designed with self-aligning connection features including guide pins, recesses, and integrated fastening elements that automatically position and secure components during assembly without requiring external tools or complex alignment procedures.
2Productivity
If traditional screw connection method is used, then connection reliability is maintained, but installation time increases
Solution Approach 1:
Connection features such as recesses, guide pins, and fastening elements are pre-formed during manufacturing of the support rod and mounting joints. This preliminary preparation eliminates the need for on-site assembly operations like screw driving, significantly reducing installation time while maintaining connection reliability.
Solution Approach 2:
The design skips traditional multi-step fastening operations by implementing integrated connection features that achieve secure attachment in a single insertion motion. The mounting joint is quickly inserted into the support rod where it automatically engages and locks into position, bypassing time-consuming screw tightening procedures.
3Strength
If complex mounting joint structure is used, then connection strength is achieved, but manufacturing cost increases
Solution Approach 1:
Multiple connection functions are merged into integrated features formed directly on the support rod and mounting joint components. The connection structure combines positioning recesses, fastening elements, and alignment features into unified molded or machined features, eliminating the need for separate fasteners and reducing part count while maintaining connection strength.
Solution Approach 2:
The support rod and mounting joint are designed with universal connection features that serve multiple functions: structural support, precise positioning, secure fastening, and alignment guidance. This multi-functionality is achieved through integrated design where single components perform multiple roles, simplifying manufacturing while ensuring robust connections.
Data Source
AI summary
A connection kit includes an inner sleeve and an outer sleeve. The inner sleeve includes a plurality of second gaps, a hollow connecting portion, a plurality of jaws respectively connected to one end of the connecting portion and a plurality of male threads respectively configured on the outer walls of the plurality of jaws. The outer sleeve includes a sleeve body and a female thread, and the plurality of the jaws and the plurality of second gaps are respectively configured in a separated manner. A holder includes the aforementioned connection kit, a connecting rod and a mounting connector sleeved outside the connecting portion. The plurality of jaws are circumferentially configured outside the connecting rod and able to be against the outer wall of the connecting rod. The structure of the connection kit is simple and has low production costs.