Tool Rod Connection Structure With Integrated Limiting Sleeve
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Solution Overview
Problem
Existing rod connection methods for hand tools require additional connectors like bolts for stability, making them difficult for women or those lacking strength to assemble quickly and easily, and often lead to confusion and damage during assembly.
Innovation Solution
A rapid assembly type tool rod connection structure comprising an outer sleeve, an inner sleeve, and a fastening sleeve with a reinforced limiting component that connects the inner and fastening sleeves, allowing for easy and secure connection without additional connectors, using a metal tube and connecting tube for axial alignment and positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional connectors such as bolts are used for rod connection, then connection stability and use strength are ensured, but assembly complexity increases and ease of operation deteriorates
Solution Approach 1:
The patent combines the fastening function and limiting function into a single integrated fastening sleeve structure. The fastening sleeve includes both a fastening component (threaded portion) and a limiting component (with limiting teeth), eliminating the need for separate connectors like bolts while maintaining connection stability and simplifying assembly operations.
2Reliability
If additional connectors such as bolts are used for rod connection, then connection stability is ensured, but device complexity increases
Solution Approach 1:
The patent merges multiple functional components into a single fastening sleeve: the threaded fastening portion for securing the connection, the limiting component with limiting teeth for positioning, and the guiding tapered surface for alignment. This integration reduces the number of parts and simplifies the overall connection structure while ensuring stable connection.
3Strength
If traditional fastening methods are used, then connection strength is ensured, but assembly time increases
Solution Approach 1:
The fastening sleeve is pre-designed with an integrated limiting component that features guiding tapered surfaces and limiting teeth. When assembly begins, the tapered surface automatically guides the inner sleeve into correct alignment, and the limiting teeth engage to prevent circumferential displacement, eliminating the need for complex alignment operations and reducing assembly time while maintaining connection strength.
4Reliability
If additional connectors are used for rod connection, then connection reliability is ensured, but ease of manufacture deteriorates
Solution Approach 1:
The fastening sleeve is manufactured as a single integrated component combining the threaded fastening portion, the limiting component with limiting teeth, and the guiding tapered surface. This integration reduces the number of manufacturing steps, eliminates the need for assembling multiple separate connectors, and simplifies production while ensuring reliable connection through the combined functional elements.
Data Source
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AI summary
A rapid assembly type tool rod connection structure comprising an outer sleeve (1), an inner sleeve (8) and a fastening sleeve (5), wherein, the fastening sleeve (5) is connected with the outer sleeve (1); the inner sleeve (8) is sheathed inside of the outer sleeve (1), a reinforced limiting component is provided between the inner sleeve (8) and the fastening sleeve (5), which is connected to the inner sleeve (8) and the fastening sleeve (5) to limit the inner sleeve (8) and the fastening sleeve (5).