Double-Headed Retaining Ring Pliers Hinge Mechanism
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Solution Overview
Problem
Existing retaining ring pliers require separate tools for installing inner and outer retaining rings, making them inconvenient to carry and use, especially when frequent switching between the two is necessary.
Innovation Solution
A pair of double-headed retaining ring pliers with a hinge mechanism and interchangeable heads, allowing the same tool to install both inner and outer retaining rings by flipping the handles, utilizing drive levers and a return spring to switch between functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate pairs of retaining ring pliers are used for inner and outer retaining rings, then the installation function is specialized and reliable, but the device complexity increases and portability decreases
Solution Approach 1:
The patent combines two separate pairs of retaining ring pliers (one for inner retaining rings and one for outer retaining rings) into a single integrated tool. The pliers feature interchangeable heads that can be attached to the handle, allowing one tool to perform both inner and outer retaining ring installation functions, thereby reducing toolset complexity while maintaining specialized functionality.
Solution Approach 2:
The pliers are designed with universal applicability through interchangeable heads. The handle portion remains constant while different heads (inner retaining ring head and outer retaining ring head) can be attached based on the specific installation task, enabling a single tool to serve multiple specialized functions.
2Reliability
If separate pairs of retaining ring pliers are used for inner and outer retaining rings, then each tool is optimized for its specific function, but the ease of operation decreases due to frequent switching
Solution Approach 1:
The pliers incorporate a dynamic head switching mechanism that allows the user to quickly change between inner and outer retaining ring heads during operation. This dynamic adaptability eliminates the need to set down and pick up different tools, maintaining function-specific performance while significantly improving operational convenience during frequent switching scenarios.
3Manufacturing precision
If separate pairs of retaining ring pliers are used for inner and outer retaining rings, then the installation precision is maintained, but the loss of time increases due to tool switching
Solution Approach 1:
The pliers are prepared in advance with multiple specialized heads that can be quickly attached. The handle is designed with a quick-change mechanism that allows pre-prepared heads to be rapidly swapped without compromising installation precision. This preliminary preparation of multiple heads on a single tool eliminates time loss associated with switching between separate tools while maintaining the precision required for different retaining ring installations.
Data Source
AI summary
A pair of double-headed retaining ring pliers, including handles, a left arm, and a right arm. Middle parts of the left arm and the right arm are hingedly connected by a hinge axle. The handles are divided into a left handle and a right handle. The handles are flipped to enable the retaining ring pliers to have two working states: One is used for installing an outer retaining ring, and the other is used for installing an inner retaining ring. In addition, the left arm and the right arm can be returned by a return spring.