Drain plug linkage structure
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Solution Overview
Problem
Existing drain plug linkage devices require laborious and time-consuming assembly and disassembly processes due to the need for precise alignment and movement of components, such as the connecting rod and lever member, which complicates the connection and disconnection of the driving rod and connecting rod.
Innovation Solution
A drain plug linkage structure featuring a pull rod assembly with a driving rod and connecting rod, where one is equipped with fixing holes and the other with protruding fixing members, allowing for direct connection and easy disconnection by moving relative to each other along the protruding direction, facilitated by elastic hooks and a lock sleeve mechanism for quick assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the connecting rod and lever member are fixed using through holes and engagement mechanisms, then the connection is reliable, but the assembly and disassembly process becomes time-consuming and laborious
Solution Approach 1:
The patent applies the dynamics principle by making the fixing members detachable rather than permanently fixed. The connecting rod can be quickly assembled and disassembled by simply moving it relative to the lever member along the protruding direction, transforming a static fixed connection into a dynamic removable one. This resolves the contradiction by maintaining connection reliability during use while enabling rapid assembly and disassembly.
2Shape
If the fixing position is close to the middle of the driving rod or connecting rod, then the structural compactness is improved, but the assembly and disassembly operation becomes more difficult
Solution Approach 1:
The patent introduces an intermediary mechanism - the protruding fixing members on the lever member that engage with corresponding recesses on the connecting rod. This intermediary feature enables easy assembly and disassembly operations even when the fixing position is centrally located, resolving the contradiction between structural compactness and operational ease.
Data Source
AI summary
A drain plug linkage structure, comprising a pull rod assembly, a driving rod and a drain plug movably fitted in a drain pipe, the driving rod having a front end and a rear end, the front end of the driving rod being inserted from the side of the drain pipe to the drain pipe and connecting with the drain plug, the pull rod assembly comprises a connecting rod and a pull rod connected to each other, wherein one of the driving rod and the connecting rod is provided with a plurality of fixing holes, the other of the driving rod and the connecting rod is provided with a plurality of protruding fixing members, and the fixing members are detachably coupled to the fixing holes. The present invention is provided that the assembly and disassembly of the driving rod and the connecting rod of the present invention are quicker.