Socket Wrench Quick Release Mechanism for Labor-Saving Operation
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Solution Overview
Problem
Conventional socket wrenches require significant force for attaching and detaching sockets, leading to user inconvenience and premature wear of locking steel balls, necessitating frequent replacement.
Innovation Solution
A quick release device with a press rod and push rod system that allows the locking steel ball to be easily pressed and released, utilizing return springs and through holes in the handle head to adjust the pressing force between the socket and socket plug, enabling convenient attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a locking steel ball is fixedly embedded into the socket plug to strengthen pressing force, then the socket and plug are combined tightly, but significant force is required to attach and detach sockets causing user inconvenience
Solution Approach 1:
The locking steel ball is made movable through a push rod mechanism that can dynamically adjust its position. When the press rod is pressed, it moves the push rod, which in turn moves the locking steel ball to control engagement with the socket. This dynamic positioning allows the system to switch between locked and unlocked states easily, resolving the contradiction between maintaining strong pressing force and enabling easy operation.
Solution Approach 2:
A press rod and push rod mechanism is introduced as an intermediary between the user's manual operation and the locking steel ball. This intermediary system amplifies the user's input force and translates it into precise movement of the locking steel ball, allowing easy attachment and detachment while maintaining sufficient pressing force through the mechanical advantage of the rod mechanism.
2Reliability
If significant force is applied to combine and separate objects repeatedly, then the locking steel ball may be worn and pressing force is decreased, but frequent replacement is necessary increasing cost
Solution Approach 1:
The dynamic push rod mechanism allows the locking steel ball to move smoothly along a controlled path during engagement and disengagement. This controlled movement reduces impact loads and friction compared to forced insertion, thereby reducing wear on the locking steel ball and maintaining pressing force over time, which improves reliability and reduces replacement frequency.
Solution Approach 2:
The mechanism design incorporates features that cushion the locking steel ball against excessive forces during operation. The push rod system is designed to distribute forces evenly and prevent sudden impacts that would cause wear, thereby protecting the locking steel ball from premature degradation and reducing the need for frequent replacements.
3Ease of operation
If a press rod and push rod system is introduced to enable quick release, then attachment and detachment become labor-saving, but device complexity increases
Solution Approach 1:
The press rod and push rod are integrated into a compact arrangement within the socket plug structure. The press rod is positioned to directly actuate the push rod, which in turn controls the locking steel ball. This merged design minimizes the number of separate components while achieving the quick release function, reducing the increase in device complexity.
Solution Approach 2:
The press rod serves multiple functions: it transmits user input force, moves the push rod, and indirectly controls the locking steel ball position. The push rod similarly serves to translate press rod movement into locking ball displacement. This multi-functionality reduces the need for additional specialized components, thereby limiting the increase in device complexity while achieving ease of operation.
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 solution provides a labor-saving and timesaving method for attaching and detaching sockets, reducing wear on the socket plug and enhancing commercial value by allowing for quick and secure connections.
Implementation Method 1
two return springs respectively are disposed between two locking portions and an end of the press rod, and the press rod is pressed inwards from either side
Data Source
AI summary
A quick release device of a socket wrench has a press rod and a push rod disposed in a socket plug so that the push rod can press against the press rod and the press rod can be pushed and returned toward either side. Thus, a locking steel ball can be tightly pressed or released, and a socket and the plug can be quickly released and replaced in a laborsaving manner.


